External enclosure connecting structure
By setting angle steel and hook bolts on the structural beams, with the right-angle fixing rod of the hook bolt located on the outside and overlapping the angle steel, and combined with the design of waterproof and heat insulation layers, the problem of difficult hook covering in non-masonry exterior wall connections is solved, simplifying the construction process, reducing costs, and improving connection reliability and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCTEG CHONGQING ENG CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-19
AI Technical Summary
In existing non-masonry exterior wall panel connection structures, the hooks are located on the inside, making it difficult to cover with plaster, increasing construction procedures and costs.
Angle steel and hook bolts are installed on the structural beams. The right-angle fixing rod of the hook bolt is located on the outside of the wall panel, overlaps the angle steel, and is fixed by expansion anchors. Combined with the waterproof and heat insulation layer design, a multi-level waterproof barrier is formed.
It avoids the difficulties of hook head coverage, simplifies the construction process, reduces costs, improves connection reliability and applicability, and enhances engineering adaptability.
Smart Images

Figure CN224259661U_ABST
Abstract
Description
Technical Field
[0001] This solution relates to the field of building engineering, specifically to an external envelope connection structure. Background Technology
[0002] In the field of building construction, the use of wall panel installation for non-masonry exterior walls is gradually gaining application. However, the current connection structure of this type of exterior wall panel still has many shortcomings. In existing non-masonry exterior wall panel connection methods, the hook is often placed on the inside, such as the ALC wall panel installation hook bolt disclosed in patent CN210857834U. This bolt uses a right-angle fixing rod at one end of the screw to contact the edge of the wall panel, and is tightened on the other side of the wall using a nut and washer. While this structure achieves rapid wall panel fixing through threaded transmission and solves the problem of installation convenience, it essentially continues the design logic of internal wall panel connections. In non-masonry exterior wall applications, the following defects are exposed: when the hook is located on the inside, it cannot be effectively covered after plastering and other processes, resulting in obvious defects on the building facade. Taking CN210857834U patent as an example, the fixing rod and the screw are set at right angles. During installation, the fixing rod is located on the inside of the wall panel, and the screw passes through the wall and is tightened on the outside with a nut. At this time, the edge area of the fixing rod on the inside of the wall panel is difficult to cover with conventional plastering process, which forces the additional use of suspended ceiling or edge treatment during construction, increasing the construction process and cost. Utility Model Content
[0003] The present invention aims to provide an external enclosure connection structure that improves the connection structure of non-masonry exterior walls to avoid the need to cover the hooks after the non-masonry exterior walls are installed, thereby reducing construction procedures and costs.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an external enclosure connection structure, set on a structural beam, for connecting ALC exterior wall panels, including a support component, the support component including angle steel and hook bolts, the angle steel being fixed on the structural beam, the hook bolt including a right-angle fixing rod and a bolt body, the right-angle fixing rod overlapping the angle steel and being fixedly connected to the angle steel and located on the outside of the wall panel.
[0005] The beneficial effects of this solution are as follows: by setting the right-angle fixing rod of the hook bolt on the outside of the wall panel and overlapping it with the angle steel fixed on the structural beam, the hook head of the hook bolt is located on the visible side of the exterior wall. This avoids the problem of difficult plastering and covering caused by the hook head being hidden inside the wall panel in traditional structures. Thus, it effectively solves the exterior facade defects caused by improper hook head position in the application of existing connection structures in non-masonry exterior walls, saves the additional concealing process such as suspended ceilings or edging, simplifies the construction process, and reduces construction costs and time.
[0006] In addition, the hook bolts and angle steel are connected by lap joints, which not only makes installation convenient and connection reliable, but also facilitates later inspection and maintenance, improving the overall applicability and engineering adaptability of the external enclosure connection structure. It is particularly suitable for non-masonry exterior wall systems in prefabricated buildings.
[0007] Furthermore, the angle steel is installed along its entire length, and several expansion anchors are installed between the angle steel and the structural beam.
[0008] Beneficial effects: The continuous angle steel provides continuous support and restraint for the subsequent installation of wall panels, preventing them from tipping over during installation; the expansion bolts ensure the connection strength between the angle steel and the structural beam, guaranteeing the stability of the angle steel and providing a stable installation surface for the subsequent wall panel installation, thereby positioning the exterior wall panels and preventing them from tilting outwards.
[0009] Furthermore, the spacing between adjacent expansion anchors is less than or equal to 600 mm.
[0010] Furthermore, support components are installed on the upper and lower sides of the structural beam.
[0011] Furthermore, it also includes a waterproof structure, which includes a waterproof layer. The waterproof layer is installed at the joints between the angle steel and the structural beams and the ALC exterior wall panels, and the thickness of the waterproof layer is not less than 1.5mm.
[0012] Furthermore, the waterproof layer is a structural sealant, and the waterproof structure also includes a polyurethane coating. The polyurethane coating is placed between the ALC exterior wall panel and the structural beam and combines with the structural sealant to form a multi-level waterproof barrier.
[0013] Furthermore, it also includes an insulation layer, which is fixed to the exterior wall surface corresponding to the structural beam and extends to the ALC exterior wall panels on both sides of the structural beam. Attached Figure Description
[0014] Figure 1 This is a cross-sectional view of the installation state of an embodiment of this utility model;
[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0016] The reference numerals in the accompanying drawings include: structural beam 11, exterior wall panel 12, angle steel 21, expansion bolt 22, hook bolt 23, and insulation layer 3. Detailed Implementation
[0017] Example 1
[0018] Example 1 is basically as shown in the appendix. Figure 1 As shown, Figure 1The diagram shows an external enclosure connection structure, which is installed on the structural beam 11 and used for connecting the ALC exterior wall panel 12. It includes a support assembly, which includes angle steel 21, expansion bolts 22 and hook bolts 23. The angle steel 21 is installed along both sides of the structural beam 11 and is fixed to the structural beam 11 by the expansion bolts 22. The spacing between adjacent expansion bolts 22 is ≤600mm. The hook bolt 23 includes a right-angle fixing rod and a bolt body. The right-angle fixing rod overlaps the angle steel 21 and is fixedly connected to the angle steel 21. Specifically, the angle steel 21 is model L63*63*6, the expansion bolt 22 is M12, the spacing between adjacent expansion bolts 22 is 600mm, one side of the angle steel 21 is fixedly connected to the structural beam 11 through the expansion bolt 22, and the other side of the angle steel 21 serves as the support and limiting plane of the exterior wall panel 12. The right-angle fixing rod of the hook bolt 23 is welded to the support and limiting plane formed by the angle steel 21. The bolt body and the right-angle fixing rod are integrally formed to form the ALC exterior wall panel 12 installation position, thereby fixing the ALC exterior wall panel 12 installation position to the structural beam 11 through the ALC exterior wall panel 12 installation position.
[0019] In this design, the continuous angle steel 21 provides continuous support and restraint for the subsequent installation of the wall panels, and prevents the wall panels from tipping over during installation. At the same time, one side of the angle steel 21 is fixedly connected to the structural beam 11 by expansion bolts 22 with a spacing of ≤600mm, ensuring the connection strength between the angle steel 21 and the structural beam 11 and guaranteeing the stability of the angle steel 21. The other side serves as a support and restraint structure for the wall panels, providing a stable installation surface for the subsequent installation of the wall panels.
[0020] Example 2
[0021] Example 2 is basically the same as Example 1, except that it also includes a thermal insulation layer 3, such as... Figure 2 As shown, the insulation layer 3 is fixed to the exterior wall surface corresponding to the structural beam 11 and extends to the ALC exterior wall panels 12 on both sides of the structural beam 11. This covers the right-angle fixing rod of the hook bolt 23 through the insulation layer 3, reducing the thickness of the plaster on the building's exterior wall surface. This reduces the impact of external temperature changes on the joint between the structural beam 11 and the ALC exterior wall panel 12, improving the usability of the support components.
[0022] Example 3
[0023] Based on Example 2, a waterproof structure is also included. The waterproof structure includes a waterproof layer and a polyurethane coating. The waterproof layer is a structural sealant, which is applied at the joints between the angle steel 21, the structural beam 11, and the ALC exterior wall panel 12. In this example, the thickness of the waterproof layer is 1.5 mm. The polyurethane coating is applied between the insulation layer 3, the ALC exterior wall panel 12, and the structural beam 11, and is combined with the structural sealant to form a multi-level waterproof barrier.
[0024] This solution achieves an integrated effect by coordinating the design of the building envelope's connection system, sealing system, and support system. This represents a technological leap in the building envelope system, from "discrete connection" to "continuous force transmission," from "passive waterproofing" to "active waterproofing and drainage combination," and from "manual leveling" to "mechanical positioning."
[0025] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An external enclosure connection structure, installed on a structural beam, for connecting ALC exterior wall panels, characterized in that: It includes a support assembly, which includes angle steel and hook bolts. The angle steel is fixed to the structural beam, and the hook bolt includes a right-angle fixing rod and a bolt body. The right-angle fixing rod overlaps the angle steel and is fixedly connected to the angle steel and is located on the outside of the wall panel.
2. The outer sheath connection structure according to claim 1, characterized in that: The angle steel is installed along its entire length, and several expansion anchors are installed between the angle steel and the structural beam.
3. The outer sheath connection structure according to claim 2, characterized in that: The spacing between adjacent expansion anchors is less than or equal to 600 mm.
4. The outer sheath connection structure according to claim 3, characterized in that: Support components are installed on the upper and lower sides of the structural beam.
5. The outer sheath connection structure according to claim 4, characterized in that: It also includes a waterproof structure, a waterproof layer, and a waterproof layer installed at the joints between the angle steel and the structural beams and the ALC exterior wall panels, and the thickness of the waterproof layer is not less than 1.5mm.
6. The outer sheath connection structure according to claim 5, characterized in that: It also includes an insulation layer, which is fixed to the exterior wall surface corresponding to the structural beam and extends to the ALC exterior wall panels on both sides of the structural beam.
7. The outer enclosure connection structure according to claim 6, characterized in that: The waterproof layer is a structural sealant, and the waterproof structure also includes a polyurethane coating. The polyurethane coating is applied between the insulation layer, the ALC exterior wall panel, and the structural beams, and combines with the structural sealant to form a multi-level waterproof barrier.