Composite geomembrane bonding and pressing device

Abstract

The application relates to a composite geomembrane bonding and pressing device, and relates to the technical field of geomembrane construction. The frame body is provided with moving wheels at the bottom, is a modular splicing structure, and is suitable for different width lap joint areas. The pressing structure comprises front and rear rollers. The front roller is pre-pressed and flattened through a flattening cylinder, and the rear roller is main-pressed and bonded through a pushing cylinder. The rear roller is a heating roller and is internally provided with an electric heating element to soften the glue layer. The frame body is provided with a windproof curtain to form a local closed operation space. The device is suitable for the construction of seepage prevention projects in complex terrains and variable working conditions.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical seepage prevention material construction technology, and in particular to a composite geomembrane bonding and pressing device. Background Technology

[0002] Geomembranes, as an important seepage-proof material, are widely used in environmental protection and infrastructure construction such as landfills, artificial lakes, tailings ponds, and water conservancy projects. Their main function is to prevent liquid or gas infiltration, ensuring environmental safety and structural stability. In actual construction, geomembranes need to be overlapped and bonded using specialized adhesives to form a continuous and complete seepage-proof layer. Traditional manual rolling bonding methods are inefficient, the bonding quality is greatly affected by the worker's skill level, and it is difficult to guarantee the uniformity and sealing of the overlap area, easily leading to problems such as incomplete bonding and air bubbles.

[0003] To improve construction efficiency and bonding quality, various mechanized geomembrane pressing devices have emerged in recent years. In existing technologies, some pressing devices employ a single roller structure, directly rolling the geomembrane after adhesive application. While this achieves a degree of automation, it lacks pre-flattening treatment of the membrane surface, leading to wrinkles in the overlap area and affecting the bonding effect. Furthermore, these devices are typically of fixed dimensions, unable to be adjusted to meet varying overlap widths on-site, resulting in poor adaptability. Simultaneously, in outdoor construction environments, external factors such as wind, sand, and dust can easily contaminate the adhesive layer, reducing bonding strength, and existing equipment generally lacks effective environmental protection measures.

[0004] Although existing equipment has attempted to incorporate heating functions to promote colloid flow and fusion, these methods often separate heating from pressure application, or result in uncontrollable heating temperatures. This leads to low thermal efficiency, high energy consumption, and the risk of localized overheating damaging the geomembrane. In summary, existing geomembrane pressing devices still have significant shortcomings in terms of bonding quality, construction adaptability, environmental adaptability, and energy efficiency. There is an urgent need for a high-efficiency composite pressing device that integrates pre-compression and flattening, heating and pressurization, modular adjustment, and environmental protection to solve these technical challenges. Utility Model Content

[0005] In order to improve product quality and production efficiency, this utility model provides a composite geomembrane bonding and pressing device.

[0006] This utility model provides a composite geomembrane bonding and pressing device, which adopts the following technical solution:

[0007] A composite geomembrane bonding and pressing device includes a frame body and a pressing structure mounted on the frame body. The frame body has wheels at its bottom for movement on the construction site. The frame body is a modular splicing structure, which can be expanded or contracted in sections according to the width of the geomembrane joints. The pressing structure includes front and rear rollers. The front rollers are used for pre-pressing and flattening the overlapping area, and the rear rollers are used for main pressing and bonding the adhesive-coated area. A pushing cylinder is connected to the rear roller, and the piston rod of the pushing cylinder is connected to the rear roller. The pushing cylinder is mounted on the frame body. A flattening cylinder is connected to the front roller, and the piston rod of the flattening cylinder is connected to the front roller. The flattening cylinder and the pushing cylinder are positioned opposite each other on both sides of the frame body.

[0008] Preferably, the rear roller is a heated roller, which is equipped with an electric heating element inside to heat and soften the adhesive layer, thereby promoting the bonding and fusion of the composite geomembrane.

[0009] Preferably, the modular splicing structure achieves lateral expansion through connecting bolts and connecting plates, adapting to geomembrane overlap areas of different widths. The connecting plates connect adjacent frame bodies, and the connecting bolts connect the connecting plates and the frame bodies.

[0010] Preferably, the front roller is an elastic roller or a rubber-coated metal roller with anti-slip texture on its surface to improve the flattening effect on the geotextile.

[0011] Preferably, the movable wheel is a swivel wheel and is equipped with a braking locking mechanism for fixing the position of the device during operation.

[0012] Preferably, the frame body is also provided with a windproof curtain. The windproof curtain is made of flexible material and can be detachably installed on the top and sides of the frame body to form a partially enclosed working space.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. This application adopts a front and rear double roller working structure. The front roller pre-presses and flattens to eliminate wrinkles, while the rear roller heats and pressurizes to achieve efficient bonding, which significantly improves the flatness and bonding strength of the geomembrane overlap area and solves the problem of unstable bonding quality of traditional equipment.

[0015] 2. This application preferably adopts a modular frame and detachable windproof curtain design. Since the device can be flexibly expanded according to the joint width to form a partially enclosed working environment, it has good construction adaptability and environmental protection capabilities, and is especially suitable for field operations under varying terrain and harsh weather conditions. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a composite geomembrane bonding and pressing device.

[0017] Figure 2 This is a cross-sectional structural diagram of a composite geomembrane bonding and pressing device.

[0018] Explanation of reference numerals in the attached drawings: 1. Main frame; 11. Moving wheel; 12. Braking locking mechanism; 13. Modular splicing structure; 131. Connecting plate; 132. Connecting bolt; 14. Windproof curtain; 2. Pressing structure; 21. Front roller; 211. Anti-slip texture; 212. Flattening cylinder; 22. Rear roller; 221. Heating tube; 222. Pushing cylinder. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to all the accompanying drawings.

[0020] This utility model discloses a composite geomembrane bonding and pressing device.

[0021] Reference Figure 1 and Figure 2 A composite geomembrane bonding and pressing device includes a frame body 1 and a pressing structure 2. The frame body 1 is constructed of high-strength aluminum alloy profiles connected by bolts, and has four omnidirectional casters 11 installed at the bottom. Each caster 11 is equipped with a foot-operated braking locking mechanism 12 to ensure the equipment remains stable during operation. The frame body 1 adopts a modular splicing structure 13, which can be laterally expanded through galvanized connecting plates 131 and high-strength connecting bolts 132, and can be adjusted within the range of 2 meters to 6 meters according to the geomembrane overlap width.

[0022] Reference Figure 1 and Figure 2 The geomembrane pressing structure 2 includes a front roller 21 and a rear roller 22, which are installed at the front and rear positions of the frame body 1, respectively. The front roller 21 is a metal roller covered with natural rubber, with a diameter of 150mm and a diamond-shaped anti-slip texture 211 with a depth of 1mm on its surface. It is driven by flattening cylinders 212 on both sides to pre-press and flatten the geomembrane overlapping area. The rear roller 22 is a stainless steel heating roller with an internally embedded PTC heating tube 221. The heating temperature is set to 80℃ and maintained by a temperature control module. It is driven by a push cylinder 222 to heat and pressurize the adhesive application area for bonding. The flattening cylinder and the push cylinder 222 are symmetrically arranged on both sides of the frame to achieve independent pressure adjustment. Windproof curtains 14 made of 0.5mm thick PVC coated cloth can be detachably installed on the top and sides of the frame body 1 to form a semi-enclosed working space to prevent wind and sand from contaminating the adhesive layer.

[0023] Reference Figure 1 and Figure 2The implementation principle of Example 1 is as follows: During construction, the operator pushes the device along the geomembrane overlap line. First, the front roller 21, under the action of the flattening cylinder, lightly presses the overlap area, utilizing the elasticity of the rubber layer and the anti-slip texture 211 to eliminate membrane wrinkles and achieve initial adhesion. Subsequently, the rear roller 22, under the downward pressure of the pushing cylinder 222, rolls the adhesive-coated area at a set pressure and a high temperature of 80°C, allowing the adhesive to fully soften and flow, penetrating into the micropores of the membrane material to achieve a firm bond. The modular frame adapts to joints of different widths, the casters and braking mechanism ensure mobility and operational stability, and the windproof curtain 14 effectively isolates external interference. The entire process achieves integrated pre-flattening, heating, and pressurization, significantly improving bonding quality and construction efficiency.

[0024] The implementation principle of the composite geomembrane bonding and pressing device of this utility model is as follows: During construction, the operator pushes the device along the geomembrane overlap line. First, the front roller 21, under the action of the flattening cylinder, lightly presses the overlap area, utilizing the elasticity of the rubber layer and the anti-slip texture 211 to eliminate membrane wrinkles and achieve initial adhesion. Subsequently, the rear roller 22, under the downward pressure of the pushing cylinder 222, rolls the adhesive-coated area at a set pressure and a high temperature of 80°C, allowing the adhesive to fully soften and flow, penetrating into the micropores of the membrane material to achieve a firm bond. The modular frame adapts to joints of different widths, the universal wheels and braking mechanism ensure mobility and operational stability, and the windproof curtain 14 effectively isolates external interference. The entire process achieves integrated pre-flattening, heating, and pressurization, significantly improving bonding quality and construction efficiency.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A composite geomembrane bonding press device characterized by, The system includes a frame body (1) and a geomembrane structure (2) mounted on the frame body (1); the frame body (1) is equipped with wheels (11) at its bottom for movement on the construction site; the frame body (1) is a modular splicing structure (13) that can be expanded or contracted in sections according to the width of the geomembrane joints; the geomembrane structure (2) includes front rollers (21) and rear rollers (22) arranged at the front and rear, the front rollers (21) being used to pre-press and flatten the overlapping area. The rear roller (22) is used for main pressure bonding of the adhesive application area; a push cylinder (222) is connected to the rear roller (22), the piston rod of the push cylinder (222) is connected to the rear roller (22), the push cylinder (222) is set on the frame body (1), a flattening cylinder is connected to the front roller (21), the piston rod of the flattening cylinder is connected to the front roller (21), the flattening cylinder and the push cylinder (222) are arranged opposite to each other on both sides of the frame body (1).

2. The composite geomembrane bonding and pressing device according to claim 1, characterized in that, The rear roller (22) is a heating roller, which is equipped with an electric heating element inside to heat and soften the adhesive layer and promote the bonding and fusion of the composite geomembrane.

3. The composite geomembrane bonding and pressing device according to claim 1, characterized in that, The modular splicing structure (13) is extended laterally by connecting bolts (132) and connecting plates (131) to adapt to geomembrane overlap areas of different widths. The connecting plates (131) connect adjacent frame bodies (1), and the connecting bolts (132) connect the connecting plates (131) and the frame bodies (1).

4. The composite geomembrane bonding and pressing device according to claim 1, characterized in that, The front roller (21) is an elastic roller or a rubber-coated metal roller with anti-slip texture (211) on its surface to improve the flattening effect on the geotextile.

5. The composite geomembrane bonding and pressing device according to claim 1, wherein The movable wheel (11) is a universal wheel and is equipped with a braking locking mechanism (12) for fixing the position of the device during operation.

6. The composite geomembrane bonding and pressing device according to claim 1, wherein The frame body (1) is also provided with a windproof curtain (14), which is made of flexible material and can be detachably installed on the top and sides of the frame body (1) to form a partially enclosed working space.

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