Structure for improving field mounting and positioning precision of prefabricated wall panel

By setting pre-reserved grooves on prefabricated wall panels and equipping them with auxiliary equipment, the problem of accurate positioning during on-site installation of prefabricated wall panels is solved, achieving high positioning accuracy and installation efficiency, which is suitable for prefabricated building construction.

CN224200289UActive Publication Date: 2026-05-05ANHUI PROVINCIAL ARCHITECTURAL DESIGN & RSCH INST CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI PROVINCIAL ARCHITECTURAL DESIGN & RSCH INST CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Precast wall panels are difficult to position accurately on site, resulting in low installation efficiency and large errors. Traditional methods rely on manual measurement and marking of positioning lines, and the demolding slope and rough surface around the precast wall panels cause deviations between the actual dimensions and the design dimensions.

Method used

A pre-reserved groove is set at the edge or corner of the precast wall panel. The outer boundary line of the groove is on the same straight line as the positioning point of the precast wall panel in the vertical direction. Auxiliary installation equipment such as a level or laser emitter is provided. The outer boundary line of the groove is used as the positioning control line to realize the horizontal and vertical calibration of the wall panel.

Benefits of technology

By reducing manual measurement steps, the positioning accuracy and installation efficiency of prefabricated wall panels are improved. The groove structure is simple and easy to process, making it suitable for large-scale application.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224200289U_ABST
    Figure CN224200289U_ABST
Patent Text Reader

Abstract

The utility model provides a structure for improving on-site installation positioning accuracy of a prefabricated wall panel, which comprises the prefabricated wall panel, a reserved groove is arranged at the edge or the corner of the prefabricated wall panel, and the groove outer boundary line of the reserved groove and the prefabricated wall panel positioning point of an external floor are on the same straight line in the vertical direction. The outer boundary line of the groove coincides with the wallboard positioning control line. The reserved groove is a rectangular groove or an L-shaped groove, the inner angle of the reserved groove is 90 degrees, and auxiliary installation equipment is placed in the reserved groove and is a gradienter or a laser transmitter. During construction, installation equipment can be directly embedded into the reserved groove, and horizontal and vertical calibration and plane and vertical positioning of the wallboard are achieved. And the mounting efficiency can be improved while the positioning precision of the prefabricated wallboard is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a structure for improving the positioning accuracy of prefabricated wall panels during on-site installation. Background Technology

[0002] In prefabricated buildings, the installation accuracy of precast wall panels directly affects construction quality and efficiency. Traditional installation methods typically rely on manual measurement and marking of positioning lines. Furthermore, during precast wall panel production, to facilitate demolding and ensure a tight connection between the precast wall panel and the surrounding cast-in-place sections, demolding slopes and rough surfaces are often applied around the precast wall panels. This results in deviations between the actual and design dimensions of the precast wall panels. During on-site installation, workers cannot find accurate positioning reference points on the precast wall panels, leading to low on-site installation efficiency and large errors.

[0003] Therefore, there is an urgent need for a structure that can improve the positioning accuracy of precast wall panels during on-site installation, thereby increasing both the positioning accuracy and installation efficiency. Utility Model Content

[0004] To address the problems in the existing technology, this utility model proposes a structure for improving the positioning accuracy of precast wall panels during on-site installation.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A structure for improving the on-site installation positioning accuracy of precast wall panels includes precast wall panels, wherein the edges or corners of the precast wall panels are provided with reserved grooves, and the outer boundary line of the reserved grooves is on a straight line with the positioning point of the precast wall panels on the external floor slab in the vertical direction.

[0007] As a further improvement to this solution, the outer boundary line of the groove coincides with the positioning control line of the wall panel.

[0008] As a further improvement to this solution, the reserved groove is a rectangular groove with an interior angle of 90°.

[0009] As a further improvement to this solution, the reserved groove is an L-shaped groove with an inner angle of 90°.

[0010] As a further improvement to this solution, auxiliary installation equipment is placed in the reserved groove.

[0011] As a further improvement to this solution, the auxiliary installation equipment is a level or a laser emitter.

[0012] As a further improvement to this solution, the outer boundary line of the groove is 100mm from the vertical edge of the precast wall panel and 600mm or 1000mm from the bottom of the precast wall panel.

[0013] Compared with existing technologies, the advantages of this invention are: This invention uses the outer boundary of the groove directly as the positioning control line, reducing manual measurement and marking steps and improving installation efficiency. During construction, installation equipment can be directly embedded into the reserved groove to achieve horizontal and vertical calibration and planar and vertical positioning of the wall panel. This improves both the positioning accuracy of the precast wall panel and installation efficiency; the groove has strong compatibility with auxiliary installation equipment, facilitating on-site construction. The groove structure is simple, easy to prefabricate, and suitable for large-scale application. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-section of the reserved groove in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0018] The diagram is labeled as follows: 1. Precast wall panel; 2. Reserved groove; 3. Auxiliary installation equipment; 4. Outer boundary line of the groove; 5. Wall panel positioning control line; 6. Outer boundary outline of the wall panel; 7. Floor slab; 8. Precast wall panel positioning point; 9. Positioning elevation line. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] like Figure 1 As shown in the figure, this embodiment provides a structure for improving the on-site installation positioning accuracy of prefabricated wall panels, including a prefabricated wall panel 1. The edge or corner of the prefabricated wall panel 1 is provided with a reserved groove 2. The outer boundary line 4 of the reserved groove 2 is on a straight line with the prefabricated wall panel positioning point 8 of the external floor slab 7 in the vertical direction.

[0022] Specifically, the outer boundary line 4 of the groove coincides with the positioning control line 5 of the wall panel.

[0023] Specifically, the reserved groove 2 is a rectangular groove with an interior angle of 90°. Alternatively, the reserved groove 2 is an L-shaped groove with an interior angle of 90°.

[0024] Specifically, an auxiliary installation device 3 is placed in the reserved groove 2. The auxiliary installation device 3 is a level or a laser emitter.

[0025] Furthermore, the outer boundary line 4 of the groove is 100mm from the vertical side of the precast wall panel 1 and 600mm or 1000mm from the bottom of the precast wall panel 1.

[0026] During operation, the precast wall panel 1 is precisely positioned using CNC technology during mold making to ensure that the outer boundary line 4 of the groove coincides with the wall panel positioning control line 5 and is parallel to the outer boundary contour 6 of the wall panel. During installation, the outer boundary line 4 of the groove on the precast wall panel is aligned with the precast wall panel positioning point 8 on the floor slab 7 and the positioning elevation line 9 used for on-site positioning to ensure accurate horizontal and vertical positioning of the precast wall panel 1. The auxiliary installation equipment 3 (level or laser emitter) is then embedded into the precast groove 2. After fine-tuning the wall panel to a horizontal and vertical position, the wall panel connectors are tightened to complete the installation of the precast wall panel.

[0027] This new design uses the outer boundary of the groove as the positioning control line, reducing manual measurement and marking steps and improving installation efficiency. During construction, installation equipment can be directly embedded into the pre-reserved groove to achieve horizontal and vertical calibration of the wall panel, as well as planar and vertical positioning. This improves both the positioning accuracy of precast wall panels and installation efficiency; the groove is highly compatible with auxiliary installation equipment, facilitating on-site construction. The groove structure is simple, easy to prefabricate, and suitable for large-scale application.

[0028] The above description is merely an illustrative example of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.

Claims

1. A structure for improving the positioning accuracy of precast wall panels during on-site installation, comprising precast wall panels (1); characterized in that, The precast wall panel (1) has a reserved groove (2) at its edge or corner. The outer boundary line (4) of the reserved groove (2) is on a straight line with the positioning point (8) of the precast wall panel of the external floor slab (7) in the vertical direction.

2. The structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 1, characterized in that, The outer boundary line (4) of the groove coincides with the positioning control line (5) of the wall panel.

3. The structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 1, characterized in that, The reserved groove (2) is a rectangular groove with an inner angle of 90°.

4. The structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 1, characterized in that, The reserved groove (2) is an L-shaped groove with an inner angle of 90°.

5. A structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 1, characterized in that, The auxiliary installation equipment (3) is placed in the reserved groove (2).

6. A structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 5, characterized in that, The auxiliary installation equipment (3) is a level or a laser emitter.

7. A structure for improving the positioning accuracy of precast wall panels during on-site installation according to claim 1, characterized in that, The outer boundary line (4) of the groove is 100mm from the vertical edge of the precast wall panel (1) and 600mm or 1000mm from the bottom of the precast wall panel (1).