Water conservancy dam anti-seepage membrane laying device

Abstract

The present invention relates to a device for laying anti-seepage membranes for water conservancy dams, and belongs to the technical field of anti-seepage membrane laying. The device comprises two groups of mobile bases symmetrically placed on the top of the dam, a laying trolley is placed on each of the two groups of mobile bases, a support assembly is installed on the upper ends of the two groups of laying trolleys, and the two groups of support assemblies are respectively used to support the two ends of the anti-seepage membrane bearing rod, elastic film pressing rollers are installed on the opposite sides of the two groups of laying trolleys, a traction assembly for towing the laying trolley on the corresponding side is installed on the rear side of the upper ends of the two groups of mobile bases, and a fixing assembly for fixing the movable end of the anti-seepage membrane can be detachably installed on the opposite sides of the two groups of mobile bases. The present invention can realize the rapid laying of the anti-seepage membrane through the mutual cooperation of the laying trolley, the support assembly, the traction assembly and the fixing assembly, reduce the labor intensity of the construction workers, and effectively avoid the phenomenon of position offset, local wrinkles or accumulation during the laying process.

Description

Technical Field

[0001] The invention relates to the technical field of anti-seepage membrane laying, in particular to an anti-seepage membrane laying device for a water conservancy dam. Background Art

[0002] A dam is a vital hydraulic engineering facility used to regulate water flow, store water for power generation, and prevent flooding and irrigation. It is typically constructed of materials such as earth, stone, and concrete. An impermeable membrane, a flexible waterproof material made from a polymer, offers extremely low permeability and excellent corrosion resistance, effectively preventing water from penetrating. To ensure the long-term stability and anti-seepage effectiveness of a dam, an impermeable membrane must be applied to its surface or interior to reduce leakage risks, enhance structural durability, and lower maintenance costs.

[0003] Currently, during the installation of anti-seepage membranes for hydropower dams, construction workers typically roll the membrane down from the dam's upper reaches, resulting in low efficiency. Furthermore, during the installation process, the membrane is prone to positional shifting, causing the installation trajectory to deviate from the planned route and even causing local wrinkles or accumulation. This requires multiple people to coordinate and re-dragging and realign the membrane, which is not only labor-intensive but also can damage the membrane due to repeated pulling. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a device for laying an anti-seepage membrane for a water conservancy dam. The technical solution of the present invention is as follows:

[0005] The anti-seepage membrane laying device for a water conservancy dam comprises two groups of mobile bases symmetrically placed on the top of the dam, a laying trolley is placed on each of the two groups of mobile bases, a support assembly is installed on the upper ends of the two groups of laying trolleys, the two groups of support assemblies are respectively used to support the two end portions of the anti-seepage membrane bearing rod, elastic film pressing rollers are installed on opposite sides of the two groups of laying trolleys, a traction assembly for towing the laying trolley on the corresponding side is installed on the rear sides of the upper ends of the two groups of mobile bases, a fixing assembly for fixing the movable end of the anti-seepage membrane is detachably installed on the opposite sides of the two groups of mobile bases, the two groups of mobile bases are connected by a rear telescopic beam, the two groups of laying trolleys are connected by a front telescopic beam, and the two groups of traction assemblies achieve synchronous traction through a telescopic shaft;

[0006] The movable base includes a base plate for placing the paving trolley;

[0007] The laying trolley includes a frame, and the support assembly includes a support frame and a support cylinder. The support frame is fixedly connected to the upper surface of the frame, and the support cylinder is installed at the upper end of the support frame. A plurality of groups of adjustment rollers for supporting the ends of the anti-seepage membrane bearing rods are equidistantly arranged in an annular manner on the inner side of the support cylinder.

[0008] The fixing assembly includes a bottom plate and a film clamping member. The bottom plate is detachably mounted on one side of the base plate. The film clamping member is mounted on one side of the upper surface of the bottom plate. A fixed film pressing roller is mounted on the side of the upper surface of the bottom plate close to the base plate.

[0009] Optionally, the front side of the base is hinged with an inclined plate, and two groups of locks for closing the inclined plate are symmetrically installed on the front side of the upper surface of the base, and limit strips for providing positioning for the laying trolley are fixedly connected to the left and right sides of the upper surface of the base, and an anchoring member is detachably installed on the outer side of the base, and the anchoring member includes a C-shaped seat and an L-shaped seat, and the opening side of the C-shaped seat is fixedly connected to the base plate by bolts, and the L-shaped seat is fixedly connected to the side of the C-shaped seat away from the opening, and a ground nail is movably connected to the L-shaped seat, and the two groups of base plates are fixedly connected to an armrest frame on the sides away from each other, and the lower surface of the base plate is fixedly connected to multiple groups of universal wheels.

[0010] Optionally, the supporting cylinder includes a lower semi-cylinder and an upper semi-cylinder, the lower semi-cylinder is fixedly connected to the upper end of the supporting frame, the upper semi-cylinder is hinged to the upper end of the lower semi-cylinder, a limiting groove is penetrated on the side of the lower semi-cylinder away from the hinged end, and a short stud is fixedly connected to the side of the upper semi-cylinder away from the hinged end, the short stud penetrates the limiting groove and is threadedly provided with a nut.

[0011] Optionally, the cylinder walls of the lower semi-cylinder and the upper semi-cylinder are provided with multiple groups of elongated slots for installing adjusting roller parts, and the adjusting roller parts include two groups of vertical rails, the upper ends of the two groups of vertical rails are fixedly connected to the left and right sides of the elongated slots respectively, and the lower ends of the two groups of vertical rails are jointly fixed with a fixing seat, and a threaded hole 1 is provided through the middle position of the surface of the fixing seat, and a movable block is slidably connected between the two groups of vertical rails, and the upper end of the movable block is fixedly connected to the C-shaped roller frame, and the inner side of the C-shaped roller frame is rotatably connected to the small roller, and the lower end of the movable block is rotatably connected to a threaded long rod, and the threaded long rod is threadedly connected to the inside of the threaded hole 1, and the lower end of one side of the movable block is fixedly connected to a positioning mark rod, and one side of the vertical rail is provided with a scale line matching the positioning mark rod.

[0012] The top end face of the lifting link is hinged on the top of the lifting link, and the bottom end of the lifting link is hinged on the lifting link of the lifting link, and the lifting link is hinged on the top of the lifting link, the lifting link is hinged on the top of the lifting link, and the lifting link is hinged on the bottom of the lifting link.

[0013] Optionally, the paving trolley further comprises four groups of wheels symmetrically mounted on the left and right sides of the frame, the rear side of the frame is fixedly connected to a sleeve seat, the internal thread of the sleeve seat is connected to a pull ring, the traction assembly comprises a drum and two groups of support seats, a traction rope is wrapped around the outer side of the drum, one end of the traction rope is fixedly connected to the drum, and the other end of the traction rope is connected to the pull ring through a lock, and the center positions of both sides of the drum are fixedly connected to an axle rod, and the two groups of axle rods are respectively rotatably connected to the two groups of support seats, and the lower ends of the two groups of support seats are fixedly connected to the rear side of the upper surface of the frame, and the axles of the two groups of drums on the side away from each other are fixedly connected to a crank, and the axles of the two groups of drums on the side close to each other are fixedly connected to a connecting sleeve, the two ends of the telescopic shaft are respectively fixed to the two groups of connecting sleeves by bolts, and the front sides of the two groups of support seats are connected to limiting members.

[0014] Optionally, the limiting member includes two groups of support columns, which are respectively fixedly connected to the front sides of the two groups of support seats. Between the two groups of support columns, there are installed, from back to front, a longitudinal limiting group 1 for initially limiting the longitudinal swing of the traction rope, a lateral limiting group for limiting the lateral swing of the traction rope, and a longitudinal limiting group 2 for secondary limiting the longitudinal swing of the traction rope.

[0015] Optionally, the bottom plate is fixedly connected to a C-shaped seat 2 on one side close to the base plate, the open side of the C-shaped seat 2 is fixedly connected to the base plate by bolts, and the four corners of the lower surface of the bottom plate are fixedly connected to universal wheels 2, and the clamping member includes a fixed plate, two groups of vertical columns and a C-shaped clamping seat, the fixed plate is fixedly connected to the upper surface of the bottom plate, the two groups of vertical columns are fixedly connected to the left and right sides of the upper surface of the bottom plate, the opening of the C-shaped clamping seat is set to the front side, and the left and right ends of the rear side of the C-shaped clamping seat are fixedly connected to movable buckles, and the two groups of movable buckles are slidably connected to the corresponding side respectively. The outer side of the longitudinal column and the two are fixed by bolts, and a threaded hole 2 is opened through the center position of the upper surface of the C-shaped clamping seat, and through holes are opened through the upper surface of the C-shaped clamping seat and on the left and right sides of the threaded hole 2. A splint is longitudinally slidably provided inside the C-shaped clamping seat, and a short threaded rod is rotatably connected to the center position of the upper surface of the splint, and the short threaded rod is threadedly connected to the inside of the threaded hole 2, and a limiting rod is fixedly connected to the upper surface of the splint and on the left and right sides of the short threaded rod, and the two groups of limiting rods are respectively slidably connected to the inside of the through hole on the corresponding side.

[0016] Optionally, the fixed film pressing roller includes a stand and a fixed disc, the stand is fixedly connected to the upper surface of the bottom plate and close to the side of the base plate, the fixed disc is fixedly connected to the upper end of the stand, the outer side of the fixed disc is rotatably connected to the rotating disc, the upper end of the rotating disc is fixedly connected to a support arm, the end of the support arm away from the rotating disc is rotatably connected to the film pressing roller 2, one side of the fixed disc is provided with a limiting hole 1 and a limiting hole 2, the side of the rotating disc is provided with a movable hole, the inside of the movable hole is installed with a positioning member for limiting the rotation of the support arm, and the positioning member includes a limiting pin and a cylinder, the limit pin is slidably connected to the inside of the movable hole, the cylinder is fixedly connected to the side of the rotating disc and is communicated with the movable hole, the limit pin is fixedly connected to a short spring on the side close to the cylinder, the short spring is fixedly connected to the inside of the cylinder and one end away from the rotating disc at one end away from the limit pin, and the cylinder is threadedly connected to a fixing bolt on the side away from the rotating disc, wherein when the head of the limit pin elastically abuts against the limiting hole one, the film pressing roller two is located directly above the bottom plate, and when the head of the limit pin elastically abuts against the limiting hole two, the film pressing roller two presses the anti-seepage membrane tightly against the dam ground.

[0017] Optionally, the front telescopic beam includes a hollow front main beam and two groups of front sub-beams, the two groups of front sub-beams are respectively slidably connected to the left and right ends of the front main beam and fixed therebetween by bolts, the ends of the two groups of front sub-beams away from the front main beam are fixedly connected to C-shaped seats four, the open sides of the two groups of C-shaped seats four are respectively fixedly connected to the frame on the corresponding side by bolts, the front side of the front main beam is fixedly connected to a support column, the upper end of the support column is fixedly connected to a front handle, the rear middle position of the front handle is fixedly connected to a cross bar by bolts, and the rear end of the cross bar is fixedly connected to a rear handle.

[0018] All the above optional technical solutions can be combined arbitrarily, and the present invention does not provide detailed descriptions of the structures after each combination.

[0019] By means of the above solution, the beneficial effects of the present invention are as follows:

[0020] The present invention can realize the rapid laying of the anti-seepage membrane through the mutual cooperation of the laying trolley, the support assembly, the traction assembly and the fixed assembly, reduce the labor intensity of the construction workers, and effectively avoid the phenomenon of position offset, local wrinkles or accumulation during the laying process. Specifically, before laying, the construction workers first place the two ends of the anti-seepage membrane support rod on the support assemblies of the two groups of laying trolleys, and then clamp and fix the movable end of the anti-seepage membrane through the fixed assembly. Then the laying operation is carried out, and the two groups of laying trolleys drive the anti-seepage membrane to slide down along the top of the dam slope to the bottom of the slope. During the sliding process, the construction workers can effectively control the sliding speed of the laying trolley through the traction assembly to ensure that the laying process is carried out smoothly.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall appearance of the water conservancy dam anti-seepage membrane laying device provided by the present invention in use;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 This is a schematic diagram of the overall appearance structure of the water conservancy dam anti-seepage membrane laying device provided by the present invention in the storage state;

[0025] Figure 4 for Figure 3 Right view of;

[0026] Figure 5A schematic diagram of the overall appearance of the water conservancy dam anti-seepage membrane laying device provided by the present invention in the water conservancy dam laying state;

[0027] Figure 6 This is a schematic diagram of the structure of the movable base, laying trolley, support assembly, elastic film pressing roller, traction assembly, rear telescopic beam, front telescopic beam and telescopic shaft in the present invention;

[0028] Figure 7 A schematic diagram of the disassembled structure of the water conservancy dam anti-seepage membrane laying device provided by the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the movable base, laying trolley, support assembly, elastic film pressing roller, traction assembly and fixed assembly in the present invention;

[0030] Figure 9 Schematic diagram of the exploded structure of the mobile base and traction assembly in the present invention;

[0031] Figure 10 This is a schematic diagram of the exploded structure of the laying trolley, support assembly and elastic film pressing roller in the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the lower semi-cylinder and the upper semi-cylinder in the present invention in the open state;

[0033] Figure 12 Schematic diagram of the exploded structure of the support assembly in the present invention;

[0034] Figure 13 Schematic diagram of the exploded structure of the adjusting roller member in the present invention;

[0035] Figure 14 It is a right side cross-sectional view of the elastic laminating roller in the present invention;

[0036] Figure 15 Schematic diagram of the exploded structure of the traction assembly in the present invention;

[0037] Figure 16 Schematic diagram of the structure of the fixed component in the present invention Figure 1 ;

[0038] Figure 17 Schematic diagram of the structure of the fixed component in the present invention Figure 2 ;

[0039] Figure 18 It is a schematic diagram of the exploded structure of the front telescopic beam in the present invention.

[0040] Numbers in the figure: 1. Mobile base; 11. Base plate; 12. Inclined plate; 13. Locking piece; 131. Supporting seat; 132. Buckle; 133. Locking pin; 14. Limiting strip; 15. Anchoring piece; 151. C-type seat 1; 152. L-type seat; 153. Ground nail; 16. Handrail; 17. Universal wheel 1; 2. Laying trolley; 21. Frame; 22. Wheel; 23. Sleeve seat; 24. Pull ring; 3. Support assembly; 31. Support frame; 32. Support cylinder; 321. Lower half cylinder; 3211. Limiting groove; 322. Upper half cylinder; 3221. Short stud; 3222. Nut; 323. Long groove; 33. Adjustment Roller assembly; 331, vertical rail; 3311, scale mark; 332, fixed seat; 3321, threaded hole 1; 333, movable block; 334, C-shaped roller frame; 335, small roller; 336, long threaded rod; 337, positioning mark; 4, elastic film pressing roller; 41, right-angle frame; 42, slide rail seat; 43, support rod; 44, film pressing roller 1; 45, inclined rod; 46, slider; 47, elastic member; 471, outer sleeve; 472, slide rod; 473, long spring; 48, adjusting rod; 5, traction assembly; 51, winding drum; 511, traction rope; 52, shaft; 53, support seat; 54, crank; 55, connecting sleeve; 56. Limiting member; 561. Support column; 562. Longitudinal limiting group 1; 5621. Square frame; 5622. Connecting rod; 5623. Sliding buckle; 5624. Horizontal roller; 563. Horizontal limiting group; 564. Longitudinal limiting group 2; 6. Fixing assembly; 61. Bottom plate; 611. C-type seat 2; 612. Universal wheel 2; 62. Film clamping member; 621. Fixed plate; 622. Vertical column; 623. C-type film clamping seat; 6231. Threaded hole 2; 6232. Through hole; 624. Active buckle; 625. Clamping plate; 626. Short threaded rod; 627. Limiting rod; 63. Fixed film roller; 631. Stand; 632. Fixed : Fixed disc; 6321, limiting hole one; 6322, limiting hole two; 633, rotating disc; 6331, movable hole; 634, supporting arm; 635, film pressing roller two; 636, positioning piece; 6361, limiting pin; 6362, cylinder; 6363, short spring; 6364, fixing bolt; 7, rear telescopic beam; 71, rear main beam; 72, rear sub-beam; 73, C-type seat three; 8, front telescopic beam; 81, front main beam; 82, front sub-beam; 83, C-type seat four; 84, supporting column; 85, front handle; 86, cross bar; 87, rear handle; 9, telescopic shaft; 91, main shaft; 92, sub-shaft; 100, anti-seepage membrane bearing rod. DETAILED DESCRIPTION

[0041] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0042] See also Figure 1-18 The present invention provides a device for laying anti-seepage membrane for a water conservancy dam, comprising two groups of mobile bases 1 symmetrically placed on the top of the dam, a laying trolley 2 placed on each of the two groups of mobile bases 1, a support assembly 3 installed on the upper ends of the two groups of laying trolleys 2, the two groups of support assemblies 3 being respectively used to support the two end portions of the anti-seepage membrane bearing rod 100, elastic film pressing rollers 4 being installed on the opposite sides of the two groups of laying trolleys 2, a traction assembly 5 for towing the laying trolley 2 on the corresponding side being installed on the rear sides of the upper ends of the two groups of mobile bases 1, a fixing assembly 6 for fixing the movable end of the anti-seepage membrane being detachably installed on the opposite sides of the two groups of mobile bases 1, the two groups of mobile bases 1 being connected by a rear telescopic beam 7, the two groups of laying trolleys 2 being connected by a front telescopic beam 8, and the two groups of traction assemblies 5 achieving synchronous traction through a telescopic shaft 9.

[0043] The movable base 1 comprises a base plate 11 for placing the paving trolley 2 .

[0044] The laying trolley 2 includes a frame 21 and four groups of wheels 22 symmetrically installed on the left and right sides of the frame 21. The support assembly 3 includes a support frame 31 and a support cylinder 32. The support frame 31 is fixedly connected to the upper surface of the frame 21, and the support cylinder 32 is installed at the upper end of the support frame 31. A plurality of groups of adjusting roller members 33 for supporting the end of the anti-seepage membrane bearing rod 100 are equidistantly arranged in a ring on the inner side of the support cylinder 32; the support assembly 3 can effectively support the end of the anti-seepage membrane bearing rod 100, and under the action of the plurality of groups of adjusting roller members 33, the anti-seepage membrane bearing rod 100 rotates more smoothly, making the unfolding process of the anti-seepage membrane smoother.

[0045] The fixing assembly 6 includes a base plate 61 and a film clamping member 62. The base plate 61 is removably mounted on one side of the base plate 11. The film clamping member 62 is mounted on the upper surface of the base plate 61. A fixed film pressing roller 63 is mounted on the upper surface of the base plate 61, near the base plate 11. The film clamping member 62 effectively secures the movable end of the anti-seepage membrane, preventing it from loosening or shifting during installation. The fixed film pressing roller 63 presses the membrane downward to adhere to the dam slope.

[0046] Specifically, the entire device adopts a detachable structure for easy transportation and transfer. Before laying, the construction workers first assemble the device. The length of the rear telescopic beam 7, front telescopic beam 8 and telescopic shaft 9 are adjusted according to the width of the anti-seepage membrane. Then, the two sets of mobile bases 1 are connected via the rear telescopic beam 7, the two sets of laying carts 2 are connected via the front telescopic beam 8, and the two sets of traction components 5 are connected via the telescopic shaft 9. Next, the bottom plate 61 in the fixing component 6 is fixed to the appropriate position on one side of the base plate 11, and finally the mobile base 1 is fixed to the dam ground. After assembly is completed, the two ends of the anti-seepage membrane support rod 100 are respectively installed on the support components 3 on the two sets of laying carts 2, and then the movable end of the anti-seepage membrane is clamped and fixed by the fixing component 6. The laying operation is then carried out, and the two sets of laying carts 2 drive the anti-seepage membrane to slide down along the top of the dam slope to the bottom of the slope. During the sliding process, the construction workers can effectively control the sliding speed of the laying carts 2 through the traction component 5, thereby better controlling the laying effect. After the laying is completed, the laying trolley 2 is towed onto the base plate 11 by the traction assembly 5. The construction workers can then push the mobile base 1 to the next laying location, making movement more convenient.

[0047] By setting the rear telescopic beam 7, the front telescopic beam 8 and the telescopic shaft 9, the construction workers can flexibly adjust the actual lengths of the rear telescopic beam 7, the front telescopic beam 8 and the telescopic shaft 9 according to the actual size of the anti-seepage membrane, so that the spacing between the two groups of laying trolleys 2 can be adjusted according to the width of the anti-seepage membrane, greatly enhancing the applicability.

[0048] Furthermore, the front side of the base plate 11 is hinged with an inclined plate 12, and two groups of locks 13 for closing the inclined plate 12 are symmetrically installed on the front side of the upper surface of the base plate 11. The lock 13 includes a support stand 131 and a buckle 132. The support stand 131 is fixedly connected to the base plate 11, and the buckle 132 is rotatably connected to one side of the support stand 131. The left and right sides of the inclined plate 12 are fixedly connected with locking pins 133 used in conjunction with the buckle 132; when the paving trolley 2 is placed on the base plate 11, the inclined plate 12 is rotated to a position at a ninety-degree angle to the base plate 11, and then the buckle 132 is rotated to the position of the locking pin 133. At this time, the inclined plate 12 is in a closed state, which can prevent the paving trolley 2 from sliding from the front side of the base plate 11. When it is necessary to use the laying trolley 2 to lay the anti-seepage membrane, the buckle 132 can be separated from the locking pin 133, and then the inclined plate 12 can be rotated so that the side of the inclined plate 12 away from the base plate 11 contacts the dam ground. At this time, the inclined plate 12 acts as a slope, and the staff can slide the laying trolley 2 on the base plate 11 down along the inclined plate 12 and smoothly enter the downhill area.

[0049] Furthermore, limit bars 14 are fixedly connected to the left and right sides of the upper surface of the base plate 11 to provide positioning for the laying trolley 2; the two sets of limit bars 14 are respectively fitted with the inner sides of the four sets of wheels 22 of the laying trolley 2. When the laying trolley 2 moves onto the base plate 11, the laying trolley 2 can be quickly positioned under the action of the two sets of limit bars 14.

[0050] Furthermore, anchorage members 15 are detachably mounted on the outside of base plate 11. These anchorage members 15 include a C-shaped seat 151 and an L-shaped seat 152. The open side of C-shaped seat 151 is fixedly connected to base plate 11 via bolts. L-shaped seat 152 is fixedly connected to the side of C-shaped seat 151 facing away from the opening. Ground spikes 153 are movably connected to L-shaped seat 152. Handrails 16 are fixedly attached to the sides of both sets of base plates 11 facing away from each other. Multiple sets of universal wheels 17 are fixedly attached to the lower surfaces of base plates 11. Specifically, construction workers can use handrails 16, in conjunction with multiple sets of universal wheels 17, to flexibly move mobile base 1. When mobile base 1 needs to be fixed to the dam ground, an appropriate number of anchorage members 15 can be installed based on the dam's slope requirements. The specific installation steps of the anchor member 15 are as follows: fix the C-shaped seat 151 to the base plate 11 with bolts, and then insert the ground nail 153 through the L-shaped seat 152 and into the ground to ensure that the mobile base 1 remains stable during the installation of the anti-seepage membrane. If necessary, the construction personnel can also add load-bearing blocks to the base plate 11.

[0051] It should be noted that the universal wheel 17 can be a brake-type universal wheel. In this way, after the mobile base 1 is moved to the designated position, the construction personnel can use the brake to brake and prevent the mobile base 1 from sliding during operation. In addition, the lower surface of the base plate 11 can also be installed with multiple sets of adjustable feet. After the construction personnel confirm that the mobile base 1 has reached the designated position, they can adjust the adjustable feet to make it fit tightly with the ground, thereby further increasing the stability of the mobile base 1.

[0052] Furthermore, the support cylinder 32 includes a lower semi-cylinder 321 and an upper semi-cylinder 322. The lower semi-cylinder 321 is fixedly connected to the upper end of the support frame 31, and the upper semi-cylinder 322 is hinged to the upper end of the lower semi-cylinder 321. A limiting groove 3211 is penetrated and provided on the side of the lower semi-cylinder 321 away from the hinge end. A short stud 3221 is fixedly connected to the side of the upper semi-cylinder 322 away from the hinge end. The short stud 3221 penetrates the limiting groove 3211 and is threadedly sleeved with a nut 3222. When it is necessary to fix the anti-seepage membrane support rod 100, the upper semi-cylinder 322 is first rotated to open the support cylinder 32. Then, the end of the anti-seepage membrane support rod 100 is placed in the lower semi-cylinder 321, and then the upper semi-cylinder 322 is rotated again to engage with the lower semi-cylinder 321. At this time, the support cylinder 32 is closed. During the buckling process of the upper semi-cylinder 322 , the short stud 3221 of the upper semi-cylinder 322 is gradually inserted into the limiting groove 3211 of the lower semi-cylinder 321 . After the buckling is completed, the short stud 3221 is limited by the nut 3222 .

[0053] Furthermore, multiple groups of elongated slots 323 for mounting the adjusting roller member 33 are formed on the walls of the lower semi-cylinder 321 and the upper semi-cylinder 322. The adjusting roller member 33 includes two groups of vertical rails 331. The upper ends of the two groups of vertical rails 331 are fixedly connected to the left and right sides of the elongated slot 323 respectively. The lower ends of the two groups of vertical rails 331 are jointly fixed with a fixing seat 332. A threaded hole 3321 is formed in the middle position of the surface of the fixing seat 332. A movable block 333 is slidably connected between the two groups of vertical rails 331. The upper end of the movable block 333 is fixedly connected to A C-shaped roller frame 334 is provided, and a small roller 335 is rotatably connected to the inner side of the C-shaped roller frame 334. The lower end of the movable block 333 is rotatably connected to a threaded long rod 336. The threaded long rod 336 is threadedly connected to the inside of the threaded hole 1 3321. A positioning mark 337 is fixedly connected to the lower end of one side of the movable block 333. A scale line 3311 that matches the positioning mark 337 is provided on one side of the vertical rail 331. Multiple groups of adjusting roller parts 33 arranged in an annular manner and equidistantly on the inner side of the supporting cylinder 32 can provide effective support for the end of the anti-seepage membrane supporting rod 100. Specifically, when the laying trolley 2 slides down along the slope of the dam and drives the anti-seepage membrane to unfold, the anti-seepage membrane supporting rod 100 rotates. With the cooperation of multiple groups of small rollers 335, the anti-seepage membrane supporting rod 100 can rotate smoothly. Secondly, the diameter of the rotating groove formed by the multiple groups of small rollers 335 is in an adjustable state, and the construction personnel can make corresponding adjustments according to the diameters of different anti-seepage membrane supporting rods 100. Specifically, by rotating the threaded rod 336, the threaded rod 336 drives the movable block 333 to slide within the two sets of vertical rails 331, thereby driving the C-shaped roller frame 334 and the small roller 335 to change position. During the adjustment process, the construction personnel can make precise adjustments by locating the scale line 3311 corresponding to the positioning mark 337.

[0054] Furthermore, the elastic film pressing roller 4 includes a right-angle frame 41, a slide rail seat 42, a support rod 43 and a film pressing roller 44. The right-angle frame 41 is fixedly connected to the rear side of the upper surface of the vehicle frame 21, the front end of the slide rail seat 42 is fixedly connected to the lower surface of the lateral side of the right-angle frame 41, the support rod 43 is hinged to the front end of the lower surface of the slide rail seat 42, and the film pressing roller 44 is rotatably connected to the lower end of the support rod 43. A diagonal rod 45 is hinged at the middle position of the rear side of the support rod 43, and a slider 46 is hinged at one end of the diagonal rod 45 away from the support rod 43. The slider 46 is slidably connected to the inside of the slide rail seat 42, and the rear side of the slider 46 is connected to an elastic member 47, which is located at the slide rail seat. Inside the rail 42, an elastic member 47 includes an outer sleeve 471, a slide rod 472, and a long spring 473. The outer sleeve 471 is fixedly connected to the rear side of the slider 46, and the slide rod 472 is slidably connected to the rear end of the outer sleeve 471. The long spring 473 is located inside the outer sleeve 471, with its front end fixedly connected to the inner front end of the outer sleeve 471 and its rear end fixedly connected to the front end of the slide rod 472. An adjustment rod 48 is threadedly connected to the front side of the rail seat 42. The elastic member 47 allows the film pressing roller 1 44 to elastically press down the anti-seepage film as the paving cart 2 slides down the dam slope, ensuring that it remains in contact with the dam slope. If the dam slope has bumps or depressions, the film pressing roller 1 44, under the action of the elastic member 47, can automatically adjust to the slope conditions. Specifically, when the dam slope has bumps, the film pressing roller 1 44 is lifted up. During this process, the angle between the support rod 43 and the slide rail seat 42 decreases, and the support rod 43 drives the slider 46 backward via the diagonal rod 45, thereby squeezing the elastic member 47. After the film pressing roller 1 44 passes over the protrusion, the slider 46 and the film pressing roller 1 44 are elastically reset by the elastic member 47. By providing an adjustment rod 48, when the impermeable membrane is laid and the film pressing roller 1 44 is no longer needed, the adjustment rod 48 can be rotated, and the rear end of the adjustment rod 48 abuts the slider 46 and moves backward, thereby lifting the film pressing roller 1 44 off the ground.

[0055] Furthermore, a sleeve seat 23 is fixedly connected to the rear side of the frame 21, and a pull ring 24 is connected to the internal thread of the sleeve seat 23. The traction assembly 5 includes a drum 51 and two groups of support seats 53. A traction rope 511 is wound around the outside of the drum 51. One end of the traction rope 511 is fixedly connected to the drum 51, and the other end of the traction rope 511 is connected to the pull ring 24 through a lock buckle. The center positions on both sides of the drum 51 are fixedly connected to shafts 52. The two groups of shafts 52 are rotatably connected to the two groups of support seats 53 respectively. The lower ends of the two groups of support seats 53 are fixed to the rear side of the upper surface of the frame 21. The shafts 52 on the sides of the two sets of winding drums 51 that are away from each other are fixedly connected to a crank 54, and the shafts 52 on the sides of the two sets of winding drums 51 that are close to each other are fixedly connected to a connecting sleeve 55. The two ends of the telescopic shaft 9 are respectively fixed to the two sets of connecting sleeves 55 by bolts. The front sides of the two sets of support seats 53 are connected to limit members 56. When the laying trolley 2 is pulled down the dam slope by the traction assembly 5, the construction workers can rotate one set of cranks 54, which drives the crank 54 to rotate the set of winding drums 51. Under the action of the telescopic shaft 9, the other set of winding drums 51 also rotates synchronously. In this way, the two sets of winding drums 51 can operate synchronously, so that the length of the traction rope 511 released by the two sets of winding drums 51 is consistent, effectively preventing the laying trolley 2 from shifting during the descent. When the laying is completed, the construction workers rotate the crank 54 in the opposite direction, indirectly driving the two sets of winding drums 51 to rotate in the opposite direction. At this time, the traction rope 511 is gradually retracted, thereby towing the two sets of laying trolleys 2 from the bottom of the dam slope to the top of the dam slope.

[0056] It should be noted that the rope spacing between the winding drums 51 is slightly larger than the diameter of the traction rope 511, so that the traction rope 511 can be kept wound in a single row, thereby avoiding crossing or misalignment, ensuring that the traction rope 511 is always pulled in the same direction when released or retracted.

[0057] Furthermore, the limiting member 56 includes two groups of support columns 561, and the two groups of support columns 561 are respectively fixedly connected to the front sides of the two groups of support seats 53. A longitudinal limiting group 1 562 for initially limiting the longitudinal swing of the traction rope 511, a lateral limiting group 563 for limiting the lateral swing of the traction rope 511, and a longitudinal limiting group 2 564 for secondary limiting the longitudinal swing of the traction rope 511 are successively installed between the two groups of support columns 561 from back to front. The longitudinal limiting group 1 562 includes a square frame 5621 and two groups of connecting rods 5622. The two groups of connecting rods 5622 are respectively fixedly connected to the left and right sides of the square frame 5621. The ends of the two groups of connecting rods 5622 away from the square frame 5621 are fixedly connected with a sliding buckle 5623, two groups of sliding buckles 5623 are respectively slidably connected to the outside of the two groups of support columns 561 and the two are fixed by bolts. The internal rotation of the square frame 5621 is connected with two groups of horizontal rollers 5624, and the two groups of horizontal rollers 5624 are distributed up and down. The longitudinal limit group 2 564 is consistent with the structure of the longitudinal limit group 1 562. The horizontal limit group 563 also includes a square frame 5621, two groups of connecting rods 5622 and two groups of sliding buckles 5623. The internal rotation of the square frame 5621 is connected with two groups of vertical rollers; during the traction process, the limit member 56 adopts a longitudinal-lateral-longitudinal triple limit arrangement to form a three-dimensional constraint on the spatial swing of the traction rope 511, which can effectively prevent the traction rope 511 from derailing.

[0058] Furthermore, a C-shaped seat 611 is fixedly connected to one side of the bottom plate 61 close to the base plate 11, and an open side of the C-shaped seat 611 is fixedly connected to the base plate 11 by bolts. A (brake-type) universal wheel 612 is fixedly connected to each of the four corners of the lower surface of the bottom plate 61. The film clamping member 62 includes a fixed plate 621, two groups of vertical columns 622 and a C-shaped film clamping seat 623. The fixed plate 621 is fixedly connected to the upper surface of the bottom plate 61, and the two groups of vertical columns 622 are fixedly connected to the left and right sides of the upper surface of the bottom plate 61. The opening of the C-shaped film clamping seat 623 is set to the front side, and the left and right ends of the rear side of the C-shaped film clamping seat 623 are fixedly connected with movable buckles 624. The two groups of movable buckles 624 are respectively slidably connected to the outer sides of the vertical columns 622 on the corresponding side and are fixed therebetween by bolts. The upper surface of the C-shaped film clamping seat 623 A second threaded hole 6231 is formed through the center of the surface. Through holes 6232 are formed through the upper surface of the C-shaped membrane holder 623, on both sides of the second threaded hole 6231. A clamping plate 625 is longitudinally slidably mounted inside the C-shaped membrane holder 623. A short threaded rod 626 is rotatably connected to the center of the upper surface of the clamping plate 625. The short threaded rod 626 is threadedly connected to the interior of the second threaded hole 6231. Limit rods 627 are fixedly connected to the upper surface of the clamping plate 625, on both sides of the short threaded rod 626. The two sets of limit rods 627 are slidably connected to the interior of the through holes 6232 on the corresponding side. When the membrane clamping member 62 is needed to clamp and secure the movable end of the membrane, the movable end of the membrane is placed inside the C-shaped membrane holder 623 and below the clamping plate 625. Once placed, the short threaded rod 626 is manually rotated. During this process, the two groups of through holes 6232 act as limiters for the two groups of limiting rods 627, so that the clamping plate 625 can only slide vertically. As the short threaded rod 626 rotates, the clamping plate 625 will gradually move downward until the clamping plate 625 is in close contact with the anti-seepage membrane, thereby effectively clamping and fixing the anti-seepage membrane. Secondly, the relative height of the C-type clamping membrane seat 623 and the two groups of vertical columns 622 can be flexibly adjusted according to demand. In addition, the inner bottom wall of the C-type clamping membrane seat 623 and the lower surface of the clamping plate 625 are both bonded with rubber pads. When clamping the anti-seepage membrane, the rubber pads can effectively increase the friction between the clamping process and the anti-seepage membrane.

[0059] Furthermore, the fixed film pressing roller 63 includes a stand 631 and a fixed disc 632. The stand 631 is fixedly connected to the upper surface of the bottom plate 61 and close to the side of the substrate 11. The fixed disc 632 is fixedly connected to the upper end of the stand 631. The outer side of the fixed disc 632 is rotatably connected to the rotating disc 633. The upper end of the rotating disc 633 is fixedly connected to the support arm 634. The end of the support arm 634 away from the rotating disc 633 is rotatably connected to the film pressing roller 2 635. A limiting hole 1 6321 and a limiting hole 2 6322 are provided on one side of the fixed disc 632. A movable hole 6331 is provided on the side of the rotating disc 633. A positioning member 636 for limiting the rotation of the support arm 634 is installed inside the movable hole 6331. The positioning member 636 includes a limiting pin 6361 and a cylinder 6362. The limiting pin 6361 is slidably connected to the inside of the movable hole 6331 The cylinder 6362 is fixedly connected to the side of the rotating disk 633 and is connected to the movable hole 6331. The side of the limit pin 6361 close to the cylinder 6362 is fixedly connected to a short spring 6363. The end of the short spring 6363 away from the limit pin 6361 is fixedly connected to the inside of the cylinder 6362 and away from the end of the rotating disk 633. The side of the cylinder 6362 away from the rotating disk 633 is threadedly connected with a fixing bolt 6364. When the head of the limit pin 6361 elastically abuts against the limiting hole 1 6321, the film pressing roller 2 635 is located directly above the bottom plate 61. When the head of the limit pin 6361 elastically abuts against the limiting hole 2 6322, the film pressing roller 2 635 presses the anti-seepage membrane tightly to the dam ground. When the film clamping member 62 clamps the movable end of the anti-seepage membrane, the fixed film pressing roller 63 is used to press the anti-seepage membrane tightly so that it fits the dam ground. The specific operation is to first loosen the fixing bolt 6364 to activate the limit pin 6361. Then, rotate the support arm 634, which drives the rotating disc 633 and the fixed disc 632 to rotate relative to each other. During this process, the limit pin 6361 gradually disengages from the first limit hole 6321 and squeezes the short spring 6363. After the second film pressing roller 635 presses the anti-seepage membrane tightly against the dam floor, the limit pin 6361 is precisely engaged in the second limit hole 6322. Finally, tighten the fixing bolt 6364, and the limit pin 6361 is now firmly fixed in the second limit hole 6322.

[0060] Furthermore, the rear telescopic beam 7 includes a rear main beam 71 and two groups of rear sub-beams 72. The two groups of rear sub-beams 72 are respectively slidably connected to the left and right ends of the rear main beam 71 and fixed therebetween by bolts. The ends of the two groups of rear sub-beams 72 away from the rear main beam 71 are fixedly connected with C-shaped seats 3 73. The opening sides of the two groups of C-shaped seats 3 73 are respectively fixedly connected to the base plate 11 on the corresponding side by bolts. The length of the rear telescopic beam 7 is adjusted according to the width of the anti-seepage membrane. After the adjustment is completed, the two groups of C-shaped seats 3 73 are respectively fixed to the base plate 11 on the corresponding side.

[0061] Furthermore, the front telescopic beam 8 includes an internally hollow front main beam 81 and two groups of front sub-beams 82. The two groups of front sub-beams 82 are respectively slidably connected to the left and right ends of the front main beam 81 and fixed therebetween by bolts. The ends of the two groups of front sub-beams 82 away from the front main beam 81 are fixedly connected to C-shaped seats 83. The open sides of the two groups of C-shaped seats 83 are respectively fixedly connected to the frame 21 on the corresponding side by bolts. The front side of the front main beam 81 is fixedly connected to a support column 84. The upper end of the support column 84 is fixedly connected to a front handlebar 85. The middle position of the rear side of the front handlebar 85 is fixedly connected to a cross bar 86 by bolts. The rear end of the cross bar 86 is fixedly connected to a rear handlebar 87. The length of the front telescopic beam 8 is adjusted according to the width of the anti-seepage membrane. After the adjustment is completed, the two groups of C-shaped seats 83 are respectively fixed to the frame 21 on the corresponding side. Secondly, a support column 84 and a front handle 85 are installed on the front side of the front main beam 81, and a cross bar 86 and a rear handle 87 are detachably installed on the rear side of the front handle 85. Construction workers can choose to use the front handle 85 or the rear handle 87 according to paving requirements, so that during the paving process, the construction workers can use the front handle 85 or the rear handle 87 to control the paving trolley 2.

[0062] Furthermore, the telescopic shaft 9 includes a main shaft 91 and two sets of secondary shafts 92. The two sets of secondary shafts 92 are slidably connected to the left and right ends of the main shaft 91 and fixed together by bolts. The ends of the two sets of secondary shafts 92, away from the main shaft 91, are fixedly connected to the corresponding connecting sleeves 55 by bolts. Both the main shaft 91 and the secondary shaft 92 are polygonal prisms (e.g., hexagonal prisms), and the connecting sleeves 55 are internally provided with polygonal grooves (e.g., hexagonal grooves) that match the polygonal prisms. When a worker rotates one set of cranks 54, the crank 54 drives the winding drums 51 of that set to rotate. The winding drums 51 of that set, through the shaft 52, connecting sleeves 55, and the telescopic shaft 9, drive the other set of winding drums 51 to rotate synchronously, thereby achieving synchronous rotation of the two sets of winding drums 51.

[0063] Working principle:

[0064] Step 1: Construction workers transport the required components of the device to the laying position on the top of the dam, and then assemble them (the assembled overall device is as follows Figure 3 The specific steps are as follows: first, adjust the lengths of the rear telescopic beam 7, front telescopic beam 8, and telescopic shaft 9 according to the width of the required anti-seepage membrane. Then, use the rear telescopic beam 7 to connect the two sets of mobile bases 1, the front telescopic beam 8 to connect the two sets of laying trolleys 2, and the telescopic shaft 9 to connect the winding drums 51 of the two sets of traction assemblies 5. Then, fix the bottom plate 61 to a suitable position on the side of the base plate 11. This completes the assembly of the device.

[0065] Step 2: Secure the mobile base 1 to the dam's top. Specifically, apply the brakes to universal wheels 17 and 612. Next, install the appropriate number of anchors 15 based on the dam's slope. Use these anchors 15 to secure the mobile base 1 to the dam's top. If necessary, load-bearing blocks can be placed on the baseplate 11.

[0066] Step 3: Install the impermeable membrane to be laid on the laying trolley 2. Specifically, open the inclined plate 12 on the front side of the base plate 11 and move the two sets of laying trolleys 2 away from the base plate 11 using the front handle 85. Then, flip open the upper semi-cylinder 322, place the two ends of the impermeable membrane support rod 100 inside the two sets of lower semi-cylinders 321, and finally buckle the upper semi-cylinder 322 to secure it.

[0067] Step 4: Secure the movable end of the membrane using the securing assembly 6. Specifically, pull the movable end of the membrane under the two sets of pressing rollers 44. Next, secure the movable end of the membrane using the membrane clamping member 62. Once secured, rotate the support arm 634, which drives the pressing roller 635 to press the membrane downward until it rests against the ground.

[0068] Step 5: Use the traction assembly 5 to cooperate with the laying trolley 2 to complete the laying of the anti-seepage membrane (such as Figure 5 As shown in the figure, the construction workers use the front handles 85 to move the two laying carts 2 to the dam slope. Under the influence of gravity, the laying carts 2 will slide down the slope. During this process, the construction workers can rotate one of the crank handles 54. Under the action of the telescopic shaft 9, the two winding drums 51 rotate synchronously, thereby releasing the two traction ropes 511 simultaneously. The two laying carts 2 drive the anti-seepage membrane downward, completing the laying task.

[0069] It is important to note that: 1. During the installation of the impermeable membrane, construction personnel can choose whether to install a pulley block at the top of the dam slope based on the dam's slope to prevent friction and wear between the bend of the traction rope 511 and the dam. 2. Depending on the dam's slope, construction personnel can choose whether to assist in maneuvering the laying trolley 2. If assistance is required, construction personnel can use the front handle 85 or rear handle 87 to assist in controlling the laying trolley 2, ensuring smooth installation.

[0070] Step 6: After paving is completed, the paving trolleys 2 are moved to the next paving location. Specifically, the construction worker rotates the crank 54 in the opposite direction, thereby pulling the two sets of paving trolleys 2 from the bottom of the dam slope to the top of the dam, and then moves them along the inclined plate 12 to the base plate 11. Then, the mobile base 1 is released from its fixed state and moved to the next paving location using the handrail 16.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for laying anti-seepage membrane for a water conservancy dam, characterized by: The invention comprises two groups of mobile bases (1) symmetrically placed on the top of the dam, a laying trolley (2) is placed on each of the two groups of mobile bases (1), a support assembly (3) is installed on the upper end of each of the two groups of laying trolleys (2), and the two groups of support assemblies (3) are respectively used to support the two ends of the anti-seepage membrane bearing rod (100), an elastic film pressing roller (4) is installed on the opposite side of the two groups of laying trolleys (2), a traction assembly (5) for towing the laying trolley (2) on the corresponding side is installed on the rear side of the upper end of each of the two groups of mobile bases (1), and a fixing assembly (6) for fixing the movable end of the anti-seepage membrane is detachably installed on the opposite side of the two groups of mobile bases (1), the two groups of mobile bases (1) are connected by a rear telescopic beam (7), the two groups of laying trolleys (2) are connected by a front telescopic beam (8), and the two groups of traction assemblies (5) achieve synchronous traction through a telescopic shaft (9); The movable base (1) comprises a base plate (11) for placing a paving trolley (2); The laying trolley (2) includes a vehicle frame (21), and the support assembly (3) includes a support frame (31) and a support cylinder (32), wherein the support frame (31) is fixedly connected to the upper surface of the vehicle frame (21), and the support cylinder (32) is installed at the upper end of the support frame (31), and a plurality of groups of adjustment roller members (33) for supporting the ends of the anti-seepage membrane bearing rods (100) are arranged in an annular manner and equidistantly on the inner side of the support cylinder (32); The fixing assembly (6) comprises a bottom plate (61) and a film clamping member (62), wherein the bottom plate (61) is detachably mounted on one side of the substrate (11), and the film clamping member (62) is mounted on one side of the upper surface of the bottom plate (61), and a fixed film pressing roller (63) is mounted on the side of the upper surface of the bottom plate (61) close to the substrate (11); The fixed film pressing roller (63) includes a stand (631) and a fixed disc (632), wherein the stand (631) is fixedly connected to the upper surface of the bottom plate (61) and close to the side of the base plate (11), and the fixed disc (632) is fixedly connected to the upper end of the stand (631), and the outer side of the fixed disc (632) is rotatably connected to a rotating disc (633), and the upper end of the rotating disc (633) is fixedly connected to a support arm (634), and the support arm (634) is fixedly connected to the upper end of the rotating disc (633). ) is rotatably connected to a second film pressing roller (635) at one end away from the rotating disc (633), a limiting hole (6321) and a limiting hole (6322) are provided on one side of the fixed disc (632), a movable hole (6331) is provided on the side of the rotating disc (633), and a positioning member (636) for limiting the rotation of the support arm (634) is installed inside the movable hole (6331), and the positioning member (636) includes a limiting pin (6361) and a cylinder ( 6362), the limit pin (6361) is slidably connected to the inside of the movable hole (6331), the cylinder (6362) is fixedly connected to the side of the rotating disk (633) and is connected to the movable hole (6331), the side of the limit pin (6361) close to the cylinder (6362) is fixedly connected to a short spring (6363), and the end of the short spring (6363) away from the limit pin (6361) is fixedly connected to the inside of the cylinder (6362) and away from the rotating disk. At one end of the disc (633), a fixing bolt (6364) is threadedly connected to the side of the cylinder (6362) away from the rotating disc (633), wherein when the head of the limiting pin (6361) elastically abuts against the limiting hole 1 (6321), the second film pressing roller (635) is located directly above the bottom plate (61), and when the head of the limiting pin (6361) elastically abuts against the limiting hole 2 (6322), the second film pressing roller (635) presses the anti-seepage membrane tightly against the dam ground.

2. The water conservancy dam anti-seepage membrane laying device according to claim 1, characterized in that: The front side of the base plate (11) is hinged with an inclined plate (12), and two groups of locks (13) for closing the inclined plate (12) are symmetrically installed on the front side of the upper surface of the base plate (11). Limiting strips (14) for providing positioning for the laying trolley (2) are fixedly connected to the left and right sides of the upper surface of the base plate (11). An anchor member (15) is detachably installed on the outer side of the base plate (11), and the anchor member (15) includes a C-shaped seat (151) and an L-shaped seat (152). The opening side of the C-shaped seat (151) is fixedly connected to the base plate (11) by bolts, and the L-shaped seat (152) is fixedly connected to the side of the C-shaped seat (151) away from the opening. The L-shaped seat (152) is movably connected to a ground nail (153). The sides of the two groups of base plates (11) away from each other are fixedly connected to a handrail frame (16), and the lower surface of the base plate (11) is fixedly connected to multiple groups of universal wheels (17).

3. The water conservancy dam anti-seepage membrane laying device according to claim 1, characterized in that: The support cylinder (32) comprises a lower semi-cylinder (321) and an upper semi-cylinder (322), wherein the lower semi-cylinder (321) is fixedly connected to the upper end of the support frame (31), and the upper semi-cylinder (322) is hinged to the upper end of the lower semi-cylinder (321), a limiting groove (3211) is penetrated through the side of the lower semi-cylinder (321) away from the hinged end, and a short stud (3221) is fixedly connected to the side of the upper semi-cylinder (322) away from the hinged end, wherein the short stud (3221) penetrates the limiting groove (3211) and is threadedly sleeved with a nut (3222).

4. The water conservancy dam anti-seepage membrane laying device according to claim 3, characterized in that: The walls of the lower semi-cylinder (321) and the upper semi-cylinder (322) are provided with a plurality of groups of elongated grooves (323) for mounting an adjusting roller member (33). The adjusting roller member (33) comprises two groups of vertical rails (331). The upper ends of the two groups of vertical rails (331) are fixedly connected to the left and right sides of the elongated groove (323), respectively. The lower ends of the two groups of vertical rails (331) are fixedly provided with a fixing seat (332). A threaded hole (3321) is provided in the middle of the surface of the fixing seat (332). The two groups of vertical rails (331) are slidably connected to each other. A movable block (333) is fixedly connected to a C-shaped roller frame (334) at its upper end, a small roller (335) is rotatably connected to the inner side of the C-shaped roller frame (334), a threaded long rod (336) is rotatably connected to the lower end of the movable block (333), the threaded long rod (336) is threadedly connected to the inside of the first threaded hole (3321), a positioning mark (337) is fixedly connected to the lower end of one side of the movable block (333), and a scale mark (3311) that matches the positioning mark (337) is provided on one side of the vertical rail (331).

5. The water conservancy dam anti-seepage membrane laying device according to claim 1, characterized in that: The elastic film pressing roller (4) includes a right-angle frame (41), a slide rail seat (42), a support rod (43) and a film pressing roller (44), wherein the right-angle frame (41) is fixedly connected to the rear side of the upper surface of the vehicle frame (21), the front end of the slide rail seat (42) is fixedly connected to the lower surface of the transverse side of the right-angle frame (41), the support rod (43) is hinged to the front end of the lower surface of the slide rail seat (42), the film pressing roller (44) is rotatably connected to the lower end of the support rod (43), the middle position of the rear side of the support rod (43) is hinged with an inclined rod (45), the end of the inclined rod (45) away from the support rod (43) is hinged with a slider (46), and the slider (46) is slidably connected to the inside of the slide rail seat (42). The rear side of the slider (46) is connected to an elastic member (47), and the elastic member (47) is located inside the slide rail seat (42). The elastic member (47) includes an outer sleeve (471), a slide rod (472) and a long spring (473). The outer sleeve (471) is fixedly connected to the rear side of the slider (46), and the slide rod (472) is slidably connected to the rear end of the outer sleeve (471). The long spring (473) is located inside the outer sleeve (471), and the front end of the long spring (473) is fixedly connected to the front end of the inner side of the outer sleeve (471). The rear end of the long spring (473) is fixedly connected to the front end of the slide rod (472). The front side of the slide rail seat (42) is threadedly connected to an adjusting rod (48).

6. The water conservancy dam anti-seepage membrane laying device according to claim 1, characterized in that: The paving trolley (2) further comprises four groups of wheels (22) symmetrically mounted on the left and right sides of the vehicle frame (21); a sleeve seat (23) is fixedly connected to the rear side of the vehicle frame (21); a pull ring (24) is connected to the inner thread of the sleeve seat (23); the traction assembly (5) comprises a winding drum (51) and two groups of support seats (53); a traction rope (511) is wound around the outer side of the winding drum (51); one end of the traction rope (511) is fixedly connected to the winding drum (51); the other end of the traction rope (511) is connected to the pull ring (24) via a lock; the center positions on both sides of the winding drum (51) are fixedly connected to the left and right sides of the vehicle frame (21); and the pull ring (24) is connected to the left and right sides of the vehicle frame (21). Both are fixedly connected with shafts (52), and the two groups of shafts (52) are rotatably connected to the two groups of support seats (53) respectively. The lower ends of the two groups of support seats (53) are fixedly connected to the rear side of the upper surface of the frame (21). The shafts (52) on the side where the two groups of winding drums (51) are away from each other are fixedly connected with cranks (54), and the shafts (52) on the side where the two groups of winding drums (51) are close to each other are fixedly connected with connecting sleeves (55). The two ends of the telescopic shaft (9) are respectively fixed with the two groups of connecting sleeves (55) by bolts. The front sides of the two groups of support seats (53) are connected to limiting members (56).

7. The device for laying anti-seepage membrane for water conservancy dams according to claim 6, characterized in that: The limiting member (56) includes two groups of support columns (561), the two groups of support columns (561) are fixedly connected to the front sides of the two groups of support seats (53), and a longitudinal limiting group 1 (562) for initially limiting the longitudinal swing of the traction rope (511), a transverse limiting group (563) for limiting the transverse swing of the traction rope (511), and a longitudinal limiting group 2 (564) for secondary limiting the longitudinal swing of the traction rope (511) are installed between the two groups of support columns (561) from back to front.

8. The device for laying anti-seepage membrane for water conservancy dams according to claim 1, characterized in that: The bottom plate (61) is fixedly connected to a C-shaped seat (611) on one side close to the base plate (11), and the open side of the C-shaped seat (611) is fixedly connected to the base plate (11) by bolts. The four corners of the lower surface of the bottom plate (61) are fixedly connected to universal wheels (612). The film clamping member (62) includes a fixed plate (621), two groups of vertical columns (622) and a C-shaped film clamping seat (623). The fixed plate (621) is fixedly connected to the upper surface of the bottom plate (61). The two groups of vertical columns (622) are fixedly connected to the left and right sides of the upper surface of the bottom plate (61). The opening of the C-shaped film clamping seat (623) is set to the front side. The left and right ends of the rear side of the C-shaped film clamping seat (623) are fixedly connected to movable buckles (624). The two groups of movable buckles (624) are respectively slidably connected to the vertical columns on the corresponding side. The outside of the column (622) is fixed by bolts, and a threaded hole 2 (6231) is opened through the center position of the upper surface of the C-shaped diaphragm seat (623), and through holes (6232) are opened through the upper surface of the C-shaped diaphragm seat (623) and on the left and right sides of the threaded hole 2 (6231). A clamping plate (625) is longitudinally slidably provided inside the C-shaped diaphragm seat (623), and a short threaded rod (626) is rotatably connected to the center position of the upper surface of the clamping plate (625), and the short threaded rod (626) is threadedly connected to the inside of the threaded hole 2 (6231). The upper surface of the clamping plate (625) and on the left and right sides of the short threaded rod (626) are fixedly connected to the limiting rod (627), and the two groups of the limiting rods (627) are respectively slidably connected to the inside of the through hole (6232) on the corresponding side.

9. The device for laying anti-seepage membrane for water conservancy dams according to claim 1, characterized in that: The front telescopic beam (8) comprises a hollow front main beam (81) and two groups of front auxiliary beams (82), the two groups of front auxiliary beams (82) are respectively slidably connected to the left and right ends of the front main beam (81) and fixed therebetween by bolts, the ends of the two groups of front auxiliary beams (82) away from the front main beam (81) are fixedly connected to C-shaped seats (83), the open sides of the two groups of C-shaped seats (83) are respectively fixedly connected to the vehicle frame (21) on the corresponding side by bolts, the front side of the front main beam (81) is fixedly connected to a support column (84), the upper end of the support column (84) is fixedly connected to a front handlebar (85), the middle position of the rear side of the front handlebar (85) is fixedly connected to a crossbar (86) by bolts, and the rear end of the crossbar (86) is fixedly connected to a rear handlebar (87).

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