Chiseling-free template for post-cast strip construction

Abstract

The utility model discloses a chiseling-free template for post-cast strip construction, which comprises an upper template and a lower template, the upper template and the lower template are distributed up and down in a mirror image manner by taking a buried water stop steel plate as a symmetry axis, and the upper edge of the upper template and the lower edge of the lower template are respectively provided with a plurality of zigzag tooth openings. The reinforcing steel bars can be inserted into the saw-tooth-shaped tooth openings; a plurality of grooves are formed in the surfaces of the sides, facing to-be-poured concrete, of the upper formwork and the lower formwork correspondingly and used for making the surfaces of the concrete have dents after the concrete is poured and solidified. Compared with a formwork for post-cast strip construction in the prior art, the chiseling-free formwork for post-cast strip construction has the advantages that a plurality of steel wire meshes do not need to be arranged for blocking, meanwhile, the formwork can be rapidly assembled, construction operation can be conducted, the construction efficiency is high, and it is not needed to spend a large amount of time for chiseling in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of post-casting strip construction, in particular to a template for post-casting strip construction which can avoid chiseling. Background Art

[0002] During main structure construction, to prevent cracks due to shrinkage or uneven settlement, multiple post-cast strips are installed to divide the structure into several sections. These sections are then sealed after the shrinkage or settlement stabilizes. The construction quality of the post-cast strips is directly related to structural safety and waterproofing effectiveness. In existing technology, the post-cast strips of basement roofs contain longitudinal reinforcement and embedded waterstop steel plates. The side forms of the post-cast strips are typically sealed with multiple wire meshes between the longitudinal reinforcement and the waterstop steel plates. The wire meshes are tensioned and fixed in place by a steel frame. This not only consumes a lot of labor during removal, but also makes it difficult to completely remove the steel mesh and the steel frame.

[0003] Therefore, there is an urgent need to develop a template for post-casting strip construction that does not require chiseling. Compared with the template for post-casting strip construction in the existing technology, there is no need to set up multiple wire meshes for sealing. At the same time, the template can be quickly assembled and construction operations can be carried out, with high construction efficiency, and no need to spend a lot of time on chiseling in the later stage. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a template for the construction of post-casting strips that does not require chiseling. Compared with the template for post-casting strip construction in the prior art, there is no need to set up multiple steel wire meshes for sealing. At the same time, the template can be quickly assembled and construction operations can be carried out, with high construction efficiency, and no need to spend a lot of time on chiseling in the later stage.

[0005] The utility model is a chiseling-free template for post-casting strip construction, comprising an upper template and a lower template. The upper template and the lower template are mirror-imaged with the embedded water-stop steel plate as the axis of symmetry. The upper edge of the upper template and the lower edge of the lower template are respectively provided with a plurality of sawtooth-shaped tooth openings. When in use, steel bars can be inserted into the sawtooth-shaped tooth openings.

[0006] The upper formwork and the lower formwork are respectively provided with a plurality of grooves on the side surfaces facing the concrete to be poured, so as to make the concrete surface have indentations after the concrete pouring is completed.

[0007] Furthermore, it also includes a sealing part, including an upper sealing part and a lower sealing part. The upper sealing part and the lower sealing part are rack structures. When in use, the upper sealing part is pressed onto the serrated tooth opening of the upper edge of the upper template. When in use, the lower sealing part is pressed onto the serrated tooth opening of the lower edge of the lower template, and is used to close the gap formed by the steel bar and the serrated tooth opening.

[0008] Furthermore, the left and right sides of the upper template are respectively provided with a connecting protrusion and a connecting groove, which are used to connect two adjacent upper templates when in use;

[0009] The left and right sides of the lower template are respectively provided with a connecting protrusion and a connecting groove, which are used to connect two adjacent lower templates when in use.

[0010] Furthermore, it also includes a fixing component, which is two groups, including a fixing plate and two fasteners. The fixing plate is provided with two connecting holes, and the upper template and the lower template are respectively provided with mounting holes that match the connecting holes. When in use, the two fixing plates are respectively arranged on the outside of the upper template and the lower template, and span between the two adjacent upper templates and the two lower templates. The two fasteners pass through the two connecting holes and are correspondingly installed in the mounting holes of the two adjacent upper templates and the lower template.

[0011] Furthermore, the upper blocking member and the lower blocking member are made of elastic material.

[0012] Furthermore, the plurality of grooves are staggered and arranged, and the grooves are V-shaped structures.

[0013] The beneficial effects of the utility model are as follows: the template for post-casting strip construction of the utility model which does not require chiseling does not need to set up multiple steel wire meshes for sealing, compared with the template for post-casting strip construction in the prior art. At the same time, the template can be quickly assembled and construction operations can be carried out, with high construction efficiency, and no large amount of time needs to be spent on chiseling in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 Structural diagram from another perspective;

[0017] Figure 3 Schematic diagram of the structure of the blocking piece;

[0018] Figure 4 for Figure 1 A structural diagram from another perspective;

[0019] The above drawings include the following reference numerals:

[0020] 1. Upper template; 2. Lower template; 3. Groove; 4. Serrated tooth opening; 5. Upper sealing piece; 6. Connecting protrusion; 7. Installation gap of water-stop steel plate; 8. Lower sealing piece; 9. Connecting groove; 10. Installation hole; 11. Rack structure; 12. Fixing assembly. DETAILED DESCRIPTION

[0021] Figure 1 This is a schematic diagram of the structure of the utility model. Figure 2 for Figure 1 Another structural diagram from another perspective. Figure 3 It is a structural diagram of the sealing piece. Figure 4 for Figure 1 A structural diagram from another perspective, such as Figure 1-4 As shown: the formwork for post-casting strip construction that can be used without chiseling in this embodiment includes an upper formwork 1 and a lower formwork 2. The upper formwork 1 and the lower formwork 2 are mirror-imaged with the embedded water-stop steel plate as the axis of symmetry. The upper edge of the upper formwork 1 and the lower edge of the lower formwork 2 are respectively provided with a plurality of serrated teeth 4. When in use, steel bars can be inserted into the serrated teeth 4; the water-stop steel plate is arranged between the upper formwork 1 and the lower formwork 2, and a water-stop steel plate installation gap 7 is formed between the upper formwork 1 and the lower formwork 2 (the water-stop steel plate is not shown in the figure), and the water-stop steel plate is installed in the water-stop steel plate installation gap 7 (that is, located between the upper formwork and the lower formwork). The upper formwork 1 and the lower formwork 2 are flat plate structures, which can be made of polyethylene material. The body forming structure, the serrated teeth 4 are continuously distributed along the upper edge of the upper formwork 1 and the lower edge of the lower formwork 2, respectively. The upper and lower parts are relative to the upper and lower parts in the figure. By setting the serrated teeth 4, it is convenient for steel bars to be inserted into the serrated teeth 4 during use, which is convenient for layered binding of steel bars. At the same time, the spacing between the serrated teeth 4 on the upper edge of the upper formwork 1 and the serrated teeth 4 on the lower edge of the lower formwork 2 can be set according to the needs of use. When in use, the upper formwork 1 and the lower formwork 2 can be set to multiple sizes of different specifications according to conventional construction requirements, which is convenient for recycling. At the same time, when in use, the two upper formworks 1 are relatively arranged, and the two lower formworks 2 are relatively arranged, forming a pouring space for pouring concrete in the middle;

[0022] The upper formwork 1 and the lower formwork 2 are respectively provided with a plurality of grooves 3 on the surface facing the side of the concrete to be poured, so as to make the concrete surface have dents after the concrete pouring is completed; the upper formwork 1 and the lower formwork 2 are provided with a plurality of grooves 3 on the surface facing the pouring space, and the shape of the groove 3 can be V-shaped. By providing a plurality of grooves 3, after pouring concrete and removing the upper formwork 1 and the lower formwork 2, dents can be formed on the concrete surface. Compared with the prior art, which requires a lot of chiseling work on the concrete surface after the concrete is formed, the concrete can have the chiseling effect by itself, and there is no need for chiseling, which greatly improves construction efficiency and saves construction costs.

[0023] In the prior art, since the basement top slab post-cast strip contains longitudinal reinforcement and embedded water-stop steel plates, the side formwork of the post-cast strip is usually sealed with multiple wire meshes between the longitudinal reinforcement and the water-stop steel plates. The wire meshes are tensioned and fixed in position by the steel skeleton. Not only does it consume a lot of manpower to dismantle them, but the steel meshes and the steel skeleton are also difficult to completely chisel out. Compared with the prior art post-cast strip construction formwork, the chisel-free formwork for post-cast strip construction does not require multiple wire meshes for sealing. At the same time, the formwork can be quickly assembled and construction operations can be carried out, with high construction efficiency and no need to spend a lot of time on chiseling in the later stage.

[0024] In this embodiment, a blocking member is further included, including an upper blocking member 5 and a lower blocking member 8, wherein the upper blocking member 5 and the lower blocking member 8 are rack structures 11, and the upper blocking member 5 is pressed onto the serrated tooth opening 4 at the upper edge of the upper template 1 when in use, and the lower blocking member 8 is pressed onto the serrated tooth opening 4 at the lower edge of the lower template 2 when in use, so as to close the gap formed by the steel bar and the serrated tooth opening 4; the serrated tooth opening 4 is a V-shaped tooth opening, and the corresponding rack structure 11 is also provided with a V-shaped tooth opening. Of course, the serrated tooth opening 4 can also be other shapes, such as a U-shape, and the shape of the rack structure 11 is conformable to the serrated tooth opening 4 , the upper blocking piece 5 and the lower blocking piece 8 can be directly pressed onto the serrated tooth opening 4 of the upper edge of the upper formwork 1 and the lower edge of the lower formwork 2. At this time, the rack structure 11 is directly inserted into the serrated tooth opening 4, or the upper blocking piece 5 and the lower blocking piece 8 are respectively arranged on the outer side of the upper formwork 1 and the lower formwork 2 (the side away from the casting space), and are closely attached to the outer side of the serrated tooth opening 4 of the upper formwork 1 and the outer side of the serrated tooth opening 4 of the lower formwork 2. At the same time, the rack structure 11 and the serrated tooth opening 4 are staggered (that is, the concave part of the rack structure is opposite to the serrated tooth opening part, and the steel bar is located in the space formed by the two, see Figure 4 In the middle, the upper blocking piece and the upper edge of the template are staggered to form a space for placing steel bars), which can also achieve the purpose of the invention.

[0025] In this embodiment, the left and right sides of the upper template 1 are respectively provided with a connecting protrusion 6 and a connecting groove 9, which are used to connect two adjacent upper templates 1 when in use; the left and right sides are only used to distinguish the positions of the connecting protrusion 6 and the connecting groove 9. The connecting protrusion 6 and the connecting groove 9 are provided so that two adjacent upper templates 1 can be spliced ​​together when in use;

[0026] The left and right sides of the lower template 2 are respectively provided with a connecting protrusion 6 and a connecting groove 9, which are used to connect two adjacent lower templates 2 when in use; the left and right are only used to distinguish the positions of the connecting protrusion 6 and the connecting groove 9. The connecting protrusion and the connecting groove 9 are set so that the adjacent lower templates 2 can be spliced ​​together when in use.

[0027] In this embodiment, a fixing assembly 12 is also included, which is two groups and includes a fixing plate and two fasteners. The fixing plate is provided with two connecting holes, and the upper template 1 and the lower template 2 are respectively provided with mounting holes 10 that match the connecting holes. When in use, the two fixing plates are respectively arranged on the outside of the upper template 1 and the lower template 2, and span between the two adjacent upper templates 1 and the two lower templates 2. The two fasteners pass through the two connecting holes and are correspondingly installed in the mounting holes 10 of the two adjacent upper templates 1 and the lower template 2; the fasteners can be a combination of bolts and nuts or other structures that can achieve fastening installation. A fixing assembly 12 is provided, and the fixing assembly 12 is divided into two groups, which respectively fix the two adjacent upper templates 1 and the two adjacent lower templates 2.

[0028] In this embodiment, the upper blocking member 5 and the lower blocking member 8 are made of elastic material; the upper blocking member 5 and the lower blocking member 8 can be made of hard rubber, have a certain elasticity, and can be pressed into the serrated tooth opening 4.

[0029] In this embodiment, the multiple grooves 3 are staggered and are V-shaped structures; the multiple grooves 3 include a V-shaped structure with an upper opening and a V-shaped structure with a lower opening (relative to the upper and lower parts in the figure), and the V-shaped structure with an upper opening and the V-shaped structure with a lower opening are arranged relative to each other and are continuously arranged along the surface of the upper template 1 and the lower template 2.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A chiseling-free formwork for post-casting strip construction, characterized by: The upper and lower templates are mirror-imaged with the embedded water-stop steel plate as the axis of symmetry. The upper edge of the upper template and the lower edge of the lower template are respectively provided with a plurality of sawtooth-shaped tooth openings. When in use, steel bars can be inserted into the sawtooth-shaped tooth openings. The upper formwork and the lower formwork are respectively provided with a plurality of grooves on the side surfaces facing the concrete to be poured, so as to make the concrete surface have indentations after the concrete pouring is completed.

2. The chiseling-free formwork for post-casting strip construction according to claim 1 is characterized in that: It also includes a sealing piece, including an upper sealing piece and a lower sealing piece. The upper sealing piece and the lower sealing piece are rack structures. When in use, the upper sealing piece is pressed onto the serrated tooth opening of the upper edge of the upper template. When in use, the lower sealing piece is pressed onto the serrated tooth opening of the lower edge of the lower template, so as to close the gap formed by the steel bar and the serrated tooth opening.

3. The chiseling-free formwork for post-casting strip construction according to claim 1 is characterized in that: The left and right sides of the upper template are respectively provided with a connecting protrusion and a connecting groove, which are used to connect two adjacent upper templates when in use; The left and right sides of the lower template are respectively provided with a connecting protrusion and a connecting groove, which are used to connect two adjacent lower templates when in use.

4. The chiseling-free formwork for post-casting strip construction according to claim 1 is characterized in that: It also includes a fixing component, which is two groups, including a fixing plate and two fasteners. The fixing plate is provided with two connecting holes, and the upper template and the lower template are respectively provided with mounting holes that match the connecting holes. When in use, the two fixing plates are respectively arranged on the outside of the upper template and the lower template, and span between the two adjacent upper templates and the two lower templates. The two fasteners pass through the two connecting holes and are correspondingly installed in the mounting holes of the two adjacent upper templates and the lower template.

5. The chiseling-free formwork for post-casting strip construction according to claim 2 is characterized in that: The upper blocking piece and the lower blocking piece are made of elastic material.

6. The chiseling-free formwork for post-casting strip construction according to claim 1 is characterized in that: The multiple grooves are staggered and have a V-shaped structure.

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