A steel fire door with thermal insulation and without welding process

Abstract

This utility model discloses a weld-free steel insulated fire door, comprising a fire door body, an observation window installed inside the fire door body, an installation mechanism installed on the surface of the fire door body, and a fixing plate fixedly connected to the inner wall of the installation mechanism. A telescopic baffle is inserted inside the fixing plate, and a limiting mechanism is fixedly connected to the outer end of the telescopic baffle. A driving mechanism is fixedly connected to the surface of the telescopic baffle. This utility model uses bolts to threadedly connect the installation plate to the surface of the fire door body, facilitating the assembly and disassembly of the fixing frame. Simultaneously, by pulling the pull rod, the connecting column can cause the telescopic baffle to extend from the fixing plate, facilitating the limiting mechanism to abut against the inner wall of the fixing frame. This allows the fire door body to cover the observation window during use, preventing damage to the observation window from affecting the fireproof performance of the fire door body.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, and in particular to a steel insulated fire door that does not require welding. Background Technology

[0002] Steel fire doors refer to doors with a specified fire resistance performance, consisting of a steel frame, door leaf skeleton, and door leaf panel. If the door leaf is filled with material, it is filled with fireproof and heat-insulating material that is non-toxic and harmless to the human body, and equipped with fireproof hardware.

[0003] Existing fire doors have glass windows installed on their surfaces during use. However, in the event of a fire, the glass is prone to breakage due to heat, allowing fire to spread through the broken areas and affecting the effectiveness of the fire door. To address this issue, we propose a steel insulated fire door with a welding-free process. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a steel insulated fire door that requires no welding process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steel insulated fire door with a welding-free process includes a fire door body, an observation window installed inside the fire door body, an installation mechanism installed on the surface of the fire door body, a fixing plate fixedly connected to the inner wall of the installation mechanism, a telescopic baffle inserted inside the fixing plate, a limit mechanism fixedly connected to the outer end of the telescopic baffle, and a driving mechanism fixedly connected to the surface of the telescopic baffle.

[0007] Preferably, the installation mechanism includes mounting bolts, and a mounting plate is mounted on the surface of the fire door body via the mounting bolts, with a fixing frame fixedly connected to the end of the mounting plate.

[0008] Preferably, two fixing plates are symmetrically fixed at one end of the inner wall of the fixing frame, and the other end of the inner wall of the fixing frame is a through hole, and the through hole is adapted to the size of the observation window.

[0009] Preferably, the distance between the two fixed plates is the same as the thickness of the telescopic baffle.

[0010] Preferably, the limiting mechanism includes a driving rod, the outer end of the telescopic baffle is fixedly connected to the driving rod, and both ends of the driving rod are provided with grooves. The inner wall of the groove is welded to one end of the return spring, and the other end of the return spring is welded to the lower part of the limiting block. The surface of the limiting block is fixedly connected to a pull rod, and both sides of the limiting block are fixedly connected to limiting sliders. The inner wall of the groove is provided with a through groove that matches the pull rod and a sliding groove that matches the limiting slider.

[0011] Preferably, the cross-section of the limiting block is rectangular, and the inner wall of the fixing frame is provided with a slot that matches the limiting block.

[0012] Preferably, the driving mechanism includes a connecting column, the surface of the telescopic baffle is fixedly connected to one end of the connecting column, and the other end of the connecting column is fixedly connected to a pull rod, and the surface of the fixed plate is provided with a strip-shaped through groove adapted to the connecting column.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This device is connected to the surface of the fire door body by bolts passing through the mounting plate and threaded connection, which can facilitate the disassembly and assembly of the fixed frame. At the same time, by pulling the pull rod, the connecting column can drive the telescopic baffle to extend out from the fixed plate, so that the limiting mechanism can abut against the inner wall of the fixed frame. This allows the fire door body to cover the observation window when in use, and prevents damage to the observation window from affecting the fireproof effect of the fire door body.

[0015] 2. After the telescopic baffle drives the driving rod to unfold, the limit block can be reset and inserted into the fixed frame by the elastic force of the return spring itself, which facilitates the limitation of the driving rod. When the telescopic baffle needs to be stored, pulling the pull rod can retract the limit block into the driving rod, which makes it easy for the driving rod to drive the telescopic baffle to retract into the fixed plate. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a steel insulated fire door with a welding-free process proposed in this utility model.

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of the fixed frame and fixed plate structure in the diagram;

[0018] Figure 3 for Figure 1 A three-dimensional schematic diagram of the telescopic baffle and pull rod structure in the middle;

[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the limiting mechanism structure in the middle;

[0020] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the diagram.

[0021] In the picture: 1. Fire door body; 2. Observation window;

[0022] 3. Installation mechanism; 31. Installation bolts; 32. Mounting plate; 33. Fixing frame;

[0023] 4. Fixed plate; 5. Telescopic baffle;

[0024] 6. Limiting mechanism; 61. Driving rod; 62. Return spring; 63. Limiting block; 64. Pulling rod; 65. Limiting slider;

[0025] 7. Drive mechanism; 71. Connecting column; 72. Pull rod. Detailed Implementation

[0026] 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.

[0027] Reference Figure 1-5 A steel insulated fire door with a welding-free process includes a fire door body 1, an observation window 2 installed inside the fire door body 1, an installation mechanism 3 installed on the surface of the fire door body 1, and a fixing plate 4 fixedly connected to the inner wall of the installation mechanism 3. A telescopic baffle 5 is inserted inside the fixing plate 4. The fixing plate 4 can facilitate the storage of the telescopic baffle 5, and a limit mechanism 6 is fixedly connected to the outer end of the telescopic baffle 5. A driving mechanism 7 is fixedly connected to the surface of the telescopic baffle 5.

[0028] Furthermore, refer to Figure 1 and Figure 2 It can be seen that the installation mechanism 3 includes installation bolts 31. The surface of the fire door body 1 is fitted with an installation plate 32 by the installation bolts 31, and a fixing frame 33 is fixedly connected to the end of the installation plate 32. The installation bolts 31 pass through the installation plate 32 and are threadedly connected to the fire door body 1, which makes it easy to disassemble and replace the fixing frame 33.

[0029] Furthermore, refer to Figure 2 and Figure 3 It can be seen that there are two fixing plates symmetrically fixed at one end of the inner wall of the fixing frame 33, and the other end of the inner wall of the fixing frame 33 is a through hole, and the through hole is adapted to the size of the observation window 2. The through hole at the other end of the inner wall of the fixing frame 33 allows for convenient and normal use of the observation window 2 without affecting it.

[0030] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the distance between the two fixed plates 4 is the same as the thickness of the telescopic baffle 5. By setting two fixed plates 4, the telescopic baffle 5 can be easily inserted between the two fixed plates 4, which facilitates the function of the telescopic baffle 5.

[0031] Furthermore, refer to Figure 4 and Figure 5It can be seen that the limiting mechanism 6 includes a driving rod 61. The outer end of the telescopic baffle 5 is fixedly connected to the driving rod 61, and both ends of the driving rod 61 are provided with grooves. The grooves at both ends of the driving rod 61 can be used to conveniently accommodate the limiting block 63. The inner wall of the groove is welded to one end of the return spring 62, and the other end of the return spring 62 is welded to the bottom of the limiting block 63. The elastic force of the return spring 62 can be used to conveniently push the limiting block 63 to reset. The surface of the limiting block 63 is fixedly connected to a pulling rod 64. Both sides of the limiting block 63 are fixedly connected to limiting sliders 65. The inner wall of the groove is provided with a through groove that matches the pulling rod 64 and a sliding groove that matches the limiting slider 65. By pulling the pulling rod 64 along the through groove, the limiting block 63 can be driven. And by the movement of the limiting block 63, the limiting slider 65 can slide along the sliding groove, thus limiting and guiding the limiting block 63.

[0032] Furthermore, refer to Figure 2 and Figure 5 It can be seen that the cross-section of the limiting block 63 is rectangular, and the inner wall of the fixing frame 33 has a slot that matches the limiting block 63. Through the slot opened in the inner wall of the fixing frame 33, the limiting block 63 can be inserted into the slot, which facilitates the limiting effect on the unfolded telescopic baffle 5 and the driving rod 61.

[0033] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the driving mechanism 7 includes a connecting column 71, the surface of the telescopic baffle 5 is fixedly connected to one end of the connecting column 71, and the other end of the connecting column 71 is fixedly connected to a pull rod 72. The surface of the fixing plate 4 is provided with a strip-shaped through groove that is compatible with the connecting column 71. By pulling the pull rod 72, the two connecting columns 71 can drive the telescopic baffle 5 to move. At the same time, the connecting column 71 can move along the strip-shaped through groove on the surface of the fixing plate 4.

[0034] Working principle: When the fire door body 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 5By threading the mounting bolt 31 through the mounting plate 32 and connecting it to the surface of the fire door body 1, the fixed frame 33 can be installed. When the observation window 2 needs to be covered, pulling the pull rod 72 can cause the connecting column 71 to drive the telescopic baffle 5 to extend from the fixed plate 4. When the driving rod 61 abuts against the inner wall of the fixed frame 33, the limit block 63 can be reset and inserted into the slot opened in the inner wall of the fixed frame 33 by the elastic force of the return spring 62, so as to facilitate the function of the telescopic baffle 5 and ensure that the fireproof effect is not affected after the observation window 2 is broken. When the telescopic baffle 5 needs to be stored, pulling the pull rod 64 can cause the limit block 63 to retract into the driving rod 61, and pulling the pull rod 72 can cause the connecting column 71 to drive the telescopic baffle 5 to retract into the fixed plate 4.

[0035] The above is the complete working principle of this utility model.

[0036] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0037] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0038] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A steel insulated fire door that requires no welding process, comprising a fire door body (1), characterized in that, An observation window (2) is installed inside the fire door body (1). An installation mechanism (3) is installed on the surface of the fire door body (1). A fixing plate (4) is fixedly connected to the inner wall of the installation mechanism (3). A telescopic baffle (5) is inserted inside the fixing plate (4). A limit mechanism (6) is fixedly connected to the outer end of the telescopic baffle (5). A driving mechanism (7) is fixedly connected to the surface of the telescopic baffle (5).

2. The steel insulated fire door with a welding-free process according to claim 1, characterized in that, The installation mechanism (3) includes mounting bolts (31), and the surface of the fire door body (1) is fitted with a mounting plate (32) by the mounting bolts (31), and a fixing frame (33) is fixedly connected to the end of the mounting plate (32).

3. A steel insulated fire door with a welding-free process according to claim 1, characterized in that, Two fixing plates (4) are symmetrically fixed at one end of the inner wall of the fixing frame (33), and the other end of the inner wall of the fixing frame (33) is a through hole, and the through hole is adapted to the size of the observation window (2).

4. A steel insulated fire door with a welding-free process according to claim 1, characterized in that, The distance between the two fixed plates (4) is the same as the thickness of the telescopic baffle (5).

5. A steel insulated fire door with a welding-free process according to claim 2, characterized in that, The limiting mechanism (6) includes a driving rod (61). The outer end of the telescopic baffle (5) is fixedly connected to the driving rod (61), and both ends of the driving rod (61) are provided with grooves. The inner wall of the groove is welded to one end of the return spring (62), and the other end of the return spring (62) is welded to the bottom of the limiting block (63). The surface of the limiting block (63) is fixed. A pull rod (64) is fixedly connected to the limit block (63), and limit sliders (65) are fixedly connected to both sides of the limit block (63). The inner wall of the groove is provided with a through groove that matches the pull rod (64) and a sliding groove that matches the limit slider (65).

6. A steel insulated fire door with a welding-free process according to claim 5, characterized in that, The cross-section of the limiting block (63) is rectangular, and the inner wall of the fixing frame (33) is provided with a slot that is compatible with the limiting block (63).

7. A steel insulated fire door with a welding-free process according to claim 1, characterized in that, The driving mechanism (7) includes a connecting column (71), the surface of the telescopic baffle (5) is fixedly connected to one end of the connecting column (71), and the other end of the connecting column (71) is fixedly connected to a pull rod (72). The surface of the fixing plate (4) is provided with a strip-shaped through groove that is compatible with the connecting column (71).

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