Foundation bolt pre-embedding positioning device
By using structures such as steel bar brackets and formwork in the anchor bolt pre-embedded positioning device, the problem of insufficient positioning accuracy of anchor bolts is solved, construction efficiency is improved and costs is reduced, and it is suitable for equipment foundation construction in large industrial buildings.
Patent Information
- Application Number
- CN202422545154.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-22
AI Technical Summary
In the prior art, the positioning accuracy of anchor bolts is difficult to ensure, resulting in low construction efficiency and increased cost, and affecting the quality of the equipment foundation.
The anchor bolt pre-embedded positioning device is adopted, including a steel bar bracket, formwork and rib rod. By pre-opening of set positioning holes on the formwork and fixing the anchor bolts with nuts, combining the theodolite and the leveling ruler to ensure positioning accuracy. The template and the steel bar are tied and fixed by steel wire, and the rib rod supports the formwork to prevent deformation.
The simultaneous positioning of multiple anchor bolts is achieved, which improves construction efficiency and positioning accuracy, reduces construction costs, and is suitable for large-scale construction.
Smart Images
Figure CN223269653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of anchor bolt construction technology, in particular to a pre-embedded positioning device for anchor bolts. Background Art
[0002] With the continued construction of various large-scale industrial buildings and the ever-increasing scale of various metallurgical industrial facilities, the number of pre-buried anchor bolts required during installation has increased. The pre-buried bolts in equipment foundations are large in size, numerous in number, and require high installation precision, which necessitates accurate positioning of the equipment foundation anchor bolts.
[0003] Anchor bolts are typically embedded in civil engineering projects by securing them to rebar or formwork before pouring concrete. Anchor bolt positioning typically uses surveying instruments to measure point locations, including plane coordinates and elevations. These measurements are easily affected by the external environment and the surveyor's skill level, leading to positioning errors. Once the concrete solidifies, the embedded anchor bolts often fall short of required accuracy, requiring significant manpower, material resources, and time to rectify. This can also negatively impact the quality of the foundation itself, hindering subsequent equipment installation. Utility Model Content
[0004] In order to solve the above problems in the prior art, the utility model provides a pre-embedded positioning device for anchor bolts.
[0005] The utility model provides a pre-embedded anchor bolt positioning device adopts the following technical solutions:
[0006] A pre-embedded positioning device for anchor bolts comprises a steel bar bracket fixed on the foundation steel bar, a template with positioning holes is fixedly installed on the steel bar bracket, the anchor bolts are passed through the positioning holes and fixed by nuts, and fixed steel bars are welded between the anchor bolts and the foundation steel bar.
[0007] By adopting the above technical solution and using the pre-embedded positioning device for anchor bolts, multiple anchor bolts can be positioned at the same time, ensuring consistency, making positioning measurement simple and accurate, improving construction efficiency, and being able to be used in a turnover manner; by determining the anchor bolt positions on the template in advance, drilling holes, and fixing the anchor bolts, it is convenient to construct anchor bolt groups on a large scale, shortening construction period, and effectively reducing manufacturing costs, and is suitable for the positioning construction of equipment foundation anchor bolt groups.
[0008] Optionally, ribs are installed at the bottom of the formwork, and the ribs are supported on steel bar supports.
[0009] By adopting the above technical solution, the ribs help solve the problem of bending of the formwork under stress and improve the overall strength of the structure.
[0010] Optionally, the ribs are fixed to the steel support brackets by tying with steel wires.
[0011] By adopting the above technical solution, the steel wire binding facilitates the fixation of the rib rods.
[0012] Optionally, the ribs are fixed to the formwork by nails.
[0013] By adopting the above technical solution, nails are used to facilitate the fixation of the template and the ribs.
[0014] Optionally, an axis is provided on the top surface of the template.
[0015] By adopting the above technical solution, the axis is used to facilitate the precise positioning of each positioning hole and facilitate measurement.
[0016] In summary, the present invention has at least one of the following beneficial technical effects:
[0017] 1. It enables multiple anchor bolts to be positioned simultaneously, ensuring consistency, making positioning measurement simple and accurate, improving construction efficiency, and enabling turnover;
[0018] 2. By determining the position of the anchor bolts on the template in advance, drilling holes, and fixing the anchor bolts, it is convenient to construct the anchor bolt group on a large scale, shorten the construction period, and effectively reduce the manufacturing cost. It is suitable for the positioning construction of the anchor bolt group of the equipment foundation. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the anchor bolt pre-embedded positioning device according to an embodiment of the utility model.
[0020] Explanation of the accompanying reference numerals: 1. Anchor bolt; 2. Steel bar support; 3. Formwork; 30. Axis; 4. Nut; 5. Rib; 6. Nail. DETAILED DESCRIPTION
[0021] The following is combined with Figure 1 The utility model is described in further detail.
[0022] The embodiment of the utility model discloses a pre-embedded positioning device for anchor bolts. Figure 1 The anchor bolt embedded positioning device can install four anchor bolts 1 at the same time. The positioning device includes a steel bar bracket 2. The steel bar bracket 2 is welded by multiple steel bars. The steel bar bracket 2 is spot-welded to the foundation steel bar. A spirit level is used to ensure that the top surface of the steel bar bracket 2 is level.
[0023] Reference Figure 1A template 3 is set on the steel support 2, and the edge of the template 3 is clamped on the steel support 2. The template 3 is used to control the position and elevation of the anchor bolt 1. The top surface of the template 3 uses a white nylon rope to pop out the axis 30. According to the axis 30, several positioning holes are opened in advance whose positions are consistent with the positions of the embedded anchor bolts 1. The anchor bolts 1 are inserted into the positioning holes, and a theodolite is used to ensure the verticality of the anchor bolts 1. The top of the anchor bolt 1 is tightened with a nut 4 to ensure the reserved height.
[0024] Reference Figure 1 In order to prevent the formwork 3 from being deformed under load, a plurality of ribs 5 are provided on the bottom surface of the formwork 3. The ribs 5 in this embodiment are wooden slats. The ribs 5 are fixed to the formwork 3 by nails 6 to prevent the formwork 3 from shifting. The nails 6 in this embodiment are cement nails. The ribs 5 are set on the steel support 2, and the ribs 5 can be tied and fixed to the steel support 2 with steel wire.
[0025] The principle of the anchor bolt pre-embedded positioning device of the present invention is as follows: After the construction workers have tied the steel bars in the foundation, they weld a circle of steel bar brackets 2 with the steel bars. The steel bar brackets 2 are spot-welded to the foundation steel bars, and a spirit level is used to ensure that the top of the steel bar brackets 2 is level. Ribs 5 are placed on the top surface of the steel bar brackets 2 and are tied and secured to the steel bar brackets 2 with steel wire. A template 3 is placed on top of the ribs 5 and is clamped between the vertical steel bars at the four corners of the steel bar brackets 2. The top of the template 3 is connected to the ribs 5 below with nails 6 to prevent the template 3 from shifting.
[0026] Axis 30 is highlighted on formwork 3 using white nylon thread. Before placing formwork 3, several locating holes are drilled in alignment with the embedded anchor bolts 1. Anchor bolts 1 are inserted into the locating holes, and verticality is ensured using a theodolite. Nuts 4 are tightened on top of anchor bolts 1 to maintain the reserved height. Once anchor bolts 1 are secured, short reinforcement bars are welded to the middle and lower portions of anchor bolts 1 to connect to the foundation reinforcement to ensure verticality. After these connections are complete, formwork 3 and reinforcement support 2 are removed. Finally, the foundation concrete is poured.
[0027] The use of the pre-embedded anchor bolt positioning device enables multiple anchor bolts 1 to be positioned simultaneously, ensuring consistency, making positioning measurement simple and accurate, improving construction efficiency, and enabling turnover. By determining the position of the anchor bolts 1 on the template 3 in advance, drilling holes, and fixing the anchor bolts 1, it is convenient to construct the anchor bolt group on a large scale, shortening the construction period, and effectively reducing the manufacturing cost. It is suitable for the positioning construction of the anchor bolt group of the equipment foundation.
[0028] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A pre-embedded positioning device for anchor bolts, characterized by: It comprises a steel bar support (2) fixed on the foundation steel bar, a template (3) with a positioning hole is fixedly installed on the steel bar support (2), an anchor bolt (1) is passed through the positioning hole and fixed by a nut (4), and a fixed steel bar is welded between the anchor bolt (1) and the foundation steel bar.
2. The anchor bolt pre-embedded positioning device according to claim 1, characterized in that: A rib bar (5) is installed at the bottom of the template (3), and the rib bar (5) is supported on the steel bar bracket (2).
3. The anchor bolt pre-embedded positioning device according to claim 2, characterized in that: The rib rod (5) is tied and fixed to the steel bar support (2) through steel wire.
4. The anchor bolt pre-embedded positioning device according to claim 2, characterized in that: The ribs (5) are fixed to the template (3) via nails (6).
5. The anchor bolt pre-embedded positioning device according to claim 1, characterized in that: The top surface of the template (3) is provided with an axis (30).