A prefabricated composite slab connection structure

Abstract

This utility model discloses a precast composite slab connection structure, comprising: a precast composite slab body, with slots provided around both sides of the precast composite slab body, and docking cylinders fixedly connected to both ends of both sides of the precast composite slab body, the inner cavity of the docking cylinders being provided with annular grooves; docking plates disposed on both sides of the precast composite slab body, with docking rods fixedly connected to both ends of the docking plates, and receiving holes provided around the circumference of the docking rods, the surfaces of the receiving holes being slidably connected with pins. This utility model, through the arrangement of slots, docking cylinders, annular grooves, docking plates, docking rods, adjusting screws, pushing sleeves, receiving holes, and pins, greatly facilitates the rapid connection of two sets of precast composite slab bodies during installation. The overall operation is convenient and quick, reducing the difficulty of construction work and greatly improving the efficiency of construction work.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a prefabricated composite slab connection structure. Background Technology

[0002] Precast composite slabs are prefabricated building components made by stacking precast concrete base slabs and cast-in-place concrete layers. They combine the construction efficiency of prefabricated structures with the integrity of cast-in-place structures and are widely used in building components such as floor slabs and walls. However, traditional precast composite slabs are usually connected to each other by multiple bolts or on-site welding, which is cumbersome and requires a lot of time and manpower, seriously affecting the efficiency of construction operations. Utility Model Content

[0003] The purpose of this utility model is to provide a precast composite slab connection structure, which has the advantages of facilitating quick connection of precast composite slabs by personnel, making operation convenient and fast, and effectively improving construction efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated composite slab connection structure, comprising:

[0005] The prefabricated composite slab body has slots on all four sides of both sides of the prefabricated composite slab body, and docking cylinders are fixedly connected to both ends of both sides of the prefabricated composite slab body. The inner cavity of the docking cylinder is provided with an annular groove.

[0006] The mating plates are set on both sides of the precast composite slab body. Both ends of the mating plates are fixedly connected to mating rods. Each mating rod has a receiving hole around its perimeter. The surface of the receiving hole is slidably connected to a pin. The surface of the mating rod is threadedly connected to an adjusting screw. The surface of the adjusting screw is fixedly connected to a pushing sleeve. The surface of the pushing sleeve is slidably connected to the inner cavity of the mating rod.

[0007] As a preferred embodiment, the left side of the prefabricated composite slab body is provided with a strip-shaped groove, and the right side of the prefabricated composite slab body is provided with a strip-shaped protrusion.

[0008] As a preferred embodiment, a spring is fixedly connected between the surface of the pin and the surface of the receiving hole.

[0009] As a preferred embodiment, a pre-embedded metal plate is fixedly connected to the top of the prefabricated composite slab body, and supporting stirrups are welded between the tops of the pre-embedded metal plates, with transverse steel bars welded to the surface of the supporting stirrups.

[0010] As a preferred embodiment, reinforcing blocks are fixedly connected between the periphery of the push sleeve and the periphery of the adjusting screw.

[0011] As a preferred embodiment, the docking plate is U-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model, through the design of slots, docking cylinders, annular grooves, docking plates, docking rods, adjusting screws, pushing sleeves, receiving holes, and pins, greatly facilitates the quick connection of two sets of prefabricated composite slabs during installation. The overall operation is convenient and fast, reducing the difficulty of construction work and greatly improving the efficiency of construction work. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram of the left side structure of the prefabricated composite slab body of this utility model;

[0016] Figure 3 This is a top view cross-sectional structural diagram of the docking cylinder of this utility model;

[0017] Figure 4 This is a top view cross-sectional structural diagram of the docking plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the prefabricated composite slab body after connection.

[0019] In the diagram: 1. Precast composite slab body; 2. Strip-shaped protrusion; 3. Embedded metal plate; 4. Slot; 5. Connecting cylinder; 6. Connecting clamp plate; 7. Supporting stirrup; 8. Horizontal reinforcing bar; 9. Strip-shaped groove; 10. Annular groove; 11. Connecting rod; 12. Adjusting screw; 13. Push sleeve; 14. Reinforcing block; 15. Receiving hole; 16. Pin; 17. Spring. Detailed Implementation

[0020] 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.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] The components of this application, such as the precast composite slab body 1, strip protrusion 2, embedded metal plate 3, slot 4, docking cylinder 5, docking clamping plate 6, supporting stirrup 7, transverse steel bar 8, strip groove 9, annular groove 10, docking rod 11, adjusting screw 12, pushing sleeve 13, reinforcing block 14, receiving hole 15, pin 16, and spring 17, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0023] Example 1:

[0024] Please see Figures 1-5 As shown, this utility model provides a prefabricated composite slab connection structure, including:

[0025] The precast composite slab body 1 has slots 4 on all four sides of both sides of the precast composite slab body 1, and docking cylinders 5 are fixedly connected to both ends of both sides of the precast composite slab body 1. The inner cavity of the docking cylinder 5 is provided with annular grooves 10.

[0026] The docking plates 6 are set on both sides of the precast composite slab body 1. Both ends of the docking plates 6 are fixedly connected to docking rods 11. The docking rods 11 are provided with receiving holes 15 around their perimeter. The surfaces of the receiving holes 15 are slidably connected to pins 16. The surfaces of the docking rods 11 are threadedly connected to adjusting screws 12. The surfaces of the adjusting screws 12 are fixedly connected to pushing sleeves 13. The surfaces of the pushing sleeves 13 are slidably connected to the inner cavity of the docking rods 11.

[0027] In this technical solution, when it is necessary to connect two sets of prefabricated composite slab bodies 1, after the sides of the two sets of prefabricated composite slab bodies 1 are aligned, the operator can hold two sets of alignment plates 6 and insert them into the slots 4 on the two sets of prefabricated composite slab bodies 1. At the same time, the two sets of alignment rods 11 on the alignment plates 6 can be inserted into the alignment cylinders 5 on the two sets of prefabricated composite slab bodies 1 respectively, until the alignment plates 6 are in place with the surface of the prefabricated composite slab bodies 1. Then, by using a wrench to operate the adjusting screw 12 to rotate, it moves along the surface of the alignment rods 11, and drives the push sleeve 13 to move. While moving, it can contact the surface of the pin 16 and push the pin 16 along the surface of the receiving hole 15 through the inclined surface until the surface of the pin 16 can be tightly attached to the surface of the annular groove 10, thereby locking and fixing the docking rod 11 and the docking cylinder 5. This effectively prevents the docking rod 11 and the docking plate 6 from coming loose from the surface of the docking cylinder 5 and the slot 4. Under the cooperation of the docking rod 11, the docking plate 6 and the docking cylinder 5, the connection of the two sets of prefabricated composite plate bodies 1 can be effectively limited and fixed, thereby completing the connection operation of the two sets of prefabricated composite plate bodies 1.

[0028] Example 2:

[0029] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, a strip-shaped groove 9 is provided on the left side of the precast composite slab body 1, and a strip-shaped protrusion 2 is provided on the right side of the precast composite slab body 1. A spring 17 is fixedly connected between the surface of the pin 16 and the surface of the receiving hole 15. An embedded metal plate 3 is fixedly connected to the top of the precast composite slab body 1. A supporting hoop 7 is welded between the tops of the embedded metal plates 3. A transverse steel bar 8 is welded to the surface of the supporting hoop 7. Reinforcing blocks 14 are fixedly connected between the periphery of the pushing sleeve 13 and the periphery of the adjusting screw 12. The docking plate 6 is U-shaped.

[0030] In this technical solution, the strip groove 9 and strip protrusion 2 are provided so that the strip protrusion 2 can be inserted into the strip groove 9 during the splicing process between the two sets of precast composite slab bodies 1, thereby reducing the probability of leakage during the later concrete pouring process. The spring 17 is provided so that the pin 16 can be retracted into the receiving hole 15 at the beginning of installation under the action of the spring force of the spring 17, so as to prevent the pin 16 from extending and obstructing the connection between the two when the docking rod 11 is inserted into the docking cylinder 5. The embedded metal plate 3, the supporting stirrup 7 and the transverse steel bar 8 are provided to support the slab reinforcement required to be tied during the upper concrete pouring. The reinforcing block 14 is provided to improve the strength of the connection between the push sleeve 13 and the adjusting screw 12.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A precast composite slab connection structure, characterized by, include: The prefabricated composite slab body (1) has slots (4) on all four sides of both sides of the prefabricated composite slab body (1), and docking cylinders (5) are fixedly connected to both ends of both sides of the prefabricated composite slab body (1). The inner cavity of the docking cylinder (5) is provided with an annular groove (10). The docking plates (6) are set on both sides of the precast composite slab body (1). Both ends of the docking plates (6) are fixedly connected to docking rods (11). The docking rods (11) are provided with receiving holes (15) around their perimeter. The surface of the receiving holes (15) is slidably connected to pins (16). The surface of the docking rods (11) is threadedly connected to adjusting screws (12). The surface of the adjusting screws (12) is fixedly connected to pushing sleeves (13). The surface of the pushing sleeves (13) is slidably connected to the inner cavity of the docking rods (11).

2. The prefabricated composite slab connecting structure according to claim 1, characterized in that: The prefabricated composite slab body (1) has a strip-shaped groove (9) on the left side and a strip-shaped protrusion (2) on the right side.

3. The prefabricated composite slab connection structure according to claim 1, characterized in that: A spring (17) is fixedly connected between the surface of the pin (16) and the surface of the receiving hole (15).

4. The prefabricated composite slab connecting structure according to claim 1, characterized in that: The top of the precast composite slab body (1) is fixedly connected to an embedded metal plate (3), and a supporting stirrup (7) is welded between the tops of the embedded metal plate (3). A transverse steel bar (8) is welded to the surface of the supporting stirrup (7).

5. The prefabricated laminated slab connecting structure according to claim 4, characterized in that: Reinforcing blocks (14) are fixedly connected around the perimeter of the push sleeve (13) and around the perimeter of the adjusting screw (12).

6. The prefabricated laminated slab connecting structure according to claim 1, characterized in that: The docking plate (6) is U-shaped.

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