Drainage device installed in deformation joint

By installing a drainage device inside the expansion joint and using a cover plate connected to the sliding rod and rail to maintain a tight seal, combined with drainage ditches and downpipes, the problem of water seepage and leakage in the expansion joint was solved, achieving a win-win situation for construction efficiency and environmental protection.

CN223482026UActive Publication Date: 2025-10-28ZHEJIANG HELI CONSTR ENG CO LTD
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Patent Information

Application Number
CN202422672499.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-10-28
Estimated Expiration
2034-11-01

AI Technical Summary

Technical Problem

In the existing technology, the problem of water seepage and leakage caused by the non-tight metal cover plate of the expansion joint, especially during the rainy season, is that rainwater seeps into the interior of the expansion joint, causing pollution and damage to the corridor space.

Method used

Design a drainage device to be installed in an expansion joint, including a drainage ditch, a base, a sliding rod, and a cover plate with folded edges. The connection between the sliding rod and the slide rail ensures that the cover plate keeps a tight cover when the width of the expansion joint changes. Combined with the drainage ditch and downpipe, rainwater can be effectively discharged.

Benefits of technology

It effectively solves the problem of water seepage and leakage in expansion joints, reduces the need for repairs to the ceiling and suspended ceiling, saves project costs, shortens construction time, and promotes green construction and environmental protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drainage device installed in a deformation joint, and belongs to the field of deformation joint drainage. The drainage device is embedded in the deformation joint and comprises a drainage ditch and bases, the long edge of the drainage ditch horizontally extends outwards to form two wings, the two wings of the drainage ditch are half-surrounded by the pair of bases, and the two wings of the drainage ditch and the bases are fixedly connected with the side wall of the deformation joint. The upper part of the base is connected with a cover plate with a folded edge in a sliding manner, and the cover plate with the folded edge completely covers the two sides of the deformation joint; the lower bottom surface of the drainage ditch is fixedly connected with a water falling pipe communicated with the interior; a downpipe is embedded in the deformation joint, and the downpipe is hung and embedded in the downpipe. When the side wall of the deformation joint falls or is abraded, the cover plate with the folded edge and the sliding rod move together under the action of the base, so that the cover plate with the folded edge can still tightly cover the two sides of the deformation joint, and then the deformation joint is not prone to water seepage or water leakage.
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Description

Technical Field

[0001] This utility model relates to the field of expansion joint drainage, and more specifically, to a drainage device installed in an expansion joint. Background Technology

[0002] Connecting corridors are prevalent in campus cultural development, and their environmental impact is undeniable. We frequently see connecting corridors in middle school campuses. However, most connecting corridors are open or semi-open. During the rainy season, rainwater can seep into the expansion joints due to inadequate sealing of the metal expansion joint covers. Over time, the waterstops cannot effectively drain the accumulated water, easily causing water seepage and leakage, which can contaminate the ceiling and cause damage.

[0003] To address the aforementioned issues, Chinese Patent No. CN218541009U, published on November 21, 2022, discloses a novel waterproof structure for earthquake-resistant expansion joints. This structure protects the expansion joint of the connecting corridor by covering it with a first steel plate layer. However, this first steel plate layer is fixed to the foundation surface of the connecting corridor with expansion bolts. When the connecting corridor experiences a slight collapse, the first steel plate layer may not be airtight, allowing rainwater to seep into the expansion joint. Over time, the rainwater can easily corrode the expansion joint, resulting in water seepage and leakage.

[0004] To address the aforementioned problems, this utility model provides a drainage device installed within an expansion joint. This structure can solve the problem of water seepage and leakage in the expansion joint caused by the non-tight metal expansion joint cover. Utility Model Content

[0005] 1. The problem to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a drainage device installed in the expansion joint. This structure can not only solve the problem of water seepage and leakage in the expansion joint caused by the non-tight metal cover plate of the expansion joint.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A drainage device installed within an expansion joint, the drainage device being nested within the expansion joint, the drainage device comprising a drainage ditch and a base, the drainage ditch having two wings extending horizontally outward from its long side, a pair of bases partially enclosing the two wings of the drainage ditch, the drainage ditch and the bases being fixedly connected to the sidewalls of the expansion joint; a folded-edge cover plate is slidably connected above the base, the folded-edge cover plate completely covering both sides of the expansion joint; a downpipe communicating with the interior is fixedly connected to the bottom surface of the drainage ditch; a downpipe is embedded within the expansion joint, and the downpipe is suspended and embedded within the downpipe; a slide rail is fixedly connected to the side of each pair of bases facing the expansion joint; after installation, there is an angle between the slide rod and the slide rail.

[0010] Furthermore, the angle between the slide bar and the slide rail is 45°.

[0011] Furthermore, the sidewall of the expansion joint facing the drainage device is a stepped groove, and the plane from top to bottom is the base surface, the first load-bearing surface and the second load-bearing surface in sequence; the top surface of the second load-bearing surface is fixedly connected to the two wings of the drainage ditch, the base is fixedly connected to the first load-bearing surface, and the two sides of the cover plate with folded edges are pressed onto the base surface.

[0012] Furthermore, each side of the drainage ditch is a slope, and the angle between the slope and the bottom surface is 101°.

[0013] Furthermore, a plurality of sliding rods are slidably connected to a pair of the bases in the direction of the expansion joint; the sliding rods are detachably connected to the cover plate with folded edges.

[0014] Furthermore, each end of the slide rod is fixedly connected to a slide ball, which is embedded in a slide rail fixedly connected to the base and slidably connected to the slide rail.

[0015] Furthermore, a screw cap is fixed at the center of the slide rod, and a screw matching the screw cap is installed on the center line of the cover plate with folded edge at the position corresponding to the screw cap. The screw cap and the screw are detachably connected.

[0016] Furthermore, the slope of the bottom of the drainage ditch towards the downpipe is 2%.

[0017] Furthermore, the length of the two wings of the drainage ditch is less than or equal to the length of the drainage ditch, and the length of the cover plate with folded edges is less than or equal to the length of the drainage ditch.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The folded-edge cover plate in this solution is slidably connected to the base via a sliding rod. When the connecting corridor falls or suffers minor damage, the base will move the folded-edge cover plate along with it via a sliding rail, ensuring that the folded-edge cover plate still tightly covers both sides of the expansion joint. This solves the problem of water seepage and leakage in the expansion joint caused by the non-tight metal cover plate. In addition, this drainage device is easy to construct, low in cost, and effectively shortens the construction time.

[0021] Second, the angle between the sliding rod and the base in this scheme is 45°. When the connecting corridor falls or suffers slight damage, the angle of the sliding rod can vary greatly with the width of the expansion joint. This makes it less likely for the sliding rod to fall off the slide rail or cause pressure on the slide rail when the width of the expansion joint changes.

[0022] Third, the expansion joint drainage device provided in this plan helps reduce the need for repeated repairs to the ceiling and suspended slab due to water leakage, saves project costs, speeds up project progress, and promotes green construction and environmental protection.

[0023] IV. The expansion joint drainage device provided in this solution sets up a drainage ditch inside the expansion joint of the connecting corridor floor. When there is rain or slanting wind and rain, rainwater flows into the expansion joint and is collected and gathered through the drainage ditch inside the expansion joint. It is then discharged through the matching rainwater pipe, avoiding the need for ceiling and slab repairs due to water leakage or seepage at the expansion joint. Attached Figure Description

[0024] Figure 1 This is a partial sectional view of the present invention;

[0025] Figure 2 This is a cross-sectional schematic diagram of the stepped groove on the connecting side of a section of the corridor of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the drainage device of this utility model;

[0027] Figure 4 for Figure 1 A schematic diagram of the structure of part A;

[0028] Figure 5 This is a partial sectional view of the drainage device of this utility model;

[0029] Figure 6 This is a partial top view of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Connecting corridor, 11. Base surface, 12. First load-bearing surface, 13. Second load-bearing surface, 2. Expansion joint, 3. Drainage device, 31. Drainage ditch, 32. Base, 321. Slide rail, 33. Cover plate with folded edge, 331. Screw, 34. Slide rod, 341. Slide rod ball, 342. Threaded cap, 35. Downpipe, 4. Drain pipe, a. Space, b. Angle. Detailed Implementation

[0032] Example 1:

[0033] like Figures 1-6 As shown, a drainage device is installed in an expansion joint, with the drainage device 3 nested in the expansion joint 2; a downpipe 4 is nested in the expansion joint 2, and the lower end of the drainage device 3 is embedded in and suspended from the upper end of the downpipe 4.

[0034] like Figure 1-Figure 2 As shown, the side wall of the expansion joint 2 is the connecting corridor 1. The side of the connecting corridor 1 facing the expansion joint 2 is a stepped groove. The plane from top to bottom is the base surface 11, the first load-bearing surface 12, and the second load-bearing surface 13. The height difference between the base surface 11 and the first load-bearing surface 12 is 15cm. The height difference between the second load-bearing surface 13 and the first load-bearing surface 12 is 5cm. This height difference allows the drainage device 3 to be accurately nested in the expansion joint, while also leaving a certain deformation space for the drainage device 3.

[0035] like Figure 3-Figure 5 As shown, the drainage device 3 includes a drainage ditch 31, a base 32, and a cover plate 33 with folded edges. The base 31 is a coverless structure, and its long end extends horizontally outward with two wings. The two wings are fixed to the upper end of the second load-bearing surface 13 by construction adhesive, so that the drainage device 3 can be stably installed on the second load-bearing surface 13 and is not easy to fall off the second load-bearing surface 13. A pair of bases 32 are fixed to the upper end of the first load-bearing surface 12 by expansion bolts, and the bases 32 partially surround the two wings of the drainage ditch 31, so that the bases 32 are not easy to fall off the second load-bearing surface 12. A space 'a' is left between the bases 32 and the drainage ditch 31, so that the drainage device 3 is not easily affected by the expansion, contraction, or drop of the building.

[0036] like Figure 4 and Figure 5 As shown, a sliding rod 34 is slidably connected between a pair of bases 32. Both ends of the sliding rod 34 are fixedly connected to sliding rod balls 341. Each of the two bases 32 facing the expansion joint 2 is fixed with a slide rail 321 that matches the sliding rod ball 341. The sliding rod ball 341 is embedded in the slide rail 321 and slidably connected to the slide rail 321.

[0037] A screw cap 342 is fixed at the center of the slide bar 34. A screw 331, which matches the screw cap 342, is installed on the center line of the cover plate 33 with folded edge, at the position corresponding to the screw cap 342. The screw 331 and the screw cap 342 can be detachably connected. This design provides convenience for subsequent maintenance.

[0038] like Figure 6 As shown, after the sliding ball 341 is embedded in the slide rail 321, the included angle b between the sliding rod 34 and the slide rail 321 is 45°; such an included angle is because the deformation joint 2 has deformation space due to expansion, contraction or drop, thereby reducing the impact on the drainage device 3.

[0039] A downpipe 35 is fixedly connected to either end of the center line of the bottom surface of the drainage ditch 31. The downpipe 35 is connected to the interior of the drainage ditch 31, and the slope of the bottom surface of the drainage ditch 31 towards the downpipe 35 is 2%. This design allows water that seeps into the drainage ditch 31 to flow along the bottom surface into the downpipe 35, preventing excessive water retention in the drainage ditch 31 from affecting the use of the drainage device 3.

[0040] During installation, a groove needs to be made according to the size of the expansion joint 2, and a template of the drainage ditch 31 needs to be cut out according to the drawings and welded together. Then, the downpipe 35 is welded to the assembled drainage ditch 31 and fixed to the second load-bearing surface 13 with construction adhesive. The installation position of the base 32 is determined by measurement and fixed to the first load-bearing surface 12 with expansion bolts. Then, several sliding rods 34 with a width suitable for the drainage ditch 31 are selected and installed into the slide rail 321 of the base 32 at an angle of 45° with the slide rail 321. The position of the cover plate 33 with the folded edge is determined and the screws 331 are tightened so that the cover plate 33 with the folded edge is detachably connected to the sliding rods 34. After installation, the folded cover plate 33 is tightly fastened to the base surface 11 and completely covers both sides of the expansion joint 2, making it difficult for rainwater to seep into the expansion joint 2. If rainwater accidentally seeps into the expansion joint 2, it will flow into the downpipe 35 under the guidance of the drainage ditch 31, and then flow along the downpipe 35 into the drain pipe 4, and finally be discharged from the drain pipe 4.

Claims

1. A drainage device installed in an expansion joint, characterized in that: A drainage device (3) is nested within the expansion joint (2). The drainage device (3) includes a drainage ditch (31) and a base (32). The long side of the drainage ditch (31) extends horizontally outward with two wings. A pair of bases (32) partially surround the two wings of the drainage ditch (31). Both the drainage ditch (31) and the bases (32) are fixedly connected to the sidewall of the expansion joint (2). A cover plate (33) with folded edges is slidably connected above the base (32). The cover plate (33) completely covers both sides of the expansion joint (2); the bottom surface of the drainage ditch (31) is fixedly connected to the drain pipe (35) that communicates with the interior; the expansion joint (2) is embedded in the drain pipe (4), and the drain pipe (35) is suspended and embedded in the drain pipe (4); a pair of bases (32) are fixedly connected to the slide rail (321) on the side facing the expansion joint (2); after installation, there is an angle (b) between the slide rod (34) and the slide rail (321).

2. A drainage device installed in an expansion joint according to claim 1, characterized in that: The sidewall of the expansion joint (2) facing the drainage device (3) is a stepped groove. The plane from top to bottom is the base surface (11), the first load-bearing surface (12), and the second load-bearing surface (13). The top surface of the second load-bearing surface (13) is fixedly connected to the two wings of the drainage ditch (31), the base (32) is fixedly connected to the first load-bearing surface (12), and the two sides of the cover plate (33) with folded edges are pressed onto the base surface (11).

3. A drainage device installed in an expansion joint according to claim 1, characterized in that: Each side of the drainage ditch (31) is a slope.

4. A drainage device installed in an expansion joint according to claim 1, characterized in that: A pair of bases (32) are slidably connected to a plurality of slide rods (34) in the direction of the expansion joint (2); the slide rods (34) are detachably connected to the cover plate (33) with folded edges.

5. A drainage device installed in an expansion joint according to claim 4, characterized in that: Both ends of the slide bar (34) are fixedly connected to slide bar balls (341), which are embedded in the slide rail (321) fixedly connected to the base (32) and are slidably connected to the slide rail (321).

6. A drainage device installed in an expansion joint according to claim 4, characterized in that: A screw cap (342) is fixed at the center of the slide rod (34). A screw (331) matching the screw cap (342) is installed on the center line of the cover plate (33) with folded edge and at the position corresponding to the screw cap (342). The screw cap (342) and the screw (331) can be detachably connected.

7. A drainage device installed in an expansion joint according to claim 1, characterized in that: The slope of the bottom of the drainage ditch (31) towards the downpipe (35) is 2%.

Citation Information

Patent Citations

  • Novel anti-seismic deformation joint waterproof structure

    CN218541009U