Fabricated building precast beam

Abstract

The utility model discloses an assembly type building precast beam which comprises a beam column, a connecting block is fixedly connected to the left side of the beam column, an inserting groove is formed in the surface of the connecting block, and a first bolt is arranged at the top of the inserting groove. Through the arrangement of the stabilizing plate, the connecting block on the left side of one beam column is inserted into the mounting groove of the other beam column, at the moment, the inserting rod is inserted into the inserting groove, then the first bolt is screwed into the internal thread groove to enable the two beam columns to be stably connected, and then the square blocks on the inner sides of the two connecting plates are inserted into the square inserting grooves in the inner sides of the two beam columns; second threaded holes are matched with round holes, then second bolts are screwed into the second threaded holes, the connecting plate and the stabilizing plates are stably connected with the two beam columns, when the connecting positions of the beam columns are stressed, the two stabilizing plates are triangular, acting force can be evenly dispersed, the stability of the connecting positions of the beam columns is greatly improved, a user can conveniently use the connecting positions, and the connecting positions of the beam columns are more stable. And the practicability of the precast beam is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated building production, in particular to a precast beam for prefabricated buildings. Background Technique

[0002] A building assembled from prefabricated components on site is called a prefabricated building. According to the form of precast components and construction methods, it is divided into five types: block buildings, panel buildings, box buildings, frame panel buildings, and lift-slab and lift-story buildings, etc. Building components are produced and processed in workshops. The main types of components are: exterior wall panels, interior wall panels, composite slabs, balconies, air-conditioning panels, stairs, precast beams, precast columns, etc. Among them, the precast beam, as one of the load-bearing structures, supports the wall panels of each floor.

[0003] Most of the existing precast beams are fixed by fixing bolts during splicing. However, in the event of a geological disaster, the connection between the two precast beams is not stable enough, which easily causes the fixing bolts at the connection to be distorted and bent, deforming the precast beam, and thus causing the overall building to collapse and be damaged, which is not convenient for users and reduces the practicality of the precast beam. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the purpose of the present utility model is to provide a precast beam for prefabricated buildings, which has the advantage of stable connection, and solves the problem that most of the existing precast beams are fixed by fixing bolts during splicing. However, in the event of a geological disaster, the connection between the two precast beams is not stable enough, which easily causes the fixing bolts at the connection to be distorted and bent, deforming the precast beam, and thus causing the overall building to collapse and be damaged.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A precast beam for prefabricated buildings, including a beam-column. A connection block is fixedly connected to the left side of the beam-column. A slot is opened on the surface of the connection block. A first bolt is arranged at the top of the slot. An installation groove is opened on the surface of the right side of the beam-column. A plug rod is arranged at the bottom of the beam-column. The top end of the plug rod penetrates into the interior of the installation groove. The plug rod is rotatably connected to the beam-column. An internal thread groove is opened on the surface of the plug rod. Reinforcement grooves are opened at both ends of the surfaces on both sides of the beam-column. Square slots are opened on both sides of the inner surface of the reinforcement groove. Second threaded holes are opened in the middle of the inner surface of the reinforcement groove. Connecting plates are arranged on both sides of the bottom of the beam-column. Round holes are opened at both ends of the side surface of the connecting plate. A plurality of square blocks are fixedly connected to the inner sides of the connecting plates. Second bolts are arranged at both ends of the outer sides of the connecting plates. Stabilizing plates are fixedly connected to the bottoms of the connecting plates.

[0006] Preferably, both sides of the bottom surface of the beam column are provided with limiting grooves, and limiting blocks are slidably connected inside the limiting grooves, and the limiting blocks are fixedly connected to both sides of the inserting rod.

[0007] Preferably, reinforcing columns are fixedly connected to both sides of the bottom wall of the installation groove, and reinforcing holes are provided on both sides of the surface of the connecting block.

[0008] Preferably, washers are sleeved on the surfaces of the top end of the first bolt and the front end of the second bolt.

[0009] Preferably, connecting grooves are provided on the surface of the left side of the beam column and the surface of the right side of the connecting block, and reinforcing ribs are fixedly connected inside the connecting grooves.

[0010] Preferably, the installation groove extends to the surface of the beam column and communicates with the outside.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the setting of the stabilizing plate in the present utility model, the connecting block on the left side of the beam column is inserted into the installation groove of another beam column. At this time, the inserting rod is inserted into the inserting slot, and then the first bolt is screwed into the internal thread groove to firmly connect the two beam columns. Then, the square blocks on the inner sides of the two connecting plates are inserted into the square inserting slots on the inner sides of the two beam columns, so that the second threaded holes are aligned with the round holes, and then the second bolt is screwed into the second threaded hole to firmly connect the connecting plates and the stabilizing plate with the two beam columns. When the connection part of the beam columns is stressed, since the two stabilizing plates are triangular, the acting force can be evenly dispersed, greatly improving the stability of the connection part of the beam columns, facilitating the use of the user, and improving the practicability of the precast beam.

[0013] 2. Through the setting of the limiting block in the present utility model, the rotation of the inserting rod is avoided by the limiting block, so that when the first bolt is screwed into the internal thread groove, the inserting rod will not rotate, so that the first bolt can be directly tightened without clamping and fixing the inserting rod with a wrench, further improving the assembly speed of the beam columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 is the top view schematic diagram of the beam column of the structure of the present utility model;

[0016] Figure 3 is the front sectional view schematic diagram of the beam column of the structure of the present utility model;

[0017] Figure 4 is the bottom sectional view schematic diagram of the beam column of the structure of the present utility model.

[0018] In the figure: 1, beam-column; 2, connecting block; 3, slot; 4, first bolt; 5, installation groove; 6, inserting rod; 7, internal thread groove; 8, reinforcement groove; 9, square slot; 10, second threaded hole; 11, connecting plate; 12, round hole; 13, square block; 14, second bolt; 15, stabilizing plate; 16, limiting groove; 17, limiting block; 18, reinforcement column; 19, reinforcement hole; 20, washer; 21, connecting groove; 22, reinforcing rib. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 4 shown, a precast beam for an assembled building includes a beam-column 1. A connecting block 2 is fixedly connected to the left side of the beam-column 1. A slot 3 is provided on the surface of the connecting block 2. A first bolt 4 is arranged at the top of the slot 3. An installation groove 5 is provided on the surface of the right side of the beam-column 1. An inserting rod 6 is arranged at the bottom of the beam-column 1. The top end of the inserting rod 6 penetrates into the interior of the installation groove 5. The inserting rod 6 is rotatably connected to the beam-column 1. An internal thread groove 7 is provided on the surface of the inserting rod 6. Reinforcement grooves 8 are provided at both ends of the surfaces on both sides of the beam-column 1. Square slots 9 are provided on both sides of the inner surface of the reinforcement groove 8. Second threaded holes 10 are provided in the middle of the inner surface of the reinforcement groove 8. Connecting plates 11 are arranged on both sides of the bottom of the beam-column 1. Round holes 12 are provided at both ends of the side surface of the connecting plate 11. A plurality of square blocks 13 are fixedly connected to the inner sides of the connecting plates 11. Second bolts 14 are arranged at both ends of the outer sides of the connecting plates 11. Stabilizing plates 15 are fixedly connected to the bottoms of the connecting plates 11.

[0021] Refer to Figure 3 and Figure 4 , limiting grooves 16 are provided on both sides of the bottom surface of the beam-column 1. Limiting blocks 17 are slidably connected inside the limiting grooves 16. The limiting blocks 17 are fixedly connected to both sides of the inserting rod 6.

[0022] As a technical optimization scheme of the present invention, through the arrangement of the limiting blocks 17, the rotation of the inserting rod 6 is avoided by the limiting blocks 17. When the first bolt 4 is screwed into the internal thread groove 7, the inserting rod 6 will not rotate. Therefore, it is not necessary to clamp and fix the inserting rod 6 with a wrench, and the first bolt 4 can be directly tightened, further improving the assembly speed of the beam-column 1.

[0023] Refer to Figures 1 to 3, reinforcing columns 18 are fixedly connected to both sides of the bottom wall of the installation groove 5, and reinforcing holes 19 are formed on both sides of the surface of the connecting block 2.

[0024] As a technical optimization scheme of the present invention, through the arrangement of the reinforcing columns 18, the contact area between the two beam columns 1 is increased, thereby improving the stability of the connection of the structure.

[0025] Reference Figure 1 and Figure 4 , washers 20 are sleeved on the surfaces of the top ends of the first bolts 4 and the front ends of the second bolts 14.

[0026] As a technical optimization scheme of the present invention, through the arrangement of the washers 20, the first bolts 4 and the second bolts 14 are prevented from loosening to make them more stable, and at the same time, the surfaces of the slot 3 and the connecting plate 11 are prevented from being scratched by the nuts.

[0027] Reference Figure 3 , connection grooves 21 are formed on the left surfaces of the beam columns 1 and the right surfaces of the connecting blocks 2, and reinforcing ribs 22 are fixedly connected to the interiors of the connection grooves 21.

[0028] As a technical optimization scheme of the present invention, through the arrangement of the reinforcing ribs 22, the fixing strength between the beam columns 1 and the connecting blocks 2 is improved, and the stability of the structure is further improved.

[0029] Reference Figures 1 to 3 , the installation groove 5 extends to the surface of the beam column 1 and communicates with the outside.

[0030] As a technical optimization scheme of the present invention, through the arrangement that the installation groove 5 extends to the surface of the beam column 1 and communicates with the outside, when the two beam columns 1 are connected, the beam column 1 can insert the connecting block 2 into the interior of the installation groove 5 from above, avoiding the problem that when installing precast beams that can only be installed from the right side, the installation distance on the right side is insufficient and the last section cannot be assembled, and improving the practicability of the structure.

[0031] The working principle and usage process of the present invention: When in use, the user inserts the connecting block 2 on the left side of the beam column 1 into the installation groove 5 of another beam column 1. At this time, the inserting rod 6 is inserted into the interior of the slot 3, and at the same time, the reinforcing column 18 is inserted into the interior of the reinforcing hole 19. Then, the first bolt 4 is screwed into the internal thread groove 7 to make the two beam columns 1 stably connected. Then, the square blocks 13 on the inner sides of the two connecting plates 11 are inserted into the square slots 9 on the inner sides of the two beam columns 1 to make the second threaded holes 10 coincide with the round holes 12. Then, the second bolt 14 is screwed into the interior of the second threaded hole 10 to stably connect the connecting plates 11 and the stabilizing plate 15 with the two beam columns 1. When continuous assembly is required, repeat the above steps.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precast beam for an assembled building, comprising a beam-column (1), characterized in that: On the left side of the beam-column (1), a connection block (2) is fixedly connected. On the surface of the connection block (2), a slot (3) is provided. At the top of the slot (3), a first bolt (4) is arranged. On the right side surface of the beam-column (1), a mounting groove (5) is provided. At the bottom of the beam-column (1), a plug rod (6) is arranged. The top end of the plug rod (6) penetrates into the interior of the mounting groove (5). The plug rod (6) is rotatably connected to the beam-column (1). On the surface of the plug rod (6), an internal thread groove (7) is provided. At both ends of the two side surfaces of the beam-column (1), reinforcement grooves (8) are provided. On both sides of the inner surface of the reinforcement groove (8), square slots (9) are provided. In the middle of the inner surface of the reinforcement groove (8), second threaded holes (10) are provided. At both sides of the bottom of the beam-column (1), connection plates (11) are arranged. At both ends of the side surface of the connection plate (11), round holes (12) are provided. Inside the connection plates (11), a plurality of square blocks (13) are fixedly connected. At both ends of the outer side of the connection plate (11), second bolts (14) are arranged. At the bottom of the connection plates (11), stabilizing plates (15) are fixedly connected.

2. The precast beam for an assembled building according to claim 1, wherein: At both sides of the bottom surface of the beam-column (1), limiting grooves (16) are provided. Inside the limiting grooves (16), limiting blocks (17) are slidably connected. The limiting blocks (17) are fixedly connected to both sides of the plug rod (6).

3. The precast beam for prefabricated building according to claim 1, wherein: At both sides of the bottom wall of the mounting groove (5), reinforcement columns (18) are fixedly connected. At both sides of the surface of the connection block (2), reinforcement holes (19) are provided.

4. A precast beam for an assembled building according to claim 1, characterized in that: On the surface of the top end of the first bolt (4) and the surface of the front end of the second bolt (14), washers (20) are sleeved.

5. A precast beam for an assembled building according to claim 1, characterized in that: On the left side surface of the beam-column (1) and the right side surface of the connection block (2), connection grooves (21) are provided. Inside the connection grooves (21), reinforcing ribs (22) are fixedly connected.

6. The precast beam for prefabricated building according to claim 1, characterized in that: The mounting groove (5) extends to the surface of the beam-column (1) and communicates with the outside.

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