Liftable geomembrane under membrane positioning device

Abstract

The utility model relates to the technical field of geotechnical engineering construction, disclose a liftable geomembrane lower membrane positioning device, including base, the top of base is fixedly connected with the mounting panel, the top of mounting panel is fixedly connected with the pneumatic cylinder, the drive end of pneumatic cylinder is fixedly connected with the rack, the top of mounting panel all is fixedly connected with a plurality of support plate no.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering construction technology, and in particular to a liftable geomembrane positioning device. Background Technology

[0002] The lower geomembrane layer refers to the bottom layer of geomembrane in a multi-layer geomembrane structure. In engineering applications, it plays a crucial role in seepage prevention, isolation, and protection. In seepage prevention projects such as landfills, reservoir dams, and tailings ponds, multiple layers of geomembranes are typically laid. The lower layer is in direct contact with the foundation soil or underlying structure. On the one hand, it must prevent liquids or gases from seeping downwards through the membrane, avoiding pollution of underground soil and water. On the other hand, it needs to isolate sharp objects and rocks in the foundation layer, protecting the upper geomembrane from mechanical damage and extending the service life of the entire seepage prevention system.

[0003] Geomembranes are flexible, seepage-proof materials made from high-molecular polymers such as polyethylene and polypropylene. Their function and working principle are closely related, playing a vital role in various engineering projects through their physical isolation and seepage-proof properties. In water conservancy projects, their low permeability allows them to be laid at the bottom and slopes of reservoirs and channels to prevent water leakage, maintain water level stability, and improve water resource utilization efficiency. In environmental engineering, such as landfills, their strong chemical stability forms a sealing barrier to prevent leachate from polluting the soil and groundwater, while also preventing the leakage of landfill gases. In the mining industry, geomembranes laid at the bottom of tailings ponds prevent harmful substances in tailings from seeping in, avoiding pollution of the surrounding environment.

[0004] Without a lifting mechanism, geomembranes face numerous challenges during installation. First, they struggle to adapt to complex terrain and precise adjustments required for varying construction heights. For instance, on slopes or uneven foundations, adjusting the membrane height to ensure a tight fit with the base layer can be difficult, leading to uneven laying, wrinkles, or suspended areas, thus affecting the seepage prevention effect. Second, the lack of a lifting mechanism increases the difficulty of manual operation, requiring significant manpower to repeatedly move and pull the geomembrane to adjust its position. This not only reduces construction efficiency but can also cause excessive stretching and damage due to improper manual operation. Therefore, a liftable geomembrane positioning device is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a liftable geomembrane positioning device, which aims to improve the existing technology's inability to cope with dynamic changes in terrain, meet special engineering needs, and increase the risk of membrane damage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A liftable geomembrane under-membrane positioning device includes a base, an mounting plate fixedly connected to the top of the base, a cylinder fixedly connected to the top of the mounting plate, a rack fixedly connected to the drive end of the cylinder, multiple support plates I fixedly connected to the top of each of the mounting plates I, a connecting rod I rotatably connected inside each of the multiple support plates I, gears fixedly connected to the outer walls of two of the connecting rods I, two circular plates I fixedly connected to the left and right ends of each of the two connecting rods I, a transmission rod I fixedly connected to the outer walls of each of the multiple circular plates I, a transmission rod II rotatably connected to the outer walls of each of the multiple transmission rods I, a fixing plate I rotatably connected to the top of each of the multiple transmission rods II, and a positioning component for positioning installed inside the base;

[0008] As a further description of the above technical solution:

[0009] The positioning component includes a square box, inside which a motor is fixedly connected. A circular plate is fixedly connected to the drive end of the motor. Two connecting rods are rotatably connected to the top of each circular plate. The other ends of the two connecting rods are rotatably connected to connecting plates. Support rods are fixedly connected to the top of each connecting plate.

[0010] As a further description of the above technical solution:

[0011] Each of the support rods has a fixed plate 2 fixedly connected to its top end, and each of the square boxes has a fixed limit rod fixedly connected to its interior.

[0012] As a further description of the above technical solution:

[0013] The top of each base is fixedly connected to two support plates, and the top of each fixed plate is rotatably connected to a roller. Rollers are rotatably connected to the adjacent sides of the two fixed plates.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the second support plate is provided with a sliding groove, and the outer wall of the first fixing plate is slidably connected to the inner wall of the second support plate.

[0016] As a further description of the above technical solution:

[0017] The support rod is externally slidably connected to the inner wall of the square box, and the external teeth of the two gears are meshed with the external teeth of the rack.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the second fixing plate is slidably connected to the top end of the square box, and the inner wall of the connecting plate is slidably connected to the outer wall of the limiting rod.

[0020] As a further description of the above technical solution:

[0021] The bottom end of the connecting plate is slidably connected to the inner wall of the square box, and a groove is provided at the top end of the square box.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, after the cylinder is started, the drive end drives the rack to move linearly. The rack meshes with the gear, causing the connecting rod to rotate, which in turn drives the circular plate to rotate. The circular plate transmits the motion to the fixed plate through the transmission rod and the transmission rod, thereby realizing the lifting and lowering of the fixed plate. This completes the positioning and height adjustment of the geomembrane underlayer. The lifting component in the liftable geomembrane underlayer positioning device can precisely adjust the height and pressure of the positioning component through power drive, realizing dynamic control of the geomembrane adhesion, thereby improving construction accuracy, adapting to complex terrain, improving work efficiency, protecting the membrane and equipment safety, and enhancing the versatility and ease of maintenance of the device.

[0024] 2. In this utility model, when the positioning component is working, the motor inside the square box starts, and its driving end drives the second circular plate to rotate. The second connecting rod connected to the top of the second circular plate swings accordingly. Through the rotational connection with the connecting plate, the motion is transmitted to the connecting plate, thereby enabling the support rod fixed at the top to adjust its position or angle, thus completing the precise positioning of the geomembrane underlayer. The positioning component in the liftable geomembrane underlayer positioning device can ensure the adhesion accuracy between the membrane and the base layer by precisely limiting the laying position and shape of the geomembrane, avoiding laying offset or wrinkles. At the same time, it can achieve dynamic adjustment in conjunction with the lifting component, improve the adaptability to complex terrain, reduce manual calibration costs, and ensure the integrity and reliability of the seepage prevention project. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the liftable geomembrane lower membrane positioning device proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the base of the liftable geomembrane lower membrane positioning device proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the mounting plate of the liftable geomembrane lower membrane positioning device proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the square box structure of the liftable geomembrane lower membrane positioning device proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Mounting plate; 3. Cylinder; 4. Rack; 5. Support plate one; 6. Connecting rod one; 7. Gear; 8. Circular plate one; 9. Transmission rod one; 10. Transmission rod two; 11. Fixing plate one; 12. Square box; 13. Motor; 14. Circular plate two; 15. Connecting rod two; 16. Connecting plate; 17. Support rod; 18. Fixing plate two; 19. Limiting rod; 20. Support plate two; 21. Roller one; 22. Roller two. Detailed Implementation

[0031] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a liftable geomembrane under-membrane positioning device, including a base 1. The base 1 provides installation space and stability for subsequent components, preventing shaking during operation. A mounting plate 2 is fixedly connected to the top of the base 1, providing a stable installation foundation for the mounting plate 2. A cylinder 3 is fixedly connected to the top of the mounting plate 2, providing installation space for the cylinder 3. The cylinder 3 is firmly fixed by the fixed connection to prevent displacement or shaking during operation. A rack 4 is fixedly connected to the drive end of the cylinder 3, transmitting linear extension force to the rack 4 through the drive end. The rack 4 acts as a force transmission component, generating power for subsequent components. Multiple support plates 5 are fixedly connected to the top of the mounting plate 2, providing fixed support points for the support plates 5. The multiple support plates 5 are arranged in a reasonable manner to enhance structural stability. A connecting rod 6 is rotatably connected inside each of the multiple support plates 5, providing rotation space and support for the connecting rod 6 to prevent shaking or displacement during operation.

[0033] Gears 7 are fixedly connected to the outer walls of both connecting rods 6, providing a mounting base for the gears 7 and ensuring their stability during rotation. Two circular plates 8 are fixedly connected to the left and right ends of each connecting rod 6, providing fixed connection points for the circular plates 8. The circular plates 8 rotate synchronously with the connecting rods 6, transmitting power to subsequent components. Transmission rods 9 are fixedly connected to the outer walls of multiple circular plates 8, providing mounting positions for the transmission rods 9. These fixed connections transmit the rotational motion of the circular plates 8 to the transmission rods 9. The outer wall of each of the moving rods 9 is rotatably connected to a transmission rod 10. The outer wall of the transmission rod 9 provides a pivot point for the transmission rod 10. The transmission rod 10 can swing through the hinge design. The top of each of the multiple transmission rods 10 is rotatably connected to a fixed plate 11. The top of the transmission rod 10 provides a pivot point for the fixed plate 11. The multiple transmission rods 10 work together to transmit their respective movements to the fixed plate 11, causing it to move up and down. The interior of the base 1 is equipped with a positioning component for positioning. The interior of the base 1 provides installation space and protection for the positioning component, ensuring its positioning accuracy and reliability.

[0034] Reference Figures 3 to 4 The positioning component includes a square box 12, inside which a motor 13 is fixedly connected. The inside of the square box 12 provides a rigid mounting base for the motor 13 to prevent shaking. The drive end of the motor 13 is fixedly connected to a circular plate 14. The motor 13 transmits rotational power to the circular plate 14 through the drive end, and then transmits the power to the subsequent components. The top of the circular plate 14 is rotatably connected to two connecting rods 15. The top of the circular plate 14 provides a rotation fulcrum for the connecting rods 15, converting rotational motion into linear motion. The other ends of the two connecting rods 15 are rotatably connected to a connecting plate 16. The other ends of the connecting rods 15 provide a rotation connection point for the connecting plate 16. When the connecting rods 15 move, they drive the connecting plate 16 to move. The top of the two connecting plates 16 is fixedly connected to a support rod 17. The top of the connecting plate 16 provides a fixed connection base for the support rod 17. When the connecting plate 16 moves, it drives the support rod 17 to move synchronously.

[0035] Reference Figures 2 to 4Each of the multiple support rods 17 has a fixed plate 18 fixedly connected to its top. The top of the support rods 17 provides a stable installation foundation for the fixed plate 18 and provides stable positioning support for the geomembrane underlayer. Multiple limiting rods 19 are fixedly connected inside the square box 12. The inside of the square box 12 provides rigid fixing points for the limiting rods 19, preventing the connecting plate 16 from shifting or shaking during movement and ensuring transmission stability. Two support plates 20 are fixedly connected to the top of the base 1. The top of the base 1 provides reliable installation support for the support plates 20, enhancing the overall stability and anti-overturning ability of the device. A roller 21 is rotatably connected to the top of the fixed plate 11. The top of the fixed plate 11 provides a rotation fulcrum for the roller 21, ensuring its stability and preventing shaking. To prevent displacement, rollers 22 are rotatably connected to the adjacent sides of the two fixed plates 18. The adjacent sides of the fixed plates 18 provide support and limit for the rollers 22 to prevent shaking or displacement during operation. The inner wall of the support plate 20 has a sliding groove, which provides a sliding track for the fixed plate 11 to prevent shaking or displacement during operation. The outer wall of the fixed plate 11 is slidably connected to the inner wall of the support plate 20. The inner wall of the support plate 20 and the outer wall of the fixed plate 11 form a sliding fit structure to prevent the fixed plate 11 from shaking or displacement during operation. The outer side of the support rod 17 is slidably connected to the inner wall of the square box 12. The inner wall of the square box 12 provides a sliding guide for the support rod 17 to prevent displacement or shaking.

[0036] The outer teeth of the two gears 7 are meshed with the outer teeth of the rack 4. The meshing structure of the gears 7 and rack 4 converts the linear motion of the cylinder 3 into the rotational motion of the gears 7. The bottom end of the fixed plate 18 is slidably connected to the top end of the square box 12. The top end of the square box 12 provides a sliding support surface for the fixed plate 18, ensuring the stability of the fixed plate 18 during positioning. The inner wall of the connecting plate 16 is slidably connected to the outer wall of the limiting rod 19. The outer wall of the limiting rod 19 provides a sliding constraint for the connecting plate 16, preventing tilting or jamming due to uneven force, and ensuring transmission accuracy. The bottom end of the connecting plate 16 is slidably connected to the inner wall of the square box 12. The inner wall of the square box 12 provides sliding support and guidance for the bottom end of the connecting plate 16. A sliding groove is provided at the top end of the square box 12. The sliding groove at the top end of the square box 12 provides a channel for the sliding of the fixed plate 18, allowing the fixed plate 18 to move smoothly along the sliding groove under the drive of the support rod 17, realizing the lateral positioning adjustment of the geomembrane.

[0037] Working principle: When lifting is required, the cylinder 3 on the top of the mounting plate 2 is activated. The drive end of the cylinder 3 drives the rack 4 to move linearly. The rack 4 meshes with the gears 7 fixed to the outer wall of the two connecting rods 6. When the gears 7 rotate, they drive the connecting rods 6 to rotate. The rotation of the connecting rods 6 drives the circular plates 8 at the left and right ends to rotate synchronously. The circular plates 8, through the transmission rods 9 fixed to the outer wall, cause the rotating transmission rods 10 to swing. The transmission rods 10 drive the fixed plate 11 at the top to move up and down, achieving the lifting effect.

[0038] When positioning of the geomembrane is required, the motor 13 fixed inside the square box 12 starts, driving the circular plate 14 connected to the drive end to rotate. The two connecting rods 15 connected to the top of the circular plate 14 then swing in a circular motion. The connecting rods 15 transmit the motion to the support rod 17 fixed to them through the connecting plate 16 connected to the other end. This causes the support rod 17 to drive the fixed plate 18 at the top to produce a linear displacement. During this process, multiple limiting rods 19 fixed inside the square box 12 constrain the movement trajectory of the connecting plate 16. Their inner walls slide in cooperation with the connecting plate 16, limiting the offset and shaking of the connecting plate 16. This ensures that the connecting plate 16 slides smoothly under the drive of the connecting rods 15, thereby allowing the fixed plate 18 to move accurately to the predetermined position, thus achieving the positioning of the geomembrane under membrane.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for positioning a lower membrane of a geotechnical membrane, comprising a base (1), characterised in that: The top of the base (1) is fixedly connected to a mounting plate (2), the top of the mounting plate (2) is fixedly connected to a cylinder (3), the drive end of the cylinder (3) is fixedly connected to a rack (4), the top of the mounting plate (2) is fixedly connected to multiple support plates (5), the interior of the multiple support plates (5) is rotatably connected to a connecting rod (6), the outer walls of the two connecting rods (6) are fixedly connected to gears (7), the left and right ends of the two connecting rods (6) are respectively fixedly connected to two circular plates (8), the outer walls of the multiple circular plates (8) are fixedly connected to a transmission rod (9), the outer walls of the multiple transmission rods (9) are rotatably connected to a transmission rod (10), the top of the multiple transmission rods (10) are rotatably connected to a fixing plate (11), and the interior of the base (1) is equipped with a positioning component for positioning.

2. The liftable geomembrane under membrane positioning device of claim 1, wherein: The positioning component includes a square box (12), a motor (13) is fixedly connected inside the square box (12), a circular plate (14) is fixedly connected to the drive end of the motor (13), two connecting rods (15) are rotatably connected to the top of the circular plate (14), a connecting plate (16) is rotatably connected to the other end of the two connecting rods (15), and a support rod (17) is fixedly connected to the top of the two connecting plates (16).

3. The liftable geomembrane under membrane positioning device of claim 2, wherein: The top of each of the multiple support rods (17) is fixedly connected to a fixing plate (18), and the inside of the square box (12) is fixedly connected to multiple limiting rods (19).

4. The liftable geomembrane under membrane positioning device of claim 3, wherein: The top of the base (1) is fixedly connected to two support plates (20), the top of the fixed plate (11) is rotatably connected to a roller (21), and the two fixed plates (18) are rotatably connected to rollers (22) on their adjacent sides.

5. The liftable geomembrane under membrane positioning device of claim 4, wherein: The inner wall of the second support plate (20) is provided with a sliding groove, and the outer wall of the first fixing plate (11) is slidably connected to the inner wall of the second support plate (20).

6. The liftable geomembrane under membrane positioning device of claim 2, wherein: The support rod (17) is externally slidably connected to the inner wall of the square box (12), and the external teeth of the two gears (7) are meshed with the external teeth of the rack (4).

7. The liftable geomembrane under membrane positioning device of claim 3, wherein: The bottom end of the fixing plate (18) is slidably connected to the top end of the square box (12), and the inner wall of the connecting plate (16) is slidably connected to the outer wall of the limiting rod (19).

8. The liftable geomembrane under membrane positioning device of claim 2, wherein: The bottom end of the connecting plate (16) is slidably connected to the inner wall of the square box (12), and the top end of the square box (12) is provided with a sliding groove.

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