EVA (Ethylene Vinyl Acetate) waterproof coiled material

Abstract

The utility model relates to the technical field of waterproof coiled materials, and discloses an EVA waterproof coiled material which comprises a first tire base cloth and a second tire base cloth, positioning grooves are formed in the two sides of the first tire base cloth, guide strips are arranged in the positioning grooves, and the first tire base cloth is bonded with the guide strips; each positioning groove is internally matched with second tire base cloth, a guide groove matched with the guide strip is formed in the bottom of one side of the second tire base cloth, and the cross section of the second tire base cloth is Z-shaped; the arrangement of the guide strips and the guide grooves can play a guiding role, so that the first tire base cloth and the second tire base cloth are accurately clamped together, the laying position is prevented from deviating when the waterproof coiled material is laid, meanwhile, the joints of the first tire base cloth and the second tire base cloth can be located on the same horizontal plane, and the waterproof coiled material is not prone to falling off. The situation that covering bulges are formed at the laid edges of the first tire base cloth and the second tire base cloth, and the bulge positions are prone to being damaged under the action of external force is prevented.

Description

Technical Field

[0001] The utility model relates to the field of waterproof coiled materials, in particular to an EVA waterproof coiled material. Background Art

[0002] EVA waterproof membrane is a new type of polymer composite waterproof membrane, made of high-quality ethylene-vinyl acetate copolymer as the main material, with the addition of fiber, modifier, stabilizer, anti-aging agent, antioxidant and fungicide and other auxiliary materials, and processed in one step through an automated production line using a calendaring method; EVA waterproof membrane has excellent waterproof performance, aging resistance, corrosion resistance, low temperature resistance and good processing performance, and can be widely used in waterproof projects in the fields of construction, transportation, water conservancy, etc.

[0003] Chinese utility model patent CN214774372U discloses an EVA waterproof roll, including a roll sheet, which includes a roll body, a groove is provided on the upper surface of the rear end of the roll body, and a bonding groove is provided on the lower surface of the front end of the roll body. The grooves and bonding grooves of any two identical roll bodies are pasted to each other. The utility model provides a roll sheet with a multi-layer composite, and the grooves and bonding grooves provided at both ends of the roll sheet can allow any two roll sheets in the same direction to be bonded to each other through the grooves and bonding grooves when in use. The meshing strips and guide grooves are also used to facilitate guiding and pasting during construction, ensuring that the construction process is fast and convenient. The self-adhesive connecting layer and the adhesive layer ensure the adhesion effect between different rolls and the adhesion effect to the construction surface, effectively solving the problems of uneven construction surface and poor waterproofing effect caused by the overlapping construction method used in the existing waterproof roll construction.

[0004] In the above-mentioned comparative document, the provision of engaging strips and guide grooves solves the problem of uneven construction surface during the overlapping construction of existing waterproof membranes. However, in actual use, the overlapping parts of two adjacent waterproof membranes will form a bulge, and the overlapping bulges of the two waterproof membranes are prone to deformation or even damage under the action of external forces.

[0005] Therefore, it is necessary to provide an EVA waterproof membrane to solve the above technical problems. Utility Model Content

[0006] The purpose of the present utility model is to provide an EVA waterproof membrane to solve the problems in the prior art proposed in the above-mentioned background technology, that is, the overlapping parts of two adjacent waterproof membranes will form a bulge, and the overlapping bulges of the two waterproof membranes are easily deformed or even damaged under the action of external forces.

[0007] Based on the above ideas, the utility model provides the following technical solution: comprising a first tire base fabric and a second tire base fabric, wherein positioning grooves are formed on both sides of the first tire base fabric, guide strips are provided in the positioning grooves, and the first tire base fabric and the guide strips are bonded;

[0008] A second tire base cloth is adapted for each of the positioning grooves, and a guide groove adapted for the guide strip is provided at the bottom of one side of the second tire base cloth. The cross-sectional shape of the second tire base cloth is set to be Z-shaped, and a groove is formed on the other side of the second tire base cloth. The number of the guide strips is set to be multiple, and the guide strips are arranged in the grooves and bonded to the second tire base cloth.

[0009] As a further solution of the present invention: a waterproof protective layer is adhered to the top of the first tire base cloth and the second tire base cloth through a second adhesive layer.

[0010] As a further solution of the present invention: a tearable protective film is adhered to the bottom of the first tire base cloth and the second tire base cloth through a first adhesive layer.

[0011] As a further solution of the present invention: first protective pads adapted thereto are provided in the positioning grooves on both sides of the first tire base cloth, and the upper surface of the first protective pad is level with the upper surface of the waterproof protective layer.

[0012] As a further solution of the present invention: the cross-sectional shape of the first tire base cloth is set to be T-shaped.

[0013] As a further solution of the present invention: second protective pads adapted to the second tire base cloth are provided on both sides thereof, and the height of the second protective pads should be level with the waterproof coiled material.

[0014] As a further solution of the present invention: a third adhesive layer is provided in both the groove and the positioning groove.

[0015] Compared with the prior art, the beneficial effect of the present invention is that the setting of the guide strips and the guide grooves can play a guiding role, so that the first base cloth and the second base cloth are accurately snapped together, preventing the laying position from shifting when laying the waterproof roll material. At the same time, the connection between the first base cloth and the second base cloth can be on the same horizontal plane, preventing the formation of covering bulges at the edges of the first base cloth and the second base cloth, which are easily damaged by external forces.

[0016] Compared with the prior art, the beneficial effect of the present invention is that the provision of the first protective pad can prevent the waterproof roll from being placed vertically during storage in order to save space, causing curling on both sides of the first base cloth, and at the same time can prevent dust from entering the third adhesive layer and affecting the quality of the waterproof roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the waterproof protective layer of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the tearable protective film of the utility model.

[0021] In the figure: 1. First base fabric; 2. Second base fabric; 3. First adhesive layer; 4. Tearable protective film; 5. Second adhesive layer; 6. Waterproof protective layer; 7. Positioning groove; 8. Guide strip; 9. First protective pad; 10. Guide groove. DETAILED DESCRIPTION

[0022] like Figures 1 to 3 As shown, an EVA waterproof membrane comprises a first tire base cloth 1 and a second tire base cloth 2. Positioning grooves 7 are formed on both sides of the first tire base cloth 1, and guide strips 8 are provided in the positioning grooves 7. The first tire base cloth 1 and the guide strips 8 are bonded together; each positioning groove 7 is fitted with a second tire base cloth 2, and a guide groove 10 adapted to the guide strip 8 is provided at the bottom of one side of the second tire base cloth 2. The cross-sectional shape of the second tire base cloth 2 is set to be Z-shaped, and a groove is formed on the other side of the second tire base cloth 2. The number of guide strips 8 is set to be multiple, and the guide strips 8 are arranged in the groove and bonded to the second tire base cloth 2.

[0023] The first protective pads 9 adapted to the first tire base cloth 1 are provided in the positioning grooves 7 on both sides thereof, and the upper surface of the first protective pads 9 is level with the upper surface of the waterproof protective layer 6, and the cross-sectional shape of the first tire base cloth 1 is set to be T-shaped; the second tire base cloth 2 is provided with second protective pads adapted to the second tire base cloth 2 on both sides thereof, and the height of the second protective pads should be level with the waterproof roll material.

[0024] The top of the first base fabric 1 and the second base fabric 2 is adhered with a waterproof protective layer 6 through a second adhesive layer 5; in the present invention, the second adhesive layer 5, the waterproof protective layer 6, and the tearable protective film 4 used are all commonly used materials for waterproof rolls in the prior art, and the bottom of the first base fabric 1 and the second base fabric 2 is adhered with a tearable protective film 4 through a first adhesive layer 3.

[0025] During the specific operation, the first protective pad 9 located on one side of the first tire base cloth 1 is torn off. The setting of the first protective pad 9 can prevent the waterproof roll from forming curling edges on both sides of the first tire base cloth 1 when the waterproof roll is placed vertically to save space during storage. At the same time, it can prevent dust from entering the third adhesive layer. At the same time, the tearable protective film 4 located under the first tire base cloth 1 is torn off. The tearable protective film 4 can prevent dust from entering the first adhesive layer 3, causing the viscosity of the first adhesive layer 3 to decrease and affecting the use quality of the waterproof roll. Finally, the first tire base cloth 1 is laid at the position where waterproofing is required;

[0026] When the first tire base cloth 1 is laid, the second protective pad and the second adhesive layer 5 on the second tire base cloth 2 can be torn off. The effect of the second protective pad and the first protective pad 9 here is the same. The guide groove 10 is inserted into the guide strip 8 on one side of the first tire base cloth 1. Since the groove, the guide groove 10 and the positioning groove 7 are all provided with a third adhesive layer, adhesion can be formed when the guide groove 10 is inserted into the guide strip 8. At the same time, the setting of the guide strip 8 and the guide groove 10 can play a guiding role, so that the first tire base cloth 1 and the second tire base cloth 2 are accurately snapped together to prevent the laying position from shifting when laying the waterproof roll material. At the same time, the connection between the first tire base cloth 1 and the second tire base cloth 2 can be on the same horizontal plane, preventing the formation of covering bulges at the edges of the first tire base cloth 1 and the second tire base cloth 2, which are easily damaged under the action of external force.

Claims

1. An EVA waterproof coiled material, comprising a first base fabric (1) and a second base fabric (2), characterized in that: Positioning grooves (7) are formed on both sides of the first tire base fabric (1), guide strips (8) are arranged in the positioning grooves (7), and the first tire base fabric (1) and the guide strips (8) are bonded; A second tire base cloth (2) is fitted in each positioning groove (7), and a guide groove (10) adapted to the guide strip (8) is provided at the bottom of one side of the second tire base cloth (2). The cross-sectional shape of the second tire base cloth (2) is set to be Z-shaped, and a groove is formed on the other side of the second tire base cloth (2). The number of the guide strips (8) is set to be multiple, and the guide strips (8) are arranged in the groove and bonded to the second tire base cloth (2).

2. The EVA waterproof coiled material according to claim 1, characterized in that: A waterproof protective layer (6) is adhered to the top of the first tire base cloth (1) and the second tire base cloth (2) via a second adhesive layer (5).

3. The EVA waterproof coiled material according to claim 1, characterized in that: A tearable protective film (4) is adhered to the bottom of the first tire base cloth (1) and the second tire base cloth (2) via a first adhesive layer (3).

4. The EVA waterproof coiled material according to claim 2, characterized in that: First protective pads (9) adapted thereto are arranged in the positioning grooves (7) on both sides of the first tire base cloth (1), and the upper surface of the first protective pad (9) is level with the upper surface of the waterproof protective layer (6).

5. The EVA waterproof coiled material according to claim 1, characterized in that: The cross-sectional shape of the first tire base cloth (1) is set to be T-shaped.

6. The EVA waterproof coiled material according to claim 1, characterized in that: Second protective pads matching the second tire base fabric (2) are arranged on both sides thereof, and the height of the second protective pads should be level with the waterproof coiled material.

7. The EVA waterproof coiled material according to claim 1, characterized in that: A third adhesive layer is provided in both the groove and the positioning groove (7).

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