Coiled material edge locking structure

Abstract

The utility model relates to the technical field of waterproof coiled materials, and provides a coiled material edge locking structure aiming at the problem that the laminating stability among multiple layers of structures of an existing waterproof coiled material with a multi-layer composite structure is poor, the coiled material comprises a waterproof base layer, an upper composite layer and a lower composite layer, and the upper composite layer and the lower composite layer are respectively covered on the upper surface and the lower surface of the waterproof base layer. A winding strip is arranged on the side edge of the coiled material, and the waterproof base layer, the upper composite layer and the lower composite layer are all arranged on the outer side wall of the winding strip in a winding mode. A plurality of side edges are arranged on the outer side wall of the winding strip, the near ends of the side edges and the winding strip are integrally formed, and the far ends of the side edges can be arranged away from the winding strip. According to the waterproof coiled material, the side edges of the coiled material are fixed, pressed and wound through the winding strips, so that the side edges of all layers of materials of the waterproof coiled material are pressed and wound, the problem of curled edge separation of the side edges can be fully avoided through the structure formed through winding, and the side edges of the coiled material can be fixed through the winding strips to keep the state of the structure formed through winding.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof coiled materials, in particular to a coiled material edge locking structure. Background Art

[0002] Waterproof membranes are a type of building waterproofing material primarily used for waterproofing, moisture-proofing, and protecting buildings. They typically consist of a multi-layer structure, where the materials are physically or chemically bonded together. The different layers complement each other, leveraging the strengths of each material and improving the membrane's overall performance. For example, patent publication number CN221397781U provides a double-layer composite waterproof membrane comprising nearly ten layers stacked in sequence: a water-absorbing and expanding layer, a waterproof film layer, a first adhesive layer, a protective layer, a base layer, a self-adhesive layer, a second adhesive layer, and a water-absorbing mesh layer. This multi-layer composite structure improves the membrane's water absorption properties, among other things.

[0003] For multi-layer composite waterproofing membranes, ensuring long-term adhesion and stability during use is a critical issue. Currently, most methods use a locking edge assembly to wrap the sides of the membrane. For example, patent publication number CN213772770U provides a polyethylene polypropylene waterproofing membrane with aluminum foil locking edges wrapped around the sides of the membrane body to compress and secure the multiple layers.

[0004] However, most of the multi-layer waterproof membranes currently use the lock edge or lock buckle mentioned above. During use, the joint between the lock edge and the membrane will become loose. As the lock edge loosens or even falls off, the multi-layer structure of the membrane will still curl or separate, which means that the problem of poor bonding stability between the multi-layer structures cannot be completely and effectively solved. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of poor adhesion stability between the layers of existing multi-layer composite waterproof membranes. This application provides a membrane locking structure, which uses winding strips to fix, press and roll the sides of the membrane, so that the sides of each layer of the waterproof membrane are pressed and rolled together. The rolled structure can fully avoid the problem of side edge separation.

[0006] The utility model is achieved through the following technical solutions:

[0007] A roll material locking structure, characterized in that the roll material includes a waterproof base layer, and an upper composite layer and a lower composite layer respectively covering the upper and lower surfaces of the waterproof base layer; a winding strip is provided on the side of the roll material, and the waterproof base layer, the upper composite layer and the lower composite layer are all wound around the outer side wall of the winding strip.

[0008] Preferably, the waterproof base layer, the upper composite layer and the lower composite layer at least wrap around half of the outer circumference of the outer side wall of the winding strip.

[0009] Preferably, the outer side wall of the winding strip is provided with a plurality of side edges, the proximal ends of the side edges are integrally formed with the winding strip, and the distal ends of the side edges can be arranged away from the winding strip.

[0010] Preferably, a flexible metal wire is embedded in the inner cavity of the side edge, and the flexible metal wire is arranged in the same direction as the side edge.

[0011] Preferably, the plurality of side edges are arranged at equal intervals, and the distal ends of the side edges can overlap with the proximal ends of the adjacent side edges.

[0012] Preferably, the plurality of side edges are disposed on opposite sides of the winding strip, and the distal ends of the plurality of side edges located on both sides of the winding strip are disposed in opposite directions.

[0013] The technical solution of the utility model has the following beneficial effects:

[0014] The side edges of the waterproof roll of the present invention are fixed, pressed, and wound by winding strips, so that the side edges of each layer of the waterproof roll are pressed and wound. The wound structure can fully avoid the problem of curling separation on the side edges, and the winding strips can fix the side edges of the roll to maintain the above-mentioned wound structural state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of the coiled material edge locking structure in Example 1;

[0017] Figure 2 Schematic diagram of the structure of the winding strip in Example 1 (the side is in a flat state);

[0018] Figure 3 for Figure 2 A schematic cross-sectional view of the winding strip;

[0019] Figure 4 Schematic diagram of the structure of the winding strip in Example 1 (the side is in a folded state).

[0020] Figure symbols: 1- waterproof base layer, 11- upper composite layer, 12- lower composite layer, 2- winding strip, 21- side, 22- flexible metal wire. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] Example 1

[0025] like Figures 1 to 4 As shown, this embodiment provides a roll material locking structure, the roll material includes a waterproof base layer 1, and an upper composite layer 11 and a lower composite layer 12 respectively covering the upper and lower surfaces of the waterproof base layer 1; the side edge 21 of the roll material is provided with a winding strip 2, and the waterproof base layer 1, the upper composite layer 11 and the lower composite layer 12 are all wound around the outer wall of the winding strip 2.

[0026] In this embodiment, the waterproof base layer 1, upper composite layer 11, and lower composite layer 12 are first laminated together and then wound around three-quarters of the outer circumference of the outer wall of the winding strip 2 to more securely adhere the multi-layer structure under the action of the winding strip 2. After lamination, the multi-layer composite layer needs to wrap around at least half the circumference of the winding strip 2 to achieve the bonding and tightening effect of the winding strip 2 on the multi-layer composite layer. If the wrapping depth exceeds a full circumference of the winding strip 2, material on the edges of the coil will be wasted. Therefore, those skilled in the art will need to adjust the wrapping depth of the multi-layer composite layer around the outer circumference of the winding strip 2 according to actual conditions in actual applications.

[0027] In this embodiment, the outer side wall of the winding strip 2 is provided with multiple side edges 21, the proximal ends of the side edges 21 are integrally formed with the winding strip 2, and the distal ends of the side edges 21 can be set away from the winding strip 2; the multiple side edges 21 are arranged on one opposite side of the winding strip 2, and the multiple side edges 21 located on both sides of the winding strip 2, the distal ends of the side edges 21 are arranged in opposite directions, the multiple side edges 21 are arranged at equal intervals, the length of each side edge 21 is 10 cm, and the proximal end of each side edge 21 starts from the end of the distal end of the previous side edge 21, that is, the distal end of the side edge 21 can overlap with the proximal end of the adjacent side edge 21, thereby ensuring that the side edge 21 can cover the long diameter outer side wall of the entire winding strip 2.

[0028] In this embodiment, the inner cavities of the winding strip 2 and the side 21 are both embedded with flexible metal wires 22 . The flexible metal wires 22 are arranged in the same direction as the side 21 . In this embodiment, the flexible metal wires 22 are copper wires with a thickness of 0.5 mm.

[0029] During use, the waterproof roll is cut according to the needs of the use scenario. When cutting, a length of 5-10 cm more than the required length is needed. Then, the multi-layer composite material of the extra 5-10 cm long roll is cut off, and the winding strip 2 wrapped therein is retained. At this time, by folding the side 21 of the winding strip 2 and fixing it under the action of the flexible metal wire 22, the end of the waterproof roll can maintain the structural problems of each layer of material and the winding strip 2, thereby improving the fitting stability of each layer structure of the waterproof roll during use.

[0030] In summary, the coil locking structure of this embodiment uses the winding strip 2 to fix, press, and wind the side edges 21 of the coil, so that the side edges 21 of each layer of the waterproof coil are pressed and wound. The wound structure can fully avoid the problem of curling separation of the side edges 21, and the winding strip 2 can fix the side edges 21 of the coil to maintain the above-mentioned wound structural state.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coiled material locking structure, characterized in that: The coiled material comprises a waterproof base layer (1), and an upper composite layer (11) and a lower composite layer (12) respectively covering the upper and lower surfaces of the waterproof base layer (1); The side edge (21) of the coiled material is provided with a winding strip (2), and the waterproof base layer (1), the upper composite layer (11) and the lower composite layer (12) are all wound around the outer side wall of the winding strip (2).

2. The coiled material edge locking structure according to claim 1, characterized in that: The waterproof base layer (1), the upper composite layer (11) and the lower composite layer (12) at least wrap around half of the outer circumference of the outer side wall of the winding strip (2).

3. The coiled material edge locking structure according to claim 1 or 2, characterized in that: The outer side wall of the winding strip (2) is provided with a plurality of side edges (21), the proximal ends of the side edges (21) are integrally formed with the winding strip (2), and the distal ends of the side edges (21) can be arranged away from the winding strip (2).

4. The coiled material edge locking structure according to claim 3, characterized in that: A flexible metal wire (22) is embedded in the inner cavity of the side edge (21), and the flexible metal wire (22) is arranged in the same direction as the side edge (21).

5. The coiled material edge locking structure according to claim 3, characterized in that: The plurality of side edges (21) are arranged at equal intervals, and the distal ends of the side edges (21) can overlap with the proximal ends of the adjacent side edges (21).

6. The coiled material edge locking structure according to claim 3, characterized in that: The multiple side edges (21) are arranged on opposite sides of the winding strip (2), and the multiple side edges (21) located on both sides of the winding strip (2) have their distal ends facing opposite directions.

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