Fabricated building cantilever structure

Abstract

The utility model relates to the technical field of building construction, and particularly discloses a fabricated building cantilever structure which comprises a steel pipe, a threaded rod fixedly connected to the interior of the steel pipe, a steel plate inserted outside the threaded rod and I-shaped steel fixedly connected to the surface of the steel plate, and a positioning assembly and a nut are installed on the outer surface of the threaded rod. According to the cantilever structure, the clamping groove and the protruding block are arranged, when a steel plate and a steel pipe are fixed through the nut rotating clockwise, the protruding block can be automatically clamped in the clamping groove, after the steel plate and the steel pipe are fixed, the nut cannot rotate, and once the steel plate and the steel pipe are fixed, the cantilever structure keeps stable and is not prone to loosening due to external vibration or load changes; when the cantilever beam structure needs to be adjusted, the protruding block can be driven to retract into the ring sleeve by rotating the inner threaded ring, at the moment, the nut can rotate freely, the cantilever beam structure is allowed to be adjusted when necessary, and the change requirements in building design and construction can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an assembled building cantilever structure. Background Art

[0002] The cantilever structure of prefabricated buildings refers to the cantilever structure achieved in prefabricated buildings through prefabricated components and on-site assembly. The cantilever structure refers to a part of the structure in the building that protrudes in the air without direct lower support, such as balconies, corridors, awnings, etc. In prefabricated buildings, the cantilever structure is usually designed and installed through prefabricated components such as prefabricated floor slabs, prefabricated beams, prefabricated balcony slabs, etc.

[0003] When installing traditional prefabricated building cantilever structures, the main method is to directly fix the I-beam to the wall with bolts. The bolt connection installation is relatively simple. Construction workers only need to pass the bolts through the I-beam and the wall, and then tighten them. It is suitable for quick construction. However, after the bolts are fixed, if the appropriate pre-tightening force is not applied in time during the installation process, the friction between the nut and the bolt is insufficient, and it is easy to loosen under the action of load. For example, traffic noise, equipment operation and other mechanical vibrations will affect the bolt connection and cause the nut to loosen. If the nut is found to be loose during use, repeated debugging and maintenance are required, which will affect the normal progress of the project and reduce construction efficiency. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an assembled building cantilever structure, which solves the problems of the prior art.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an assembled building cantilever structure, including a steel pipe, a threaded rod fixedly connected to the inside of the steel pipe, a steel plate inserted outside the threaded rod, and an I-beam fixedly connected to the surface of the steel plate, a positioning assembly and a nut are installed on the outer surface of the threaded rod, and a surface of the nut close to the positioning assembly is equidistantly provided with a card slot;

[0006] The positioning assembly includes a ring sleeve movably sleeved on the outer surface of the threaded rod, the inside of the ring sleeve is provided with sliding grooves at equal intervals, the inside of the sliding groove is fixedly connected to a limit rod, the outer surface of the limit rod is slidably connected to a sliding plate, the inside of the ring sleeve is slidably connected to a protrusion, the inside of the ring sleeve is movably installed with a spring, the surface of the protrusion close to the sliding plate is provided with a limiting groove, the outer surface of the ring sleeve is threadedly installed with an internal threaded ring, the inner wall of the internal threaded ring is provided with an annular groove, and the inside of the internal threaded ring is movably installed with steel balls at equal intervals.

[0007] Preferably, the top of the protrusion is arc-shaped, one end of the sliding plate is inserted into the limiting groove, and the other end of the sliding plate is inserted into the annular groove.

[0008] Preferably, the surface of the steel ball extends to the inside of the annular groove, and the surface of the steel ball is rollingly connected to the surface of the sliding plate.

[0009] Preferably, the surface of the protrusion is engaged with the inside of the slot, and a limiting hole matching the limiting rod is provided on the surface of the sliding plate.

[0010] Preferably, the surface of the nut is fitted and connected to the surface of the ring sleeve, and the outer surface of the ring sleeve is provided with threads matching the inner wall of the internal thread ring.

[0011] Preferably, the surface of the spring abuts against the end surface of the protrusion, and the protrusion extends away from the end surface of the spring to the outside of the ring sleeve.

[0012] The utility model provides an assembled building cantilever structure. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The cantilever structure of the assembled building is provided with a slot and a protrusion. When the nut rotates clockwise to fix the steel plate and the steel pipe, the protrusion can be automatically connected to the inside of the slot. After the steel plate and the steel pipe are fixed, the nut will not rotate. Once fixed, the cantilever structure will remain stable and will not easily loosen due to external vibration or load changes, thereby enhancing stability.

[0014] 2. The cantilever structure of the prefabricated building is provided with a protrusion and a spring. When it is necessary to rotate the nut and adjust the cantilever beam structure, the protrusion can be driven to retract into the ring sleeve by rotating the internal threaded ring. At this time, the nut can rotate freely, allowing the cantilever beam structure to be adjusted when necessary, thereby increasing the flexibility and adaptability of the structure and being able to better meet the changing needs in building design and construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the nut in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the positioning component in the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the ring sleeve and the internal thread ring in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the protrusion in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the sliding plate in the utility model;

[0021] Figure 7 It is a structural schematic diagram of the internal thread ring in the utility model.

[0022] In the figure: 1. steel pipe; 2. threaded rod; 3. steel plate; 4. I-beam; 5. positioning assembly; 51. ring sleeve; 52. slide groove; 53. limit rod; 54. sliding plate; 541. limit hole; 55. bump; 56. spring; 57. limit groove; 58. internal thread ring; 59. annular groove; 510. steel ball; 6. nut; 61. slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 7 The utility model provides a technical solution: an assembled building cantilever structure, comprising a steel pipe 1, a threaded rod 2 fixedly connected to the inside of the steel pipe 1, a steel plate 3 inserted outside the threaded rod 2 and an I-beam 4 fixedly connected to the surface of the steel plate 3, a positioning assembly 5 and a nut 6 are installed on the outer surface of the threaded rod 2, and a card slot 61 is equidistantly opened on the surface of the nut 6 close to the positioning assembly 5;

[0025] The positioning assembly 5 includes a ring sleeve 51 movably sleeved on the outer surface of the threaded rod 2, and the ring sleeve 51 has equidistantly arranged sliding grooves 52 inside. The sliding groove 52 is fixedly connected to a limiting rod 53 inside. The outer surface of the limiting rod 53 is slidably connected to a sliding plate 54. The ring sleeve 51 is slidably connected to a protrusion 55 inside. A spring 56 is movably installed inside the ring sleeve 51. A limiting groove 57 is provided on the surface of the protrusion 55 close to the sliding plate 54. An internal threaded ring 58 is threadedly installed on the outer surface of the ring sleeve 51. An annular groove 59 is provided on the inner wall of the internal threaded ring 58. Steel balls 510 are movably installed inside the internal threaded ring 58 at equidistant intervals. By setting the card slot 6 1 and the protrusion 55, when the nut 6 rotates clockwise to fix the steel plate 3 and the steel pipe 1, the protrusion 55 can be automatically engaged in the slot 61. After the steel plate 3 and the steel pipe 1 are fixed, the nut 6 will not rotate. Once fixed, the cantilever structure will remain stable and will not easily loosen due to external vibration or load changes, thereby enhancing stability. By rotating the internal threaded ring 58, the protrusion 55 can be driven to retract into the ring sleeve 51. At this time, the nut 6 can rotate freely, allowing the cantilever beam structure to be adjusted when necessary, thereby increasing the flexibility and adaptability of the structure and being able to better meet the changing needs in architectural design and construction.

[0026] The top of the protrusion 55 is arc-shaped, one end of the sliding plate 54 is inserted into the limiting groove 57, and the other end of the sliding plate 54 is inserted into the annular groove 59. Since one end of the sliding plate 54 is inserted into the limiting groove 57, the protrusion 55 can be prevented from detaching from the inside of the ring sleeve 51, and the sliding of the ring sleeve 51 can be limited.

[0027] The surface of the steel ball 510 extends to the inside of the annular groove 59, and the surface of the steel ball 510 is rollingly connected to the surface of the sliding plate 54. By providing the steel ball 510, the friction between the sliding plate 54 and the inner wall of the annular groove 59 can be reduced, thereby extending the service life.

[0028] The surface of the protrusion 55 is snapped into the inside of the slot 61, and the surface of the sliding plate 54 is provided with a limiting hole 541 that matches the limiting rod 53. By setting the limiting hole 541 and the limiting rod 53, the sliding of the sliding plate 54 can be limited, and the stability of the sliding plate 54 when sliding can also be enhanced.

[0029] The surface of the nut 6 is fitted and connected to the surface of the ring sleeve 51. The outer surface of the ring sleeve 51 is provided with threads matching the inner wall of the internal threaded ring 58. By providing threads on the outer surface of the ring sleeve 51, the internal threaded ring 58 can slide on the outer surface of the ring sleeve 51 and drive the sliding plate 54 to slide.

[0030] The surface of the spring 56 abuts against the end face of the protrusion 55, and the protrusion 55 extends to the outside of the ring sleeve 51 away from the end face of the spring 56. Due to the elasticity of the spring 56, the protrusion 55 can be clamped in the slot 61 to prevent the nut 6 from rotating counterclockwise.

[0031] During construction, after the steel pipe 1 is pre-buried in the specified position, concrete is poured to fix it. When installing the suspension beam, the threaded rod 2 is passed through the steel plate 3, and then the ring sleeve 51 is sleeved on the outside of the threaded rod 2, and then the nut 6 is sleeved on the outer surface of the threaded rod 2, and it is tightened by turning clockwise. At this time, the slot 61 slowly slides in the direction close to the protrusion 55. When the surface of the protrusion 55 is against the end face of the nut 6, the nut 6 can rotate normally clockwise due to the curved surface of the protrusion 55. When the nut 6 is rotated to a point where it cannot move, the steel plate 3 and the steel pipe 1 are assembled, and the I-beam 4 is fixed. Since the protrusion 55 is automatically engaged in the slot 61, the nut 6 will not rotate after the steel plate 3 and the steel pipe 1 are fixed. Once fixed, the cantilever structure will remain stable and will not easily loosen due to external vibration or load changes, thereby enhancing stability. When the cantilever beam structure needs to be adjusted, the protrusion 55 can be driven to retract into the ring sleeve 51 by rotating the internal threaded ring 58. At this time, the nut 6 can rotate freely, allowing the cantilever beam structure to be adjusted when necessary, thereby increasing the flexibility and adaptability of the structure and being able to better meet the changing needs in architectural design and construction.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An assembled building cantilever structure, comprising a steel pipe (1), a threaded rod (2) fixedly connected to the inside of the steel pipe (1), a steel plate (3) plugged into the outside of the threaded rod (2), and an I-beam (4) fixedly connected to the surface of the steel plate (3), characterized in that: A positioning assembly (5) and a nut (6) are mounted on the outer surface of the threaded rod (2); a surface of the nut (6) close to the positioning assembly (5) is provided with slots (61) at equal intervals; The positioning assembly (5) comprises a ring sleeve (51) movably sleeved on the outer surface of the threaded rod (2), the ring sleeve (51) has equidistantly arranged sliding grooves (52) inside, a limiting rod (53) is fixedly connected inside the sliding groove (52), a sliding plate (54) is slidably connected to the outer surface of the limiting rod (53), a protrusion (55) is slidably connected inside the ring sleeve (51), a spring (56) is movably installed inside the ring sleeve (51), a limiting groove (57) is provided on the surface of the protrusion (55) close to the sliding plate (54), an internal thread ring (58) is threadedly installed on the outer surface of the ring sleeve (51), an annular groove (59) is provided on the inner wall of the internal thread ring (58), and steel balls (510) are movably installed inside the internal thread ring (58).

2. The assembled building cantilever structure according to claim 1, characterized in that: The top of the protrusion (55) is arc-shaped, one end of the sliding plate (54) is inserted into the limiting groove (57), and the other end of the sliding plate (54) is inserted into the annular groove (59).

3. The assembled building cantilever structure according to claim 1 is characterized in that: The surface of the steel ball (510) extends into the interior of the annular groove (59), and the surface of the steel ball (510) is rollingly connected to the surface of the sliding plate (54).

4. The assembled building cantilever structure according to claim 1 is characterized in that: The surface of the protrusion (55) is clamped in the interior of the clamping groove (61), and the surface of the sliding plate (54) is provided with a limiting hole (541) matching the limiting rod (53).

5. The assembled building cantilever structure according to claim 1 is characterized in that: The surface of the nut (6) is fitted and connected to the surface of the ring sleeve (51), and the outer surface of the ring sleeve (51) is provided with threads matching the inner wall of the internal thread ring (58).

6. The assembled building cantilever structure according to claim 1 is characterized in that: The surface of the spring (56) abuts against the end surface of the protrusion (55), and the protrusion (55) extends away from the end surface of the spring (56) to the outside of the ring sleeve (51).

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