A prefabricated recessed laminated slab joint structure

Abstract

The utility model discloses a prefabricated recess formula superimposed board joint structure, including first joint board, one side of first joint board is provided with second joint board, be equipped with a plurality of first fixed groove on second joint board, be provided with round head block on first fixed groove, one side fixedly connected with fixed plate of round head block, the top surface fixedly connected with rebound board of fixed plate, in the utility model, through with second joint board alignment first joint board, then second joint board along third fixed groove sliding into one, realized the quick reinforcement installation of superimposed board, when not need, can quick detach to facilitate subsequent use, has strengthened the flexibility, has strengthened the scope of application, convenient operation saves manpower, has increased the life, is favorable to long -time use, has strengthened the security, has reduced maintenance cost, has improved the overall stability and anti -seismic performance of structure, has improved construction efficiency, has improved the durability of structure.

Description

Technical Field

[0001] This utility model relates to the technical field of composite slab joint structure, specifically a prefabricated grooved composite slab joint structure. Background Technology

[0002] Precast grooved composite slab joint structure is a structural form used in the field of prefabricated buildings to connect precast composite slabs. The precast grooved composite slab is the basic component of this structure, prefabricated in a factory. The composite slab generally consists of a precast base slab and a post-cast concrete composite layer. Grooves are pre-set at specific locations in the precast grooved composite slab; the shape, size, and position of the grooves are determined according to design requirements. The joint material used to fill the joints of the composite slabs is typically high-performance concrete or mortar. These materials need to have good fluidity, adhesion, and strength to ensure the connection quality at the joint. The grooves on the precast composite slab interlock at the joint. When the composite slab is subjected to external forces, the interlocking between the grooves can resist some shear and tensile forces, preventing relative sliding or separation of the composite slabs at the joint. Precast grooved composite slab joint structure is widely used in various prefabricated buildings, such as floor slabs and roof slabs in residential, office, school, and hospital projects. Especially in buildings with high requirements for structural integrity and connection strength, this structure can demonstrate its unique advantages.

[0003] According to Chinese Patent Publication No. CN206428872U, a closely spaced composite slab belongs to the technical field of building concrete components. It includes two precast base slabs, a cast-in-place floor slab, top reinforcing bars, additional continuous structural bars, truss reinforcement, bottom reinforcing bars, and bottom connecting longitudinal bars at the joints. The precast base slabs have an L-shaped cross-section, i.e., one end has an open slot. The two precast base slabs are symmetrically spliced ​​to form a grooved structure. The bottom connecting longitudinal bars at the joints are located at the bottom of the groove. Bottom reinforcing bars are pre-placed within the precast base slabs near the bottom of the open slot. Concrete is poured above the precast base slabs and within the groove formed by the two precast base slabs to form the composite slab. This invention reduces the overall thickness of the composite slab, thereby reducing production costs, lightening the floor slab's self-weight, and increasing the building's safety and reliability.

[0004] In the above scheme, the longitudinal reinforcement connecting the bottom of the slab at the joint is set at the bottom of the groove, and the bottom reinforcement is pre-placed in the precast base slab close to the bottom of the opening groove. This results in the following disadvantages: the existing composite slab joint structure requires a large number of steel bars for fixing. These steel bars pass through the groove of the composite slab to form a connection and are then welded or grouted. This fixing method is time-consuming and labor-intensive, requiring workers to spend a lot of time installing it. This installation method has poor stability and is prone to cracking. Moreover, it cannot be removed after fixing. If it is no longer needed, it can only be scrapped, which increases the production cost of enterprises, reduces the installation efficiency, greatly increases the labor intensity of workers, increases maintenance costs, and reduces flexibility. Therefore, there is an urgent need for a precast groove-type composite slab joint structure to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated grooved composite slab joint structure to solve the problem in the background art that the composite slab joint structure requires a large number of steel bars for fixing. These steel bars pass through the grooves of the composite slab to form a connection. This fixing method is time-consuming and labor-intensive, requiring workers to spend a lot of time installing it.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated grooved composite slab joint structure, including a first joint plate, a second joint plate provided on one side of the first joint plate, a plurality of first fixing grooves provided on the second joint plate, a round-headed block provided on the first fixing groove, a fixing plate fixedly connected to one side of the round-headed block, a rebound plate fixedly connected to the top surface of the fixing plate, a slider fixedly connected to one side of the fixing plate, and a sliding groove provided on the inner wall of the first fixing groove, the sliding groove being slidably connected to the slider.

[0007] Preferably, the second joint plate is provided with an insert plate, and the insert plate has multiple second fixing grooves.

[0008] Preferably, the first joint plate has a connecting groove. Multiple third fixing grooves are formed on the inner wall of the connecting groove. A telescopic rod is fixedly connected to the top surface of the first joint plate, and a connecting plate is fixedly connected to the telescopic end of the telescopic rod. A spring is fixedly connected to the bottom surface of the connecting plate, and one end of the spring is fixedly connected to the first joint plate. A second square groove is formed on the second joint plate.

[0009] Preferably, the first joint plate has a plurality of second circular grooves, and the bottom surface of the connecting plate is fixedly connected to a plurality of pressure rods, the plurality of pressure rods passing through the second circular grooves.

[0010] Preferably, the second joint plate has a first square groove, a baffle is slidably connected to the first square groove, and the baffle has a threaded hole.

[0011] Preferably, the second joint plate has a first circular groove, the bolt passes through the first circular groove, and the baffle plate is threaded with a bolt.

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

[0013] 1. This utility model discloses a prefabricated grooved composite panel joint structure. By aligning the second joint plate with the first joint plate, the second joint plate slides into the third fixing groove. An insert plate is then inserted into the second square groove, and the insert plate contacts the rounded blocks, pressing them outwards. The insert plate then presses multiple rounded blocks outwards, causing the rounded blocks to move the fixing plate outwards. The fixing plate then moves the rebound plate outwards, achieving rapid and strong fixing of the first and second joint plates. If disassembly is required, the connecting plate can be moved downwards. This causes the connecting plate to retract the telescopic rod, and then the connecting plate moves the spring to retract. This process allows the connecting plate to... Multiple pressure rods are inserted into the second circular groove, and then the multiple pressure rods contact the rebound plate and press it downwards. At this time, the bolt is rotated to remove it, and the baffle is slid upwards in the first square groove. Then the insert plate is moved forward and removed from the second joint plate. At this time, the first joint plate and the second joint plate are quickly contacted and fixed, realizing the rapid reinforcement installation of the composite plate. When not needed, it can be quickly disassembled for subsequent use, which enhances flexibility, expands the scope of application, is convenient to operate and saves manpower, increases service life, is conducive to long-term use, enhances safety, reduces maintenance costs, improves the overall stability and seismic performance of the structure, improves construction efficiency, and improves the durability of the structure. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the round-headed block structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the slider structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the pressure bar structure of this utility model.

[0019] In the diagram: 1. First joint plate; 2. Second joint plate; 3. First fixing groove; 4. Rebound plate; 5. Round head block; 6. Fixing plate; 7. Slider; 8. First square groove; 9. First round groove; 10. Baffle; 11. Bolt; 12. Insert plate; 13. Second fixing groove; 14. Third fixing groove; 15. Second round groove; 16. Pressure rod; 17. Connecting plate; 18. Telescopic rod; 19. Spring; 20. Slide groove; 21. Connecting groove; 22. Second square groove. 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] Please see Figure 1-5 This utility model provides a prefabricated grooved composite panel joint structure, including a first joint plate 1, a second joint plate 2 provided on one side of the first joint plate 1, a plurality of first fixing grooves 3 provided on the second joint plate 2, a round-headed block 5 provided on the first fixing groove 3, a fixing plate 6 fixedly connected to one side of the round-headed block 5, a rebound plate 4 fixedly connected to the top surface of the fixing plate 6, a slider 7 fixedly connected to one side of the fixing plate 6, a sliding groove 20 provided on the inner wall of the first fixing groove 3, the sliding groove 20 being slidably connected to the slider 7, an insert plate 12 provided on the second joint plate 2, a plurality of second fixing grooves 13 provided on the insert plate 12, and a connecting groove 21 provided on the first joint plate 1. Multiple third fixing grooves 14 are provided on the inner wall of the connecting groove 21. A telescopic rod 18 is fixedly connected to the top surface of the first joint plate 1. A connecting plate 17 is fixedly connected to the telescopic end of the telescopic rod 18. A spring 19 is fixedly connected to the bottom surface of the connecting plate 17. One end of the spring 19 is fixedly connected to the first joint plate 1. A second square groove 22 is provided on the second joint plate 2. Multiple second circular grooves 15 are provided on the first joint plate 1. Multiple pressure rods 16 are fixedly connected to the bottom surface of the connecting plate 17. The multiple pressure rods 16 pass through the second circular grooves 15. A first square groove 8 is provided on the second joint plate 2. A baffle 10 is slidably connected to the first square groove 8. A threaded hole is provided on the baffle 10. A first circular groove 9 is provided on the second joint plate 2. A bolt 11 passes through the first circular groove 9. A bolt 11 is threadedly connected to the baffle 10.

[0022] Working principle: By aligning the second joint plate 2 with the first joint plate 1, the second joint plate 2 slides into the third fixing groove 14. Then, the insert plate 12 is inserted into the second square groove 22, and the insert plate 12 contacts the round head block 5, pressing it outwards. The insert plate 12 then presses multiple round head blocks 5 outwards, which in turn move the fixing plate 6 outwards. The fixing plate 6 then moves the rebound plate 4 outwards, and the fixing plate 6 and rebound plate 4 enter the third fixing groove 14. The rebound plate 4 contacts the third fixing groove 14 and is pressed downwards. When the insert plate 12 is fully inserted into the second square groove 22, the rebound plate 4 rebounds and locks into the third fixing groove 14, achieving rapid and strong fixing of the first joint plate 1 and the second joint plate 2. If disassembly is needed, the connecting plate 17 can be moved downwards, which in turn moves the telescopic rod 18. The connection plate 17 retracts, and then the connecting plate 17 drives the spring 19 to retract. At this time, the connecting plate 17 drives multiple pressure rods 16 to insert into the second circular groove 15. Then, the multiple pressure rods 16 contact the rebound plate 4 and press it downward. At this time, the bolt 11 rotates and removes the baffle 10, which slides upward into the first square groove 8. Then, the insert plate 12 moves forward and is removed from the second joint plate 2. At this time, the first joint plate 1 and the second joint plate 2 are quickly contacted and fixed, realizing the rapid reinforcement installation of the composite plate. When not needed, it can be quickly disassembled for subsequent use. The connection is firm, improving work efficiency, saving time, enhancing flexibility, expanding the scope of application, facilitating operation and saving manpower, increasing service life, facilitating long-term use, enhancing safety, reducing maintenance costs, improving the overall stability and seismic performance of the structure, improving construction efficiency, and improving the durability of the structure.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated grooved composite slab joint structure, comprising a first joint plate (1), characterized in that: A second joint plate (2) is provided on one side of the first joint plate (1). The second joint plate (2) has a plurality of first fixing grooves (3). A round head block (5) is provided on the first fixing groove (3). A fixing plate (6) is fixedly connected to one side of the round head block (5). A rebound plate (4) is fixedly connected to the top surface of the fixing plate (6). A slider (7) is fixedly connected to one side of the fixing plate (6). A sliding groove (20) is provided on the inner wall of the first fixing groove (3). The sliding groove (20) is slidably connected to the slider (7).

2. The prefabricated grooved composite slab joint structure according to claim 1, characterized in that: The second joint plate (2) is provided with an insert plate (12), and the insert plate (12) is provided with a plurality of second fixing grooves (13).

3. The prefabricated grooved composite slab joint structure according to claim 1, characterized in that: The first joint plate (1) has a connecting groove (21). The inner wall of the connecting groove (21) has a plurality of third fixing grooves (14). The top surface of the first joint plate (1) is fixedly connected to a telescopic rod (18). The telescopic end of the telescopic rod (18) is fixedly connected to a connecting plate (17). The bottom surface of the connecting plate (17) is fixedly connected to a spring (19). One end of the spring (19) is fixedly connected to the first joint plate (1). The second joint plate (2) has a second square groove (22).

4. The prefabricated grooved composite slab joint structure according to claim 1, characterized in that: The first joint plate (1) has multiple second circular grooves (15), and the bottom surface of the connecting plate (17) is fixedly connected with multiple pressure rods (16), which pass through the second circular grooves (15).

5. The prefabricated grooved composite slab joint structure according to claim 1, characterized in that: The second joint plate (2) has a first square groove (8) and a baffle (10) is slidably connected to the first square groove (8). The baffle (10) has a threaded hole.

6. The prefabricated grooved composite slab joint structure according to claim 1, characterized in that: The second joint plate (2) has a first circular groove (9) and the bolt (11) passes through the first circular groove (9). The baffle (10) is threaded with the bolt (11).

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