Turnover zipper type inflatable template of grouting bin

Abstract

The utility model relates to the field of building construction, in particular to a grouting bin turnover zipper type inflatable formwork which comprises a sealing film, an inflatable part and a waterproof airtight zipper. The inner wall of the sealing film is enclosed to form an inflation bin, the sealing film is provided with an inflation piece, and the sealing film can be arranged on the edges of the upper and lower prefabricated wall bodies through sealant to form a sealed boundary; the inflating part is used for ventilating the inflating bin, so that the sealing film is expanded and clings to the prefabricated wall body; the waterproof airtight zipper is arranged on the sealing film in an openable and closable mode so that the inflation bin can be selectively sealed. By means of the structure, it can be guaranteed that in grouting construction, bin sealing materials can be recycled, resource waste is avoided, meanwhile, the sealed bin can be rapidly detached, the operation time is greatly shortened, and therefore the construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to a reusable zipper-type inflatable formwork for grouting chambers. Background Technology

[0002] In the field of prefabricated buildings, with the continuous development of technology, prefabricated structures have been widely used, greatly promoting the industrialization process of the construction industry. Prefabricated structures enable standardized production of building components, improving production efficiency, reducing labor costs, and also contributing to improved building quality and safety. Especially in large commercial buildings and residential projects, prefabricated structures have gradually become the mainstream building form due to their numerous advantages. In the grouting construction stage of prefabricated structures, the quality and efficiency directly affect the stability and safety of the entire prefabricated building, and therefore have always been a key focus and research object in the industry. In the grouting construction of prefabricated structures, in order to achieve the sealing of the grouting chamber, the existing process mainly uses sealing material. Specifically, construction personnel need to prepare the sealing material on the construction site, mix it evenly, and then pour it on-site between the upper and lower prefabricated walls. Afterwards, the sealing material is allowed to cure, allowing it to reach a certain strength and stability, thus forming a sealed grouting chamber. This process involves multiple steps and requires construction personnel to have certain professional skills and experience. Furthermore, in actual construction, the proportion of sealing material and construction methods need to be adjusted according to the specific circumstances for precast walls of different specifications and types. In addition, to ensure the sealing effect, parameters such as the pouring thickness and flatness of the sealing material must be strictly controlled. However, this method of sealing with sealing material has many drawbacks. On the one hand, sealing material is a disposable material, requiring a large amount for each construction project, which is not only costly but also results in serious resource waste, contradicting the current concept of green construction. On the other hand, the construction process is relatively complex, requiring on-site pouring and curing, which is cumbersome and time-consuming, significantly impacting construction efficiency. Utility Model Content

[0003] In order to ensure the recycling of sealing material during grouting construction, avoid resource waste, and enable rapid disassembly of the sealing material to greatly shorten the operation time and improve construction efficiency, this application provides a reusable zipper-type inflatable formwork for grouting chambers.

[0004] This application provides a reusable zipper-type inflatable formwork for grouting chambers, including a sealing membrane, an inflatable component, and a waterproof and airtight zipper. The inner wall of the sealing membrane encloses an inflatable chamber, and the sealing membrane is equipped with the inflatable component. The sealing membrane can be sealed to the edges of upper and lower precast walls using sealant to form a closed boundary. The inflatable component is used to ventilate the inflatable chamber, causing the sealing membrane to expand and adhere tightly to the precast wall. The waterproof and airtight zipper is openable and closable on the sealing membrane to selectively seal the inflatable chamber. By adopting the above technical solution, the sealing membrane can be sealed to the edges of upper and lower precast walls using sealant to form a closed boundary. Compared with existing methods that use sealing materials to seal the chamber, this avoids the use of disposable materials, reducing costs and resource waste, and conforming to the concept of green construction. The inflatable component ventilates the inflatable chamber, causing the sealing membrane to expand and adhere tightly to the precast wall, which can quickly form a stable closed space, eliminating the need for on-site pouring and curing of sealing materials, simplifying the construction process, and effectively improving construction efficiency. Furthermore, because the sealing membrane adheres tightly to the precast wall, unlike the sealing material which is prone to cracking at the interface with the precast wall, it better ensures sealing performance, preventing grout leakage or incomplete grouting, thus guaranteeing the quality of grouting construction and the stability of the entire prefabricated structure. Simultaneously, the waterproof and airtight zipper, which can be opened and closed on the sealing membrane to selectively seal the air chamber, facilitates rapid deflation, shortens deflation time, improves construction efficiency, further enhances the practicality and operability of the inflatable template, and facilitates template reuse, increasing template utilization. Preferably, the inflation component is a one-way inflation valve. By adopting the above technical solution, the inflation component is set as a one-way inflation valve, which has a one-way flow characteristic. When air is introduced into the air chamber inside the sealing membrane, gas can only enter the air chamber from the outside through the one-way inflation valve and cannot flow out in the opposite direction. This method effectively prevents gas leakage after the air chamber is inflated and the sealing membrane adheres tightly to the precast wall, ensuring the sealing membrane remains inflated and tightly bonded to the precast wall, thus maintaining a stable and effective seal. Simultaneously, this unidirectional ventilation function makes the inflation process more convenient and efficient; operators only need to perform the inflation operation without worrying about gas backflow, improving construction efficiency. Furthermore, maintaining a stable air pressure within the air chamber reduces the need for multiple gas replenishments due to leakage, further lowering construction costs. It also avoids problems such as grout leakage or incomplete grouting caused by unstable air pressure leading to poor adhesion between the sealing membrane and the precast wall, ensuring the quality of grouting and the stability of the entire prefabricated structure. Preferably, the sealing membrane is a transparent, visible sealing membrane. By adopting the above technical solution, the transparent, visible sealing membrane allows construction personnel to directly observe the inflation status within the air chamber and the grouting process between the precast walls during grouting.Compared to existing methods that use sealing materials to seal the chamber without visual inspection of the internal conditions, this method allows for timely detection of problems such as uneven inflation, incomplete grouting, or grout leakage. Construction personnel can quickly take corresponding measures to address these issues, preventing undetected problems from affecting grouting quality and reducing the stability of the prefabricated structure. It also reduces unnecessary rework, thereby improving construction efficiency and ensuring the quality of grouting and the stability of the prefabricated structure. Preferably, the waterproof airtight zipper includes an airtight zipper and a waterproof cover covering the zipper. By adopting the above technical solution, the waterproof airtight zipper includes an airtight zipper and a waterproof cover covering the zipper. The airtight zipper itself can open and close the inflatable chamber for selective sealing, while the waterproof cover effectively prevents external water from entering the airtight zipper, avoiding rust and damage caused by water corrosion or affecting the normal opening and closing of the airtight zipper. This ensures the stable and reliable performance of the airtight zipper, extends its service life, and improves the sealing and durability of the entire inflatable template, guaranteeing the sealing effect of the grouting chamber. Preferably, the waterproof cover comprises two overlapping waterproof membranes with a gap between them. By adopting the above technical solution, the waterproof cover uses two overlapping waterproof membranes with a gap between them. This overlapping structure effectively prevents external moisture from directly contacting the airtight zipper, avoiding moisture seeping into the airtight chamber and affecting its airtightness. The gap allows the user to easily open and close the airtight zipper. This structure ensures the airtightness of the airtight chamber, maintains the normal working state of the reusable zipper-type inflatable template, improves the reliability and durability of the template, and reduces maintenance and replacement costs due to sealing problems. Preferably, the airtight zipper comprises: a zipper head and continuous covering fastening portions located on both sides of the zipper head, as well as a zipper head receiving portion and a zipper head stop portion located at both ends of the airtight zipper. By adopting the above technical solution, the airtight zipper is equipped with a zipper head and continuous covering fastening parts located on both sides of the zipper head. When the zipper head moves, the continuous covering fastening parts can tightly engage or disengage, realizing the opening and closing of the airtight zipper. The zipper head receiving part can accommodate the zipper head, allowing it to be stored when the zipper is not needed, preventing the zipper head from swinging freely and affecting the zipper's sealing performance. The zipper head stop prevents the zipper head from slipping off both ends of the zipper, ensuring that the zipper head can only move within the effective range of the zipper. This significantly improves the airtightness of the airtight zipper, ensures the sealing of the air-filled chamber, reduces air leakage, and thus improves the overall performance and stability of the reusable zipper-type inflatable template for the grouting chamber, reducing grouting quality problems caused by air leakage and improving the quality and efficiency of grouting construction for prefabricated structures. Preferably, the closed length of the airtight zipper is at least two-thirds of the length of the sealing membrane. By adopting the above technical solution, the closing length of the airtight zipper accounts for at least two-thirds of the length of the sealing film, which enables the airtight zipper to provide a larger sealing area when sealing the air-filled chamber.Because of the longer closure length of the airtight zipper, the seal between the sealing membrane and the precast wall is tighter and more stable, effectively reducing the possibility of air leakage in the air chamber and further enhancing the overall airtightness of the formwork. The larger closure range of the airtight zipper also better resists the influence of external pressure changes and environmental factors on the air chamber, ensuring stable air pressure inside the chamber. This allows the sealing membrane to remain tightly attached to the precast wall, ensuring the sealing effect of the grouting chamber and preventing grout leakage or incomplete grouting. This improves the quality of grouting construction in prefabricated structures and the stability of the entire structure. Simultaneously, this design facilitates the installation and disassembly of the formwork, promoting its reuse, reducing construction costs, and improving construction efficiency. Preferably, a handle is provided on the inner wall of the sealing membrane, located inside the air chamber. By adopting the above technical solution, since the handle is located on the inner wall of the sealing membrane inside the air chamber, when operators need to move or adjust the position of the sealing membrane, they can grasp the handle to apply force, avoiding slippage due to direct contact with the smooth surface of the sealing membrane, making the operation more convenient and faster. Simultaneously, when disassembling the inflatable template, workers can pull the handles to better separate the sealing membrane from the precast wall, reducing disassembly difficulty and time, further improving the efficiency of template reuse, and helping to reduce construction costs. Preferably, a sealing layer is provided at the connection between the handle and the sealing membrane. By adopting the above technical solution, since a sealing layer is provided at the connection between the handle and the sealing membrane, the sealing layer can fill any gaps that may exist at the connection, preventing air from leaking out from the gaps. This can maintain stable air pressure in the inflation chamber, allowing the sealing membrane to expand better and adhere tightly to the precast wall, ensuring the sealing of the grouting chamber, avoiding grout leakage during the grouting process, improving the quality of grouting construction, and also facilitating the reuse of the template, reducing resource waste, and improving construction efficiency. Preferably, there are four handles, which are distributed dispersedly within the inflation chamber. By adopting the above technical solution, four dispersed handles are provided within the inflation chamber. Due to their dispersed distribution, the positions of the handles are more reasonable, allowing operators to more easily grasp the handles from different directions and positions. Compared to a single or a few concentrated handles, four distributed handles can better balance the force. When operators lift or move the inflatable template, adjustments can be made promptly, reducing template deformation caused by uneven local stress and making operation smoother and safer. Furthermore, during handling, the handles in different positions can adapt to the habits and postures of different operators, further improving operational convenience and contributing to increased overall construction efficiency.

[0005] In summary, this application includes at least one of the following beneficial technical effects:

[0006] 1. Since the inflatable template of this application is composed of a sealing membrane, inflatable components and a waterproof and airtight zipper, the gas in the inflatable chamber can be released after use, making it convenient to store and use for the next construction. Therefore, the template can be reused, avoiding the high cost and resource waste caused by the sealing material as a disposable material, which is in line with the concept of green construction.

[0007] 2. Because the template of this application only needs to be set on the edge of the upper and lower precast walls with sealant, and then the air chamber is ventilated by the air inflator to expand the sealing membrane to form a closed boundary, there is no need to pour and cure the sealing material on site as in existing related methods, so the construction process is simplified and the construction efficiency is improved.

[0008] 3. Since the inner wall of the sealed membrane forms an air chamber, air can be supplied to the air chamber through the air inflator, causing the sealed membrane to expand and adhere tightly to the precast wall. This solves the problem of insufficient sealing caused by cracking at the interface between the sealing material and the precast wall, effectively preventing grout leakage or incomplete grouting, and ensuring the quality of grouting construction and the stability of the prefabricated structure. Attached Figure Description

[0009] Figure 1 This is a structural diagram of a reusable zipper-type inflatable template for a grouting chamber according to this application;

[0010] Figure 2 This is a cross-sectional internal structural diagram of a reusable zipper-type inflatable template for a grouting chamber according to this application;

[0011] Figure 3 This is a structural diagram of a waterproof and airtight zipper for a reusable zipper-type inflatable formwork for a grouting chamber, as described in this application.

[0012] Figure 4 This is a diagram illustrating the usage status of a reusable zipper-type inflatable formwork for a grouting chamber, as described in this application.

[0013] Figure 5 yes Figure 4 A magnified view of point A.

[0014] Explanation of reference numerals in the attached drawings: 1. Sealing membrane; 2. Inflatable component; 3. Waterproof and airtight zipper; 4. Inflatable chamber; 5. Wall; 6. Floor slab; 31. Airtight zipper; 32. Waterproof cover; 311. Slipper pull; 312. Covering fastening part; 313. Slipper pull receiving part; 314. Slipper pull stop part; 41. Handle part. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0016] This application provides a reusable zipper-type inflatable formwork for a grouting chamber, as referenced. Figure 1 and Figure 2It includes a sealing membrane 1, an inflatable component 2, and a waterproof and airtight zipper 3. In this embodiment, the inner wall of the sealing membrane 1 forms an inflatable chamber 4. The side of the sealing membrane 1 facing the user is provided with an openable and closable waterproof and airtight zipper 3 to achieve selective sealing of the inflatable chamber 4. The inflatable component 2 is located on the side of the sealing membrane 1 facing the user, that is, the waterproof and airtight zipper 3 and the inflatable component 2 are located on the same side. In this embodiment, the inflatable component 2 is a one-way inflation valve, which only allows air to pass into the inflatable chamber 4 from the outside.

[0017] Reference Figure 2 Specifically, in this embodiment, the inner wall of the sealing membrane 1 is provided with handles 41, which are located inside the inflation chamber 4. A sealing layer is provided at the connection between the handles 41 and the sealing membrane 1. There are four handles 41, distributed within the inflation chamber 4, facing each other in pairs at appropriate distances, facilitating two-handed operation by construction personnel. The handles 41 facilitate adjustment operations during template installation and disassembly, and the sealing layer prevents gas leakage from the connection between the handles 41 and the sealing membrane 1. The handles 41 are made of soft fabric, possessing a certain strength and comfort for easy gripping by construction personnel. The sealing layer can be a sealing strip, applied by adhesive or compression at the connection between the handles 41 and the sealing membrane 1, ensuring complete coverage of the joint. Specifically, the PVC sealing membrane 1 in this embodiment is transparent and visible, allowing construction personnel to directly observe the situation inside the inflation chamber 4 during construction, such as whether inflation is uniform and whether there are any leaks. The transparent, visible polyvinyl chloride (PVC) sealing membrane 1 typically possesses good flexibility and wear resistance. In this embodiment, the one-way inflation valve consists of a valve body, valve core, and spring, among other components. The structure of a one-way inflation valve is relatively common and will not be described in detail here. The one-way inflation valve is installed on the sealing membrane 1 via hot-melt welding or adhesive bonding. During installation, ensure a good seal at the connection between the one-way inflation valve and the sealing membrane 1, and that the contact surface between the valve body and the sealing membrane 1 is completely sealed to prevent air leakage. (Refer to...) Figure 3Specifically, the waterproof and airtight zipper 3 of this embodiment includes an airtight zipper 31 and a waterproof cover 32 covering the zipper. The airtight zipper 31 includes a zipper pull 311 and continuous covering fastening portions 312 located on both sides of the zipper pull 311, as well as zipper pull receiving portions 313 and zipper pull stop portions 314 located at both ends of the airtight zipper 31. The zipper pull 311 is used to pull the zipper to open and close it. The continuous covering fastening portions 312 enable the zipper to have good sealing performance after it is closed. The zipper pull receiving portion 313 is used to accommodate the zipper pull 311, and the zipper pull stop portion 314 prevents the zipper pull 311 from slipping out of the zipper. The airtight zipper 31 is arranged along the length of the sealing film 1, and its closed length accounts for at least two-thirds of the length of the sealing film 1, which can ensure that most of the air chamber 4 can be effectively sealed. The airtight zipper 31 is usually made of metal, which has good wear resistance and durability.

[0018] Furthermore, the water cover in this embodiment includes two overlapping waterproof membranes, with a gap between the two membranes allowing access to the airtight zipper 31. The waterproof cover 32 covers the outside of the airtight zipper 31. This design prevents water from directly penetrating into the zipper. The waterproof membrane is made of a rubber waterproof material.

[0019] Reference Figure 4 and Figure 5Specifically, in this embodiment, the sealing membrane 1 needs to be evenly coated with sealant on the contact surface between the sealing membrane 1 and the precast wall 5. Then, the sealing membrane 1 is pasted to the edges of the upper and lower precast walls 5 or the edges of the precast wall 5 and the floor slab 6 using sealant to ensure that the sealing membrane 1 is tightly attached to the precast wall 5, forming a closed boundary. A one-way inflation valve is used to ventilate the inflation chamber 4 so that the sealing membrane 1 expands and adheres tightly to the precast wall 5. A waterproof and airtight zipper 3 is set on the sealing membrane 1 to selectively seal the inflation chamber 4. Since the sealing membrane 1 in this embodiment is made of polyvinyl chloride, the cost is reduced and it can be reused, avoiding the waste of disposable sealing material. It is easy to install and does not require long-term curing because it expands and adheres to the wall 5. In particular, the sealing membrane 1 is pasted to the edges of the upper and lower precast walls 5 with sealant. The sealant is silicone sealant, which has good adhesion and waterproof properties, and can firmly fix the sealing membrane 1 to the wall 5, while preventing external moisture from entering the inflation chamber 4 and affecting the grouting construction. The implementation principle of this embodiment is as follows: Sealant is evenly applied to the contact surface between the transparent, visible PVC sealing film 1 and the precast wall 5. Silicone sealant is then used to adhere the sealing film 1 to the edges of the upper and lower precast walls 5 or the edges of the precast wall 5 and the floor slab 6, ensuring a tight fit with the wall 5 to form a sealed boundary. Next, a one-way inflation valve, consisting of a valve body, valve core, and spring, is installed on the user-facing side of the sealing film 1 using hot-melt welding or adhesive bonding, ensuring a good seal at the connection point. Then, air is introduced into the inflation chamber 4 using the one-way inflation valve, causing the sealing film 1 to expand and adhere tightly to the precast wall 5. Finally, a waterproof and airtight zipper 3 is installed along the length of the sealing film 1 on the user-facing side. This zipper includes an airtight... The airtight zipper 31 and the waterproof cover 32 covering it are composed of a zipper head 311, a continuous covering body fastening part 312, a zipper head receiving part 313, and a zipper head stop part 314. The closing length is at least two-thirds of the length of the sealing membrane 1. The material is metal. The waterproof cover 32 is composed of two overlapping waterproof membranes made of rubber waterproof material. A gap is formed between the two waterproof membranes to the airtight zipper 31 to prevent water from penetrating into the zipper. Finally, four handles 41 are distributed on the inner wall of the sealing membrane 1 inside the air chamber 4. They are opposite each other and appropriately spaced to facilitate the operation of the construction personnel with both hands. A sealing layer composed of sealing strips is set at the connection between the handles 41 and the sealing membrane 1 to prevent gas leakage and facilitate the quick installation and disassembly of the template by the construction personnel.

[0020] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reusable zipper-type inflatable formwork for grouting chambers, characterized in that, Includes a sealing membrane (1), an inflatable component (2), and a waterproof and airtight zipper (3); The inner wall of the sealing membrane (1) forms an air chamber (4), the sealing membrane (1) is provided with an air inflator (2), and the sealing membrane (1) can be set on the edge of the upper and lower prefabricated walls (5) with sealant to form a closed boundary; The inflatable component (2) is used to ventilate the inflatable chamber (4) so ​​that the sealing membrane (1) expands and adheres tightly to the prefabricated wall (5). The waterproof and airtight zipper (3) can be opened and closed on the sealing membrane (1) to achieve selective sealing of the air chamber (4).

2. The reusable zipper-type inflatable template for grouting chamber according to claim 1, characterized in that, The inflation component (2) is a one-way inflation valve.

3. The reusable zipper-type inflatable template for grouting chamber according to claim 1, characterized in that, The sealing film (1) is a transparent and visible sealing film.

4. The reusable zipper-type inflatable formwork for grouting chambers according to claim 1, characterized in that, The waterproof and airtight zipper (3) includes an airtight zipper (31) and a waterproof cover (32) covering the airtight zipper (31).

5. The reusable zipper-type inflatable formwork for grouting chambers according to claim 4, characterized in that, The waterproof cover (32) includes two overlapping waterproof membranes with a gap between them.

6. The reusable zipper-type inflatable formwork for grouting chambers according to claim 4, characterized in that, The airtight zipper (31) includes: a zipper head (311) and continuous covering fastening parts (312) located on both sides of the zipper head (311), as well as a zipper head receiving part (313) and a zipper head stop part (314) located at both ends of the airtight zipper (31).

7. The reusable zipper-type inflatable formwork for grouting chambers according to claim 4, characterized in that, The closure length of the airtight zipper (31) is at least two-thirds of the length of the sealing film (1).

8. The reusable zipper-type inflatable formwork for grouting chambers according to claim 1, characterized in that, The inner wall of the sealing membrane (1) is provided with a handle (41), which is located inside the air chamber (4).

9. The reusable zipper-type inflatable template for grouting chamber according to claim 8, characterized in that, A sealing layer is provided at the connection between the handle (41) and the sealing membrane (1).

10. The reusable zipper-type inflatable template for grouting chamber according to claim 8, characterized in that, The number of handles (41) is four, and the four handles (41) are distributed in the air chamber (4).

Images