Formwork device for forming preformed hole in concrete structure

Through the design of supporting components and loosening mechanisms, the problems of construction blockage and removal difficulties in the forming of reserved holes in concrete structures are solved, efficient and stable forming of reserved holes is achieved, and construction efficiency and structural integrity are improved.

CN223423621UActive Publication Date: 2025-10-10CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1
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Patent Information

Application Number
CN202422648749.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-10-10
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The existing technology has the problems of construction blockage risk, inability to remove the casing, and increased construction complexity and cost when forming the reserved holes in the concrete structure.

Method used

The support member and loosening mechanism design, including L-shaped members, support bolts and hexagonal nuts, forms a stable rectangular tubular structure, ensuring the reserved holes are stable in position during concrete pouring and can be easily disassembled through the loosening mechanism.

Benefits of technology

It improves the quality of reserved hole forming and construction efficiency, reduces construction difficulty and cost, ensures structural integrity and drainage function, and reduces construction errors and material consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a template device for preformed hole forming in a concrete structure, which comprises a support member, the support member comprises two L-shaped members and L-shaped concrete blocks, the two ends of the support member are provided with the L-shaped concrete blocks and loosening mechanisms, the loosening mechanisms are arranged on the support member, and the L-shaped concrete blocks are arranged on the L-shaped concrete blocks. The loosening mechanism is used for disassembling the supporting component after the concrete is formed; according to the formwork device for forming the preformed hole in the concrete structure, the problems that in the prior art, the construction blocking risk exists, a sleeve cannot be detached, construction is complex, and cost is increased are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, concretely relates to a formwork device of reserved hole forming in concrete structure. BACKGROUND

[0002] In current construction engineering, in order to prevent building displacement or damage due to excessive water pressure, concrete retaining wall drainage hole is an important design element. By reserving drainage channels on the retaining wall, the water accumulated in the surrounding soil can be quickly discharged, thereby reducing the water pressure of the soil and ensuring the long-term stability and safety of the building. In the rainy season or in the environment with high soil moisture content, the drainage hole can effectively alleviate the pressure of the soil on the building retaining wall, and is an important measure to protect the building structure.

[0003] The prior art usually adopts the method of reserving a hole in the wall concrete structure to achieve this purpose, and the specific process is as follows: before pouring the retaining wall, workers will place a sleeve at the predetermined position of the concrete structure according to the design drawing, as a reserved space for the drainage hole. In order to prevent the concrete slurry from entering the sleeve during concrete pouring, the sleeve generally needs to be temporarily plugged, and measures are taken to prevent it from being displaced or skewed during pouring. In addition, in order to resist the structural load, reinforcing bars are usually arranged at the hole to ensure the strength of the concrete structure around the hole and avoid cracking and other problems. However, this method still has some problems: construction blockage risk: during concrete pouring, even if the sleeve is plugged, the concrete slurry may still enter the sleeve due to vibration and other reasons, causing blockage and affecting the subsequent function of the drainage hole. The sleeve cannot be removed: after the formwork is removed and the construction is completed, the sleeve cannot be removed, which may leave a large structural defect and affect the drainage efficiency of the hole. Construction complexity and cost increase: due to the need to set the sleeve and reinforcing bars in the construction, and to position and fix the sleeve, the existing method is complicated and relatively high in cost. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a formwork device of reserved hole forming in concrete structure, solving the problems of construction blockage risk, inability to remove the sleeve and construction complexity and cost increase in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a formwork device of reserved hole forming in concrete structure, comprising:

[0006] The support member comprises two L-shaped members;

[0007] The two ends of the support member are provided with L-shaped concrete blocks;

[0008] A loosening mechanism is provided on the supporting member and is used to disassemble the supporting member after the concrete is formed.

[0009] Preferably, the loosening mechanism includes a supporting bolt, and the two L-shaped members are connected and fixed by at least one supporting bolt, and the outer end of the supporting bolt passes through the L-shaped concrete block and is fastened by a hexagonal nut connected to the supporting bolt.

[0010] Preferably, the hexagonal nut is threadedly connected to the supporting bolt.

[0011] Preferably, the L-shaped members are arranged parallel to each other and connected by supporting bolts to form a rectangular tubular structure.

[0012] Preferably, the outer surface of the L-shaped member is provided with an anti-slip texture.

[0013] Preferably, an exhaust hole is provided at the installation position of the support member.

[0014] Preferably, a shock-absorbing gasket is provided between the L-shaped member and the supporting bolt.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] The formwork device for forming the reserved holes in this concrete structure, through the design of the support member and the loosening mechanism, ensures that the position of the reserved holes is stable during the concrete pouring and curing process, avoiding molding defects caused by the displacement, loosening or clogging of the sleeve, thereby improving the quality of the reserved hole molding and ensuring the integrity and drainage function of the structure. The loosening mechanism utilizes the detachable design of the support bolts and hexagonal nuts, so that the support member can be quickly disassembled after the concrete is formed. This design simplifies the construction process and avoids the problem of the sleeve being unable to be removed in the existing technology, thereby improving construction efficiency and reducing maintenance difficulty. The two L-shaped members are arranged parallel to each other and connected by support bolts to form a rectangular tubular structure. This not only enhances the overall rigidity of the support member, but also ensures that the reserved hole is not easily deformed during the pouring process. The outer surface of the support member is designed with an anti-slip texture, which can more firmly fix the formwork during the concrete pouring process and reduce the risk of slippage. At the same time, by adding shock-absorbing gaskets between the L-shaped components and the supporting bolts, the impact of vibration during construction is further reduced. Exhaust holes are designed at the installation position of the supporting components, which can discharge excess gas in time during the concrete pouring process and reduce the formation of bubbles, thereby avoiding affecting the overall density and structural performance of the concrete, improving the molding quality, and solving the problems of construction blockage risks, inability to remove the casing, complex construction and increased costs in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the support structure of the utility model;

[0019] Figure 3 This is a plan view of the connection between the two ends of the support member of the utility model and the concrete.

[0020] In the figure: 1. Support member; 11. L-shaped member; 2. L-shaped concrete block; 3. Loosening mechanism; 31. Support bolt; 32. Hexagonal nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 3 As shown, a formwork device for forming pre-reserved holes in concrete structures includes a support member 1, which is composed of two L-shaped members 11. L-shaped concrete blocks 2 are respectively provided at both ends of the support member 1, and a release mechanism 3 is provided on the support member 1. The release mechanism 3 is used to remove the support member 1 after the concrete is formed.

[0023] The template device realizes the formation of the reserved hole through the cooperation of the support member 1 and the loosening mechanism 3. The L-shaped member 11 and the L-shaped concrete block 2 together constitute the frame of the reserved hole. When pouring concrete, the support member 1 maintains the stability of the structure. After the concrete is solidified and formed, the support member 1 can be smoothly removed from the solidified concrete structure through the action of the loosening mechanism 3, thereby forming a reserved hole, ensuring the integrity of the concrete structure and the accuracy of the hole forming. The design of this template device is to be able to easily disassemble the support member, avoiding the problem of difficult disassembly or damage to the concrete structure around the reserved hole in the traditional method, and ensuring the quality of the hole forming. The overall structure is easy to operate, and in actual application it can improve the reuse rate of the template and reduce construction costs.

[0024] The support member 1 can be made of steel, aluminum alloy, or other durable materials suitable for the construction environment. The release mechanism 3 can utilize other convenient disassembly connection methods, such as threaded connections or latches, to accommodate different disassembly requirements. The shape and size of the L-shaped concrete block 2 can be adjusted appropriately based on the size of the pre-recorded hole to meet different construction requirements.

[0025] The release mechanism 3 includes a support bolt 31, and the two L-shaped members 11 are connected and fixed by at least one support bolt 31. The outer end of the support bolt 31 passes through the L-shaped concrete block 2 and is tightened by a hexagonal nut 32 connected to the support bolt 31. The combination of the support bolt 31 and the hexagonal nut 32 forms a stable connection structure, maintaining the stability of the L-shaped member 11 during concrete pouring and molding. After the concrete solidifies, the hexagonal nut 32 is removed, allowing the support bolt 31 to be released from the L-shaped concrete block 2, thereby achieving smooth removal of the support member 1 and ensuring the formation of the concrete pre-hole. This release structure allows the support member 1 to be easily installed and removed, especially in large-scale concrete pouring projects, by reducing manpower requirements and improving construction efficiency. At the same time, it ensures the accuracy of the pre-hole molding and reduces construction errors.

[0026] The support bolt 31 can be made of a material with higher tensile strength to accommodate greater load requirements. The hexagonal nut 32 can be replaced with other forms of quick connectors, such as a spring locking device, to further simplify the disassembly process.

[0027] Hexagonal nut 32 is threadedly connected to support bolt 31. Hexagonal nut 32 is fixed to the end of support bolt 31 through the threaded connection, ensuring stable support during concrete pouring. When disassembly is required, the support bolt 31 is released by loosening the hexagonal nut 32, thereby removing the support member 1. The threaded connection provides a secure fastening effect and can be quickly disassembled by twisting, simplifying the operation, improving construction convenience, and reducing the impact on the surrounding concrete structure.

[0028] Threaded connections with anti-loosening designs, such as nuts with nylon washers, can be replaced to enhance vibration resistance and prevent loosening.

[0029] The L-shaped members 11 are arranged parallel to each other and connected by support bolts 31 to form a rectangular tubular structure. By arranging two L-shaped members 11 in parallel and connecting them with support bolts 31, a closed rectangular tubular structure is formed. During the concrete pouring process, this structure provides stronger support, ensuring the neatness and stability of the edges of the reserved holes. The rectangular tubular structure makes the reserved hole template more stable during concrete pouring, avoiding the problem of inaccurate reserved hole dimensions due to structural deformation, and improving the safety of the template and the forming effect.

[0030] The arrangement of the L-shaped components 11 can be adjusted according to needs, for example, forming other cross-sectional shapes to meet the needs of non-standard shaped reserved holes and expand the scope of application.

[0031] The outer surface of the L-shaped component 11 is provided with an anti-slip texture. The design of the anti-slip texture increases the friction between the L-shaped component 11 and the surrounding concrete, avoids position displacement during the pouring process, and ensures the precise position of the reserved hole. The anti-slip texture improves the stability of the formwork device and reduces the error caused by component sliding during the pouring process, thereby improving the forming accuracy of the concrete reserved hole.

[0032] The shape and depth of the anti-slip texture can be adjusted according to the characteristics of the concrete, for example, a raised dot or grid texture can be used to adapt to different environments and usage requirements.

[0033] An exhaust hole is provided at the installation position of the supporting member 1. The exhaust hole is designed to discharge the air in the formwork during the concrete pouring process to prevent air from remaining and forming bubbles, which affects the quality of the concrete. By setting the exhaust hole, the bubble problem can be effectively reduced, the overall strength and molding effect of the concrete reserved hole can be improved, and the edge of the reserved hole can be smoother.

[0034] The position and number of the exhaust holes can be adjusted according to the gas accumulation during pouring to optimize the exhaust effect; exhaust slots can also be added to the concrete block 2 or other positions to achieve better exhaust effect.

[0035] An anti-vibration gasket is provided between the L-shaped member 11 and the support bolt 31 to slow down the conduction of vibration and prevent loosening or displacement due to vibration when pouring concrete. The anti-vibration gasket effectively improves the vibration resistance of the formwork device, avoids the influence of vibration on the hole forming accuracy during construction, and ensures the stability and durability of the device.

[0036] The material of the shock-absorbing gasket can be selected from durable rubber, silicone or other materials with good shock-absorbing properties to adapt to different construction environment requirements and ensure better vibration suppression effect.

[0037] Working process: To construct the support structure 1 for the pre-reserved hole in the concrete structure, support bolts 31 are first inserted through the two L-shaped members 11 to form a complete support structure 1 framework. The ends of the support bolts 31 are fastened with large hexagonal nuts 32. Two L-shaped concrete blocks 2 are securely sleeved onto the outer sides of the support bolts 31. By tightening the nuts, the two L-shaped concrete blocks 2 fit snugly onto the support structure, forming a rectangular tubular structure. The internal dimensions of this rectangular tubular structure are the standard dimensions of the pre-reserved hole.

[0038] During the pre-formed hole formation process, the entire support member 1 is positioned at the designated hole location. A dedicated wrench is then used to tighten the support bolts, ensuring that the various parts of the support member 1 maintain close contact and prevent the structure from loosening or shifting during the concrete pouring and forming process. The connection design of the support bolts 31 ensures that the two L-shaped concrete blocks 2 fit tightly together, ensuring that the pre-formed hole has a standard, smooth, and stable profile.

[0039] After the concrete is poured and fully solidified, construction workers can use special tools to loosen and rotate the support bolts 31 to loosen the support bolts 31 from the large hexagonal nuts 32 and gradually remove the support member 1. Since this design allows the support bolts 31 and the support member 1 to be separated from the concrete, construction workers can easily remove the support member as a whole, thereby forming a reserved hole with precise size and smooth surface. In addition, since the main components such as the support bolts 31 are not damaged, they can be reused after removal, thereby reducing construction costs and material consumption.

[0040] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A template device for forming a reserved hole in a concrete structure, characterized in that: include: A supporting member (1), the supporting member (1) comprising two L-shaped members (11); L-shaped concrete blocks (2), with L-shaped concrete blocks (2) being provided at both ends of the support member (1); A loosening mechanism (3) is provided on the supporting member (1), and the loosening mechanism (3) is used to disassemble the supporting member (1) after concrete is formed.

2. A template device for forming a reserved hole in a concrete structure according to claim 1, characterized in that: The loosening mechanism (3) comprises a supporting bolt (31), and the two L-shaped members (11) are connected and fixed by at least one supporting bolt (31). The outer end of the supporting bolt (31) passes through the L-shaped concrete block (2) and is fastened by a hexagonal nut (32) connected to the supporting bolt (31).

3. A template device for forming a reserved hole in a concrete structure according to claim 2, characterized in that: The hexagonal nut (32) is threadedly connected to the supporting bolt (31).

4. A template device for forming a reserved hole in a concrete structure according to claim 2, characterized in that: The L-shaped components (11) are arranged parallel to each other and connected by supporting bolts (31) to form a rectangular tubular structure.

5. The formwork device for forming a reserved hole in a concrete structure according to claim 1, characterized in that: The outer surface of the L-shaped component (11) is provided with anti-slip texture.

6. A template device for forming a reserved hole in a concrete structure according to claim 1, characterized in that: An exhaust hole is provided at the installation position of the support member (1).

7. A template device for forming a reserved hole in a concrete structure according to claim 2, characterized in that: A shock-absorbing gasket is provided between the L-shaped member (11) and the supporting bolt (31).