A lower membrane device for flexible vertical cutoff wall construction

Abstract

The utility model relates to the technical field of flexible film under membrane, concretely relates to a film under device for flexible vertical diaphragm wall construction, include: support body, film under part, counterweight part, film under part the counterweight part is installed in support body, it is all with HDPE film cooperation uses, film under part contains film under pivot, position adjusting assembly, speed limiting assembly and stopper assembly, film under pivot with support body detachable connection is established with support body rotation setting, stopper assembly with speed limiting assembly set up between support body with film under pivot, and be used for adjusting the movement state of film under pivot, position adjusting assembly sets up above support body and penetrates film under pivot, with HDPE film contact is used for in along the position of adjusting HDPE film in first direction, the whole operation process can be according to actual need manual adjustment eliminates error to reduce the failure rate, further improved the efficiency of HDPE film installation.

Description

Technical Field

[0001] This utility model relates to the field of flexible membrane technology, specifically to a membrane installation device for the construction of flexible vertical cutoff walls. Background Technology

[0002] In my country's early construction of municipal solid waste landfills, industrial waste sites, and even hazardous waste landfills, inadequate standards and regulations meant that standard anti-seepage systems were often lacking, or these systems aged and deteriorated after closure, leading to leachate leakage that contaminated soil and groundwater, and consequently, the surrounding environment. In the remediation of contaminated sites, old landfills, and informal landfills, vertical anti-seepage technology is widely used to prevent secondary pollution. This technology involves vertically inserting anti-seepage structures into the impermeable underground layer around the site to effectively prevent the lateral diffusion of leachate, making it a key technology for in-situ remediation.

[0003] In vertical seepage control technology, flexible vertical seepage control technology is widely used due to its superior seepage resistance, good corrosion resistance, and high cost-effectiveness. However, the construction of flexible vertical seepage control technology in my country still faces certain difficulties. Because the main seepage control layer is made of flexible seepage control materials such as HDPE membranes, it is prone to accumulation, deformation, and displacement of the geomembrane during downward vertical installation, affecting the connection between the two membranes and thus seriously affecting the integrity and seepage control performance of the vertical seepage control structure. Currently, commonly used vertical seepage control membrane installation technologies typically use cranes to assist in lowering the membrane frame or different membrane lowering machines to install the geomembrane into the vertical installation trench. However, it is difficult for the membrane lowering frame to adapt to the installation depth of the vertical seepage control layer, and it also increases mechanical costs. The membrane lowering machine is prone to geomembrane accumulation or deformation during installation, and its operation is cumbersome, with low installation speed and cost-effectiveness. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a membrane installation device for flexible vertical cutoff wall construction, thereby simplifying the HDPE membrane installation process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a membrane installation device for the construction of flexible vertical cutoff walls, which is used in conjunction with HDPE membranes and includes: a support body, a membrane installation section, and a counterweight section. The lower membrane section and the counterweight section are installed on the support body, and both are used in conjunction with the HDPE membrane. The lower film section includes a lower film rotating shaft, a position adjustment component, a speed limiting component, and a limiting component. The lower film rotating shaft is detachably connected to the support body and is rotatably disposed with the support body. The limiting component and the speed limiting component are disposed between the support body and the lower film rotating shaft and are used to adjust the movement state of the lower film rotating shaft. The position adjustment component is disposed above the support body and passes through the lower film rotating shaft and is in contact with the HDPE film. It is used to adjust the position of the HDPE film along a first direction, wherein the first direction is parallel to the ground and perpendicular to the axis of the lower film rotating shaft.

[0006] In some embodiments, the limiting component includes an L-shaped steel tube and a steel semi-circular ring fixed to the support body, wherein the L-shaped steel tube is insertably inserted through the steel semi-circular ring and abuts against the lower membrane shaft.

[0007] In some embodiments, the speed limiting component includes an adjusting lever and a steel pressure block. The steel pressure block contacts the lower film rotating shaft, the adjusting lever is rotatably connected to the steel pressure block, and the adjusting lever is used to adjust the contact area between the steel pressure block and the lower film rotating shaft.

[0008] In some embodiments, the position adjustment assembly includes an adjustment handle, a connecting rod, and a central rotating shaft. The connecting rod is slidably disposed on the support body, and one end of the connecting rod is rotatably connected to the central rotating shaft. The outer circumferential surface of the connecting rod is provided with a threaded structure, and the other end of the connecting rod is engaged with a helical gear through the threaded structure. The helical gear is fixedly connected to the adjustment handle. The adjustment handle is rotatably disposed on the support body and drives the connecting rod to reciprocate along a first direction through the gear structure and the helical gear, thereby driving the central rotating shaft to reciprocate along the first direction. The HDPE film is connected to the counterweight part via a lower film rotating shaft, the central rotating shaft, and the counterweight part.

[0009] In some embodiments, the counterweight includes a connecting beam, a winch, a pulley, a cable, a counterweight block, and a lower counterweight beam; The connecting beam is located on one side of the support body, the pulley is located at the top of the connecting beam, the winch is located at the bottom of the connecting beam, the cable is slidably connected to the pulley via the winch and connected to the counterweight, the side of the counterweight away from the pulley is connected to the lower counterweight beam, and the lower counterweight beam is connected to the HDPE film.

[0010] In some embodiments, a material preparation component is further included. The material preparation component is separately disposed on one side of the support body. The material preparation component includes a material preparation reel, a reel support and a winding reduction motor. The material preparation reel is disposed on the reel support and the winding reduction motor is fixed to the side of the reel support and drivenly connected to the material preparation reel.

[0011] In some embodiments, the diameter of the material preparation roll is 1000-1500 mm and the length is 2-6 m, and the diameter of the lower film rotating shaft is 1000-1500 mm and the length is 2-6 m.

[0012] In some embodiments, the material preparation roll and the lower film rotating shaft are the same size.

[0013] In some embodiments, the center of the lower membrane rotating shaft is 1 to 2 meters from the ground.

[0014] In some embodiments, a power distribution cabinet is further included, which is connected to the lower membrane section and the counterweight section respectively, and is used to provide power support to the lower membrane section and the counterweight section.

[0015] Furthermore, the beneficial effects of this application are as follows: This utility model adds a position adjustment component, in which a gear structure and a helical gear are engaged, so that the user can drive the connecting rod to reciprocate by turning the adjustment handle, thereby driving the central rotating shaft to reciprocate, so as to correct the horizontal offset of the HDPE film in real time, ensuring that the HDPE film is always placed vertically and avoiding twisting. The overall operation process can be manually adjusted to eliminate errors as needed, thereby reducing the failure rate and further improving the efficiency of HDPE film installation.

[0016] In addition, the speed limiting component in this invention can provide adjustable friction through a steel pressure block, so that the lower film shaft rotates at a uniform speed, eliminating film accumulation caused by gravitational acceleration. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of the membrane installation device for flexible vertical anti-seepage wall construction provided by this utility model; Figure 2 A side view of the overall structure of the membrane installation device for flexible vertical cutoff wall construction provided by this utility model; Figure 3 This is a schematic diagram of the position adjustment component in the membrane installation device for flexible vertical cutoff wall construction provided by this utility model. Figure 4 A schematic diagram of the limiting component and the speed limiting component in the membrane device for flexible vertical seepage barrier construction provided by this utility model; Figure 5 This is a schematic diagram of the membrane preparation component in the membrane lowering device for flexible vertical seepage barrier construction provided by this utility model.

[0018] In the diagram: 1-Support body, 11-Lower film rotating shaft, 12-Connecting crossbeam, 2-Position adjustment component, 21-Central rotating shaft, 22-Adjusting handle, 23-Connecting rod, 3-Speed ​​limiting component, 31-Adjusting lever, 32-Steel pressure block, 4-HDPE film, 5-Counterweight block, 51-Lower counterweight crossbeam, 6-Pulley, 61-Cable, 62-Winding machine, 7-Distribution cabinet, 8-Limiting component, 81-Steel semi-circular ring, 82-L-shaped steel tube, 9-Roll support, 91-Preparation roll, 92-Rolling reduction motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 scope of protection of the present utility model. In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more. Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0020] like Figures 1-5 As shown, this utility model provides a membrane lowering device for the construction of a flexible vertical seepage barrier wall, which is used in conjunction with an HDPE membrane 4, and includes: a support body 1, a membrane lowering part, and a counterweight part; The lower membrane section and the counterweight section are installed on the support body 1, and both are used in conjunction with the HDPE membrane 4. The lower film section includes a lower film rotating shaft 11, a position adjustment component 2, a speed limiting component 3, and a limiting component 8. The lower film rotating shaft 11 is detachably connected to the support body 1 and is rotatably mounted with the support body 1. The limiting component 8 and the speed limiting component 3 are disposed between the support body 1 and the lower film rotating shaft 11 and are used to adjust the movement state of the lower film rotating shaft 11. The position adjustment component 2 is disposed above the support body 1 and passes through the lower film rotating shaft 11 and contacts the HDPE film 4. It is used to adjust the position of the HDPE film 4 along a first direction, wherein the first direction is parallel to the ground and perpendicular to the axis of the lower film rotating shaft 11.

[0021] This utility model adds a position adjustment component 2, in which a gear structure cooperates with a helical gear, so that the user can drive the connecting rod 23 to reciprocate by rotating the adjustment handle 22, thereby driving the central rotating shaft 21 to reciprocate, so as to realize the real-time correction of the horizontal offset of the HDPE film 4, ensuring that the HDPE film 4 is always placed vertically and avoiding twisting. The overall operation process can be manually adjusted to eliminate errors according to actual needs, thereby reducing the failure rate and further improving the installation efficiency of the HDPE film 4.

[0022] In addition, the speed limiting component 3 in this invention can provide adjustable friction through the steel pressure block 32, so that the lower membrane shaft 11 rotates at a uniform speed, eliminating membrane accumulation caused by gravitational acceleration.

[0023] It is worth noting that the HDPE membrane 4 in this utility model can also be other geomembranes. This application does not make specific limitations on this, and for ease of description, HDPE membrane 4 will be used in the following description.

[0024] In one possible implementation, the limiting component 8 includes an L-shaped steel tube 82 and a steel semi-circular ring 81 fixed to the support body 1. The L-shaped steel tube 82 can be inserted and removed through the steel semi-circular ring 81 and abuts against the lower film rotating shaft 11. When the HDPE film 4 reaches the specified lower film height, the position of the lower film rotating shaft 11 is fixed by inserting the L-shaped steel tube into the lower film rotating shaft 11 to facilitate subsequent operations.

[0025] In one possible implementation, the speed limiting component 3 includes an adjusting lever 31 and a steel pressure block 32. The steel pressure block 32 contacts the lower membrane rotating shaft 11. The adjusting lever 31 is rotatably connected to the steel pressure block 32, and the adjusting lever 31 is used to adjust the contact area between the steel pressure block 32 and the lower membrane rotating shaft 11. In the above structure, the user can manually adjust the speed of the lower membrane rotating shaft 11 to adapt to different soil friction coefficients and prevent wrinkles caused by the HDPE membrane 4 being lowered too quickly.

[0026] In one possible implementation, the position adjustment assembly 2 includes an adjustment handle 22, a connecting rod 23, and a central rotating shaft 21. The connecting rod 23 is slidably disposed on the support body 1. One end of the connecting rod 23 is rotatably connected to the central rotating shaft 21. The outer circumferential surface of the connecting rod 23 is provided with a threaded structure, and the other end is engaged with a helical gear through the threaded structure. The helical gear is fixedly connected to the adjustment handle 22. The adjustment handle 22 is rotatably disposed on the support body 1 and drives the connecting rod 23 to reciprocate along a first direction through the gear structure and the helical gear, thereby driving the central rotating shaft 21 to reciprocate along the first direction. The HDPE membrane 4 is connected to the counterweight via the lower membrane rotating shaft 11, the central rotating shaft 21, and the counterweight. When the HDPE membrane 4 deviates from its path, the adjustment handle 22 is rotated to drive the helical gear, which in turn drives the connecting rod 23 to move the central rotating shaft 21 horizontally, so that the membrane is accurately aligned with the seepage prevention trench.

[0027] In this embodiment, the connecting rod 23 can also be a worm gear. Through the cooperation of the worm gear and the helical gear, the circular motion of the adjusting handle 22 can be converted into the reciprocating linear motion of the connecting rod 23 or the worm gear. In addition, two bearings can be provided at the connection between the connecting rod 23 and the central rotating shaft 21. One bearing is sleeved on the central rotating shaft 21, and its inner ring is interference-fitted with the central rotating shaft 21. The outer ring of the other bearing is welded to the connecting rod 23, and its inner ring is interference-fitted with the connecting rod 23. Thus, the connecting rod 23 and the central rotating shaft 21 can rotate arbitrarily. Apart from the two bearings, other connecting parts are also within the scope of protection of this application, and this application does not make specific limitations on them.

[0028] In one possible implementation, the counterweight includes a connecting beam 12, a winch 62, a pulley 6, a cable 61, a counterweight block 5, and a lower counterweight beam 51. A connecting beam 12 is located on one side of the support body 1, a pulley 6 is located at the top of the connecting beam 12, and a winch 62 is located at the bottom of the connecting beam 12. A cable 61 is slidably connected to the pulley 6 via the winch 62 and connected to a counterweight 5. The side of the counterweight 5 away from the pulley 6 is connected to the lower counterweight beam 51, which is connected to the HDPE membrane 4. In this invention, the cable 61 is powered by the winch 62, the pulley 6 changes the running trajectory of the cable 61, and the lower membrane is counterweighted by the counterweight 5. By using a counterweight-pull method, the technical problems of easy deformation and displacement of flexible vertical geomembrane installation, the need for mechanical assistance, slow installation speed, and poor adaptability to vertical geomembranes of different depths are solved. The degree of automation is high, saving mechanical and labor costs.

[0029] In one possible implementation, a material preparation assembly is also included. The material preparation assembly is separately disposed on one side of the support body 1. The material preparation assembly includes a material preparation roll 91, a roll support 9, and a winding reduction motor 92. The material preparation roll 91 is disposed on the roll support 9, and the winding reduction motor 92 is fixed to the side of the roll support 9 and drivenly connected to the material preparation roll 91. In addition, the roll support 9 is a support for the material preparation roll 91 to wind up the HDPE film 4, with a height of 1 to 1.5 m and a length determined according to the length of the material preparation roll 91.

[0030] In one possible implementation, the diameter of the material preparation roll 91 is 1000-1500 mm and the length is 2-6 m, and the diameter of the film lowering shaft 11 is 1000-1500 mm and the length is 2-6 m. Using the above data ensures that the number of films meets the single feeding quantity, and the width of a single film can reach 2-6 m, with fewer seams, thereby greatly reducing the risk of leakage. In one possible implementation, the material preparation roll 91 and the lower film rotating shaft 11 are the same size. It is worth noting that the aforementioned material preparation roll 91 and the lower film rotating shaft 11 mentioned above are actually the same rotating shaft. However, when it is installed on the bracket body 1, it is the lower film rotating shaft 11, and when it is installed on the roll bracket 9, it is the material preparation roll 91.

[0031] In one possible implementation, the center of the lower membrane rotating shaft 11 is 1-2m above the ground. The 1-2m height above the ground takes into account both operational convenience and membrane tension, and avoids ground pollution and damage to the membrane material. However, this application does not specify the specific height.

[0032] The embodiments of this utility model will now be described in detail with reference to specific implementation methods: First, the staff must ensure that the site is ready for implementation. Then, the HDPE film 4 is wound onto the preparation roll 91 using the winding reduction motor 92 and the roll support 9. The preparation roll 91 is then moved onto the support body 1 and fixed using a crane or other machinery. It is worth noting that the aforementioned preparation roll 91 is actually the same roll as the lower film rotating shaft 11 mentioned above; it is called the lower film rotating shaft 11 when installed on the support body 1, and the preparation roll 91 when installed on the roll support 9. After the preparation roll 91 / lower film rotating shaft 11 is installed on the support body 1, the position adjustment component 2 is used to... The lowering path of HDPE membrane 4 is determined, and the winch 62 is started. The counterweight 5 is controlled to move downward synchronously with HDPE membrane 4 through pulley 6 and cable 61. After reaching the specified depth, the position of the lower membrane shaft 11 is fixed by the limiting component 8. After the HDPE membrane 4 is rolled and pressed to the bottom of the vertical geomembrane tank, it is manually unlocked. The winch 62 is started, and the counterweight 5 is controlled to return to the ground through pulley 6 and cable 61. The whole device is moved to the installation position of the next geomembrane, and the lower membrane shaft 11 is removed. The next material preparation roll is installed. The above operation is repeated to carry out the vertical installation of the next HDPE membrane 4.

[0033] One possible implementation method also includes a power distribution cabinet 7, which is connected to the lower membrane section and the counterweight section respectively, and is used to provide power support to the lower membrane section and the counterweight section. The power distribution cabinet 7 provides centralized power supply, avoids the tangling of cables of multiple devices, and improves on-site safety.

[0034] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A membrane installation device for flexible vertical cutoff wall construction, used in conjunction with an HDPE membrane, characterized in that, include: The stent body, the lower membrane section, and the counterweight section; The lower membrane section and the counterweight section are installed on the support body, and both are used in conjunction with the HDPE membrane. The lower film section includes a lower film rotating shaft, a position adjustment component, a speed limiting component, and a limiting component. The lower film rotating shaft is detachably connected to the support body and is rotatably disposed with the support body. The limiting component and the speed limiting component are disposed between the support body and the lower film rotating shaft and are used to adjust the movement state of the lower film rotating shaft. The position adjustment component is disposed above the support body and passes through the lower film rotating shaft and is in contact with the HDPE film. It is used to adjust the position of the HDPE film along a first direction, wherein the first direction is parallel to the ground and perpendicular to the axis of the lower film rotating shaft.

2. The membrane installation device for flexible vertical cutoff wall construction according to claim 1, characterized in that, The limiting component includes an L-shaped steel tube and a steel semi-circular ring fixed to the support body. The L-shaped steel tube can be inserted and removed through the steel semi-circular ring and abuts against the lower membrane shaft.

3. The membrane installation device for flexible vertical cutoff wall construction according to claim 1, characterized in that, The speed limiting component includes an adjusting lever and a steel pressure block. The steel pressure block is in contact with the lower film rotating shaft. The adjusting lever is rotatably connected to the steel pressure block, and the adjusting lever is used to adjust the contact area between the steel pressure block and the lower film rotating shaft.

4. The membrane installation device for flexible vertical cutoff wall construction according to claim 1, characterized in that, The position adjustment assembly includes an adjustment handle, a connecting rod, and a central rotating shaft. The connecting rod is slidably disposed on the support body. One end of the connecting rod is rotatably connected to the central rotating shaft. The outer circumferential surface of the connecting rod is provided with a threaded structure, and the other end is engaged with a helical gear through the threaded structure. The helical gear is fixedly connected to the adjustment handle. The adjustment handle is rotatably disposed on the support body and drives the connecting rod to reciprocate along a first direction through the gear structure and the helical gear, thereby driving the central rotating shaft to reciprocate along the first direction. The HDPE film is connected to the counterweight part via the lower film rotating shaft and the central rotating shaft.

5. The membrane installation device for flexible vertical cutoff wall construction according to claim 4, characterized in that, The counterweight unit includes a connecting beam, a winch, pulleys, cables, counterweight blocks, and a lower counterweight beam. The connecting beam is located on one side of the support body, the pulley is located at the top of the connecting beam, the winch is located at the bottom of the connecting beam, the cable is slidably connected to the pulley via the winch and connected to the counterweight, the side of the counterweight away from the pulley is connected to the lower counterweight beam, and the lower counterweight beam is connected to the HDPE film.

6. The membrane installation device for flexible vertical cutoff wall construction according to claim 5, characterized in that, It also includes a material preparation component, which is separately disposed on one side of the support body. The material preparation component includes a material preparation reel, a reel support and a winding reduction motor. The material preparation reel is disposed on the reel support and the winding reduction motor is fixed to the side of the reel support and drivenly connected to the material preparation reel.

7. The membrane installation device for flexible vertical cutoff wall construction according to claim 6, characterized in that, The diameter of the material preparation roll is 1000-1500mm and the length is 2-6m. The diameter of the lower film rotating shaft is 1000-1500mm and the length is 2-6m.

8. The membrane installation device for flexible vertical cutoff wall construction according to claim 7, characterized in that, The material preparation roll and the lower film rotating shaft are the same size.

9. The membrane installation device for flexible vertical cutoff wall construction according to claim 8, characterized in that, The center of the lower membrane rotating shaft is 1 to 2 meters from the ground.

10. The membrane installation device for flexible vertical cutoff wall construction according to claim 1, characterized in that, It also includes a power distribution cabinet, which is connected to the lower membrane section and the counterweight section respectively, and is used to provide power support to the lower membrane section and the counterweight section.

Images