Construction method for preventing deformation and displacement of embedded electric box

Abstract

The invention relates to the field of building electrical construction, and particularly discloses a construction method for preventing deformation and displacement of an embedded electric box. According to the method, by arranging a static supporting structure and an internal protection assembly, stable positioning and anti-deformation protection of the electric box in the concrete pouring process are achieved. The protection assembly comprises a cross-shaped supporting screw rod structure, an elastic supporting sheet mechanism or an intelligent response system integrating a stress sensor, an automatic supporting device and an alarm module. When the stress of the electric box exceeds a preset threshold value, the system can automatically unfold the supporting structure and trigger acousto-optic or remote alarm, so that the construction safety and the forming quality of the electric box are improved. The method is simple in structure and high in adaptability, and can be widely applied to concrete construction of various embedded electrical devices.

Description

Technical Field

[0001] The present invention relates to a pre-embedded construction technology in a shear wall structure, and in particular to a construction method for preventing a pre-embedded electrical box from being deformed and shifted during concrete pouring. Background Art

[0002] High-rise buildings with shear walls are becoming a mainstream feature of the construction industry. These buildings contain over a hundred distribution boxes of varying sizes. The key challenge is to simply and effectively embed these boxes within the shear walls, ensuring they resist deformation and displacement. The traditional installation method involves creating a wooden frame according to the geometric dimensions of the distribution box during construction. After the main structure is complete, the frame is removed, the box is installed, and the opening is repaired. This installation process presents numerous drawbacks, such as the risk of the box shifting or bulging due to formwork deformation, concrete pouring disturbances, and conduit pulls. Furthermore, the wooden frame inevitably incurs additional costs. Due to its poor stability and impact resistance, it is prone to deformation during concrete pouring, causing the reserved holes to deform and requiring rework, which compromises both visual quality and subsequent functionality. This can even lead to rework and repairs, resulting in low construction efficiency.

[0003] Therefore, the known pre-buried electric box construction method has the above-mentioned inconveniences and problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a safe and reliable construction method for preventing deformation and displacement of a pre-buried electrical box.

[0005] To achieve the above object, the general technical concept of the present invention is: First, a basic stable support system is constructed through physical structure positioning and mechanical bracing measures.

[0006] On this basis, stress perception and automatic adjustment structure are further introduced to realize dynamic response function based on stress state.

[0007] Furthermore, according to different construction requirements and site conditions, a mechanical self-responsive adjustment solution can be constructed without the need for electronic components to form fully covered adaptive protection.

[0008] Specifically, the protection system provided by the present invention includes the following components: 1. Static positioning structure: such as brackets, electrical boxes and bracket connecting components, to ensure the initial stability of the electrical box before pouring; 2. Internal support locking structure: such as the cross support rod inserted into the sleeve structure, which resists the deformation trend caused by the lateral pressure of the concrete and belongs to mechanical rigid protection; 3. Stress perception and feedback adjustment module: Integrates sensors and data processing units to identify whether the stress state of the electrical box is abnormal; 4. Automatic adjustment response mechanism: such as electric push rod, air bag, spring leaf or magnetic drive element, when the detected force is over limit, trigger action, realize the inside or edge of the electric box is supported.

[0009] The above components can be flexibly configured according to actual engineering needs, can be used alone to form a basic support, or can be integrated into a high-level protection system, which can meet the standard construction precision requirements and adapt to the high stability requirements of special parts (such as multi-pipe crossing, super high-rise, seismic wall).

[0010] The construction method of the application has the characteristics of strong scalability, rich application scenarios and strong structure adaptability, and has good industrialization promotion prospects.

[0011] For example, in the method 1 described above, the bracket is preferably an angle iron with a specification of ≥30*30mm, and the electric box is a strong electric box or a weak electric box.

[0012] For example, in the method 2 described above, the cross-shaped screw rod is preferably four screw rods welded into a cross shape.

[0013] After adopting the above technical solution, the construction method for preventing deformation and displacement of the embedded electric box has the following advantages: Through the hierarchical protection idea, the whole process deformation control from static fixation to dynamic response is realized, the stability of the embedded electric box structure is significantly improved, and deformation and displacement are avoided; The rigid structure and the self-adaptive structure can be flexibly combined according to the construction environment, effectively dealing with common engineering disturbances such as formwork error, vibration disturbance and pipe pulling; The intelligent feedback type device can timely identify and intervene in the overload state, reduce the risk of rework and damage, and is suitable for fine and intelligent building scenes; The overall device structure is simple, the components can be modularly installed and reused, the construction cost is reduced, and the engineering efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an electric box bracket and supporting structure schematic diagram of the embodiment 1 of the application; Figure 2 It is a stress sensor, data module, electric push rod and air bag supporting device structure schematic diagram in the embodiment 2 of the application; Figure 3 It is a control system schematic diagram of the embodiment 2 of the application; Figure 4 It is a mechanical automatic adjustment structure schematic diagram in the embodiment 3 of the application.

[0015] FIG. No. Explanation 1 cross-shaped screw rod; 2 sleeve; 3 nut; 4 Electric box body; 5. Floor structure; 6 angle iron brackets; 7. Threading tube; 8 stress sensors; 9 data processing module; 10. Automatic tightening device; 101 electric linear actuator; 102 airbag tensioning device; 11. Elastic support mechanism; 12 reed triggers; 13 alarm output module; 131 sound and light alarm unit; 132 wireless transmission unit. DETAILED DESCRIPTION Example 1

[0016] Please refer to Figure 1 .like Figure 1 As shown, the production steps are as follows: Step 1: Use angle iron bracket 6 to make a vertical structure and fix it to the floor slab 5 with expansion bolts; the upper part of the bracket 6 is fastened to the electrical box 4 with bolts to complete the preliminary positioning of the electrical box.

[0017] Step 2: After bracket 6 and electrical box 4 are secured, a cross-shaped screw rod 1 is installed inside the electrical box. This screw rod is welded from four conventional rods. Its four ends are inserted into sleeves 2 welded to the four walls of the electrical box 4. The exterior of the sleeves 2 is welded to bracket 6 or the inner wall of the electrical box. Tightening nuts 3 push the four ends of the screw rod 1 outward, forming a rigid internal support structure to prevent bulging or displacement caused by lateral pressure from the concrete. Example 2

[0018] Please refer to Figure 2 and Figure 3 This embodiment is based on the structure of embodiment 1, and an intelligent stress monitoring and feedback adjustment device is integrated into the electrical box 4 to form an active anti-deformation system.

[0019] a plurality of stress sensors 8 are provided inside the four walls of the electrical box 4 for real-time detection of lateral forces generated during concrete pouring; b. The sensor 8 is connected to a micro data processing module 9, which has a force threshold judgment and feedback logic; c. When the stress exceeds a preset threshold, the control unit drives the electric push rod 101 or the airbag tensioning device 102 to automatically deploy, providing reverse support to the inner wall of the electrical box 4; d. The system may also be linked to an alarm output module 10 such as an audible and visual alarm unit 131 and / or a wireless transmitter unit 132 for on-site alarm or remote warning. Example 3

[0020] Please refer to Figure 4 . Figure 4 This is a variation of Embodiment 1 or 2 of the present invention. Specifically, based on the two aforementioned embodiments, the cross-screw structure is replaced with an elastic support plate 11, combined with a reed trigger 12, to achieve a passive responsive anti-deformation structure. The feedback response system can also employ a broadly defined automatic adjustment structure, including but not limited to mechanical overload response units, elastic support plates, reed triggers, and other intelligent mechanisms that do not require electronic modules.

[0021] For example, an elastic support 11 assembly is installed on the inner wall of the electrical box 4. When the stress generated by pouring concrete exceeds the mechanical preload, the support automatically pops out and tightens. Alternatively, a pressure-sensitive magnetic reed 12 rotates and releases under pressure, achieving self-locking and damping. This structure allows for adaptive adjustment without the use of electronic components, making it suitable for electrical box construction in high-humidity and high-dust environments.

Claims

1. A construction method for preventing deformation and displacement of embedded electrical boxes, characterized in that: The steps include: An initial support structure is provided between the electrical box (4) and its installation location, and a protective component for resisting lateral pressure during concrete pouring is provided inside the electrical box (4), the protective component comprising a static positioning structure, a tightening structure and / or an automatic adjustment structure, wherein the automatic adjustment structure can automatically deploy support and / or trigger an alarm response when the stress state of the electrical box changes, thereby achieving stable positioning of the electrical box and preventing deformation or displacement.

2. The construction method for preventing deformation and displacement of the embedded electrical box according to claim 1 is characterized in that: The static positioning structure comprises an angle iron bracket (6) mounted on a floor slab (5), and the electrical box (4) is connected to the angle iron bracket (6) by bolts; the tightening structure is a cross-shaped screw (1), the four ends of which are respectively inserted into sleeves (2) welded to the inner wall of the electrical box (4), and the cross-shaped screw (1) is tightened inside the electrical box (4) by tightening a nut (3).

3. The construction method for preventing deformation and displacement of the embedded electrical box according to claim 1 is characterized in that: The protection component includes a stress sensing and feedback adjustment module, which includes a plurality of stress sensors (8) installed on the inner wall of the electrical box (4), a connected micro data processing module (9), and an automatic tightening device (10); when the stress sensor (8) detects that the concrete lateral pressure exceeds a preset threshold, the data processing module (9) outputs a control signal to drive the electric push rod (101) or the airbag tightening device (102) to expand and tighten the support structure.

4. The construction method for preventing deformation and displacement of a pre-buried electrical box according to claim 1 is characterized in that: The automatic adjustment structure comprises an elastic support piece (11) and a magnetic reed trigger (12) installed inside the electrical box (4); when the preset response force is reached under the action of concrete pouring stress, the elastic support piece (11) pops out and locks the support; the magnetic reed trigger (12) can trigger the alarm output module (13), start the sound and light alarm unit (131) and / or the wireless transmission unit (132) to send a remote signal.

5. The construction method for preventing deformation and displacement of the embedded electrical box according to claim 3 is characterized in that: The stress sensor (8) is a micro-resistance strain gauge or a MEMS piezoresistive sensor, and is connected to the external control system of the electric box (4) or a handheld receiving terminal via a signal line.

6. The construction method for preventing deformation and displacement of a pre-buried electrical box according to claim 2 is characterized in that: The cross-shaped screw (1) is composed of four screws welded vertically, the insertion length of which is greater than the depth of the sleeve (2), and a nut (3) is provided on the outside of each end for locking the extended section.

7. The construction method for preventing deformation and displacement of a pre-buried electrical box according to claim 1 is characterized in that: The angle iron bracket (6) is preferably an L-shaped hot-rolled angle steel with a cross-section of 30×30 mm or more, and its bottom is fixed to the concrete floor (5) by expansion bolts.

8. The construction method for preventing deformation and displacement of a pre-buried electrical box according to claim 4 is characterized in that: The magnetic reed trigger (12) comprises a reed switch encapsulated in a glass housing and an externally mounted magnet. When the elastic support piece (11) is pressed or ejected, the magnetic field causes the reed to conduct.

9. The construction method for preventing deformation and displacement of a pre-buried electrical box according to claim 1, characterized in that: The alarm output module (13) comprises at least one sound and light alarm unit (131) and / or a wireless transmission unit (132), which is installed on the top or wall side of the electrical box (4).

10. The construction method for preventing deformation and displacement of a pre-buried electrical box according to any one of claims 1 to 9, characterized in that: The protection component includes a static positioning structure and a mechanical rigid support structure, or further includes a stress sensing module and an automatic adjustment structure to adjust the support state of the protection component according to different concrete pouring load conditions.

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