A reinforced fabricated building structure

Abstract

The application relates to the field of building thermal insulation energy-saving cement products, in particular to a reinforced fabricated building structure. The reinforced fabricated building structure comprises a connecting column, a wallboard, a fixing piece, a fixing groove, a rotating shaft, a screw rod, a first bevel gear, a second bevel gear, a plug rod, a plug hole and a limiting hole and the like structures. The application can avoid the defect that traditional bolt connection is prone to loosening due to vibration, can also make the stress of a node evenly dispersed to three, significantly improves the shearing and tensile capacity of the structure, ensures that the node will not be separated or broken under extreme load, and reduces the safety hidden danger.

Description

Technical Field

[0001] This invention relates to the field of cement products such as building insulation and energy saving, and particularly to a reinforced prefabricated building structure. Background Technology

[0002] With the acceleration of industrialization in the construction industry, prefabricated buildings are increasingly widely used in residential, public, and industrial buildings due to their significant advantages such as high construction efficiency, environmental friendliness, and controllable quality. Compared to traditional cast-in-place concrete structures, prefabricated buildings significantly reduce on-site wet work and shorten the construction cycle by using factory-prefabricated components and on-site assembly. This also reduces waste of building materials and environmental pollution such as construction dust and noise, aligning with the current trend of "low-carbon transformation" in the construction industry.

[0003] Traditional prefabricated structures rely on grouting sleeves, welding, or bolt connections. These connection points are prone to stress concentration under dynamic loads (such as earthquakes and strong winds), becoming the first parts to fail and posing safety hazards. Summary of the Invention

[0004] The present invention aims to provide a reinforced prefabricated building structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A reinforced prefabricated building structure includes connecting columns and wall panels, which are detachably connected. The wall panels are connected to fasteners. The connecting columns have fixing grooves, and the fasteners cooperate with the fixing grooves. The connecting columns are rotatably connected to a shaft and a screw. The shaft and screw are respectively connected to a first bevel gear and a second bevel gear, which mesh with each other. The screw is threadedly connected to a plug rod, which is slidably connected to the connecting columns. The fasteners have insertion holes. The wall panels have limiting holes, and the plug rod cooperates with both the insertion holes and the limiting holes. The connecting columns are hinged to a cover plate, which cooperates with the connecting columns via a locking assembly. The shaft is slidably connected to a handle, which cooperates with the cover plate. The shaft is connected to a cross plate, and the connecting columns have sliding grooves, with both the handle and the cross plate slidably connected to the grooves.

[0006] Preferably, the rotating shaft is fitted with a spring, the two ends of the spring are respectively connected to the cross plate and the handle, the rotating shaft is connected with a locking block, the handle has a locking groove, and the locking block is slidably connected to the locking groove.

[0007] Preferably, the handle has a storage groove, and an auxiliary handle is rotatably connected to the side wall of the storage groove, the auxiliary handle cooperating with the storage groove.

[0008] Preferably, the wall panel includes a cement-based surface layer, an insulation layer, and reinforcing steel bars.

[0009] Preferably, the wall panel has a groove, and the connecting column has a protrusion that engages with the groove.

[0010] Preferably, a sealing strip is connected between the contact surface of the connecting column and the wall panel, and the sealing strip is water-swellable.

[0011] Preferably, the outer wall of the insertion rod is connected to a vertical plate, the vertical plate has a sliding groove, the connecting column has a cavity, the side wall of the cavity is connected to a guide rod, and the guide rod is slidably connected to the sliding groove.

[0012] Preferably, the end of the insertion rod is rounded.

[0013] Preferably, both the fastener and the fixing groove are L-shaped.

[0014] Preferably, the latch assembly includes a lock cylinder fixed to the cover plate and a latch seat fixed to the connecting post.

[0015] The beneficial effects of this technical solution compared to existing technologies are as follows: (1) This scheme achieves modular disassembly and assembly of components by setting up detachable connections between connecting columns and wall panels, combined with the L-shaped fasteners and fixing grooves. During transportation, connecting columns and wall panels can be transported separately, reducing transportation space occupation and the risk of collision. During construction, the fasteners only need to be embedded into the fixing grooves to quickly complete the initial positioning of the two, greatly improving assembly efficiency. On the other hand, the fitting characteristics of the L-shaped structure can form a "two-way limit", effectively resisting the displacement tendency of the wall panels under horizontal thrust (such as strong wind, earthquake lateral force) or vertical pressure, providing basic stability for the connection nodes. At the same time, the detachable design facilitates the individual replacement of damaged wall panels or connecting columns in the later stage, avoiding the problem of damaging surrounding components when repairing traditional cast-in-place structures. By setting up the transmission combination of rotating shaft, screw, first bevel gear and second bevel gear, as well as the cooperation of plug rod and plug hole, limiting hole, a mechanical transmission and multi-locking node reinforcement system is constructed. When the shaft is rotated, the meshing transmission of the bevel gears converts the rotation direction into axial drive of the screw, which in turn drives the insertion rod to precisely pass through the insertion hole of the fastener and the limiting hole of the wall panel, forming a rigid connection between the connecting column, the fastener, and the wall panel. This not only avoids the defect of traditional bolted connections being prone to loosening due to vibration, but also allows the stress on the joint to be evenly distributed among the three components, significantly improving the structure's shear and tensile strength, ensuring that the joint will not detach or break under extreme loads, and reducing safety hazards.

[0016] (2) By setting handles, springs, blocks and slots, when the cover is closed, the handle is pressed down and the spring is compressed, so that it is completely stored in the connecting column, ensuring a flat appearance and preventing accidental contact; when the cover is opened, the spring's restoring force automatically pops the handle up to the ready-to-operate position, and the operator can directly apply force to turn it, realizing a seamless transition from "concealed storage" to "ready-to-operate", which greatly improves the convenience, safety and user experience of operation.

[0017] (3) Multiple layers of protection are formed by setting protrusions and grooves, as well as water-swellable sealing strips. The engagement of the protrusions and grooves provides initial shear resistance and limiting, and can effectively guide the wall panel into precise position. The water-swellable sealing strip, on the basis of conventional sealing, can automatically expand when exposed to water, tightly fill the joint, dynamically enhance the waterproof sealing performance of the joint, and solve the hidden danger of wall leakage.

[0018] (4) By setting up a cover plate and key lock assembly, the core transmission and locking mechanism are enclosed inside the connecting column. This not only makes the building appearance neater and more beautiful, but more importantly, it can prevent unauthorized personnel from operating or damaging it at will, realizing the safe management of key structural nodes, which is particularly suitable for building scenarios with requirements for public safety.

[0019] (5) By setting up a composite structure of cement-based surface layer, insulation layer and reinforcing steel bars for the wall panel, the strength and function of the wall panel are improved. The cement-based surface layer provides the wall panel with surface hardness and impact resistance, resisting the wear and tear of the wall panel by the external environment; the internal reinforcing steel bars can enhance the overall bending and crack resistance of the wall panel, and prevent the wall panel from cracking due to uneven stress during transportation or installation; the middle insulation layer can block the heat transfer between indoor and outdoor, improve the thermal insulation effect of the building, reduce the energy consumption of air conditioning and heating in the later stage, meet the development needs of green building, and make the wall panel have both structural safety and user comfort. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front cross-sectional view of the present invention; Figure 3 This is a left-side cross-sectional view of the present invention; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 for Figure 3 Enlarged view of point B; Reference numerals: 1. Wall panel; 2. Connecting column; 3. Cover plate; 4. Fixing component; 5. Insertion hole; 6. Fixing groove; 7. Slide groove; 8. Rotating shaft; 9. Horizontal plate; 10. Spring; 11. Locking block; 12. Sealing strip; 13. Locking groove; 14. Auxiliary rotating handle; 15. Storage groove; 16. Handle; 17. First bevel gear; 18. Second bevel gear; 19. Screw; 20. Cavity; 21. Guide rod; 22. Vertical plate; 23. Inserting rod; 24. Limiting hole; 25. Sliding groove; 26. Groove; 27. Protrusion. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-5The diagram shows a reinforced prefabricated building structure, including a connecting column 2 and a wall panel 1. The connecting column 2 is detachably connected to the corresponding wall panel 1 on both sides. Several symmetrical fasteners 4 are connected to both sides of the wall panel 1. The connecting column 2 has a fixing groove 6 corresponding to the fixing frame. Each fastener 4 cooperates with the corresponding fixing groove 6. The inner wall of the connecting column 2 is rotatably connected to a rotating shaft 8 and several screws 19. The rotating shaft 8 is connected to several first bevel gears 17. Each screw 19 is connected to a second bevel gear 18. The two ends of each first bevel gear 17 correspond to every two second bevel gears 18. The two ends of each first bevel gear 17 mesh with the adjacent second bevel gear 18. This meshing design allows the rotational motion of the rotating shaft 8 to be synchronously transmitted to all screws 19, ensuring the consistency of the movement of multiple screws 19. When the rotating shaft 8 rotates, it drives all the screws 19 to rotate synchronously through the meshing transmission of the bevel gear. Since the screws 19 are threadedly connected to the insert rods 23, and the insert rods 23 slide in cooperation with the guide rods 21 in the cavity 20 of the connecting column 2 through the vertical plate 22, the sliding grooves 25 opened in the vertical plate 22 slide along the guide rods 21, and the rotational motion of the screws 19 is converted into the horizontal extension and retraction motion of the insert rods 23. Each screw 19 is threadedly connected to an insert rod 23, and each insert rod 23 is slidably connected to the connecting column 2. Each fixing part 4 is provided with an insertion hole 5, and corresponding limiting holes 24 are provided on both sides of both ends of the wall panel 1. Each insert rod 23 cooperates with the corresponding insertion hole 5 and limiting hole 24. When the insert rod 23 extends, it will pass through the insertion hole 5 on the fixing part 4 and the limiting hole 24 at the end of the wall panel 1 in sequence, rigidly connecting the connecting column 2, the fixing part 4, and the wall panel 1 into a whole. When the insert rod 23 is retracted, it can be unlocked and realize the detachable function. This multi-pole 23 synchronous locking design can evenly distribute external force to multiple stress points, significantly improving the node's pull-out and shear resistance. The top ends of the connecting column 2 are hinged to cover plates 3, which engage with the connecting column 2 via locking components. When closed, these cover plates seal the top opening of the connecting column 2, protecting the internal transmission components such as the rotating shaft 8, bevel gear, and screw 19 from dust and rain corrosion, thus extending the mechanism's service life. A handle 16 is slidably connected to the top of the rotating shaft 8, engaging with the cover plate 3. A horizontal plate 9 is connected to the rotating shaft 8, and the connecting column 2 has a sliding groove 7. Both the handle 16 and the horizontal plate 9 are slidably connected to the sliding groove 7. When the cover plate 3 at the top of the connecting column 2 is closed, the handle 16 is pressed and retracted within the connecting column 2, preventing it from protruding and affecting aesthetics or causing impacts. When the cover plate 3 is opened, the elastic tension of the spring 10 pushes the handle 16 out along the sliding groove 7, allowing for quick and easy operation.

[0022] like Figure 4As shown, a spring 10 is fitted on the outer wall of the rotating shaft 8. The two ends of the spring 10 are connected to the horizontal plate 9 and the handle 16, respectively. A locking block 11 is connected to one side of the rotating shaft 8, and a locking groove 13 is provided on the handle 16. The locking block 11 and the locking groove 13 are slidably connected to ensure that the handle 16 always moves synchronously with the rotating shaft 8 during sliding and rotation, avoiding detachment or transmission failure and ensuring operational stability. A storage groove 15 is provided on the top of the handle 16. An auxiliary rotating handle 14 is rotatably connected to the side wall of the storage groove 15. The auxiliary rotating handle 14 and the storage groove 15 cooperate with each other. When not in use, it can be folded and stored in the groove to save space. When it is necessary to rotate the rotating shaft 8, unfolding the auxiliary rotating handle 14 can extend the lever arm, reduce the force required by the operator, and adapt to users with different physical strengths and complex operating scenarios.

[0023] like Figure 1 As shown, wall panel 1 comprises an outer cement-based surface layer on both sides, a middle insulation layer, and internal reinforcing steel bars. The cement-based surface layer provides surface hardness and impact resistance, resisting wear and tear from the external environment. The internal reinforcing steel bars enhance the overall bending and crack resistance of wall panel 1, preventing cracking due to uneven stress during transportation or installation. The middle insulation layer effectively blocks heat transfer between the interior and exterior, improving the building's thermal insulation effect, reducing energy consumption, and meeting green building requirements. Grooves 26 are provided on both sides of wall panel 1, and protrusions 27 are provided on both sides of connecting column 2. The protrusions 27 engage with the grooves 26. Precise engagement of the protrusions 27 and grooves 26 further enhances the shear resistance of the joint, effectively preventing relative sliding between wall panel 1 and connecting column 2 caused by external forces (such as seismic lateral forces or strong wind thrust), and strengthening the overall structural load-bearing capacity. A sealing strip 12 is connected between the mating surfaces of the connecting column 2 and the wall panel 1. The sealing strip 12 is water-swellable. When water seeps into the joint, the strip will automatically expand to fill the gap. This can prevent rainwater and moisture from entering the structure and causing steel reinforcement corrosion or insulation layer dampness, and can also enhance the sealing of the joint to improve the sound insulation effect.

[0024] like Figure 5 As shown, upright plates 22 are connected to the outer walls of both sides of the insertion rod 23. Each upright plate 22 has a sliding groove 25. A cavity 20 is formed in the connecting column 2, and two guide rods 21 are connected to the side walls of the cavity 20. The sliding grooves 25 and guide rods 21 slide in engagement, restricting the insertion rod 23 to extend and retract only in the horizontal direction. When the rotating shaft 8 rotates, it drives the screw 19 to rotate through the meshing of bevel gears. Under the sliding engagement of the sliding grooves 25 and guide rods 21, the threaded transmission converts the rotational motion into the horizontal movement of the insertion rod 23. The ends of each insertion rod 23 are rounded to ensure smooth alignment with the hole during insertion, avoiding jamming or damage to the hole wall.

[0025] like Figure 2As shown, both the fastener 4 and the fixing groove 6 are L-shaped. The horizontal and vertical mating surfaces of the L-shaped structure can simultaneously restrict the displacement of the wall panel 1 in both the horizontal and vertical directions, providing basic shear resistance for the connection node, and quickly completing the initial positioning of the wall panel 1 and the connecting column 2.

[0026] like Figure 1 As shown, the latch assembly includes a lock cylinder fixed to the cover plate 3 and a latch seat fixed to the connecting post 2. The latch assembly is prior art and will not be described in detail here.

[0027] The specific implementation process is as follows: First, align the L-shaped fasteners 4 on both sides of the wall panel 1 with the L-shaped fixing grooves 6 on the connecting column 2, so that the fasteners 4 are embedded in the fixing grooves 6. The horizontal and vertical mating surfaces of the L-shaped structure are used to complete the initial positioning. At the same time, ensure that the grooves 26 on both sides of the wall panel 1 and the protrusions 27 on both sides of the connecting column 2 are precisely engaged. The concave and convex fit further restricts the horizontal and vertical displacement of the wall panel 1 and enhances the shear resistance of the joint. At this time, the water-swellable sealing strip 12 between the mating surfaces of the connecting column 2 and the wall panel 1 is in its natural state, initially filling the joint gap.

[0028] Open the cover plate 3 at the top of the connecting post 2. Through the locking assembly, the lock cylinder on the cover plate 3 is separated from the lock tongue seat on the connecting post 2, and the hinged cover plate 3 is flipped upwards and opened. After the cover plate 3 is opened, the handle 16, which was originally pressed and retracted, pops out along the slide groove 7 of the connecting post 2 under the elastic tension of the spring 10, making it easy for the operator to grip. The sliding engagement between the locking block 11 on one side of the rotating shaft 8 and the locking groove 13 of the handle 16 ensures that the handle 16 pops out synchronously with the rotating shaft 8, preventing it from falling off. If the operator needs to hold the popped-out handle 16 with less effort, the auxiliary rotating handle 14 can be turned out from the storage groove 15 at the top of the handle 16. Turning the handle 16 will drive the rotating shaft 8 to rotate. The first bevel gear 17 on the rotating shaft 8 rotates synchronously with the rotating shaft 8. Through the meshing transmission with the adjacent second bevel gear 18, it drives all the screws 19 in the connecting post 2 to rotate synchronously. Since the screw 19 is threadedly connected to the insertion rod 23, and the upright plates 22 on both sides of the insertion rod 23 slide and engage with the guide rod 21 in the cavity 20 of the connecting column 2 through the sliding groove 25, the rotational motion of the screw 19 is converted into the horizontal extension motion of the insertion rod 23. The rounded corner design at the end of the insertion rod 23 ensures that it smoothly passes through the insertion hole 5 of the fixing member 4 and finally inserts into the limiting hole 24 at the end of the wall panel 1, rigidly locking the connecting column 2, fixing member 4, and wall panel 1 into a whole, realizing synchronous force on multiple nodes. After locking, the auxiliary handle 14 is folded back into the storage groove 15 of the handle 16, and the handle 16 is pressed to overcome the elastic force of the spring 10 and retract and reset along the sliding groove 7; then the cover plate 3 is closed, and the cover plate 3 is fixed by the lock cylinder and the lock tongue seat of the locking assembly, so that the handle 16 is stored in the connecting column 2 by the cover plate 3. At the same time, the cover plate 3 seals the top of the connecting column 2, protecting the internal transmission components from external corrosion.

[0029] To disassemble or replace wall panel 1, first open cover plate 3 using the locking assembly. Handle 16 will pop out under the action of spring 10, and the operator should hold handle 16. Rotate handle 16 in the reverse direction, causing shaft 8, bevel gear, and screw 19 to move in the opposite direction. This allows insertion rod 23 to retract horizontally under the action of threaded transmission and guide rod 21, sequentially disengaging from the limiting hole 24 of wall panel 1 and the insertion hole 5 of fastener 4, thus releasing the rigid lock of connecting column 2, fastener 4, and wall panel 1. After insertion rod 23 is fully retracted, pull wall panel 1 vertically upwards until the top of fastener 4 contacts the top wall of fixing groove 6. Then pull it horizontally outwards, causing L-shaped fastener 4 to disengage from fixing groove 6, and protrusion 27 to separate from groove 26, thus disassembling wall panel 1 from connecting column 2. This facilitates individual replacement or maintenance of damaged components. After maintenance, repeat the assembly and connection process to reposition and lock the components, restoring the overall structural performance.

[0030] When rainwater or moisture seeps into the joint between the connecting column 2 and the wall panel 1, the water-swellable sealing strip 12 between the mating surfaces will automatically expand, tightly filling the gap and preventing moisture from entering the structure, thus avoiding steel corrosion and moisture damage to the insulation layer. It also enhances the joint's sealing performance to improve sound insulation. In daily use, the external force borne by the wall panel 1 is transmitted to the connecting column 2 through the cooperation of the L-shaped fastener 4 and the fixing groove 6, and the engagement of the protrusion 27 and the groove 26. Simultaneously, the synchronous locking of multiple insertion rods 23 evenly distributes the external force to multiple stress points, ensuring stable tensile and shear resistance at the joint and coordinated load-bearing capacity of the overall structure.

[0031] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A reinforced prefabricated building structure, characterized in that: The system includes a connecting column (2) and a wall panel (1), which are detachably connected. The wall panel (1) is connected to a fixing member (4). The connecting column (2) has a fixing groove (6), and the fixing member (4) cooperates with the fixing groove (6). The connecting column (2) is rotatably connected to a rotating shaft (8) and a screw (19). The rotating shaft (8) and the screw (19) are respectively connected to a first bevel gear (17) and a second bevel gear (18), which mesh with each other. The screw (19) is threadedly connected to a plug (23), and the plug (23) is connected to the connecting column (2). The column (2) is slidably connected, the fixing part (4) is provided with a socket (5), the wall panel (1) is provided with a limiting hole (24), the plug rod (23) cooperates with the socket (5) and the limiting hole (24), the connecting column (2) is hinged to a cover plate (3), the cover plate (3) and the connecting column (2) cooperate with each other through a locking assembly, the rotating shaft (8) is slidably connected to a handle (16), the handle (16) cooperates with the cover plate (3), the rotating shaft (8) is connected to a horizontal plate (9), the connecting column (2) is provided with a sliding groove (7), the handle (16) and the horizontal plate (9) are both slidably connected to the sliding groove (7).

2. The reinforced prefabricated building structure as described in claim 1, characterized in that: The rotating shaft (8) is fitted with a spring (10), and the two ends of the spring (10) are connected to the horizontal plate (9) and the handle (16) respectively. The rotating shaft (8) is connected with a locking block (11), and the handle (16) has a locking groove (13). The locking block (11) and the locking groove (13) are slidably connected.

3. The reinforced prefabricated building structure as described in claim 1, characterized in that: The handle (16) has a storage slot (15), and an auxiliary handle (14) is rotatably connected to the side wall of the storage slot (15). The auxiliary handle (14) and the storage slot (15) cooperate with each other.

4. A reinforced prefabricated building structure as described in claim 1, characterized in that: The wall panel (1) includes a cement-based surface layer, an insulation layer, and reinforcing steel bars.

5. A reinforced prefabricated building structure as described in claim 1, characterized in that: The wall panel (1) has a groove (26), and the connecting column (2) has a protrusion (27), which engages with the groove (26).

6. A reinforced prefabricated building structure as described in claim 1, characterized in that: A sealing strip (12) is connected between the contact surface of the connecting column (2) and the wall panel (1), and the sealing strip (12) is water-swellable.

7. A reinforced prefabricated building structure as described in claim 1, characterized in that: The outer wall of the insertion rod (23) is connected to a vertical plate (22), the vertical plate (22) is provided with a sliding groove (25), the connecting column (2) is provided with a cavity (20), the side wall of the cavity (20) is connected to a guide rod (21), and the guide rod (21) is slidably connected to the sliding groove (25).

8. A reinforced prefabricated building structure as described in claim 1, characterized in that: The end of the insertion rod (23) is rounded.

9. A reinforced prefabricated building structure as described in claim 1, characterized in that: Both the fastener (4) and the fixing groove (6) are L-shaped.

10. A reinforced prefabricated building structure as described in claim 1, characterized in that: The latch assembly includes a lock cylinder fixed to the cover plate (3) and a latch seat fixed to the connecting post (2).

Images