Plastic film shell splicing structure convenient to disassemble and clean

Abstract

The utility model discloses a plastic film shell assembling structure convenient to dismantle and clean, which comprises a template structure, and the template structure is supported at the bottom of a concrete structure and is divided into a top plate supporting area and a dense rib beam supporting area; through holes are formed in the top plate supporting area and the dense rib beam supporting area, and plugging pieces are arranged at the through holes; after the top plate supporting area and the dense rib beam supporting area are coated with a release agent, the film shell is covered with a thin film, and the thin film is provided with a traction part at the position of the through hole; before the concrete structure is poured, the thin film is pulled by the through holes and is separated from the surfaces of the top plate supporting area and the dense rib beam supporting area. The formwork structure coated with the release agent is covered with a transparent plastic film, the transparent plastic film is pulled out of the through holes after steel bars are bound and before concrete is poured, nuts are screwed, and it is guaranteed that the formwork structure coated with the release agent is clean to the maximum extent; the concrete pouring quality of the ribbed beam and the top plate structure is improved, the probability of later reworking is reduced, and the construction efficiency of the ribbed beam and the top plate structure is improved. In addition, when the formwork structure is dismantled, the plugging piece is screwed off, the through hole is pressurized through the air pump, and dismantling of the formwork structure is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of membrane shell construction technology, specifically to a plastic membrane shell assembly structure that is easy to dismantle and clean. Background Technology

[0002] In current cast-in-place concrete construction, the quality control of the demolding process faces significant technical bottlenecks: traditional formwork, due to its strong surface adhesion, easily traps metal debris from the rebar tying stage, cement scale from formwork assembly, and environmental dust pollutants. Dust particles generated during rebar tying and before concrete pouring, along with residual wood chips from material handling, fall onto the plastic formwork coated with release agent and onto the formwork itself if not properly cleaned. The effectiveness of cleaning these residues directly impacts the quality of the concrete after demolding. Especially in rainy and humid conditions, the composite adhesive layer formed by pollutants and release agent is difficult to completely remove. Statistics show that such residues can cause surface defects such as pitting and porosity in over 30% of concrete components, and in severe cases, even affect structural durability, increasing the average annual rework cost per project by approximately 12-15%. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, a plastic membrane shell assembly structure that is easy to disassemble and clean is provided. This ensures the cleanliness of the template structure after the release agent has been applied, improves the concrete pouring quality of the ribbed beam and roof slab structure, reduces the likelihood of rework in the later stages, and enhances the construction efficiency of the ribbed beam and roof slab structure.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0005] The easily dismantled and cleanable plastic membrane shell assembly structure includes a template structure supported at the bottom of a concrete structure, divided into a top plate support area and a ribbed beam support area; both the top plate support area and the ribbed beam support area have through holes, and sealing parts are provided at the through holes; after a release agent is applied to the top plate support area and the ribbed beam support area, a thin film is covered on the membrane shell, and the thin film has a traction part at the through holes;

[0006] Before the concrete structure is poured, the membrane is pulled apart from the surface of the top plate support area and the ribbed beam support area by the through holes.

[0007] According to the above technical solution, it also includes an air pump and a pipeline connected to the through hole; after the concrete structure has solidified, the sealing parts are removed, and the pipeline is connected between the air pump and the through hole.

[0008] According to the above technical solution, the through hole is a threaded through hole, and the sealing component is a bolt that matches the threaded through hole.

[0009] According to the above technical solution, the size of the through hole is not less than 2cm.

[0010] According to the above technical solution, in the square grid-like ribbed beam, the template structure includes a plastic film shell, a detachable template, and a support template groove; the plastic film shells are arranged at intervals along the horizontal and vertical directions, and the detachable template is connected between two adjacent plastic film shells. The two adjacent plastic film shells and the detachable template together form the groove structure for casting the ribbed beam. All the plastic film shells and the detachable template together form a crisscrossing groove, and the grid-like ribbed beam is cast in the crisscrossing groove; the support template groove is supported at the bottom of the groove structure.

[0011] According to the above technical solution, the plastic membrane shell includes a top plane, a side panel, and a bottom plane. The top plane is attached to the top plate of the grid structure, serving as the top plate support area. The side panel is attached to the side of the ribbed beam of the grid structure. Two adjacent plastic membrane shells are connected to the two sides of the detachable template. The bottom plane and the detachable template are attached to the bottom surface of the ribbed beam of the grid structure. The side panel, the bottom plane, and the detachable template together constitute the bottom support area of ​​the ribbed beam.

[0012] According to the above technical solution, the support template groove is mainly composed of two angle steels spliced ​​together. The horizontal sections of the angle steels are provided with matching adjustment holes. The two angle steels are connected by fasteners to adjust the width of the support template groove. The template structure also includes pads and support rods. The detachable template structure is placed at the adjustment holes of the angle steels, and the pads are placed on the detachable templates. The pads, detachable templates, and angle steels are fixedly connected to each other by bolts and fasteners. The top of the support rod is fixedly connected to the bottom of the angle steel.

[0013] According to the above technical solution, at least one through hole is provided on the top plane and each of the mating sides.

[0014] According to the above technical solution, the film is a transparent plastic film; the film consists of multiple pieces, which are spliced ​​together to form a whole and cover the top plate support area and the dense rib beam support area.

[0015] This utility model has the following beneficial effects:

[0016] 1. After the formwork structure is assembled, a release agent is applied to the top slab support area and the ribbed beam support area. Since a reinforcing cage needs to be installed on top of the formwork structure after the release agent is applied, impurities or dust may fall onto the release agent during installation, causing contamination. This structure has multiple through-holes in the top slab support area and the ribbed beam support area, with sealing devices at each through-hole. After the release agent is applied, a thin film is placed over the surface to isolate impurities or dust. After the reinforcing cage is installed, the sealing devices are removed from the through-holes, the film is taken out, and then the through-holes are sealed with the sealing devices. Finally, the concrete pouring is completed.

[0017] Based on the above structure, a transparent plastic film is covered on the template structure after the release agent has been applied. After the reinforcement is tied and before the concrete is poured, the transparent plastic film is pulled out through the through hole and the nut is tightened. This ensures that the template structure with the release agent has been applied is kept as clean as possible, which improves the concrete pouring quality of the ribbed beam and top slab structure, reduces the chance of rework in the later stage, and improves the construction efficiency of the ribbed beam and top slab structure.

[0018] 2. When dismantling the formwork structure, unscrew the sealing parts and pressurize the through holes with an air pump. Use the air pressure to detach the formwork structure from the concrete structure, reducing the damage to the ribbed beam concrete caused by manual removal with pry bars and facilitating the dismantling of the formwork structure.

[0019] 3. A support formwork groove is installed. The support formwork groove is made of two angle steels spliced ​​together to meet the construction operations of different ribbed beams. In addition, the detachable formwork is fixed in the support formwork groove by spacers. The detachable formwork is used to position the plastic film shell on both sides, which facilitates the subsequent installation of positioning control steel bars in the plastic film shell and makes it easy to remove the formwork later.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0022] Figure 1 This is a structural schematic diagram of an embodiment provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the template structure without a plastic film shell provided in an embodiment of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the plastic film shell provided in an embodiment of this utility model;

[0025] Figure 4 This is a cross-sectional view of the plastic film shell provided in an embodiment of this utility model;

[0026] In the diagram, 1. Template structure; 1-1. Plastic film shell; 1-11. Top plane; 1-12. Fitting side; 1-13. Bottom plane; 1-2. Demountable template; 1-3. Support template groove; 1-31. Angle steel; 1-4. Pad; 1-5. Support rod; 2. Concrete structure; 2-1. Ribbed beam concrete; 2-2. Top slab concrete; 3. Through hole; 4. Sealing component; 5. Bolt. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0028] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Reference Figures 1-4 As shown, this utility model provides a plastic film shell assembly structure that is easy to disassemble and clean.

[0031] Example 1

[0032] The system includes a template structure 1, which is supported at the bottom of a concrete structure 2 and is divided into a top slab support area and a ribbed beam support area. Both the top slab support area and the ribbed beam support area have through holes 3, and sealing parts 4 are provided at the through holes. After a release agent is applied to the top slab support area and the ribbed beam support area, a thin film is covered on the template shell, and the thin film has a traction part at the through hole. The concrete structure includes ribbed beam concrete 2-1 and top slab concrete 2-2.

[0033] Before the concrete structure is poured, the membrane is pulled apart from the surface of the top plate support area and the ribbed beam support area by the through holes.

[0034] In this embodiment, after the template structure is assembled, a release agent is applied to the top slab support area and the ribbed beam support area of ​​the template structure. Since a reinforcing cage needs to be installed on top of the template structure after the release agent is applied, impurities or dust may fall onto the release agent during the installation process, causing contamination. This structure has multiple through holes in the top slab support area and the ribbed beam support area of ​​the template structure, and sealing devices are installed at these through holes. After the release agent is applied, a thin film is covered on the surface to isolate impurities or dust. After the reinforcing cage is installed, the sealing devices of the through holes are removed, the film is taken out through the through holes, and then the through holes are sealed with the sealing devices, finally completing the concrete pouring operation.

[0035] Based on the above structure, a transparent plastic film is covered on the template structure after the release agent has been applied. After the reinforcement is tied and before the concrete is poured, the transparent plastic film is pulled out through the through hole and the nut is tightened. This ensures that the template structure with the release agent has been applied is kept as clean as possible, which improves the concrete pouring quality of the ribbed beam and top slab structure, reduces the chance of rework in the later stage, and improves the construction efficiency of the ribbed beam and top slab structure.

[0036] Example 2

[0037] The structure and principle of Example 2 are similar to those of Example 1, except that: it also includes an air pump and a pipeline connected to the through hole; after the concrete structure has solidified, the sealing part is removed and the pipeline is connected between the air pump and the through hole.

[0038] In this embodiment, when dismantling the formwork structure, the sealing parts are unscrewed, and the through holes are pressurized by an air pump. The air pressure is used to detach the formwork structure from the concrete structure, reducing the damage to the ribbed beam concrete caused by manual removal with a pry bar and facilitating the removal of the formwork structure.

[0039] In embodiments 1-2, preferably, the through hole is a threaded through hole, and the sealing component is a bolt that matches the threaded through hole. To facilitate the removal of the film from the template structure, the size of the through hole is not less than 2 cm.

[0040] In Examples 1-2, a preferred structural form of the plastic film shell assembly structure is given. Specifically,

[0041] In the square grid-like ribbed beam, the template structure includes a plastic membrane shell 1-1, a detachable template 1-2, and a supporting template groove 1-3. The plastic membrane shells are arranged at intervals in the horizontal and vertical directions. The detachable templates are connected between two adjacent plastic membrane shells. The two adjacent plastic membrane shells and the detachable templates together form the groove structure for casting the ribbed beam. All the plastic membrane shells and the detachable templates together form a crisscrossing groove. The grid-like ribbed beam is cast in the crisscrossing groove. The supporting template groove is supported at the bottom of the groove structure.

[0042] In this embodiment, the plastic film shell is placed in the grid of the mesh structure; the detachable template is placed at the bottom of the grid; the support template groove is used to support the plastic film shell and the detachable template, and to splice the detachable template and the plastic film shell.

[0043] The plastic membrane shell includes a top plane 1-11, a fitting side 1-12, and a bottom plane 1-13. The top plane is fitted to the top plate of the grid structure, serving as the top plate support area. The fitting side is fitted to the side of the ribbed beam of the grid structure. Two adjacent plastic membrane shells are connected to the two sides of the detachable template. The bottom plane and the detachable template are fitted to the bottom surface of the ribbed beam of the grid structure. The fitting side, the bottom plane, and the detachable template together constitute the bottom support area of ​​the ribbed beam.

[0044] In the above structure, the top plane is supported on the top plate inside the grid of the mesh structure, the side is supported on the side of the ribbed beam, and the bottom plane is supported on part of the bottom surface of the ribbed beam. The removable template is attached to the remaining area of ​​the bottom surface of the ribbed beam, and the support template groove is located at the bottom of the ribbed beam, attached to the bottom surface of the removable template, the bottom plane of the plastic film shell, and part of the side of the plastic film shell.

[0045] To effectively connect and support the plastic modules and detachable templates, the support template groove is mainly composed of two angle steels 1-31 spliced ​​together. The length of the angle steel is the same as the length of a single ribbed beam. Matching adjustment holes are provided between the horizontal sections of the angle steels. The two angle steels are connected by fasteners to adjust the width of the support template groove. The template structure also includes pads 1-4 and support rods 1-5. The detachable template structure is placed at the adjustment holes of the angle steels, and the pads are placed on the detachable templates. The pads, detachable templates, and angle steels are fixedly connected to each other by bolts 5. The top of the support rod is fixedly connected to the bottom of the angle steel. The angle steels and detachable templates have the same length as the single-sided ribbed beams of the grid structure, and the pads are spaced apart on the detachable templates.

[0046] In the above structure, before concrete pouring, the spacer blocks, detachable templates, and support template slots are fixedly connected to each other using bolts and fasteners. After concrete pouring, the spacer blocks, detachable templates, and support template slots can be disassembled for easy storage later. The detachable templates can be used not only to connect two adjacent plastic film shells but also to serve as positioning elements during plastic film shell installation. When the plastic film shell is installed in the support template slot, the support template slot supports the bottom of the plastic film shell, providing vertical positioning; the detachable template supports the sides of the plastic film shell, providing horizontal positioning. The combined effect of the support template slot and the detachable template reduces the difficulty of installing the plastic film shell within the support template slot. During construction, the support template slot is installed first; after installation, the plastic film is placed inside the template support slot to complete positioning.

[0047] In the above embodiments, at least one through hole is provided on the top plane and each of the mating sides.

[0048] In Examples 1-2, the film is a transparent plastic film; the film consists of multiple pieces, spliced ​​together to form a whole, and covers the top plate support area and the dense rib beam support area.

[0049] In this utility model:

[0050] Plastic membrane shells are used, with dimensions specified in the drawings for each construction project. Reusable plastic membrane shells are adopted, and they can be reused more than 20 times without deformation. The dimensional error of the membrane shells is ≤3-5mm.

[0051] During the pouring of the ribbed beams and top slab, wooden formwork can be used to fill in areas where this device cannot be used on the side ribs. After the formwork structure of this device is installed, a release agent is applied to the plastic film, and all installed film shells are covered with plastic film and fixed through bolt holes. The beam and slab reinforcement is then tied. After the on-site reinforcement is installed and inspected, the plastic film is removed, and nuts are installed one by one on each bolt hole and tightened. After the concrete is poured, the screws are unscrewed and the special formwork groove is removed. When removing the film shell, all nuts are unscrewed, and an air pump is used to press through each bolt hole. The air pressure causes the film shell to fall off, reducing the damage to the ribbed beam concrete caused by manual removal with pry bars.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A plastic film shell assembly structure that is easy to disassemble and clean, characterized in that: It includes a template structure, which is supported at the bottom of the concrete structure and is divided into a top slab support area and a ribbed beam support area. Both the top slab support area and the ribbed beam support area are provided with through holes, and sealing parts are provided at the through holes. After the top slab support area and the ribbed beam support area are coated with a release agent, a thin film is covered on the membrane shell, and the thin film is provided with a traction part at the through hole. Before the concrete structure is poured, the membrane is pulled apart from the surface of the top plate support area and the ribbed beam support area by the through holes.

2. The plastic film shell assembly structure easy to disassemble and clean according to claim 1, characterized in that: It also includes an air pump and piping connected to the through hole; after the concrete structure has hardened, the sealing parts are removed, and the piping is connected between the air pump and the through hole.

3. The plastic film shell assembly structure easy to disassemble and clean according to claim 1 or 2, characterized in that: The through hole is a threaded through hole, and the sealing part is a bolt that matches the threaded through hole.

4. The plastic film shell assembly of claim 3, wherein: The size of the through hole should not be less than 2cm.

5. The demountable and cleanable plastic film shell assemblage structure of claim 1, wherein: In the square grid-like ribbed beam, the template structure includes plastic film shells, detachable templates, and support template grooves; the plastic film shells are arranged at intervals in the horizontal and vertical directions, and the detachable templates are connected between two adjacent plastic film shells. The two adjacent plastic film shells and the detachable templates together form the groove structure for casting the ribbed beam. All the plastic film shells and the detachable templates together form crisscrossing grooves, and the grid-like ribbed beam is cast in the crisscrossing grooves. The support template groove is supported at the bottom of the trench structure.

6. The plastic film shell assemblage structure easy to dismantle and clean according to claim 5, characterized in that: The plastic membrane shell includes a top plane, fitting sides, and a bottom plane. The top plane is fitted to the top plate with a grid structure, serving as the top plate support area. The side panels are attached to the sides of the ribbed beam with a grid structure. Two adjacent plastic film shells are connected to the two sides of the detachable template. The bottom plane and the detachable template are attached to the bottom surface of the ribbed beam with a grid structure. The side panels, bottom plane and detachable template together form the bottom support area of ​​the ribbed beam.

7. The plastic film shell assemblage structure easy to dismantle and clean according to claim 6, characterized in that: The support template groove is mainly composed of two angle steels spliced ​​together. The horizontal sections of the angle steels are provided with matching adjustment holes. The two angle steels are connected by fasteners to adjust the width of the support template groove. The template structure also includes pads and support rods. The detachable template structure is placed at the adjustment hole of the angle steel, the pads are placed on the detachable template, and the pads, detachable template, and angle steel are fixedly connected to each other by bolt fasteners; the top of the support rod is fixedly connected to the bottom of the angle steel.

8. The plastic film shell assemblage structure easy to dismount and clean according to claim 6, characterized in that: At least one through hole is provided on the top plane and each of the mating sides.

9. The demountable and cleanable plastic film shell assemblage of claim 1, wherein: The film is a transparent plastic film; the film consists of multiple pieces, spliced ​​together to form a whole, and covers the top plate support area and the dense rib beam support area.

Images