Fabricated building light top span beam structure

Abstract

The utility model discloses an assembly type building light top span beam structure, and particularly relates to the technical field of assembly type buildings, the assembly type building light top span beam structure comprises a first beam body and a second beam body, the first beam body is located on the left side of the second beam body, and a positioning hole is formed in one side of the first beam body; the upper side of the second beam body is fixedly provided with a positioning rod through a welding process, the size of the positioning rod is matched with the size of the positioning hole, during transportation, due to the fact that light materials are adopted and the structure is optimized, the weight of the span beam is greatly reduced, large-scale high-load-bearing transportation equipment and common vehicles are not needed, cost is reduced, and the requirement for route bearing is lowered; route selection is more flexible, complex terrain traffic can be adapted, transportation convenience is improved, during installation, the light span beam has more obvious advantages, large hoisting equipment, small equipment or manual assistance are not needed, operation difficulty is lowered, dependence on personnel skills and command ability is reduced, accident risks are reduced, and project cost is saved.

Description

A lightweight roof beam structure for prefabricated buildings Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and more specifically, to a lightweight roof beam structure for prefabricated buildings. Background Technology

[0002] Prefabricated construction means moving a large number of on-site construction operations from traditional construction methods to factories. The components and accessories required for the building are processed and manufactured in the factory, then transported to the construction site, and assembled on-site with the help of reliable connection methods to build the building.

[0003] A search revealed that patent publication number CN210530127U discloses a top span beam structure for prefabricated buildings, including a beam body. One end of the beam body has a limit seat welded to it via a welding plate, and the other end has a positioning seat welded to it via a welding plate. The structure includes a positioning seat, set screws, a fixing plate, and a ladder. This allows the positioning seat to be easily engaged with the top side of the prefabricated building via a groove at its bottom. The ladder facilitates squatting and sitting for construction workers during assembly, improving installation safety. Rolling wheels at the connection between the guide plate and the limit groove move the guide plate towards the limit seat until it connects with the prefabricated building. At this point, positioning screws are screwed into the positioning holes inside the limit seat, fixing and limiting the prefabricated building. This adapts to walls of varying thicknesses and allows for quick positioning and installation of the guide plate using the rolling wheels. The inventors discovered the following problems with the existing technology during the development of this invention:

[0004] In existing construction processes, the transportation of large, high-load-bearing equipment is often hampered by the fact that ordinary transport vehicles cannot meet the demands due to their weight. This results in stringent requirements for route load-bearing capacity, high costs, limited route selection, high demands on personnel expertise, and significant safety hazards.

[0005] Therefore, a lightweight roof beam structure for prefabricated buildings is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lightweight roof beam structure for prefabricated buildings to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lightweight top span beam structure for prefabricated buildings, comprising a first beam and a second beam. The first beam is located to the left of the second beam. A positioning hole is provided on one side of the first beam. A positioning rod is fixedly installed on the upper side of the second beam by welding. The size of the positioning rod matches the positioning hole, and the positioning rod can be inserted into the interior of the positioning hole. A guide rod is fixedly installed at the bottom of the second beam by welding. The guide rod has a smooth surface and a through hole on its upper side. A fixing frame is fixedly installed at the bottom of the first beam. A positioning pin is movably installed at the bottom of the fixing frame. The fixing frame is located to the left of the guide rod, and the guide rod can penetrate the interior of the fixing frame and extend to the left side of the fixing frame. When the guide rod is inserted into the fixing frame, the relative position of the first beam and the second beam can be further fixed by inserting the positioning pin into the through hole on the guide rod. Positioning seats are respectively provided at the bottom of the first beam and the second beam, and the positioning seats are perpendicular to the first beam and the second beam.

[0008] Preferably, the positioning seat is arranged at the overlapping position of the first beam and the second beam, and the positioning seat has an internal threaded hole. A positioning threaded rod is installed in the internal thread of the internal threaded hole, and the positioning threaded rod is threadedly connected to the internal threaded hole.

[0009] Preferably, a spring is sleeved on the outer side of the positioning threaded rod, the spring is located between the first beam and the positioning seat, and a positioning nut is threaded on the bottom of the positioning threaded rod. The positioning nut is adapted to the specifications of the threaded rod and is located directly below the spring.

[0010] Preferably, a groove is provided above the positioning seat, and fixing rods are fixedly installed at the bottom of the first beam and the second beam respectively by welding. During assembly, the fixing rods are aligned with the groove and can be smoothly inserted into the groove.

[0011] Preferably, the positioning seat has a bolt hole in the lateral direction, and a clamping screw is installed in the internal thread of the bolt hole. The thread of the clamping screw is tightly engaged with the internal thread of the hole. A fixing turntable is welded and fixedly installed on one side of the clamping screw, and a handle is firmly installed on the side of the fixing turntable away from the clamping screw by welding.

[0012] Preferably, a clamping plate is provided at the end of the clamping screw away from the positioning seat, and a bearing is fixedly installed on one side of the clamping plate. The clamping screw is indirectly connected to the clamping plate through the bearing. The rotational movement of the clamping screw is transmitted to the clamping plate through the bearing, but the clamping plate itself does not rotate with the clamping screw.

[0013] Preferably, a top plate is provided directly above the first beam and the second beam, and a fixing block is fixedly installed at the bottom left end of the top plate. The fixing block is installed directly above the first beam, and the top plate and the second beam are not in contact.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] Compared with existing technologies, this lightweight roof beam structure for prefabricated buildings significantly reduces the overall weight of the beam structure during transportation due to the use of lightweight materials and optimized structural design. This eliminates the need for large and high-load-bearing transport equipment, allowing ordinary transport vehicles to meet the requirements, thus reducing transportation costs. At the same time, it reduces the load-bearing capacity requirements of the transport route, making the selection of transport routes more flexible and adaptable to more complex terrain and traffic conditions, greatly improving the convenience of transportation.

[0016] The advantage of weight reduction is even more prominent during installation. The lightweight cross-beam structure does not require large hoisting equipment for hoisting operations. Installation can be completed with small hoisting equipment or even manual assistance, which reduces the difficulty of operation and the high dependence on the professional skills and on-site command capabilities of construction personnel. This effectively reduces the risk of safety accidents. Moreover, the cost of using small hoisting equipment is much lower than that of large equipment, further saving the overall cost of the construction project.

[0017] Compared with existing technologies, this lightweight top beam structure for prefabricated buildings significantly reduces the pressure on the building foundation from a long-term use perspective. This avoids uneven settlement caused by excessive foundation pressure, improves the overall stability and service life of the building, and reduces maintenance costs due to foundation issues. Furthermore, the design of positioning rods and holes, guide rods and fixing frames, and fixing rods and grooves further optimizes the structure while ensuring structural connection stability and load-bearing capacity. This avoids using heavy materials to ensure strength, achieving the goal of lightweighting from multiple aspects and providing strong support for the development of prefabricated buildings. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 is a schematic diagram of the internal structure of the bottom of this utility model.

[0020] Figure 3 is a schematic diagram of the structure of this utility model from the right side.

[0021] The attached figures are labeled as follows: 1. First beam; 2. Second beam; 3. Positioning hole; 4. Positioning rod; 5. Guide rod; 6. Through hole; 7. Fixing frame; 8. Positioning pin; 9. Positioning seat; 10. Internal threaded hole; 11. Positioning threaded rod; 12. Spring; 13. Positioning nut; 14. Groove; 15. Fixing rod; 16. Bolt hole; 17. Clamping screw; 18. Fixing turntable; 19. Handle; 20. Clamping plate; 21. Bearing; 22. Top plate; 23. Fixing block. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] As shown in Figures 1 to 3, a prefabricated lightweight roof beam structure includes a first beam 1 and a second beam 2. The first beam 1 is located to the left of the second beam 2. A positioning hole 3 is provided on one side of the first beam 1. A positioning rod 4 is fixedly installed on the upper side of the second beam 2 by welding. The size of the positioning rod 4 matches the positioning hole 3 and can be inserted into the interior of the positioning hole 3. A guide rod 5 is fixedly installed at the bottom of the second beam 2 by welding. The guide rod 5 has a smooth surface and a through hole 6 on its upper side. A fixing frame 7 is fixedly installed at the bottom of the first beam 1. A positioning pin 8 is movably installed at the bottom of the fixing frame 7. The fixing frame 7 is located to the left of the guide rod 5, and the guide rod 5 can penetrate the interior of the fixing frame 7 and extend to the left side of the fixing frame 7. After the guide rod 5 is inserted into the fixing frame 7, the relative position of the first beam 1 and the second beam 2 can be further fixed by inserting the positioning pin 8 into the through hole 6 on the guide rod 5. A positioning seat 9 is provided at the bottom of the first beam 1 and the second beam 2 respectively. The positioning seat 9 is perpendicular to the first beam 1 and the second beam 2.

[0025] Specifically, the positioning holes 3 on the first beam 1 and the positioning rods 4 welded to the second beam 2 are matched and inserted to achieve precise horizontal positioning of the first beam 1 and the second beam 2, ensuring the accuracy of the beam connection. The guide rods 5 welded to the bottom of the second beam 2 can pass through the fixing frame 7 at the bottom of the first beam 1, and the positioning pins 8 are inserted into the through holes 6 on the guide rods 5 to further fix the relative positions of the first beam 1 and the second beam 2, enhancing the stability of the beam connection. The bottoms of the first beam 1 and the second beam 2 are respectively provided with positioning seats 9 perpendicular to the beam, providing a stable support foundation for the entire beam structure, which helps to improve the overall load-bearing capacity and stability of the structure. The matching of the positioning rods 4 and the positioning holes 3, the passage of the guide rods 5 and the fixing frame 7, and the insertion of the positioning pins 8 make the installation and disassembly of the beams relatively simple, facilitating later maintenance and replacement.

[0026] Example 2

[0027] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below, with reference to the specific working method, as shown in Figures 1 to 3. See the following description for details:

[0028] In a preferred embodiment, the positioning seat 9 is arranged at the overlapping position of the first beam 1 and the second beam 2. The positioning seat 9 has an internal threaded hole 10, the diameter of which is strictly matched with the pitch of the thread to ensure the connection accuracy. The internal thread of the internal threaded hole 10 is fitted with a positioning threaded rod 11, which is threadedly connected to the internal threaded hole 10. The two are tightly fixed by the threaded connection, which can effectively prevent loosening and ensure the structural connection is stable.

[0029] In a preferred embodiment, a spring 12 is sleeved on the outer side of the positioning threaded rod 11. The spring 12 is located between the first beam 1 and the positioning seat 9. The spring 12 is made of high-quality alloy steel, has excellent elasticity, and plays a role in buffering and shock absorption. A positioning nut 13 is installed at the bottom thread of the positioning threaded rod 11. The positioning nut 13 is compatible with the threaded rod and is stably located directly below the spring 12. The compression of the spring 12 can be adjusted by tightening the positioning nut 13 to ensure the stability of the structural connection.

[0030] In a preferred embodiment, a groove 14 is provided on the upper part of the positioning seat 9. The depth and width of the groove 14 are calculated to accommodate subsequent installation. The bottom of the first beam 1 and the second beam 2 are respectively fixedly installed with fixing rods 15 by welding. During assembly, the fixing rods 15 can be smoothly inserted into the groove 14 by aligning them with the groove 14. The fixing rods 15 are made of sturdy material and have a smooth surface, which achieves initial positioning and lays the groundwork for subsequent precise connection.

[0031] In a preferred embodiment, the positioning seat 9 has a bolt hole 16 in the transverse direction. The inner wall of the bolt hole 16 is machined to be smooth and regular, and the threads are evenly distributed. A clamping screw 17 is installed in the internal thread of the bolt hole 16. The threads of the clamping screw 17 are tightly engaged with the internal threads of the hole. A fixing turntable 18 is welded and fixedly installed on one side of the clamping screw 17. A handle 19 is firmly installed on the side of the fixing turntable 18 away from the clamping screw 17 by welding. The fixing turntable 18 is of suitable size, which makes it convenient for the operator to rotate the clamping screw 17.

[0032] In a preferred embodiment, a clamping plate 20 is provided at the end of the clamping screw 17 away from the positioning seat 9. A bearing 21 is fixedly installed on one side of the clamping plate 20. The clamping screw 17 is indirectly connected to the clamping plate 20 through the bearing 21. That is, the rotational movement of the clamping screw 17 is transmitted to the clamping plate 20 through the bearing 21, but the clamping plate 20 itself does not rotate with the clamping screw 17. Through the connection between the clamping screw 17, the bearing 21 and the clamping plate 20, the rotational movement of the clamping screw 17 and the axial movement of the clamping plate 20 are realized through the transition of the bearing 21. This ensures the flexibility of transmission and improves the stability and reliability of the structure.

[0033] In a preferred embodiment, a top plate 22 is provided directly above the first beam 1 and the second beam 2. The top plate 22 is made of high-strength lightweight material, taking into account both load-bearing and weight reduction requirements. A fixing block 23 is fixedly installed at the bottom left end of the top plate 22 to provide stable support for the top plate 22. The fixing block 23 is installed directly above the first beam 1. The top plate 22 and the second beam 2 are not in contact. This design can buffer stress and ensure the overall stability and safety of the structure.

[0034] The working process of this utility model is as follows: When in use, firstly, place the first beam 1 in a suitable position, and place the second beam 2 close to the first beam 1, so that the positioning rod 4 on the upper side of the second beam 2 is inserted into the positioning hole 3 on one side of the first beam 1 to complete the initial positioning. At the same time, after the bottom guide rod 5 of the second beam 2 passes through the bottom fixing frame 7 of the first beam 1 and extends to its left side, insert the positioning pin 8 into the through hole 6 on the guide rod 5 to further fix the relative position of the first beam 1 and the second beam 2.

[0035] Next, the fixing rods 15, which are fixed to the bottom of the first beam 1 and the second beam 2 respectively by welding, are aligned with the grooves 14 above the positioning seat 9 and smoothly inserted. Then, at the position where the positioning seat 9 is located where the first beam 1 and the second beam 2 overlap, the positioning threaded rod 11 is threaded into the internal threaded hole 10 on the positioning seat 9. At the same time, the spring 12 is sleeved on the outside of the positioning threaded rod 11, so that the spring 12 is located between the first beam 1 and the positioning seat 9. After that, the matching positioning nut 13 is threaded into the bottom of the positioning threaded rod 11, and the positioning nut 13 is located directly below the spring 12.

[0036] Next, by rotating the fixed turntable 18 by the handle 19, the clamping screw 17 welded on the fixed turntable 18 is driven to rotate in the bolt hole 16 in the lateral direction of the positioning seat 9. Since one end of the clamping screw 17 is indirectly connected to the clamping plate 20 through the bearing 21, the rotational movement of the clamping screw 17 is transmitted to the clamping plate 20 through the bearing 21, pushing the clamping plate 20 to move and clamping and fixing the fixing rod 15 inserted into the groove 14. Finally, the top plate 22 is placed directly above the first beam 1 and the second beam 2, so that the fixing block 23 at the bottom left end of the top plate 22 is installed directly above the first beam 1, while ensuring that the top plate 22 does not contact the second beam 2.

Claims

1. A lightweight roof beam structure for prefabricated buildings, comprising a first beam (1) and a second beam (2), characterized in that: The first beam (1) is located to the left of the second beam (2). A positioning hole (3) is provided on one side of the first beam (1). A positioning rod (4) is fixedly installed on the upper side of the second beam (2) by welding. The size of the positioning rod (4) matches the positioning hole (3). The positioning rod (4) can be inserted into the positioning hole (3). A guide rod (5) is fixedly installed at the bottom of the second beam (2) by welding. The guide rod (5) has a smooth surface and a through hole (6) is provided on its upper side. A fixing frame (7) is fixedly installed at the bottom of the first beam (1). The bottom of the frame is movably mounted with a positioning pin (8). The fixing frame (7) is located on the left side of the guide rod (5), and the guide rod (5) can penetrate the interior of the fixing frame (7) and extend to the left side of the fixing frame (7). When the guide rod (5) is inserted into the fixing frame (7), the relative positions of the first beam (1) and the second beam (2) can be further fixed by inserting the positioning pin (8) into the through hole (6) on the guide rod (5). The bottom of the first beam (1) and the second beam (2) are respectively provided with positioning seats (9), and the positioning seats (9) are perpendicular to the first beam (1) and the second beam (2).

2. The prefabricated lightweight roof beam structure according to claim 1, characterized in that: The positioning seat (9) is arranged at the overlapping position of the first beam (1) and the second beam (2). An internal threaded hole (10) is opened on the positioning seat (9). A positioning threaded rod (11) is installed in the internal thread of the internal threaded hole (10). The positioning threaded rod (11) is threadedly connected to the internal threaded hole (10).

3. The prefabricated building light roof beam structure according to claim 2, characterized in that: A spring (12) is sleeved on the outside of the positioning threaded rod (11). The spring (12) is located between the first beam (1) and the positioning seat (9). A positioning nut (13) is threaded on the bottom of the positioning threaded rod (11). The positioning nut (13) is compatible with the threaded rod and is located directly below the spring (12).

4. The lightweight roof span beam structure for prefabricated buildings according to claim 1, characterized in that: The positioning seat (9) has a groove (14) on its upper part. The bottom of the first beam (1) and the second beam (2) are respectively fixedly installed with fixing rods (15) by welding. During assembly, the fixing rods (15) are aligned with the groove (14) and can be smoothly inserted into the groove (14).

5. A lightweight roof beam structure for prefabricated buildings according to claim 1, characterized in that: The positioning seat (9) has a bolt hole (16) in the lateral direction. A clamping screw (17) is installed in the internal thread of the bolt hole (16). The thread of the clamping screw (17) is tightly engaged with the thread in the hole. A fixed turntable (18) is welded and fixedly installed on one side of the clamping screw (17). A handle (19) is firmly installed on the side of the fixed turntable (18) away from the clamping screw (17) by welding.

6. A lightweight roof beam structure for prefabricated buildings according to claim 5, characterized in that: A clamping plate (20) is provided at the end of the clamping screw (17) away from the positioning seat (9). A bearing (21) is fixedly installed on one side of the clamping plate (20). The clamping screw (17) is indirectly connected to the clamping plate (20) through the bearing (21). The rotational movement of the clamping screw (17) is transmitted to the clamping plate (20) through the bearing (21), but the clamping plate (20) itself does not rotate with the clamping screw (17).

7. A lightweight roof beam structure for prefabricated buildings according to claim 4, characterized in that: A top plate (22) is provided directly above the first beam (1) and the second beam (2). A fixing block (23) is fixedly installed at the bottom left end of the top plate (22). The fixing block (23) is installed directly above the first beam (1). The top plate (22) and the second beam (2) are not in contact.

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