A cast aluminum fire door body structure

Abstract

The utility model belongs to the technical field of fireproof door, specifically relates to a cast aluminium fireproof door body structure, including the frame, the inside hinged cast aluminium door of frame, is established on the surface of cast aluminium door and has the inlay groove, the inlay groove is provided with two parallel, and the transverse middle line of inlay groove is located at the transverse middle line of cast aluminium door, the utility model, the pressing plate is loosened after adjusting, at this moment, spring will reset, thereby drive pull rod to move to the built -in column inside, so the other end of pull rod will drive the pressing plate to move to the built -in strip surface synchronously. With the pressing plate reset, at this moment, the rubber strip of pressing plate side will be extruded in the spring effect in the opposite side of the pair of links, then the other side of the pair of links is installed between another pressing plate and built -in strip with the same method, so, when pasting the pair of links, the above -mentioned mode not only makes the butt joint between the pair of links and cast aluminium door more convenient, and the mode does not need to use the glue, so as to also will not leave the glue printing on cast aluminium door, to influence the degree of the appearance of cast aluminium door appearance.

Description

Technical Field

[0001] This utility model belongs to the field of fire door technology, specifically relating to a cast aluminum fire door structure. Background Technology

[0002] The frame of the cast aluminum fire door is made of high-strength cast aluminum, which is lighter than traditional fire door materials while possessing excellent strength and corrosion resistance, greatly improving the door's durability. The door core is made of non-combustible materials such as inorganic fireproof board and rock wool. These materials not only have good heat insulation properties, effectively slowing down heat transfer, but also do not release toxic or harmful gases at high temperatures, providing reliable protection for life and property.

[0003] Spring Festival, as China's most important traditional festival, carries profound cultural significance. Every Spring Festival, people have the custom of pasting couplets on their doors to pray for a peaceful and prosperous new year and to add to the festive atmosphere. Currently, most people choose to glue the couplets to their doors, a simple and easy method, but it also brings many problems.

[0004] For cast aluminum fire doors, the adhesive used to attach couplets leaves stubborn glue residue on the door surface. Under daily exposure to wind, sun, and rain, this residue doesn't disappear naturally; instead, it gradually ages and hardens, adhering tightly to the door surface. Over time, the accumulated glue residue from pasting the couplets each year makes the door surface look mottled and unsightly. The presence of this residue not only ruins the original smooth lines and refined appearance of the cast aluminum fire door, causing it to lose its luster, but also dulls the door's color, severely impacting its overall aesthetics. Utility Model Content

[0005] The purpose of this invention is to provide a structure for a cast aluminum fireproof door, aiming to solve the problem of adhesive residue left on the door surface after gluing couplets. Under daily exposure to wind, sun, and rain, this adhesive residue not only fails to disappear naturally but also gradually ages and hardens, adhering tightly to the door surface. Over time, the accumulated adhesive residue from pasting couplets each year causes the door surface to become mottled and unsightly. The presence of this adhesive residue not only damages the original smooth lines and exquisite appearance of the cast aluminum fireproof door, causing it to lose its proper luster, but also causes the door color to darken, seriously affecting the overall aesthetics of the door.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cast aluminum fireproof door structure, including a frame, a cast aluminum door hinged inside the frame, a fitting groove being formed on the surface of the cast aluminum door, two fitting grooves being arranged in parallel, and the horizontal midline of the fitting groove being located at the horizontal midline of the cast aluminum door.

[0007] Each of the fitting slots has an internally fitted inner strip, and an inner post is fixedly fitted inside the upper and lower ends of the inner strip. A tie rod is movably sleeved inside each inner post, and one end of the tie rod passes through a pressure plate. The longitudinal length of the pressure plate is the same as the longitudinal length of the inner strip, and the transverse width of the pressure plate is two-thirds of the transverse width of the inner strip. The pressure plate is located on one side of the center position of the inner strip.

[0008] In order to enable the pressure plate to move closer to the outer wall of the inner strip when the pull rod moves into the inner column, as a cast aluminum fire door structure of this utility model, preferably, the diameter of the end of the pull rod that passes through the pressure plate is larger than the diameter of the part that passes through the pressure plate, and the pressure plate and the inner strip are parallel to each other.

[0009] An adhesive strip is glued to the side wall of one of the two pressure plates opposite to each other, and a limiting plate is fixedly installed on the outer wall of the other side of the pressure plate. A movable groove is opened between the two built-in strips on the side away from each other, and the limiting plate is movably inserted into the inside of the movable groove.

[0010] In order to keep the trajectory of the pressure plate constant during movement, as a preferred embodiment of the cast aluminum fireproof door structure of this utility model, a spring is provided in the built-in column, one end of the spring is fixedly connected to the inner wall of the built-in column, and the other end of the spring is fixedly connected to one end of the pull rod extending into the interior of the built-in column.

[0011] The top view of the assembled limiting plate and pressure plate is an "L" shaped structure. The maximum lateral depth inside the movable groove is greater than the maximum lateral movement length of the limiting plate, and the vertical length between the lateral inner walls of the built-in columns is greater than the maximum lateral length of the limiting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] Locate the pressure plate installed on the cast aluminum door. Pull the pressure plate to one side by hand; a gap will appear between the pressure plate and the inner strip. Smoothly insert one side of the couplet into the gap between the pressure plate and the inner strip. Fine-tune the position of the couplet to ensure it is straight and aesthetically pleasing.

[0014] After adjusting the position, release the pressure plate. At this point, the spring inside the inner column begins to function, automatically resetting. During the spring's reset process, it moves the connected pull rod inwards towards the inner column, and the movement of the pull rod in turn moves the pressure plate towards the inner strip. As the pressure plate resets, the rubber strip on one side of the pressure plate, under the force of the spring, tightly presses against one side of the coupling, fixing it in place.

[0015] Following the same steps, install the couplet on the other side, embedding it into the gap between another pressure plate and the built-in strip. This method of affixing the couplet eliminates the need for glue, preventing adhesive residue from remaining on the door surface and maintaining the smooth, aesthetically pleasing appearance of the cast aluminum fireproof door. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the distribution structure of the mounting groove on a cast aluminum door, as provided in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the structure of the spring when it is stretched, as provided in an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the docking structure of the active groove and the limiting plate provided in the embodiment of this application.

[0021] Figure 5 Provided for the embodiments of this application Figure 1 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Frame; 2. Cast aluminum door; 3. Fitting groove; 4. Internal strip; 41. Movable groove; 5. Internal column; 51. Spring; 6. Pull rod; 7. Pressure plate; 71. Adhesive strip; 72. Limiting plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 The present invention provides the following technical solution: a cast aluminum fire door body structure, including a frame 1, a cast aluminum door 2 hinged inside the frame 1, a fitting groove 3 opened on the surface of the cast aluminum door 2, two fitting grooves 3 are arranged in parallel, and the horizontal center line of the fitting groove 3 is located at the horizontal center line of the cast aluminum door 2.

[0025] Cast aluminum door 2 is made of aluminum alloy, which gives it excellent fire resistance and meets fire protection requirements.

[0026] Each fitting groove 3 has an internally fitted inner strip 4 with an interference fit. An inner post 5 is fixedly fitted into the upper and lower ends of the inner strip 4. A tie rod 6 is movably sleeved inside each inner post 5. One end of the tie rod 6 is connected to the pressure plate 7. The longitudinal length of the pressure plate 7 is the same as the longitudinal length of the inner strip 4. The transverse width of the pressure plate 7 is two-thirds of the transverse width of the inner strip 4. The pressure plate 7 is located on one side of the center position of the inner strip 4.

[0027] When the pressure plate 7 moves the adhesive strip 71 to press the couplet onto the surface of the inner strip 4, both the adhesive strip 71 and the inner strip 4 will deform to a certain extent, thus making the couplet more firmly installed between the adhesive strip 71 and the inner strip 4.

[0028] Preferably, the diameter of the end of the pull rod 6 that passes through the pressure plate 7 is larger than the diameter at the point where it passes through the pressure plate 7, and the pressure plate 7 and the built-in strip 4 are parallel to each other;

[0029] The built-in strip 4 is made of deformable hard rubber. When in use, press the built-in strip 4 into the inside of the fitting groove 3. After the built-in strip 4 is fully aligned with the fitting groove 3, the built-in strip 4 will be fixed inside the fitting groove 3.

[0030] In addition, after the built-in strip 4 is installed into the fitting groove 3, the surface of the built-in strip 4 and the surface of the cast aluminum door 2 are at the same level. When the couplet is sandwiched between the pressure plate 7 and the built-in strip 4, one side of the outer wall of the couplet will also be in flat contact with the surface of the cast aluminum door 2.

[0031] A strip 71 is glued to the side wall of the two pressure plates 7 on opposite sides. A limiting plate 72 is fixedly installed on the outer wall of the other side of the pressure plate 7. A movable groove 41 is opened between the two inner bars 4 on opposite sides. The limiting plate 72 is movably inserted into the movable groove 41.

[0032] In actual use, when the pressure plate 7 moves, it will drive the limit plate 72 to move. When the limit plate 72 moves, it will move along the internal trajectory of the movable groove 41. In this way, the overall movement of the pressure plate 7 will be more stable, which makes it easier for the user to operate.

[0033] When affixing couplets to the cast aluminum door 2, two limiting plates 72 are installed on both sides of the pressure plate 7. Once the couplets are properly placed between the two pressure plates 7, the limiting plates 72 begin to play a crucial role. In daily life, the outdoor environment is complex, and wind interference is a major challenge to overcome when affixing couplets. At this time, the limiting plates 72 on both sides effectively block the wind blowing from the sides. When the wind attempts to move the couplets, causing fluctuations at their joints, the limiting plates 72, by virtue of their position, can effectively block and counteract the wind's impact on the couplets. This blocking mechanism greatly reduces the possibility of the couplets swaying or shifting due to wind.

[0034] Preferably, a spring 51 is provided in the built-in column 5, one end of the spring 51 is fixedly connected to the inner wall of the built-in column 5, and the other end of the spring 51 is fixedly connected to one end of the pull rod 6 that extends into the interior of the built-in column 5.

[0035] The pull rod 6 has an "I" shaped structure on the side, with one end set inside the built-in column 5 and connected to the spring 51, and the other end passing through the pressure plate 7 and located on one side of the pressure plate 7.

[0036] The surface of the pressure plate 7 is provided with a round hole, and the pull rod 6 can be completely hidden in the round hole of the pressure plate 7. When the spring 51 contracts, one end of the spring 51 will drive the pull rod 6 to move. When the pull rod 6 moves, it can drive the pressure plate 7 to move, so that the pressure plate 7 can move closer to the surface of the inner strip 4.

[0037] The top view of the assembled limiting plate 72 and pressure plate 7 is an "L" shaped structure. The maximum lateral depth inside the movable groove 41 is greater than the maximum lateral movement length of the limiting plate 72, and the vertical length between the lateral inner walls of the built-in column 5 is greater than the maximum lateral length of the limiting plate 72.

[0038] In practical use, when it is necessary to connect the couplet to the cast aluminum door 2, first locate the pressure plate 7 installed on the surface of the cast aluminum door 2. Hold the edge of the pressure plate 7 with your hand and pull it to one side. As the pulling force is applied, a gap gradually appears between one side of the pressure plate 7 and the inner strip 4, allowing the couplet to be inserted.

[0039] Next, insert one side of the couplet into the gap between the pressure plate 7 and the built-in strip 4. When inserting, ensure that the edges of the couplet are flat to avoid wrinkles or skewing. Then, make minor adjustments to the position of the couplet up and down and left and right to ensure that it is in the ideal position for pasting on the cast aluminum door 2.

[0040] After adjustment, release the pressure plate 7. At this time, the spring 51 inside the built-in column 5 begins to reset due to the disappearance of external force. The reset of the spring 51 drives the connected pull rod 6 to move into the built-in column 5. Since the pull rod 6 is connected to the other end of the pressure plate 7, the movement of the pull rod 6 will synchronously drive the pressure plate 7 to move towards the surface of the built-in strip 4.

[0041] As the pressure plate 7 gradually returns to its original position, the adhesive strip 71 on one side of the pressure plate 7 is tightly pressed against the couplet side under the continuous force of the spring 51. The adhesive strip 71 not only increases the friction between the pressure plate 7 and the couplet, ensuring a secure fixation, but also prevents the pressure plate 7 from directly contacting the couplet, thus preventing damage to the couplet's surface. Next, the other side of the couplet is installed using the same method. In this way, when attaching the couplet, the above method not only makes the connection between the couplet and the cast aluminum door 2 more convenient and efficient, but also eliminates the need for glue, avoiding the risk of corrosion from glue residue on the cast aluminum door 2. It also prevents glue marks from being left on the cast aluminum door 2, maximizing the aesthetic appearance of the cast aluminum door 2, and also provides convenience for future couplet replacements.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A cast aluminum fireproof door structure, comprising a frame (1), wherein a cast aluminum door (2) is hinged inside the frame (1), characterized in that, The surface of the cast aluminum door (2) is provided with a fitting groove (3), and two fitting grooves (3) are arranged in parallel, and the horizontal center line of the fitting groove (3) is located at the horizontal center line of the cast aluminum door (2). Each of the fitting grooves (3) has an internally fitted inner strip (4) with an interference fit. An inner post (5) is fixedly fitted inside the upper and lower ends of the inner strip (4). A tie rod (6) is movably sleeved inside each inner post (5). One end of the tie rod (6) is connected to the pressure plate (7). The longitudinal length of the pressure plate (7) is the same as the longitudinal length of the inner strip (4). The transverse width of the pressure plate (7) is two-thirds of the transverse width of the inner strip (4). The pressure plate (7) is located on one side of the center position of the inner strip (4).

2. The cast aluminum fireproof door structure according to claim 1, characterized in that: The diameter of the end of the pull rod (6) that passes through the pressure plate (7) is larger than the diameter at the point where it passes through the pressure plate (7), and the pressure plate (7) and the inner strip (4) are parallel to each other.

3. The cast aluminum fireproof door structure according to claim 1, characterized in that: A strip (71) is glued to the side wall of one side of the two pressure plates (7), and a limit plate (72) is fixedly installed on the outer wall of the other side of the pressure plate (7).

4. The cast aluminum fireproof door structure according to claim 1, characterized in that: The two built-in strips (4) are provided with a movable groove (41) on the side away from each other, and a limiting plate (72) is movably inserted into the movable groove (41).

5. The cast aluminum fireproof door structure according to claim 4, characterized in that: The top view of the assembled limiting plate (72) and pressure plate (7) is an "L" shaped structure, and the maximum lateral depth inside the movable groove (41) is greater than the maximum lateral movement length of the limiting plate (72).

6. The cast aluminum fireproof door structure according to claim 3, characterized in that: A spring (51) is provided in the built-in column (5). One end of the spring (51) is fixedly connected to the inner wall of the built-in column (5), and the other end of the spring (51) is fixedly connected to one end of the pull rod (6) that extends into the interior of the built-in column (5).

7. A cast aluminum fireproof door structure according to claim 1 or 3, characterized in that: The vertical length between the inner walls of the built-in column (5) is greater than the maximum horizontal length of the limiting plate (72).

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