Fabricated building frame
By introducing a sliding sleeve and hydraulic rod design into the prefabricated building frame, the problem of difficult roof slope adjustment is solved, enabling flexible adjustment of the roof slope to meet the usage needs of different weather conditions and improve the practicality of the roof.
Patent Information
- Application Number
- CN202520130008.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The roofs of existing prefabricated buildings are generally fixed frame structures, with slopes that are difficult to adjust and cannot adapt to different weather conditions.
The design employs a sliding sleeve and hydraulic rod mounted on a steel beam. The movement of the rafters and sliding sleeve is driven by the extension and retraction of the hydraulic rod, thereby adjusting the roof slope. Combined with the use of mounting holes, tiles or roofing panels can be laid in a suspended manner, achieving dynamic adjustment of the slope.
It enables flexible adjustment of the roof slope, allowing rainwater to be drained on rainy days and increasing the amount of light on sunny days, meeting the needs of use in different environments and improving the practicality of the roof structure.
Smart Images

Figure CN223738714U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated building technology, and specifically relates to a prefabricated building frame. Background Technology
[0002] With the continuous increase in the global population and the accelerating pace of urbanization, more and more people are flocking to cities in search of better living conditions. This has led to a rapid increase in housing demand. Traditional construction methods can no longer meet the need for rapid and large-scale housing solutions. Prefabricated construction, as a new construction method, is widely used due to its advantages such as high efficiency, short construction period, and low resource consumption. Furthermore, with the gradual disappearance of the demographic dividend and rising labor costs, traditional construction methods, with their long construction periods and labor-intensive nature, cannot effectively address the challenge of labor shortages. Prefabricated construction, using factory production and assembly-based construction, can significantly shorten the construction period, reduce human resource input, and lower labor costs.
[0003] Currently, the roofs of prefabricated buildings on the market are generally fixed frame structures, and the slope of these roofs is difficult to adjust according to rain, snow or sunny weather, resulting in low flexibility. Therefore, this application proposes a prefabricated building frame. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated building frame, which aims to solve the technical problem that the roofs of prefabricated buildings are generally fixed frame structures, and the roof slope is difficult to adjust.
[0005] Technical solution
[0006] To solve the above-mentioned technical problems, this utility model provides a prefabricated building frame, including a steel beam. A pair of sliding sleeves are slidably fitted on the steel beam, and the pair of sliding sleeves are distributed at both ends of the steel beam. A hydraulic rod is vertically mounted at the center of the top of the steel beam. A rafter is provided between the telescopic end of the hydraulic rod and the top of the pair of sliding sleeves. Both ends of the rafter are hinged to the sliding sleeves and the telescopic end of the hydraulic rod.
[0007] Preferably, the telescopic end of the hydraulic rod is fixedly connected to a connecting block, the connecting block is distributed along the length of the steel beam, and a pair of rafters are respectively hinged to both ends of the connecting block.
[0008] Preferably, a connecting support is vertically mounted on the top of the sliding sleeve, and the end of the rafter away from the hydraulic rod is hinged to the top of the connecting support.
[0009] Preferably, the rafter has a plurality of first mounting holes, and the upper surface of the connecting block has a second mounting hole.
[0010] Preferably, the steel beam has a groove along its length on its side, and pulleys embedded in the groove are rotatably mounted on both sides inside the sliding sleeve.
[0011] Preferably, a screw hole is provided on the side wall of the sliding sleeve, and a bolt is threaded through the screw hole. The front end of the bolt is set to a smooth surface and extends into the sliding sleeve to be inserted into the pulley.
[0012] Preferably, the steel beam is hollow inside, and a mounting sleeve is vertically fixed at the center of the top of the steel beam, and the hydraulic rod is assembled inside the mounting sleeve.
[0013] Preferably, a force-bearing block is fixedly mounted on the top of the sliding sleeve. The force-bearing block is located on the side of the connecting support away from the hydraulic rod. The force-bearing block abuts against the connecting support, and the top of the force-bearing block bends and extends toward the hinge axis of the rafter and the connecting support.
[0014] Beneficial effects
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention utilizes hydraulic rods mounted on steel beams and a pair of sliding sleeves. Multiple sets of building frames are arranged side-by-side and clamped onto the top of the prefabricated building wall to form a roof support for the prefabricated building. Tiles or roof panels are suspended from the rafters using the first mounting holes, and a rain shelter is erected above the connecting blocks using the second mounting holes. This allows for rapid assembly of the building's roof structure. On rainy days, activating the hydraulic rods pushes the connecting blocks upwards, causing one end of a pair of rafters to move upwards, pulling the pair of sliding sleeves closer together along the steel beam, allowing the roof to be laid on top of the rafters. The increased slope of the roof tiles or roof panels facilitates rainwater drainage. On sunny days, by activating the hydraulic rod to move the connecting block downwards, the rafters can be placed horizontally above the steel beams. The roof tiles or roof panels laid on top of the rafters are also horizontally distributed, which allows sunlight to fully reach the roof tiles or roof panels. When using translucent roof tiles or roof panels, the amount of natural light inside the prefabricated building can be increased. The overall structure is reasonable, and it has the function of adjusting the roof slope of the prefabricated building. It is highly flexible and can meet the usage needs in different environments, making it highly practical. Attached image description:
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the hydraulic rod and connecting block in this utility model;
[0020] Figure 3 This utility model Figure 1 Enlarged view of point A in the image;
[0021] Figure 4 This is a schematic diagram of the disassembled structure of the sliding sleeve and pulley in this utility model;
[0022] Figure 5 This is a schematic diagram of the end structure of the steel beam in this utility model.
[0023] The markings in the attached diagram are as follows: 1. Steel crossbeam; 2. Sliding sleeve; 3. Hydraulic rod; 4. Rafter; 5. Connecting block; 6. Mounting sleeve; 7. First mounting hole; 8. Second mounting hole; 9. Slide groove; 10. Connecting support; 11. Load-bearing block; 12. Pulley; 13. Bolt; 14. Screw hole; 15. Chamfer. Detailed Implementation
[0024] 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.
[0025] This embodiment provides a prefabricated building frame, the structural diagram of which is shown below. Figures 1-5As shown, the structure includes a steel beam 1, on which a pair of sliding sleeves 2 are slidably mounted. The pair of sliding sleeves 2 are distributed at both ends of the steel beam 1. A hydraulic rod 3 is vertically mounted at the center of the top of the steel beam 1. A rafter 4 is provided between the telescopic end of the hydraulic rod 3 and the top of the pair of sliding sleeves 2. Both ends of the rafter 4 are hinged to the sliding sleeves 2 and the telescopic end of the hydraulic rod 3. Specifically, a connecting block 5 is fixedly connected to the telescopic end of the hydraulic rod 3. The connecting blocks 5 are distributed along the length of the steel beam 1. The pair of rafters 4 are respectively hinged to both ends of the connecting blocks 5. A connecting support 10 is vertically mounted on the top of the sliding sleeves 2. The end of the rafter 4 away from the hydraulic rod 3 is hinged to the top of the connecting support 10. Multiple first mounting holes 7 are provided on the rafters 4, and second mounting holes 8 are provided on the upper surface of the connecting block 5. This structural design allows for the suspension of tiles or roofing panels on the rafters 4 using the first mounting holes 7, and the erection of a rain shelter above the connecting block 5 using the second mounting holes 8. The rain shelter extends to the sides above the tiles or roofing panels. On rainy days, the hydraulic rod 3 is activated to push the connecting block 5 upwards, causing one end of each pair of rafters 4 to move upwards, pulling a pair of sliding sleeves 2 together along the steel beam 1. This allows for a greater slope in the tiles or roofing panels laid on top of the rafters 4, which facilitates rainwater drainage. On sunny days, by activating the hydraulic rod 3, the connecting block 5 is moved downwards, which, in conjunction with a pair of rafters 4, pushes a pair of sliding sleeves 2 away from each other. At this time, the rafters 4 are placed horizontally above the steel beam 1, and the tiles or roofing panels laid on top of the rafters 4 are also distributed horizontally. This allows sunlight to fully illuminate the roof tiles or roofing panels. When using translucent tiles or roofing panels, the amount of natural light inside the prefabricated building can be increased.
[0026] In a further embodiment, a groove 9 is provided on the side of the steel beam 1 along the length direction, and pulleys 12 embedded in the groove 9 are rotatably mounted on both sides inside the sliding sleeve 2 to guide and limit the movement of the sliding sleeve 2.
[0027] In this embodiment, a screw hole 14 is provided on the side wall of the sliding sleeve 2, and a bolt 13 is threaded through the screw hole 14. The front end of the bolt 13 is set to a smooth surface and extends into the sliding sleeve 2 to be inserted into the pulley 12. After the bolt 13 is removed from the sliding sleeve 2, the pulley 12 can be removed from the sliding sleeve 2. The bottom of the sliding sleeve 2 is through-hole, and the bottom of the two inner side walls of the sliding sleeve 2 is provided with chamfers 15 for easy assembly.
[0028] In a further embodiment, the steel beam 1 is hollow inside, which can reduce the overall weight. A mounting sleeve 6 is vertically fixed at the center of the top of the steel beam 1, and the hydraulic rod 3 is assembled in the mounting sleeve 6.
[0029] In this embodiment, a force-bearing block 11 is fixedly mounted on the top of the sliding sleeve 2. The force-bearing block 11 is located on the side of the connecting support 10 away from the hydraulic rod 3. The force-bearing block 11 abuts against the connecting support 10. The top of the force-bearing block 11 bends and extends toward the hinge axis of the rafter 4 and the connecting support 10, which is used to provide auxiliary support at the connection between the rafter 4 and the connecting support 10 and improve the structural strength.
[0030] Working principle: In use, multiple sets of building frames are clamped side by side on the top of the prefabricated building wall to form a prefabricated building roof support. Tiles or roofing panels are suspended on the rafters 4 using the first mounting holes 7, and a rain shelter is erected above the connecting block 5 using the second mounting holes 8. The sides of the rain shelter extend above the tiles or roofing panels. This allows for rapid assembly of the building roof structure. On rainy days, activating the hydraulic rod 3 pushes the connecting block 5 upwards, causing one end of a pair of rafters 4 to move upwards, pulling a pair of sliding sleeves 2 together along the steel beam 1. This allows the tiles or roofing panels laid on top of the rafters 4 to slide freely. The increased slope of the roof facilitates rainwater drainage. On sunny days, the hydraulic rod 3 is activated to move the connecting block 5 downwards, which in turn pushes a pair of sliding sleeves 2 away from each other, allowing the rafters 4 to be placed horizontally above the steel beam 1. The tiles or roofing panels on top of the rafters 4 are also horizontally distributed, which allows sunlight to fully illuminate the roof tiles or roofing panels. When using translucent tiles or roofing panels, the amount of natural light inside the prefabricated building can be increased. The overall structure is reasonable, and it has the function of adjusting the roof slope of the prefabricated building. It is highly flexible and can meet the needs of use in different environments, making it highly practical.
[0031] All technical features in this embodiment can be freely combined according to actual needs.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A prefabricated building frame, comprising a steel beam (1), characterized in that: a pair of sliding sleeves (2) are slidably sleeved on the steel beam (1), the sliding sleeves (2) are arranged at both ends of the steel beam (1), a hydraulic rod (3) is vertically arranged at the middle of the top of the steel beam (1), a rafter (4) is arranged between the telescopic end of the hydraulic rod (3) and the top end of the sliding sleeve (2), and both ends of the rafter (4) are hingedly arranged with the sliding sleeve (2) and the telescopic end of the hydraulic rod (3).
2. The fabricated building frame of claim 1, wherein, The telescopic end of the hydraulic rod (3) is fixedly connected with a connecting block (5), the connecting block (5) is arranged along the length direction of the steel beam (1), and the two ends of the connecting block (5) are hingedly arranged with the rafter (4).
3. The fabricated building frame of claim 1, wherein, A connecting support (10) is vertically arranged at the top of the sliding sleeve (2), and one end of the rafter (4) away from the hydraulic rod (3) is hingedly arranged with the top end of the connecting support (10).
4. The fabricated building frame of claim 2, wherein, A plurality of first mounting holes (7) are formed in the rafter (4), and a second mounting hole (8) is formed in the upper surface of the connecting block (5).
5. The fabricated building frame of claim 1, wherein, A sliding groove (9) is formed in the side surface of the steel beam (1) along the length direction, and a pulley (12) embedded in the sliding groove (9) is rotatably arranged on both sides of the sliding sleeve (2).
6. The fabricated building frame of claim 5, wherein, A screw hole (14) is formed in the side wall of the sliding sleeve (2), a bolt (13) is threadedly arranged in the screw hole (14), and the front end of the bolt (13) is provided with a smooth surface and extends into the sliding sleeve (2) to be inserted with the pulley (12).
7. The fabricated building frame of claim 1, wherein, The steel beam (1) is hollow, an installation sleeve (6) is vertically fixed at the middle of the top of the steel beam (1), and the hydraulic rod (3) is arranged in the installation sleeve (6).
8. The fabricated building frame of claim 1, wherein, A stress block (11) is fixedly arranged at the top of the sliding sleeve (2), the stress block (11) is located on the side of the connecting support (10) away from the hydraulic rod (3), the stress block (11) abuts against the connecting support (10), and the top of the stress block (11) extends towards the hinged shaft of the connecting support (10) and the rafter (4).