Edge crack-proof edging strip structure for extruded sheet

CN224551277UActive Publication Date: 2026-07-24SHANGHAI TERUN BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI TERUN BIOTECHNOLOGY CO LTD
Filing Date
2025-10-21
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing aluminum alloy edging strips are difficult to adapt flexibly to the actual size of extruded polystyrene boards, resulting in increased construction time and labor costs.

Method used

It adopts an L-shaped frame and an adjustable strip frame structure, combined with sealing strips, positioning blocks and conical spikes, to achieve free length adaptation and tight fit, and is fixed by installation screws and conical spikes.

Benefits of technology

It enables flexible adaptation of the length of extruded polystyrene boards, improving installation efficiency, sealing performance, and structural stability, while reducing construction time and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an edge anti -crack edge -banding strip structure for extruded board belongs to extruded board edge -banding strip technical field, including L shape edge -banding frame, L shape edge -banding frame is four groups setting, and each group L shape edge -banding frame end portion inner wall all is equipped with the insertion slot, and a plurality of insertion slot interiors all have the sliding connection of strip shape edge -banding frame, the both ends of strip shape edge -banding frame are symmetric and equipped with a plurality of mounting holes, and the both ends of L shape edge -banding frame correspond and are equipped with the counterbore, and the counterbore inside is equipped with the mounting screw, this edge anti -crack edge -banding strip structure for extruded board is inserted with adjustable strip shape edge -banding frame through four groups L shape edge -banding frame and cooperates, realizes length free adaptation extruded board size, combines sealing strip, positioning insert block and cone sting insert rod structure, and only needs to adjust the insertion length, fixed screw and inserts cone sting when installing, can complete close adhesion, sealed anti -crack and accurate splicing, improves installation efficiency, sealing property and structural stability.
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Description

Technical Field

[0001] This utility model specifically relates to an edge-crack-resistant edging strip structure for extruded polystyrene (XPS) boards, belonging to the technical field of XPS board edging strips. Background Technology

[0002] Extruded polystyrene (XPS) board is a common insulation material, mainly made of polystyrene resin through processes such as heating, mixing, and extrusion. Edge banding is a material used to wrap the edges of XPS boards, usually made of PVC or aluminum alloy, which further improves the installation effect and durability of XPS boards.

[0003] When using aluminum alloy edging strips to edge extruded polystyrene (XPS) boards, the length of these strips is mostly a pre-made standardized length, which is difficult to flexibly adapt to the actual size and diverse length and width specifications of the XPS boards. This requires on-site cutting of the edging strips, thereby increasing construction time and labor costs. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing an edge-protecting strip structure for extruded polystyrene boards. This structure includes four sets of L-shaped edge-protecting frames. Each set of L-shaped edge-protecting frames has an insertion groove on its inner wall at one end. Multiple sets of strip-shaped edge-protecting frames are slidably connected inside these grooves. Multiple sets of mounting holes are symmetrically opened at both ends of each strip-shaped edge-protecting frame. Countersunk holes are correspondingly opened at both ends of the L-shaped edge-protecting frame, and mounting screws are installed inside these countersunk holes.

[0005] The inner wall edge of the L-shaped frame is provided with an L-shaped sealing strip, and the edge of the strip-shaped frame is also provided with a strip sealing strip. The end of the L-shaped sealing strip away from the L-shaped frame and the end of the strip-shaped sealing strip away from the strip sealing strip are on the same horizontal plane.

[0006] Two sets of L-shaped frame outer walls are equipped with first positioning plates, and two other sets of L-shaped frame outer walls are equipped with second positioning plates. The first positioning plate has a positioning groove inside, and the second positioning plate has a positioning insert block on one side that fits the shape of the positioning groove.

[0007] An annular groove is provided at the end of the mounting hole, and a sealing plug is inserted into the annular groove.

[0008] Multiple sets of insert rods are fixedly installed on the inner side of the strip-shaped frame, and the other end of the insert rod is fixedly connected to a spike.

[0009] Both the L-shaped and strip-shaped borders are made of stainless steel.

[0010] Beneficial effects:

[0011] By using four sets of L-shaped frame edges and adjustable strip frame edges for interlocking, the length can be freely adapted to the size of the extruded polystyrene board. Combined with the sealing strip, positioning blocks and conical spikes, during installation, only the interlocking length needs to be adjusted, the fixing screws fixed and the conical spikes inserted to achieve a tight fit, sealing against cracks and precise splicing, thus improving installation efficiency, sealing performance and structural stability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the L-shaped frame structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the strip-shaped frame structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the first positioning plate and the second positioning plate of this utility model.

[0016] In the diagram: 1. L-shaped frame; 2. Insertion groove; 3. Strip frame; 4. Mounting hole; 5. Countersunk hole; 6. Mounting screw; 7. L-shaped sealing strip; 8. Strip sealing strip; 9. First positioning plate; 10. Second positioning plate; 11. Positioning groove; 12. Positioning insert; 13. Annular groove; 14. Sealing block; 15. Insert rod; 16. Conical spike. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4As shown, an edge-protecting strip structure for extruded polystyrene (XPS) boards includes an L-shaped frame 1, which is arranged in four sets. Each set of L-shaped frame 1 has an insertion groove 2 on the inner wall of its end. A strip frame 3 is slidably connected inside the multiple sets of insertion grooves 2. Multiple sets of mounting holes 4 are symmetrically opened at both ends of the strip frame 3. Countersunk holes 5 are correspondingly opened at both ends of the L-shaped frame 1, and mounting screws 6 are installed inside the countersunk holes 5. The L-shaped frame 1 is used to form the corner part of the edge-protecting structure. The insertion groove 2 is used to slide with the strip frame 3 to achieve length adjustment. The length of the strip frame 3 extending into the insertion groove 2 can be freely adjusted according to the actual length of the XPS board, thereby adjusting the total length of the entire edge strip. The multiple sets of mounting holes 4 allow fixing at different positions to adapt to different installation requirements. The countersunk holes 5 are used to accommodate the heads of the mounting screws 6 to improve the flatness of the edge strip.

[0019] Furthermore, the inner edge of the L-shaped frame 1 is provided with an L-shaped sealing strip 7, and the edge of the strip frame 3 is also provided with a strip sealing strip 8. The end of the L-shaped sealing strip 7 away from the L-shaped frame 1 and the end of the strip sealing strip 8 away from the strip sealing strip 8 are on the same horizontal plane. The L-shaped sealing strip 7 is used to enhance the sealing effect at the corner, and the strip sealing strip 8 is used to improve the sealing effect on the straight edge of the extruded board. The strip sealing strip 8 and the L-shaped sealing strip 7 work together to ensure the sealing continuity of the entire edging structure.

[0020] Furthermore, two sets of L-shaped frame edges 1 are equipped with first positioning plates 9 on their outer walls, and two sets of L-shaped frame edges 1 are equipped with second positioning plates 10 on their corresponding outer walls. The first positioning plate 9 has a positioning groove 11 inside, and the second positioning plate 10 has a positioning insert 12 on one side that fits the shape of the positioning groove 11. When multiple extruded polystyrene boards need to be spliced ​​and installed, the first positioning plate 9 provides a positioning reference through its internal positioning groove 11, guiding the positioning insert 12 of the second positioning plate 10, ensuring that the frame edges of adjacent extruded polystyrene boards can be accurately aligned, and reducing positioning errors during installation.

[0021] Furthermore, an annular groove 13 is provided at the end of the mounting hole 4, and a sealing block 14 is inserted into the annular groove 13; wherein the annular groove 13 is used to accommodate the plug of the sealing block 14, and the sealing block 14 is used to seal the unused mounting hole 4 to prevent air and moisture from entering the interior of the edging structure through the mounting hole 4.

[0022] Furthermore, multiple sets of insert rods 15 are fixedly installed on the inner side of the strip-shaped frame 3, and the other end of the insert rod 15 is fixedly connected to a conical spike 16; the insert rod 15 is used to insert into the interior of the extruded board, increasing the connection points between the strip-shaped frame 3 and the frame, and improving the overall fixation firmness and stability, while the conical spike 16 has a sharp design, making it easy for the insert rod 15 to be easily inserted into the surface of the extruded board.

[0023] Furthermore, both the L-shaped frame 1 and the strip frame 3 are made of stainless steel; the stainless steel material can reduce the corrosion of the L-shaped frame 1 and the strip frame 3, and improve their service life.

[0024] Working steps: Place four sets of L-shaped binding edges 1 at the four corners of the extruded polystyrene board. Then, insert both ends of the strip binding edges 3 into the insertion grooves 2 of the L-shaped binding edges 1. Adjust the length of the strip binding edges 3 extending into the insertion grooves 2 according to the actual length of the extruded polystyrene board, thereby adjusting the total length of the binding strip. Ensure that the strip binding edges 3 fit tightly against the straight edge of the extruded polystyrene board. Then, pass the mounting screws 6 through the mounting holes 4 opposite to the countersunk holes 5 for fixing. During this process, the insert rod 15 is easily inserted into the extruded polystyrene board through the sharp design of the conical spike 16. The inner edge of the plastic board increases the connection points between the strip-shaped frame 3 and the extruded board. The L-shaped sealing strip 7 and the strip sealing strip 8 work together to continuously seal the corners and straight edges of the extruded board. At the same time, when multiple sets of extruded boards are spliced ​​and installed later, the positioning groove 11 inside the first positioning plate 9 provides a positioning reference and guides the positioning block 12 of the second positioning plate 10 to be inserted into the positioning groove 11. This ensures that the frames of adjacent extruded boards can be accurately aligned, reduces positioning errors during installation, and improves the splicing effect.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An edge-protecting strip structure for extruded polystyrene boards, comprising an L-shaped edge frame (1), characterized in that: The L-shaped frame (1) is set in four groups. Each group of L-shaped frame (1) has an insertion groove (2) on the inner wall of its end. Multiple insertion grooves (2) are slidably connected to strip frame (3). Multiple sets of mounting holes (4) are symmetrically opened at both ends of the strip frame (3). Countersunk holes (5) are opened at both ends of the L-shaped frame (1). Mounting screws (6) are installed inside the countersunk holes (5).

2. The edge-protecting strip structure for extruded polystyrene boards as described in claim 1, characterized in that: The inner wall edge of the L-shaped frame (1) is provided with an L-shaped sealing strip (7), and the edge of the strip frame (3) is also provided with a strip sealing strip (8). The end of the L-shaped sealing strip (7) away from the L-shaped frame (1) and the end of the strip sealing strip (8) away from the strip sealing strip (8) are on the same horizontal plane.

3. The edge-protecting strip structure for extruded polystyrene boards as described in claim 1, characterized in that: Two sets of L-shaped frame frames (1) are equipped with a first positioning plate (9) on their outer walls, and two other sets of L-shaped frame frames (1) are equipped with a second positioning plate (10) on their outer walls. The first positioning plate (9) has a positioning groove (11) inside, and the second positioning plate (10) has a positioning insert (12) on one side that fits the shape inside the positioning groove (11).

4. The edge-protecting strip structure for extruded polystyrene boards as described in claim 1, characterized in that: An annular groove (13) is provided at the end of the mounting hole (4), and a sealing block (14) is inserted inside the annular groove (13).

5. The edge-protecting strip structure for extruded polystyrene boards as described in claim 1, characterized in that: Multiple sets of insert rods (15) are fixedly installed on the inner side of the strip-shaped frame (3), and the other end of the insert rod (15) is fixedly connected with a spike (16).

6. The edge-protecting strip structure for extruded polystyrene boards as described in claim 1, characterized in that: Both the L-shaped frame (1) and the strip frame (3) are made of stainless steel.