A quick-positioning connection node for prefabricated buildings

Abstract

This utility model relates to the field of prefabricated building technology, and particularly to a quick-positioning connection node for prefabricated buildings, comprising: a prefabricated wall with a groove at its bottom, and first embedded sleeves pre-embedded on both sides of the groove; an inner support and a side support connected to an installation base, the inner support being located within the groove, and the side supports abutting against the left and right sides of the prefabricated wall; and pre-embedded reinforcing bars extending upwards between the inner supports on the installation base. The groove at the bottom of the prefabricated wall is an open structure, allowing the wall to be placed above the pre-embedded reinforcing bars and inner supports of the installation base without precise alignment during hoisting; the wall is gently pushed to abut against one side support, and then the other side support is installed. Subsequently, formwork is erected and cast-in-place, thus completing the quick-positioning connection and installation of the wall panel. The entire process eliminates the need for repeated checks of alignment, making operation convenient and simple, with low precision requirements.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and more specifically, to a quick-positioning connection node for prefabricated buildings. Background Technology

[0002] Prefabricated buildings are assembled on site from prefabricated components. When installing prefabricated walls, the pre-reserved steel bars are usually inserted into the corresponding slots to complete the initial positioning. Then, concrete is poured at the joint between the two panels to complete the connection of the prefabricated walls.

[0003] Patent CN215630807U discloses a rapid positioning and connection structure for steel plate shear walls in prefabricated buildings. It achieves initial positioning and fixation of the first and second walls during hoisting through main reinforcing bars and fixing grooves; the second reinforcing bar, in conjunction with the first reinforcing bar, completes repositioning and limiting during descent; slight wall misalignment is detected by the verticality of the positioning pin within the observation groove; and precise fitting is ensured by repeatedly adjusting the hoisting angle through positioning components. The connecting plate fixes the two walls through the first and second connecting grooves, and the first bolt hole is used for pre-installing fixing bolts before subsequent overall casting and sealing. The fixing bolts also serve as temporary fixation during hoisting and sealing. However, the above positioning and connection structure requires precise alignment of the reinforcing bars and holes, as well as precise alignment of the guide cylinder and self-centering auxiliary conical groove, placing certain demands on operational precision and making the operation difficult. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a quick-positioning connection node for prefabricated buildings.

[0005] A quick-positioning connection node for prefabricated buildings, comprising:

[0006] A precast wall, wherein a groove is provided at the bottom of the precast wall, and a first embedded sleeve is embedded on both sides of the groove;

[0007] The mounting base is connected to an inner support and a side support. The inner support is located in a slot, and the side support abuts against the left and right sides of the precast wall. Pre-embedded steel bars also extend upward between the inner supports on the mounting base.

[0008] Furthermore, the mounting base is pre-embedded with a second pre-embedded sleeve for installing the inner support.

[0009] Furthermore, the mounting base is also pre-embedded with a third pre-embedded sleeve for installing the side support.

[0010] Furthermore, the inner support includes an inner bottom plate and an inner vertical plate that are perpendicular to each other. The bottom end of the inner vertical plate is fixed to the middle of the upper surface of the inner bottom plate. The inner bottom plate has two first through holes, located on both sides of the inner vertical plate, and is bolted to the second pre-embedded sleeve. The inner vertical plate has a second through hole, located at the center of the inner vertical plate.

[0011] Furthermore, the second through hole is coaxial with the first embedded sleeve, and the bolt passes through the first embedded sleeve and the second through hole.

[0012] Furthermore, the side support includes a side base plate, a side upright plate, and a connecting plate; the side base plate and the side upright plate are fixedly connected to form an L-shaped structure; the connecting plate is a triangular plate, with its two right-angled sides fixedly connected to the side base plate and the side upright plate respectively.

[0013] Furthermore, the side bottom plate has a third through hole, which is bolted to the third embedded sleeve.

[0014] Furthermore, the precast wall has embedded steel rings extending from its side.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This prefabricated building uses a quick-positioning connection node. The groove at the bottom of the prefabricated wall is an open structure. During the hoisting process, the groove of the prefabricated wall can be placed above the embedded steel bars and inner supports of the installation base without precise alignment. Then, the prefabricated wall is gently pushed to abut against one side support. After the prefabricated wall is lowered onto the installation base, the other side support is installed. Then, formwork is erected and cast-in-place, thus completing the quick positioning and connection installation of the wall panel. The entire process does not require repeated checks for alignment or alignment; it only requires lowering, groove insertion, and gentle pushing to abut. The operation is convenient and simple, with low requirements for operational precision. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the quick-positioning connection node for prefabricated buildings in the embodiment.

[0019] Figure 2 This is an exploded view of the quick-positioning connection node for prefabricated buildings in the embodiment.

[0020] Figure 3 This is a schematic diagram of the prefabricated wall in the embodiment.

[0021] Figure 4 This is a schematic diagram of the installation base, inner support, and side support in the embodiment.

[0022] Figure 5 This is a schematic diagram of the inner support in the embodiment.

[0023] Figure 6 This is a schematic diagram of the side support in the embodiment.

[0024] In the diagram: 1. Precast wall; 11. Groove; 12. First embedded sleeve; 13. Countersunk hole; 14. Reinforcing bar ring;

[0025] 2. Installation base; 21. Embedded reinforcing bars; 22. Second embedded sleeve; 23. Third embedded sleeve;

[0026] 3. Inner support; 31. Inner bottom plate; 311. First through hole; 32. Inner vertical plate; 321. Second through hole;

[0027] 4. Side support; 41. Side bottom plate; 411. Third through hole; 42. Side upright plate; 43. Connecting plate. Detailed Implementation

[0028] 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.

[0029] like Figures 1-4 As shown, this embodiment provides a quick-positioning connection node for prefabricated buildings, including a prefabricated wall 1, and inner supports 3 and side supports 4 connected to the mounting base 2. A slot 11 is formed at the bottom of the prefabricated wall 1, and first embedded sleeves 12 are pre-embedded on both sides of the slot 11. In practical applications, the mounting base 2 can be a cast-in-place floor slab or a floor slab constructed in other ways. The inner supports 3 are located within the slot 11, and the side supports 4 abut against the left and right sides of the prefabricated wall 1; pre-embedded reinforcing bars 21 extend upwards between the inner supports 3 on the mounting base 2.

[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 4As shown, the mounting base 2 has a second embedded sleeve 22 pre-embedded for installing the inner support 3; the mounting base 2 also has a third embedded sleeve 23 pre-embedded for installing the side support 4. Specifically, at the location where the mounting base 2 connects to the precast wall 1, two rows of embedded steel bars 21 extend upwards, and second embedded sleeves 22 are spaced apart between the embedded steel bars 21. Each second embedded sleeve 22 is used to connect to the inner support. On both sides of the embedded steel bars 21, third embedded sleeves 23 are pre-embedded respectively. The third embedded sleeves 23 are used to abut against the precast wall 1, providing auxiliary fixing during the installation of the precast wall.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the inner support 3 includes an inner bottom plate 31 and an inner vertical plate 32 that are perpendicular to each other. The bottom end of the inner vertical plate 32 is fixed to the middle of the upper surface of the inner bottom plate 31. The inner bottom plate 31 has two first through holes 311, located on both sides of the inner vertical plate 32, and is bolted to the second embedded sleeve 22. The inner vertical plate 32 has a second through hole 321, located at the center of the inner vertical plate 32. After the inner support 3 is installed on the second embedded sleeve 22 of the mounting base 2, the inner vertical plate 32 is located at the center line of the two rows of embedded steel bars 21. When the precast wall 1 is installed and fixed, the slots 11 of the precast wall 1 are fastened to each embedded steel bar 21 and each inner support 3. After the installation of the side supports 4 and the edge formwork are completed, the precast wall can be cast in place to complete the fixed installation of the precast wall.

[0032] More specifically, the first embedded sleeve 12 of the precast wall 1 is provided with a countersunk hole 13 at its outer end. The second through hole 321 of the inner vertical plate 32 is coaxial with the two first embedded sleeves 12. After the bolt passes through the first embedded sleeve 12 and the second through hole 321, the countersunk hole 13 facilitates the tightening of the bolt.

[0033] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the side support 4 includes a side base plate 41, a side upright plate 42, and a connecting plate 43; the side base plate 41 and the side upright plate 42 are fixedly connected to form an L-shaped structure; the connecting plate 43 is a triangular plate, with its two right-angled sides fixed to the side base plate 41 and the side upright plate 42 respectively. The side base plate 41 has a third through hole 411, which is bolted to the third embedded sleeve 23. During the construction of the prefabricated building, the thickness of the precast wall 1 and the positions of each embedded sleeve are pre-determined. Therefore, the position of the third embedded sleeve 23 in the mounting base 2 for installing the side support 4 is also a pre-determined embedded position after the drawing is completed. After the side support 4 is installed, the side base plate 41 just abuts against the side wall of the precast wall 1. In practical applications, third embedded sleeves 23 can be pre-embedded at different distances from the pre-embedded reinforcing bars 21. When fixing the wall, the third embedded sleeve 23 at a suitable position can be selected so that the side base plate 41 in the side support 4 abuts against the precast wall 1. In practical applications, it is also possible that after installing the side support 4, there will be a small gap between the side base plate 41 and the side wall of the precast wall 1. In this case, a wooden wedge can be inserted into the gap.

[0034] In this embodiment, a pre-embedded steel ring 14 extends from the side of the prefabricated wall 1.

[0035] The quick-positioning connection node for prefabricated buildings provided in this embodiment, when applied, firstly, the inner support 3 is installed through the first through hole 311 into the second embedded sleeve 22 between the embedded reinforcing bars 21. Simultaneously, the side support 4 on one side of the embedded reinforcing bars 21 is installed through the third through hole 411 into the corresponding third embedded sleeve 23. Then, the prefabricated wall 1 is hoisted above the mounting base 2. The slot 11 of the prefabricated wall 1 falls above the inner support 3 and the embedded reinforcing bars 21, and one side wall of the prefabricated wall 1 abuts against the side plate 42 of the side support 4. After the prefabricated wall 1 falls to the upper surface of the mounting base 2, the side support 4 on the other side of the prefabricated wall 1 is installed. Subsequently, bolts are passed through the first embedded sleeve 12 of the prefabricated wall 1 for reinforcement. After the formwork is erected at the connection of the adjacent precast walls, the concrete is poured in place. The poured concrete fills the groove 11 and then gradually moves upward until it fills the connection. After the concrete solidifies, the formwork and side support 4 are removed, thus completing the rapid positioning and connection of the precast walls.

[0036] The quick positioning connection node for prefabricated buildings provided in this embodiment features an open slot at the bottom of the prefabricated wall 1. During the hoisting process, the slot 11 of the prefabricated wall 1 can be placed above the embedded steel bars 21 and inner supports 3 of the installation base without the need for precise alignment. Then, the prefabricated wall 1 is gently pushed to abut against one side support 4. After the prefabricated wall 1 is lowered onto the installation base 2, the other side support 4 is installed. Following this, formwork is erected and cast-in-place concrete is poured, thus completing the quick positioning and connection installation of the wall panel. The entire process does not require repeated checks for alignment or alignment; it only requires lowering, slotting, and gentle pushing to abut. The operation is convenient and simple, with low precision requirements. Furthermore, the side support 4 is a detachable component that can be reused.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A quick positioning connection node for fabricated buildings, characterized by, include: A precast wall (1) is provided with a groove (11) at the bottom of the precast wall (1), and a first pre-embedded sleeve (12) is pre-embedded on both sides of the groove (11); The inner support (3) and the side support (4) are connected to the mounting base (2). The inner support (3) is located in the slot (11), and the side support (4) abuts against the left and right sides of the precast wall (1). There are also pre-embedded steel bars (21) extending upward between each inner support (3) on the mounting base (2).

2. The quick positioning connection node for fabricated building according to claim 1, characterized in that, The mounting base (2) has a second embedded sleeve (22) for installing the inner support (3).

3. The quick positioning connection node for fabricated building according to claim 2, characterized in that, The mounting base (2) is also pre-embedded with a third pre-embedded sleeve (23) for installing the side support (4).

4. The quick positioning connection node for fabricated building according to claim 3, characterized in that, The inner support (3) includes an inner bottom plate (31) and an inner vertical plate (32) that are perpendicular to each other. The bottom end of the inner vertical plate (32) is fixed to the middle of the upper surface of the inner bottom plate (31). The inner bottom plate (31) has two first through holes (311) located on both sides of the inner vertical plate (32) and is bolted to the second pre-embedded sleeve (22). The inner vertical plate (32) has a second through hole (321) located at the center of the inner vertical plate (32).

5. The quick positioning connection node for prefabricated building according to claim 4, characterized in that, The second through hole (321) is coaxial with the first embedded sleeve (12), and the bolt passes through the first embedded sleeve (12) and the second through hole (321).

6. The quick positioning connection node for prefabricated building according to claim 5, characterized in that, The side support (4) includes a side base plate (41), a side upright plate (42), and a connecting plate (43); the side base plate (41) and the side upright plate (42) are fixedly connected to form an L-shaped structure; the connecting plate (43) is a triangular plate with two right-angled sides fixed to the side base plate (41) and the side upright plate (42) respectively.

7. The quick positioning connection node for prefabricated building according to claim 6, characterized in that, The side bottom plate (41) has a third through hole (411) and is bolted to the third embedded sleeve (23).

8. The quick positioning connection node for prefabricated building according to claim 7, characterized in that, The precast wall (1) has pre-embedded steel rings (14) extending from its side.

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