Plugging structure for partition wall of fireproof partition of roof net rack

By using a composite system of inorganic fireproof cloth and fireproof rock wool, combined with the dynamic partitioning function of fire doors, the problems of low construction efficiency and high material cost of traditional fire-blocking methods in large-span space frame structures are solved, achieving efficient fire-resistant partitioning and maintenance access connectivity.

CN224133953UActive Publication Date: 2026-04-17SCEGC NO 5 CONSTRUCTION ENGINEERING GROUP COMPANYLTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SCEGC NO 5 CONSTRUCTION ENGINEERING GROUP COMPANYLTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In large-span space frame structures, traditional fireproofing methods are difficult to adapt to the structural characteristics of the roof space frame with its three-dimensional interlaced members, and they also have low construction efficiency, high material costs, and cannot reliably isolate maintenance access.

Method used

A composite system of inorganic fireproof cloth and fireproof rock wool is adopted, combined with the dynamic separation function of fire doors. Fireproof sealing components that do not require prefabrication are attached to the surface of the roof grid diagonal rods to achieve sealing and fire-resistant partitioning. The dynamic separation function of fire doors ensures the connectivity of passages under normal circumstances and achieves reliable isolation in case of fire.

Benefits of technology

It improved construction efficiency, reduced material costs, enhanced fire resistance, and achieved reliable isolation of fire compartments and connectivity of maintenance access routes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a roof net rack fireproof partition wall blocking structure which comprises a fireproof door assembly and a fireproof blocking assembly. The fireproof door assembly comprises a door opening steel framework and a fireproof door. The fireproof blocking assembly comprises two pieces of inorganic fireproof cloth symmetrically arranged on the two sides of the fireproof door and fireproof rock wool arranged between the two pieces of inorganic fireproof cloth in a filling mode. The inorganic fireproof cloth and the fireproof rock wool are combined and can be attached to the surfaces of the inclined rods of the roof net rack, the roof net rack three-dimensional rod piece staggered structure can be adapted without dismantling or adjusting the original structure, the blocking purpose is achieved, the construction efficiency is improved, the blocking efficiency is better than that of a traditional fireproof plate or a traditional fireproof bag, and the fireproof performance is effectively improved; the fireproof plugging assembly of the composite system does not need to be prefabricated in advance, so that the material cost is reduced; the dynamic separation function of the fireproof door is combined, the connectivity of an overhauling channel at ordinary times is ensured, and reliable isolation of fireproof subareas is achieved through the synergistic effect of door body closing and blocking materials in a fire disaster.
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Description

Technical Field

[0001] This utility model belongs to the field of prefabricated roof building technology, and in particular relates to a roof grid fireproof partition wall sealing structure. Background Technology

[0002] In large-span space frame structures, mechanical and electrical equipment pipelines are arranged within the roof space frame, and maintenance walkways are provided to improve space utilization efficiency. Due to functional requirements, the space below the space frame is a large, column-free open space, and in some areas, the height difference between the space frame and the lower structure is significant. Therefore, it is impossible to provide independent entrances and exits for each fire compartment, resulting in some walkways needing to pass through fire compartment walls. In traditional buildings, maintenance walkways are often located in non-fire-separated areas, or the problem of passage is avoided by setting up separate fire compartments. However, if the roof space frame structure is complex (with numerous diagonal braces forming a three-dimensional space between upper and lower levels), conventional fireproofing methods (such as fireproof boards and fireproof bags) are difficult to adapt to the structural characteristics of three-dimensional intersecting members. Furthermore, to save construction time, prefabricated fireproof partitions are often used, which increases material costs. Utility Model Content

[0003] The technical problem this utility model aims to solve is to address the shortcomings of the existing technology by providing a fireproof partition wall sealing structure for roof grid structures. By combining inorganic fireproof cloth and fireproof rock wool, it can be adhered to the surface of the diagonal rods of the roof grid structure without dismantling or adjusting the original structure. It can adapt to the three-dimensional interlaced structure of the roof grid structure to achieve the purpose of sealing, improving construction efficiency. Moreover, the sealing efficiency of the composite system of inorganic fireproof cloth and fireproof rock wool is better than that of traditional fireproof boards or fireproof bags, effectively improving fire resistance. Furthermore, the fireproof sealing components of the composite system do not need to be prefabricated, reducing material costs. Combined with the dynamic partitioning function of fire doors, it ensures the connectivity of maintenance passages during normal times, and in the event of a fire, the door closure and the sealing material work together to achieve reliable isolation of fire compartments.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a roof grid fireproof partition wall sealing structure, characterized in that: it includes a fireproof door assembly installed in the fireproof partition wall and a fireproof sealing assembly installed between the fireproof partition wall and the fireproof door assembly;

[0005] The fire door assembly includes a door opening steel frame vertically installed in the fire-resistant partition wall and a fire door hinged to the door opening steel frame. The door opening steel frame includes a vertical support frame vertically installed in the fire-resistant partition wall. The top of the vertical support frame is connected to the fire-resistant partition wall through a connecting component, and the bottom of the vertical support frame extends into the ground beam of the fire-resistant partition wall.

[0006] The fireproof sealing assembly includes two inorganic fireproof cloths symmetrically arranged on both sides of the fire door and fireproof rock wool filled between the two inorganic fireproof cloths and arranged between the fireproof partition wall and the fire door assembly; gypsum board is provided on the outer surface of the inorganic fireproof cloth, and the outer surface of the gypsum board is flush with the outer surface of the fire door.

[0007] The above-mentioned roof grid fire-resistant partition wall sealing structure is characterized in that: the vertical support frame includes two vertically arranged vertical support units, the two vertical support units are symmetrically arranged inside the fire-resistant partition wall, and multiple horizontal support rods are arranged horizontally between the two vertical support units; the vertical support unit and the horizontal support rods are integrally formed; the vertical support unit includes two vertically arranged vertical support rods and a horizontal support rod arranged horizontally between the two vertical support rods; the vertical support rods and the horizontal support rods are integrally formed; the top of the vertical support rod is connected to the fire-resistant partition wall through a connecting component, and the bottom of the vertical support rod extends into the ground beam of the fire-resistant partition wall.

[0008] The above-mentioned roof grid fireproof partition wall sealing structure is characterized in that: the connecting component includes a connecting plate horizontally arranged on the top of the vertical support rod, and the connecting plate is connected to the fireproof partition wall by connecting bolts.

[0009] The above-mentioned roof grid fireproof partition wall sealing structure is characterized in that: the inorganic fireproof cloth is a door-shaped structure, the outer side of the inorganic fireproof cloth is fixed by an outer fireproof strip, and the inner side of the inorganic fireproof cloth is fixed by an inner fireproof strip; the inner fireproof strip covers the outer side of the door opening steel frame, the outer fireproof strip is set outside the inner fireproof strip, both the inner and outer fireproof strips are door-shaped structures, and the inorganic fireproof cloth is connected to the inner and outer fireproof strips respectively by nails.

[0010] This utility model has the following advantages compared with the prior art:

[0011] 1. This utility model combines inorganic fireproof cloth and fireproof rock wool, which can be attached to the surface of the diagonal rods of the roof grid without removing or adjusting the original structure. It can adapt to the three-dimensional intersecting structure of the roof grid to achieve the purpose of sealing, thus improving construction efficiency. Moreover, the sealing efficiency of the composite system of inorganic fireproof cloth and fireproof rock wool is better than that of traditional fireproof boards or fireproof bags, effectively improving fire resistance. Furthermore, the fireproof sealing components of the composite system do not need to be prefabricated, reducing material costs.

[0012] 2. This utility model combines the dynamic partitioning function of fire doors to ensure the connectivity of maintenance passages during normal times, and to achieve reliable isolation of fire compartments in the event of a fire through the synergistic effect of door closure and sealing materials.

[0013] In summary, this utility model, by combining inorganic fireproof cloth and fireproof rock wool, can be adhered to the surface of the diagonal braces of the roof truss without dismantling or adjusting the original structure. It can adapt to the three-dimensional interlaced structure of the roof truss to achieve the purpose of sealing, improving construction efficiency. Moreover, the sealing efficiency of the composite system of inorganic fireproof cloth and fireproof rock wool is superior to that of traditional fireproof boards or fireproof bags, effectively improving fire resistance. Furthermore, the fireproof sealing components of the composite system do not need to be prefabricated, reducing material costs. Combined with the dynamic partitioning function of the fire door, it ensures the connectivity of the maintenance passage during normal times, and in the event of a fire, the door closure and the sealing material work together to achieve reliable isolation of fire compartments.

[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the inorganic fireproof cloth and the fireproof partition wall of this utility model.

[0017] Figure 3 This is a schematic diagram showing the connection relationship between the fire door assembly and the fire-resistant partition wall of this utility model.

[0018] Figure 4 This is a schematic diagram of the vertical support frame of this utility model.

[0019] Figure 5 This is a schematic diagram showing the connection relationship between the fire door assembly, the inner fireproof strip, and the outer fireproof strip of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1—Fire-resistant partition wall; 2—Steel frame for doorway; 3—Fire door;

[0022] 4—Vertical support frame; 5—Ground beam; 6—Connecting plate;

[0023] 7—Connecting bolt; 8—Vertical support rod; 9—Horizontal support rod;

[0024] 10—Horizontal brace; 11—Gypsum board; 12—Inner fireproof strip;

[0025] 13—Outer fireproof strip; 14—Inorganic fireproof cloth; 15—Fire nail. Detailed Implementation

[0026] like Figures 1 to 5 As shown, this utility model includes a fire door assembly installed within a fire-resistant partition wall 1 and a fireproof sealing assembly installed between the fire-resistant partition wall 1 and the fire door assembly;

[0027] The fire door assembly includes a door opening steel frame 2 vertically installed in the fire compartment wall 1 and a fire door 3 hinged to the door opening steel frame 2. The door opening steel frame 2 includes a vertical support frame 4 vertically installed in the fire compartment wall 1. The top of the vertical support frame 4 is connected to the fire compartment wall 1 through a connecting component, and the bottom of the vertical support frame 4 extends into the ground beam 5 of the fire compartment wall 1.

[0028] The fireproof sealing assembly includes two inorganic fireproof cloths 14 symmetrically arranged on both sides of the fire door 3 and fireproof rock wool filled between the two inorganic fireproof cloths 14 and arranged between the fireproof partition wall 1 and the fire door assembly; gypsum board 11 is provided on the outer surface of the inorganic fireproof cloth 14, and the outer surface of the gypsum board 11 is flush with the outer surface of the fire door 3.

[0029] In practical use, by combining inorganic fireproof cloth 14 and fireproof rock wool, it can be attached to the surface of the diagonal rods of the roof grid without removing or adjusting the original structure. It can adapt to the three-dimensional intersecting structure of the roof grid and achieve the purpose of sealing, thus improving construction efficiency. Moreover, the sealing efficiency of the composite system of inorganic fireproof cloth 14 and fireproof rock wool is better than that of traditional fireproof boards or fireproof bags, effectively improving fire resistance. Furthermore, the fireproof sealing components of the composite system do not need to be prefabricated, reducing material costs.

[0030] In addition, combined with the dynamic partitioning function of fire door 3, it ensures the connectivity of the maintenance passage during normal times, and achieves reliable isolation of fire compartments in the event of a fire through the synergistic effect of door closure and sealing materials.

[0031] like Figure 3 and Figure 4 As shown, in this embodiment, the vertical support frame 4 includes two vertically arranged vertical support units, which are symmetrically arranged within the fire-resistant partition wall 1. Multiple horizontal support rods 10 are horizontally arranged between the two vertical support units. The vertical support units and horizontal support rods 10 are integrally formed. Each vertical support unit includes two vertically arranged vertical support rods 8 and a horizontal support rod 9 horizontally arranged between the two vertical support rods 8. The vertical support rods 8 and the horizontal support rods 9 are integrally formed. The top of the vertical support rod 8 is connected to the fire-resistant partition wall 1 via a connecting assembly, and the bottom of the vertical support rod 8 extends into the ground beam 5 of the fire-resistant partition wall 1.

[0032] like Figure 5 As shown, in this embodiment, the connecting assembly includes a connecting plate 6 horizontally disposed at the top of the vertical support rod 8, and the connecting plate 6 is connected to the fireproof partition wall 1 by connecting bolts 7.

[0033] like Figure 2 and Figure 5As shown, in this embodiment, the inorganic fireproof cloth 14 has a door-shaped structure. The outer side of the inorganic fireproof cloth 14 is fixed by an outer fireproof strip 13, and the inner side of the inorganic fireproof cloth 14 is fixed by an inner fireproof strip 12. The inner fireproof strip 12 covers the outer side of the doorway steel frame 2, and the outer fireproof strip 13 is set outside the inner fireproof strip 12. Both the inner fireproof strip 12 and the outer fireproof strip 13 have a door-shaped structure. The inorganic fireproof cloth 14 is connected to the inner fireproof strip 12 and the outer fireproof strip 13 respectively by nails 15.

[0034] like Figure 5 As shown, the gate-shaped structure formed by the vertical support rod 8 and the horizontal support rod 9 has the same structural dimensions as the inner fireproof strip 12.

[0035] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A roof grid fireproof partition wall sealing structure, characterized in that: Includes a fire door assembly installed within a fire-resistant partition wall (1) and a fire-resistant sealing assembly installed between the fire-resistant partition wall (1) and the fire door assembly; The fire door assembly includes a door opening steel frame (2) vertically installed in the fire compartment wall (1) and a fire door (3) hinged to the door opening steel frame (2). The door opening steel frame (2) includes a vertical support frame (4) vertically installed in the fire compartment wall (1). The top of the vertical support frame (4) is connected to the fire compartment wall (1) through a connecting component, and the bottom of the vertical support frame (4) extends into the ground beam (5) of the fire compartment wall (1). The fireproof sealing assembly includes two inorganic fireproof cloths (14) symmetrically arranged on both sides of the fire door (3) and fireproof rock wool filled between the two inorganic fireproof cloths (14) and arranged between the fireproof partition wall (1) and the fire door assembly; gypsum board (11) is provided on the outer surface of the inorganic fireproof cloth (14), and the outer surface of the gypsum board (11) is flush with the outer surface of the fire door (3).

2. The fireproof partition wall plugging structure of roof grid according to claim 1, characterized in that: The vertical support frame (4) includes two vertically arranged vertical support units, which are symmetrically arranged in the fireproof partition wall (1). Multiple horizontal support rods (10) are arranged horizontally between the two vertical support units. The vertical support unit and the horizontal support rod (10) are integrally formed. The vertical support unit includes two vertically arranged vertical support rods (8) and a horizontal support rod (9) arranged horizontally between the two vertical support rods (8). The vertical support rod (8) and the horizontal support rod (9) are integrally formed. The top of the vertical support rod (8) is connected to the fireproof partition wall (1) through a connecting component. The bottom of the vertical support rod (8) extends into the ground beam (5) of the fireproof partition wall (1).

3. The fire compartmentation wall plugging structure of claim 2, wherein: The connecting assembly includes a connecting plate (6) horizontally disposed on the top of the vertical support rod (8), and the connecting plate (6) is connected to the fire-resistant partition wall (1) by connecting bolts (7).

4. The fireproof partition wall plugging structure of roof grid according to claim 1, characterized in that: The inorganic fireproof cloth (14) has a door-shaped structure. The outer side of the inorganic fireproof cloth (14) is fixed by an outer fireproof strip (13), and the inner side of the inorganic fireproof cloth (14) is fixed by an inner fireproof strip (12). The inner fireproof strip (12) covers the outer side of the doorway steel frame (2). The outer fireproof strip (13) is set on the outer side of the inner fireproof strip (12). Both the inner fireproof strip (12) and the outer fireproof strip (13) have a door-shaped structure. The inorganic fireproof cloth (14) is connected to the inner fireproof strip (12) and the outer fireproof strip (13) respectively by nails (15).