Multi-layer PE (polyethylene) waterproof film

Abstract

The utility model discloses a multilayer PE waterproof membrane, which comprises a wear-resistant bottom membrane for supporting and a waterproof inner membrane layer, the waterproof inner membrane layer is fixedly arranged on the upper end face of the wear-resistant bottom membrane, and a tensile membrane layer is fixedly arranged on the upper end face of the waterproof inner membrane layer. The waterproof outer film and the tensile film layer in the waterproof film are both made of tensile materials, the tensile performance of the interior and the exterior of the film body can be effectively improved, meanwhile, the waterproof inner film layer can effectively improve the overall strength of the interior of the film body, and the tearing grooves and the V-shaped openings formed in the middle and the two side portions of the connecting belt are both of a positioning fracture structure. The two groups of waterproof films can be conveniently, quickly and conveniently torn by a subsequent user, the subsequent use is facilitated, and the use convenience of the waterproof films is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE waterproof membranes, and specifically relates to a multi-layer PE waterproof membrane. Background Technique

[0002] The PE waterproof membrane, also known as the polyethylene waterproof membrane, is a high-molecular waterproof material made of polyethylene (PE) material. It has excellent waterproof performance, chemical stability and mechanical strength, so it is widely used in various waterproof projects.

[0003] For example, the utility model patent disclosed with the publication number: CN217495467U, a PE membrane that can efficiently waterproof and is easy to tear, includes a first waterproof membrane, a PE membrane and a second waterproof membrane. The first waterproof membrane and the second waterproof membrane are respectively fixedly bonded to the side end faces of the PE membrane. Tear connection membranes are evenly fixedly connected between the second waterproof membranes, and tear slots are opened at both ends of the tear connection membranes. During the use of the utility model, it is convenient to tear and disconnect at a fixed distance, and it has efficient waterproof performance during the use process.

[0004] Although the above-mentioned PE waterproof membrane has a certain waterproof function, the overall strength and tensile performance of the above-mentioned waterproof membrane are insufficient. At the same time, it is not convenient to quickly tear at the fracture, which reduces the convenience during use. Therefore, there is an urgent need for a multi-layer PE waterproof membrane to solve the above-mentioned existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-layer PE waterproof membrane to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A multi-layer PE waterproof membrane includes a wear-resistant bottom membrane for support,

[0007] A waterproof inner membrane layer, the waterproof inner membrane layer is fixedly arranged on the upper end face of the wear-resistant bottom membrane, and a tensile membrane layer is fixedly arranged on the upper end face of the waterproof inner membrane layer;

[0008] A waterproof outer membrane, the waterproof outer membrane is fixedly arranged on the upper end face of the tensile membrane layer, and protective protrusions are equidistantly arranged on the upper end face of the tensile membrane layer.

[0009] Preferably, between two adjacent groups of the waterproof outer membranes are fixedly connected through a connecting band, and tear slots for fracture are equidistantly opened on the inner end face of the connecting band.

[0010] Preferably, a transverse crack groove is formed at the center of the upper end surface of the connecting belt, and V-shaped openings are formed at the center of the front part and the center of the rear part of the connecting belt. Both the rhombus-shaped tearing groove and the triangle-shaped V-shaped opening can facilitate the fracture of the middle part of the connecting belt, facilitating subsequent tearing.

[0011] Preferably, the material of the waterproof outer membrane is PE, and the material of the tensile membrane layer is PVC. The waterproof outer membrane can effectively improve the waterproof performance outside the membrane body. At the same time, both the waterproof outer membrane and the tensile membrane layer are tensile materials, which can improve the overall tensile performance of the membrane body.

[0012] Preferably, the material of the waterproof inner membrane layer is ethylene propylene diene monomer (EPDM), which can effectively improve the tensile property and strength inside the waterproof membrane.

[0013] Preferably, the material of the connecting belt is thermoplastic polyurethane (TPU). The connecting belt can facilitate subsequent users to quickly tear two adjacent waterproof membranes, facilitating subsequent use.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. In the waterproof membrane of the present utility model, both the waterproof outer membrane and the tensile membrane layer inside are tensile materials, which can effectively improve the tensile performance inside and outside the membrane body. At the same time, the waterproof inner membrane layer can effectively improve the overall strength inside the membrane body. Moreover, the tearing grooves and V-shaped openings arranged in the middle and on both sides of the connecting belt are all positioning fracture structures, which can facilitate subsequent users to quickly and conveniently tear two waterproof membranes, facilitating subsequent use and improving the convenience of using the waterproof membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural diagram of the main body of the present utility model;

[0017] Figure 2 is a partial enlarged view of part I of the main body of the present utility model.

[0018] In the figure: 1 - waterproof outer membrane, 2 - protective protrusion, 3 - connecting belt, 4 - tearing groove, 5 - wear-resistant bottom membrane, 6 - waterproof inner membrane layer, 7 - tensile membrane layer, 8 - transverse crack groove, 9 - V-shaped opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer toFigure 1-2 , an embodiment provided by the present utility model: a multi-layer PE waterproof film, including a wear-resistant bottom film 5 for support,

[0021] a waterproof inner film layer 6, the waterproof inner film layer 6 is fixedly arranged on the upper end surface of the wear-resistant bottom film 5, and a tensile film layer 7 is fixedly arranged on the upper end surface of the waterproof inner film layer 6;

[0022] a waterproof outer film 1, the waterproof outer film 1 is fixedly arranged on the upper end surface of the tensile film layer 7, and protective protrusions 2 are equidistantly arranged on the upper end surface of the tensile film layer 7.

[0023] Between two adjacent waterproof outer films 1 are fixedly connected by a connecting belt 3, and tearing grooves 4 for fracture are equidistantly opened on the inner end surface of the connecting belt 3.

[0024] A transverse crack groove 8 is opened at the center of the upper end surface of the connecting belt 3, and V-shaped openings 9 are opened at the center of the front part and the center of the rear part of the connecting belt 3. The rhombus-shaped tearing grooves 4 and the triangular V-shaped openings 9 can both facilitate the fracture of the middle part of the connecting belt 3, facilitating subsequent tearing.

[0025] The material of the waterproof outer film 1 is PE, and the material of the tensile film layer 7 is PVC. The waterproof outer film 1 can effectively improve the waterproof performance of the outside of the film body. At the same time, both the waterproof outer film 1 and the tensile film layer 7 are tensile materials, which can improve the overall tensile performance of the film body.

[0026] The material of the waterproof inner film layer 6 is ethylene propylene diene monomer, which can effectively improve the tensile property and strength inside the waterproof film.

[0027] The material of the connecting belt 3 is TPU. The connecting belt 3 can facilitate subsequent users to quickly tear two adjacent waterproof films, facilitating subsequent use.

[0028] Working principle: Both the waterproof outer film 1 and the tensile film layer 7 inside the waterproof film are tensile materials, which can effectively improve the tensile performance inside and outside the film body. At the same time, the waterproof inner film layer 6 can effectively improve the overall strength inside the film body. And the tearing grooves 4 and the V-shaped openings 9 arranged in the middle part and both side parts of the connecting belt 3 are positioning fracture structures, which can facilitate subsequent users to quickly and conveniently tear two waterproof films, facilitating subsequent use and improving the convenience of using the waterproof film.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-layer PE waterproof film, including a wear-resistant bottom film (5) for support, characterized in that: A waterproof inner film layer (6), the waterproof inner film layer (6) is fixedly arranged on the upper end surface of the wear-resistant bottom film (5), and a tensile film layer (7) is fixedly arranged on the upper end surface of the waterproof inner film layer (6); A waterproof outer film (1), the waterproof outer film (1) is fixedly arranged on the upper end surface of the tensile film layer (7), and protective protrusions (2) are equidistantly arranged on the upper end surface of the tensile film layer (7); Between two adjacent groups of the waterproof outer films (1), they are fixedly connected by a connecting band (3), and tearing grooves (4) for fracture are equidistantly opened on the inner end surface of the connecting band (3); A transverse crack groove (8) is opened at the center of the upper end surface of the connecting band (3), and V-shaped openings (9) are opened at the center of the front part and the center of the rear part of the connecting band (3).

2. The multi-layer PE waterproof film according to claim 1, wherein: The material of the waterproof outer film (1) is PE, and the material of the tensile film layer (7) is PVC.

3. The multi-layer PE waterproof film according to claim 2, wherein: The material of the waterproof inner film layer (6) is ethylene propylene diene monomer.

4. A multi-layer PE waterproof film according to claim 3, characterized in that: The material of the connecting band (3) is TPU.

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