Post-cast strip inner support structure

Abstract

The utility model discloses a post-cast strip inner supporting structure which comprises inner supporting frame sets symmetrically arranged on the two sides, each inner supporting frame set comprises a plurality of inner supporting steel frames which can be mutually spliced for use, a reinforcing mesh is arranged between every two symmetrically-arranged inner supporting steel frames, the reinforcing mesh comprises a plurality of transverse reinforcing steel bars and longitudinal reinforcing steel bars, and the transverse reinforcing steel bars and the longitudinal reinforcing steel bars are perpendicularly arranged in a staggered mode. The ends, away from each other, of the inner supporting steel frames at the two ends are connected with positioning blocks, mounting holes are formed in the inner sides of the positioning blocks, and positioning fixing rods are arranged on the inner sides of the mounting holes. By arranging the first butt joint protrusions and the first butt joint grooves, a plurality of inner supporting steel frames can be conveniently spliced, assembled and used so as to improve the installation efficiency of the inner supporting structure, meanwhile, the length of the inner supporting structure can be controlled according to the difference of the number of the assembled inner supporting steel frames, and therefore adaptability is improved, consistency of the plurality of inner supporting steel frames is high, and the inner supporting steel frames are convenient to assemble and use. And one or more inner supporting steel frames can be replaced or maintained conveniently, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a post-cast strip internal support structure. Background Technology

[0002] Post-pouring strips are concrete strips left at appropriate locations in foundation slabs, walls, and beams during building construction to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement, as required by design or construction specifications. The term "post-pouring strip without formwork removal or roughening" means that no formwork removal or roughening treatment is required after concrete pouring. The purpose of this technology is to simplify the construction process, improve efficiency, and reduce damage to the concrete surface.

[0003] A search revealed that Chinese patent application number CN20202202984262.9 discloses a post-cast strip internal support structure. This utility model includes a water-stop, non-chiseling end-forming mesh, a reinforcing bar backing mesh, and a steel internal support frame. The water-stop, non-chiseling end-forming mesh is installed on opposite side walls of the post-cast strip. The reinforcing bar backing mesh is fixed to the water-stop, non-chiseling end-forming mesh, with a reinforcing bar backing mesh fixed to each water-stop, non-chiseling end-forming mesh. The steel internal support frame is installed inside the post-cast strip, with its two sides respectively supporting and fixed to the reinforcing bar backing mesh on opposite side walls of the post-cast strip. This utility model's post-cast strip non-removable, non-chiseling steel internal support structure provides permanent, one-time formwork support. No formwork removal is required after concrete molding, and no roughing of concrete joints is necessary; only simple cleaning is required. This reduces the consumption of reusable materials, reduces waste generation, and is energy-saving and environmentally friendly. This utility model can be used in construction projects where civil defense requirements dictate that reinforcing bars cannot be cut or where the joints are extremely deep and narrow.

[0004] However, the existing technology and the device still have the following drawbacks:

[0005] However, existing steel internal support structures are usually integrated. Because the internal support structure of the steel is too long, it is inconvenient to install, which reduces the installation efficiency and stability.

[0006] Based on this, those skilled in the art have proposed a post-cast strip internal support structure, which provides a new solution to the above-mentioned technical problems. Utility Model Content

[0007] Based on this, it is necessary to provide a post-cast strip internal support structure to address the problems raised in the background art. By setting up components such as a first internal support steel frame, a second internal support steel frame, a connecting groove, and a connecting block, the internal support structure of the steel profile can be spliced ​​and assembled, thereby improving the efficiency of the internal support structure installation and enabling internal support to be performed without demolding or roughening the steel profile during use.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] The post-cast strip internal support structure specifically includes internal support frame groups symmetrically arranged on both sides. Each internal support frame group includes several internal support steel frames that can be spliced ​​together. A steel mesh is provided between the two symmetrically arranged internal support steel frames. The steel mesh includes several transverse steel bars and longitudinal steel bars arranged perpendicularly to each other. A positioning block is connected to one end of the internal support steel frames located at both ends that are far apart from each other. An installation hole is opened on the inner side of the positioning block, and a positioning fixing rod is provided on the inner side of the installation hole.

[0010] Preferably, one end of the inner support steel frame is provided with a docking protrusion, and the end of the inner support steel frame away from the docking protrusion is provided with a docking groove that matches the docking protrusion. Adjacent inner support steel frames are spliced ​​together by the cooperation of the docking protrusion and the docking groove.

[0011] Preferably, the inner side of the first docking protrusion is provided with a plurality of first connecting holes, and the two sides of the first docking groove are provided with a plurality of second connecting holes that match the first connecting holes. When the first docking protrusion is inserted into the inner side of the first docking groove, the inner side of the corresponding first connecting hole and the second connecting hole is provided with a second connecting screw. The second connecting screw is threadedly connected to the first docking protrusion through the first connecting hole.

[0012] Preferably, one end of the positioning block has a second docking groove that matches the first docking protrusion, and the other end of the positioning block away from the second docking groove has a second docking protrusion that matches the first docking groove. The second docking groove has fourth connecting holes on both sides that match the first connecting hole, and the second docking protrusion has a third connecting hole on its inner side that matches the second connecting hole. When the second docking groove is installed on the outer side of the first docking protrusion, a first connecting screw is provided on the inner side of the corresponding fourth connecting hole and the first connecting hole. The first connecting screw is threadedly connected to the first docking protrusion through the first connecting hole. When the second docking protrusion is installed on the inner side of the first docking groove, a third connecting screw is provided on the inner side of the corresponding third connecting hole and the second connecting hole. The third connecting screw is threadedly connected to the second docking protrusion through the third connecting hole.

[0013] Preferably, a limiting block is fixed on the positioning block and located at the bottom of the inner side of the second docking groove, and the top end face of the limiting block abuts against the bottom end face of the first docking protrusion located inside it.

[0014] Preferably, the bottom of the inner support steel frame is provided with a water-stop steel plate, and the inner sides of both ends of the bottom of the inner support steel frame are provided with fixing grooves. The top ends of the water-stop steel plate are fixed with fixing blocks that match the corresponding fixing grooves. The water-stop steel plate is engaged with the inner support steel frame through the cooperation of the fixing blocks and the fixing grooves.

[0015] Preferably, the inner support steel frame has several auxiliary connection holes through its side surface.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model facilitates the splicing and assembly of multiple inner support steel frames by setting a docking protrusion and a docking groove, thereby improving the efficiency of the inner support structure installation. At the same time, the length of the inner support structure can be controlled by different numbers of assembled inner support steel frames, thereby improving adaptability. Furthermore, the consistency among multiple inner support steel frames is high, making it easy to replace or repair one or more inner support steel frames, thus improving the convenience of use.

[0018] 2. This utility model uses positioning blocks, positioning and fixing rods, and mounting holes to facilitate the positioning and fixing of multiple internal support steel frames during installation, thereby improving the accuracy of the steel internal support structure installation and thus enhancing the stability of the steel internal support structure installation.

[0019] 3. By setting two docking protrusions and two docking grooves, this utility model facilitates the installation and disassembly of the positioning block, thus improving the flexibility of use. Attached Figure Description

[0020] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the axial structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the axial structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the exploded structure of this utility model. Figure 1 ;

[0024] Figure 4 This is a structural schematic diagram of the internal support steel frame and positioning block of this utility model;

[0025] Figure 5 This is a schematic diagram of the exploded structure of this utility model. Figure 2 .

[0026] The markings in the diagram are explained as follows:

[0027] 1. Internal support steel frame; 2. Horizontal reinforcing bars; 3. Longitudinal reinforcing bars; 4. Auxiliary connection holes; 5. Positioning block; 6. Positioning fixing rod; 7. Water-stop steel plate; 8. Butt joint protrusion one; 9. Butt joint groove one; 10. First connection hole; 11. Second connection hole; 12. Butt joint groove two; 13. Butt joint protrusion two; 14. Third connection hole; 15. Fourth connection hole; 16. Connecting screw one; 17. Limiting block; 18. Fixing groove; 19. Mounting hole; 20. Connecting screw two; 21. Fixing block; 22. Connecting screw three. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-5 The present invention provides a post-cast strip internal support structure comprising symmetrically arranged internal support frame assemblies on both sides. Each internal support frame assembly includes several internal support steel frames 1 that can be spliced ​​together. A steel mesh is provided between the two symmetrically arranged internal support steel frames 1. The steel mesh includes several transverse steel bars 2 and longitudinal steel bars 3 arranged perpendicularly and intersectingly. A positioning block 5 is connected to one end of the internal support steel frames 1 that is far apart from each other. An installation hole 19 is provided on the inner side of the positioning block 5, and a positioning fixing rod 6 is provided on the inner side of the installation hole 19. Specifically, multiple internal support steel frames 1 are spliced ​​and assembled to improve the efficiency of internal support structure installation. At the same time, the length of the internal support structure can be controlled by different numbers of assembled internal support steel frames 1, thereby improving adaptability. Moreover, the multiple internal support steel frames 1 have high consistency, making it easy to replace or repair one or more internal support steel frames 1, thus improving the convenience of use.

[0030] It should be noted that the transverse reinforcing bars 2 and the longitudinal reinforcing bars 3 can be welded to each other or detachably connected, and the reinforcing mesh can be welded to or detachably connected to the inner supporting steel frame 1 on both sides.

[0031] By using positioning blocks 5, positioning and fixing rods 6, and mounting holes 19 in combination, multiple internal support steel frames 1 can be positioned and fixed during installation, thereby improving the accuracy of the steel internal support structure installation and its stability. The positioning and fixing rod 6 can be held by hand and fixed at the construction position with one end passing through the mounting hole 19, so that the steel internal support structure can be positioned and fixed, thereby improving the stability of the steel internal support structure installation. In addition, these components can be poured together with the concrete without removing the formwork.

[0032] Please refer to Figure 4 One end of the inner support steel frame 1 is provided with a docking protrusion 8, and the end of the inner support steel frame 1 away from the docking protrusion 8 is provided with a docking groove 9 that matches the docking protrusion 8. Adjacent inner support steel frames 1 are spliced ​​together by the cooperation of the docking protrusion 8 and the docking groove 9. Specifically, by the cooperation of the docking protrusion 8 and the docking groove 9, several inner support steel frames 1 can be spliced ​​together for use, or the inner support steel frames 1 can be disassembled, which improves the efficiency of the installation of the inner support structure.

[0033] Please refer to Figure 4 The inner side of the mating protrusion 8 is provided with several first connecting holes 10, and the two sides of the mating groove 9 are provided with several second connecting holes 11 that match the first connecting holes 10. When the mating protrusion 8 is inserted into the inner side of the mating groove 9, the inner side of the corresponding first connecting hole 10 and second connecting hole 11 is provided with connecting screw 20. The connecting screw 20 is threadedly connected to the mating protrusion 8 through the first connecting hole 10. Specifically, the setting of the connecting screw 20 can make the connection between the two inner support steel frames 1 more stable and reliable, thereby improving the stability of the inner support structure.

[0034] Please refer to Figure 4One end of the positioning block 5 has a second mating groove 12 that matches the first mating protrusion 8. The other end of the positioning block 5 away from the second mating groove 12 has a second mating protrusion 13 that matches the first mating groove 9. The second mating groove 12 has fourth connecting holes 15 on both sides that match the first connecting hole 10. The inner side of the second mating protrusion 13 has a third connecting hole 14 that matches the second connecting hole 11. When the second mating groove 12 is installed on the outside of the first mating protrusion 8, the corresponding fourth connecting hole 15 and the inner side of the first connecting hole 10 have connecting screws 16. The connecting screws 16 are threadedly connected to the first mating protrusion 8 through the first connecting hole 10. When the second mating protrusion 13 is installed on the inside of the first mating groove 9, the corresponding third connecting hole 14 and the inner side of the second connecting hole 11 have connecting screws 22. The connecting screws 22 are threadedly connected to the second mating protrusion 13 through the third connecting hole 14. Specifically, in this embodiment, to improve the uniformity of the parts, the connecting screw 16, connecting screw 22, and connecting screw 20 can be of the same type, so that they can be used interchangeably among the mating protrusion 8, mating groove 9, third connecting hole 14, and fourth connecting hole 15. When installing the positioning block 5, the mating groove 22 on one end of the positioning block 5 can be sleeved on the outside of the corresponding mating protrusion 8, so that the central axis of the corresponding fourth connecting hole 15 coincides with the central axis of the first connecting hole 10. Then, the positioning block 5 and the mating protrusion 8 are fastened together by the connecting screw 16. The mating protrusion 23 on the other end of the positioning block 5 is inserted into the inside of the corresponding mating groove 9, so that the central axis of the corresponding third connecting hole 14 coincides with the central axis of the second connecting hole 11. The corresponding mating protrusion 23 and the mating groove 9 are fastened together by the connecting screw 22.

[0035] When installing the steel internal support structure, the operator takes the internal support steel frame 1 and places it at the concrete construction location. Then, the operator takes another internal support steel frame 1 and fixes the connecting block protrusion-8 on one end to the corresponding connecting groove-9 inside, so that the two internal support steel frames 1 are connected and fixed together.

[0036] It should be noted that, in another embodiment, the positioning block 5 can be directly welded to the inner support steel frame 1 at both ends.

[0037] Please refer to Figure 1-5 A limiting block 17 is fixed on the positioning block 5 and located at the bottom of the inner side of the docking groove 12. The top end face of the limiting block 17 abuts against the bottom end face of the docking protrusion 8 located inside it. The setting of the limiting block 17 makes it easy to quickly position the positioning block 5 when the positioning block 5 is sleeved on the docking protrusion 8.

[0038] Please refer to Figure 1-5The bottom of the inner support steel frame 1 is provided with a water-stop steel plate 7. The inner sides of both ends of the bottom of the inner support steel frame 1 are provided with fixing grooves 18. The top ends of the water-stop steel plate 7 are fixed with fixing blocks 21 that match the corresponding fixing grooves 18. The water-stop steel plate 7 is engaged with the inner support steel frame 1 through the cooperation of the fixing blocks 21 and the fixing grooves 18. Specifically, by setting the fixing grooves 18, fixing blocks 21 and water-stop steel plate 7 and other components together, it is easy to disassemble and install the steel inner support structure. In addition, the setting of the water-stop steel plate 7 can be used to prevent water from seeping through the joints or cracks of the building structure.

[0039] Please refer to Figure 1 Several auxiliary connection holes 4 are provided on one side surface of the inner support steel frame 1. The auxiliary connection holes 4 facilitate the penetration of the internal steel reinforcement inside the concrete after the two ends of the steel inner support structure are poured.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A post-cast strip internal support structure, characterized in that, The device includes symmetrically arranged inner support frame groups on both sides. Each inner support frame group includes several inner support steel frames (1) that can be spliced ​​together. A steel mesh is provided between the two symmetrically arranged inner support steel frames (1). The steel mesh includes several horizontal steel bars (2) and longitudinal steel bars (3) that are arranged perpendicularly to each other. A positioning block (5) is connected to one end of the inner support steel frames (1) that are far apart from each other. An installation hole (19) is provided on the inner side of the positioning block (5). A positioning fixing rod (6) is provided on the inner side of the installation hole (19).

2. The post-cast strip internal support structure according to claim 1, characterized in that, One end of the inner support steel frame (1) is provided with a docking protrusion (8), and the end of the inner support steel frame (1) away from the docking protrusion (8) is provided with a docking groove (9) that is adapted to the docking protrusion (8). Adjacent inner support steel frames (1) are spliced ​​together by the cooperation of the docking protrusion (8) and the docking groove (9).

3. The post-cast strip internal support structure according to claim 2, characterized in that, The inner side of the first docking protrusion (8) is provided with a plurality of first connecting holes (10), and the two sides of the first docking groove (9) are provided with a plurality of second connecting holes (11) that match the first connecting holes (10). When the first docking protrusion (8) is inserted into the inner side of the first docking groove (9), the inner sides of the corresponding first connecting hole (10) and second connecting hole (11) are provided with connecting screws (20). The connecting screws (20) are threadedly connected to the first docking protrusion (8) through the first connecting hole (10).

4. The post-cast strip internal support structure according to claim 3, characterized in that, One end of the positioning block (5) is provided with a second docking groove (12) that matches the first docking protrusion (8). The other end of the positioning block (5) away from the second docking groove (12) is provided with a second docking protrusion (13) that matches the first docking groove (9). The second docking groove (12) is provided with fourth connecting holes (15) that match the first connecting hole (10) on both sides. The second docking protrusion (13) is provided with a third connecting hole (14) that matches the second connecting hole (11) on its inner side. When the second docking groove (12) is installed on the first docking protrusion... (8) When it is on the outside, the corresponding fourth connecting hole (15) and the inner side of the first connecting hole (10) are provided with connecting screw one (16). The connecting screw one (16) is threadedly connected to the first docking protrusion one (8) through the first connecting hole (10). When the second docking protrusion (13) is installed inside the first docking groove (9), the corresponding third connecting hole (14) and the inner side of the second connecting hole (11) are provided with connecting screw three (22). The connecting screw three (22) is threadedly connected to the second docking protrusion (13) through the third connecting hole (14).

5. The post-cast strip internal support structure according to claim 4, characterized in that, A limiting block (17) is fixed on the positioning block (5) and located at the bottom inside the second docking groove (12). The top end face of the limiting block (17) abuts against the bottom end face of the first docking protrusion (8) located inside it.

6. The post-cast strip internal support structure according to claim 1, characterized in that, The bottom of the inner support steel frame (1) is provided with a water-stop steel plate (7). The inner sides of both ends of the bottom of the inner support steel frame (1) are provided with fixing grooves (18). The top ends of the water-stop steel plate (7) are fixed with fixing blocks (21) that match the corresponding fixing grooves (18). The water-stop steel plate (7) is engaged with the inner support steel frame (1) through the cooperation of the fixing blocks (21) and the fixing grooves (18).

7. The post-cast strip internal support structure according to claim 6, characterized in that, The inner support steel frame (1) has several auxiliary connection holes (4) through the side surface.

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