Fireproof board and keel for mounting the same

CN224902624UActive Publication Date: 2026-10-27ZHEJIANG ZHONGHAI CONSTR GRP CO LTD
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Patent Information

Application Number
CN202521764628.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-10-27
Estimated Expiration
2035-08-19

AI Technical Summary

Technical Problem

[0002]防火板又名耐火板,学名为热固性树脂浸渍纸高压层积板,是表面装饰用的耐火建材,防火板是原纸(钛粉纸、牛皮纸)经过三聚氰胺与酚醛树脂的浸渍工艺,经过高温高压环境制成,传统的防火板在安装时,通常是利用胶水粘附龙骨上或者利用钉子钉在龙骨上,采用胶水粘附的固定形式,在夏季的高温高湿环境下时,胶水的粘附性有所下降,可能会导致防火板与龙骨之间脱离;而采用钉子连接的固定形式,会破坏防火板表层的完整性,影响防火板的美观性,因此需要重新覆盖一层完整的表层,从而增加了施工步骤,影响施工速度

Benefits of technology

[0010]本实用新型的有益效果是:本实用新型通过螺纹杆与螺纹套筒之间的螺纹连接,能够将连接销安装在防火板上,在防火板上安装好多个连接销后,将防火板的侧边对齐连接杆,连接销对齐卡接环,向靠近龙骨的方向按压防火板,则使得限位头穿过卡接环,卡接环嵌入卡接杆内,限位头配合限位环卡在卡接环沿其轴线方向上的两端,从而实现防火板快速安装在龙骨上,即避免了胶水失效而导致防火板脱落,也避免了钉子破坏防火板的表层完整性。

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Abstract

The utility model relates to the field of fireproof plate, specifically disclose a fireproof plate and its installation keel, including a plurality of connecting pieces and a plurality of connecting rods, connecting piece is used to connect a plurality of connecting rods and form the grid keel, connecting piece includes the main part and four sleeves of fixed setting on the outer periphery of main part, four sleeves and main part constitute the cross shape, the utility model discloses the threaded connection between threaded rod and threaded sleeve, can install the connecting pin on the fireproof plate, after installing a plurality of connecting pins on the fireproof plate, the side of fireproof plate is aligned with connecting rod, connecting pin is aligned with the clamping ring, presses the fireproof plate to the direction of being close to the keel, then makes the limiting head pass through the clamping ring, and the clamping ring is embedded in the clamping rod, and the limiting head cooperates with the limiting ring and is clamped in the both ends of clamping ring along its axial direction, thereby realizes the quick installation of fireproof plate on the keel, avoids the falling of fireproof plate caused by the failure of glue, also avoids the destruction of the surface integrity of fireproof plate by nail.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof boards, specifically a fireproof board and its installation keel. Background Technology

[0002] Fireproof board, also known as fire-resistant board, is scientifically called thermosetting resin impregnated paper high-pressure laminate. It is a fire-resistant building material used for surface decoration. Fireproof board is made from base paper (titanium powder paper, kraft paper) through a melamine and phenolic resin impregnation process, and then manufactured under high temperature and pressure. Traditionally, fireproof boards are usually glued to the joists or nailed to them during installation. The glue-adhesive fixing method has reduced adhesiveness in the high temperature and humidity environment of summer, which may cause the fireproof board to detach from the joists. The nail fixing method will damage the integrity of the fireproof board surface, affecting its aesthetics. Therefore, a new complete surface layer needs to be applied, which increases the construction steps and affects the construction speed. Utility Model Content

[0003] The purpose of this utility model is to provide a fireproof board and its installation keel to overcome the above-mentioned defects in the prior art.

[0004] According to the present invention, a fireproof board and its installation keel include multiple connectors and multiple connecting rods; The connector is used to connect multiple connecting rods to form a grid-like keel. The connector includes a main body and four sleeves fixed on the outer periphery of the main body. The four sleeves and the main body form a cross shape. The two ends of the connecting rod are detachably connected to the sleeves on two adjacent connectors. The connecting rod is fixed with several snap-fit ​​rings evenly distributed along its length. The snap-fit ​​rings are annular and have slits parallel to the axis. The snap-fit ​​rings are fixedly connected to the fireproof board by connecting pins. The connecting pins include threaded rods and snap-fit ​​rods. The snap-fit ​​rods can be fitted into the snap-fit ​​rings. The two ends of the snap-fit ​​rods are respectively fixed with limiting heads and limiting rings. The diameters of the limiting heads and limiting rings are larger than the inner diameter of the snap-fit ​​rings. The end of the limiting head away from the snap-fit ​​rod is frustoconical and its diameter is smaller than the inner diameter of the snap-fit ​​ring. The threaded rod is fixed to the end face of the limiting ring away from the limiting head. The threaded rod is detachably connected to the fireproof board.

[0005] Preferably, the plurality of snap-fit ​​rings are evenly arranged on both sides of the connecting rod, and the axis of the snap-fit ​​rings is perpendicular to the fireproof board.

[0006] Preferably, the sleeve has a recessed groove on the side of the sleeve away from the main body, and the end of the connecting rod is embedded in the recessed groove.

[0007] Preferably, the connecting rod is hollow inside and open at both ends, with a through hole at the end of the connecting rod, and a circular hole corresponding to the through hole on the side wall of the fitting groove, with a connecting block fitted inside the end of the connecting rod, and a bolt threaded through the circular hole and the through hole connected to the connecting block.

[0008] This utility model also provides a fireproof board, which is installed on the above-mentioned keel and is installed on the keel by the connecting pin. The fireproof board includes a base layer and a surface layer fixed on its two side surfaces. Preferably, the base layer has multiple reinforcing plates fixed inside, corresponding to the snap rings, and a connecting plate is fixed between adjacent reinforcing plates. A threaded sleeve is fixed inside the reinforcing plate, and the threaded rod is threadedly connected to the threaded sleeve. A circular through groove corresponding to the snap ring is opened on the reinforcing plate near the keel, and the threaded rod passes through the circular through groove.

[0009] Preferably, the minimum distance between the axis of the threaded rod and the side of the base layer is equal to the minimum distance between the axis of the snap ring and the centerline of the connecting rod parallel to its length direction.

[0010] The beneficial effects of this utility model are as follows: This utility model, through the threaded connection between the threaded rod and the threaded sleeve, enables the connecting pin to be installed on the fireproof board. After installing multiple connecting pins on the fireproof board, align the side of the fireproof board with the connecting rod, align the connecting pin with the snap ring, and press the fireproof board towards the keel. This causes the limiting head to pass through the snap ring, and the snap ring to embed into the snap rod. The limiting head, in conjunction with the limiting ring, is engaged at both ends of the snap ring along its axial direction, thereby enabling the fireproof board to be quickly installed on the keel. This avoids the fireproof board from falling off due to glue failure and also avoids nails damaging the surface integrity of the fireproof board. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a utility model Figure 2 A diagram of AA in the middle; Figure 4 This is a utility model Figure 3 Enlarged view of point C in the middle; Figure 5 This is a utility model Figure 2 A schematic diagram of BB; Figure 6 This is a utility model Figure 5 Enlarged view of point D; Figure 7 This is a cross-sectional view of the connecting rod and connecting parts in the horizontal direction in this utility model; Figure 8 This is a utility model Figure 7 Enlarged diagram at point F; Figure 9 This is an exploded view of this utility model; Figure 10 This is a utility model Figure 9 Enlarged diagram of point G in the middle.

[0012] In the picture: 10. Base layer; 11. Surface layer; 12. Threaded sleeve; 13. Reinforcing plate; 14. Connecting plate; 20. Connecting rod; 21. Snap ring; 22. Connecting block; 30. Main body; 31. Sleeve; 33. Fitting groove; 40. Threaded rod; 41. Limiting ring; 42. Limiting head; 43. Snap rod. Detailed Implementation

[0013] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are merely simplified descriptions for the convenience of describing this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up / down and left / right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human errors. The specific features of this fireproof board and its installation keel are described in detail below: One embodiment of this utility model: Reference Figures 1-10 This utility model provides a fireproof board and its installation keel, including multiple connectors and multiple connecting rods 20; The connector is used to connect multiple connecting rods 20 to form a grid-like keel. The connector includes a main body 30 and four sleeves 31 fixed on the outer periphery of the main body 30. The four sleeves 31 and the main body 30 form a "+" shape. The two ends of the connecting rod 20 are detachably connected to the sleeves 31 on the two adjacent connectors. A number of snap-fit ​​rings 21 are fixed on the connecting rod 20 at equal intervals along its length. The snap-fit ​​rings 21 are annular and have gaps parallel to the axis. The snap-fit ​​rings 21 are fixedly connected to the fireproof board by connecting pins. The connecting pins include threaded rods 40 and snap-fit ​​rods 43. The snap-fit ​​rods 43 can be fitted into the snap-fit ​​rings 21. The two ends of the snap-fit ​​rods 43 are respectively fixed with limiting heads 42 and limiting rings 41. The diameters of the limiting heads 42 and limiting rings 41 are larger than the inner diameter of the snap-fit ​​rings 21. The end of the limiting head 42 away from the snap-fit ​​rod 43 is frustoconical and its diameter is smaller than the inner diameter of the snap-fit ​​ring 21. The threaded rod 40 is fixed on the end face of the limiting ring 41 away from the limiting head 42. The threaded rod 40 is detachably connected to the fireproof board.

[0015] Multiple snap-fit ​​rings 21 are evenly arranged on both sides of the connecting rod 20, and the axis of the snap-fit ​​rings 21 is perpendicular to the fireproof board.

[0016] The sleeve 31 has a recessed groove 33 on the side of the sleeve 31 away from the main body 30, which is recessed towards the main body 30. A circular groove is provided at the center of the main body 30 to reduce the weight of the connector. The end of the connecting rod 20 is embedded in the groove 33.

[0017] The connecting rod 20 is hollow inside and open at both ends. A through hole is opened at the end of the connecting rod 20. A round hole corresponding to the through hole is opened on the side wall of the fitting groove 33. A connecting block 22 is fitted inside the end of the connecting rod 20. A bolt that passes through the round hole and the through hole is threaded on the connecting block 22.

[0018] This utility model also provides a fireproof board, which is installed on the above-mentioned keel and is installed on the keel by connecting pins. The fireproof board includes a base layer 10 and a surface layer 11 fixed on its two side surfaces. The surface layer 11 is formed by composite of wear-resistant layer, decorative colored paper and kraft paper. The base layer 10 is formed by laminating a mixture of silica, calcium oxide, reinforcing fiber and water. When manufacturing the base layer 10, the connecting plate 14, threaded sleeve 12 and reinforcing plate 13 are placed in the mold. After the base layer 10 is laminated, the length of the threaded sleeve 12 is consistent with the thickness of the base layer 10. When installing the fireproof board, multiple holes consistent with the threaded sleeve 12 are opened on the surface layer 11 near the keel to facilitate the installation of connecting pins. Multiple reinforcing plates 13 corresponding to the snap rings 21 are fixed inside the base layer 10. A connecting plate 14 is fixed between adjacent reinforcing plates 13. A threaded sleeve 12 is fixed inside the reinforcing plate 13. The threaded rod 40 is threadedly connected to the threaded sleeve 12. A circular through groove corresponding to the snap rings 21 is opened on the side of the reinforcing plate 13 near the keel. The threaded rod 40 passes through the circular through groove.

[0019] The minimum distance between the axis of the threaded rod 40 and the side of the base layer 10 is equal to the minimum distance between the axis of the snap ring 21 and the centerline of the connecting rod 20 parallel to its length direction.

[0020] In use, the keel is first erected, the connector is connected to the end of the connecting rod 20, the connecting block 22 is embedded into the end of the connecting rod 20, and then the end of the connecting rod 20 is embedded into the sleeve 31. The bolt is passed through the through hole on the end of the connecting rod 20 and the round hole on the fitting groove 33, and then the bolt is fixed in the connecting block 22. The end of the bolt is fitted into the through hole at the end of the connecting rod 20, thereby connecting and fixing the connecting rod 20 to the connector.

[0021] After the keel is erected, align the fireproof board with the keel, align the connecting pin with the snap ring 21 on the connecting rod 20, press the fireproof board against the keel, insert the connecting pin into the snap ring 21, and after the limiting head 42 passes through the snap ring 21, the snap rod 43 is embedded in the snap ring 21, thereby connecting and fixing the connecting pin with the snap ring 21. In this way, the fireproof board can be quickly and firmly installed on the keel.

[0022] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A keel for installing fireproof boards, characterized in that, Includes multiple connectors and multiple connecting rods (20); The connector is used to connect multiple connecting rods (20) to form a grid-like keel. The connector includes a main body (30) and four sleeves (31) fixed on the outer periphery of the main body (30). The four sleeves (31) and the main body (30) form a "+" shape. The two ends of the connecting rod (20) are detachably connected to the sleeves (31) on the two adjacent connectors. The connecting rod (20) is fixed with several snap rings (21) evenly distributed along its length. The snap rings (21) are annular and have gaps parallel to the axis. The snap rings (21) are fixedly connected to the fireproof board by connecting pins. The connecting pins include threaded rods (40) and snap rods (43). The snap rods (43) can be fitted into the snap rings (21). The snap rods (43) have limiting heads (42) and limiting rings (41) fixed at both ends. The diameters of the limiting heads (42) and limiting rings (41) are larger than the inner diameter of the snap rings (21). The end of the limiting head (42) away from the snap rod (43) is frustoconical and has a diameter smaller than the inner diameter of the snap rings (21). The threaded rods (40) are fixed on the end face of the limiting rings (41) away from the limiting head (42). The threaded rods (40) are detachably connected to the fireproof board.

2. The keel for installing fireproof boards according to claim 1, characterized in that, Multiple snap rings (21) are evenly arranged on both sides of the connecting rod (20), and the axis of the snap rings (21) is perpendicular to the fireproof board.

3. The keel for installing fireproof boards according to claim 1, characterized in that, The sleeve (31) has a recessed groove (33) on the end face away from the main body (30), and the end of the connecting rod (20) is embedded in the groove (33).

4. The keel for installing fireproof boards according to claim 3, characterized in that, The connecting rod (20) is hollow inside and open at both ends. The end of the connecting rod (20) has a through hole. The side wall of the fitting groove (33) has a round hole corresponding to the through hole. The end of the connecting rod (20) is fitted with a connecting block (22). The connecting block (22) is threaded with a bolt that passes through the round hole and the through hole.

5. A fireproof board, installed on the keel according to any one of claims 1-4, characterized in that, The fireproof board is installed on the keel by means of the connecting pin, and includes a base layer (10) and a surface layer (11) fixed on its two side surfaces. The base layer (10) is fixed with a plurality of reinforcing plates (13) corresponding to the snap rings (21). A connecting plate (14) is fixed between adjacent reinforcing plates (13). A threaded sleeve (12) is fixed inside the reinforcing plate (13). The threaded rod (40) is threadedly connected to the threaded sleeve (12). A circular through groove corresponding to the snap rings (21) is opened on the side of the reinforcing plate (13) near the keel. The threaded rod (40) passes through the circular through groove.

6. A fireproof board according to claim 5, characterized in that, The minimum distance between the axis of the threaded rod (40) and the side of the base layer (10) is equal to the minimum distance between the axis of the snap ring (21) and the centerline of the connecting rod (20) parallel to its length direction.