Efficient occlusion type lap joint waterproof coiled material
By setting adhesive and fixing parts on the waterproof membrane sheet and using the adhesive layer to achieve interlocking connection of the waterproof membrane, the problem of water seepage during the laying process of the waterproof membrane is solved, and a highly efficient waterproof and sealing effect is achieved.
Patent Information
- Application Number
- CN202423154679.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing waterproof membranes are difficult to interlock efficiently during installation, leading to frequent water seepage.
The left and right waterproof membrane sheets are respectively equipped with adhesive and fixing parts. They are connected by first and second adhesive layers. The left and right waterproof membrane sheets are firmly bonded together by the adhesive layers to form a highly efficient waterproof seal.
It achieves efficient interlocking connections between waterproof membranes, preventing water seepage and improving waterproofing performance.
Smart Images

Figure CN223644441U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-efficiency interlocking waterproof membrane, belonging to the technical field of waterproof membranes. Background Technology
[0002] Waterproof membrane is a rollable sheet-like waterproof material, mainly used for building roofs, underground waterproofing projects, etc. It can effectively prevent the penetration of rainwater, groundwater and other water. Waterproof membrane has good waterproof performance and can withstand a certain water pressure. Its waterproof principle is to prevent water from passing through through the dense structure of the membrane itself and the good overlap between the membranes.
[0003] Waterproof membranes are commonly used materials, but in current applications, they are typically laid and connected using adhesives or hot-melt methods. However, it is difficult for adjacent membranes to interlock properly, resulting in ineffective waterproofing and sealing, and water seepage is likely to occur. To address this issue, we provide a high-efficiency interlocking waterproof membrane to solve these problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a highly efficient interlocking waterproof membrane, the specific technical solution of which is as follows:
[0005] A high-efficiency interlocking waterproof membrane includes a left waterproof membrane sheet, a right waterproof membrane sheet on the right side of the left waterproof membrane sheet, an adhesive part and a fixing part respectively provided on the left end of the right waterproof membrane sheet, an overlap part provided on the right end of the left waterproof membrane sheet, a first adhesive layer provided on the upper surface of the fixing part, and a second adhesive layer provided on the upper surface of the overlap part.
[0006] Preferably, the right waterproof membrane sheet includes a polyethylene base layer, a polyolefin layer, an ethylene propylene rubber layer, and a corrosion-resistant bottom layer, wherein the bottom surface of the polyethylene base layer is fixedly connected to the upper surface of the polyolefin layer.
[0007] Preferably, the bottom surface of the polyolefin layer is bonded to the upper surface of the ethylene propylene rubber layer, and the bottom surface of the ethylene propylene rubber layer is fixedly connected to the upper surface of the corrosion-resistant substrate.
[0008] Preferably, a protective film is adhered to the upper surface of the second adhesive layer, and the second adhesive layer is located below the adhesive portion.
[0009] Preferably, the bottom surface of the overlapping portion is bonded to the upper surface of the fixing portion through the upper surface of the first adhesive layer.
[0010] Preferably, both the left and right waterproof membrane sheets are made of the same material.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This highly efficient interlocking waterproof membrane, through the setting of the adhesive part at the left end of the right waterproof membrane sheet, allows the fixing part to be unfolded, and the first adhesive layer can be used to bond the overlapping part to the surface of the fixing part. Through the setting of the second adhesive layer on the surface of the overlapping part, the adhesive part can be firmly bonded to the surface of the second adhesive layer, thereby enabling the left and right waterproof membrane sheets to interlock and connect, achieving a highly efficient waterproof and sealing effect and preventing water seepage. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0014] Figure 2 This is a front view of the present invention;
[0015] Figure 3 This is a sectional view of the right-hand waterproof membrane sheet in this utility model.
[0016] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0017] Figure descriptions: 1. Left waterproof membrane sheet; 2. Right waterproof membrane sheet; 201. Polyethylene base layer; 202. Polyolefin layer; 203. Ethylene propylene rubber layer; 204. Corrosion-resistant base layer; 3. Adhesive part; 4. Fixing part; 5. Overlapping part; 6. Second adhesive layer; 7. Protective film; 8. First adhesive layer. Detailed Implementation
[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[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] Please see Figure 1-4In this utility model, a high-efficiency interlocking waterproof membrane includes a left waterproof membrane sheet 1, a right waterproof membrane sheet 2 on the right side of the left waterproof membrane sheet 1, an adhesive part 3 and a fixing part 4 respectively on the left end of the right waterproof membrane sheet 2, an overlapping part 5 on the right end of the left waterproof membrane sheet 1, a first adhesive layer 8 on the upper surface of the fixing part 4, and a second adhesive layer 6 on the upper surface of the overlapping part 5. By setting the adhesive part 3 at the right waterproof membrane sheet 2, the fixing part 4 can be unfolded, and the overlapping part 5 can be firmly bonded to the surface of the fixing part 4 by the first adhesive layer 8.
[0021] Preferably, the waterproof membrane sheet 2 includes a polyethylene base layer 201, a polyolefin layer 202, an ethylene propylene rubber layer 203, and a corrosion-resistant underlayer 204. The bottom surface of the polyethylene base layer 201 is fixedly connected to the upper surface of the polyolefin layer 202, the bottom surface of the polyolefin layer 202 is bonded to the upper surface of the ethylene propylene rubber layer 203, and the bottom surface of the ethylene propylene rubber layer 203 is fixedly connected to the upper surface of the corrosion-resistant underlayer 204. Through the arrangement of the polyethylene base layer 201, the polyolefin layer 202, the ethylene propylene rubber layer 203, and the corrosion-resistant underlayer 204, a waterproof membrane sheet can be formed, which has high tensile strength and tear resistance, good abrasion resistance, convenient self-adhesive properties for construction, and excellent waterproof effect.
[0022] Preferably, a protective film 7 is adhered to the upper surface of the second adhesive layer 6. The second adhesive layer 6 is located below the adhesive portion 3. The bottom surface of the overlapping portion 5 is adhered to the upper surface of the fixing portion 4 through the upper surface of the first adhesive layer 8. The left waterproof membrane sheet 1 and the right waterproof membrane sheet 2 are made of the same material. The protective film 7 plays a role in protecting the second adhesive layer 6, which can make the second adhesive layer 6 and the overlapping portion 5 more firmly connected.
[0023] The working principle of this utility model is as follows:
[0024] When using the waterproof membrane sheet 2 and the waterproof membrane sheet 1, the adhesive part 3 is first opened to allow the fixing part 4 to unfold. Then, the overlapping part 5 is bonded to the surface of the fixing part 4. The first adhesive layer 8 is used to make it firmly connected. Next, the protective film 7 above the second adhesive layer 6 is removed, and the adhesive part 3 is firmly bonded to the surface of the second adhesive layer 6. After the adhesive part 3 is bonded, it can be rolled back and forth to make the right waterproof membrane sheet 2 and the left waterproof membrane sheet 1 firmly bonded.
[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.
[0027] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A high-efficiency interlocking waterproof membrane, comprising a left waterproof membrane sheet (1), characterized in that: The right side of the left waterproof membrane sheet (1) is provided with a right waterproof membrane sheet (2). The left end of the right waterproof membrane sheet (2) is provided with an adhesive part (3) and a fixing part (4). The right end of the left waterproof membrane sheet (1) is provided with an overlap part (5). The upper surface of the fixing part (4) is provided with a first adhesive layer (8), and the upper surface of the overlap part (5) is provided with a second adhesive layer (6).
2. The high-efficiency interlocking waterproof membrane according to claim 1, characterized in that: The right waterproof membrane sheet (2) includes a polyethylene base layer (201), a polyolefin layer (202), an ethylene propylene rubber layer (203), and a corrosion-resistant bottom layer (204). The bottom surface of the polyethylene base layer (201) is fixedly connected to the upper surface of the polyolefin layer (202).
3. The high-efficiency interlocking waterproof membrane according to claim 2, characterized in that: The bottom surface of the polyolefin layer (202) is bonded to the upper surface of the ethylene propylene rubber layer (203), and the bottom surface of the ethylene propylene rubber layer (203) is fixedly connected to the upper surface of the corrosion-resistant underlayer (204).
4. The high-efficiency interlocking waterproof membrane according to claim 1, characterized in that: A protective film (7) is bonded to the upper surface of the second adhesive layer (6), and the second adhesive layer (6) is located below the adhesive portion (3).
5. The high-efficiency interlocking waterproof membrane according to claim 1, characterized in that: The bottom surface of the overlapping part (5) is bonded to the upper surface of the fixing part (4) through the upper surface of the first adhesive layer (8).
6. The high-efficiency interlocking waterproof membrane according to claim 1, characterized in that: The left waterproof membrane sheet (1) and the right waterproof membrane sheet (2) are both made of the same material.