Bottom beam supporting plate leveling device for inorganic special-grade fireproof roller shutter door

By adjusting the bracket and adjusting the screw structure to adjust the flatness of the bottom beam support plate, the problem of inconsistent height of the bottom beam support plate is solved, thereby improving the sealing effect and safety of the fireproof rolling shutter door.

CN223938011UActive Publication Date: 2026-02-24SHANGHAI JINGDUO METAL DOOR IND CO LTD
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Patent Information

Application Number
CN202520533973.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-24
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing inorganic fireproof roller shutter doors have inconsistent bottom beam support plates, which prevents the roller shutter doors from being completely sealed, posing a risk of flame and smoke spread and affecting both aesthetics and safety.

Method used

The system employs an adjustable bracket and adjusting screw structure, and through threaded connection and limit groove design, it achieves horizontal adjustment of the bottom beam support plate, ensuring that the support plates are on the same plane.

Benefits of technology

The flatness of the bottom beam support plate was adjusted to ensure the sealing effect of the roller shutter door, thereby improving fireproof isolation performance and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of industrial door inorganic special-grade fireproof rolling shutter doors, and discloses an inorganic special-grade fireproof rolling shutter door bottom beam supporting plate leveling device which comprises a bottom beam and a bottom supporting component arranged on the outer side of the lower end of the bottom beam. A horizontal adjusting mechanism is installed on the outer surface of the bottom beam and close to one side of the bottom supporting component, an adjusting lead screw is installed in the drill hole, the adjusting lead screw penetrates through the outer surface of one side of the top end of the adjusting support and is provided with an L-shaped positioning plate and a nut in a threaded mode, and the adjusting lead screw is rotated to enable the horizontal adjusting mechanism to move up and down so as to drive the bottom beam supporting plate to move up and down. And the upper end of an L-shaped positioning plate moves in a middle through groove, an arranged rotating round strip rotates in an inner rotating groove in a positioning strip, the L-shaped positioning plate is made to move more smoothly, and movement of the L-shaped positioning plate is positioned.
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Description

Technical Field

[0001] This utility model relates to the technical field of inorganic fireproof roller shutter doors for industrial doors, specifically a leveling device for the bottom beam support plate of an inorganic fireproof roller shutter door. Background Technology

[0002] Inorganic fire-resistant roller shutters are a type of door product used for fire isolation. They are widely used in buildings where fire isolation and life protection are required, especially in high-rise buildings, large commercial centers, and industrial plants. Inorganic fire-resistant roller shutters have strong high-temperature resistance and will not deform or be damaged even in high-temperature environments. In the event of a fire, the bottom beam support plate helps to form a good seal between the door curtain and the ground, preventing smoke, flames, and toxic gases from spreading to other areas. The support plate can be kept close to the ground, enhancing the isolation effect of the fire door and reducing the risk of fire spread. Currently, inorganic fire-resistant roller shutters sold and installed in the domestic market have a double-track, double-curtain structure. When the inorganic curtain and bottom beam are lowered to the ground, the bottom beam support plates of the two bottom beams are flush with the ground. When the roller shutter opens, the curtain rises, the bottom beams are above the door opening, and the motor stops running.

[0003] Existing fireproof roller shutters typically require their bases to be installed on the floor or walls of a building. The inorganic curtain fabric filled with fireproof cotton will bulge to a certain thickness, and the thickness is not necessarily uniform. This results in the bottom beam support plates of the two base beams being uneven or not on the same plane, affecting aesthetics. Uneven bases may also cause the track to deform or misalign, preventing the roller shutter from rolling up or down correctly. Consequently, the fireproof roller shutter cannot be completely sealed, creating gaps or voids. In the event of a fire, flames and smoke may spread through these gaps, failing to achieve effective fire isolation. Therefore, the roller shutter is ineffective and has low safety.

[0004] Therefore, we propose an inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide an inorganic high-grade fireproof door roller shutter bottom beam support plate leveling device to solve the problem of inconsistent height or non-plane alignment of the bottom beam support plate mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device, including a bottom beam and a bottom support component disposed on the outer side of the lower end of the bottom beam, the bottom support component including a bottom beam support plate, and a horizontal adjustment mechanism installed on the outer surface of the bottom beam and on the side close to the bottom support component;

[0007] The horizontal adjustment mechanism includes an adjustment bracket installed on the outer surface of the bottom beam. A drilled hole is opened through the middle of the bottom beam. A drilled hole is also opened on the outer surface of the adjustment bracket at the corresponding position of the bottom beam. An adjustment screw is installed inside the drilled hole. An L-shaped positioning plate and a nut are threaded onto the outer surface of one side of the top of the adjustment bracket through the adjustment screw.

[0008] Preferably, the lower end of the adjusting screw has a limiting groove, and the adjusting screw with the limiting groove is locked inside the drill hole at the lower end of the adjusting bracket.

[0009] Preferably, the bottom end of the L-shaped positioning plate has a through mounting hole, and the mounting hole is aligned with the inner side of the nut.

[0010] Preferably, the outer side of the adjusting bracket is provided with a countersunk hole, and a screw is installed inside the countersunk hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model discloses an inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device, wherein an adjustment bracket is installed on the outside of the bottom beam, and the adjustment bracket is fixed to the bottom beam with bolts. By rotating the adjustment screw, the horizontal adjustment mechanism moves up or down, thereby driving the bottom beam support plate to move up and down to achieve the effect of leveling the bottom beam support plate.

[0013] 2. The present invention discloses an inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device, wherein the bottom beam support plate is hung on one side of the L-shaped positioning plate through its own groove. The bottom beam support plate itself is in a movable state, and the upper end of the L-shaped positioning plate moves inside the central groove. The set rotating strip rotates in the inner rotating groove inside the positioning strip, which makes the L-shaped positioning plate move more smoothly and positions the L-shaped positioning plate. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the horizontal adjustment mechanism of this utility model;

[0016] In the diagram: 1. Bottom beam; 2. Horizontal adjustment mechanism; 21. Adjustment bracket; 25. L-shaped positioning plate; 26. Mounting hole; 27. Adjustment screw; 28. Nut; 29. ​​Limiting groove; 3. Bottom support component; 31. Bottom beam support plate; Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figure 1 , Figure 2 An inorganic fireproof roller shutter bottom beam support plate leveling device includes a bottom beam 1 and a bottom support component 3 set on the outer side of the lower end of the bottom beam 1. The bottom support component 3 includes a bottom beam support plate 31. A horizontal adjustment mechanism 2 is installed on the outer surface of the bottom beam 1 and on the side close to the bottom support component 3. Multiple sets of horizontal adjustment mechanisms 2 are provided. The horizontal adjustment mechanisms 2 can be installed at intervals of 1 meter to facilitate the adjustment of the flatness of the bottom beam support plate 31. When the door curtain of the inorganic roller shutter is fully raised, the bottom beam support plate 31 is on the same plane as the ceiling panel, achieving the purpose of concealment.

[0019] The horizontal adjustment mechanism 2 includes an adjustment bracket 21 installed on the outer surface of the bottom beam 1. A drill hole 24 is opened through the middle of the bottom beam 1. The outer surface of the adjustment bracket 21 corresponding to the bottom beam block 1 is also opened with a drill hole 24. An adjustment screw 27 is installed inside the drill hole 24. An L-shaped positioning plate 25 and a nut 28 are threaded on one side of the outer surface of the top of the adjustment bracket 21 through the adjustment screw 27. The upper end of the bottom beam support plate 31 is fitted on the top of the L-shaped positioning plate 25. The nut 28 is fixedly installed on the inner side of the L-shaped positioning plate 25.

[0020] The lower end of the adjusting screw 27 has a limiting groove 29, and the adjusting screw 27 with the limiting groove 29 is locked inside the drill hole 24 at the lower end of the adjusting bracket 21 to restrict the position of the adjusting screw 27.

[0021] The bottom end of the L-shaped positioning plate 25 has a through-hole 26, and the mounting hole 26 is aligned with the inner side of the nut 28. When the adjusting screw 27 is rotated, the movement of the L-shaped positioning plate 25 can adjust the flatness of the bottom beam support plate 31.

[0022] The outer side of the adjusting bracket 21 is provided with a side groove 22, and the inner side of the side groove 22 is provided with a bolt 23. The bolt 23 is used to install the adjusting bracket 21 and the bottom beam block 1.

[0023] In this embodiment: Adjustment brackets 21 are installed on the outer sides of the two bottom beams 1 of the inorganic roller shutter door. Drill holes 24 are drilled through the adjustment brackets 21 and the bottom beams 1 at corresponding positions. Two sets of adjustment screws 27 are inserted into the drill holes 24, and the extension lengths of the two sets of adjustment screws 27 are the same. The drill holes 24 at the lower end of the adjustment brackets 21 are embedded in the limiting grooves 29 of the adjustment screws 27. The drill holes 24 at the lower end of the adjustment brackets 21 position the adjustment screws 27. Bolts 23 are used to fix the adjustment brackets 21 and the bottom beam blocks 1. The highest and lowest points of the bottom beam blocks 1 are measured with a ruler. Then, the adjustment screws 27 are rotated with a hex wrench, and the horizontal adjustment mechanism 2 moves up or down, thereby driving the bottom beam support plate 31 to move up and down, achieving the effect of leveling the bottom beam support plate 31 and solving the problem of the height difference of the bottom beam support plate 31.

[0024] Working principle: By rotating the adjusting screw 27 with a hex wrench, the L-shaped positioning plate 25 and nut 28 move on the outer surface of the adjusting screw 27, and the horizontal adjustment mechanism 2 moves up or down, thereby driving the bottom beam support plate 31 to move up and down, so as to achieve the effect of the bottom beam support plate 31 being horizontal.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A leveling device for the bottom beam support plate of an inorganic fireproof roller shutter door, comprising a bottom beam (1) and a bottom support component (3) disposed on the outer side of the lower end of the bottom beam (1), characterized in that: The bottom support component (3) includes a bottom beam support plate (31), and a horizontal adjustment mechanism (2) is installed on the outer surface of the bottom beam (1) and on the side close to the bottom support component (3). The horizontal adjustment mechanism (2) includes an adjustment bracket (21) installed on the outer surface of the bottom beam (1). A drill hole (24) is opened through the middle end of the bottom beam (1). A drill hole (24) is also opened on the outer surface of the adjustment bracket (21) at the corresponding position of the bottom beam (1). An adjustment screw (27) is installed inside the drill hole (24). An L-shaped positioning plate (25) and a nut (28) are threaded on one side of the outer surface of the top of the adjustment bracket (21).

2. The inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device according to claim 1, characterized in that: The lower end of the adjusting screw (27) is provided with a limiting groove (29), and the adjusting screw (27) with the limiting groove (29) is stuck inside the drill hole (24) at the lower end of the adjusting bracket (21).

3. The inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device according to claim 1, characterized in that: The bottom end of the L-shaped positioning plate (25) is provided with a mounting hole (26), and the mounting hole (26) is aligned with the inner side of the nut (28).

4. The inorganic super-grade fireproof door roller shutter bottom beam support plate leveling device according to claim 2, characterized in that: The adjustment bracket (21) has a side groove (22) on its outer side, and a bolt (23) is installed on the inner side of the side groove (22).