Prefabricated energy-saving resettlement house roof module
By using an innovative connection design between the steel frame and the locking steel plate, combined with embedded steel bars and concrete pouring, the problem of insufficient connection strength of prefabricated roof modules was solved, the crack resistance of the connection nodes and the durability of the overall structure were improved, and the construction process was simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LIXIN MINGDA CONSTR SURVEY & DESIGN CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-21
Smart Images

Figure CN224532011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof module technology, and in particular to a prefabricated, energy-saving roof module for resettlement housing. Background Technology
[0002] Prefabricated, energy-efficient roof modules for resettlement housing are core components of modern modular architecture, primarily used for the rapid construction of roof systems for temporary or permanent resettlement housing. These modules are manufactured in factories, integrating insulation, waterproofing, and structural layers into a single unit, featuring standardization, lightweight construction, and energy efficiency. Reinforcing bars are pre-embedded on both sides of the module, which is then assembled on-site and reinforced with concrete to form a unified structure. This ensures construction efficiency while meeting the basic functional requirements of waterproofing, insulation, and load-bearing capacity. These roof modules are particularly suitable for scenarios requiring rapid construction, such as post-disaster reconstruction and temporary resettlement, significantly shortening the construction cycle and reducing overall construction costs. Furthermore, their energy-saving design significantly improves the building's thermal performance.
[0003] Currently, prefabricated roof modules exhibit significant connection strength issues in practical applications. Although reinforcing bars are pre-embedded at the module splicing ends, and connection nodes are formed by on-site concrete pouring, the bond performance between this post-cast concrete and the prefabricated module is often unsatisfactory. Due to limitations in on-site pouring conditions, the density and strength of the concrete cannot reach the level of the prefabricated module itself, making the connection points weak links in the structure. Under the influence of temperature stress, wind loads, and other factors, cracks easily appear at the connections, affecting the overall durability and safety of the structure. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to propose a prefabricated, energy-saving roof module for resettlement housing, in order to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0006] To achieve the above objectives, one embodiment of this utility model provides a prefabricated energy-saving resettlement housing roof module, comprising two symmetrically arranged prefabricated roof panels, a steel frame between the two prefabricated roof panels, and connecting plates cast with concrete on both sides of each prefabricated roof panel. Two adjacent connecting plates are inserted into the steel frame. Two corresponding locking steel plates are fixedly connected to the side of each prefabricated roof panel closest to the steel frame, and both locking steel plates are slidably connected to the steel frame. Locking bolts are rotatably connected to both sides of the steel frame, and the threaded portion of the locking bolts is threadedly connected to the locking steel plates. Several linearly arrayed steel reinforcement embedded parts are fixedly connected to the side of each connecting plate away from the prefabricated roof panel. Two symmetrically arranged partition steel plates are fixedly connected inside the steel frame, and the several steel reinforcement embedded parts penetrate the partition steel plates and are located inside the steel frame.
[0007] Preferably, in any of the above embodiments, two symmetrically arranged assembly slots are provided on both the left and right sides of the steel frame, the locking steel plate is slidably connected to the steel frame through the assembly slots, the threaded part of the locking bolt is located inside the assembly slot, and the length of the locking steel plate is equal to the depth of the assembly slot.
[0008] Preferably, each of the above-mentioned solutions has two symmetrically arranged threaded holes on one side, and the screw portion of the locking bolt is threadedly connected to the locking steel plate through the threaded holes.
[0009] Preferably, the inner wall of the steel frame is provided with a plurality of linearly arrayed grooves, and each of the grooves corresponds to a connecting plate.
[0010] Preferably, the top surface of the steel frame is provided with a casting groove, and the ends of the several pre-embedded steel bars away from the connecting plate are all opposite to the casting groove.
[0011] Preferably, each of the above-mentioned solutions has a plurality of linearly arrayed connecting slots through its side, and the plurality of locking steel plates are respectively located inside the plurality of connecting slots.
[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: 1. This device employs an innovative connection design between a steel frame and a locking steel plate. During operation, the connecting plates of two precast roof panels are first inserted into the steel frame, allowing the locking steel plate to slide into the frame along the assembly groove. Then, the locking bolts are rotated to engage with the threaded holes in the locking steel plate, completing the initial fixation of the precast roof panels. The reinforcing steel embedded parts extend through the connecting grooves of the partition steel plate to the pouring trench area, and finally, concrete is poured into the pouring trench to form the integral structure. This design effectively solves the problem of insufficient connection strength in traditional precast modules through the rigid connection of the steel frame and the dual fixation method of concrete pouring. The sliding fit between the locking steel plate and the steel frame ensures installation accuracy, while the partition steel plate provides positioning support for the reinforcing steel embedded parts, allowing the subsequent concrete to form a stronger bond with the precast modules, significantly improving the crack resistance of the connection nodes and the durability of the overall structure.
[0013] 2. This device adopts a fully prefabricated installation method. During operation, only the prefabricated roof panel needs to be mechanically connected to the steel frame, eliminating the need for a traditional formwork system. The grooved fit between the connecting plate and the steel frame enables rapid positioning, and the threaded connection of the locking bolts provides temporary fixation. Reinforcing steel is pre-embedded in the connecting plate, extending directly into the pouring trench, eliminating the need for on-site rebar tying. This design simplifies the construction process; the steel frame serves as both a connecting component and a replacement for traditional formwork, significantly improving the installation efficiency of the roof module. Simultaneously, the pre-designed structure of the pouring trench ensures the regularity of the concrete pouring, avoiding dimensional deviations that may occur with on-site formwork, making the overall construction quality more controllable. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of the assembly of this utility model; Figure 2 This is a cross-sectional structural diagram of the assembly of this utility model; Figure 3 This is an exploded structural diagram of the assembly of this utility model; Figure 4 This is a structural schematic diagram of the prefabricated roof panel of this utility model; Figure 5 This is a structural schematic diagram of the steel frame of this utility model.
[0015] In the diagram: 1-Precast roof slab, 2-Steel frame, 3-Connecting plate, 4-Locking steel plate, 5-Locking bolt, 6-Reinforcing bar embedded part, 7-Separating steel plate, 8-Assembly groove, 9-Threaded hole, 10-Groove, 11-Pouring groove, 12-Connecting groove. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.
[0017] like Figures 1 to 5As shown, a prefabricated energy-saving resettlement housing roof module includes two symmetrically arranged prefabricated roof panels 1, with a steel frame 2 between them. Each prefabricated roof panel 1 has a connecting plate 3 cast in concrete on both its left and right sides. Two adjacent connecting plates 3 are inserted into the steel frame 2. Two corresponding locking steel plates 4 are fixedly connected to the side of the prefabricated roof panel 1 closest to the steel frame 2. Both locking steel plates 4 are slidably connected to the steel frame 2. Locking bolts 5 are rotatably connected to the front and rear sides of the steel frame 2. The threaded part of the locking bolt 5 is threadedly connected to the locking steel plate 4. Several linearly arrayed steel reinforcement embedded parts 6 are fixedly connected to the side of each connecting plate 3 away from the prefabricated roof panel 1. Two symmetrically arranged partition steel plates 7 are fixedly connected inside the steel frame 2. The several steel reinforcement embedded parts 6 penetrate the partition steel plates 7 and are located inside the steel frame 2.
[0018] As an optional technical solution of this utility model, two symmetrically arranged assembly slots 8 are provided on both the left and right sides of the steel frame 2. The locking steel plate 4 is slidably connected to the steel frame 2 through the assembly slots 8. The threaded part of the locking bolt 5 is located inside the assembly slot 8. The length of the locking steel plate 4 is equal to the depth of the assembly slot 8. By setting the assembly slots 8 and the locking steel plate 4 in a slidable connection structure on the steel frame 2, the rapid positioning and installation of the prefabricated roof panel 1 is realized. This design not only ensures the connection accuracy but also simplifies the assembly process, making modular construction more efficient and convenient. The equal length design of the locking steel plate 4 and the assembly slot 8 ensures the uniformity of the force at the connection point.
[0019] As an optional technical solution of this utility model, two symmetrically arranged threaded holes 9 are provided on one side of each locking steel plate 4. The screw part of the locking bolt 5 is threadedly connected to the locking steel plate 4 through the threaded holes 9. The structure of the locking steel plate 4 with threaded holes 9 and locking bolt 5 provides a reliable mechanical connection method. This threaded connection is not only convenient for on-site operators to tighten quickly, but also allows the connection rigidity to be controlled by adjusting the tightness of the bolt, adapting to different working conditions.
[0020] As an optional technical solution of this utility model, the inner wall of the steel frame 2 is provided with a number of linearly arrayed grooves 10, and the grooves 10 correspond to the connecting plate 3. By designing the grooves 10 on the inner wall of the steel frame 2 to correspond to the connecting plate 3, a precise guiding benchmark is provided for the assembly of prefabricated components. This structure not only ensures the accurate positioning of the connecting plate 3, but also prevents concrete from seeping into the connection interface during the pouring process and affecting the assembly accuracy.
[0021] As an optional technical solution of this utility model, a pouring groove 11 is provided on the top surface of the steel frame 2, and the ends of several steel bar embedded parts 6 away from the connecting plate 3 are all corresponding to the pouring groove 11. By setting the pouring groove 11 on the top surface of the steel frame 2 and the corresponding layout of the steel bar embedded parts 6, the forming quality of the post-poured concrete is optimized. This design not only provides a regular forming space for concrete pouring, but also ensures that the steel bar embedded parts 6 and the post-poured concrete form a reliable anchoring connection.
[0022] As an optional technical solution of this utility model, several linear array of connecting slots 12 are opened through the side of each dividing steel plate 7, and several locking steel plates 4 are respectively located inside several connecting slots 12. By opening connecting slots 12 in the dividing steel plate 7 to accommodate the locking steel plates 4, the internal space of the steel frame 2 is reasonably partitioned. This design not only ensures the normal working space of the locking mechanism, but also maintains the overall rigidity of the steel frame 2, making the load transfer more reasonable and effective.
[0023] A prefabricated, energy-saving roof module for resettlement housing works on the following principle: 1): During operation, first insert the connecting plate 3 of the two prefabricated roof panels 1 into the steel frame 2, so that the locking steel plate 4 slides into the steel frame 2 along the assembly groove 8.
[0024] 2): Then rotate the locking bolt 5 to engage with the threaded hole 9 of the locking steel plate 4, completing the initial fixing of the precast roof slab 1. The reinforcing bar embedded part 6 extends through the connecting groove 11 of the partition steel plate 7 to the area of the casting groove 11.
[0025] 3) Concrete is poured into the casting groove 11 to form an integral structure. This design effectively solves the problem of insufficient connection strength of traditional precast modules through the rigid connection of the steel frame 2 and the dual fixing method of concrete pouring. The sliding fit between the locking steel plate 4 and the steel frame 2 ensures installation accuracy.
[0026] In summary, this prefabricated, energy-saving resettlement housing roof module utilizes an innovative connection design between the steel frame 2 and the locking steel plate 4. During operation, the connecting plates 3 of the two prefabricated roof panels 1 are first inserted into the steel frame 2, allowing the locking steel plate 4 to slide into the steel frame 2 along the assembly groove 8. Then, the locking bolts 5 are rotated to engage with the threaded holes 9 of the locking steel plate 4, completing the initial fixing of the prefabricated roof panels 1. The reinforcing steel embedded parts 6 extend through the connecting grooves 11 of the separating steel plate 7 to the pouring groove 11 area, and finally, concrete is poured into the pouring groove 11 to form the integral structure. This design effectively solves the problem of insufficient connection strength in traditional prefabricated modules through the rigid connection of the steel frame 2 and the dual fixing method of concrete pouring. The sliding fit between the locking steel plate 4 and the steel frame 2 ensures installation accuracy, while the separating steel plate 7 provides positioning support for the embedded steel reinforcement 6, enabling the post-cast concrete to form a stronger bond with the precast module. This significantly improves the crack resistance of the connection nodes and the overall structural durability. The fully prefabricated installation method only requires mechanical connection between the precast roof panel 1 and the steel frame 2, eliminating the need for a traditional formwork system. The groove 10 of the connecting plate 3 and the steel frame 2 facilitates rapid positioning, and the threaded connection of the locking bolt 5 provides temporary fixation. The embedded steel reinforcement 6 is pre-embedded in the connecting plate 3, extending directly into the pouring trench 11, eliminating the need for on-site steel reinforcement tying. This design simplifies the construction process; the steel frame 2 serves as both a connecting component and a replacement for traditional formwork, significantly improving the installation efficiency of the roof module. Simultaneously, the pre-designed structure of the pouring trench 11 ensures the regularity of the concrete pouring, avoiding dimensional deviations that may occur with on-site formwork, making the overall construction quality more controllable.
Claims
1. A prefabricated, energy-saving roof module for resettlement housing, characterized in that: The system includes two symmetrically arranged precast roof panels (1), with a steel frame (2) between the two precast roof panels (1). Each precast roof panel (1) has a connecting plate (3) cast in concrete on both its left and right sides. Two adjacent connecting plates (3) are inserted into the steel frame (2). The side of the precast roof panel (1) closest to the steel frame (2) is fixedly connected to two corresponding locking steel plates (4). The two locking steel plates (4) are slidably connected to the steel frame (2). The front and rear sides of the steel frame (2) are rotatably connected to locking bolts (5). The threaded part of the locking bolt (5) is threadedly connected to the locking steel plate (4). Each connecting plate (3) is fixedly connected to a number of linearly arrayed steel reinforcement embedded parts (6) on the side away from the precast roof panel (1). The inside of the steel frame (2) is fixedly connected to two symmetrically arranged partition steel plates (7). The number of steel reinforcement embedded parts (6) penetrate the partition steel plates (7) and are located inside the steel frame (2).
2. The prefabricated energy-saving resettlement housing roof module according to claim 1, characterized in that: The steel frame (2) has two symmetrically arranged assembly slots (8) on both the left and right sides. The locking steel plate (4) is slidably connected to the steel frame (2) through the assembly slots (8). The screw part of the locking bolt (5) is located inside the assembly slot (8). The length of the locking steel plate (4) is equal to the depth of the assembly slot (8).
3. A prefabricated, energy-saving resettlement housing roof module according to claim 2, characterized in that: Each of the locking steel plates (4) has two symmetrically arranged threaded holes (9) on one side, and the screw part of the locking bolt (5) is threadedly connected to the locking steel plate (4) through the threaded holes (9).
4. A prefabricated, energy-saving resettlement housing roof module according to claim 3, characterized in that: The inner wall of the steel frame (2) is provided with a number of linearly arrayed grooves (10), and each of the grooves (10) corresponds to the connecting plate (3).
5. A prefabricated, energy-saving resettlement housing roof module according to claim 4, characterized in that: The top surface of the steel frame (2) is provided with a casting groove (11), and the ends of several steel bar embedded parts (6) away from the connecting plate (3) are all opposite to the casting groove (11).
6. A prefabricated, energy-saving resettlement housing roof module according to claim 5, characterized in that: Each of the partition steel plates (7) has a plurality of linear array of connecting slots (12) through its side, and the plurality of locking steel plates (4) are respectively located inside the plurality of connecting slots (12).