A fire door with facilitated ventilation

Abstract

The utility model relates to fire door technical field discloses a fire door convenient to ventilate, including the door body, the upper end, the lower end, the left end and the right end of door body front side's middle part all are opened in the through ventilation opening, the inside one side of door body is opened in the vertical adjusting groove, the middle part of adjusting groove is connected with drive link through bearing rotation, the outside equidistance of drive link is installed with four groups of connecting rod. The utility model discloses through the spring elasticity, can push the one end of rack and tightly be in the one end of paraffin block, the ventilation opening of door body outside opens completely at this moment, can carry out the ventilation operation, when the fire, the ambient temperature around door body increases, paraffin melts, through the spring elasticity, can push rack and move, through the gear can drive link rotation, through connecting rod can drive the baffle rotation to the specified angle, make the baffle and the ventilation opening alignment, further automatically to the ventilation opening and carry out the plugging, avoid the fire spread.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically a fire door that facilitates ventilation. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation for a certain period of time. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, and can prevent the spread of fire for a certain period of time to ensure the evacuation of personnel.

[0003] According to the authorized announcement number CN222025687U, a fire door that facilitates rapid ventilation is disclosed, including a door body and a movable plate. A cavity is opened in the middle of the door body, and the movable plate is slidably disposed inside the cavity. Multiple first ventilation holes are opened on both sides of the door body. Second ventilation holes are opened on the surface of the movable plate at positions corresponding to the multiple first ventilation holes. Ventilation openings are opened on both sides of the door body on the side away from the first ventilation holes.

[0004] In the process of developing this utility model, the inventors discovered that at least the following problems remain unsolved in the prior art: During normal ventilation, the first electromagnet magnetically attracts the second electromagnet, causing the movable plate to move to one side of the cavity, thus moving multiple second ventilation holes between multiple first ventilation holes and exposing large ventilation openings on both sides, enabling rapid and efficient ventilation. However, in the above case, on the one hand, the first electromagnet inside the door needs to be energized, making the installation process complex and with a low safety factor; on the other hand, workers need to manually control the opening and closing of the solenoid valve to control the opening and closing of the ventilation openings, resulting in low automation.

[0005] Therefore, we propose a fire door that facilitates ventilation and can solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a fire door that facilitates ventilation, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fire door that facilitates ventilation, comprising a door body, wherein ventilation openings are provided through the upper, lower, left, and right ends of the front side of the door body, an adjustment groove is vertically provided on one side of the interior of the door body, a drive rod is rotatably connected to the center of the adjustment groove via a bearing, four sets of connecting rods are equidistantly installed on the outer side of the drive rod, a baffle is fixedly installed at the end of the connecting rod away from the drive rod, and a drive mechanism for automatically driving the baffle to block the ventilation openings is also included.

[0008] As an optional solution to the technical solution of this application, the driving mechanism includes a gear and paraffin wax. An installation groove is provided in the middle of the side of the door body away from the adjustment groove. One end of the driving rod is placed inside the installation groove, passes through the middle of the gear, and is fixedly connected to the gear. A rack is horizontally slidably connected to the lower end inside the installation groove. The gear meshes with the rack. The paraffin wax is placed at one end of the rack. A spring is provided at the end of the rack away from the paraffin wax block.

[0009] As an optional solution to the technical solution of this application, a drain hole is provided through the bottom end of the inner wall of the mounting groove on the side that is in contact with the paraffin.

[0010] As an optional solution to the technical solution of this application, a guide groove is horizontally provided at the end of the rack away from the paraffin block, and a guide rod is horizontally fixedly installed on the inner wall of the mounting groove away from the paraffin block, and the guide rod is slidably connected to the guide groove.

[0011] As an optional solution to the technical solution of this application, the spring is sleeved on the outside of the guide rod, and the rack is matched with the size of the mounting groove.

[0012] As an optional solution to the technical solution of this application, the baffle corresponds to the vent, and the dimensions of the baffle and the vent are matched.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the spring force can push one end of the rack to press against one end of the paraffin block, at which time the ventilation opening on the outside of the door is fully opened, and ventilation can be carried out. When a fire occurs, the ambient temperature around the door rises, the paraffin melts, and the spring force can push the rack to move. The gear can drive the rod to rotate, and the connecting rod can drive the baffle to rotate to a specified angle, so that the baffle is aligned with the ventilation opening, and further automatically seals the ventilation opening to prevent the fire from spreading. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the drive mechanism of a fire door that facilitates ventilation according to the present invention;

[0016] Figure 2 This is a cross-sectional view of the mounting groove of a fire door that facilitates ventilation, according to this utility model.

[0017] Figure 3 This is a cross-sectional view of the adjustment groove of a fire door that facilitates ventilation, according to this utility model.

[0018] Figure 4 This is a side view of the ventilation opening of a fire door that facilitates ventilation according to this utility model.

[0019] In the diagram: 1. Door body; 11. Ventilation opening; 12. Adjustment groove; 13. Drive rod; 14. Connecting rod; 15. Baffle; 2. Mounting groove; 21. Gear; 22. Rack; 23. Spring; 24. Paraffin block; 25. Drain hole; 26. Guide groove; 27. Guide rod. Detailed Implementation

[0020] Please see Figures 1-4 This utility model provides a technical solution: a fire door with convenient ventilation, including a door body 1. Ventilation openings 11 are provided through the middle of the upper, lower, left, and right ends of the front side of the door body 1. An adjustment groove 12 is vertically provided on one side inside the door body 1. A drive rod 13 is rotatably connected to the middle of the adjustment groove 12 via a bearing. Four sets of connecting rods 14 are equidistantly installed on the outer side of the drive rod 13. A baffle 15 is fixedly installed at the end of the connecting rod 14 away from the drive rod 13. The baffle 15 corresponds to the ventilation opening 11, and the baffle 15 and the ventilation opening 11 are aligned... In accordance with the dimensions, it also includes a drive mechanism for automatically driving the baffle 15 to block the vent 11. The drive mechanism includes a gear 21 and paraffin wax. An installation groove 2 is provided in the middle of the side of the door body 1 away from the adjustment groove 12. One end of the drive rod 13 is placed inside the installation groove 2, passes through the middle of the gear 21 and is fixedly connected to the gear 21. A rack 22 is horizontally slidably connected to the lower end inside the installation groove 2. The gear 21 meshes with the rack 22. Paraffin wax is placed at one end of the rack 22. A spring 23 is provided at the end of the rack 22 away from the paraffin wax block 24.

[0021] In this technical solution, the spring force of spring 23 pushes one end of rack 22 to press against one end of paraffin block 24. At this time, the vent 11 on the outside of door 1 is fully open, allowing for ventilation. In the event of a fire, the ambient temperature around door 1 rises, the paraffin melts, and the spring force of spring 23 pushes rack 22 to move. Through gear 21, gear 21 drives rod 13 to rotate, and through connecting rod 14, baffle 15 rotates to a specified angle, aligning baffle 15 with vent 11, further automatically sealing vent 11 and preventing the spread of fire. It should be noted that the dimensions of rack 22 and gear 21 are matched. Under the action of spring 23, when one end of rack 22 abuts against the inner wall of mounting groove 2, rack 22 can drive gear 21 to rotate to a specified angle, so that baffle 15 rotates to precisely seal vent 11.

[0022] In this embodiment, a drain hole 25 is provided through the bottom end of the inner wall of the mounting groove 2 on the side that is in contact with the paraffin wax.

[0023] In this technical solution, the liquid paraffin after the paraffin block 24 is melted can be discharged through the drain hole 25 at the bottom of the mounting groove 2, so as to avoid the liquid paraffin remaining in the mounting groove 2, affecting the movement of the rack 22, and thus affecting the opening and closing of the vent 11.

[0024] In this embodiment, a guide groove 26 is horizontally provided at the end of the rack 22 away from the paraffin block 24, and a guide rod 27 is horizontally fixedly installed on the inner wall of the mounting groove 2 away from the paraffin. The guide rod 27 is slidably connected to the guide groove 26, and the spring 23 is sleeved on the outside of the guide rod 27. The rack 22 and the mounting groove 2 are matched in size.

[0025] In this technical solution, the guide rod 27 inside the mounting groove 2 is slidably connected to the guide groove 26 opened in the rack 22, which can improve the movement stability of the rack 22. Moreover, the guide rod 27 can limit the spring 23 to prevent the spring 23 from tilting during compression and extension, thus affecting the performance. It should be noted that the elastic force of the spring 23 can drive the baffle 15 at one end of the connecting rod 14 to rotate in the adjusting groove 12.

[0026] When a fire door with good ventilation is used, the spring force of the spring 23 can push one end of the rack 22 to press against one end of the paraffin block 24. At this time, the ventilation opening 11 on the outside of the door 1 is fully opened, and ventilation can be carried out. When a fire occurs, the ambient temperature around the door 1 rises, the paraffin melts, and the spring force of the spring 23 can push the rack 22 to move. The gear 21 can drive the rod 13 to rotate, and the connecting rod 14 can drive the baffle 15 to rotate to a specified angle, so that the baffle 15 is aligned with the ventilation opening 11, and further automatically seals the ventilation opening 11 to prevent the fire from spreading. The liquid paraffin after the paraffin block 24 melts can be discharged through the drain hole 25 at the bottom of the mounting groove 2 to prevent liquid paraffin from remaining in the mounting groove 2, affecting the movement of the rack 22, and thus affecting the opening and closing of the ventilation opening 11.

Claims

1. A fire door facilitating ventilation, comprising a door body (1), characterized in that, Ventilation openings (11) are provided through the middle of the upper, lower, left and right ends of the front side of the door body (1). An adjustment groove (12) is vertically provided on one side inside the door body (1). A drive rod (13) is rotatably connected to the middle of the adjustment groove (12) through a bearing. Four sets of connecting rods (14) are equidistantly installed on the outer side of the drive rod (13). A baffle (15) is fixedly installed on the end of the connecting rod (14) away from the drive rod (13). The door body (11) also includes a drive mechanism for automatically driving the baffle (15) to block the ventilation openings (11).

2. The fire door with easy ventilation according to claim 1, characterized in that: The drive mechanism includes a gear (21) and paraffin wax. An installation groove (2) is provided in the middle of the side of the door body (1) away from the adjustment groove (12). One end of the drive rod (13) is placed inside the installation groove (2) and passes through the middle of the gear (21) and is fixedly connected to the gear (21). A rack (22) is horizontally slidably connected to the lower end of the installation groove (2). The gear (21) meshes with the rack (22). The paraffin wax is placed at one end of the rack (22). A spring (23) is provided at the end of the rack (22) away from the paraffin wax block (24).

3. A fire door with easy ventilation according to claim 2, characterized in that: The bottom of the inner wall of the mounting groove (2) on the side that is in contact with the paraffin wax is provided with a drain hole (25).

4. A fire door with easy ventilation according to claim 3, characterized in that: The rack (22) has a horizontal guide groove (26) at one end away from the paraffin block (24), and a guide rod (27) is horizontally fixedly installed on the inner wall of the mounting groove (2) away from the paraffin. The guide rod (27) is slidably connected to the guide groove (26).

5. A fire door with easy ventilation according to claim 4, characterized in that: The spring (23) is sleeved on the outside of the guide rod (27), and the rack (22) is matched with the size of the mounting groove (2).

6. A fire door with easy ventilation according to claim 1, characterized in that: The baffle (15) corresponds to the vent (11), and the dimensions of the baffle (15) and the vent (11) are matched.

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