Construction device for reserving holes

By using a perforated template consisting of a panel and support rods, the problem of difficult removal of wooden templates was solved, the accuracy of the reserved holes and the stability of the concrete structure were achieved, and the difficulties of removal and damage were avoided.

CN224468783UActive Publication Date: 2026-07-07YUNNAN CHIHONG ZN & GE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN CHIHONG ZN & GE CO LTD
Filing Date
2025-10-10
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional wooden formwork tends to stick to the concrete after it has been poured, making it difficult to remove and affecting the accuracy of the pre-drilled holes and the integrity of the concrete structure.

Method used

A perforated template consisting of four sets of first and second enclosure panels, combined with support rods and sealing bolts, forms a stable internal support frame, increasing the contact area with concrete and providing stable support through the support rods to avoid demolition.

Benefits of technology

It improves the dimensional accuracy of reserved holes and the integrity of concrete structures, reduces formwork removal work, and avoids the problem of difficult removal of traditional wooden formwork.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a construction device for reserving a hole and relates to the technical field of track construction. The construction device for reserving a hole comprises a hole formwork composed of four groups of first surrounding plates and second surrounding plates, a supporting rod and a plugging bolt. The hole formwork is adopted to replace an existing wooden formwork, the hole formwork is not removed after pouring, serves as a part of a foundation, can improve the integrity of the reserved hole and the foundation when subsequent secondary pouring is carried out, can reduce the formwork removal engineering, and avoids the technical difficulty that a traditional wooden formwork is difficult to remove.
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Description

Technical Field

[0001] This application relates to the field of track construction technology, and in particular to a construction device for pre-drilling holes. Background Technology

[0002] During track installation, pre-drilled holes are required to ensure accurate installation of track components.

[0003] Currently, wooden formwork is typically used as the molding mold for pre-reserved holes. The pre-reserved holes required for track installation are numerous and small in size. Traditional wooden formwork needs to be removed after the concrete pouring and installation are completed. However, because the wooden formwork is prone to sticking to the concrete, the demolding operation is difficult. Moreover, removing the wooden formwork can easily damage the already formed concrete foundation, which not only affects the molding accuracy of the pre-reserved holes but also undermines the integrity of the concrete structure. Utility Model Content

[0004] To solve or partially solve the problems existing in the related technologies, this application provides a construction device for pre-reserved holes, which can ensure the dimensional accuracy of the pre-reserved holes and avoid the technical difficulties of dismantling traditional wooden formwork.

[0005] This application provides a construction device for pre-drilling holes, comprising:

[0006] The hole template consists of four sets of first and second enclosure panels, support rods, and sealing bolts;

[0007] The first enclosure is a bent steel plate. Fixing plates are provided on both sides of the first enclosure. The fixing plates and the side walls of the first enclosure form a fixing groove. First connecting holes are provided on the fixing plates and the first enclosure.

[0008] The second enclosure is a bent steel plate, and second connecting holes are provided on both sides of the second enclosure;

[0009] The side wall of the second enclosure is fixedly installed in the fixing groove of the first enclosure, and the four sets of the first enclosure and the second enclosure after installation form a hole template.

[0010] The support rod consists of four rods, each with a fixing thread at both ends. The four support rods are installed in a staggered manner in the first and second connecting holes by bolts to support the hole template.

[0011] The sealing bolt is installed in the first and second connecting holes where the support rod is not installed.

[0012] Optionally, in some embodiments of this application:

[0013] The first panel is a steel plate that has been bent five times, with each bend angle being 135°.

[0014] The second panel is a steel plate that has been bent six times, with each bend angle being 135°.

[0015] Optionally, in some embodiments of this application:

[0016] A positioning plate is provided on the outer wall of the first enclosure;

[0017] The positioning plate is provided with positioning through holes.

[0018] Optionally, in some embodiments of this application:

[0019] A sealing gasket is provided at the joint of the support rod.

[0020] Optionally, in some embodiments of this application:

[0021] The outer surfaces of the first and second enclosures are decorated with raised and recessed patterns.

[0022] The technical solution provided in this application may include the following beneficial effects:

[0023] This application uses four sets of first and second enclosure plates to form a hole template. The concave and convex pattern of the hole template increases the contact area with concrete, which can improve the bonding effect with concrete. At the same time, by setting and installing support rods, a stable internal support frame can be formed, which can effectively reduce the deformation of the hole template during pouring and ensure the dimensional accuracy of the reserved holes.

[0024] This application uses perforated formwork instead of existing wooden formwork, which is not removed after pouring and serves as part of the foundation. This improves the integrity of the pre-reserved holes and the foundation for subsequent secondary pouring, while also reducing the formwork removal work and avoiding the technical difficulties of removing traditional wooden formwork.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0026] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0027] Figure 1 This is a schematic diagram of an overall structure of the construction device in an embodiment of this application;

[0028] Figure 2 This is a structural schematic diagram of the first enclosure plate in an embodiment of this application;

[0029] Figure 3 This is a structural schematic diagram of the second enclosure plate in an embodiment of this application;

[0030] Figure 4 This is a structural schematic diagram of a support rod in an embodiment of this application.

[0031] Reference numerals: 1-First enclosure plate, 101-Fixing plate, 102-Fixing groove, 103-First connecting hole, 104-Positioning plate, 105-Positioning through hole, 2-Second enclosure plate, 201-Second connecting hole, 3-Support rod, 301-Fixing thread, 302-Sealing gasket, 4-Sealing bolt. Detailed Implementation

[0032] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0033] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] During track installation, pre-drilled holes are required to ensure accurate installation of track components.

[0037] Currently, wooden formwork is typically used as the molding mold for pre-reserved holes. The pre-reserved holes required for track installation are numerous and small in size. Traditional wooden formwork needs to be removed after the concrete pouring and installation are completed. However, because the wooden formwork is prone to sticking to the concrete, the demolding operation is difficult. Moreover, removing the wooden formwork can easily damage the already formed concrete foundation, which not only affects the molding accuracy of the pre-reserved holes but also undermines the integrity of the concrete structure.

[0038] To address the aforementioned issues, this application provides a construction device for pre-drilled holes, which ensures the dimensional accuracy of the pre-drilled holes and avoids the technical difficulties of dismantling traditional wooden formwork.

[0039] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0040] Figure 1 This is a schematic diagram of an overall structure of the construction device in an embodiment of this application;

[0041] Figure 2 This is a structural schematic diagram of the first enclosure plate in an embodiment of this application;

[0042] Figure 3 This is a structural schematic diagram of the second enclosure plate in an embodiment of this application;

[0043] Figure 4 This is a structural schematic diagram of a support rod in an embodiment of this application.

[0044] See Figure 1-4 A construction device for pre-reserved holes includes: a hole template consisting of four sets of first enclosure plates 1 and second enclosure plates 2, a support rod 3, and sealing bolts 4.

[0045] The first enclosure 1 is a bent steel plate. Fixing plates 101 are provided on both sides of the first enclosure 1. The fixing plates 101 and the side walls of the first enclosure 1 form fixing grooves 102. First connecting holes 103 are provided on the fixing plates 101 and the first enclosure 1.

[0046] The second enclosure 2 is a bent steel plate, and second connecting holes 201 are provided on both sides of the second enclosure 2.

[0047] The side wall of the second enclosure 2 is fixedly installed in the fixing groove 102 of the first enclosure 1. After installation, the four sets of the first enclosure 1 and the second enclosure 2 form a hole template.

[0048] Specifically: the first panel 1 is a steel plate that is bent five times, with each bending angle being 135°; the second panel 2 is a steel plate that is bent six times, with each bending angle being 135°.

[0049] In this embodiment, the fixing plates 101 and the side walls forming the fixing grooves 102 on both sides of the first enclosure 1 provide precise positioning and a reliable connection interface for the installation of the second enclosure 2, effectively ensuring connection stability.

[0050] The support rod 3 has four rods, and the two ends of the support rod 3 are provided with fixing threads 301. The four support rods 3 are installed in the first connecting hole 103 and the second connecting hole 201 in an alternating manner by bolts to support the hole template.

[0051] The sealing bolt 4 is installed in the first connecting hole 103 and the second connecting hole 201 where the support rod 3 is not installed. The sealing bolt 4 effectively seals any additional holes.

[0052] In this embodiment, a hole template is formed by using four sets of first enclosure plates 1 and second enclosure plates 2. The concave and convex pattern of the hole template increases the contact area with the concrete, which can improve the bonding effect with the concrete. At the same time, by setting and installing support rods 3, a stable internal support frame can be formed, which can effectively reduce the deformation of the hole template during pouring and ensure the dimensional accuracy of the reserved holes.

[0053] In this embodiment, by using perforated formwork instead of existing wooden formwork, and not removing it after pouring, it serves as part of the foundation. This improves the integrity of the pre-reserved holes and the foundation during subsequent secondary pouring, while also reducing the formwork removal work and avoiding the technical difficulties of removing traditional wooden formwork.

[0054] Specifically: a positioning plate 104 is provided on the outer wall of the first enclosure 1; a positioning through hole 105 is provided on the positioning plate 104.

[0055] In this embodiment, the positioning plate 104, in conjunction with the positioning through hole 105, enables precise installation and positioning, effectively ensuring the accuracy of the reserved hole position and meeting the precision requirements of track construction.

[0056] Specifically: a sealing gasket 302 is provided at the joint of the support rod 3.

[0057] In this embodiment, the sealing gasket 302 provided at the joint of the support rod 3 can further effectively prevent concrete slurry leakage.

[0058] Specifically, the outer surfaces of the first enclosure 1 and the second enclosure 2 are provided with raised and recessed patterns.

[0059] In this embodiment, the significant embossed pattern on the surface effectively increases the bond strength between the steel plate and the concrete.

[0060] The technical solutions provided in this application have the following beneficial effects:

[0061] This application uses four sets of first enclosure plates 1 and second enclosure plates 2 to form a hole template. The concave and convex pattern of the hole template increases the contact area with the concrete, which can improve the bonding effect with the concrete. At the same time, by setting and installing support rods 3, a stable internal support frame can be formed, which can effectively reduce the deformation of the hole template during pouring and ensure the dimensional accuracy of the reserved holes.

[0062] This application uses perforated formwork instead of existing wooden formwork, which is not removed after pouring and serves as part of the foundation. This improves the integrity of the pre-reserved holes and the foundation for subsequent secondary pouring, while also reducing the formwork removal work and avoiding the technical difficulties of removing traditional wooden formwork.

[0063] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0064] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A construction device for pre-drilling holes, characterized in that, include: The hole template, support rod (3), and sealing bolt (4) consist of four sets of first enclosure plates (1) and second enclosure plates (2); The first enclosure (1) is a bent steel plate. Fixing plates (101) are provided on both sides of the first enclosure (1). The fixing plates (101) and the side walls of the first enclosure (1) form a fixing groove (102). First connecting holes (103) are provided on the fixing plates (101) and the first enclosure (1). The second enclosure (2) is a bent steel plate, and second connecting holes (201) are provided on both sides of the second enclosure (2). The side wall of the second enclosure (2) is fixedly installed in the fixing groove (102) of the first enclosure (1), and the four sets of the first enclosure (1) and the second enclosure (2) after installation form a hole template. The support rod (3) is provided with four rods, and fixed threads (301) are provided at both ends of the support rod (3). The four support rods (3) are installed in the first connecting hole (103) and the second connecting hole (201) by bolts to support the hole template. The sealing bolt (4) is installed in the first connecting hole (103) and the second connecting hole (201) where the support rod (3) is not installed.

2. The construction device for pre-drilled holes according to claim 1, characterized in that: The first enclosure (1) is a steel plate that is bent five times, with each bending angle being 135°; The second enclosure (2) is a steel plate that is bent six times, with each bending angle being 135°.

3. The construction device for pre-drilled holes according to claim 2, characterized in that: A positioning plate (104) is provided on the outer wall of the first enclosure (1). The positioning plate (104) is provided with a positioning through hole (105).

4. The construction device for pre-drilled holes according to claim 3, characterized in that: A sealing gasket (302) is provided at the joint of the support rod (3).

5. The construction device for pre-drilled holes according to any one of claims 1-4, characterized in that: The outer wall surfaces of the first enclosure (1) and the second enclosure (2) are provided with embossed patterns.