A laying device for geomembrane construction

Abstract

The application provides a laying device for geomembrane construction and belongs to the field of geomembrane laying. The technical scheme is: the laying device comprises a supporting frame, a lifting mechanism and a moving cutting mechanism arranged on the supporting frame, and a roll membrane laying mechanism; the supporting frame comprises a left side frame, a right side frame and a middle horizontal rod; the middle horizontal rod is provided with the moving cutting mechanism; the rear top of the left side frame and the right side frame is provided with an L-shaped supporting rod; the lifting mechanism is arranged on the L-shaped supporting rods; the lifting mechanism comprises winches arranged on the top of the L-shaped supporting rods; the cable ends of the winches are provided with lifting rods; the lifting rods are provided with geomembranes; the moving cutting mechanism comprises a moving assembly arranged on the middle horizontal rod; the moving assembly is provided with a mounting frame; the mounting frame is provided with a cutting knife and a metering wheel. The application has the advantages of simple structure, convenient use, efficient geomembrane laying, saved manpower and material resources, and greatly improved laying efficiency.

Description

Technical Field

[0001] This invention relates to the field of geomembrane laying, and more particularly to a laying device for geomembrane construction. Background Technology

[0002] In recent years, with the rapid development of infrastructure construction, the application of geosynthetic materials has received widespread attention in the field of civil engineering, especially in foundation pit engineering. Geomembranes, as an important waterproofing and seepage prevention material, are increasingly used. Currently, the laying method for geomembranes on foundation pit slopes generally adopts traditional manual cutting and multi-person collaborative dragging methods (such as...). Figure 19 and Figure 20 However, this dragging and laying method requires multiple people to work together, which is labor-intensive and time-consuming. At the same time, there is a risk of damage to the geomembrane during the dragging process. Summary of the Invention

[0003] The purpose of this invention is to provide a geomembrane laying device that is simple in structure, easy to use, and can efficiently lay geomembranes, saving a lot of manpower and material resources and greatly improving laying efficiency.

[0004] This invention is achieved through the following measures:

[0005] A geomembrane laying device for construction, characterized in that it includes a support frame, a lifting mechanism and a moving cutting mechanism disposed on the support frame, and a roll-up laying mechanism;

[0006] The support frame includes a left frame and a right frame. A middle crossbar is provided between the top middle positions of the left and right frames. The moving cutting mechanism is provided on the middle crossbar. L-shaped support rods are provided at the top rear ends of the left and right frames. The lifting mechanism is provided on the L-shaped support rods on both sides.

[0007] The lifting mechanism includes a winch installed on the top of the L-shaped support rods on both sides, a lifting rod installed at the cable end of the winch on both sides, and a geomembrane installed around the lifting rod;

[0008] The mobile cutting mechanism includes a mobile component mounted on the middle crossbar, a mounting frame mounted on the mobile component, a first electric cylinder and a second electric cylinder mounted on the mounting frame, a cutting blade mounted on the end of the electric push rod of the first electric cylinder, and a meter-counting wheel mounted on the end of the electric push rod of the second electric cylinder.

[0009] Preferably, an encoder and a counter are provided for use with the measuring wheel. The encoder and the counter are electrically connected, and a battery is provided to power the counter and the encoder (the encoder, measuring wheel, and counter and their connection are all existing technologies and will not be described in detail here).

[0010] The mobile cutting mechanism also includes a support plate disposed below the middle crossbar and between the left and right side frames on both sides. The support plate is disposed directly below the first and second electric cylinders. A through rectangular slot is provided on the support plate, which is arranged along the length of the support plate. The cutting blade is positioned corresponding to the rectangular slot.

[0011] The roll film laying mechanism includes a base plate, mounting vertical plates on both sides of the base plate, a rotating rod between the mounting vertical plates on both sides, a rectangular groove on the surface of the rotating rod, and a limit strip in the rectangular groove;

[0012] The free end of the geomembrane surrounding the lifting rod is positioned in the rectangular groove between the cutting blade and the support plate;

[0013] Preferably, the lifting mechanism lifts the finished geomembrane to a certain height, the membrane rolling and laying mechanism can roll up a certain length of geomembrane as needed, and facilitates the subsequent movement and laying of the geomembrane, and the moving cutting mechanism cooperates to cut the geomembrane.

[0014] The invention also has the following specific features:

[0015] Lifting sleeves are movably sleeved around both ends of the lifting rod, and annular baffles are provided near the ends of both ends of the lifting rod, with the lifting sleeves abutting against the annular baffles;

[0016] The cable end of the winch is provided with a hook, and the side wall of the lifting sleeve is provided with a hanging ring that works in conjunction with the hook.

[0017] Short crossbars are provided below the L-shaped support rod and on the sides of the left and right frames. A through groove is provided on the short crossbar, and the hook passes through the through groove and is connected to the hanging ring.

[0018] A pair of vertical plates are provided on both sides of the through groove and at the bottom of the short crossbar, and the lifting sleeve is disposed between the pair of vertical plates.

[0019] The two sides of the mounting vertical plates are symmetrically provided with horizontally arranged U-shaped mounting brackets, and the two ends of the rotating rod are set in the U-shaped mounting brackets;

[0020] A first drive motor is provided on the outer side of the mounting vertical plate on one side. The motor shaft end of the first drive motor passes through the mounting vertical plate and is set in the U-shaped mounting bracket, and a rectangular insert is provided therein. A rectangular slot is opened at the end of the rotating rod near the first drive motor, and the rectangular insert is set in the rectangular slot.

[0021] The U-shaped mounting bracket has through-holes on both sides of the frame at the opening position, and a limit pin is provided in the limit pin. The rotating rod is provided between the limit pin and the U-shaped mounting bracket.

[0022] The bottom of the opening of the U-shaped mounting brackets on both sides is provided with an inclined guide plate.

[0023] The electric push rod of the first electric cylinder is provided with an end plate, the bottom of the end plate is provided with the cutting blade, and a number of limiting pressure rollers are provided on both sides of the cutting blade and the bottom of the end plate;

[0024] The cutting blade has a pointed tip at the bottom and blades on both sides of its edge;

[0025] The electric push rod of the second electric cylinder is provided with an elastic rod at its end, and a meter-counting wheel is provided at the end of the elastic rod;

[0026] The elastic rod includes a top-closed outer sleeve. The top of the elastic rod is adjacent to the electric push rod of the second electric cylinder. An annular end plate is provided on the inner side of the bottom of the elastic rod. An inner telescopic rod is inserted into the outer sleeve. The measuring wheel is provided at one end of the inner telescopic rod. The inner telescopic rod passes through the annular end plate and is located inside the outer sleeve. An inner baffle is provided. A spring is provided between the inner baffle and the inner wall of the top of the outer sleeve. The inner baffle abuts against the inner side of the annular end plate.

[0027] A pair of limiting slots are symmetrically opened on both sides of the inner edge of the annular end plate. A pair of limiting strips are provided on both sides of the outer wall of the inner telescopic rod corresponding to the limiting slots. The limiting strips are set in the limiting slots. By setting the limiting slots and the limiting strips, the inner telescopic rod can be prevented from rotating during the extension and retraction process, thereby ensuring that the position of the meter wheel remains unchanged.

[0028] Support rollers are provided on both sides of the support plate in the width direction.

[0029] A guide roller is provided between the left and right side frames on both sides, and the guide roller is located between the lifting mechanism and the support plate;

[0030] The middle crossbar, the support plate, and the guide roller are arranged in descending order of height.

[0031] The free end of the geomembrane surrounding the lifting rod passes sequentially between the guide roller, the cutting blade, and the support plate, and is positioned between the pressure strip and the rectangular groove.

[0032] The crossbar is provided with rectangular sleeves at both ends, and the rectangular sleeves on both sides are respectively fixedly installed on the outer periphery of the top frame of the left and right frames.

[0033] Mounting seats are provided on both sides of the rectangular sleeves, and a lead screw is provided between the two mounting seats. A second drive motor is provided on one of the mounting seats. The second drive motor is connected to the lead screw through a coupling. A limit slide rail is provided on the middle crossbar. A limit slider is provided on the limit slide rail. A lead screw slider is provided on the limit slider. The lead screw slider is located around the lead screw. The mounting bracket is provided on the side of the limit slider.

[0034] The limiting pressure strip has through mounting holes at both ends, and the bottom of the rectangular groove has a mounting threaded hole corresponding to the mounting through hole. Mounting bolts are provided in the mounting through hole and the mounting threaded hole.

[0035] The bottom of the base plate is provided with several casters, and the bottom of the left and right frames is provided with a base support plate, on which a weight is provided.

[0036] When laying the geomembrane, first measure the length of the geomembrane to be laid according to the slope of the foundation pit on site. Then, transport the finished geomembrane to one side of the support frame. Pass the lifting rod through the cylinder in the center of the finished geomembrane. Then, transport the finished geomembrane to the bottom of the winch. Put the lifting sleeve on both ends of the lifting rod. Connect the hook of the winch to the hanging ring of the lifting sleeve. Start the winches on both sides to lift the finished geomembrane. After the lifting sleeve enters between the vertical plates on both sides and abuts against the bottom of the short crossbar, the winch stops lifting.

[0037] The membrane laying mechanism is pushed between the left and right frames and the casters are locked. Then, the free end of the finished geomembrane is pulled, and the free end of the finished geomembrane is sequentially passed around the bottom of the guide roller and the top of the support plate before being placed in the rectangular groove (initially, the rectangular groove is positioned at the top). The pressure strip is installed to press the geomembrane firmly. Then, the second electric cylinder is activated, pushing the measuring wheel downwards to contact the geomembrane (the initial position of the mounting frame is in the middle of the crossbar). The elastic rod maintains continuous contact between the measuring wheel and the geomembrane. Then, the first drive motor is activated, driving the rotating rod to rotate clockwise to wind up the geomembrane.

[0038] When the geomembrane is rolled up, the measuring wheel rotates, and the length of the rolled-up geomembrane can be displayed by the counter of the rotating measuring wheel. When the geomembrane is rolled up to the specified length, the first drive motor stops working, the second electric cylinder drives the measuring wheel to reset, the second electric cylinder drives the cutting blade to descend, the front end of the cutting blade penetrates the geomembrane and enters the rectangular through groove, the limiting pressure roller squeezes and limits the geomembrane, and then the second drive motor drives the cutting blade to move left and right to cut the geomembrane. After the cutting is completed, the second electric cylinder resets.

[0039] After the geomembrane is rolled up, the workers push the roll-up laying mechanism to the designated position (so that the guide plate faces the inside of the foundation pit), remove the limiting pins on both sides, tighten the ends of the rolled geomembrane, push the rotating rod away from the U-shaped mounting frame, and let the rotating rod roll down along the slope of the foundation pit. After the rotating rod rolls down to the bottom of the foundation pit, the workers fully spread the rolled geomembrane, remove the pressure strip, and bring the rotating rod back, thereby completing the laying of the geomembrane on the slope of the foundation pit.

[0040] After the rotating rod is brought back, it is inserted into the U-shaped mounting brackets on both sides, and the rectangular insert is inserted into the rectangular slot. The limiting pin is reset, and the membrane laying mechanism is pushed back to continue rolling up the geomembrane for laying the geomembrane on the foundation pit slope.

[0041] The beneficial effects of this invention are: simple structure, easy to use, efficient laying of geomembrane, saving a lot of manpower and material resources, and greatly improving laying efficiency. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 1 .

[0043] Figure 2 This is a structural schematic diagram of the main view of an embodiment of the present invention.

[0044] Figure 3 for Figure 2 A magnified view of part A in the middle.

[0045] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 2 .

[0046] Figure 5 for Figure 4 A magnified view of part B in the middle.

[0047] Figure 6 This is a schematic diagram of the structure of the left view of an embodiment of the present invention.

[0048] Figure 7 This is a schematic diagram of the overall structure of an embodiment of the present invention. Figure 3.

[0049] Figure 8 for Figure 7 A magnified view of part C in the middle.

[0050] Figure 9 This is a schematic diagram of the structure of the geomembrane under the cutting state in an embodiment of the present invention.

[0051] Figure 10 for Figure 9 A magnified view of part D in the middle.

[0052] Figure 11 This is a schematic diagram of the lifting rod in an embodiment of the present invention.

[0053] Figure 12 This is a schematic diagram of the overall structure of the film laying mechanism in an embodiment of the present invention.

[0054] Figure 13 This is a schematic diagram of the main view of the film laying mechanism in an embodiment of the present invention.

[0055] Figure 14 for Figure 13 A magnified view of part E in the middle.

[0056] Figure 15 This is a schematic diagram of the overall structure of the rotating rod in an embodiment of the present invention.

[0057] Figure 16 This is a schematic diagram of the structure of the roll film laying mechanism for installing push-pull handrails in an embodiment of the present invention.

[0058] Figure 17 This is a schematic diagram of the internal structure of the elastic rod in an embodiment of the present invention.

[0059] Figure 18 This is a schematic diagram of the elastic rod from below in an embodiment of the present invention.

[0060] Figure 19 Background technology on-site construction illustration Figure 1 .

[0061] Figure 20 Background technology on-site construction illustration Figure 2 .

[0062] The attached diagram is labeled as follows: 1. Right side frame; 2. Left side frame; 3. Middle crossbar; 301. Mounting base; 302. Second drive motor; 4. Lifting mechanism; 5. Moving cutting mechanism; 6. Geomembrane; 7. Roll-up laying mechanism; 8. Limiting slide rail; 9. Lead screw; 10. Lifting rod; 1001. Annular baffle; 11. Support plate; 1101. Rectangular through groove; 1102. Support roller; 12. Guide roller; 13. Base plate; 1301. Universal wheel; 1302. Push-pull handrail; 14. Mounting vertical plate; 15. Rotating rod; 1501. Rectangular slot; 1502. Rectangular groove; 16. Lead screw slider; 17. Limiting slider; 18. First motor 19. Cylinder; 20. End plate; 21. Limiting pressure roller; 22. Cutting knife; 23. Second electric cylinder; 24. Elastic rod; 25. Outer sleeve; 26. Inner telescopic rod; 27. Inner baffle; 28. Annular end plate; 29. ​​Spring; 20. Limiting slot; 20. Limiting strip; 21. Meter wheel; 22. L-shaped support rod; 23. Short crossbar; 24. Vertical plate; 25. Through slot; 26. Winch; 27. Hook; 28. Lifting sleeve; 29. ​​Hanging ring; 30. Pressure strip; 31. Guide plate; 32. First drive motor; 33. Rectangular insert block; 34. U-shaped mounting bracket; 35. Limiting pin. Detailed Implementation

[0063] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0064] See Figures 1-18 A geomembrane laying device includes a support frame, a lifting mechanism 4 and a moving cutting mechanism 5 mounted on the support frame, and a roll-up laying mechanism 7.

[0065] The support frame includes a left frame 2 and a right frame 1. A middle crossbar 3 is provided between the top middle positions of the left frame 2 and the right frame 1. A moving cutting mechanism 5 is provided on the middle crossbar 3. An L-shaped support rod 25 is provided at the top rear end of the left frame 2 and the right frame 1. A lifting mechanism 4 is provided on the L-shaped support rods 25 on both sides.

[0066] The lifting mechanism 4 includes a winch 27 set on the top of the L-shaped support rods 25 on both sides, a lifting rod 10 is set at the cable end of the winch 27 on both sides, and a geomembrane 6 is set around the lifting rod 10.

[0067] The mobile cutting mechanism 5 includes a mobile component mounted on the middle crossbar 3. The mobile component is equipped with a mounting frame, and the mounting frame is equipped with a first electric cylinder 18 and a second electric cylinder 22. The electric push rod end of the first electric cylinder 18 is equipped with a cutting blade 21, and the electric push rod end of the second electric cylinder 22 is equipped with a meter counting wheel 24.

[0068] Preferably, an encoder and a counter are provided for use with the measuring wheel 24. The encoder and the counter are electrically connected, and a battery is provided to power the counter and the encoder (the encoder, measuring wheel 24 and the counter and their connection are all existing technologies and will not be described in detail here).

[0069] The mobile cutting mechanism 5 also includes a support plate 11 located below the middle crossbar 3 and between the left side frame 2 and the right side frame 1 on both sides. The support plate 11 is located directly below the first electric cylinder 18 and the second electric cylinder 22. A through rectangular slot 1101 is provided on the support plate 11. The rectangular slot 1101 is arranged along the length of the support plate 11. The cutting blade 21 is positioned corresponding to the rectangular slot 1101.

[0070] The roll film laying mechanism 7 includes a base plate 13, mounting vertical plates 14 are provided on both sides of the base plate 13, and a rotating rod 15 is provided between the mounting vertical plates 14 on both sides. A rectangular groove 1502 is opened on the surface of the rotating rod 15, and a limit strip 29 is provided in the rectangular groove 1502.

[0071] The free end of the geomembrane 6 surrounding the lifting rod 10 is set in the rectangular groove 1502 between the cutting blade 21 and the support plate 11;

[0072] Preferably, the lifting mechanism 4 lifts the finished geomembrane 6 to a certain height, and the membrane laying mechanism 7 can roll up a certain length of geomembrane 6 as needed, and facilitate the subsequent movement and laying of the geomembrane 6. The moving cutting mechanism 5 cooperates to cut the geomembrane 6.

[0073] Lifting sleeves 28 are movably sleeved around both ends of the lifting rod 10. Annular baffles 1001 are provided near the ends of both ends of the lifting rod 10, and the lifting sleeves 28 abut against the annular baffles 1001.

[0074] The cable end of the winch 27 is provided with a hook 2701, and the side wall of the lifting sleeve 28 is provided with a hanging ring 2801 that works in conjunction with the hook 2701.

[0075] Short crossbars 26 are provided below the L-shaped support rod 25, on the left side of the frame 2 and the right side of the frame 1. A through groove 2602 is provided on the short crossbar 26, and a hook 2701 passes through the through groove 2602 and is connected to the hanging ring 2801.

[0076] A pair of vertical plates 2601 are provided on both sides of the through groove 2602 and at the bottom of the short crossbar 26, and the lifting sleeve 28 is located between the pair of vertical plates 2601.

[0077] The two sides of the vertical mounting plate 14 are symmetrically provided with horizontally arranged U-shaped mounting brackets 32, and the two ends of the rotating rod 15 are set in the U-shaped mounting brackets 32;

[0078] A first drive motor 31 is provided on the outer side of the mounting vertical plate 14 on one side. The motor shaft end of the first drive motor 31 passes through the mounting vertical plate 14 and is set in the U-shaped mounting bracket 32, and is provided with a rectangular insert 3101. A rectangular slot 1501 is opened at one end of the rotating rod 15 near the first drive motor 31, and the rectangular insert 3101 is set in the rectangular slot 1501.

[0079] The U-shaped mounting bracket 32 ​​has corresponding through-hole limit holes on both sides of the frame at the opening position. Limit pins 33 are provided in the limit holes, and a rotating rod 15 is provided between the limit pins 33 and the U-shaped mounting bracket 32.

[0080] The bottom of the opening of the U-shaped mounting brackets 32 on both sides is provided with inclined guide plates 30.

[0081] The electric push rod end of the first electric cylinder 18 is provided with an end plate 19, the bottom of the end plate 19 is provided with a cutting blade 21, and several limiting pressure rollers 20 are provided on both sides of the cutting blade 21 and the bottom of the end plate 19.

[0082] The bottom of the cutting blade 21 is provided with a pointed tip, and the two sides of the cutting blade 21 are provided with cutting edges;

[0083] The end of the electric push rod of the second electric cylinder 22 is provided with an elastic rod 23, and the end of the elastic rod 23 is provided with a meter-counting wheel 24;

[0084] The elastic rod 23 includes a top-closed outer sleeve 2301. The top of the elastic rod 23 is adjacent to the electric push rod of the second electric cylinder 22. An annular end plate 2304 is provided on the inner side of the bottom of the elastic rod 23. An inner telescopic rod 2302 is inserted into the outer sleeve 2301. A meter-counting wheel 24 is provided at one end of the inner telescopic rod 2302. The inner telescopic rod 2302 passes through the annular end plate 2304 and is located inside the outer sleeve 2301. An inner baffle 2303 is provided. A spring 2305 is provided between the inner baffle 2303 and the inner wall of the top of the outer sleeve 2301. The inner baffle 2303 abuts against the inner side of the annular end plate 2304.

[0085] A pair of limiting slots 2306 are symmetrically opened on both sides of the inner edge of the annular end plate 2304. A pair of limiting strips 2307 are provided on both sides of the outer wall of the inner telescopic rod 2302 corresponding to the limiting slots 2306. The limiting strips 2307 are set in the limiting slots 2306. By setting the limiting slots 2306 and the limiting strips 2307, the inner telescopic rod 2302 can be prevented from rotating during the extension and retraction process, thereby ensuring that the position of the meter wheel 24 remains unchanged.

[0086] Support rollers 1102 are provided on both sides of the support plate 11 in the width direction.

[0087] A guide roller 12 is provided between the left side frame 2 and the right side frame 1 on both sides. The guide roller 12 is located between the lifting mechanism 4 and the support plate 11.

[0088] The positions of the crossbar 3, support plate 11 and guide roller 12 are arranged from high to low;

[0089] The free end of the geomembrane 6 surrounding the lifting rod 10 passes sequentially between the guide roller 12, the cutting blade 21 and the support plate 11 and is positioned between the pressure strip 29 and the rectangular groove 1502.

[0090] Rectangular sleeves are provided at both ends of the middle crossbar 3, and the two rectangular sleeves are fixedly installed on the outer perimeter of the top frame of the left side frame 2 and the right side frame 1, respectively.

[0091] Mounting seats 301 are provided on both rectangular sleeves, and a lead screw 9 is provided between the two mounting seats 301. A second drive motor 302 is provided on one mounting seat 301. The second drive motor 302 is connected to the lead screw 9 through a coupling. A limit slide rail 8 is provided on the middle crossbar 3. A limit slider 17 is provided on the limit slide rail 8. A lead screw slider 16 is provided on the limit slider 17. The lead screw slider 16 is located around the lead screw 9. A mounting bracket is provided on the side of the limit slider 17.

[0092] The limiting pressure strip 29 has through mounting holes at both ends, and the bottom of the rectangular groove 1502 has a mounting threaded hole corresponding to the mounting through hole. Mounting bolts are installed in the mounting through hole and the mounting threaded hole.

[0093] The bottom of the base plate 13 is provided with several casters 1301, and the bottom of the left frame 2 and the right frame 1 is provided with bottom support plates, and the bottom support plates are provided with weights.

[0094] When laying the geomembrane 6, first measure the length of the geomembrane 6 to be laid according to the slope of the foundation pit on site. Then, transport the finished geomembrane 6 to one side of the support frame. Pass the lifting rod 10 through the cylinder in the center of the finished geomembrane 6. Then, transport the finished geomembrane 6 to the bottom of the winch 27. Sleeve the lifting sleeve 28 on both ends of the lifting rod 10. Connect the hook 2701 of the winch 27 to the hanging ring 2801 of the lifting sleeve 28. Start the winches 27 on both sides to lift the finished geomembrane 6. After the lifting sleeve 28 enters between the vertical plates 2601 on both sides and abuts against the bottom of the short crossbar 26, the winch 27 stops lifting.

[0095] Push the membrane laying mechanism 7 between the left frame 2 and the right frame 1 and lock the universal wheel 1301. Then pull the free end of the finished geomembrane 6, and place the free end of the finished geomembrane 6 into the rectangular groove 1502 after passing it around the bottom of the guide roller 12 and the top of the support plate 11 (initially, the rectangular groove 1502 is positioned at the top). Install the pressure strip 29 to press the geomembrane 6 tightly. Then start the second electric cylinder 22, which pushes the measuring wheel 24 down to make contact with the geomembrane 6 (the initial position of the mounting frame is in the middle of the crossbar 3). The elastic rod 23 keeps the measuring wheel 24 in continuous contact with the geomembrane 6. Then start the first drive motor 31, which drives the rotating rod 15 to rotate clockwise to wind up the geomembrane 6.

[0096] When the geomembrane 6 is rolled up, the meter counter 24 rotates. The counter can display the length of the geomembrane 6 when the meter counter 24 rotates. When the geomembrane 6 is rolled up to the specified length, the first drive motor 31 stops working, the second electric cylinder 22 drives the meter counter 24 to reset, and the second electric cylinder 22 drives the cutting blade 21 to descend. The front end of the cutting blade 21 penetrates the geomembrane 6 and enters the rectangular through groove 1101. The limiting pressure roller 20 forms a compression limit on the geomembrane 6. Then the second drive motor 302 drives the cutting blade 21 to move left and right to cut the geomembrane 6. After the cutting is completed, the second electric cylinder 22 resets.

[0097] After the geomembrane 6 is rolled up, the workers push the roll-up laying mechanism 7 to the designated position (so that the guide plate 30 faces the inside of the pit), remove the limit pins 33 on both sides, tighten the ends of the rolled geomembrane 6, push the rotating rod 15 away from the U-shaped mounting frame 32, and let the rotating rod 15 roll down along the slope of the pit. After the rotating rod 15 rolls down to the bottom of the pit, the workers fully spread the rolled geomembrane 6, remove the pressure strip 29, and bring the rotating rod 15 back, thus completing the laying of the geomembrane 6 on the slope of the pit.

[0098] After the rotating rod 15 is brought back, it is inserted into the U-shaped mounting brackets 32 on both sides, and the rectangular insert 3101 is inserted into the rectangular slot 1501. The limit pin 33 is reset, and the membrane laying mechanism 7 is pushed back to continue rolling up the geomembrane 6 for laying the geomembrane 6 on the foundation pit slope.

[0099] The technical features of this invention not described can be implemented by or using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this invention, and this invention is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention should also be within the protection scope of this invention.

Claims

1. A laying device for geomembrane construction, characterized in that, It includes a support frame, a lifting mechanism and a moving cutting mechanism mounted on the support frame, and a film laying mechanism; The support frame includes a left frame and a right frame. A middle crossbar is provided between the top middle positions of the left and right frames. The moving cutting mechanism is provided on the middle crossbar. L-shaped support rods are provided at the top rear ends of the left and right frames. The lifting mechanism is provided on the L-shaped support rods on both sides. The lifting mechanism includes a winch installed on the top of the L-shaped support rods on both sides, a lifting rod installed at the cable end of the winch on both sides, and a geomembrane installed around the lifting rod; The mobile cutting mechanism includes a mobile component mounted on the middle crossbar, a mounting frame mounted on the mobile component, a first electric cylinder and a second electric cylinder mounted on the mounting frame, a cutting blade mounted on the end of the electric push rod of the first electric cylinder, and a meter-counting wheel mounted on the end of the electric push rod of the second electric cylinder. The mobile cutting mechanism also includes a support plate disposed below the middle crossbar and between the left and right side frames on both sides. The support plate is disposed directly below the first and second electric cylinders. A through rectangular slot is provided on the support plate, which is arranged along the length of the support plate. The cutting blade is positioned corresponding to the rectangular slot. The roll film laying mechanism includes a base plate, mounting vertical plates on both sides of the base plate, a rotating rod between the mounting vertical plates on both sides, a rectangular groove on the surface of the rotating rod, and a limit strip in the rectangular groove; The free end of the geomembrane surrounding the lifting rod is positioned in the rectangular groove between the cutting blade and the support plate; Lifting sleeves are movably sleeved around both ends of the lifting rod, and annular baffles are provided near the ends of both ends of the lifting rod, with the lifting sleeves abutting against the annular baffles; The cable end of the winch is provided with a hook, and the side wall of the lifting sleeve is provided with a hanging ring that cooperates with the hook; Short crossbars are provided below the L-shaped support rod and on the sides of the left and right frames. A through groove is provided on the short crossbar, and the hook passes through the through groove and is connected to the hanging ring. A pair of vertical plates are provided on both sides of the through groove and at the bottom of the short crossbar, and the lifting sleeve is disposed between the pair of vertical plates; The two sides of the mounting vertical plates are symmetrically provided with horizontally arranged U-shaped mounting brackets, and the two ends of the rotating rod are set in the U-shaped mounting brackets; A first drive motor is provided on the outer side of the mounting vertical plate on one side. The motor shaft end of the first drive motor passes through the mounting vertical plate and is set in the U-shaped mounting bracket, and a rectangular insert is provided therein. A rectangular slot is opened at the end of the rotating rod near the first drive motor, and the rectangular insert is set in the rectangular slot. The U-shaped mounting bracket has through-holes on both sides of the frame at the opening position, and a limit pin is provided in the limit pin. The rotating rod is provided between the limit pin and the U-shaped mounting bracket. The bottom of the opening of the U-shaped mounting brackets on both sides is provided with an inclined guide plate; The electric push rod of the first electric cylinder is provided with an end plate, the bottom of the end plate is provided with the cutting blade, and a plurality of limiting pressure rollers are provided on both sides of the cutting blade and the bottom of the end plate; The cutting blade has a pointed tip at the bottom and blades on both sides of its edge. Support rollers are provided on both sides of the support plate in the width direction; A guide roller is provided between the left and right side frames on both sides, and the guide roller is located between the lifting mechanism and the support plate; The middle crossbar, the support plate, and the guide roller are arranged in descending order of height. The free end of the geomembrane surrounding the lifting rod passes sequentially between the guide roller, the cutting blade, and the support plate, and is positioned between the pressure strip and the rectangular groove. The crossbar is provided with rectangular sleeves at both ends, and the rectangular sleeves on both sides are respectively fixedly installed on the outer periphery of the top frame of the left and right frames. Mounting seats are provided on both sides of the rectangular sleeves, and a lead screw is provided between the two mounting seats. A second drive motor is provided on one mounting seat. The second drive motor is connected to the lead screw through a coupling. A limit slide rail is provided on the middle crossbar. A limit slider is provided on the limit slide rail. A lead screw slider is provided on the limit slider. The lead screw slider is located around the lead screw. The mounting bracket is provided on the side of the limit slider. The limiting pressure strip has through mounting holes at both ends, and the bottom of the rectangular groove has a mounting threaded hole corresponding to the mounting through hole. Mounting bolts are provided in the mounting through hole and the mounting threaded hole. The bottom of the base plate is provided with several casters, and the bottom of the left and right frames is provided with a base support plate, on which a weight is provided.

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