Waterproof coiled material lap joint structure
By designing the structure of connecting blocks, clamps and docking grooves on the waterproof roll material and injecting waterproof sealant, the problems of unstable quality and poor sealing of the existing waterproof roll material overlapping methods are solved, and higher overlapping quality and anti-seepage effect are achieved.
Patent Information
- Application Number
- CN202421834048.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing waterproof coil lap method relies on hot melt welding, poor quality stability, and complex welding process, which relies on workers' operating technology, resulting in poor anti-seepage effect after partial lap.
A waterproof coil lap structure is designed, by fixing the connecting block and the clamp on the inner side of the coil, connecting the clamp slot and the docking slot structure for connection, and fixing it by fastening bolts, and finally injecting waterproof sealant at the connection to improve sealing.
This lap structure simplifies the operation steps, improves the stability and sealing of the connection, ensures the quality of the lap, and significantly improves the anti-seepage effect.
Smart Images

Figure CN222862554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof coiled materials, in particular to a waterproof coiled material overlapping structure. Background Art
[0002] Waterproof membrane is mainly used for building walls, roofs, tunnels, roads, landfills, etc. It is a flexible building material product that can be rolled into a roll to resist the seepage of external rainwater and groundwater. As a leak-free connection between the project foundation and the building, it is the first barrier to waterproofing the entire project and plays a vital role in the entire project. During the laying process of waterproof membrane, adjacent waterproof membranes need to be overlapped.
[0003] At present, the commonly used overlapping method is to overlap the edge of a piece of waterproof membrane onto the edge of an adjacent waterproof membrane, and then weld them together by hot melt. This method requires measuring and marking the welding area in advance, and then welding. During the welding process, the waterproof membrane needs to be pressed continuously with a roller to make it fit better. The quality of welding is extremely dependent on the quality of hot melt and the operating skills of the workers. The quality of the overlap is not stable enough, which leads to poor anti-seepage effect of some waterproof membranes after overlap. Therefore, a waterproof membrane overlap structure is proposed to solve the above problems. Utility Model Content
[0004] In order to solve the above technical problems, a waterproof membrane overlap structure is provided. The technical solution solves the problem that the currently commonly used overlap method proposed in the above background technology is to overlap the edge of a piece of waterproof membrane on the edge of an adjacent waterproof membrane, and then weld them together by hot melt. This method requires measuring and marking the welding area in advance, and then welding. During the welding process, the waterproof membrane needs to be continuously pressed with a roller to make it fit better. The quality of welding is extremely dependent on the quality of hot melt and the operating skills of the workers. The quality of the overlap is not stable enough, which leads to the problem of poor waterproofing effect after some waterproof membranes are overlapped.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A waterproof membrane overlap structure comprises a first waterproof membrane and a second waterproof membrane, wherein the inner sides of the first waterproof membrane and the second waterproof membrane are fixedly connected with a connecting block, a card slot is penetrated through the front side of the connecting block, a card block is fixedly connected with the inner side of the connecting block, and the card block is inserted into the inside of the card slot, a second docking groove is provided at the lower ends of the first waterproof membrane and the second waterproof membrane, a bottom plate is movably connected inside the second docking groove, side plates are fixedly connected at the front and rear sides of the upper end of the bottom plate, the right side and the left side of the side plate are respectively abutted against the inner sides of the first waterproof membrane and the second waterproof membrane, first threaded holes are penetrated through the four corners of the lower end of the bottom plate, a second threaded hole is provided at the upper end of the second docking groove and at the corresponding position of the first threaded hole, and the first threaded hole and the second threaded hole are internally threadedly connected with a first fastening bolt.
[0007] Preferably, the block is L-shaped.
[0008] Preferably, the upper ends of the first waterproof coiled material and the second waterproof coiled material are both provided with a first docking groove, the interior of the first docking groove is movably connected with a cover plate, and the lower end of the cover plate abuts against the upper end of the side plate.
[0009] Preferably, third threaded holes are formed through the four corners of the upper end of the cover plate, a fourth threaded hole is formed at the bottom end of the first docking groove and at a position corresponding to the third threaded hole, and the internal threads of the third threaded hole and the fourth threaded hole are connected with a second fastening bolt.
[0010] Preferably, a glue injection hole is provided through the middle of the upper end of the cover plate.
[0011] Preferably, the glue injection hole is in the shape of a funnel which is wide at the top and narrow at the bottom.
[0012] Preferably, a glue leakage hole is provided through the upper end of the connection block at a position corresponding to the glue injection hole.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The present invention proposes a waterproof membrane overlap structure, wherein the two waterproof membranes can be connected by inserting the clamping blocks of the first waterproof membrane and the second waterproof membrane into the clamping grooves of the second waterproof membrane and the first waterproof membrane respectively; after the connection, the bottom plate and the top plate are respectively installed in the second docking groove and the first docking groove and fixed by the first fastening bolt and the second fastening bolt; waterproof sealant can be injected into the connection through the glue injection port on the cover plate; the waterproof sealant can fully fill the gap in the connection through the glue leakage hole; the overall overlap difficulty is low; at the same time, the connection is fixed more firmly and has higher sealing performance, which can ensure the quality of the overlap; the injection of waterproof sealant also further improves the anti-seepage effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a structural schematic diagram of the first docking groove in the utility model;
[0017] Figure 3 It is a structural schematic diagram of the connecting block in the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the bottom plate of the utility model;
[0019] Figure 5 It is a structural schematic diagram of the cover plate in the utility model.
[0020] The numbers in the figure are:
[0021] 1. First waterproofing membrane; 2. Second waterproofing membrane; 3. Connecting block; 4. Slot; 5. Block; 6. First docking groove; 7. Second docking groove; 8. Bottom plate; 9. Side plate; 10. First threaded hole; 11. Second threaded hole; 12. First fastening bolt; 13. Cover plate; 14. Third threaded hole; 15. Fourth threaded hole; 16. Second fastening bolt; 17. Glue injection hole; 18. Glue leakage hole. DETAILED DESCRIPTION
[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.
[0023] Reference Figure 1 , Figure 2 and Figure 3 As shown, a waterproof membrane overlap structure includes a first waterproof membrane 1 and a second waterproof membrane 2, the inner sides of the first waterproof membrane 1 and the second waterproof membrane 2 are fixedly connected with a connecting block 3, the front side of the connecting block 3 is penetrated with a card slot 4, the inner side of the connecting block 3 is fixedly connected with a card block 5, and the card block 5 is inserted into the inside of the card slot 4.
[0024] Furthermore, the two waterproof rolls can be connected by inserting the clamping blocks 5 of the first waterproof roll 1 and the second waterproof roll 2 into the clamping grooves 4 of the second waterproof roll 2 and the first waterproof roll 1 respectively.
[0025] Furthermore, the shape of the card block 5 is L-shaped. The design of the L-shaped card block 5 can ensure that the card block 5 is not easy to fall off in the card slot 4, making the connection more stable.
[0026] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the lower ends of the first waterproof membrane 1 and the second waterproof membrane 2 are each provided with a second docking groove 7, the interior of the second docking groove 7 is movably connected with a bottom plate 8, the front and rear sides of the upper end of the bottom plate 8 are fixedly connected with side plates 9, the right and left sides of the side plates 9 are respectively abutted against the inner sides of the first waterproof membrane 1 and the second waterproof membrane 2, the lower end of the bottom plate 8 is provided with a first threaded hole 10, the upper end of the second docking groove 7 and the corresponding position of the first threaded hole 10 are provided with a second threaded hole 11, and the first threaded hole 10 and the second threaded hole 11 are internally threadedly connected with a first fastening bolt 12.
[0027] Furthermore, a first docking groove 6 is formed at the upper ends of the first waterproof membrane 1 and the second waterproof membrane 2 , and a cover plate 13 is movably connected inside the first docking groove 6 , and the lower end of the cover plate 13 abuts against the upper end of the side plate 9 .
[0028] Furthermore, third threaded holes 14 are formed through the four corners of the upper end of the cover plate 13, and fourth threaded holes 15 are formed at the bottom end of the first docking groove 6 and at positions corresponding to the third threaded holes 14. The internal threads of the third threaded holes 14 and the fourth threaded holes 15 are connected with second fastening bolts 16.
[0029] Furthermore, the bottom plate 8 and the side plate 9 can be installed in the second docking groove 7 through the first threaded hole 10, the second threaded hole 11 and the first fastening bolt 12, and the cover plate 13 can be installed in the first docking groove 6 through the third threaded hole 14, the fourth threaded hole 15 and the second fastening bolt 16. The connection can be reinforced by the bottom plate 8, the side plate 9 and the cover plate 13, and a sealed cavity can be formed between the first waterproof membrane 1 and the second waterproof membrane 2.
[0030] Furthermore, a glue injection hole 17 is formed through the middle of the upper end of the cover plate 13 , and waterproof sealant can be injected into the sealing cavity through the glue injection hole 17 , thereby ensuring the sealing effect and waterproof performance of the connection.
[0031] Furthermore, the glue injection hole 17 is in a funnel shape that is wide at the top and narrow at the bottom. The funnel-shaped glue injection hole 17 facilitates the injection of the waterproof sealant.
[0032] Furthermore, a glue leakage hole 18 is formed through the upper end of the connecting block 3 at a position corresponding to the glue injection hole 17, and the waterproof sealant can penetrate into the bottom end of the sealing cavity through the glue leakage hole 18, thereby fully filling the gap in the sealing cavity and further improving the anti-seepage effect.
[0033] Working principle: When in use, the blocks 5 of the first waterproof membrane 1 and the second waterproof membrane 2 are respectively inserted into the slots 4 of the second waterproof membrane 2 and the first waterproof membrane 1, so that the two waterproof membranes are connected together, and then the bottom plate 8 and the side plate 9 are installed in the second docking groove 7 through the first threaded hole 10, the second threaded hole 11 and the first fastening bolt 12, and then the cover plate 13 can be installed in the first docking groove 6 through the third threaded hole 14, the fourth threaded hole 15 and the second fastening bolt 16. A sealed cavity is formed between the bottom plate 8, the side plate 9 and the cover plate 13 and the first waterproof membrane 1 and the second waterproof membrane 2. Waterproof sealant can be injected into the sealed cavity through the glue injection hole 17 at the upper end of the cover plate 13. The waterproof sealant can penetrate into the bottom end of the sealed cavity through the glue leakage hole 18 on the block 5, and then fill the gap in the sealed cavity, thereby improving the anti-seepage effect of the waterproof membrane connection.
[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A waterproof roll material overlap structure, characterized in that: The invention comprises a first waterproof coiled material (1) and a second waterproof coiled material (2), wherein the inner sides of the first waterproof coiled material (1) and the second waterproof coiled material (2) are fixedly connected with a connecting block (3), a card slot (4) is provided through the front side of the connecting block (3), a card block (5) is fixedly connected with the inner side of the connecting block (3), the card block (5) is inserted into the inside of the card slot (4), the lower ends of the first waterproof coiled material (1) and the second waterproof coiled material (2) are provided with a second docking groove (7), and the inside of the second docking groove (7) is movably connected with a bottom plate ( 8), the front and rear sides of the upper end of the bottom plate (8) are fixedly connected with side plates (9), the right side and the left side of the side plate (9) are respectively in contact with the inner sides of the first waterproof coiled material (1) and the second waterproof coiled material (2), the four corners of the lower end of the bottom plate (8) are penetrated with first threaded holes (10), the upper end of the second docking groove (7) is provided with a second threaded hole (11) at a position corresponding to the first threaded hole (10), and the internal threads of the first threaded hole (10) and the second threaded hole (11) are connected with first fastening bolts (12).
2. The waterproof roll material overlap structure according to claim 1, characterized in that: The shape of the clamping block (5) is L-shaped.
3. The waterproof roll material overlap structure according to claim 1, characterized in that: The upper ends of the first waterproof coiled material (1) and the second waterproof coiled material (2) are both provided with a first docking groove (6), the interior of the first docking groove (6) is movably connected with a cover plate (13), and the lower end of the cover plate (13) is in contact with the upper end of the side plate (9).
4. The waterproof roll material overlap structure according to claim 3, characterized in that: The cover plate (13) is provided with third threaded holes (14) at four corners of the upper end, a fourth threaded hole (15) is provided at the bottom end of the first docking groove (6) and at a position corresponding to the third threaded hole (14), and the inner threads of the third threaded hole (14) and the fourth threaded hole (15) are connected with a second fastening bolt (16).
5. The waterproof roll material overlap structure according to claim 3, characterized in that: A glue injection hole (17) is provided through the middle of the upper end of the cover plate (13).
6. The waterproof roll material overlap structure according to claim 5, characterized in that: The glue injection hole (17) is in the shape of a funnel which is wide at the top and narrow at the bottom.
7. The waterproof roll material overlap structure according to claim 1, characterized in that: A glue leakage hole (18) is formed through the upper end of the connection block (3) at a position corresponding to the glue injection hole (17).