Portable floor post-cast strip plugging device

Abstract

The utility model provides a portable floor post-cast strip plugging device which comprises at least one group of plugging mechanisms, each plugging mechanism comprises a plurality of templates which are connected in sequence, the adjacent templates are connected in a hinged mode so that the templates can be folded, and steel bar grooves and burrs are arranged on the templates. The post-cast strip floor slab plugging device can be folded when not used, so that the storage space is reduced, and material transfer and turnover can be conveniently carried out on a construction site; different sizes of the post-cast strip floor slab plugging device can be set according to actual requirements to be spliced so as to adapt to construction of different post-cast strip lengths; the burrs are arranged on the surface of the formwork, and after the formwork is disassembled, the joint of the post-cast strip is a burr surface, so that the procedure of chiseling the joint of the concrete can be reduced once.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, and in particular to a post-pouring strip sealing device. Background Technology

[0002] Currently, during the construction of floor slabs, the reinforcing bars of the post-pouring strip need to be thrown out during the process of leaving the post-pouring strip. The most common method is to use a formwork to cut grooves, and then fix the thrown reinforcing bars in the grooves at the formwork location to ensure the protective layer and position of the reinforcing bars in the floor slab.

[0003] Existing technology for slotting formwork has several drawbacks: first, it wastes formwork, resulting in low reuse rates and making it unsuitable for multiple uses; second, workers often cut slots in non-standard positions, leading to burrs at the junction of the reinforcing bars and formwork after concrete pouring, with the burrs at the base of the reinforcing bars being particularly difficult to remove; and third, conventional formwork has a smooth surface, requiring secondary roughening of the slab sides during post-pouring strip construction.

[0004] Chinese invention application CN 111502043 A, published on October 29, 2020, discloses an assembled post-pouring strip sealing tool and its construction method. The tool's structure includes several sets of sealing plates, each consisting of an upper and lower sealing plate symmetrically arranged. A water-stop steel plate is positioned between the upper and lower sealing plates, and a first sleeve is fixed to the side. The two sets of sealing plates symmetrically arranged form a sealing tool. A support rod is installed between the first sleeves on the two symmetrically arranged sealing plates. The support rod consists of a telescopic rod and a second sleeve. The second sleeve has several small holes evenly distributed on it. A fixing buckle is provided on the telescopic rod, and a spring is located below the fixing buckle. Several locking grooves are provided on the side of the upper and lower sealing plates near the water-stop steel plate for installing reinforcing bars. When pressed, the fixing buckle extends and retracts under the action of the spring, engaging with different small holes on the second sleeve. However, this sealing plate is not convenient for folding, transportation, and storage. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model proposes a portable post-cast strip sealing device for floor slabs, which solves the problem that sealing plates in the prior art are inconvenient to fold, transport, and store.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A portable post-cast strip sealing device for floor slabs includes at least one sealing mechanism. Each sealing mechanism comprises multiple sequentially connected templates, with adjacent templates hinged together to allow for folding. The templates are provided with rebar grooves and burrs. This post-cast strip floor slab sealing device can be folded when not in use, reducing storage space and facilitating material handling and turnover on the construction site. Furthermore, the device can be assembled in different sizes to accommodate construction of varying post-cast strip lengths.

[0008] Furthermore, adjacent templates of each sealing mechanism are hinged together.

[0009] Furthermore, one end of the template located in the middle of each sealing mechanism is hinged to the previous template via hinge one, and the other end is hinged to the next template via hinge two, or one end of the template located in the middle is hinged to the previous template via hinge two, and the other end is hinged to the next template via hinge one; hinge one and hinge two are located on both sides of the template so that multiple templates can be folded and closed.

[0010] Furthermore, a connecting mechanism for connecting another set of sealing mechanisms is also provided on the template at the end of each set of sealing mechanisms.

[0011] Furthermore, one of the two templates located at the end of each sealing mechanism is hinged with a hook, and the other is equipped with a hook.

[0012] Furthermore, one of the two templates located at the end of each sealing mechanism is provided with a locking hook, and the other is provided with a locking groove that engages with the locking hook on the adjacent sealing mechanism.

[0013] Furthermore, the locking hook has an L-shaped structure, with one part of the L-shaped structure being parallel to the template and slidably and / or rotatably connected to the template, and the other part being used to hook the edge of the locking groove of the adjacent sealing mechanism.

[0014] Furthermore, an L-shaped component is vertically fixed on the template, and the locking groove is formed between the L-shaped component and the template.

[0015] Furthermore, the reinforcing bar groove is a U-shaped groove.

[0016] Furthermore, the burrs are protrusions formed by half-punching on the back side of the template.

[0017] The beneficial effects of this utility model are:

[0018] 1. This utility model improves the saving of formwork materials during the construction of pre-reserved steel bars in post-pouring strips, and can be reused multiple times, saving energy and reducing carbon emissions;

[0019] 2. This utility model accurately positions the reinforcing bars, ensuring the accuracy of the reinforcing bar reservation;

[0020] 3. The surface of the post-cast strip floor slab sealing device of this utility model is a burred surface. After demolding, the joint of the post-cast strip is a burred surface, which can reduce the process of roughening the concrete joint.

[0021] 4. The post-pouring strip floor slab sealing device of this utility model can be folded when not in use, reducing storage space and facilitating material handling and turnover on the construction site;

[0022] 5. The post-pouring strip floor slab sealing device of this utility model can be spliced ​​with different sizes according to actual needs to adapt to the construction of different post-pouring strip lengths. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a top view of the structure of this utility model.

[0026] In the diagram: 1. Template, 11. Rebar groove, 12. Burr, 13. Hinge 1, 14. Hinge 2, 2. Connecting mechanism, 21. Locking hook, 22. Locking groove. Detailed Implementation

[0027] 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.

[0028] like Figure 1As shown in Embodiment 1 of this utility model, a portable post-cast strip sealing device for floor slabs includes at least one sealing mechanism, which comprises multiple templates 1 connected in sequence. In this embodiment, the multiple templates 1 are arranged in a straight line and connected in sequence. Hinged connections between adjacent templates 1 allow them to be folded, facilitating movement or storage after folding. Each template 1 has a reinforcing bar groove 11 for inserting pre-embedded reinforcing bars. The inner surface of each template 1 has burrs 12, ensuring that the joint of the post-cast strip is roughened after concrete pouring and demolding, reducing the need for a single roughening process at the concrete joint. This post-cast strip floor slab sealing device can be folded when not in use, reducing storage space and facilitating material handling and turnover on the construction site. Furthermore, the device can be assembled in different sizes to accommodate different post-cast strip lengths according to actual needs.

[0029] Example 2 differs from Example 1 in that adjacent templates 1 of each sealing mechanism are hinged together by hinges.

[0030] Specifically, such as Figure 2 As shown, the front end of a template 1 located in the middle of each sealing mechanism is hinged to the preceding template 1 via hinge 13, and the rear end is hinged to the following template 1 via hinge 2 14. For a template also located in the middle and behind the aforementioned template 1, its front end is hinged to the aforementioned template 1 via hinge 2 14, and its rear end is hinged to another template 1 via hinge 13. Furthermore, hinge 13 and hinge 2 14 are located on opposite sides of the template 1, allowing multiple templates 1 to fold and close in a W-shape.

[0031] Example 3 differs from Example 2 in that, as Figure 2 As shown, the template 1 located at the end of each sealing mechanism is also provided with a connecting mechanism 2 for connecting another sealing mechanism. The connecting mechanism 2 includes a locking groove 21 and a locking hook 21 that engages with the locking groove 21 on the adjacent sealing mechanism.

[0032] Specifically, one of the two templates 1 located at the end of each sealing mechanism is provided with a locking hook 21, and the other is provided with a locking groove 21 that engages with the locking hook 21. The locking groove 21 is an open slot. The locking hook 21 has an L-shaped structure, with its horizontal portion parallel to the template 1 and its vertical portion located at the end of the horizontal portion closer to the adjacent sealing mechanism. The horizontal portion is slidably and rotatably connected to the template 1. Specifically, the template 1 is provided with a limiting ring, and the horizontal portion is horizontally positioned and parallel to the template 1, then passes through the limiting ring. The horizontal portion of the L-shaped structure is slidably engaged with the limiting ring. Furthermore, the horizontal portion of the L-shaped structure is a cylindrical rod that can rotate within the limiting ring. When the two sealing mechanisms are connected, rotating the L-shaped structure allows the vertical portion to align with the opening of the locking groove 21. Then, the sliding L-shaped structure passes the vertical portion through the locking groove 21, and further rotation hooks the vertical portion onto one side of the locking groove 21, preventing the two sealing mechanisms from disengaging. In addition, a protrusion is provided at the end of the horizontal part away from the vertical part. This protrusion does not prevent the vertical part of the L-shaped structure from sliding to the other side of the locking groove 21 and hooking the edge of the locking groove 21. At the same time, this protrusion prevents the locking hook 21 from continuing to slide after hooking the locking groove 21.

[0033] Furthermore, an L-shaped component is vertically fixed on the template 1, and the L-shaped component and the template 1 form the upward-facing locking groove 21.

[0034] Example 4 differs from Example 2 in that the connecting mechanism 2 includes a hook and a hook nose that cooperates with the hook. That is, one of the two templates 1 located at the end of each group of blocking mechanisms has a hook hinged on it, and the other has a hook nose that cooperates with the hook on the adjacent blocking mechanism.

[0035] Example 5 differs from Example 3 in that, as Figure 2 As shown, the rebar groove 11 is a U-shaped groove, which facilitates the placement of rebars into the groove after formwork is erected. The opening of the U-shaped groove may cause a small amount of concrete to flow out and solidify during grouting, leaving residue. This residue can be easily removed by tapping during formwork removal, which is much more convenient than inserting rebars into rebar holes.

[0036] The size of each template and the spacing of the rebar grooves 11 are cut according to the rebar spacing requirements. The height of the template is the thickness of the floor slab to ensure that the height meets the slab thickness requirements after installation.

[0037] Then, cut a rebar groove 11 in the middle of each cut steel plate. The width of the rebar groove 11 is determined according to the diameter of the rebar. The width of the rebar groove 11 needs to be slightly larger than the diameter of the rebar to facilitate the insertion of the rebar. The depth of the rebar groove 11 is the diameter of the rebar plus the thickness of the concrete cover of the rebar.

[0038] Example 6 differs from Example 1 in that, as Figure 2 As shown, the burrs 12 are formed by pre-punching multiple semi-punches on the back side of the template 1 using a punching machine, thereby creating multiple raised burrs 12 on the front side of the template 1. Furthermore, each burr protrudes 2-4 mm from the steel plate surface.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features thereof, within the spirit and principles of the present invention, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A portable device for sealing post-cast strips in floor slabs, characterized in that: It includes at least one sealing mechanism, which includes multiple templates (1) connected in sequence. The adjacent templates (1) are hinged to each other so that the templates (1) can be folded. The templates (1) are provided with steel bar grooves (11) and burrs (12).

2. The portable post-cast strip sealing device for floor slabs according to claim 1, characterized in that: The adjacent templates (1) of each sealing mechanism are hinged together by hinges.

3. The portable post-cast strip sealing device for floor slabs according to claim 2, characterized in that: One end of the template (1) located in the middle of each sealing mechanism is hinged to the previous template (1) via hinge one (13), and the other end is hinged to the next template (1) via hinge two (14). Alternatively, one end of the template located in the middle is hinged to the previous template (1) via hinge two (14), and the other end is hinged to the next template (1) via hinge one (13). Hinges one (13) and hinge two (14) are located on both sides of the template (1) so that multiple templates (1) can be folded together.

4. The portable post-cast strip sealing device for floor slabs according to any one of claims 1 to 3, characterized in that: The template (1) located at the end of each group of sealing mechanisms is also provided with a connecting mechanism (2) for connecting another group of sealing mechanisms.

5. The portable post-cast strip sealing device for floor slabs according to claim 4, characterized in that: One of the two templates (1) located at the end of each sealing mechanism is hinged with a hook and the other is provided with a hook.

6. The portable post-cast strip sealing device for floor slabs according to claim 4, characterized in that: One of the two templates (1) located at the end of each sealing mechanism is provided with a locking hook (22), and the other is provided with a locking groove (21) that cooperates with the locking hook (22) on the adjacent sealing mechanism.

7. The portable post-cast strip sealing device for floor slabs according to claim 6, characterized in that: The locking hook (22) is an L-shaped structure, and one part of the L-shaped structure is parallel to the template (1) and is slidably and / or rotatably connected to the template (1), while the other part is used to hook the edge of the locking groove (21) of the adjacent sealing mechanism.

8. The portable post-cast strip sealing device for floor slabs according to claim 6, characterized in that: An L-shaped component is vertically fixed on the template (1), and the locking groove (21) is formed between the L-shaped component and the template (1).

9. The portable post-cast strip sealing device for floor slabs according to any one of claims 1 to 3, 5 and 6, characterized in that: The reinforcing bar groove (11) is a U-shaped groove.

10. The portable post-cast strip sealing device for floor slabs according to any one of claims 1 to 3, 5 and 6, characterized in that: The burr (12) is a protrusion formed by half-punching on the back side of the template (1).

Images