A composite waterproof structure for basement expansion joints
By installing a composite waterproof structure of mounting brackets and cover plates at the expansion joint, the problem of cover plates falling off during building deformation is solved, achieving effective waterproofing, reducing the entry of moisture and debris, and improving the waterproof performance of the expansion joint.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MINGSEN ARCHITECTURAL DESIGN INST CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
When the building structure deforms, the bolt-fixed cover plate is prone to cracking and falling off, allowing moisture and debris to enter the expansion joint and affecting the effectiveness of the waterproof structure.
The composite waterproof structure employs a mounting bracket and a cover plate. By setting mounting grooves and mounting brackets on both sides of the expansion joint, the cover plate is connected to the mounting bracket, and a waterproof layer is installed in between. The tightness of the cover plate is adjusted by using connecting plates and elastic elements. Combined with the design of expansion joints and drainage channels, the possibility of the cover plate detaching from the expansion joint is reduced, and the waterproof effect is further enhanced by waterproof rock wool felt layer and waterproof layer.
It effectively prevents the cover plate from detaching from the expansion joint when the building deforms, reduces the entry of moisture and debris, improves the durability and waterproofing effect of the waterproof structure, and extends the service life of the waterproof layer.
Smart Images
Figure CN224281386U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of building expansion joint construction technology, and in particular to a composite waterproof structure for basement expansion joints. Background Technology
[0002] Expansion joints are a general term for expansion joints, settlement joints, and seismic joints. Buildings often deform under the influence of external factors, leading to cracks or even damage. Expansion joints are structural joints reserved for this situation. Expansion joints are formed by the break in the wall. The expansion joints on the wall are to prevent the impact on the use and safety of the building caused by factors such as temperature changes, uneven settlement, and earthquakes.
[0003] During the design process, the structural base plate is pre-disassembled at deformation-sensitive locations. Since the expansion joint is an artificial division that should have been an integral part of the structure, the expansion joint becomes the weakest link in the waterproofing of the structure. Waterproofing is usually carried out at the expansion joint, and a cover plate is installed on the outside of the expansion joint for protection.
[0004] Regarding the aforementioned technologies, the inventors believe that when a building structure deforms, the connection between the bolted cover plate and the building structure cracks and falls off, allowing a large amount of water and debris to enter the expansion joint, thus affecting the waterproof structure within the expansion joint. Utility Model Content
[0005] The purpose of this application is to provide a composite waterproof structure for basement expansion joints, in order to improve the problem that when the building structure deforms, the bolt-fixed cover plate will deform and crack and fall off along with the building structure, allowing a large amount of water and debris to enter the expansion joint and affecting the waterproof structure in the expansion joint.
[0006] This application provides a composite waterproof structure for basement expansion joints, employing the following technical solution:
[0007] A composite waterproof structure for basement expansion joints includes basement walls and expansion joints between the walls. A waterstop is provided along the length of the expansion joint in each wall between the expansion joints. Installation grooves are provided on both sides of the expansion joints along the length of the expansion joints. A cover plate is provided on the outer side of the expansion joint along the length of the expansion joint. Installation brackets are provided on the inner sidewalls of both installation grooves along the length of the expansion joint. The side of the installation bracket away from the expansion joint contacts the cover plate, and the installation bracket extends towards the expansion joint. A connecting plate connected to the cover plate is provided on the side of the installation bracket closest to the expansion joint. A waterproof layer is provided between the installation bracket and the cover plate.
[0008] By adopting the above technical solution, the mounting frame is fixed in the mounting grooves opened on both sides of the expansion joint. The mounting frame extends towards the expansion joint, and the cover plate is placed on the outside of the expansion joint. The cover plate is connected to the connecting plate on the side of the mounting frame closest to the expansion joint. The connecting plate pulls the cover plate against the mounting frame, reducing the possibility of the cover plate detaching from the expansion joint when the building structure deforms. A waterproof layer is set between the mounting frame and the cover plate to waterproof the gap between the cover plate and the mounting frame, minimizing the possibility of the cover plate detaching from the expansion joint and allowing a large amount of water and debris to enter the expansion joint.
[0009] Optionally, the mounting bracket has a groove along its length on the side near the expansion joint, and the connecting plate has a bent plate on both sides that fits against the inner wall of the groove.
[0010] By adopting the above technical solution, the bent plates set on both sides of the connecting plate are in contact with the inner wall of the chute, so that when the connecting plate is misaligned and deformed between the walls on both sides of the expansion joint, the connecting plate can slide slightly along the length of the expansion joint with the cover plate, reducing the possibility of the connecting plate and the mounting frame misaligning and causing the cover plate to detach from the expansion joint.
[0011] Optionally, the cover plate is provided with a connecting rod that passes through the connecting plate on the side facing the connecting plate, and a nut is threadedly connected to the side of the connecting rod that passes through the connecting plate, and an elastic element is provided between the nut and the connecting plate.
[0012] By adopting the above technical solution, the connecting rod of the cover plate facing the connecting plate passes through the connecting plate and is fixed by a nut. The elastic element between the connecting plate and the nut pushes the nut away from the connecting plate, so that the connecting rod pulls the cover plate against the mounting bracket. The tightness of the cover plate can be adjusted by adjusting the position of the nut on the connecting rod.
[0013] Optionally, the connecting plate has a telescopic section arranged in a zigzag pattern near the bending plate, and a drainage groove is formed between the telescopic sections.
[0014] By adopting the above technical solution, an expansion joint is set in a zigzag pattern near the bending plate of the connecting plate. When the walls on both sides of the expansion joint expand or contract, the connecting plate adjusts its width by deforming the expansion joint, minimizing the damage to the connecting plate when the inner wall of the expansion joint deforms. A drainage groove is formed between the expansion joints, allowing water that has seeped through the waterproof layer to flow into the drainage groove and be drained away, reducing the possibility of water flowing to the position where the connecting rod penetrates the connecting plate and thus seeping through the connecting plate.
[0015] Optionally, the telescopic part is provided with a baffle that contacts the mounting frame on the side facing the wall, and the waterproof layer extends along the side wall of the mounting frame and abuts against the baffle.
[0016] By adopting the above technical solution, a baffle is integrally formed on the side of the telescopic part facing the wall. The baffle abuts against the waterproof layer on the surface of the mounting frame, reducing the possibility of water seeping into the connection between the bending plate and the sliding groove of the mounting frame when there is too much water in the drainage channel.
[0017] Optionally, a fixing plate that is fixedly connected to the wall is provided on the side of the waterstop away from the connecting plate, and a waterproof rock wool felt layer is filled between the fixing plate and the waterstop.
[0018] By adopting the above technical solution, a waterproof rock wool felt layer is filled between the fixing plate and the waterstop. The waterproof rock wool felt layer further waterproofs the expansion joint, and at the same time, it supports the waterstop, minimizing the possibility of water accumulation in the waterstop causing it to break.
[0019] Optionally, a second waterproof layer is provided on the side of the cover plate away from the wall, which is laid along the outer side of the wall, and a protective layer is provided on the outside of the second waterproof layer.
[0020] By adopting the above technical solution, the entire wall of the basement is waterproofed with the second waterproof layer, which further reduces the possibility of water seepage in the expansion joints. A protective layer is set on the outside of the second waterproof layer to protect it and extend its service life.
[0021] Optionally, an elastic isolation pad is fitted between the cover plate and the inner wall of the mounting groove, and the elastic isolation pad abuts against the waterproof layer.
[0022] By adopting the above technical solution, an elastic isolation pad is set between the cover plate and the inner wall of the mounting groove. The elastic isolation pad always abuts against the cover plate when the walls on both sides of the expansion joint deform, and waterproofing is applied to the edges of the cover plate.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. Fix the mounting bracket in the mounting grooves opened on both sides of the expansion joint. The mounting bracket extends towards the expansion joint. Place the cover plate on the outside of the expansion joint. The cover plate is connected to the connecting plate on the side of the mounting bracket closest to the expansion joint. The connecting plate pulls the cover plate against the mounting bracket to reduce the possibility of the cover plate detaching from the expansion joint when the building structure deforms. The waterproof layer between the mounting bracket and the cover plate is waterproofed to prevent the cover plate from detaching from the expansion joint and allowing a large amount of water and debris to enter the expansion joint.
[0025] 2. A connecting rod is installed on the side of the cover plate facing the connecting plate, passing through the connecting plate. The connecting rod is fixed by a nut. The elastic element between the connecting plate and the nut pushes the nut away from the connecting plate, so that the connecting rod pulls the cover plate against the mounting bracket. The tightness of the cover plate can be adjusted by adjusting the position of the nut on the connecting rod.
[0026] 3. An expansion joint is installed in a zigzag pattern near the bending plate of the connecting plate. When the walls on both sides of the expansion joint expand or contract, the connecting plate adjusts its width by deforming the expansion joint, minimizing damage to the connecting plate when the inner wall of the expansion joint deforms. A drainage channel is formed between the expansion joints, allowing water that has seeped through the waterproof layer to flow into the drainage channel and be drained away, reducing the possibility of water flowing to the point where the connecting rod penetrates the connecting plate and thus seeping through the connecting plate. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of a composite waterproof structure for basement expansion joints;
[0028] Figure 2 This is a partial sectional view of the composite waterproof structure of the basement expansion joint.
[0029] In the diagram, 1. Wall; 11. Mounting groove; 12. Waterproof layer two; 13. Protective layer; 2. Expansion joint; 3. Cover plate; 31. Connecting rod; 32. Nut; 33. Elastic component; 34. Elastic isolation pad; 4. Mounting bracket; 41. Slide groove; 5. Waterproof layer one; 6. Connecting plate; 61. Bending plate one; 62. Expansion joint; 621. Drainage groove; 63. Baffle; 7. Waterstop; 8. Fixing plate; 81. Waterproof rock wool felt layer. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.
[0031] A composite waterproof structure for basement expansion joints, referring to Figure 1This includes the basement wall 1 and the expansion joint 2 between the walls 1. A waterstop 7 is pre-embedded in the wall 1 between the expansion joint 2 along the length of the expansion joint 2. Installation grooves 11 are opened in the walls 1 on both sides of the expansion joint 2 along the length of the expansion joint 2. A cover plate 3 is installed on the outside of the expansion joint 2 along the length of the expansion joint 2. Installation brackets 4 are fixed to the inner side walls of the two installation grooves 11 along the length of the expansion joint 2 with waterstop bolts. The installation brackets 4 are made of aluminum alloy. The side of the installation bracket 4 away from the expansion joint 2 contacts the cover plate 3. The installation bracket 4 extends towards the expansion joint 2. The mounting frame 4 has a connecting plate 6 on the side near the expansion joint 2, which is connected to the cover plate 3. Both the connecting plate 6 and the cover plate 3 are made of stainless steel. The connecting plate 6 pulls the cover plate 3 against the mounting frame 4, reducing the possibility of the cover plate 3 detaching from the expansion joint 2 when the building structure deforms. A waterproof layer 5 is adhered between the mounting frame 4 and the cover plate 3. The waterproof layer 5 is made of flexible waterproof membrane laid on the surface of the mounting frame 4 to waterproof the gap between the cover plate 3 and the mounting frame 4, so as to prevent the cover plate 3 from detaching from the expansion joint 2 and allowing a large amount of water and debris to enter the expansion joint 2.
[0032] Reference Figure 1 A fixing plate 8 is provided on the side of the waterstop 7 away from the connecting plate 6, which is fixedly connected to the wall 1 by waterstop bolts. A waterproof rock wool felt layer 81 is filled between the fixing plate 8 and the waterstop 7. The waterproof rock wool felt layer 81 provides further waterproofing to the expansion joint 2 and supports the waterstop 7 to minimize the possibility of water accumulation in the waterstop 7 causing it to break. A second waterproof layer 12 is provided on the side of the cover plate 3 away from the wall 1, which is laid along the outer wall of the wall 1. The second waterproof layer 12 is also made of flexible waterproof membrane. A protective layer 13 is provided on the outside of the second waterproof layer 12. The protective layer 13 is made of fine stone concrete and protects the second waterproof layer 12, increasing its service life.
[0033] Reference Figure 1 and Figure 2 An elastic isolation pad 34 is installed between the cover plate 3 and the inner wall of the mounting groove 11. The elastic isolation pad 34 is a rubber waterproof pad. The elastic isolation pad 34 abuts against the waterproof layer 5. The elastic isolation pad 34 always abuts against the cover plate 3 when the walls 1 on both sides of the expansion joint 2 deforms. Waterproof treatment is applied to the edges of the cover plate 3. A sliding groove 41 is opened along the length of the mounting frame 4 on the side of the mounting frame 4 near the expansion joint 2. The connecting plate 6 has integrally formed bent plates 61 on both sides that fit against the inner wall of the sliding groove 41. The bent plates 61 fit against the inner wall of the sliding groove 41 so that when the connecting plate 6 is misaligned and deformed between the walls 1 on both sides of the expansion joint 2, the connecting plate 6 can slide slightly along the length of the expansion joint 2 with the cover plate 3.
[0034] Reference Figure 1 and Figure 2 A connecting rod 31 is welded to the side of the cover plate 3 facing the connecting plate 6, passing through the connecting plate 6. A nut 32 is threaded to the side of the connecting rod 31 that passes through the connecting plate 6. An elastic element 33 is installed between the nut 32 and the connecting plate 6. The elastic element 33 is a thrust spring. The elastic element 33 pushes the nut 32 away from the connecting plate 6, so that the connecting rod 31 pulls the cover plate 3 against the mounting bracket 4. The tightness of the cover plate 3 can be adjusted by adjusting the position of the nut 32 on the connecting rod 31.
[0035] Reference Figure 1 and Figure 2 An integrally formed expansion joint 62, shaped like a zigzag line, is provided on the connecting plate 6 near the bending plate 61. When the walls 1 on both sides of the expansion joint 2 expand or contract, the connecting plate 6 adjusts its width by deforming the expansion joint 62, minimizing damage to the connecting plate 6 when the inner wall of the expansion joint 2 deforms. A drainage groove 621 is formed between the expansion joints 62, allowing water that has seeped through the waterproof layer 5 to flow into the drainage groove 621 and be drained away, reducing the possibility of water flowing to the point where the connecting rod 31 passes through the connecting plate 6 and thus seeping through the connecting plate 6. A baffle 63, which contacts the mounting frame 4, is integrally formed on the side of the expansion joint 62 facing the wall 1. The waterproof layer 5 extends along the side wall of the mounting frame 4 and abuts against the baffle 63, reducing the possibility of water seeping into the connection between the bending plate 61 and the sliding groove 41 of the mounting frame 4 when there is too much water in the drainage groove 621.
[0036] The implementation principle of this application embodiment is as follows:
[0037] In actual operation, the cover plate 3 is set on the outside of the expansion joint 2 and connected to the connecting plate 6 by the connecting rod 31 and nut 32. The bent plates 61 on both sides of the connecting plate 6 are in contact with the inner wall of the sliding groove 41 of the mounting frame 4. When the connecting plate 6 is misaligned between the walls 1 on both sides of the expansion joint 2, the connecting plate 6 can slide slightly along the length of the expansion joint 2 with the cover plate 3, reducing the possibility of the connecting plate 6 and the mounting frame 4 misaligning and causing the cover plate 3 to detach from the expansion joint 2. Waterproof rock wool is filled between the fixing plate 8 and the waterstop 7. The felt layer 81 further waterproofs the expansion joint 2 with waterproof rock wool felt layer 81, and at the same time, the waterproof rock wool felt layer 81 supports the waterstop 7; the elastic element 33 pushes the nut 32, so that the connecting rod 31 pulls the cover plate 3 against the mounting frame 4, so that the protective layer 13 on the mounting frame 4 is in contact with the side wall of the cover plate 3, and the gap between the cover plate 3 and the mounting frame 4 is waterproofed, so as to avoid the cover plate 3 from detaching from the expansion joint 2 and allowing a large amount of water and debris to enter the expansion joint 2, which would affect the waterproof structure in the expansion joint 2.
[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A composite waterproof structure for basement expansion joints, comprising basement walls (1) and expansion joints (2) formed between the walls (1), characterized in that: A waterstop (7) is provided on the wall (1) between the expansion joints (2) along the length of the expansion joints (2). The walls (1) on both sides of the expansion joints (2) are provided with installation grooves (11) along the length of the expansion joints (2). A cover plate (3) is provided on the outer side of the expansion joints (2) along the length of the expansion joints (2). An installation frame (4) is provided on the inner side wall of the two installation grooves (11) along the length of the expansion joints (2). The side of the installation frame (4) away from the expansion joints (2) is in contact with the cover plate (3). The installation frame (4) extends towards the expansion joints (2). A connecting plate (6) connected to the cover plate (3) is provided on the side of the installation frame (4) close to the expansion joints (2). A waterproof layer (5) is provided between the installation frame (4) and the cover plate (3).
2. The composite waterproof structure for basement expansion joints according to claim 1, characterized in that: The mounting bracket (4) has a groove (41) along the length of the mounting bracket (4) on the side near the expansion joint (2), and the connecting plate (6) has a bent plate (61) on both sides that fits against the inner wall of the groove (41).
3. The composite waterproof structure for basement expansion joints according to claim 2, characterized in that: The cover plate (3) is provided with a connecting rod (31) that passes through the connecting plate (6) on the side facing the connecting plate (6). The connecting rod (31) is threaded with a nut (32) on the side that passes through the connecting plate (6). An elastic element (33) is provided between the nut (32) and the connecting plate (6).
4. The composite waterproof structure for basement expansion joints according to claim 3, characterized in that: The connecting plate (6) has a telescopic part (62) arranged in a zigzag shape near the bending plate (61), and a drainage groove (621) is formed between the telescopic parts (62).
5. The composite waterproof structure for basement expansion joints according to claim 4, characterized in that: The telescopic part (62) is provided with a baffle (63) on the side facing the wall (1) that contacts the mounting frame (4), and the waterproof layer (5) extends along the side wall of the mounting frame (4) and abuts against the baffle (63).
6. A composite waterproof structure for basement expansion joints according to claim 5, characterized in that: The waterstop (7) is provided with a fixing plate (8) fixedly connected to the wall (1) on the side away from the connecting plate (6), and a waterproof rock wool felt layer (81) is filled between the fixing plate (8) and the waterstop (7).
7. A composite waterproof structure for basement expansion joints according to claim 6, characterized in that: The cover plate (3) is provided with a second waterproof layer (12) laid along the outer side of the wall (1) on the side away from the wall (1), and a protective layer (13) is provided on the outside of the second waterproof layer (12).
8. The composite waterproof structure for basement expansion joints according to claim 7, characterized in that: An elastic isolation pad (34) is fitted between the cover plate (3) and the inner wall of the mounting groove (11), and the elastic isolation pad (34) abuts against the waterproof layer (5).