Normal use pouring shaping device based on concrete precast slab

Abstract

The utility model relates to the technical field of civil construction, and discloses a normal use pouring shaping device based on a concrete precast slab, which comprises a drain pipe embedded part, a template arranged at the bottom of the drain pipe embedded part, and a fixing mechanism arranged in the drain pipe embedded part and used for positioning, and the fixing mechanism comprises a base arranged at the top of the template, a threaded sleeve is fixed to the top of the base, a threaded rod is connected to the inner wall of the threaded sleeve in a threaded mode, a rotating rod is fixed to the top end of the threaded rod, a plug is rotationally connected to the outer side of the threaded rod, and the plug is connected to the inner wall of the drainage pipe embedded part in a clamped mode. According to the prefabricated slab formwork, the formwork cannot be damaged during disassembly and can be used for the second time, steel nails are not needed for fixation during fixation, the problem that the steel nails are exposed after the formwork is disassembled is solved, the working efficiency is improved, and meanwhile the service life of the prefabricated slab formwork is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering construction technology, specifically to a normal casting and shaping device for precast concrete slabs. Background Technology

[0002] Pre-embedded components in civil engineering construction refer to the installation of necessary components, pipes, or connectors into the concrete structure during the structural construction phase of civil engineering or building projects to meet the needs of subsequent decoration, equipment installation, and pipeline laying. These pre-embedded components can be metal, such as steel components, embedded iron parts, and connecting bolts; or they can be made of other materials, such as plastic pipes or electrical conduits. Before pouring concrete, the pre-embedded components for drainage pipe installation are fixed to the formwork so that after the formwork is removed, the pre-embedded components are fixed to the concrete, facilitating the later installation of drainage pipes.

[0003] Currently, when installing and fixing pipe embedded parts to precast slab formwork, the location of the drainage pipe is usually determined first, and then the embedded parts are nailed to the formwork with steel nails according to the location. After the concrete is poured, the formwork is removed. However, when dismantling the formwork, it is quite troublesome because the formwork is nailed together with steel nails. If you are not careful, you may damage the formwork, which is not conducive to its reuse. Moreover, after the formwork is removed, many steel nails left over from the dismantling will appear on the concrete surface, which requires further processing of the steel nails, wasting manpower and time. Utility Model Content

[0004] The purpose of this invention is to provide a normal casting and shaping device for precast concrete slabs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a normal casting and shaping device for precast concrete slabs, including a drainage pipe embedded part, wherein a template is provided at the bottom of the drainage pipe embedded part, and further comprising:

[0006] A fixing mechanism for positioning is installed inside the pre-embedded part of the drainage pipe. The fixing mechanism includes a base installed on the top of the template. A threaded sleeve is fixed to the top of the base. A screw is threaded to the inner wall of the threaded sleeve. A rotating rod is fixed to the top of the screw. A plug is rotatably connected to the outer side of the screw. The plug is engaged with the inner wall of the pre-embedded part of the drainage pipe.

[0007] Preferably, the top of the seal is fixed with a top cover, the top of the top cover is fixed with a limiting ring, the screw is threaded to the inner wall of the limiting ring, and the limiting ring is made of stainless steel.

[0008] Preferably, the inner wall of the base has two symmetrical threaded holes, and the inner wall of the threaded holes is threaded with self-tapping screws.

[0009] Preferably, a water-stop plate for preventing water leakage is fixed to the outside of the pre-embedded part of the drainage pipe, and the water-stop plate is made of stainless steel.

[0010] Preferably, the top of the waterstop plate is fixed with a plurality of positioning posts for improving the stability of the drainage pipe embedded part, and the positioning posts are fixed to the outside of the drainage pipe embedded part.

[0011] Preferably, the inner wall of the drainage pipe embedded part is provided with a filling groove for expanding the concrete contact surface of the drainage pipe embedded part.

[0012] Preferably, the material of the top cover, the sealing plug, and the pre-embedded drainage pipe is all set as type 3 polypropylene.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model effectively fixes the embedded parts to the template by setting a fixing mechanism, which facilitates disassembly after construction. The template is not damaged during disassembly and can be reused. The fixing does not require steel nails, avoiding the problem of exposed steel nails after the template is removed. It improves the convenience of removing the precast slab after the concrete is poured, thereby improving work efficiency, extending the service life of the precast slab template, and reducing civil engineering costs. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the concrete precast slab casting and shaping device provided by this utility model;

[0016] Figure 2 A schematic diagram of the internal structure of the drainage pipe embedded part provided by this utility model;

[0017] Figure 3 A schematic diagram of the fixing mechanism provided by this utility model;

[0018] Figure 4 A schematic diagram of the structure of the pre-embedded drainage pipe component provided by this utility model.

[0019] In the diagram: 1. Drainage pipe embedded part; 2. Template; 3. Fixing mechanism; 31. Base; 32. Threaded sleeve; 33. Screw; 34. Rotating rod; 35. Seal; 4. Top cover; 5. Limiting ring; 6. Threaded hole; 7. Self-tapping screw; 8. Water stop plate; 9. Positioning column; 10. Filling 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 1-4 As shown, a normal casting and shaping device based on precast concrete slabs includes a drainage pipe embedded part 1, which facilitates the installation of the drainage pipe after casting; a template 2 is provided at the bottom of the drainage pipe embedded part 1, which facilitates the creation of a model for concrete casting; and a fixing mechanism 3 is provided inside the drainage pipe embedded part 1 for positioning. The fixing mechanism 3 includes a base 31 provided on the top of the template 2, which facilitates connection and fixing with the template 2; a threaded sleeve 32 is fixed on the top of the base 31. The threaded sleeve 32 facilitates the threaded connection of the screw 33 to it, thereby fixing the plug 35 and the top cover 4 to the pre-embedded part 1 of the drainage pipe. The inner wall of the threaded sleeve 32 is threadedly connected to the screw 33, which can be rotated to fix and disassemble the plug 35 and the top cover 4 to the pre-embedded part 1 of the drainage pipe. The top of the screw 33 is fixed with a rotating rod 34, which can drive the screw 33 to rotate. The outer side of the screw 33 is rotatably connected to the plug 35, which is snapped into the inner wall of the pre-embedded part 1 of the drainage pipe. The plug 35 can be snapped into and fixed to the inner wall of the pre-embedded part 1 of the drainage pipe.

[0022] Please see Figure 1 , Figure 2 and Figure 4As shown, a top cover 4 is fixed to the top of the sealing 35. The top cover 4 facilitates the sealing of the drainage pipe embedded part 1, preventing concrete from entering the drainage pipe embedded part 1 and causing internal contamination. A limit ring 5 is fixed to the top of the top cover 4. The screw 33 is threaded to the inner wall of the limit ring 5. The limit ring 5 is made of stainless steel. The limit ring 5 restricts the position of the rotating rod 34 and can be threaded to the screw 33. Two symmetrical threaded holes 6 are opened on the inner wall of the base 31. Self-tapping screws 7 are threaded to the inner wall of the threaded holes 6. The two symmetrical threaded holes 6 facilitate the installation and fixation of the base 31 to the template 2 using self-tapping screws 7. A waterstop plate 8 is fixed to the outside of the drainage pipe embedded part 1 to prevent leakage. The water-stop plate 8 is made of stainless steel, which effectively prevents water leakage from the concrete. Multiple positioning posts 9 are fixed to the top of the water-stop plate 8 to improve the stability of the drainage pipe embedded part 1. These positioning posts 9 are fixed to the outside of the drainage pipe embedded part 1, improving its stability and preventing loosening between the part and the concrete. A filling groove 10 is provided on the inner wall of the drainage pipe embedded part 1 to expand its concrete contact surface. This groove allows concrete to flow into the filling groove during pouring, making the connection between the drainage pipe embedded part 1 and the concrete more stable. The top cover 4, the sealing plug 35, and the drainage pipe embedded part 1 are all made of type 3 polypropylene.

[0023] Working principle: The user assembles the precast slab template 2, and then, according to the required location for installing the drainage pipe, installs and fixes the base 31 to the template 2 using self-tapping screws 7. A threaded sleeve 32 is fixedly connected to the base 31, and the center of the threaded sleeve 32 and the center of the required drainage pipe are on the same vertical line. Then, the drainage pipe embedded part 1 is placed on the template 2, and the plug 35 is inserted into the top of the drainage pipe embedded part 1. By rotating the rotating rod 34, the screw 33 is rotated and threadedly connected to the threaded sleeve 32, thus fixing the drainage pipe embedded part 1 to the template 2. After the concrete is poured, the screw 33 is rotated in the opposite direction to separate the plug 35 from the drainage pipe embedded part 1. Then, the self-tapping screws 7 are loosened to remove the base 31, so that the drainage pipe embedded part 1 and the precast slab template 2 can be effectively positioned before pouring.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting and shaping device based on precast concrete slabs, comprising a drainage pipe embedded part (1), wherein a template (2) is provided at the bottom of the drainage pipe embedded part (1), characterized in that, Also includes: A fixing mechanism (3) for positioning is set inside the pre-embedded part (1) of the drainage pipe. The fixing mechanism (3) includes a base (31) set on the top of the template (2). A threaded sleeve (32) is fixed on the top of the base (31). A screw (33) is threadedly connected to the inner wall of the threaded sleeve (32). A rotating rod (34) is fixed to the top of the screw (33). A plug (35) is rotatably connected to the outer side of the screw (33). The plug (35) is snapped into the inner wall of the pre-embedded part (1) of the drainage pipe.

2. The device for normal casting and shaping of precast concrete slabs according to claim 1, characterized in that: The top of the plug (35) is fixed with a top cover (4), and a limit ring (5) is fixed on the top of the top cover (4). The screw (33) is threaded to the inner wall of the limit ring (5), and the limit ring (5) is made of stainless steel.

3. The device for normal casting and shaping of precast concrete slabs according to claim 1, characterized in that: The inner wall of the base (31) has two symmetrical threaded holes (6), and the inner wall of the threaded holes (6) is threaded with self-tapping screws (7).

4. The normal casting and shaping device for precast concrete slabs according to claim 1, characterized in that: The outer side of the pre-embedded part (1) of the drainage pipe is fixed with a water-stop plate (8) for preventing water leakage, and the water-stop plate (8) is made of stainless steel.

5. A normal casting and shaping device for precast concrete slabs according to claim 4, characterized in that: The top of the water-stop plate (8) is fixed with a plurality of positioning columns (9) for improving the stability of the drainage pipe pre-embedded part (1), and the positioning columns (9) are fixed to the outside of the drainage pipe pre-embedded part (1).

6. The device for normal casting and shaping of precast concrete slabs according to claim 1, characterized in that: The inner wall of the drainage pipe embedded part (1) is provided with a filling groove (10) for expanding the concrete contact surface of the drainage pipe embedded part (1).

7. A normal casting and shaping device for precast concrete slabs according to claim 2, characterized in that: The top cover (4), the plug (35), and the drainage pipe embedded part (1) are all made of type 3 polypropylene.

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