Reservoir area impermeable geomembrane maintenance device

Abstract

The application provides a reservoir area anti-seepage geomembrane maintenance device, and belongs to the technical field of hydraulic engineering. The reservoir area anti-seepage geomembrane maintenance device comprises a base film adsorption assembly and a film delivery assembly. A vacuum box is connected with an external vacuum pipeline to adsorb the geomembrane. At this time, the cylinder is lifted to lift the geomembrane on both sides of the crack. In the lifting process, the bottom of the geomembrane is separated from the supporting layer, and the wrinkles of the original geomembrane are absorbed. Until the area of the geomembrane that needs to be repaired is flat, the contact between the welding area of the geomembrane and the residual seepage of the supporting layer is reduced, the supporting layer does not need to be dried for a long time, and the repair period of the geomembrane in the reservoir area is reduced. During the welding process of the geomembrane, a certain high temperature is generated. The residual water vapor between the geomembrane and the supporting layer evaporates and condenses on the geomembrane. The area of the geomembrane that needs to be repaired is lifted by vacuum adsorption, which can reduce the flow of condensed water droplets to the crack and to the welding area, reduce the water splash phenomenon during the welding of the geomembrane, and improve the quality of the repaired weld.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water conservancy projects, in particular to a geomembrane maintenance device for reservoir area seepage prevention. BACKGROUND

[0002] The geomembrane seepage prevention technology is mainly applied to the seepage prevention performance of dam projects, and is particularly suitable for reservoir seepage prevention reinforcement projects. When the geomembrane is damaged, seepage occurs in the dam body of the reservoir area, and due to the high water level of the reservoir, the pressure at the seepage gap is very high, which will cause greater impact force on the crack, and over time, larger cracks will be formed, and even gushing phenomenon will occur. In addition, the seepage water will enter the concrete structure of the dam body, and if there are honeycomb voids in the concrete structure of the dam body, the water will invade the dam body structure, causing corrosion of the concrete structure, especially in places with low air temperature, the seepage water will freeze into ice, causing more serious damage to the dam body concrete, and the geomembrane needs to be repaired in time.

[0003] However, after the geomembrane is broken or torn, the seepage water will quickly spread to the interlayer between the geomembrane and the dam foundation layer. Before the existing geomembrane is repaired, the seepage water in the damaged surrounding interlayer needs to be cleaned and dried to reduce the occurrence of welding pores during the welding of the geomembrane. However, the high temperature generated during the welding process will cause the evaporation of residual water in the interlayer, and the water will condense along the geomembrane damage and extrude out, which will damage the quality of the repaired weld. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a geomembrane maintenance device for reservoir area seepage prevention, which can lift and vacuum adsorb the repaired geomembrane, and feed the patch geomembrane.

[0005] The present application is implemented as follows:

[0006] The present application provides a geomembrane maintenance device for reservoir area seepage prevention, which comprises a base film adsorption assembly and a film coating delivery assembly.

[0007] The base film adsorption assembly comprises a maintenance frame, a lifting cylinder, a vacuum box and a lifting pulley. The cylinder body of the lifting cylinder is uniformly arranged on the maintenance frame. The vacuum box is arranged at one end of the piston rod of the lifting cylinder. The vacuum box is connected to the external vacuum pipeline. The lifting pulley is rotatably connected in the vacuum box. The lifting pulley faces the atmosphere. The film coating delivery assembly comprises a support frame, a balance cylinder, a material positioning shaft and a feeding frame. The support frame is rotatably connected to the maintenance frame. The cylinder body of the balance cylinder is rotatably connected to the maintenance frame. One end of the piston rod of the balance cylinder is rotatably connected to the support frame. The material positioning shaft is rotatably connected to the support frame. The feeding frame is suspended on the maintenance frame. The material positioning shaft faces the feeding frame.

[0008] In one embodiment of the present application, the lower end of the support frame is rotatably provided with a load wheel, and the lower end of the support frame is provided with a load motor, and the output end of the load motor is in transmission with the load wheel.

[0009] In one embodiment of the present application, one end of the fixed material shaft is sleeved with a fixed winding core, the upper end of the support frame is rotatably provided with a feeding shaft, the feeding shaft is slidably sleeved with a limiting winding core, the surface of the feeding shaft is sleeved with a limiting spring, one end of the limiting spring is attached to the support frame, and the other end of the limiting spring is attached to the limiting winding core.

[0010] In one embodiment of the present application, the feeding motor is arranged on the support frame, the output end of the feeding motor is fixed with a first gear, and one end of the feeding shaft is fixed with a second gear, and the first gear is engaged with the second gear.

[0011] In one embodiment of the present application, the cylinder body of the balance cylinder is rotatably provided with a first support, and the first support is fixed on the maintenance frame.

[0012] In one embodiment of the present application, one end of the piston rod of the balance cylinder is rotatably provided with a second support, and the second support is fixed on the support frame.

[0013] In one embodiment of the present application, the vacuum box is communicated with a vacuum connector, the vacuum connector is communicated with an external vacuum pipeline, the vacuum box is uniformly provided with suction ports, and the lifting pulley penetrates the suction ports.

[0014] In one embodiment of the present application, the feeding frame is provided with a sliding material disc, and the sliding material disc faces the feeding frame.

[0015] In one embodiment of the present application, the cylinder body of the lifting cylinder is provided with a connecting plate, the connecting plate is fixed on the maintenance frame, one end of the piston rod of the lifting cylinder is provided with a connecting seat, and the connecting seat is fixed on the vacuum box.

[0016] In one embodiment of the present application, the connecting seat is provided with a lifting rod, the connecting plate is provided with a lifting sleeve, and the lifting rod slidably penetrates the lifting sleeve.

[0017] In one embodiment of the present application, the reservoir area anti-seepage geomembrane maintenance device further comprises a base film repair assembly, a film covering welding assembly and a film covering edge cutting assembly.

[0018] The base film repair assembly comprises a stabilizing frame, a first damper, an edge adapting frame, a second damper and a pressure roller shaft, the stabilizing frame is rotationally connected to the maintenance frame, one end of the first damper is rotationally connected to the maintenance frame, the other end of the first damper is rotationally connected to the stabilizing frame, the edge adapting frame is rotationally connected to the stabilizing frame, one end of the second damper is rotationally connected to the stabilizing frame, the other end of the second damper is rotationally connected to one end of the edge adapting frame, the pressure roller shaft is rotationally connected between the other end of the edge adapting frame, the film welding assembly comprises a first rodless cylinder, a gantry, a second rodless cylinder, a third rodless cylinder, a rotary motor, a welding pad, a pressure cylinder and a pressure strip, the cylinder body of the first rodless cylinder is arranged on the maintenance frame, the gantry is arranged on the moving table of the first rodless cylinder, the cylinder body of the second rodless cylinder is arranged on the gantry, the cylinder body of the third rodless cylinder is arranged on the moving table of the second rodless cylinder, the body of the rotary motor is arranged on the moving table of the third rodless cylinder, the welding pad is fixed to the output end of the rotary motor, the cylinder body of the pressure cylinder is arranged on the feeding frame, the pressure strip is arranged on one end of the piston rod of the pressure cylinder, and the pressure strip faces the feeding frame, the film edge cutting assembly comprises a lifting cylinder, a vacuum chuck, an edge cutting seat, an edge cutting cylinder, an edge cutting knife, an edge cutting motor and an edge cutting belt, the cylinder body of the lifting cylinder is arranged on the gantry, the vacuum chucks are uniformly arranged between one end of the piston rod of the lifting cylinder, the vacuum chucks are connected to the external vacuum pipeline, the edge cutting seat slides on the surface of the feeding frame, the cylinder body of the edge cutting cylinder is arranged on the edge cutting seat, the edge cutting knife is arranged on one end of the piston rod of the edge cutting cylinder, the edge cutting knife faces the feeding frame, the body of the edge cutting motor is arranged on the feeding frame, and the edge cutting belt is wound around the output end of the edge cutting motor and the feeding frame respectively.

[0019] In an embodiment of the present application, the first guide rail is arranged on the maintenance frame, the gantry slides on the surface of the first guide rail, and the second guide rail is arranged on the gantry, and the cylinder body of the second rodless cylinder slides on the surface of the second guide rail.

[0020] In an embodiment of the present application, the pulley is rotationally arranged on the feeding frame, one of the pulleys is driven by the output end of the edge cutting motor, and the edge cutting belt is wound around the surface of the pulley.

[0021] In an embodiment of the present application, the distribution plate is fixed to one end of the piston rod of the lifting cylinder, and the vacuum chucks are uniformly fixed to the distribution plate.

[0022] The beneficial effects of the present application are: the reservoir area anti-seepage geomembrane maintenance device obtained by the above design can determine the area of the anti-seepage geomembrane that leaks according to the water volume change in the reservoir area drainage pipe, excavate the protection layer after the reservoir quantitative drainage, expose the laid anti-seepage geomembrane, and perform the corresponding leakage and damage detection according to the type of the geomembrane, and fill and round the corner passivation of the support layer water seepage damage. The maintenance device is moved to the top of the geomembrane crack by the load wheel, and the orientation of the maintenance device is adjusted by the load motor, so that it is arranged vertically along the dam slope.

[0023] The angle between the support frame and the maintenance frame is adjusted by the balance cylinder, so that the maintenance frame is flush with the dam slope where the geomembrane crack is located, and the maintenance frame falls towards the surface of the geomembrane. The cylinder control vacuum box falls to the surface of the geomembrane, and the vacuum box is connected to the external vacuum pipeline to adsorb the geomembrane. At this time, the geomembrane on both sides of the crack is lifted by the cylinder, and the bottom of the geomembrane is separated from the support layer during the lifting process, and absorbs the wrinkles of the original geomembrane, until the area of the geomembrane that needs to be repaired is flat, reducing the contact between the welding area of the geomembrane and the residual water seepage of the support layer, and reducing the time for drying the support layer, reducing the repair period of the geomembrane in the reservoir area. The welding process of the geomembrane will produce a certain high temperature, and the evaporation of the residual water vapor between the geomembrane and the support layer will condense on the geomembrane. The area of the geomembrane that needs to be repaired can be lifted by vacuum adsorption, which can reduce the flow of condensed water droplets to the crack and to the welding area, reduce the water splash phenomenon during the welding of the geomembrane, and improve the quality of the repaired weld. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Figure 1 is a schematic diagram of the three-dimensional structure of the reservoir area anti-seepage geomembrane maintenance device provided by the embodiments of the present application;

[0026] Figure 2 is a schematic diagram of the three-dimensional structure of the base film adsorption assembly provided by the embodiments of the present application;

[0027] Figure 3 is a schematic diagram of the three-dimensional structure of the film covering delivery assembly provided by the embodiments of the present application;

[0028] Figure 4 is a schematic diagram of the three-dimensional structure of the base film repair assembly provided by the embodiments of the present application;

[0029] Figure 5A schematic diagram of a three-dimensional structure of a film welding assembly is provided for the embodiment of the present application.

[0030] Figure 6 A schematic diagram of a three-dimensional structure of a film trimming assembly is provided for the embodiment of the present application.

[0031] In the figure: 100 - base film adsorption assembly; 110 - maintenance frame; 111 - first guide rail; 120 - lifting cylinder; 121 - connecting plate; 122 - connecting seat; 123 - lifting rod; 124 - lifting sleeve; 130 - vacuum box; 131 - vacuum joint; 132 - suction port; 140 - lifting pulley; 300 - film delivery assembly; 310 - support frame; 311 - load wheel; 312 - load motor; 313 - feeding shaft; 314 - limiting core; 315 - limiting spring; 316 - feeding motor; 317 - first gear; 318 - second gear; 320 - balance cylinder; 321 - first support; 322 - second support; 330 - fixed material shaft; 331 - fixed core; 340 - feeding frame; 341 - sliding material disc; 342 - pulley; 500 - base film repair assembly; 510 - stabilizing frame; 520 - first damper; 530 - edge fitting frame; 540 - second damper; 550 - edge roller shaft; 700 - film welding assembly; 710 - first rodless cylinder; 720 - gantry frame; 721 - second guide rail; 730 - second rodless cylinder; 740 - third rodless cylinder; 750 - rotary motor; 760 - welding pad; 770 - edge pressing cylinder; 780 - edge pressing strip; 900 - film trimming assembly; 910 - lifting cylinder; 911 - distribution plate; 920 - vacuum chuck; 930 - trimming seat; 940 - trimming cylinder; 950 - trimming knife; 960 - trimming motor; 970 - trimming belt. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0034] EMBODIMENT

[0035] As Figures 1-6As shown, the reservoir area geomembrane maintenance device according to the embodiment of the application comprises a base film adsorption assembly 100, a film delivery assembly 300, a base film repair assembly 500, a film welding assembly 700 and a film trimming assembly 900. The film delivery assembly 300 is installed on the side of the base film adsorption assembly 100, the base film repair assembly 500 is installed on the side of the base film adsorption assembly 100, the film welding assembly 700 is installed in the base film adsorption assembly 100, and the film trimming assembly 900 is installed in the base film adsorption assembly 100. The base film adsorption assembly 100 lifts and vacuum-adsorbs the repaired geomembrane; the film delivery assembly 300 feeds the patch geomembrane; the base film repair assembly 500 compacts the geomembrane around the crack and improves the stability of the device on the dam slope; the film welding assembly 700 precisely welds the geomembrane; and the film trimming assembly 900 lays and cuts the patch geomembrane.

[0036] As shown, Figures 2-6 After the geomembrane is broken or torn, water seeps into the interlayer between the geomembrane and the dam foundation layer. Before the existing geomembrane is repaired, the interlayer seepage water around the damage needs to be cleaned and dried to reduce the phenomenon of water blasting and splashing during the welding of the geomembrane, which may cause pores in the weld. However, the high temperature generated during the welding process will cause the residual water in the interlayer to evaporate, and the water will condense along the geomembrane damage and flow out, which will damage the quality of the repair weld.

[0037] The base film adsorption assembly 100 comprises a maintenance frame 110, a lifting cylinder 120, a vacuum box 130 and a lifting pulley 140. The lifting cylinder 120 is uniformly arranged on the maintenance frame 110, and the lifting cylinder 120 is provided with a connecting plate 121 fixed to the maintenance frame 110 and bolted to the lifting cylinder 120 and the maintenance frame 110. The vacuum box 130 is arranged at one end of the piston rod of the lifting cylinder 120, and the piston rod of the lifting cylinder 120 is provided with a connecting seat 122 fixed to the vacuum box 130 and bolted to the lifting cylinder 120 and the vacuum box 130. The vacuum box 130 is connected to an external vacuum pipeline, the lifting pulley 140 is rotatably connected to the vacuum box 130, and the lifting pulley 140 is connected to the bearing of the vacuum box 130. The vacuum box 130 is uniformly provided with suction ports 132, and the lifting pulley 140 penetrates the suction ports 132. The lifting pulley 140 is directed to the outside atmosphere, and the vacuum box 130 is provided with a vacuum connector 131 connected to an external vacuum pipeline.

[0038] The connecting seat 122 is provided with a lifting rod 123 threadedly connected to the connecting seat 122. The connecting plate 121 is provided with a lifting sleeve 124 bolted to the connecting plate 121. The lifting rod 123 slidably penetrates the lifting sleeve 124, thereby increasing the lifting accuracy of the vacuum box 130.

[0039] The film-coating delivery assembly 300 includes a support frame 310, a balance cylinder 320, a fixed material shaft 330, and a feeding frame 340. The support frame 310 is rotatably connected to the maintenance frame 110, and the support frame 310 is pin-connected to the maintenance frame 110. The balance cylinder 320 is rotatably connected to the maintenance frame 110, and a first support 321 is rotatably mounted on the cylinder body. The first support 321 is pin-connected to the balance cylinder 320, fixed to the maintenance frame 110, and welded to the maintenance frame 110. One end of the piston rod of the balance cylinder 320 is rotatably connected to the support frame 310.

[0040] A second support 322 is rotatably mounted on one end of the piston rod of the balance cylinder 320, and the second support 322 is connected to the balance cylinder 320 by a pin. The second support 322 is fixed to the support frame 310 and welded to the support frame 310. A load wheel 311 is rotatably mounted on the lower end of the support frame 310, and the load wheel 311 is connected to the support frame 310 by a bearing. A load motor 312 is mounted on the lower end of the support frame 310 and bolted to the support frame 310. The output end of the load motor 312 drives the load wheel 311, and the load motor 312 is keyed to the load wheel 311. A fixed material shaft 330 is rotatably connected to the support frame 310 and is connected to the bearing seat of the support frame 310. A fixed core 331 is fixedly sleeved on one end of the fixed material shaft 330, and the fixed core 331 is keyed to the fixed material shaft 330. A feeding shaft 313 is rotatably mounted on the support frame 310, and the feeding shaft 313 is connected to the bearing seat of the support frame 310. A limiting core 314 is slidably sleeved on the feeding shaft 313, and a limiting spring 315 is sleeved on the surface of the feeding shaft 313. One end of the limiting spring 315 is attached to the support frame 310, and the other end of the limiting spring 315 is attached to the limiting core 314, which facilitates the installation of repair geomembrane rolls.

[0041] The support frame 310 is equipped with a feeding motor 316, which is bolted to the support frame 310. A first gear 317 is fixed to the output end of the feeding motor 316, and the first gear 317 is keyed to the feeding motor 316. A second gear 318 is fixed to one end of the feeding shaft 313, and the second gear 318 is keyed to the feeding shaft 313. The first gear 317 meshes with the second gear 318. The feeding frame 340 is suspended on the maintenance frame 110, and the maintenance frame 110 is bolted to the feeding frame 340. The fixed material shaft 330 faces the feeding frame 340, and a sliding material disc 341 is provided on the feeding frame 340, which is bolted to the feeding frame 340. The sliding material disc 341 faces the feeding frame 340 to facilitate the sliding of the geomembrane.

[0042] The area of the impermeable geomembrane where leakage occurs is determined according to the water quantity change in the drainage pipe in the reservoir area. After quantitative drainage of the reservoir, the protection layer is excavated, the laid impermeable geomembrane is exposed, and the leakage and damage detection is carried out according to the type of the geomembrane, and the water seepage damage of the supporting layer is filled and the edges are rounded and passivated. The inspection device is moved to above the geomembrane crack by the load wheel 311, and the position of the inspection device is adjusted by the load motor 312, so that the inspection device is arranged vertically along the dam slope.

[0043] The angle between the support frame 310 and the inspection frame 110 is adjusted by the balance cylinder 320, so that the inspection frame 110 is flush with the dam slope where the geomembrane crack is located, and the inspection frame 110 falls towards the surface of the geomembrane. The vacuum box 130 is controlled by the lifting cylinder 120 to fall to the surface of the geomembrane, and the vacuum box 130 is connected to the external vacuum pipeline to adsorb the geomembrane. At this time, the geomembrane on both sides of the crack is lifted by the lifting cylinder 120, and the bottom of the geomembrane is separated from the supporting layer during the lifting process, and absorbs the wrinkles of the original geomembrane, until the area of the geomembrane to be repaired is flat, reducing the contact between the welded area of the geomembrane and the residual water seepage of the supporting layer, and there is no need to dry the supporting layer for a long time, reducing the repair period of the geomembrane in the reservoir area. A certain high temperature is generated during the welding process of the geomembrane, and the residual water vapor between the geomembrane and the supporting layer evaporates and condenses on the geomembrane. The area of the geomembrane to be repaired is lifted by vacuum adsorption, which can reduce the flow of condensed water droplets to the crack and to the welding area, reduce the water splash phenomenon during the welding of the geomembrane, and improve the quality of the repaired weld.

[0044] The base film repair assembly 500 includes a stabilizing frame 510, a first damper 520, an edge fitting frame 530, a second damper 540, and a pressure edge roller shaft 550. The stabilizing frame 510 is rotationally connected to the inspection frame 110, and the inspection frame 110 is pin-connected to the stabilizing frame 510. One end of the first damper 520 is rotationally connected to the inspection frame 110, and the inspection frame 110 is pin-connected to the first damper 520. The other end of the first damper 520 is rotationally connected to the stabilizing frame 510, and the first damper 520 is pin-connected to the stabilizing frame 510. The edge fitting frame 530 is rotationally connected to the stabilizing frame 510, and the stabilizing frame 510 is pin-connected to the edge fitting frame 530. One end of the second damper 540 is rotationally connected to the stabilizing frame 510, and the second damper 540 is pin-connected to the stabilizing frame 510. The other end of the second damper 540 is rotationally connected to one end of the edge fitting frame 530, and the second damper 540 is pin-connected to the edge fitting frame 530. The pressure edge roller shaft 550 is rotationally connected between the other end of the edge fitting frame 530, and the pressure edge roller shaft 550 is pin-connected to the edge fitting frame 530.

[0045] The suspended welding of the geomembrane requires the flatness of the geomembrane in the welding area to be ensured. The partial compression of the geomembrane around the crack by the load wheel 311, the falling of the edge roller shaft 550 to the surface of the geomembrane under the action of gravity, the compression of the remaining geomembrane around the crack, and the lifting and leveling of the repaired geomembrane by the vacuum box 130 are facilitated. Under the action of the first damper 520 and the second damper 540, the edge roller shaft 550 will adapt to the terrain of the dam slope stably, reducing the extrusion damage to the geomembrane. When the inspection frame 110 needs to move quickly, the height of the inspection frame 110 is adjusted by the balance cylinder 320, the edge roller shaft 550 is suspended by the limiting of the damper, and the transfer efficiency of the inspection device is improved.

[0046] The film welding assembly 700 includes a first rodless cylinder 710, a gantry 720, a second rodless cylinder 730, a third rodless cylinder 740, a rotary motor 750, a welding pad 760, an edge compression cylinder 770, and an edge compression strip 780. The first rodless cylinder 710 is arranged on the inspection frame 110, and the first rodless cylinder 710 is bolted to the inspection frame 110. The gantry 720 is arranged on the moving table of the first rodless cylinder 710, and the gantry 720 is bolted to the first rodless cylinder 710. The first guide rail 111 is arranged on the inspection frame 110, and the first guide rail 111 is bolted to the inspection frame 110. The gantry 720 slides on the surface of the first guide rail 111, increasing the sliding stability and support strength of the gantry 720. The second rodless cylinder 730 is arranged on the gantry 720, and the second rodless cylinder 730 is bolted to the gantry 720. The third rodless cylinder 740 is arranged on the moving table of the second rodless cylinder 730, and the third rodless cylinder 740 is bolted to the second rodless cylinder 730. The second guide rail 721 is arranged on the gantry 720, and the second guide rail 721 is bolted to the gantry 720. The cylinder body of the second rodless cylinder 730 slides on the surface of the second guide rail 721, increasing the sliding stability and support strength of the third rodless cylinder 740.

[0047] The rotary motor 750 is arranged on the moving table of the third rodless cylinder 740, and the third rodless cylinder 740 is bolted to the rotary motor 750. The welding pad 760 is fixed to the output end of the rotary motor 750, and the welding pad 760 is keyed connected to the rotary motor 750. The welding pad 760 is provided with welding machines of different specifications. The edge compression cylinder 770 is arranged on the feeding frame 340, and the feeding frame 340 is bolted to the edge compression cylinder 770. The edge compression strip 780 is arranged at one end of the piston rod of the edge compression cylinder 770, and the edge compression cylinder 770 is bolted to the edge compression strip 780. The edge compression strip 780 faces the feeding frame 340 and compresses the repaired geomembrane.

[0048] The film cutting and trimming assembly 900 comprises a lifting cylinder 910, vacuum suction cups 920, a trimming seat 930, a trimming cylinder 940, a trimming cutter 950, a trimming motor 960 and a trimming belt 970. The cylinder body of the lifting cylinder 910 is arranged on the gantry 720, and the gantry 720 is bolted to the lifting cylinder 910. The vacuum suction cups 920 are uniformly arranged between the one end of the piston rod of the lifting cylinder 910, and the distribution plate 911 is fixed to the one end of the piston rod of the lifting cylinder 910. The distribution plate 911 is bolted to the lifting cylinder 910. The vacuum suction cups 920 are uniformly fixed to the distribution plate 911, and the vacuum suction cups 920 are screwed to the distribution plate 911. The vacuum suction cups 920 are connected to the external vacuum pipeline, and the trimming seat 930 slides on the surface of the feeding frame 340. The cylinder body of the trimming cylinder 940 is arranged on the trimming seat 930, and the trimming seat 930 is bolted to the trimming cylinder 940. The trimming cutter 950 is arranged on the one end of the piston rod of the trimming cylinder 940, and the trimming cutter 950 is bolted to the trimming cylinder 940. The trimming cutter 950 faces the feeding frame 340, and a groove is formed in the feeding frame 340, which facilitates the trimming cutter 950 to cut the repaired geomembrane. The body of the trimming motor 960 is arranged on the feeding frame 340.

[0049] The feeding frame 340 is rotatably provided with a belt pulley 342, and the belt pulley 342 is bearing-connected to the feeding frame 340. The output end of the trimming motor 960 is transmission-connected to one of the belt pulleys 342, and the belt pulley 342 is key-connected to the trimming motor 960. The trimming belt 970 is wound around the output end of the trimming motor 960 and the feeding frame 340 respectively, and the trimming belt 970 is wound around the surface of the belt pulley 342. The trimming seat 930 is fixed to the trimming belt 970, and the trimming seat 930 is bolted to the trimming belt 970 through the wave plate.

[0050] The reservoir area has the characteristics of large water pressure. When the geomembrane appears a crack, long-term leakage and extrusion will cause plastic fracture deformation of the geomembrane near the crack, shorten the service life, and need to re-patch and repair. The clamping mechanism composed of the fixed winding core 331, the limiting winding core 314 and the limiting spring 315 is used to install the patch geomembrane rolls of different specifications. One end of the geomembrane roll is introduced into the sliding disc 341, and the geomembrane roll is rotated for feeding by the feeding motor 316 until one end of the geomembrane roll slides into the feeding frame 340. At this time, the lifting cylinder 910 drives the vacuum chuck 920 to fall, the vacuum chuck 920 is connected with the external vacuum pipeline to adsorb one end of the patch geomembrane, and the first rodless cylinder 710 is used to pull and expand the patch geomembrane until the patch geomembrane covers the side of the suspended geomembrane crack. The patch geomembrane should cover at least 15 cm beyond the edge of the defect. When the patch geomembrane needs to be cut off, the edge pressing cylinder 770 is used to control the edge pressing strip 780 to fall and press the patch geomembrane on the feeding frame 340. The edge cutting cylinder 940 is used to control the edge cutting knife 950 to fall into the groove on the feeding frame 340, and the edge cutting motor 960 is used to control the edge cutting knife 950 to cut the patch geomembrane transversely. The feeding motor 316 can also wind the geomembrane roll, realize automatic laying of the maintenance device, and reduce the leakage maintenance period of the reservoir.

[0051] The vacuum suspended welding of the geomembrane needs to keep the solder stable. The edge pressing cylinder 770 is used to control the edge pressing strip 780 to fall and press the patch geomembrane on the feeding frame 340, reduce the movement between the patch geomembrane and the repaired geomembrane, and the welding gun of different specifications is arranged on the welding pad 760. The first rodless cylinder 710, the second rodless cylinder 730 and the third rodless cylinder 740 are used to control the movement of the welding gun, and the rotary motor 750 is used to adjust the welding angle of the welding gun. The welding gun is accurately applied to the upper patch geomembrane surface to reduce the thermal fusion fracture of the lower geomembrane caused by high-temperature welding. The upper patch geomembrane is thermally fused and connected to the lower geomembrane. For the geomembrane repair with many cracks, well-pattern welding can be performed on the surface of the patch geomembrane. The accurate repair of the reservoir area anti-seepage geomembrane is realized. The overall movement of the maintenance device is controlled by the load motor 312, the lower geomembrane is slid and adsorbed by the lifting pulley 140, and the edge is rolled by the edge roller shaft 550. The continuous welding and repair of the patch geomembrane are realized, and the period of reservoir area anti-seepage repair is reduced.

[0052] Specifically, the working principle of the reservoir area anti-seepage geomembrane maintenance device is as follows: according to the water quantity change in the reservoir drainage pipe, the area where the anti-seepage geomembrane leaks is determined. After the reservoir is quantitatively drained, the protection layer is excavated to expose the laid anti-seepage geomembrane. According to the type of the geomembrane, the corresponding leakage and damage detection is performed, and the support layer is filled and the corner is rounded and passivated. The maintenance device moves to the upper part of the geomembrane crack through the load wheel 311, and the orientation of the maintenance device is adjusted through the load motor 312, so that the maintenance device is arranged vertically along the dam slope.

[0053] The balance cylinder 320 adjusts the included angle between the support frame 310 and the maintenance frame 110, so that the maintenance frame 110 is flush with the dam slope where the geomembrane crack is located, and the maintenance frame 110 falls towards the geomembrane surface. The lifting cylinder 120 controls the vacuum box 130 to fall to the geomembrane surface, and the vacuum box 130 is connected to the external vacuum pipeline to adsorb the geomembrane. At this time, the lifting cylinder 120 lifts the geomembrane on both sides of the crack, and the bottom of the geomembrane is separated from the support layer during the lifting process, and absorbs the wrinkles of the original geomembrane, until the area of the geomembrane to be repaired is flat, reducing the contact between the welding area of the geomembrane and the residual water of the support layer. There is no need to dry the support layer for a long time, reducing the repair period of the geomembrane in the reservoir area. The welding process of the geomembrane will produce a certain high temperature, and the evaporation of residual water vapor between the geomembrane and the support layer will condense on the geomembrane. The vacuum adsorption of the raised repair area of the geomembrane can reduce the condensation of water droplets flowing to the crack and flowing to the welding area, reduce the water blasting phenomenon during the welding process of the geomembrane, and improve the quality of the repair weld.

[0054] Further, the suspended welding of the geomembrane requires that the flatness of the geomembrane in the welding area be guaranteed. The partial compression of the geomembrane around the crack by the load wheel 311, and the compression of the remaining geomembrane around the crack by the edge roller shaft 550 under the action of gravity, facilitate the lifting and flattening of the repair geomembrane by the vacuum box 130. Under the action of the first damper 520 and the second damper 540, the edge roller shaft 550 will adapt to the terrain of the dam slope stably, reducing the extrusion damage to the geomembrane. When the maintenance frame 110 needs to move quickly, the height of the maintenance frame 110 is adjusted by the balance cylinder 320, and the limit of the damper will suspend the edge roller shaft 550, improving the transfer efficiency of the maintenance device.

[0055] In addition, the reservoir area has the characteristics of high water pressure. When the geomembrane appears a crack, long-term leakage extrusion will cause the plastic fracture deformation of the geomembrane near the crack, shorten the service life, and need to re-patch and repair. The clamping mechanism composed of the fixed winding core 331, the limiting winding core 314 and the limiting spring 315 is used to install the patch geomembrane roll of different specifications. One end of the geomembrane roll is introduced into the sliding material disc 341, and the geomembrane roll is rotated for feeding by the feeding motor 316 until one end of the geomembrane roll slides into the feeding frame 340. At this time, the lifting cylinder 910 drives the vacuum chuck 920 to fall, the vacuum chuck 920 is connected with the external vacuum pipeline to adsorb one end of the patch geomembrane, and the first rodless cylinder 710 is used to pull and expand the patch geomembrane until the patch geomembrane covers the side of the suspended geomembrane around the crack. The patch geomembrane should cover at least 15 cm beyond the edge of the defect. When the patch geomembrane needs to be cut off, the edge pressing cylinder 770 is used to control the edge pressing strip 780 to fall and press the patch geomembrane on the feeding frame 340. The edge cutting cylinder 940 is used to control the edge cutting knife 950 to fall into the groove on the feeding frame 340. The edge cutting motor 960 is used to control the edge cutting knife 950 to cut the patch geomembrane transversely. The feeding motor 316 can also complete the winding of the geomembrane roll, realize the automatic laying of the maintenance device, and reduce the leakage repair period of the reservoir.

[0056] The vacuum suspended welding of the geomembrane needs to keep the stability of the solder. The edge pressing cylinder 770 is used to control the edge pressing strip 780 to fall and press the patch geomembrane on the feeding frame 340, so as to reduce the movement between the patch geomembrane and the repaired geomembrane. Different specifications of welding guns are arranged on the welding pad 760. The first rodless cylinder 710, the second rodless cylinder 730 and the third rodless cylinder 740 are used to control the movement of the welding gun. The rotary motor 750 is used to adjust the welding angle of the welding gun. The welding gun is accurately applied to the upper patch geomembrane surface to reduce the thermal fusion fracture of the lower geomembrane caused by high-temperature welding. The upper patch geomembrane is thermally fused and connected with the lower geomembrane. For the geomembrane repair with many cracks, well pattern welding can be performed on the surface of the patch geomembrane. The accurate repair of the reservoir anti-seepage geomembrane is realized. The overall movement of the maintenance device is controlled by the load motor 312. The lifting pulley 140 is used to slide and adsorb the lower geomembrane. The edge pressing roller shaft 550 is used to roll and press the edge. The continuous welding and repair of the patch geomembrane are realized, and the period of reservoir anti-seepage repair is reduced.

[0057] It should be noted that the specific type and specification of the lifting cylinder 120, the balance cylinder 320, the first damper 520, the second damper 540, the first rodless cylinder 710, the second rodless cylinder 730, the third rodless cylinder 740, the rotary motor 750, the edge pressing cylinder 770, the lifting cylinder 910, the edge cutting cylinder 940 and the edge cutting motor 960 need to be selected and determined according to the actual specification of the device. The specific selection calculation method adopts the existing technology in the art, and therefore will not be described in detail.

[0058] The power supply and principle of the cylinder 120, the balance cylinder 320, the first damper 520, the second damper 540, the first rodless cylinder 710, the second rodless cylinder 730, the third rodless cylinder 740, the rotary motor 750, the edge-pressing cylinder 770, the lifting cylinder 910, the edge-cutting cylinder 940 and the edge-cutting motor 960 are clear to those skilled in the art, and will not be described in detail herein.

[0059] The above merely provides an embodiment of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and thus once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

Claims

1. A maintenance device for impermeable geomembrane in reservoir areas, characterized in that, include A base film adsorption assembly (100) includes a maintenance frame (110), a lifting cylinder (120), a vacuum chamber (130), and a lifting pulley (140). The cylinder body of the lifting cylinder (120) is evenly arranged on the maintenance frame (110). The vacuum chamber (130) is located at one end of the piston rod of the lifting cylinder (120) and is connected to an external vacuum pipeline. The lifting pulley (140) is rotatably connected inside the vacuum chamber (130) and faces the outside atmosphere. A film-coating delivery assembly (300) includes a support frame (310), a balance cylinder (320), a fixed shaft (330), and a feeding rack (340). The support frame (310) is rotatably connected to the maintenance frame (110). The cylinder body of the balance cylinder (320) is rotatably connected to the maintenance frame (110). One end of the piston rod of the balance cylinder (320) is rotatably connected to the support frame (310). The fixed shaft (330) is rotatably connected to the support frame (310). The feeding rack (340) is suspended on the maintenance frame (110), and the fixed shaft (330) faces the feeding rack (340).

2. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The lower end of the support frame (310) is rotatably equipped with a load wheel (311), and the lower end of the support frame (310) is equipped with a load motor (312), the output end of which is driven by the load wheel (311).

3. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, One end of the fixed material shaft (330) is fixedly sleeved with a fixed core (331). A feeding shaft (313) is rotatably mounted on the support frame (310). A limiting core (314) is slidably sleeved on the feeding shaft (313). A limiting spring (315) is sleeved on the surface of the feeding shaft (313). One end of the limiting spring (315) is attached to the support frame (310), and the other end of the limiting spring (315) is attached to the limiting core (314).

4. The reservoir area impermeable geomembrane maintenance device according to claim 3, characterized in that, The support frame (310) is equipped with a feeding motor (316), the output end of the feeding motor (316) is fixed with a first gear (317), and one end of the feeding shaft (313) is fixed with a second gear (318), the first gear (317) meshing with the second gear (318).

5. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The balance cylinder (320) has a first support (321) rotatably mounted on the cylinder body, and the first support (321) is fixed on the maintenance frame (110).

6. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The piston rod of the balance cylinder (320) is rotatably provided with a second support (322), which is fixed on the support frame (310).

7. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The vacuum chamber (130) is provided with a vacuum connector (131), which is connected to an external vacuum pipeline. The vacuum chamber (130) is provided with suction ports (132) evenly distributed on it, and the lifting pulley (140) passes through the suction port (132).

8. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The feeding rack (340) is provided with a sliding tray (341), and the sliding tray (341) faces the feeding rack (340).

9. The reservoir area impermeable geomembrane maintenance device according to claim 1, characterized in that, The lifting cylinder (120) has a connecting plate (121) on its cylinder body, which is fixed to the inspection frame (110). The piston rod of the lifting cylinder (120) has a connecting seat (122) at one end, which is fixed to the vacuum box (130).

10. The reservoir area impermeable geomembrane maintenance device according to claim 9, characterized in that, A lifting rod (123) is provided on the connecting seat (122), and a lifting sleeve (124) is provided on the connecting plate (121). The lifting rod (123) slides through the lifting sleeve (124).

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