A partition airbag for reinforced beam-column node beam

Abstract

The present invention relates to the field of construction engineering technology, and more specifically to a partition airbag for a reinforced beam-column node beam, comprising an air nozzle and an airbag, the air nozzle being disposed at the top of the airbag. The airbag is characterized in that the cross-section is star-shaped, and the airbag is a sac-shaped structure formed by connecting a head, side walls, and a bottom cover. The bottom of the airbag is provided with a water channel interlayer, and a water injection hole is provided in the center of the water channel interlayer. The periphery of the water channel interlayer is consistent with the bottom cover contour of the airbag bottom. A hanging strap is provided around the water injection hole. When in use, the star corners of two adjacent airbags are arranged crosswise. After use, the hanging strap is lifted, the airbag is inverted, and water is injected into the water injection hole. The water flows out from the intermittent seams to rinse the surface of the airbag. After drying, the airbag is folded and stored for next use. The advantages of the present invention are: solving the technical problem of easy mixing of concretes of different strengths during existing slab beam construction; and solving the problems of the existing technology that cannot be dismantled and the construction steps are complicated, thereby ensuring the construction quality of the entire project.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a partition airbag for a reinforced beam-column node beam. Background Art

[0002] Concrete pouring of varying strength grades in construction projects requires the use of barriers. However, traditional barrier tools are cumbersome and inefficient to install, and the quality of the barrier is difficult to guarantee. Improper placement of the wire mesh can lead to waste of high-grade concrete, increasing construction costs and compromising quality. Traditional barrier methods employ quick-close mesh, which does not need to be removed later. However, these meshes are not reusable, are a one-time investment, and are expensive. Quick-close meshes involve tying wire mesh to the rebar for interception. However, due to the limited airtightness and strength of the wire mesh, after the concrete is poured, the lateral pressure of the concrete can break through the mesh, allowing the high-strength concrete to flow into the surrounding beams and slabs, resulting in wasted concrete and increased costs. Chiseling and processing the interface also becomes a major headache for construction workers, hindering quality assurance. Furthermore, after the side formwork of the beams and columns is removed, the concrete color is inconsistent, and the boundary is very obvious. Manual chiseling of the concrete interface is labor-intensive, difficult to guarantee quality, and requires significant labor. Due to the large number of steel bars and anchored ends at the column-slab junction, quick-and-easy mesh is difficult to place. If it is forced into place, the excessive penetration of steel bars will damage the mesh's structure, rendering it ineffective. If the concrete is not vibrated densely, the previously poured concrete and the mesh will not be tightly bonded, which can easily cause gaps between the mesh and the concrete surface. During installation, the mesh is exposed on the concrete surface, causing secondary treatment at the boundary. In concrete with waterproofing requirements, the mesh cannot be tightly bonded to the concrete, resulting in gaps between the mesh and the concrete, causing leakage. Therefore, eliminating outdated construction techniques and finding recyclable alternatives have become urgent issues.

[0003] The Chinese utility model patent with application number 202220691574.8 discloses a high- and low-grade concrete partition airbag for beams and columns, including an outer sac body, a top platform and an outer wall fitting. The top of the outer sac body is fixedly connected to the top platform, the middle part of the top platform is fixedly connected to the air intake channel, the top outer wall of the air intake channel is fixedly connected to an external threaded section, the outer wall of the external threaded section is overlapped and connected with a sealing cover, the outer wall of the outer sac body is fixedly connected to a wear-resistant layer, the wear-resistant layer can reduce the degree of wear of the outer sac body, the edges and corners of the side handles are all curved, which can prevent the side handles from causing injuries to the hands of the staff, and the fitting scraping mechanism can assist the staff to quickly scrape the concrete residue on the outer wall of the airbag for easy cleaning.

[0004] The Chinese utility model patent application number 202220812609.9 discloses a building stubble barrier airbag, comprising an airbag and an air nozzle, the air nozzle being arranged at the top center portion of the airbag, and a protective cover being arranged on the outside of the airbag. A narrow opening for inserting the air nozzle is arranged at the upper center portion of the airbag, and a first sealing baffle and a second sealing baffle are arranged on the outer wall of the air nozzle, the second sealing baffle being located on the top inner side of the airbag, and the first sealing baffle being arranged on the top outer side of the protective cover. A hollow cylindrical air hole is arranged at the top of the air nozzle, and an air nozzle cover is arranged on one side of the cylindrical air hole, and the air nozzle cover is connected to the cylindrical air hole by a connecting strip. An anti-leakage air plug is arranged inside the air nozzle, and an air guide tube is arranged at the bottom of the air nozzle. The sealing performance of the airbag is improved to prevent air leakage of the airbag, and at the same time, the pressure resistance of the airbag is improved, reducing the harm caused by the explosion of the airbag.

[0005] It can be seen that the complete isolation of concrete of different strength grades in the core area of ​​beam-column joints has gradually become a technical "bottleneck" for cost control and quality improvement. Partition airbags have their unique advantages as a solution, but there are still quality risks in the implementation process, and the high breakage rate and cleaning problems of repeated use still need to be solved urgently. Summary of the Invention

[0006] The purpose of the present invention is to provide a reinforced partition airbag for beam-column node beams, which overcomes the shortcomings of the existing technology. By adopting a reinforced internal skeleton, the partition airbag has a certain strength in the non-inflated state, which is convenient for passing through the layers of steel mesh to reach the bottom side of the concrete isolation surface with different strengths; a water channel interlayer and a water injection hole are provided. After use, the water injection hole is connected to the tap water pipe, and the surface of the airbag can be quickly cleaned for reuse.

[0007] To achieve the above object, the present invention adopts the following scheme:

[0008] A partition airbag for a reinforced beam-column node beam comprises an air nozzle and an airbag, wherein the air nozzle is arranged at the top of the airbag, and is characterized in that the cross-section of the airbag is star-shaped, and the airbag is a bag-shaped structure formed by connecting a head, a side wall and a bottom cover. A water channel interlayer is provided at the bottom of the airbag, and a water injection hole is provided in the center of the water channel interlayer. The periphery of the water channel interlayer is consistent with the bottom cover contour of the bottom of the airbag, and the outer edge of the water channel interlayer and the bottom cover are connected by intermittent stitching or bonding. A hanging strap is provided around the water injection hole for hanging. When in use, the star corners of two adjacent airbags are arranged crosswise. After use, the hanging strap is lifted to invert the airbag, and water is injected into the water injection hole. The water flows out from the intermittent stitching to rinse the surface of the bag. After drying, the bag is folded and stored for next use.

[0009] Furthermore, the star shape is any one of a triangular star, a five-pointed star, a seven-pointed star, and a nine-pointed star.

[0010] Furthermore, the material of the water channel interlayer is a nylon base with an organic silicone coating, and the thickness is 0.5~1mm.

[0011] Furthermore, the head, side walls and bottom cover are made of nylon cloth, and the surface is coated with a silicone rubber waterproof layer.

[0012] Furthermore, the water injection hole is provided with a thread and is matched with a thread plug.

[0013] Furthermore, a central column is fixedly connected to the interior of the airbag from the air nozzle to the bottom cover. When the airbag is stored, the corners of the airbag are folded around the central column like an umbrella.

[0014] Furthermore, the central column is made of any one of steel bars, wooden rods, and plastic rods.

[0015] Furthermore, the diameter of the central bone column is 20-35 mm, corresponding to a maximum outer diameter of the airbag of 400-500 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) By adopting an enhanced internal skeleton structure, the partition airbag has a certain strength in the non-inflated state. The airbag can be folded around the internal skeleton like an umbrella, and the partition airbag can be easily passed through the layers of steel mesh to the bottom concrete isolation surface of different strengths. The internal skeleton structure can withstand a certain downward compaction force and rotational force, which is conducive to the closer arrangement of adjacent airbags and prevent leakage during use;

[0018] 2) A water channel interlayer and a water injection hole are provided at the bottom of the airbag. After use, the airbag can be hung upside down and the water injection hole can be connected to the tap water pipe to quickly clean the surface of the airbag for reuse.

[0019] 3) The inverted cleaning state can prevent foreign matter from being rushed into the air nozzle during cleaning, which would affect the sealing of the airbag; the water channel interlayer at the bottom forms a double-layer structure at the bottom of the airbag, which increases protection and prevents it from being punctured by steel bars during delivery.

[0020] 4) The partition airbag of the present invention can solve the technical problem of easy mixing of concrete of different strengths during the construction of slab beams in the prior art; and solve the problem that the prior art cannot be dismantled and the construction steps are complicated, thereby ensuring the construction quality of the entire project. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the storage state of an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the waterway sandwich structure in an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the use state of an embodiment of the present invention;

[0025] In the figure: 1-air nozzle; 2-air bag; 3-head; 4-side wall; 5-bottom cover; 6-water channel interlayer; 7-water injection hole; 8-hanging strap; 9-middle column; 10-thread plug. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0029] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention.

[0032] See Figure 1 -4 is a schematic diagram of the structure of an embodiment of a partition airbag for a reinforced beam-column node beam according to the present invention. It includes an air nozzle 1 and an airbag 2. The air nozzle 1 is located at the top of the airbag 2. The airbag 2 has a star-shaped cross-section and is a sac-shaped structure formed by connecting a head 3, side walls 4, and a bottom cover 5. A water channel interlayer 6 is provided at the bottom of the airbag 2, with a water injection hole 7 centered in the water channel interlayer 6. The perimeter of the water channel interlayer 6 is consistent with the contour of the bottom cover 5 at the bottom of the airbag 2. The outer edges of the water channel interlayer 6 and the bottom cover 5 are connected by intermittent stitching or bonding. A hanging strap 8 is provided around the water injection hole 7 for hanging. A central column 9 is fixedly connected to the interior of the airbag 2 from the air nozzle 1 to the bottom cover 5. The central column 9 has a diameter of 25mm, corresponding to the maximum outer diameter of the airbag 2 of 450mm. This embodiment is used for the blocking operation during the pouring of concrete of different strength grades in construction projects to prevent the mixing of concrete of different strengths during slab beam construction, which affects the quality of the project.

[0033] When storing, the corners of the airbag 2 are folded around the central column 9 like an umbrella. The material of the waterway interlayer 6 is a nylon base with an organic silicone coating, with a thickness of 0.5~1mm. The head 3, side wall 4 and bottom cover 5 are sewn from nylon cloth, and the surface is coated with a silicone rubber waterproof layer with a thickness of 0.6~0.8mm. The water injection hole 7 is provided with a thread and a matching wire plug 10 to prevent foreign matter from entering and affecting cleaning. The presence of the central column 9 gives the partition airbag a certain strength as a whole. By applying force to the central column 9, the partition airbag can be lifted, pressed, twisted, etc. without worrying about the strength of the airbag body.

[0034] When using the embodiment of the present invention, first insert it into the steel bar gap at the junction of different strength concretes during slab beam construction in a folded storage state, press it down tightly, inflate the air nozzle to make the airbag bulge, then rotate the airbag to adjust the position so that the star angles of two adjacent airbags 2 are arranged crosswise, continue to inflate the airbags so that the adjacent airbags are tightly connected, and then the concrete pouring construction can be carried out. After use, wait until the concrete reaches the initial setting strength, deflate the airbag from the air nozzle, and then pull out the airbag. When cleaning, lift the hanging strap 8, turn the airbag 2 upside down, remove the screw plug 10, and inject water into the water injection hole 7. The water flows out from the intermittent suture seam to rinse the surface of the airbag, use a brush to clean the surface dirt, blow dry and fold it for storage for next use.

[0035] The star shape of the embodiment of the present invention can be any of a three-pointed star, a five-pointed star, a seven-pointed star, and a nine-pointed star. In the embodiment, a five-pointed star is used. This odd number of star corners can effectively avoid interference and stacking of star corners when two airbags are combined, thereby enabling rapid deployment of partitioned airbags and easily achieving the sealing requirements between adjacent airbags. This is because the star corners, when compressed, have greater contact stress, which tightens the joints.

[0036] In the embodiment, the central column 9 is made of any of steel, wood, or plastic, as long as it is lightweight and strong enough. The ends of the central column 9 are connected to the air nozzle and the bottom cover, respectively, ensuring unobstructed airway and sufficient connection strength. This connection method can adopt various existing methods and is not the innovation of the present invention. The present invention can be promoted and applied through standardized mass production, and its size and specifications can be selected according to the application, thus having a wide range of applications.

[0037] The above descriptions are merely limited embodiments of the present invention and do not limit the technical scope of the present invention. Any modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A partition airbag for a reinforced beam-column node beam, comprising an air nozzle and an airbag, wherein the air nozzle is arranged on the top of the airbag, and is characterized in that: The cross-section of the airbag is star-shaped, and the airbag is a bag-shaped structure formed by connecting a head, a side wall and a bottom cover. The bottom of the airbag is provided with a water channel interlayer, and a water injection hole is provided in the center of the water channel interlayer. The periphery of the water channel interlayer is consistent with the bottom cover contour of the bottom of the airbag, and the outer edge of the water channel interlayer and the bottom cover are connected by intermittent stitching or bonding. A hanging strap is provided around the water injection hole. When in use, the star corners of two adjacent airbags are arranged crosswise. After use, the hanging strap is lifted to turn the airbag upside down and water is injected into the water injection hole. The water flows out from the intermittent stitching to rinse the surface of the airbag. After drying, it is folded and stored for next use. The interior of the airbag is fixedly connected with a central bone column from the air nozzle to the bottom cover. When stored, the corners of the airbag are folded around the central bone column like an umbrella. The star shape is any one of a three-pointed star, a five-pointed star, a seven-pointed star, and a nine-pointed star.

2. The partition airbag for a reinforced beam-column node beam according to claim 1, characterized in that: The material of the water channel interlayer is a nylon base with an organic silicone coating, and the thickness is 0.5-1 mm.

3. The partition airbag for a reinforced beam-column node beam according to claim 1, characterized in that: The head, side wall and bottom cover are made of nylon cloth heat-sealed or sewn, and the surface is coated with a silicone rubber waterproof layer.

4. The partition airbag for a reinforced beam-column node beam according to claim 1, characterized in that: The water injection hole is provided with a thread and is matched with a thread plug.

5. The partition airbag for a reinforced beam-column node beam according to claim 1, characterized in that: The central column is made of any one of steel bars, wooden rods and plastic rods.

6. The partition airbag for a reinforced beam-column node beam according to claim 1, characterized in that: The diameter of the central bone column is 20-35 mm, and the maximum outer diameter of the corresponding airbag is 400-500 mm.

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