Embedded weldless support node structure for precast composite floor

Abstract

The utility model relates to a embedded welding -free support node structure for prefabricated composite floor, including wall, the outside of wall is provided with first support fixed structure, first support fixed structure includes connecting plate, the outside swing joint of wall has connecting plate, the outer surface fixed mounting of connecting plate has hinged link, the top fixed mounting of wall has center pole. This embedded welding -free support node structure for prefabricated composite floor, through the setting of first support fixed structure and second support fixed structure, can make the composite floor main body install between the bottom plate and the cover plate, and through the setting of first bolt cooperation nut reinforcement, through the setting of first support fixed structure can support the fixed composite floor main body and reinforce, avoid the situation of misplacement, thereby can embed the composite floor main body in the device and support fixed in the welding -free condition, thereby and wall installation connection.

Description

Technical Field

[0001] This utility model relates to the field of precast composite floor slab technology, specifically to an embedded, weld-free support node structure for precast composite floor slabs. Background Technology

[0002] Composite precast floor slabs are a type of prefabricated floor slab structure that combines a precast concrete base slab with a cast-in-place concrete layer. The precast base slabs are produced in a standardized manner in the factory, which has advantages such as high flatness and controllable quality. After on-site installation, they are connected by steel bars and cast-in-place concrete to form a whole, combining the advantages of efficient construction of precast components and good integrity of cast-in-place structures.

[0003] A search revealed a connection node structure between a composite floor slab and a precast interior wall, disclosed in Chinese Utility Model Patent Publication No. CN219033719U. This connection node structure, through the T-shaped arrangement of the cast-in-place floor slab, directly connects to the precast wall, enhancing the overall integrity of the connection and ensuring the ability to bear the upper load. The combination of support rods and adjustment rods ensures the support and fixation of the precast floor slab, while the fastening components provide lateral restraint. The use of sleeved fasteners facilitates fine-tuning during connection and adaptability to various support heights. Furthermore, the clamps and inserts allow for convenient installation and disassembly. However, the strength and stability of this connection node structure between the composite floor slab and the precast interior wall are insufficient, and the structure needs optimization. Therefore, an embedded, weld-free support node structure for precast composite floor slabs is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an embedded, weld-free support node structure for precast composite floor slabs, which has advantages such as facilitating the installation and reinforcement of precast composite floor slabs and solves the problem that existing support nodes need to be optimized.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an embedded, weld-free support node structure for prefabricated composite floor slabs, comprising a wall, a composite floor slab body being disposed outside the wall, a first support fixing structure being disposed outside the wall, and a second support fixing structure being disposed outside the wall; The first supporting and fixing structure includes a connecting plate, which is movably connected to the outside of the wall. A hinge rod is fixedly installed on the outer surface of the connecting plate. A center rod is fixedly installed on the top of the wall. A limit block is fixedly installed on the top of the wall. A limit plate is fixedly installed on the top of the wall. A plug sleeve is fixedly installed on the top of the wall. A snap ring is fixedly installed inside the plug sleeve. A base plate is movably connected to the top of the wall.

[0006] Furthermore, the second support and fixing structure includes a cover plate, which is movably connected to the top of the base plate. A first bolt is threaded into the inside of the cover plate, and a nut is threaded into the outer surface of the first bolt. A plug rod is fixedly installed on the top of the cover plate.

[0007] Furthermore, the second support and fixing structure includes a cover plate, which is movably connected to the top of the base plate. A first bolt is threaded into the inside of the cover plate, and a nut is threaded into the outer surface of the first bolt. A plug rod is fixedly installed on the top of the cover plate.

[0008] Furthermore, four limiting blocks are fixedly installed on the top of the wall, four limiting plates are fixedly installed on the top of the wall, the four limiting plates are respectively located between the four limiting blocks, eight plug-in sleeves are fixedly installed on the top of the wall, the snap-fit ​​rings are made of elastic plastic material, there are sixteen snap-fit ​​rings, eight of which are fixedly installed inside the eight plug-in sleeves, and the bottom plate has through holes inside.

[0009] Furthermore, the cover plate and the bottom plate each have four mounting slots inside, the cover plate has a center hole that matches the center rod inside, and the cover plate has a limiting hole that matches the four limiting blocks inside.

[0010] Furthermore, there are four first bolts, and each of the four first bolts has a nut threaded onto its outer surface. There are eight plug rods, and the other eight snap rings are respectively fixedly installed on the outer surface of the eight plug rods.

[0011] Beneficial effects

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects: This embedded, weld-free support node structure for prefabricated composite floor slabs, through the setting of a first support fixing structure and a second support fixing structure, enables the composite floor slab body to be installed between the base plate and the cover plate, and is reinforced by the first bolt and nut. Then, the first support fixing structure can support and reinforce the fixed composite floor slab body to prevent misalignment. Thus, the composite floor slab body can be embedded into the device and supported and fixed without welding, thereby connecting it to the wall for installation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the partial first support fixing structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the base plate of this utility model; Figure 3 This is a partial frontal sectional view of the present invention. Figure 4 This is a top view of the structure of this utility model; Figure 5 This is a top view of the wall structure of this utility model.

[0014] In the diagram: 1. Wall; 2. Composite floor slab main body; 3. First support fixing structure; 301. Connecting plate; 302. Hinge rod; 303. Center rod; 304. Limiting block; 305. Limiting plate; 306. Insertion sleeve; 307. Snap ring; 308. Base plate; 4. Second support fixing structure; 401. Cover plate; 402. First bolt; 403. Nut; 404. Insertion rod. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 An embedded, weld-free support node structure for prefabricated composite floor slabs includes a wall 1, a composite floor slab body 2 disposed on the outside of the wall 1, a first support fixing structure 3 disposed on the outside of the wall 1, and a second support fixing structure 4 disposed on the outside of the wall 1. The first supporting and fixing structure 3 includes a connecting plate 301. The connecting plate 301 is movably connected to the outside of the wall 1. A hinge rod 302 is fixedly installed on the outer surface of the connecting plate 301. A center rod 303 is fixedly installed on the top of the wall 1. A limit block 304 is fixedly installed on the top of the wall 1. A limit plate 305 is fixedly installed on the top of the wall 1. A plug sleeve 306 is fixedly installed on the top of the wall 1. A snap ring 307 is fixedly installed inside the plug sleeve 306. A base plate 308 is movably connected to the top of the wall 1.

[0017] Furthermore, the second support and fixing structure 4 includes a cover plate 401, the top of the base plate 308 is movably connected to the cover plate 401, the inner thread of the cover plate 401 is connected to the first bolt 402, the outer surface of the first bolt 402 is connected to the nut 403, and the top of the cover plate 401 is fixedly installed with a plug rod 404.

[0018] Specifically, such as Figure 3As shown, when installation is required, the base plate 308 is placed on top of the wall 1. The center rod 303 and the limiting block 304 will pass through the through hole opened in the base plate 308. Then, the connecting plate 301 is installed on the front, back, left and right sides of the wall 1 and the bottom of the base plate 308 respectively through the connecting plate 301 and the second bolt. The bottom of the base plate 308 is supported by the hinge rod 302. Thus, after the composite floor slab body 2 is installed, it provides auxiliary support for the composite floor slab body 2.

[0019] Specifically, such as Figure 1 and Figure 3 As shown, after the base plate 308 is installed, the composite floor slab body 2 is placed into the installation groove opened in the base plate 308, and the center hole and limiting hole opened in the cover plate 401 are aligned with the limiting block 304 and the center rod 303 and then closed. After closing, the cover plate 401 and the base plate 308 can be installed by using the first bolt 402 and the bolt.

[0020] Specifically, such as Figure 1 and Figure 3 As shown, during the closing of the cover plate 401 and the bottom plate 308, the plug rod 404 will penetrate through the composite floor slab body 2 and drive the eight snap rings 307 to be inserted into the corresponding plug sleeves 306. The special material of the snap rings 307 limits the mechanical energy of the composite floor slab body 2, thereby assisting in the installation and fixing of the composite floor slab body 2.

[0021] In summary, the embedded, weld-free support node structure for prefabricated composite floor slabs, through the setting of the first support fixing structure 3 and the second support fixing structure 4, enables the composite floor slab body 2 to be installed between the base plate 308 and the cover plate 401, and is reinforced by the first bolt 402 and the nut 403. Then, the setting of the first support fixing structure 3 can support and reinforce the fixed composite floor slab body 2 to avoid misalignment. Thus, the composite floor slab body 2 can be embedded into the device and supported and fixed without welding, thereby connecting it to the wall 1.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An embedded, weld-free support node structure for precast composite floor slabs, comprising a wall (1), characterized in that: The exterior of the wall (1) is provided with a composite floor slab body (2), the exterior of the wall (1) is provided with a first support and fixing structure (3), and the exterior of the wall (1) is provided with a second support and fixing structure (4). The first support and fixing structure (3) includes a connecting plate (301), the wall (1) is movably connected to the outside of the connecting plate (301), a hinge rod (302) is fixedly installed on the outer surface of the connecting plate (301), a center rod (303) is fixedly installed on the top of the wall (1), a limit block (304) is fixedly installed on the top of the wall (1), a limit plate (305) is fixedly installed on the top of the wall (1), a plug sleeve (306) is fixedly installed on the top of the wall (1), a snap ring (307) is fixedly installed inside the plug sleeve (306), and a base plate (308) is movably connected to the top of the wall (1).

2. The embedded weld-free support node structure for precast composite floor slabs according to claim 1, characterized in that: The second support and fixing structure (4) includes a cover plate (401), the top of the base plate (308) is movably connected to the cover plate (401), the inner thread of the cover plate (401) is connected to a first bolt (402), the outer surface of the first bolt (402) is connected to a nut (403), and the top of the cover plate (401) is fixedly installed with a plug rod (404).

3. The embedded weld-free support node structure for precast composite floor slabs according to claim 1, characterized in that: The number of connecting plates (301) is eight, and four hinge rods (302) are fixedly installed between the eight connecting plates (301).

4. The embedded weld-free support node structure for precast composite floor slabs according to claim 1, characterized in that: The top of the wall (1) is fixedly equipped with four limiting blocks (304), and the top of the wall (1) is fixedly equipped with four limiting plates (305). The four limiting plates (305) are respectively located between the four limiting blocks (304). The top of the wall (1) is fixedly equipped with eight plug sleeves (306). The snap rings (307) are made of elastic plastic material. There are sixteen snap rings (307), of which eight snap rings (307) are fixedly installed inside the eight plug sleeves (306). The bottom plate (308) has through holes inside.

5. The embedded weld-free support node structure for precast composite floor slabs according to claim 2, characterized in that: The cover plate (401) and the base plate (308) are both provided with four mounting slots. The cover plate (401) is provided with a center hole that matches the center rod (303). The cover plate (401) is provided with a limiting hole that matches the four limiting blocks (304).

6. The embedded weld-free support node structure for precast composite floor slabs according to claim 2, characterized in that: There are four first bolts (402), and each of the four first bolts (402) has a nut (403) threaded onto its outer surface. There are eight plug rods (404), and eight snap rings (307) are fixedly installed on the outer surface of the eight plug rods (404).

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