A fixing clip for waterproof sheet construction

Abstract

The utility model discloses a kind of for the fixing clamp of waterproof sheet construction, including U-shaped clamping groove and clamping bolt, the U-shaped clamping groove one end is equipped with bolt hole, the other end inside is provided with diamond-shaped antiskid sheet, the surface of diamond-shaped antiskid sheet is covered with pitch barrier coating;The one end of the clamping bolt is connected clamping plate, the clamping plate bottom is equipped with the diamond-shaped antiskid sheet, and the surface of diamond-shaped antiskid sheet is covered pitch barrier coating;The clamping plate is embedded in U-shaped clamping groove inside, by the screwing of the clamping bolt drive the clamping plate compaction waterproof sheet.It is avoided that fixing clamp is directly contacted and welded with waterproof sheet and building reinforcement, prevent electrochemical corrosion by barrier coating, and diamond structure enhances clamping stability.The utility model has the characteristics of compact structure, low cost, repeatable adjustment, excellent anti-slip performance, can significantly improve the durability and construction efficiency of waterproof structure.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction tools, specifically a fixing clip for the construction of waterproof sheets. Background Technology

[0002] In the field of hydraulic engineering, structural joints are often incorporated into hydraulic structures to accommodate uneven settlement and temperature deformation. These joints are prone to leakage due to stress concentration, and flexible waterproof sheets are typically used as a sealing measure. Waterproof sheets, such as stainless steel sheets and copper sheets, are made of highly ductile metal materials and possess excellent deformation adaptability and electrical conductivity, making them widely used in critical waterproofing areas such as dams and underground corridors.

[0003] In current construction techniques, waterproof sheets are mostly fixed directly to the building's reinforcing steel through welding. However, direct welding of dissimilar metals in a concrete environment easily leads to electrochemical corrosion problems: First, the potential difference at the weld interface due to compositional differences accelerates corrosion as the metal sheet acts as the anode; second, defects such as intergranular cracks and pores occur in the weld heat-affected zone, exacerbating the penetration of corrosive media; third, the alkaline environment of concrete and chloride ion erosion work synergistically, resulting in an 80% increase in the corrosion rate of the weld area. Existing elastic fixing clips used for waterproof sheet construction only provide mechanical fixing, have poor stability, and cannot effectively solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a compact, reliable, and easily industrialized fixing clip for waterproof sheets. Through the synergistic effect of innovative structure and anti-corrosion design, it solves the problems of electrochemical corrosion and unstable clamping that exist in traditional fixing methods.

[0005] A fixing clamp for waterproof sheet installation includes a U-shaped clamping groove and a clamping bolt. One end of the U-shaped clamping groove has a bolt hole, and the inner side of the other end is provided with a diamond-shaped anti-slip piece, the surface of which is covered with an asphalt barrier coating. One end of the clamping bolt is connected to a clamping plate, the bottom of which is provided with the diamond-shaped anti-slip piece, and the surface of the diamond-shaped anti-slip piece at the bottom of the clamping plate is also covered with an asphalt barrier coating. The clamping plate is embedded inside the U-shaped clamping groove, and the clamping plate is driven to press the waterproof sheet against the clamping bolt by tightening it. This method presses the waterproof sheet against the inner wall of the U-shaped clamping groove, making operation convenient, time-saving, and labor-saving.

[0006] Furthermore, the clamping bolt is vertically positioned at the center of one end of the U-shaped groove, and the diamond-shaped anti-slip piece on the clamping plate and the diamond-shaped anti-slip piece inside the U-shaped groove form an interlocking clamping structure. The clamping plate is circular or square in shape.

[0007] Furthermore, the rhombus-shaped anti-slip sheet has a side length of 1.5-3.0 mm, an interior angle of 60°-120°, and a center-to-center distance of 6-10 mm between adjacent rhombuses, forming an interlocking and pressing structure.

[0008] Furthermore, the thickness of the asphalt barrier coating is 0.5-1.5 mm. The coating thickness can be adjusted according to the different waterproof sheets that need to be clamped. Of course, the asphalt barrier coating can also be replaced by any one of epoxy resin coating or polyurethane elastomer coating, with a bonding strength between the coating and the waterproof sheet substrate ≥5 MPa.

[0009] The advantages of this utility model are as follows:

[0010] 1. The fixed clamp of this patent uses a threaded screw-driven mechanism to achieve linear displacement of the clamping plate. The single-person operation time is ≤10 seconds, and the clamping force is adjustable from 2-8kN, which significantly improves construction efficiency.

[0011] 2. Improved Mechanical Performance: The diamond-shaped anti-slip pad features a staggered edge design, resulting in a more uniform contact pressure distribution. The symmetrical structure of the diamond units reduces stress concentration, and the anti-slip shear force can be increased to ≥15kN / m. 2 Compared to the serrated structure, it improves by 25%, has a longer clamping force, and the diamond structure enhances clamping stability.

[0012] 3. Breakthrough in anti-corrosion performance: The barrier coating effectively isolates the metal contact interface, significantly reducing the electrochemical corrosion rate; High construction efficiency: The modular assembly design supports repeated adjustments, increasing single-point installation efficiency by 20% and reducing overall construction costs by 10%; Environmental adaptability: The barrier coating can maintain adhesion in environments ranging from -20℃ to 120℃, making it suitable for complex working conditions such as water conservancy and underground engineering.

[0013] This invention uses a threaded screw-driven mechanism to achieve linear displacement of the clamping plate, while using an anti-corrosion barrier coating to prevent direct contact and welding between the waterproof sheet and the building steel reinforcement. This satisfies the positioning and fixing requirements of the waterproof sheet construction and effectively prevents electrochemical corrosion between the waterproof sheet and the steel reinforcement, thus significantly improving the durability of the waterproof structure.

[0014] This utility model features a simple structure, convenient installation and disassembly, and low manufacturing cost. It can improve the installation efficiency and reliability of waterproof sheets, extend their service life, and reduce maintenance costs, thus having good economic benefits and broad application prospects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the fixing clip structure for waterproof sheet construction according to the present invention.

[0016] Figure 2 This is a front view of the device of this utility model.

[0017] Figure 3 This is a side view of the device of this utility model.

[0018] Figure 4 This is a top view of the device of this utility model.

[0019] Figure 5 This is a schematic diagram of the operation of the device of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] See appendix Figure 1-5 A fixing clamp for waterproof sheet construction includes a U-shaped clamping groove 1 and a clamping bolt 2. One end of the U-shaped clamping groove 1 has a bolt hole, and the inner side of the other end is provided with a diamond-shaped anti-slip piece 5, the surface of which is covered with an asphalt barrier coating 4. One end of the clamping bolt 2 is connected to a clamping plate 3, the bottom of which is provided with the diamond-shaped anti-slip piece 5, and the surface of the diamond-shaped anti-slip piece 5 is covered with the asphalt barrier coating 4. The clamping plate 3 is embedded inside the U-shaped clamping groove, and the clamping plate 3 is driven to press the waterproof sheet tightly by rotating the clamping bolt 2.

[0022] The clamping bolt 2 is vertically positioned at the center of one end of the U-shaped groove 1. The diamond-shaped anti-slip piece 5 at the bottom of the clamping plate 3 and the diamond-shaped anti-slip piece 5 on the inner side of the U-shaped groove form an interlocking and pressing structure. The clamping plate 3 is circular or square in shape.

[0023] The rhombus-shaped anti-slip sheet 5 has a unit rhombus side length of 1.5-3.0mm, an interior angle of 60°-120°, and a center-to-center distance of 6-10mm between adjacent rhombuses, forming an interlocking and pressing structure.

[0024] The thickness of the asphalt barrier coating 4 is 0.5-1.5 mm. The coating thickness can be adjusted according to the different waterproof sheets that need to be clamped. Of course, the asphalt barrier coating can also be replaced by any one of epoxy resin coating or polyurethane elastomer coating, and the bonding strength between the coating and the waterproof sheet substrate is ≥5 MPa.

[0025] This utility model proposes a fixing clip for waterproof sheets. Its innovative technology includes: using mechanical clamping to replace direct welding between the waterproof sheet and the building structure's reinforcing steel, completely eliminating contact between dissimilar metals. Specifically, the steel fixing clip is connected to the building's reinforcing steel via arc welding, with the welding point located a short distance from the edge of the waterproof sheet.

[0026] ≥50mm, no direct contact with the waterproof sheet material is required throughout the process.

[0027] The U-shaped clamping groove and clamping plate are equipped with a double-layer barrier coating to block the electrochemical corrosion path; the diamond-shaped anti-slip plate design achieves highly reliable anchoring. This device features modular assembly, convenience and speed, low cost, strong fatigue resistance, and long service life. It not only meets the positioning and fixing requirements of waterproof sheet construction, but also effectively avoids electrochemical corrosion between the waterproof sheet and the reinforcing steel, which can significantly improve the durability of the waterproof structure.

[0028] A specific embodiment of a waterproof sheet fixing clip includes the following steps:

[0029] During processing, bolt holes are precisely drilled on the upper surface of the U-shaped clamping groove; the inner lower plate surface of the U-shaped clamping groove and the contact surface of the clamping plate are treated with sandblasting process, with a surface roughness Ra≥12.5μm, and diamond-shaped anti-slip pads are set; an asphalt barrier coating is applied to the surface of the diamond-shaped anti-slip pads by high-pressure airless spraying process, with a coating thickness of 0.5-1.5mm, and then cured by high-temperature baking for 30 minutes to form a dense protective layer.

[0030] During actual construction, fixing clips are installed at intervals of 0.5-1.0m along the long side of the waterproof sheet; the clamping bolts are tightened to 18-22 N·m using a torque wrench to ensure that the diamond-shaped anti-slip plates clamp the surface of the waterproof sheet; finally, the fixing clips are connected to the structural steel bars by arc welding, with the welding point ≥50mm from the edge of the waterproof sheet. The entire process does not require direct contact with the waterproof sheet itself, which can effectively avoid electrochemical corrosion between the waterproof sheet and the steel bars and significantly improve the durability of the waterproof structure.

Claims

1. A fixing clamp for waterproof sheet construction comprising a U-shaped clamping groove (1) and a clamping bolt (2), characterized in that: One end of the U-shaped groove (1) is provided with a bolt hole, and the inner side of the other end is provided with a diamond-shaped anti-slip piece (5). The surface of the diamond-shaped anti-slip piece (5) is covered with an asphalt barrier coating (4). One end of the clamping bolt (2) is connected to the clamping plate (3). The bottom of the clamping plate (3) is provided with the diamond-shaped anti-slip piece (5), and the surface of the diamond-shaped anti-slip piece (5) at the bottom of the clamping plate (3) is covered with an asphalt barrier coating (4). The clamping plate (3) is embedded in the U-shaped groove (1), and the clamping plate (3) is driven to press the waterproof sheet by the screwing of the clamping bolt (2).

2. The fixing clip for waterproof sheet construction according to claim 1, characterized in that: The clamping bolt (2) is vertically positioned at the center of one end of the U-shaped groove (1). The diamond-shaped anti-slip piece (5) on the clamping plate (3) and the diamond-shaped anti-slip piece (5) on the inner side of the U-shaped groove form an interlocking clamping structure. The clamping plate (3) is circular or square in shape.

3. The fixing clip for waterproof sheet construction according to claim 1 or 2, characterized in that: The rhombus-shaped anti-slip sheet (5) has a unit rhombus side length of 1.5-3.0mm, an interior angle of 60°-120°, and a center distance of 6-10mm between adjacent rhombuses, forming an interlocking and pressing structure.

4. The fixing clip for waterproof sheet construction according to claim 1, characterized in that: The thickness of the asphalt barrier coating (4) is 0.5-1.5 mm.

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