Mounting structure for finished decorative molding with facing
By combining integrated moldings with chemical anchors and silicone weather-resistant sealant, the problem of cracking and water seepage at the joints of EPS decorative moldings is solved, realizing the overall installation of finished decorative moldings and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIARD ECO ENERGY SAVING TECH SHANGHAI
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional EPS decorative lines are prone to cracking and water seepage at the joints, making it difficult to guarantee the quality of on-site construction. The construction period is long and the maintenance cost is high, which hinders the development prospects of the material.
The installation structure combines integrated moldings with chemical anchors and silicone weather-resistant sealant. Through the cooperation of modular connectors and plug slots, combined with polyurethane foam and foam strips, the moldings achieve overall connection and waterproofing.
It effectively prevents water seepage at the joints of the moldings, avoids cracking, shortens the construction period, reduces maintenance costs, and improves installation safety and quality stability.
Smart Images

Figure CN224549556U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building exterior wall insulation and decoration technology, specifically relating to an installation structure for finished decorative lines with a decorative finish. Background Technology
[0002] With the development of EPS decorative lines for construction, more and more buildings have adopted prefabricated decorative lines to replace cast-in-place concrete lines in recent years. EPS decorative lines are lightweight, highly malleable, have high impact resistance, good crack resistance, excellent waterproof performance, superior weather resistance, and are easy to install, making them popular among designers in the industry. EPS decorative lines have a compact structure, a delicate surface, and clear lines. The special advantage of factory prefabrication effectively improves the product's fire resistance, making it an irreplaceable new type of decorative material for exterior walls.
[0003] However, traditional EPS decorative moldings require on-site finishing layer construction, and the joints are treated with mortar bonding, with the joints smoothed by squeezing mortar, and the outer side treated with plastering mortar and mesh fabric. Over time, this installation method has led to serious cracking and water seepage problems at the joints. In addition, on-site spraying of the finishing layer cannot guarantee quality, and the on-site construction period is easily prolonged. The more construction steps there are, the greater the quality risk, and the more significantly the later maintenance costs will be, affecting people's normal lives. Therefore, the inability of traditional EPS decorative moldings to integrate the finishing layer seriously hinders the development prospects of this material. Utility Model Content
[0004] The purpose of this utility model is to provide an installation structure for finished decorative lines with a decorative finish, which can avoid the risk of cracking of the lines, while the decorative layer is installed in the factory, achieving true integration of the finished decorative lines, solving the installation system, and reducing cumbersome installation procedures and safety.
[0005] The specific technical solution adopted by this utility model is as follows: An installation structure for a finished decorative molding includes an integrated molding installed on the front side of a base wall. One side of the integrated molding has a slot, and a chemical anchor is installed inside the slot. One end of the chemical anchor is connected to the inner wall of the slot, and the other end of the chemical anchor passes through the integrated molding and extends into the interior of the base wall. A connector is connected to one side of the adjacent integrated molding, and the connector mates with the slot. The side joints of adjacent integrated moldings are bonded with silicone weather-resistant adhesive. The integrated molding is connected to the base wall using a special adhesive.
[0006] Preferably, grooves are provided on both sides of the integrated line, and foam strips are connected to the inner walls of the grooves, with the foam strips located between two adjacent integrated lines.
[0007] Preferably, a gasket is fitted onto the front end of the surface of the chemical anchor, the gasket is located on the rear side of the inner wall of the insertion groove, the nut at the front end of the chemical anchor is in close contact with the gasket, and the gasket is made of stainless steel.
[0008] Preferably, the connector has a slot on its rear side, and the width of the slot is adapted to the diameter of the chemical anchor.
[0009] Preferably, the surface of the connector is uniformly coated with an epoxy resin crosslinking agent, and the epoxy resin crosslinking agent is tightly bonded to the inner wall of the insertion groove.
[0010] Preferably, the inner wall of the insertion groove is filled with polyurethane foam, and the polyurethane foam is located in the gap between the insertion groove and the connector.
[0011] Preferably, the special adhesive is composed of cement-based cementitious materials, polymer materials, fillers, and additives.
[0012] The technical effects achieved by this utility model are as follows: This invention improves the joints and fixing methods of integrated molding lines, concealing the mechanical fixing method within the insertion groove, ensuring both the aesthetics and safety of the molding lines. Furthermore, the cooperation between adjacent modular connectors and the insertion groove strengthens the overall integrity of the molding lines. The interlocking connection allows for easy bonding and positioning of the molding lines on the same plane, forming a unified whole. Polyurethane foam and foam strips flexibly connect the integrated molding lines, providing waterproofing and effectively preventing water seepage at the joints while also preventing thermal bridging. The neutral silicone weather-resistant adhesive at the joints of the integrated molding lines serves both as waterproofing and as a separator for the finishing layer, while also providing elastic connection at the joints to prevent cracking. This not only shortens the construction period but also reduces the significant costs and impacts of later maintenance. Attached Figure Description
[0013] Figure 1 This utility model is a three-dimensional assembly of the connector and the insertion slot; Figure 2 This is a front view of the integrated lines of this utility model; Figure 3 This is a utility model Figure 2 Schematic diagram of the cross-sectional plane at point A; Figure 4 This is a utility model Figure 3 Schematic diagram of the cutting plane at point B.
[0014] The components represented by each number in the attached diagram are listed below: 1. Base wall; 2. Integrated molding; 201. Insert groove; 202. Chemical anchor; 203. Connector; 204. Silicone weather-resistant sealant; 205. Special adhesive; 206. Groove; 3. Foam strip; 4. Gasket; 5. Groove opening; 6. Epoxy resin crosslinking agent; 7. Polyurethane foaming agent. Detailed Implementation
[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0016] like Figures 1-4 As shown, an installation structure for a finished decorative molding includes a base wall 1 and an integrated molding 2. The integrated molding 2 is installed on the front side of the base wall 1. A groove 201 is provided on one side of the integrated molding 2. A chemical anchor 202 is installed inside the groove 201. One end of the chemical anchor 202 is connected to the inner wall of the groove 201, and the other end of the chemical anchor 202 passes through the integrated molding 2 and extends into the interior of the base wall 1. A connector 203 is connected to one side of an adjacent integrated molding 2. The connector 203 mates with the groove 201. The side joints of adjacent integrated moldings 2 are bonded with silicone weather-resistant adhesive 204. The integrated molding 2 is connected to the base wall. The wall 1 is connected by a special adhesive 205. The modular connectors 203 made at the ends of the lines are interlocked with the insertion slots 201, so that the chemical anchors 202 that are mechanically fixed can be hidden after the integrated lines 2 are spliced. At the same time, the interlocking of adjacent integrated lines 2 increases the interconnectivity. It can also be conveniently controlled to be installed on the same horizontal line without slippage, making the construction simpler. In addition, the individual integrated lines 2 that are interlocked with the modular connectors 203 and insertion slots 201 become a whole, which increases the safety of the integrated lines 2 and can effectively prevent the danger of individual integrated lines 2 falling, thereby improving the safety of the integrated lines 2 after installation.
[0017] like Figure 1As shown, grooves 206 are provided on both sides of the integrated strip 2. Foam strips 3 are connected to the inner walls of the grooves 206. The foam strips 3 are located between two adjacent integrated strips 2. As an elastic material, the foam strips 3 can easily fill the grooves 206 between the two strips during installation. During installation, the foam strips 3 can be limited and installed in the grooves 206. This not only prevents the foam strips 3 from shifting during installation, but also reduces the gap between the two adjacent integrated strips 2 through the setting of the grooves 206. At the same time, the foam strips 3 improve the thermal insulation, waterproof sealing and installation stability of the integrated strip 2 through elastic buffering, sealing and auxiliary fixation. They can also be used as a dimensional reference during installation, which can well control the uniformity of the gap width of the integrated strip 2 and the thickness of the neutral silicone weather-resistant sealant 204 afterward. They also provide support when applying the neutral silicone weather-resistant sealant 204.
[0018] like Figure 3 and Figure 4 As shown, a washer 4 is fitted on the front end of the surface of the chemical anchor 202. The washer 4 is located on the rear side of the inner wall of the insertion groove 201. The nut at the front end of the chemical anchor 202 is in close contact with the washer 4. The washer 4 is made of stainless steel. The chemical anchor 202 firmly bonds the screw to the dust collection wall with chemical adhesive to realize the transfer of mechanical load. It has the characteristics of strong anchoring force and good weather resistance. Moreover, the bonding force is uniform and the load-bearing capacity can reach 10kN-50kN. At the same time, the stainless steel washer 4 is used to fix the stainless steel nut before installation, which can increase the contact area between the head of the chemical anchor 202 nut and the connected part, and avoid the chemical anchor 202 nut directly squeezing the integrated line 2, which would cause surface deformation or damage.
[0019] like Figure 1 and Figure 3 As shown, a slot 5 is provided on the rear side of the connector 203. The width of the slot 5 is adapted to the diameter of the chemical anchor 202. When the connector 203 is inserted into the insertion slot 201, the slot 5 on the rear side of the connector 203 can be adapted to the chemical anchor 202, so as to avoid the chemical anchor 202 from blocking the connector 203 from smoothly connecting with the insertion slot 201, thereby improving the assembly efficiency.
[0020] like Figure 2 and Figure 4 As shown, the surface of the connector 203 is uniformly coated with epoxy resin crosslinking agent 6. The epoxy resin crosslinking agent 6 is tightly bonded to the inner wall of the insertion groove 201. Through the rapid reaction of epoxy resin crosslinking agent 6 and curing agent at a ratio of 1:0.5, curing is completed within minutes at room temperature. This effectively improves the bonding speed, bonding strength, and waterproofness, allowing the connector 203 of the integrated line 2 to be stably connected to the insertion groove 201, and effectively preventing water from entering the gaps of the integrated line 2.
[0021] like Figure 4 As shown, the inner wall of the insertion groove 201 is filled with polyurethane foam 7. The polyurethane foam 7 is located in the gap between the insertion groove 201 and the connector 203. The polyurethane foam 7 has good waterproof function and strong adhesion, which can connect the two integrated lines 2 together well. At the same time, the polyurethane foam 7 has strong plasticity, which can fill the gap between the modular connector 203 and the insertion groove 201 tightly, thereby improving the waterproofness of the joint of the integrated line 2.
[0022] like Figure 3 As shown, the special adhesive 205 is composed of cement-based cementitious materials, polymer materials, fillers, and additives. Cement-based cementitious materials, as one of the main components, have excellent bonding performance, ensuring high bonding strength and effectively improving the connectivity of the integrated line 2. The polymer materials can improve the performance of cement-based cementitious materials, resulting in better bonding strength and effectively improving weather resistance and crack resistance. At the same time, they have good flexibility, which can improve the tensile and deformation resistance of the adhesive. Especially in environments with large temperature differences, they can prevent cracks from appearing at the joint of the integrated line 2 due to temperature changes.
[0023] The working principle of this utility model is as follows: When installing the integrated strip 2, the line is marked according to the design position; the installation positions of all chemical anchors 202 are determined and positioned, and then holes are drilled in the base wall 1 with an impact drill to embed all chemical anchors 202. After the chemical anchors 202 are cured and locked, the special adhesive 205 is fully applied to the bonding surface of the integrated strip 2; the first integrated strip 2 is positioned and pasted, and at the same time, the screw of the chemical anchor 202 is penetrated through the female end of the integrated strip 2, and fixed with a stainless steel nut and washer 4. Do not tighten too much force, just enough to apply force. When pasting the second integrated strip 2, according to the position of the screw of the female end nut of the first integrated strip 2, a portable electric heating cutter is first used. The cutting pen is used to cut off the end of the second integrated line 2. Then, the entire end of the second integrated line 2 and the inside of the female end of the first integrated line 2 are evenly coated with epoxy resin crosslinking agent 6 using a brush. After the coating is completed, the end connector 203 of the second integrated line 2 is immediately inserted into the female end insertion groove 201 of the first integrated line 2, while leaving a gap of 6mm-8mm for later use of polyurethane foam 7 for filling, foam strip 3 for sealing, and neutral silicone weather-resistant sealant 204. After the second integrated line 2 is fixed in the insertion groove 201, its female end insertion groove 201 is also fixed with stainless steel nuts and washers 4. Subsequent integrated lines 2 are fixed in the same way. After all the integrated molding strips 2 are pasted, fill the gaps in the integrated molding strips 2 with polyurethane foam 7. Note that after the polyurethane foam 7 dries, it should be 50mm away from the surface of the integrated molding strips 2. Remove any excess foam with a blade and smooth it out. After removing and smoothing the polyurethane foam 7, use foam strips 3 to fill the gaps on the surface of the integrated molding strips 2, again 5mm away from the surface. Finally, apply the sealant. Cover both sides of the gaps in the integrated molding strips 2 with masking tape, leaving a 1-2mm margin to prevent gaps from forming due to shrinkage of the neutral silicone weather-resistant sealant 204 later. Squeeze in the neutral silicone weather-resistant sealant 204 and smooth it out. After completion, remove the masking tape and protective film.
[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. An installation structure for a finished decorative molding with a decorative finish, characterized in that: The system includes an integrated strip (2) installed on the front side of the base wall (1). One side of the integrated strip (2) has a slot (201). A chemical anchor (202) is installed inside the slot (201). One end of the chemical anchor (202) is connected to the inner wall of the slot (201). The other end of the chemical anchor (202) passes through the integrated strip (2) and extends to the interior of the base wall (1). A connector (203) is connected to one side of the adjacent integrated strip (2). The connector (203) is connected to the slot (201). The side connection of the adjacent integrated strip (2) is bonded with silicone weather-resistant adhesive (204). The integrated strip (2) is connected to the base wall (1) with a special adhesive (205).
2. The installation structure of a finished decorative molding with a decorative surface according to claim 1, characterized in that: The integrated line (2) has grooves (206) on both sides, and the inner wall of the groove (206) is connected to a foam strip (3), which is located between two adjacent integrated lines (2).
3. The installation structure of a finished decorative molding with a decorative surface according to claim 1, characterized in that: A gasket (4) is fitted on the front end of the surface of the chemical anchor (202). The gasket (4) is located on the rear side of the inner wall of the insertion groove (201). The nut at the front end of the chemical anchor (202) is in close contact with the gasket (4). The gasket (4) is made of stainless steel.
4. The installation structure of a finished decorative molding with a decorative surface according to claim 1, characterized in that: The connector (203) has a slot (5) on its rear side, the width of which is adapted to the diameter of the chemical anchor (202).
5. The installation structure of a finished decorative molding with a decorative surface according to claim 1, characterized in that: The surface of the connector (203) is uniformly coated with epoxy resin crosslinking agent (6), and the epoxy resin crosslinking agent (6) is tightly bonded to the inner wall of the insertion groove (201).
6. The installation structure of a finished decorative molding with a decorative surface according to claim 1, characterized in that: The inner wall of the insertion groove (201) is filled with polyurethane foam (7), and the polyurethane foam (7) is located in the gap between the insertion groove (201) and the connector (203).