Adjustable anti-seepage film laying machine of earth rock cofferdam back slope type anti-seepage dam

Abstract

The invention relates to the technical field of impermeable membrane laying, and discloses an adjustable impermeable membrane laying machine of an earth rock cofferdam back slope type impermeable dam, which comprises a workbench, a moving device, a membrane spreading device and a membrane laying device, the moving device comprises a first bracket, a coupler, a first rotating shaft and a moving wheel; the film spreading device comprises a second support, a film spreading auxiliary roller, a second bearing, a third rotating shaft, a third chain wheel, a second chain and a fourth chain wheel, and the film laying device comprises a vertical plate, a first bearing, a mounting block, a fixing plate, a first spring, a limiting plate, a positioning plate, a first threaded hole, a first bolt, a first chain wheel, a first chain, a second chain wheel and a laying roller. The device further comprises a film pressing device, a film cutting device and a supporting device. According to the device, through linkage adjustment of the rotating speed of the first rotating shaft and the rotating speed of the film spreading auxiliary roller, the laying efficiency and quality are effectively and cooperatively improved, the precision of a notch is improved through the cutting assembly, and hot melting of an anti-seepage film in the later period is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of anti-seepage membrane laying, in particular to an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam. Background Art

[0002] In the construction of back-slope anti-seepage dams with earth-rock cofferdams, the laying quality of the anti-seepage membrane is of vital importance. Currently, the commonly used anti-seepage membrane laying machines are generally equipped with a first rotating shaft and a membrane-unfolding auxiliary roller to complete the unfolding and laying of the anti-seepage membrane. However, these two components mostly lack a tight and effective linkage mechanism during actual operation, and it is common for them to be adjusted independently. The existing anti-seepage membrane laying machines have obvious defects: when the speed of the first rotating shaft changes, if the speed of the membrane-unfolding auxiliary roller cannot be adjusted synchronously, when the laying speed is accelerated, the membrane unfolding speed cannot keep up, which can easily cause the anti-seepage membrane to accumulate and wrinkle; when the laying speed is slowed down, the membrane may be pulled unsmoothly. When faced with different dam slope conditions and laying requirements, it is difficult to ensure that the anti-seepage membrane can always be unfolded and laid in an ideal state, affecting the overall anti-seepage effect and construction efficiency.

[0003] After the traditional anti-seepage membrane laying device is completed, the anti-seepage membrane needs to be cut manually with a knife. This not only increases the operation steps and prolongs the construction time, but may also cause the cut to be skewed or the membrane to tear due to uneven manual cutting force or inaccurate positioning, affecting the laying accuracy and sealing. When encountering obstacles and temporarily cutting the membrane, manual cutting is difficult to ensure a smooth cut, which can easily cause waste of membrane materials or difficulties in subsequent splicing, making it difficult to achieve efficient and continuous operation, thereby reducing construction efficiency and increasing quality risks. Summary of the Invention

[0004] In order to make up for the above shortcomings, the present invention provides an adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam, which aims to improve the problems that the speed of the auxiliary roller of the film spreading device cannot be synchronously adjusted, and the manual cutting of the anti-seepage membrane causes the cut to be skewed and the membrane torn.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam, comprising a workbench, a moving device, a membrane spreading device and a membrane laying device, wherein the workbench is provided with a connecting groove;

[0006] The moving device includes a first bracket, two sets of symmetrical first brackets are fixedly connected to the lower end of the workbench, two ends of the first bracket are fixedly connected to couplings, two corresponding couplings are respectively installed with a first rotating shaft, and both ends of one first rotating shaft are fixedly connected to a moving wheel;

[0007] The film spreading device includes a second bracket, the second bracket is fixedly connected to the side of the workbench, a third sprocket is sleeved on the first rotating shaft near one end of the second bracket, a second chain is sleeved on the third sprocket, a fourth sprocket is arranged on the inner side of the other end of the second chain, two groups of second bearings are fixedly connected between the two second brackets, a third rotating shaft is arranged between each group of second bearings, a film spreading auxiliary roller is sleeved on the third rotating shaft, and the fourth sprocket is sleeved on the third rotating shaft at the upper end;

[0008] The film laying device includes a first sprocket, which is sleeved on a first rotating shaft at one end of the second bracket, a first chain is sleeved on the first sprocket, the first chain passes through a connecting groove, and a second sprocket is provided at the end away from the first sprocket, the end of the workbench away from the first bracket is fixedly connected to a vertical plate, the inner side of the vertical plate is fixedly connected to a first bearing, the end of the first bearing away from the vertical plate is sleeved with a mounting block, and the end of the mounting block away from the first bearing is fixedly connected to a laying roller.

[0009] As a further description of the above technical solution:

[0010] It also includes a film cutting device, which includes a fourth bracket and a limiting rail. The fourth bracket is fixedly connected to the side of the workbench and is provided with a through hole. The limiting rail is fixedly connected to the second bracket. A limiting block is slidably connected between the two limiting rails. The lower end of the limiting block is fixedly connected to a cutting knife. The upper end of the limiting block is fixedly connected to a pressure rod. The upper end of the pressure rod is fixedly connected to a support spring. The pressure rod passes through the through hole provided by the fourth bracket.

[0011] As a further description of the above technical solution:

[0012] The cam is secured to the second end of the second support frame and is secured to the second end of the second support frame with respect to the cam.

[0013] As a further description of the above technical solution:

[0014] One end of the first rotating shaft away from the first spring is fixedly connected to a positioning plate. A first threaded hole penetrating the first rotating shaft is formed on the positioning plate. A first bolt is detachably connected to the first threaded hole.

[0015] As a further description of the above technical solution:

[0016] The first rotating shaft is fixedly connected to a fixing plate, the end of the fixing plate away from the mounting block is fixedly connected to a first spring, the end of the first spring away from the fixing plate is fixedly connected to a limiting plate, and the limiting plate is slidably connected to the first rotating shaft.

[0017] As a further description of the above technical solution:

[0018] A sliding groove is provided at the opposite end of the second bracket. The bottom end of the sliding groove is fixedly connected to the second spring. The upper end of the second spring is fixedly connected to the slider. The two sliders are fixedly connected to the two ends of the second bearing respectively.

[0019] As a further description of the above technical solution:

[0020] It also includes a supporting device, which includes a mounting plate. Two of the mounting plates are fixedly connected to the workbench. The opposite end of the mounting plate is fixedly connected to a fourth bearing. A fifth rotating shaft is arranged between the two fourth bearings. A supporting roller is sleeved on the fifth rotating shaft.

[0021] As a further description of the above technical solution:

[0022] A second threaded hole is formed on the second bracket, and a plurality of third threaded holes are formed on the rotating member. Second bolts are detachably connected in the second threaded holes and the third threaded holes.

[0023] As a further description of the above technical solution:

[0024] The working process of an adjustable anti-seepage membrane laying machine for a back slope anti-seepage dam with an earth-rock cofferdam is as follows:

[0025] S1: Install the anti-seepage membrane roll on the laying roller. The first spring pushes the anti-seepage membrane roll through the limit plate, so that it acts on the positioning plate, and puts the anti-seepage membrane from the support roller into the space between the two membrane-unrolling auxiliary rollers to fix the top of the anti-seepage membrane on the ground.

[0026] S2: Use a traction vehicle to move and lay the film. When the moving wheel rotates, it drives the first rotating shaft to rotate. The first rotating shaft drives the first sprocket to rotate. When the first sprocket rotates, it drives the second sprocket to rotate through the first chain. When the second sprocket rotates, it drives the laying roller to rotate. When the laying roller rotates, it drives the anti-seepage film roll to rotate and lay the film;

[0027] S3: The first rotating shaft rotates while driving the third sprocket to rotate. When the third sprocket rotates, it drives the fourth sprocket to rotate through the second chain. When the fourth sprocket rotates, it drives the upper film-spreading auxiliary roller to rotate. The lower film-spreading auxiliary roller pushes the slider upward through the spring. The slider then drives the lower film-spreading auxiliary roller to push upward, so that the two film-spreading auxiliary rollers squeeze the anti-seepage membrane.

[0028] S4: According to the width of the anti-seepage membrane, the third bracket is driven to rotate by the rotating part, the third bracket drives the sliding column to rotate through the rotating seat, the sliding column drives the film pressing wheel to rotate through the sliding rod, and the film pressing wheel squeezes the anti-seepage membrane in contact with the ground to make it fit more closely with the ground.

[0029] S5: After the anti-seepage membrane is laid to the preset position, press down the top of the pressure rod, the support spring is compressed, and the limit block moves downward along the limit track, driving the cutting knife to cut the anti-seepage membrane downward, thereby achieving rapid cutting of the anti-seepage membrane.

[0030] The present invention has the following beneficial effects:

[0031] 1. In the present invention, firstly, the first rotating shaft and the auxiliary film-unrolling roller are linked to adjust their rotation speeds, so that the two can maintain a coordinated rotation speed according to different construction scenarios and laying progress requirements. When laying on a large area of ​​dam slope and under tight construction schedule, the auxiliary film-unrolling roller will accelerate synchronously to ensure that the anti-seepage membrane can be quickly and evenly unrolled from the film roll and smoothly laid on the dam slope, avoiding the accumulation and wrinkling of the membrane caused by the mismatch between the two speeds, greatly improving the overall laying efficiency; at the same time, in some areas with high laying quality requirements and delicate operations, the auxiliary film-unrolling roller will also slow down, ensuring the flatness and fit of the unfolded anti-seepage membrane, so that each laying location can meet high standards, and effectively improving the laying efficiency and quality.

[0032] 2. In the present invention, the laid anti-seepage membrane can be cut at one time through the cutting assembly, which is more convenient to operate and can improve the accuracy of the incision, making it convenient to hot-melt the anti-seepage membrane in the later stage, and solving the problem of uneven manual cutting force or inaccurate positioning leading to skewed incisions and tearing of the membrane, which affects the laying accuracy and sealing.

[0033] 3. The sliding column, sliding rod and film pressing wheel installed at the bottom of the present invention apply a certain pressure to the anti-seepage membrane laid on the dam slope, which can tightly press the anti-seepage membrane on the dam slope surface. The designed third spring can effectively push up the film pressing wheel through the sliding rod when there are foreign objects such as stones at the lower end of the anti-seepage membrane, thereby preventing damage to the anti-seepage membrane. After being lifted up and down, the film pressing wheel can be reset due to the elasticity of the spring itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1The present invention proposes an adjustable anti-seepage membrane laying machine for the back slope anti-seepage dam of the earth and rock cofferdam. Figure 1 ;

[0035] Figure 2 The present invention proposes an adjustable anti-seepage membrane laying machine for the back slope anti-seepage dam of the earth and rock cofferdam. Figure 2 ;

[0036] Figure 3 A schematic diagram of a workbench of an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam proposed in the present invention;

[0037] Figure 4 This is a structural diagram of the first sprocket and the second sprocket of an adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope anti-seepage dam proposed by the present invention;

[0038] Figure 5 This is a structural diagram of the third and fourth sprockets of an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam proposed in the present invention;

[0039] Figure 6 This is a structural diagram of the second bearing and membrane-spreading auxiliary roller of an adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope anti-seepage dam proposed by the present invention;

[0040] Figure 7 This is a structural diagram of the second bracket of an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam proposed in the present invention;

[0041] Figure 8 This is a structural diagram of a membrane laying device of an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam proposed by the present invention;

[0042] Figure 9 This is a structural diagram of the third bracket of the adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of the earth-rock cofferdam proposed by the present invention;

[0043] Figure 10 This is a structural diagram of the membrane pressing wheel of an adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope anti-seepage dam proposed by the present invention;

[0044] Figure 11 This is a structural diagram of the support rollers of an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam proposed in the present invention;

[0045] Figure 12 This is a structural diagram of the membrane cutting device of an adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope anti-seepage dam proposed by the present invention.

[0046] Description of reference numerals:

[0047] 1. Workbench; 2. Moving device; 3. Film laying device; 4. Film spreading device; 5. Film pressing device; 6. Film cutting device; 7. Support device; 11. Connecting groove; 21. First bracket; 22. Coupling; 23. First rotating shaft; 24. Moving wheel; 301. Vertical plate; 302. First bearing; 303. Mounting block; 304. Fixing plate; 305. First spring; 306. Limiting plate; 307. Positioning plate; 308. First threaded hole; 309. First bolt; 310. First sprocket; 311. First chain; 312. Second sprocket; 313. Laying roller; 401. Second bracket; 402. Sliding groove; 403. Second spring; 404. Sliding block; 405. Second screw hole; Perforations; 406, film spreading auxiliary roller; 407, second bearing; 408, third rotating shaft; 409, third sprocket; 410, second chain; 411, fourth sprocket; 501, support block; 502, third bearing; 503, fourth rotating shaft; 504, rotating member; 505, third bracket; 506, third threaded hole; 507, second bolt; 508, rotating seat; 509, sliding column; 510, third spring; 511, sliding rod; 512, film pressing wheel; 61, cutting knife; 62, limit block; 63, pressure rod; 64, fourth bracket; 65, support spring; 66, limit track; 71, mounting plate; 72, fourth bearing; 73, fifth rotating shaft; 74, support roller. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] Example 1: Reference Figure 1-3The present invention provides an adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam: it includes a workbench 1, a moving device 2, a membrane spreading device 4 and a membrane laying device 3, the workbench 1 is provided with a connecting groove 11; the moving device 2 includes a first bracket 21, two sets of symmetrical first brackets 21 are fixedly connected to the lower end of the workbench 1, and the two ends of the first bracket 21 are fixedly connected to a coupling 22, and the two corresponding couplings 22 are both penetrated by a first rotating shaft 23, and the two ends of a first rotating shaft 23 are fixedly connected to a moving wheel 24; the membrane spreading device 4 includes a second bracket 401, the second bracket 401 is fixedly connected to the side of the workbench 1, a third sprocket 409 is sleeved on the first rotating shaft 23 near one end of the second bracket 401, a second chain 410 is sleeved on the third sprocket 409, and a fourth sprocket 411 is arranged on the inner side of the other end of the second chain 410, and the second brackets 401 are connected. Two groups of second bearings 407 are fixedly connected between them, and a third rotating shaft 408 is provided between each group of second bearings 401. The third rotating shaft 408 is sleeved with a film spreading auxiliary roller 406, and the fourth sprocket 411 is sleeved on the third rotating shaft 408 at the upper end; the film laying device 3 includes a first sprocket 310, the first sprocket 310 is sleeved on the first rotating shaft 23 at one end of the second bracket 401, and the first chain 311 is sleeved on the first sprocket 310, the first chain 311 passes through the connecting groove 11, and a second sprocket 312 is provided at the end away from the first sprocket 310, the end of the workbench 1 away from the first bracket 21 is fixedly connected to the vertical plate 301, the inner side of the vertical plate 301 is fixedly connected to the first bearing 302, the end of the first bearing 302 away from the vertical plate 301 is sleeved with a mounting block 303, and the end of the mounting block 303 away from the first bearing 302 is fixedly connected to the laying roller 313;

[0050] The first rotation axis 23 is fixedly connected to a fixing plate 304, and one end of the fixing plate 304 away from the mounting block 303 is fixedly connected to a first spring 305, and one end of the first spring 305 away from the fixing plate 304 is fixedly connected to a limiting plate 306, and the limiting plate 306 is slidably connected to the first rotation axis 23. This design can adapt to anti-seepage membrane rolls of various widths to prevent the anti-seepage membrane roll from moving left and right due to being too short, thereby making it not a straight line when laid; the first rotation axis 23 is fixedly connected to a positioning plate 307 at one end away from the first spring 305, and a first threaded hole 308 is provided on the positioning plate 307, which runs through the first rotation axis 23, and a first bolt 309 is detachably connected to the first threaded hole 308. This design can stably fix the anti-seepage membrane roll when it is installed on the first rotation axis 23; the opposite end of the second bracket 401 is provided with a sliding groove 40 2. The bottom end of the sliding groove 402 is fixedly connected to the second spring 403, and the upper end of the second spring 403 is fixedly connected to the slider 404. The two sliders 404 are fixedly connected to the two ends of the second bearing 407 respectively. This design can make the film-unfolding auxiliary roller 406 at the lower end always give the film-unfolding auxiliary roller 406 at the upper end an upward force when the thickness of the anti-seepage membrane changes, thereby achieving the effect of always clamping the anti-seepage membrane; it also includes a supporting device 7, the supporting device 7 includes a mounting plate 71, two mounting plates 71 are fixedly connected to the workbench 1, and the opposite end of the mounting plate 71 is fixedly connected to the fourth bearing 72, and a fifth rotating shaft 73 is provided between the two fourth bearings 72. A supporting roller 74 is sleeved on the fifth rotating shaft 73. This design can support the unfolded anti-seepage membrane through the designed supporting roller 74 to prevent the anti-seepage membrane from being damaged due to direct contact with the workbench 1;

[0051] The specific implementation is as follows: the anti-seepage membrane roll is installed on the laying roller 313, and the first spring 305 pushes the anti-seepage membrane roll through the limit plate 306, so that the positioning plate 307 on which it acts is placed, and the anti-seepage membrane is placed from the support roller 74 between the two membrane-unfolding auxiliary rollers 406, and the top of the anti-seepage membrane is fixed to the ground, and a traction vehicle is used to move and lay the membrane. When the moving wheel 24 rotates, it drives the first rotating shaft 23 to rotate, and the first rotating shaft 23 drives the first sprocket 310 to rotate. When the first sprocket 310 rotates, it drives the second sprocket 312 to rotate through the first chain 311. When the second sprocket 312 rotates, it drives the laying roller 313 to rotate. When the laying roller 313 rotates, it drives the anti-seepage membrane roll to rotate and lay the membrane. When the first rotating shaft 23 rotates, it drives the third sprocket 409 to rotate. When the third sprocket 409 rotates, it drives the fourth sprocket 411 to rotate through the second chain 410. When the fourth sprocket 411 rotates, it drives the upper membrane-unfolding auxiliary roller 406 to rotate, and the lower end The film-unfolding auxiliary roller 406 pushes the slider 404 upwards through the spring, and the slider 404 then drives the film-unfolding auxiliary roller 406 at the lower end to push upwards, so that the two film-unfolding auxiliary rollers 406 squeeze the anti-seepage membrane. Through the linkage adjustment of the first rotating shaft 23 and the rotation speed of the film-unfolding auxiliary roller 406, the two can maintain a coordinated and consistent rotation speed according to different construction scenarios and laying progress requirements. When laying a large area of ​​dam slope and the construction period is tight, the film-unfolding auxiliary rollers will accelerate synchronously to ensure that the anti-seepage membrane can be quickly and evenly unrolled from the film roll and smoothly laid on the dam slope, avoiding the accumulation and wrinkles of the membrane body caused by the mismatch between the speeds of the two, greatly improving the overall laying efficiency. At the same time, in some areas with high requirements on laying quality and requiring fine operation, the film-unfolding auxiliary rollers will also slow down, ensuring the flatness and fit of the anti-seepage membrane, so that the laying at each location can meet high standards, and achieving effective synergistic improvement in laying efficiency and quality.

[0052] Embodiment 2: It also includes a film pressing device 5, which includes a support block 501, two groups of support blocks 501 are fixedly connected to the end of the second bracket 401 away from the workbench 1, and two third bearings 502 are fixedly connected to one group of support blocks 501. A fourth rotating shaft 503 is arranged between the two corresponding third bearings 502, and the fourth rotating shaft 503 is sleeved with a rotating member 504. The rotating member 504 is fixedly connected to the third bracket 505, and the lower end of the third bracket 505 is fixedly connected to a rotating seat 508. The fourth rotating shaft 503 is fixedly connected to a sliding column 509 at one end away from the third bracket 505, and a sliding rod 511 is arranged in the sliding column 509. A film pressing wheel 512 is arranged at one end of the sliding rod 511 away from the sliding column 509, and a third spring 510 is fixedly connected to one end of the sliding rod 511 away from the film pressing wheel 512. The third spring 510 is connected to one end of the inner wall of the sliding column 509 away from the film pressing wheel 512.

[0053] A second threaded hole 405 is formed on the second bracket 401, and a plurality of third threaded holes 506 are formed on the rotating member 504. Second bolts 507 are detachably connected to the second threaded holes 405 and the third threaded holes 506. In this design, the film pressing device 5 is installed and removed through the second threaded holes 405, the third threaded holes and the second bolts 507. The positions of the two film pressing wheels 512 are adjusted according to the width of the anti-seepage membrane, thereby achieving film pressing operations on anti-seepage membranes of different widths.

[0054] The specific implementation is as follows: according to the width of the anti-seepage membrane, the third bracket 505 is driven to rotate by the rotating member 504, and the third bracket 505 drives the sliding column 509 to rotate through the rotating seat 508, and the sliding column 509 drives the film pressing wheel 512 to rotate through the sliding rod 511, and the film pressing wheel 512 squeezes the anti-seepage membrane in contact with the ground, so that it fits more closely with the ground. The sliding column 509, the sliding rod 511 and the film pressing wheel 512 installed at the bottom exert a certain pressure on the anti-seepage membrane laid on the dam slope, which can tightly compact the anti-seepage membrane on the surface of the dam slope, and the designed third spring 510 can effectively be pushed up by the film pressing wheel 512 through the sliding rod when there are foreign objects such as stones at the lower end of the anti-seepage membrane, to prevent damage to the anti-seepage membrane, and after lifting up and down, the film pressing wheel 512 can be reset due to the elasticity of the spring itself.

[0055] Example 3: It also includes a film cutting device 6, which includes a fourth bracket 64 and a limiting rail 66. The fourth bracket 64 is fixedly connected to the side of the workbench 1 and is provided with a through hole. The limiting rail 66 is fixedly connected to the second bracket 401. The two limiting rails 66 are slidably connected with a limiting block 62 in the middle. The lower end of the limiting block 62 is fixedly connected to a cutting knife 61, and the upper end of the limiting block 62 is fixedly connected to a pressure rod 63. The upper end of the pressure rod 63 is fixedly connected to a support spring 65, and the pressure rod 63 passes through the through hole provided in the fourth bracket 64.

[0056] The specific implementation method is as follows: After the anti-seepage membrane is laid to the preset position, the top of the pressure rod 63 is pressed downward, the support spring 65 is compressed, and the limit block 62 moves downward along the limit track 66, driving the cutting knife 61 to cut the anti-seepage membrane downward, thereby realizing rapid cutting of the anti-seepage membrane. A film cutting device 6 is provided on the anti-seepage membrane laying device, which can complete the precise cutting of the anti-seepage membrane in real time according to construction requirements during the laying process, without the need for manual secondary operation, significantly improving construction efficiency, and solving the problem of manual cutting of the anti-seepage membrane after laying, causing the incision to be tilted.

[0057] Working principle: The anti-seepage membrane roll is installed on the laying roller 313, and the first spring 305 pushes the anti-seepage membrane roll through the limit plate 306 to act on the positioning plate 307, and the anti-seepage membrane is placed from the support roller 74 between the two film-unfolding auxiliary rollers 406, and the top of the anti-seepage membrane is fixed on the ground. A traction vehicle is used to move and lay the membrane. When the moving wheel 24 rotates, it drives the first rotating shaft 23 to rotate, and the first rotating shaft 23 drives the first sprocket 310 to rotate. When the first sprocket 310 rotates, it drives the second sprocket 312 to rotate through the first chain 311. When the second sprocket 312 rotates, it drives the laying roller 313 to rotate. When the laying roller 313 rotates, it drives the anti-seepage membrane roll to rotate and lay the membrane. When the first rotating shaft 23 rotates, it drives the third sprocket 409 to rotate. When the third sprocket 409 rotates, it drives the fourth sprocket 411 to rotate through the second chain 410. When the fourth sprocket 411 rotates, it drives the upper film-spreading auxiliary roller 406 to rotate, and the lower film-spreading auxiliary roller 406 pushes the slider 404 upward through the spring, and the slider 404 then drives the lower film-spreading auxiliary roller 406 to push upward, so that the two film-spreading auxiliary rollers 406 squeeze the anti-seepage membrane. According to the width of the anti-seepage membrane, the third bracket 505 is driven to rotate through the rotating member 504, and the third bracket 505 drives the sliding column 509 to rotate through the rotating seat 508. The sliding column 509 drives the film pressing wheel 512 to rotate through the sliding rod 511. The film pressing wheel 512 squeezes the anti-seepage membrane in contact with the ground, so that it fits more closely to the ground. After the anti-seepage membrane is laid to the preset position, the top of the pressure rod 63 is pressed downward, the support spring 65 is compressed, and the limit block 62 moves downward along the limit track 66, driving the cutting knife 61 to cut the anti-seepage membrane downward, thereby achieving rapid cutting of the anti-seepage membrane.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustable anti-seepage membrane laying machine for a back-slope anti-seepage dam of an earth-rock cofferdam, comprising a workbench (1), a moving device (2), a membrane spreading device (4) and a membrane laying device (3), characterized in that: The workbench (1) is provided with a connecting groove (11); The moving device (2) comprises a first bracket (21), two groups of symmetrical first brackets (21) are fixedly connected to the lower end of the workbench (1), two ends of the first bracket (21) are fixedly connected to couplings (22), two corresponding couplings (22) are both penetrated by a first rotating shaft (23), and two ends of the first rotating shaft (23) are both fixedly connected to a moving wheel (24); The film spreading device (4) includes a second bracket (401), the second bracket (401) is fixedly connected to the side of the workbench (1), a third sprocket (409) is sleeved on the first rotating shaft (23) near one end of the second bracket (401), a second chain (410) is sleeved on the third sprocket (409), a fourth sprocket (411) is arranged on the inner side of the other end of the second chain (410), two groups of second bearings (407) are fixedly connected between the two second brackets (401), a third rotating shaft (408) is arranged between each group of second bearings (407), a film spreading auxiliary roller (406) is sleeved on the third rotating shaft (408), and the fourth sprocket (411) is sleeved on the third rotating shaft (408) at the upper end; The film laying device (3) includes a first sprocket (310), which is sleeved on a first rotating shaft (23) at one end of the second bracket (401), and a first chain (311) is sleeved on the first sprocket (310), which passes through a connecting groove (11), and a second sprocket (312) is provided at one end away from the first sprocket (310), and the end of the workbench (1) away from the first bracket (21) is fixedly connected to a vertical plate (301), and the inner side of the vertical plate (301) is fixedly connected to a first bearing (302), and the end of the first bearing (302) away from the vertical plate (301) is sleeved with a mounting block (303), and the end of the mounting block (303) away from the first bearing (302) is fixedly connected to a laying roller (313).

2. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of the earth-rock cofferdam according to claim 1, characterized in that: The invention also includes a film cutting device (6), the film cutting device (6) including a fourth bracket (64) and a limiting rail (66), the fourth bracket (64) is fixedly connected to the side of the workbench (1) and has a through hole, the limiting rail (66) is fixedly connected to the second bracket (401), and a limiting block (62) is slidably connected between the two limiting rails (66), the lower end of the limiting block (62) is fixedly connected to the cutting knife (61), the upper end of the limiting block (62) is fixedly connected to the pressure rod (63), the upper end of the pressure rod (63) is fixedly connected to the support spring (65), and the pressure rod (63) passes through the through hole opened in the fourth bracket (64).

3. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam according to claim 1, characterized in that: The film pressing device (5) further comprises a film pressing device (5), wherein the film pressing device (5) comprises a support block (501), two groups of the support blocks (501) are fixedly connected to one end of the second bracket (401) away from the workbench (1), two third bearings (502) are fixedly connected to each of the support blocks (501), a fourth rotating shaft (503) is provided between the two corresponding third bearings (502), a rotating member (504) is sleeved on the fourth rotating shaft (503), a third bracket (505) is fixedly connected to the rotating member (504), and the lower end of the third bracket (505) is fixedly connected to The rotating seat (508) is fixedly connected to a sliding column (509) at one end of the fourth rotating shaft (503) away from the third bracket (505), a sliding rod (511) is provided in the sliding column (509), a film pressing wheel (512) is provided at one end of the sliding rod (511) away from the sliding column (509), and a third spring (510) is fixedly connected to one end of the sliding rod (511) away from the film pressing wheel (512), and one end of the third spring (510) away from the sliding rod (511) is connected to one end of the inner wall of the sliding column (509) away from the film pressing wheel (512).

4. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam according to claim 1, characterized in that: A fixing plate (304) is fixedly connected to the first rotating shaft (23); one end of the fixing plate (304) away from the mounting block (303) is fixedly connected to a first spring (305); one end of the first spring (305) away from the fixing plate (304) is fixedly connected to a limiting plate (306); and the limiting plate (306) is slidably connected to the first rotating shaft (23).

5. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam according to claim 1, characterized in that: One end of the first rotating shaft (23) away from the first spring (305) is fixedly connected to a positioning plate (307), and a first threaded hole (308) penetrating the first rotating shaft (23) is provided on the positioning plate (307), and a first bolt (309) is detachably connected to the first threaded hole (308).

6. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam according to claim 1, characterized in that: The opposite ends of the second bracket (401) are each provided with a sliding groove (402), the bottom end of the sliding groove (402) is fixedly connected to the second spring (403), the upper end of the second spring (403) is fixedly connected to the slider (404), and the two sliders (404) are respectively fixedly connected to the two ends of the second bearing (407).

7. The adjustable anti-seepage membrane laying machine for the back slope type anti-seepage dam of earth-rock cofferdam according to claim 1, characterized in that: The invention also includes a supporting device (7), wherein the supporting device (7) includes a mounting plate (71), two mounting plates (71) are fixedly connected to the workbench (1), and opposite ends of the mounting plates (71) are fixedly connected to fourth bearings (72), a fifth rotating shaft (73) is provided between the two fourth bearings (72), and a supporting roller (74) is sleeved on the fifth rotating shaft (73).

8. The adjustable anti-seepage membrane laying machine for the back slope anti-seepage dam of earth-rock cofferdam according to claims 1 to 3, characterized in that: The second bracket (401) is provided with a second threaded hole (405), the rotating member (504) is provided with a plurality of third threaded holes (506), and the second threaded holes (405) and the third threaded holes (506) are detachably connected with second bolts (507).

9. A working process of an adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope type anti-seepage dam, comprising the adjustable anti-seepage membrane laying machine for an earth-rock cofferdam back-slope type anti-seepage dam according to any one of claims 1 to 8, characterized in that: The working process of the anti-seepage membrane laying machine is as follows: S1: The anti-seepage membrane roll is mounted on the laying roller (313), and the first spring (305) pushes the anti-seepage membrane roll through the limit plate (306) so that the anti-seepage membrane roll acts on the positioning plate (307), and the anti-seepage membrane is placed from the support roller (74) between the two membrane-unfolding auxiliary rollers (406), and the top of the anti-seepage membrane is fixed on the ground; S2: Using a traction vehicle to move and lay the film, the moving wheel (24) drives the first rotating shaft (23) to rotate when rotating, the first rotating shaft (23) drives the first sprocket (310) to rotate, the first sprocket (310) drives the second sprocket (312) to rotate through the first chain (311), the second sprocket (312) drives the laying roller (313) to rotate when rotating, and the laying roller (313) drives the anti-seepage film roll to rotate and lay the film when rotating; S3: The first rotating shaft (23) rotates while driving the third sprocket (409) to rotate. When the third sprocket (409) rotates, it drives the fourth sprocket (411) to rotate through the second chain (410). When the fourth sprocket (411) rotates, it drives the upper film-spreading auxiliary roller (406) to rotate, and the lower film-spreading auxiliary roller (406) pushes the slider (404) upward through the spring. The slider (404) then drives the lower film-spreading auxiliary roller (406) to push upward, so that the two film-spreading auxiliary rollers (406) squeeze the anti-seepage membrane; S4: According to the width of the anti-seepage membrane, the third bracket (505) is driven to rotate by the rotating member (504), and the third bracket (505) drives the sliding column (509) to rotate through the rotating seat (508), and the sliding column (509) drives the film pressing wheel (512) to rotate through the sliding rod (511), and the film pressing wheel (512) squeezes the anti-seepage membrane in contact with the ground, so that it fits more closely with the ground; S5: After the anti-seepage membrane is laid to the preset position, the top of the pressure rod (63) is pressed downward, the support spring (65) is compressed, and the limit block (62) moves downward along the limit track (66), driving the cutting knife (61) to cut the anti-seepage membrane downward, thereby achieving rapid cutting of the anti-seepage membrane.

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