Lap joint structure between laminated slabs

Abstract

The utility model relates to the technical field of building construction materials, in particular to a lap joint structure between laminated slabs, which comprises a fixing plate. The outer part of the fixing plate is fixedly connected with the mounting box, the outer part of the fixing plate is provided with the reinforcing assembly, the inner part of the mounting box is rotatably connected with a screw rod, the outer part of the screw rod is fixedly connected with a screwing block, the outer part of the screw rod is in threaded connection with a sliding block, and the inner part of the mounting box is slidably connected with a pushing block; a push rod is fixedly connected outside the push block; according to the device, by rotating the screwing block, the screwing block drives the sliding block outside the screw rod to slide in the mounting box, and the sliding block drives the pushing block to slide in the mounting box, so that the pushing block pushes the limiting block to slide out of the mounting box and enter the clamping plate, and the two reinforcing assemblies are fixed together; and the reinforcing blocks can be fixed conveniently, and deviation during installation of the reinforcing blocks is prevented.

Description

Technical Field

[0001] This utility model relates to the field of building construction materials technology, and in particular to an overlapping structure between composite slabs. Background Technology

[0002] Composite slabs are integral structural members formed by pouring concrete on top of precast slabs to share the load. They offer advantages such as good integrity, high rigidity, and reduced formwork requirements, making them the most commonly used type of floor slab in precast concrete structures. The connection between composite slabs requires secondary on-site pouring to ensure the quality standards of the poured overlapping surfaces. If necessary, manual roughening and the installation of reinforcing bars are required to ensure that the old and new concrete can effectively share the load and work together. Therefore, an overlapping structure between composite slabs is needed.

[0003] According to the patent application published on the patent website (authorization announcement number: CN220080454U), "This utility model discloses a precast concrete composite slab overlapping structure, including composite slabs and connecting members for overlapping between adjacent composite slabs. The joint of the composite slabs is provided with a transition end to prevent water leakage and detachment caused by cracks at the joint between the old and new concrete. The connecting member is provided with a fixing component to reduce the time required for rebar tying and effectively fix its position. A reinforcing member is provided between the transition end and the connecting member. This adds a method to the original precast concrete composite slab overlapping structure that staggers the overlapping surfaces vertically, preventing cracks from penetrating the floor slab and causing water seepage. This makes the joint between the old and new concrete more robust and aesthetically pleasing. Simultaneously, the use of a bracket fixing method replaces some of the traditional rebar tying, reducing the labor intensity of workers and accelerating the construction progress."

[0004] Regarding the above description, the applicant believes the following problems exist: Adding a method to the existing precast concrete composite slab lap structure to stagger the lap surfaces vertically prevents cracks from penetrating the floor slab and causing water seepage, making the joint between the old and new concrete more robust and aesthetically pleasing, and using a bracket fixing method to replace some of the traditional steel reinforcement binding, may result in insecure fixing of the precast concrete composite slabs in the early stages, leading to deviations between the precast concrete composite slabs later on, affecting the construction progress, since this device simply inserts the precast concrete composite slabs together. Utility Model Content

[0005] To overcome the problem that the precast concrete composite slabs may not be firmly fixed in the early stage, which may lead to deviations between the precast concrete composite slabs in the later stage and affect the construction process.

[0006] The technical solution of this utility model is as follows: a lap joint structure between composite plates, including a fixing plate; and also including a mounting box and a reinforcing component. The mounting box is fixedly connected to the outside of the fixing plate, and the reinforcing component is provided on the outside of the fixing plate. A screw is rotatably connected inside the mounting box, a screw block is fixedly connected to the outside of the screw, and a sliding block is threadedly connected to the outside of the screw. A push block is slidably connected inside the mounting box, and a push rod is fixedly connected to the outside of the push block. A spring is provided at the middle position between the outside of the push rod and the inside of the mounting box. A limit block is slidably connected inside the mounting box, and a spring is provided at the middle position between the outside of the limit block and the inside of the mounting box. A snap-fit ​​plate is slidably connected to the outside of the mounting box, and bolts are provided inside the fixing plate.

[0007] Preferably, a through hole is provided at the corresponding position of the mounting box and the sliding block, and the sliding block is slidably connected inside the mounting box.

[0008] Preferably, the snap-fit ​​plate and the limiting block are provided with through holes at corresponding positions, and the limiting block is slidably connected to the inside of the snap-fit ​​plate through the mounting box.

[0009] Preferably, there are two sets of limiting blocks and springs, with the two sets of limiting blocks and springs symmetrically arranged inside the mounting box.

[0010] Preferably, the reinforcement component includes a composite plate disposed outside the fixed plate, a reinforcement block fixedly connected to the outside of the composite plate, an internal steel bar fixedly connected to the outside of the reinforcement block, and an internal steel bar fixedly connected to the inside of the composite plate.

[0011] Preferably, through holes are provided at the corresponding positions of the composite plate and the bolt, and the bolt is threaded into the interior of the composite plate.

[0012] Preferably, multiple sets of reinforcing blocks and reinforcing bars are provided, and multiple sets of reinforcing blocks and reinforcing bars are arrayed on the outside of the composite slab.

[0013] The beneficial effects of this utility model are as follows: by rotating the screw block, the screw block drives the sliding block outside the screw rod to slide inside the mounting box. The sliding block drives the pushing block to slide inside the mounting box, thereby pushing the limiting block out of the mounting box and into the snap-fit ​​plate, thus fixing the two sets of reinforcing components together. This is beneficial for fixing the reinforcing block and preventing deviation during the installation of the reinforcing block. Attached Figure Description

[0014] Figure 1 The diagram shown is a schematic representation of the overall structure of an inter-laminated plate joint structure according to this utility model.

[0015] Figure 2 The diagram shown is a structural schematic of a fixing component for an inter-laminated plate overlapping structure according to this utility model.

[0016] Figure 3 What is shown is Figure 2 A magnified structural diagram of point A;

[0017] Figure 4 The diagram shown is a structural schematic of a reinforcement component for the inter-laminated plate joint structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Fixing plate; 21. Mounting box; 22. Screw; 23. Sliding block; 24. Tightening block; 25. Pushing block; 26. Push rod; 27. Spring 1; 28. Limiting block; 29. ​​Spring 2; 210. Bolt; 211. Snap-fit ​​plate; 31. Reinforcing block; 32. Reinforcing steel bar; 33. Internal steel bar; 34. Composite plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figures 1-4A composite slab overlapping structure includes a fixing plate 1; it also includes a mounting box 21 and a reinforcing component. The mounting box 21 is fixedly connected to the outside of the fixing plate 1, and the reinforcing component is provided on the outside of the fixing plate 1. A screw 22 is rotatably connected inside the mounting box 21, a screw block 24 is fixedly connected to the outside of the screw 22, and a sliding block 23 is threadedly connected to the outside of the screw 22. A push block 25 is slidably connected inside the mounting box 21, and a push rod 26 is fixedly connected to the outside of the push block 25. The outside of the push rod 26 is connected to the mounting box 21. A spring 27 is located at the center of the interior of the housing 21. A limit block 28 is slidably connected inside the housing 21. A spring 29 is located at the center of the interior of the housing 21, connecting the limit block 28 to the outside. A snap-fit ​​plate 211 is slidably connected to the outside of the housing 21. Bolts 210 are located inside the fixing plate 1. By connecting the housing 21 and the snap-fit ​​plate 211 with the bolts 210 inside the fixing plate 1 all on the outside of the reinforcing components, the housing 21 is then inserted into the snap-fit ​​plate 211. By rotating the screw block 24, the screw block 24 drives the sliding block 23 outside the screw 22 to slide inside the mounting box 21. The sliding block 23 drives the pushing block 25 to slide inside the mounting box 21, thereby pushing the limiting block 28 out of the mounting box 21 and into the snap-fit ​​plate 211, thus fixing the two sets of reinforcing components together. A through hole is provided at the corresponding position of the mounting box 21 and the sliding block 23, and the sliding block 23 is slidably connected inside the mounting box 21. Because the mounting box 21 is provided... This facilitates the provision of an installation base for other components; through holes are provided at the corresponding positions of the snap-fit ​​plate 211 and the limiting block 28, and the limiting block 28 slides through the mounting box 21 and is connected to the inside of the snap-fit ​​plate 211. The snap-fit ​​plate 211 facilitates connection with the mounting box 21; two sets of limiting blocks 28 and springs 29 are provided, and the two sets of limiting blocks 28 and springs 29 are symmetrically arranged inside the mounting box 21. The springs 29 facilitate the pushing of the limiting blocks 28 back into the mounting box 21.

[0021] Please see Figure 4 In this embodiment, the reinforcing component includes a composite plate 34, which is disposed outside the fixing plate 1. A reinforcing block 31 is fixedly connected to the outside of the composite plate 34, and an internal reinforcing bar 33 is fixedly connected to the outside of the reinforcing block 31. An internal reinforcing bar 33 is fixedly connected inside the composite plate 34. The presence of the internal reinforcing bar 33 facilitates the connection of the composite plate 34. Through holes are provided at the corresponding positions of the composite plate 34 and the bolt 210. The bolt 210 is threadedly connected inside the composite plate 34. The presence of the bolt 210 facilitates the fixing of the mounting box 21 to the outside of the composite plate 34. Multiple sets of reinforcing blocks 31 and reinforcing bars 32 are arranged in an array outside the composite plate 34. The presence of reinforcing bars 32 and reinforcing blocks 31 facilitates the reinforcement of the composite plate 34.

[0022] During operation, by rotating the screw block 24, the screw block 24 drives the sliding block 23 outside the screw 22 to slide inside the mounting box 21. The sliding block 23 drives the pushing block 25 to slide inside the mounting box 21, thereby pushing the limiting block 28 out of the mounting box 21 and into the snap-fit ​​plate 211, thus fixing the two sets of reinforcing components together. By providing reinforcing blocks 31 and reinforcing bars 32 on the outside of the composite plate 34, the quality of the composite plate 34 is improved.

[0023] Through the above steps, by rotating the screw block 24, the screw block 24 drives the sliding block 23 outside the screw 22 to slide inside the mounting box 21. The sliding block 23 drives the pushing block 25 to slide inside the mounting box 21, thereby pushing the limiting block 28 out of the mounting box 21 and into the snap-fit ​​plate 211, thus fixing the two sets of reinforcing components together, which is beneficial for fixing the reinforcing block 31 and preventing deviation during the installation of the reinforcing block 31.

[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A lap joint structure between composite slabs, comprising a fixing plate (1); characterized in that: It also includes a mounting box (21) and a reinforcing component. The mounting box (21) is fixedly connected to the outside of the fixing plate (1). The reinforcing component is provided on the outside of the fixing plate (1). The screw (22) is rotatably connected inside the mounting box (21). The screw (22) is fixedly connected to the outside of the screw (22). The screw (22) is threadedly connected to the outside of the screw (22). The push block (25) is slidably connected inside the mounting box (21). The push rod (26) is fixedly connected to the outside of the push block (25). A spring (27) is provided at the middle position between the outside of the push rod (26) and the inside of the mounting box (21). A limit block (28) is slidably connected inside the mounting box (21). A spring (29) is provided at the middle position between the outside of the limit block (28) and the inside of the mounting box (21). A snap-fit ​​plate (211) is slidably connected to the outside of the mounting box (21). A bolt (210) is provided inside the fixing plate (1).

2. The overlapping structure between composite slabs according to claim 1, characterized in that: Through holes are provided at corresponding positions of the mounting box (21) and the sliding block (23), and the sliding block (23) is slidably connected inside the mounting box (21).

3. The overlapping structure between composite slabs according to claim 1, characterized in that: Through holes are provided at corresponding positions of the snap-fit ​​plate (211) and the limiting block (28), and the limiting block (28) slides through the mounting box (21) and is connected to the inside of the snap-fit ​​plate (211).

4. The overlapping structure between composite slabs according to claim 1, characterized in that: There are two sets of limit blocks (28) and springs (29). The two sets of limit blocks (28) and springs (29) are symmetrically arranged inside the mounting box (21).

5. The overlapping structure between composite slabs according to claim 1, characterized in that: The reinforcement component includes a composite plate (34), which is disposed outside the fixed plate (1). A reinforcement block (31) is fixedly connected to the outside of the composite plate (34), and an internal steel bar (33) is fixedly connected to the outside of the reinforcement block (31). An internal steel bar (33) is fixedly connected to the inside of the composite plate (34).

6. The overlapping structure between composite slabs according to claim 5, characterized in that: Through holes are provided at the corresponding positions of the composite plate (34) and the bolt (210), and the bolt (210) is threaded into the interior of the composite plate (34).

7. The overlapping structure between composite slabs according to claim 6, characterized in that: There are multiple sets of reinforcing blocks (31) and reinforcing bars (32), and multiple sets of reinforcing blocks (31) and reinforcing bars (32) are arranged on the outside of the composite slab (34).

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