Adjustable mold for concrete foundation construction

By using adjustable molds in concrete foundation construction, the problem of inaccurate positioning of structural bolts was solved, ensuring the stability and positional accuracy of the anchor bolts, and improving construction quality and efficiency.

CN224379440UActive Publication Date: 2026-06-19HEBEI INSTALLATION ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI INSTALLATION ENG
Filing Date
2025-06-09
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the positioning brackets for structural bolts are difficult to meet the diverse and personalized production needs under complex construction environments and various bolt specifications, resulting in inaccurate positioning and affecting the bearing capacity of the building foundation.

Method used

An adjustable mold for concrete foundation construction is provided, including a positioning frame, an adjustment frame, and a level. By fabricating the positioning frame on site and utilizing the adjustment frame and fixing nuts, the accurate positioning and stability of the anchor bolts during the concrete pouring process are ensured.

Benefits of technology

It achieves accurate positioning and stability of anchor bolts in complex construction environments, improves the construction quality and efficiency of concrete foundations, and reduces construction costs and safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of building construction equipment technology, and provides an adjustable mold for concrete foundation construction. It is used to position anchor bolts to be poured into the concrete foundation, ensuring accurate positioning of the anchor bolts after pouring. The mold includes: a reinforced concrete foundation with several layers; a positioning frame located within the reinforced concrete foundation, with several mounting holes through which anchor bolts pass, the positioning frame restricting horizontal movement of the anchor bolts; an adjusting frame detachably mounted on the positioning frame, with several adjusting legs for adjusting the levelness of the positioning frame; and a level detachably mounted on the positioning frame for checking the levelness of the positioning frame. This technical solution solves the technical problem in existing technologies where pre-designed supports cannot adapt to the on-site construction environment during actual bolt positioning and installation.
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Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of building construction equipment technology, and more specifically, to an adjustable mold for concrete foundation construction. Background Technology

[0002] In the construction of reinforced concrete foundations for large equipment, the positioning of structural bolts is crucial. Deviations in bolt placement can affect the overall load-bearing capacity of the foundation. Existing Chinese patent application number 202010315041.5 describes a process requiring specific support designs for different bolt arrangements to achieve accurate vertical bolt positioning, demanding significant effort upfront. However, due to the complexity of the construction environment and the diversity of bolt specifications, the pre-designed positioning supports often have limitations in compatibility with the bolts, making it difficult to meet diverse and customized production needs. Therefore, there is an urgent need for a simple, easy-to-operate, adjustable bolt mold device. Utility Model Content

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide an adjustable mold for concrete foundation construction, which solves the technical problem in the related art that the pre-designed support cannot adapt to the on-site construction environment when actually positioning and installing bolts.

[0004] According to one aspect, at least one embodiment of this disclosure provides an adjustable mold for concrete foundation construction, used to position anchor bolts to be poured into the concrete foundation to ensure the accuracy of the anchor bolt position after pouring, including:

[0005] A reinforced concrete foundation, consisting of several layers;

[0006] A positioning frame is located within the reinforced concrete foundation. The positioning frame has several mounting holes through which several anchor bolts pass. The positioning frame is used to restrict the horizontal movement of the anchor bolts.

[0007] An adjustment frame is detachably mounted on the positioning frame. The adjustment frame has several adjustment legs, which are used to adjust the levelness of the positioning frame.

[0008] A spirit level is detachably mounted on the positioning frame and is used to detect the levelness of the positioning frame.

[0009] For example, in a plastic welding wire spool provided in at least one embodiment of this disclosure, the anchor bolt is divided into a vertical section and a horizontal section in sequence; one end of the vertical section is higher than the steel reinforcement foundation so that one end of the vertical section is exposed outside the building foundation after the building foundation is poured, and the other end of the vertical section passes through the mounting hole and extends into the steel reinforcement foundation, and the horizontal section is also located in the steel reinforcement foundation and abuts against the steel reinforcement foundation.

[0010] For example, in at least one embodiment of this disclosure, a plastic welding wire spool further includes:

[0011] A fixing nut (600) is detachably mounted on the vertical section (110) and abuts against the reinforcing steel foundation (200). A clamping space (610) is formed between the fixing nut (600) and the horizontal section (120). The clamping space (610) is used to clamp the reinforcing steel foundation (200) of different layers to ensure the anchor bolts (100) are fixed and stable.

[0012] For example, in at least one embodiment of this disclosure, a plastic welding wire spool further includes:

[0013] A number of fixed reinforcing bars are provided, with both ends respectively set on the anchor bolt and the foundation of the reinforcing bars. The fixed reinforcing bars are welded to the foundation of the reinforcing bars and the anchor bolt to restrict the horizontal and vertical movement of the anchor bolt.

[0014] For example, in a plastic welding wire spool provided in at least one embodiment of this disclosure, a plurality of the adjustable legs are arranged circumferentially at equal intervals on the positioning frame.

[0015] For example, in a plastic welding wire spool provided in at least one embodiment of this disclosure, the horizontal section, the reinforcing steel base, and the positioning frame are fixedly connected so that the positioning frame will no longer tilt or change angle.

[0016] The beneficial effects of the embodiments disclosed herein are as follows:

[0017] In this disclosure, the positioning frame is made from readily available materials. Holes are drilled at the actual locations to allow anchor bolts to pass through. Since it is fabricated on-site, the drilling positions can be easily confirmed and optimized, ensuring the size and position of the bolt holes on the final positioning frame. Several anchor bolts pass through the positioning frame, and the frame's structural stability restricts their horizontal and vertical movement, ensuring the anchor bolts remain in accurate positions during concrete pouring. An adjusting frame is detachably mounted on the positioning frame, and its adjusting legs can change the tilt angle of the positioning frame by adjusting their length or angle. This allows for fine-tuning of the positioning frame during construction, adapting to different construction environments and uneven foundation surfaces, ensuring the verticality and position of the anchor bolts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an adjustable mold for concrete foundation construction according to one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure of the anchor bolt;

[0021] Figure 3 for Figure 1 A schematic diagram of the positioning frame.

[0022] In the diagram: 100, anchor bolt; 200, steel reinforcement foundation; 300, positioning frame; 310, mounting hole; 400, adjusting bracket; 410, adjusting support leg; 500, spirit level; 110, vertical section; 120, horizontal section; 600, fixing nut; 610, clamping space; 700, fixing steel reinforcement. Detailed Implementation

[0023] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0024] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0025] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0026] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-3As shown, this invention discloses an adjustable mold for concrete foundation construction in one embodiment. In the construction of large reinforced concrete equipment foundations, the positioning of anchor bolts 100 directly affects the quality of the foundation. While existing technologies offer methods for bolt positioning, they have limitations when dealing with complex construction environments and diverse bolt specifications. The adjustable mold of this invention, through a positioning frame 300 and an adjustment bracket 400, provides a simple and convenient solution for positioning anchor bolts 100.

[0030] The positioning frame 300 is the basic support structure of the entire mold assembly, providing a positioning reference for the anchor bolts 100. The positioning frame 300 itself can be welded from on-site profiles to form a rectangular or square frame structure. The dimensions of the positioning frame 300 are determined based on the actual bolt arrangement. Since the positioning frame 300 is fabricated on-site, it is easier to confirm and optimize the drilling positions using drilling equipment, ensuring the size and position of the mounting holes 310 on the final product of the positioning frame 300. Several anchor bolts 100 pass through the positioning frame 300. Utilizing the structural stability of the frame itself, the horizontal movement of the anchor bolts 100 is restricted, thereby ensuring that the anchor bolts 100 maintain an accurate horizontal position during concrete pouring.

[0031] The adjusting bracket 400 is detachably mounted on the positioning frame 300, and its adjusting legs 410 can change the tilt angle of the positioning frame 300 by adjusting their length or angle. This allows the positioning frame 300 to be finely adjusted during construction according to the actual situation to adapt to different construction environments and uneven foundation surfaces, ensuring the verticality and position of the anchor bolts 100.

[0032] To ensure the levelness of the positioning frame 300 during adjustment, a spirit level 500 needs to be installed on the positioning frame 300. When adjusting the adjustment frame 400, the levelness of the adjustment frame 400 is confirmed by referring to the spirit level 500. The use of the spirit level 500 allows construction workers to quantify the levelness, preventing the anchor bolts 100 from tilting due to the positioning frame 300 being unlevel, thus ensuring the position of the anchor bolts 100 and improving the construction quality of the concrete foundation. The spirit level 500 has a simple structure and intuitive readings, allowing construction workers to quickly determine the levelness of the positioning frame 300 without the need for complex instruments, facilitating timely adjustments, improving construction efficiency, and reducing measurement and adjustment time during construction.

[0033] In some examples, the anchor bolt 100 is divided into a vertical section 110 and a horizontal section 120. One end of the vertical section 110 is higher than the reinforced concrete foundation 200. After the concrete is poured, a section of the vertical section 110 will be exposed outside the reinforced concrete foundation 200 to secure other equipment. The horizontal sections 120 are all located within the concrete to ensure that the exposed vertical section 110 can stably provide an installation position for the equipment.

[0034] The reinforced concrete foundation 200 has multiple layers. When the positioning frame 300 is leveled, the horizontal position of the anchor bolt 100 is restricted within the mounting hole 310. However, the height adjustment needs to be done by fixing nut 600. By adjusting the fixing nut 600, the clamping space 610 formed between the fixing nut 600 and the horizontal section 120 of the anchor bolt 100 will clamp the reinforced concrete foundation 200, thereby fixing the vertical position of the anchor bolt 100 and preventing the anchor bolt 100 from shifting during the concrete pouring process.

[0035] After the anchor bolt 100 is initially fixed at its height using the fixing nut 600, the two ends of the fixing reinforcing bar 700 are welded to the anchor bolt 100 and the reinforcing bar foundation 200, respectively. The welded fixing reinforcing bar 700 completely fixes the anchor bolt 100, ensuring its position remains unaffected even by concrete impact during pouring. The fixing reinforcing bars 700 are arranged obliquely on the sidewall of the positioning frame 300, utilizing the principle of triangle stability. Multiple triangular structures are formed between the oblique fixing reinforcing bars 700, the sidewall of the positioning frame 300, and the ground or foundation support surface. When external forces attempt to tilt the positioning frame 300, these triangular structures disperse and transmit the force. Through the interaction between the fixing reinforcing bars 700 and the ground or support surface, the tilting tendency of the positioning frame 300 is effectively resisted, thus ensuring the stability of the positioning frame 300 during construction. The obliquely arranged fixing reinforcing bars 700 significantly improve the positioning frame 300's resistance to tilting. During concrete pouring, the fixing steel bars 700, through their unique inclined structure, effectively disperse both the lateral pressure from the concrete itself and the vibration impact generated during compaction. This ensures the stability of the positioning frame 300, preventing tilting and guaranteeing the accurate positioning of the anchor bolts 100, thus improving the construction quality of the concrete foundation. The stable structure formed by multiple inclined fixing steel bars 700 and the positioning frame 300 not only enhances the stability of the positioning frame 300 against tilting but also improves the overall stability of the entire formwork system. Even in complex construction environments, such as those with adverse factors like wind or minor foundation settlement, the positioning frame 300 remains relatively stable, reducing safety hazards during construction.

[0036] In some examples, the adjusting legs 410 are arranged at equal intervals in a circle on the positioning frame 300, based on the principle of force balance and uniform distribution. When the positioning frame 300 needs to be adjusted in tilt, the equally spaced adjusting legs 410 can apply uniform and independently controllable forces in different directions. Because the legs are evenly spaced, regardless of which direction the positioning frame 300 tilts, it can be adjusted by the corresponding adjusting legs 410, making the adjustment force on the positioning frame 300 more balanced. Compared with other irregular arrangements, the equally spaced adjusting legs 410 can achieve adjustment of the tilt angle of the positioning frame 300. Construction personnel can more precisely control the tilt of the positioning frame 300 in various directions, thereby meeting the requirements for mold levelness and anchor bolt verticality in different construction scenarios.

[0037] In some examples, after the positioning frame 300 is balanced, the reinforcing steel bars are welded and fixed to it, primarily based on the principle that their synergistic effect enhances structural stability. The reinforcing steel bars, with their high strength and stiffness, provide additional support and constraint to the positioning frame 300 after being fixed, limiting its displacement in both horizontal and vertical directions. This prevents the positioning frame 300 from tilting or changing angle due to external forces, ensuring the stability of the entire mold system during subsequent construction. By fixing the reinforcing steel bars to the positioning frame 300, the stability of the entire mold structure is significantly improved, effectively reducing the risk of tilting or changing angle of the positioning frame 300 during concrete pouring and subsequent construction. This ensures that the anchor bolts 100 remain in the accurate position, thereby guaranteeing the construction accuracy and quality of the concrete foundation. Because the stability of the positioning frame 300 is guaranteed, frequent readjustment of the positioning frame 300 is unnecessary during construction, reducing construction steps and time, and improving construction efficiency. Simultaneously, it reduces the risk of rework due to displacement of the positioning frame 300, saving construction costs.

[0038] In some examples, the positioning frame 300 is constructed by welding multiple profiles together, leveraging the versatility and plasticity of these profiles. Profiles, such as angle steel, channel steel, and I-beams, have standard dimensions and shapes, facilitating processing and connection. By welding on-site according to actual needs, the characteristics of these profiles can be fully utilized, allowing for flexible adjustment of the shape and size of the positioning frame 300 to adapt to the construction requirements of different concrete foundations and meet the complex and varied working conditions on site. The shape of the positioning frame 300 can be quickly customized based on the actual needs of the foundation shape, size, and the layout of the pre-embedded anchor bolts 100. Whether it's a regular square, rectangular, or irregularly shaped foundation, a suitable positioning frame 300 can be produced by rationally selecting profiles and welding methods, ensuring accurate positioning of the anchor bolts 100. This avoids the high cost of customizing specific-shaped positioning frames 300 for different projects. Using universal profiles facilitates material procurement and allows for reuse. Recombining and welding profiles according to requirements in different projects reduces mold manufacturing costs and improves material utilization.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An adjustable mold for concrete foundation construction, used to position anchor bolts (100) to be poured into the concrete foundation to ensure accurate positioning of the anchor bolts (100) after pouring, characterized in that, include: The reinforced concrete foundation (200) has several layers; A positioning frame (300) is located inside the steel foundation (200). The positioning frame (300) has several mounting holes (310) and several anchor bolts (100) pass through the mounting holes (310). The positioning frame (300) is used to restrict the horizontal movement of the anchor bolts (100). An adjustment frame (400) is detachably mounted on the positioning frame (300). The adjustment frame (400) has a plurality of adjustment legs (410) for adjusting the levelness of the positioning frame (300). A level (500) is detachably mounted on the positioning frame (300) and is used to detect the levelness of the positioning frame (300).

2. The adjustable mold for concrete foundation construction according to claim 1, characterized in that, The anchor bolt (100) is divided into a vertical section (110) and a horizontal section (120) in sequence; one end of the vertical section (110) is higher than the steel reinforcement foundation (200) so that one end of the vertical section (110) is exposed outside the building foundation after the building foundation is poured; the other end of the vertical section (110) passes through the mounting hole (310) and extends into the steel reinforcement foundation (200); the horizontal section (120) is also located in the steel reinforcement foundation (200) and abuts against the steel reinforcement foundation (200).

3. The adjustable mold for concrete foundation construction according to claim 2, characterized in that, Also includes: A fixing nut (600) is detachably installed on the vertical section (110) and abuts against the steel reinforcement foundation (200). A clamping space (610) is formed between the fixing nut (600) and the horizontal section (120). The clamping space (610) is used to clamp the steel reinforcement foundation (200) of different layers so that the anchor bolt (100) is fixed and stable.

4. The adjustable mold for concrete foundation construction according to claim 3, characterized in that, Also includes: The fixed reinforcing bars (700) are of several kinds, with their two ends respectively set on the anchor bolt (100) and the reinforcing bar foundation (200). The fixed reinforcing bars (700) and the reinforcing bar foundation (200) are welded to the anchor bolt (100) to restrict the horizontal and vertical movement of the anchor bolt (100).

5. An adjustable mold for concrete foundation construction according to claim 1, characterized in that, Several of the adjustable legs (410) are arranged at equal intervals around the circumference on the positioning frame (300).

6. An adjustable mold for concrete foundation construction according to claim 2, characterized in that, The horizontal section (120), the steel reinforcement foundation (200), and the positioning frame (300) are fixedly connected to each other so that the positioning frame (300) will no longer tilt or change angle.