Urban underground structure waterproof protective coating, laying device and laying method

Abstract

The invention relates to the technical field of waterproof coating laying, in particular to an urban underground structure waterproof protective coating, a laying device and a laying method. The waterproof protection coating comprises a surface protection layer, a function response layer, a structure enhancement layer and a substrate layer which are sequentially arranged from outside to inside. The paving device comprises a paving trolley, a placement frame is arranged on the upper portion of the paving trolley, a paving part is arranged at the bottom of the front side of the paving trolley, an extrusion roller is arranged on the rear side of the paving trolley, and a paving assembly is arranged on the front side of the paving trolley; according to the laying method, a waterproof protective coating coiled material is placed on the placing frame of the laying device, and the front end of the waterproof protective coating is dragged to sequentially pass through the first guide roller, the second guide roller and the laying part and then reach the bottom of the extrusion roller. The multiple auxiliary wheels move outwards in sequence in the rotating process, the middle of the coating can be tensioned outwards, wrinkles are reduced, and it is guaranteed that the waterproof protective coating is laid flatly.

Description

Technical Field

[0001] This invention relates to the field of waterproof coating laying technology, specifically to a waterproof protective coating for urban underground structures, a laying device, and a laying method. Background Technology

[0002] The current installation of waterproof membranes in urban underground projects (such as integrated pipe corridors, tunnels, and basements) faces multiple technical bottlenecks. Traditional manual or semi-automatic equipment has significant defects in efficiency, accuracy, and adaptability. During installation, the waterproof protective coating is prone to wrinkling and stress concentration. Traditional roller pressing equipment causes uneven stress distribution, resulting in a warping rate of more than 8% at the edge of the membrane, forming leakage channels that require secondary manual repair. Furthermore, the existing membranes have a short lifespan and high maintenance costs.

[0003] Therefore, this application provides a waterproof protective coating for urban underground structures, a laying device and a laying method, which solves the problems of short life of roll materials, easy wrinkling during laying and high maintenance costs in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a waterproof protective coating for urban underground structures, an installation device, and an installation method.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a waterproof protective coating for urban underground structures, comprising a surface protective layer, a functional response layer, a structural reinforcement layer and a base layer arranged sequentially from the outside to the inside, wherein the base layer comprises a modified polyurethane elastomer, the functional response layer comprises an electrospun polyvinyl alcohol-carbon nanotube composite film, the structural reinforcement layer is a mortar-like layer, and the surface protective layer is a superhydrophobic nano-coating.

[0006] As an optimization, the thickness of the substrate layer is 50-100 μm, and nano-silica is uniformly added; The structural reinforcement layer has a thickness of 100 nm and is composed of fluorinated silica nanosheets and an aqueous epoxy resin-organosilicon hybrid binder. The thickness of the functional response layer is 10-30 μm, and its air permeability is ≥50K. The thickness of the surface protective layer is 5-10 μm, and it is made of fluorine-free organosilicon modified nano-titanium dioxide material.

[0007] A waterproof protective coating laying device for urban underground structures includes a paving trolley, a placement frame is configured on the upper part of the paving trolley, a paving part is configured on the bottom front side of the paving trolley, and an extrusion roller is configured on the rear side of the paving trolley. The extrusion roller and the paving part are arranged in parallel. The front end of the paving trolley is fixedly equipped with a mounting frame. The paving part includes two paving components symmetrically arranged on both sides of the mounting frame. Each paving component includes a fixed shaft and an auxiliary roller. The fixed shaft is rotatably connected to the mounting frame. The auxiliary roller is rotatably disposed at the outer end of the fixed shaft. The fixed shaft is equipped with several auxiliary wheels. A drive rod is provided at the axis of the fixed shaft. When the auxiliary wheel is connected to the drive rod, the drive rod drives the auxiliary wheel to move along the fixed shaft. When the auxiliary wheel is separated from the fixed shaft, the auxiliary wheel rotates synchronously with the fixed shaft. The outer surface of the auxiliary roller is provided with a spiral anti-slip texture.

[0008] As an optimization, the fixed shaft is coaxially arranged with the drive rod, and a drive motor is configured at one end of the drive rod; The fixed shaft has a connection opening along its length. An auxiliary telescopic rod is provided inside the auxiliary wheel. The extended end of the auxiliary telescopic rod is equipped with an arc-shaped connecting piece. The connecting piece is located between the drive rod and the fixed shaft. When the auxiliary telescopic rod extends, it drives the connecting piece to engage with the drive rod, so that the drive rod can drive the auxiliary wheel to move along the length of the fixed shaft.

[0009] As an optimization, the inner side of the connecting piece is provided with a connecting thread, and the driving rod is a threaded rod.

[0010] As an optimization, the auxiliary roller is internally equipped with an auxiliary motor, the output shaft of which is connected to the axis of the fixed shaft. The anti-slip texture spirals of the two symmetrically arranged auxiliary rollers are in opposite directions. The auxiliary rollers rotate faster and push the waterproof protective coating outward through the anti-slip texture.

[0011] As an optimization, the top opening of the placement rack is used to place the waterproof coating roll material, so a first guide roller is arranged on the front side of the placement rack, and a second guide roller is arranged on the front side of the paving trolley, with the second guide roller located diagonally in front of the paving section. The rear of the paving trolley is equipped with a handrail, and the handrail is equipped with a control panel.

[0012] A method for laying a waterproof protective coating on urban underground structures includes the following steps: The waterproof protective coating roll is placed on the placement frame of the laying device, and the front end of the waterproof protective coating is pulled through the first guide roller, the second guide roller and the laying section in sequence to reach the bottom of the extrusion roller. Move the laying device forward to lay the waterproof protective coating.

[0013] As an optimization, when laying the waterproof protective coating, the auxiliary wheels that are far from the mounting frame are connected to the drive rod in sequence, which drives the auxiliary wheels to move outward along the length of the mounting frame to push and flatten the waterproof protective coating. At the same time, the drive rollers rotate faster, pushing the edges of the waterproof protective coating outward to keep the edges of the waterproof protective coating flat.

[0014] The beneficial effects of this plan are as follows: This application includes auxiliary rollers with spiral anti-slip textures. The anti-slip textures of the two auxiliary rollers are arranged in opposite directions, which can push the edge coating outward, eliminate edge stress concentration, and reduce warpage. During installation, multiple auxiliary wheels move outwards in sequence as they rotate, which pulls the center of the coating outwards to tighten it, reduce wrinkles, and ensure a smooth installation of the waterproof protective coating.

[0015] The waterproof protective coating of this application comprises a base layer, a structural reinforcement layer, a functional response layer, and a surface protection layer. Through multi-layer synergy, it achieves a four-fold functional integration of "hydrophobicity-reinforcement-repair-response," which can effectively improve the abrasion resistance, breathability, and elasticity of the waterproof protective coating. Combined with the laying device and laying method of this application, it can effectively improve the service life of the waterproof protective coating. Attached Figure Description

[0016] Figure 1 This is an isometric view of the present invention.

[0017] Figure 2 This is a schematic diagram of the left side of the present invention.

[0018] Figure 3 This is a schematic diagram of the bottom axial side of the present invention.

[0019] Figure 4 This is an isometric view of the paving section of the present invention.

[0020] Figure 5 This is a schematic diagram of the upper axial side of the present invention.

[0021] Figure 6 This is a front view schematic diagram of the paving portion of the present invention.

[0022] Figure 7 For the present invention Figure 6 A schematic diagram of the AA cross-section structure.

[0023] Figure 8 For the present invention Figure 6 A schematic diagram of the BB cross-section structure.

[0024] Figure 9 For the present invention Figure 8 A magnified structural diagram of part C.

[0025] Among them, 1. Paving trolley, 2. Placement frame, 3. Extrusion roller, 4. Mounting frame, 5. Fixed shaft, 6. Auxiliary roller, 7. Auxiliary wheel, 8. Drive rod, 9. Anti-slip texture, 10. Drive motor, 11. Connecting opening, 12. Auxiliary telescopic rod, 13. Connecting piece, 14. Auxiliary motor, 15. First guide roller, 16. Second guide roller, 17. Handrail. Detailed Implementation

[0026] A waterproof protective coating for urban underground structures includes a surface protective layer, a functional response layer, a structural reinforcement layer, and a base layer arranged sequentially from the outside to the inside. The base layer includes a modified polyurethane elastomer, the functional response layer includes an electrospun polyvinyl alcohol-carbon nanotube composite film, the structural reinforcement layer is a mortar-like layer, and the surface protective layer is a superhydrophobic nanocoating.

[0027] The thickness of the substrate layer is 50-100μm, and nano-silica is uniformly added; Microcapsules with a diameter of 3-5 μm are pre-embedded inside the substrate. The wall material of the microcapsules is urea-formaldehyde resin, and the core material is hydroxyl-terminated polydimethylsiloxane. When damaged, the siloxane is released to fill the crack. The bonding strength between the substrate and the concrete substrate is ≥2.5 MPa.

[0028] The structural reinforcement layer has a thickness of 100 nm and is composed of fluorinated silica nanosheets and an aqueous epoxy resin-organosilicon hybrid binder. The thickness of the functional response layer is 10-30 μm, and its air permeability is ≥50K. The functional response layer contains a carbon nanotube network (accounting for 3% of the film mass) to monitor humidity in real time and feeds back to the control system through resistance changes. When the humidity is >75%, the pores of the film expand to 5μm.

[0029] The thickness of the surface protective layer is 5-10 μm, and it is made of fluorine-free organosilicon modified nano-titanium dioxide material.

[0030] Nano-TiO2 is modified with a silane coupling agent and then sprayed onto the surface. Under ultraviolet light, it catalytically decomposes organic pollutants on the surface.

[0031] like Figures 1-9 As shown, a method for laying a waterproof protective coating for an urban underground structure includes a paving trolley 1, a placement frame 2 on the upper part of the paving trolley 1, a paving part on the bottom front side of the paving trolley 1, and an extrusion roller 3 on the rear side of the paving trolley 1. The extrusion roller 3 and the paving part are arranged parallel to each other. The front end of the paving trolley 1 is fixedly equipped with a mounting frame 4. The paving part includes two paving components symmetrically arranged on both sides of the mounting frame 4. The paving component includes a fixed shaft 5 and an auxiliary roller 6. The fixed shaft 5 is rotatably connected to the mounting frame 4. The auxiliary roller 6 is rotatably arranged at the outer end of the fixed shaft 5. The fixed shaft 5 is equipped with a plurality of auxiliary wheels 7. A drive rod 8 is arranged at the axis of the fixed shaft 5. When the auxiliary wheel 7 is connected to the drive rod 8, the drive rod 8 drives the auxiliary wheel 7 to move along the fixed shaft 5. When the auxiliary wheel 7 is separated from the fixed shaft 5, the auxiliary wheel 7 rotates synchronously with the fixed shaft 5. The outer side of the auxiliary roller 6 is provided with a spiral anti-slip texture 9.

[0032] The waterproof protective coating is cut to a width of 0.8-1.2m and then rolled up to form a waterproof coating roll. The entire roll of waterproof coating roll is placed inside the mounting frame 4, and the mounting frame 4 limits the rollers of the waterproof coating roll.

[0033] The left auxiliary roller 6 rotates counterclockwise (right spiral pattern), and the right auxiliary roller 6 rotates clockwise (left spiral pattern), generating an outward thrust of >5N / m to eliminate edge stress.

[0034] The flattened waterproof protective coating is pressed by the extrusion roller 3 and instantly bonded to the base surface.

[0035] like Figure 7 and Figure 8 As shown, the fixed shaft 5 is coaxially arranged with the drive rod 8, and a drive motor 10 is configured at one end of the drive rod 8; The fixed shaft 5 has a connection opening 11 along its length. The auxiliary wheel 7 has an auxiliary telescopic rod 12 inside. The extended end of the auxiliary telescopic rod 12 is equipped with an arc-shaped connecting piece 13. The connecting piece 13 is located between the drive rod 8 and the fixed shaft 5. When the auxiliary telescopic rod 12 extends, it drives the connecting piece 13 to engage with the drive rod 8, so that the drive rod 8 can drive the auxiliary wheel 7 to move along the length of the fixed shaft 5.

[0036] The connecting opening 11 is used to accommodate the auxiliary telescopic rod 12. When the auxiliary telescopic rod 12 is shortened, the connecting piece 13 clamps the fixed shaft 5, so that the fixed shaft 5 and the auxiliary wheel 7 remain fixed relative to each other, and the auxiliary wheel 7 can rotate with the fixed shaft 5.

[0037] When the auxiliary telescopic rod 12 extends, the connecting piece 13 clamps the drive rod 8, the auxiliary wheel 7 is released from the drive shaft, the connecting piece 13 engages with the drive rod 8, and the drive rod 8 drives the connecting piece 13 to move, so that the auxiliary wheel 7 moves along the connecting opening 11.

[0038] The inner side of the connecting piece 13 is provided with a connecting thread, and the driving rod 8 is a threaded rod.

[0039] like Figures 7-9 As shown, the auxiliary roller 6 is equipped with an auxiliary motor 14. The output shaft of the auxiliary motor 14 is connected to the axis of the fixed shaft 5. The anti-slip texture 9 of the two symmetrically arranged auxiliary rollers 6 has opposite spiral directions. The auxiliary rollers 6 rotate faster and push the waterproof protective coating outward through the anti-slip texture 9.

[0040] When the auxiliary motor 14 is running, the housing of the auxiliary motor 14 drives the auxiliary roller 6 to rotate. When the fixed shaft 5 pushes the waterproof coating protective layer forward, the auxiliary roller 6 rotates synchronously at an accelerated speed, stretching and tightening the edge of the waterproof coating protective layer outward.

[0041] like Figure 2 As shown, the top opening of the placement rack 2 is used to place the waterproof coating roll material. Therefore, a first guide roller 15 is arranged on the front side of the placement rack 2, and a second guide roller 16 is arranged on the front side of the paving trolley 1. The second guide roller 16 is located diagonally in front of the paving section. The rear side of the paving trolley 1 is equipped with a handrail 17, and the handrail 17 is equipped with a control panel.

[0042] The front end of the waterproof protective coating is lifted after being guided by the first guide roller 15, and then pulled down to the lower part of the paved section after being guided by the second guide roller 16, thus buffering the tension of the waterproof protective coating.

[0043] A method for laying a waterproof protective coating on urban underground structures includes the following steps: The waterproof protective coating roll is placed on the placement frame 2 of the laying device, and the front end of the waterproof protective coating is pulled through the first guide roller 15, the second guide roller 16 and the laying part in sequence to reach the bottom of the extrusion roller 3. Move the laying device forward to lay the waterproof protective coating.

[0044] When laying the waterproof protective coating, the auxiliary wheels 7 that are far away from the mounting frame 4 are connected to the drive rod 8 in sequence, which drives the auxiliary wheels 7 to move outward along the length of the mounting frame 4, pushing and flattening the waterproof protective coating. At the same time, the drive rollers rotate faster, pushing the edges of the waterproof protective coating outward to keep the edges of the waterproof protective coating flat.

[0045] The two paving components are symmetrically arranged. During use, the two auxiliary wheels 7 move outward along the fixed axis 5 at the same time. The two auxiliary wheels 7 move outward from the middle of the waterproof protective coating, smoothing the waterproof protective coating outward and reducing wrinkles and bubbles in the waterproof protective coating. Multiple auxiliary rollers 6 move outwards in sequence to continuously smooth and tighten the waterproof protective coating, ensuring the laying effect of the waterproof protective coating.

[0046] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any waterproof protective coating, laying device and laying method for urban underground structures that conforms to the claims of the present invention, and any appropriate changes or modifications made thereto by those skilled in the art, shall fall within the patent protection scope of the present invention.

Claims

1. A waterproof protective coating for urban underground structures, characterized in that: It includes a surface protective layer, a functional response layer, a structural reinforcement layer and a base layer arranged sequentially from the outside to the inside. The base layer includes a modified polyurethane elastomer, the functional response layer includes an electrospun polyvinyl alcohol-carbon nanotube composite film, the structural reinforcement layer is a mortar-like layer, and the surface protective layer is a superhydrophobic nano-coating.

2. The waterproof protective coating for urban underground structures according to claim 1, characterized in that: The thickness of the substrate layer is 50-100μm, and nano-silica is uniformly added; The structural reinforcement layer has a thickness of 100 nm and is composed of fluorinated silica nanosheets and an aqueous epoxy resin-organosilicon hybrid binder. The thickness of the functional response layer is 10-30 μm, and its air permeability is ≥50K. The thickness of the surface protective layer is 5-10 μm, and it is made of fluorine-free organosilicon modified nano-titanium dioxide material.

3. A device for laying a waterproof protective coating for urban underground structures, used for laying the waterproof protective coating as described in any one of claims 1-2, characterized in that: It includes a paving trolley (1), the upper part of which is equipped with a placement rack (2), the bottom front side of which is equipped with a paving part, and the rear side of which is equipped with an extrusion roller (3), the extrusion roller (3) and the paving part being arranged in parallel. The front end of the paving trolley (1) is fixedly provided with a mounting frame (4). The paving part includes two paving components symmetrically arranged on both sides of the mounting frame (4). The paving component includes a fixed shaft (5) and an auxiliary roller (6). The fixed shaft (5) is rotatably connected to the mounting frame (4). The auxiliary roller (6) is rotatably arranged at the outer end of the fixed shaft (5). The fixed shaft (5) is provided with a plurality of auxiliary wheels (7). The axis of the fixed shaft (5) is provided with a drive rod (8). When the auxiliary wheel (7) is connected to the drive rod (8), the drive rod (8) drives the auxiliary wheel (7) to move along the fixed shaft (5). When the auxiliary wheel (7) is separated from the fixed shaft (5), the auxiliary wheel (7) rotates synchronously with the fixed shaft (5). The outer side of the auxiliary roller (6) is provided with a spiral anti-slip texture (9).

4. The waterproof protective coating laying device for urban underground structures according to claim 3, characterized in that: The fixed shaft (5) is coaxially arranged with the drive rod (8), and a drive motor (10) is provided at one end of the drive rod (8); The fixed shaft (5) has a connection opening (11) along its length. The auxiliary wheel (7) has an auxiliary telescopic rod (12) inside. The extended end of the auxiliary telescopic rod (12) is equipped with an arc-shaped connecting piece (13). The connecting piece (13) is located between the drive rod (8) and the fixed shaft (5). When the auxiliary telescopic rod (12) extends, it drives the connecting piece (13) to engage with the drive rod (8), so that the drive rod (8) can drive the auxiliary wheel (7) to move along the length of the fixed shaft (5).

5. The waterproof protective coating laying device for urban underground structures according to claim 4, characterized in that: The inner side of the connecting piece (13) is provided with a connecting thread, and the driving rod (8) is a threaded rod.

6. The waterproof protective coating laying device for urban underground structures according to claim 3, characterized in that: An auxiliary motor (14) is installed inside the auxiliary roller (6). The output shaft of the auxiliary motor (14) is connected to the axis of the fixed shaft (5). The anti-slip texture (9) of the two symmetrically arranged auxiliary rollers (6) has opposite spiral directions. The auxiliary rollers (6) rotate faster and push the waterproof protective coating outward through the anti-slip texture (9).

7. The waterproof protective coating laying device for urban underground structures according to claim 3, characterized in that: The top opening of the placement rack (2) is used to place the waterproof coating roll material. Therefore, a first guide roller (15) is arranged on the front side of the placement rack (2), and a second guide roller (16) is arranged on the front side of the paving trolley (1). The second guide roller (16) is located diagonally in front of the paving section. The rear side of the paving trolley (1) is provided with a handrail (17), and the handrail (17) is provided with a control panel.

8. A method for laying a waterproof protective coating for urban underground structures, comprising using a waterproof protective coating laying device to lay the aforementioned waterproof protective coating for urban underground structures, characterized in that: Includes the following steps: The waterproof protective coating roll is placed on the placement frame (2) of the laying device, and the front end of the waterproof protective coating is pulled through the first guide roller (15), the second guide roller (16) and the laying part in sequence to reach the bottom of the extrusion roller (3). Move the laying device forward to lay the waterproof protective coating.

9. A method for laying a waterproof protective coating for urban underground structures according to claim 8, characterized in that: When laying the waterproof protective coating, the auxiliary wheels (7) that are far away from the mounting frame (4) are connected to the drive rod (8) in sequence, which drives the auxiliary wheels (7) to move outward along the length of the mounting frame (4) to push and flatten the waterproof protective coating. At the same time, the drive rollers rotate faster, pushing the edges of the waterproof protective coating outward to keep the edges of the waterproof protective coating flat.

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