A steel sheet pile cofferdam construction device

Abstract

The present invention provides a steel sheet pile cofferdam construction device, comprising two guide rails fixedly mounted above a construction area in parallel, a rail-moving mechanism being arranged on the guide rails, two steel sheet pile limiting frames being arranged in sequence above the rail-moving mechanism, two lifting drive mechanisms being symmetrically arranged on both sides of the steel sheet pile limiting frame located below, the lifting drive mechanisms being used to drive the steel sheet pile limiting frame located above to move up and down; in the present invention, the upper and lower corresponding steel sheet pile limiting frames can limit the steel sheet piles at the upper and lower positions on the steel sheet piles, ensure the verticality of the steel sheet piles during the insertion and driving process, and ensure the construction quality and construction efficiency; the clamping hydraulic cylinder drives the positive pressure roller to approach the positive supporting roller, so as to clamp and fix the steel sheet pile body, and the side supporting rollers are respectively abutted against the connecting side plates on both sides of the steel sheet piles, so as to limit the steel sheet piles around, realize the positioning of the steel sheet piles in the horizontal direction, and improve the insertion and driving position accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of cofferdam construction, and in particular relates to a steel sheet pile cofferdam construction device. Background Art

[0002] Steel sheet pile cofferdam is an anti-slip and anti-seepage structure made of steel sheet piles. It is usually used in foundation pits, rivers, docks and other projects. It can effectively prevent soil sliding, liquid leakage and other problems. Steel sheet pile cofferdam uses steel sheet piles to be inserted one by one. The steel sheet piles bite each other and finally close into a whole to block the water and soil on the outside. During the insertion process, the verticality of the steel sheet piles is usually controlled manually, and the verticality is constantly tested. When the verticality has a large deviation, it needs to be adjusted. If it cannot be adjusted, it must be pulled up and re-inserted.

[0003] As in the prior art, a Chinese invention patent document with authorization announcement number CN114525783B discloses a steel sheet pile driving process and driving positioning equipment in foundation pit construction, wherein when the steel sheet pile is hoisted above the guide enclosure by a pile driver, as the pile driver gradually moves the steel sheet pile downward, it is convenient for the bottom end of the steel sheet pile to be inserted into the guide enclosure, and under the guiding action of the guide enclosure, as the pile driver drives the steel sheet pile downward, the steel sheet pile is inserted into the guide hole, and at the same time, a connecting plate is rotatably set on the platform plate, so that the connecting plate can adjust the opening direction of the guide hole contour according to the opening direction of the inserted steel sheet pile; however, it cannot guarantee the verticality of the steel sheet pile during the driving process, and the verticality of the steel sheet pile needs to be detected during the driving process, and adjustments need to be made when large deviations occur. If the adjustment cannot be made, the steel sheet pile must be pulled up and re-driven, which affects the construction efficiency.

[0004] Therefore, it is necessary to design a steel sheet pile cofferdam construction device that can ensure the verticality of steel sheet pile insertion and improve construction efficiency to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a steel sheet pile cofferdam construction device which can ensure the verticality of steel sheet pile insertion and improve construction efficiency.

[0006] The technical solution of the present invention is as follows: a steel sheet pile cofferdam construction device comprises two guide rails fixedly arranged in parallel above a construction area, the guide rails are provided with a track-moving mechanism, two steel sheet pile limit frames are arranged in sequence above the track-moving mechanism, two lifting drive mechanisms are symmetrically arranged on both sides of the steel sheet pile limit frame located below, the lifting drive mechanism is used to drive the steel sheet pile limit frame located above to move up and down; the steel sheet pile limit frame has a support frame, a flip frame is arranged inside the support frame, a rotating hydraulic cylinder for driving the flip frame to flip 180° inside the support frame is arranged on one side of the support frame, parallel positive rollers and positive pressure rollers are rotatably arranged inside the flip frame, a clamping hydraulic cylinder for driving the positive pressure roller to approach or move away from the positive roller is arranged inside the flip frame, and side rollers are rotatably arranged at both ends of the positive roller.

[0007] The camshaft is configured to move the front and rear ends of the guide rails so that the front and rear ends of the guide rails are moved in a rotationally-rotating manner so as to move the front and rear ends of the guide rails in a rotationally-rotating manner.

[0008] Furthermore, one end of the side roller shaft seat is hinged to one end of the positive roller shaft seat, and the side roller angle adjustment mechanism has an adjusting screw arranged on the U-shaped frame and rotating parallel to the positive roller, a reduction motor driving the adjusting screw to rotate is arranged in the middle of the adjusting screw, both ends of the adjusting screw are threadedly connected with moving blocks, an adjusting guide rod parallel to the adjusting screw is slidingly arranged inside the moving block, both ends of the adjusting guide rod are fixedly connected to the U-shaped frame and the positive roller shaft seat respectively, an adjusting connecting rod is hinged on the moving block, and an end of the adjusting connecting rod facing away from the moving block is hinged to the outer side of the side roller shaft seat.

[0009] Furthermore, an oiling mechanism is provided on the end of the side roller shaft seat which is away from the main roller, and the oiling mechanism is used to apply lubricating oil paste to the inside of the engaging groove of the steel sheet pile.

[0010] Furthermore, the oiling mechanism comprises an oiling support fixedly arranged at the end of the side roller shaft seat, swing arms are rotatably arranged at both ends of the oiling support, a servo for driving the swing arm to swing back and forth is arranged on the swing arm, a base is fixedly arranged on the end of the swing arm away from the oiling support, a nozzle seat is arranged in the middle of the base, a brushing part is arranged at the upper and lower ends of the nozzle seat, a front nozzle and a side nozzle are arranged on the nozzle seat, an oil supply pipe joint connected to the front nozzle and the side nozzle is arranged on the base, and the oil supply pipe joint is connected to a lubricating oil paste pumping device through a pipeline.

[0011] Furthermore, baffle bars corresponding to the flip frame are fixedly provided at the bottom of both ends of the support frame, the side surface of one end of the flip frame is transmission connected to the rotating hydraulic cylinder, and both ends of the support frame are provided with flip frame locking mechanisms for locking or releasing the other end of the flip frame.

[0012] Furthermore, the flip frame locking mechanism has two locking cylinders symmetrically arranged at the ends of the flip frame, a locking bolt corresponding to the locking cylinder is slidably arranged on the support frame, a locking plate is fixedly arranged on the end of the locking bolt facing away from the flip frame, and a locking hydraulic cylinder for driving the locking plate and the locking bolt to reciprocate is fixedly mounted on the outer side of the support frame.

[0013] Furthermore, the mechanism for moving along the track has a main clamping groove fixedly arranged at the bottom of the steel sheet pile limit frame located below and corresponding to the guide rail, a double-rod hydraulic cylinder is fixedly arranged on one side of the main clamping groove, and the ends of the two piston rods of the double-rod hydraulic cylinder are fixedly arranged with a mobile clamping groove sleeved on the outside of the guide rail, and a rail clamping assembly for clamping or releasing the guide rail is arranged on one side of the main clamping groove and the mobile clamping groove.

[0014] Furthermore, the rail clamping assembly comprises a rail clamping hydraulic cylinder, and a rail clamping plate is fixedly provided at the end of the piston rod of the rail clamping hydraulic cylinder.

[0015] Furthermore, the lifting drive mechanism is a lifting hydraulic cylinder fixed to the outer side of the steel sheet pile limiting frame located below, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the outer side of the steel sheet pile limiting frame located above.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, two corresponding upper and lower steel sheet pile limiting frames can limit the steel sheet piles at two upper and lower positions on the steel sheet piles, thereby ensuring the verticality of the steel sheet piles during the insertion process and ensuring the construction quality and efficiency;

[0018] (2) The clamping hydraulic cylinder drives the positive pressure roller close to the positive roller, which can clamp and fix the main body of the steel sheet pile. The side rollers are respectively against the connecting side plates on both sides of the steel sheet pile to limit the surrounding of the steel sheet pile and position the steel sheet pile in the horizontal direction, thereby improving the position accuracy of the insertion and driving. At the same time, the positive roller, positive pressure roller and side rollers can rotate without affecting the downward movement of the steel sheet pile during the insertion and driving process;

[0019] (3) The track-moving mechanism can drive the steel sheet pile limit frame to move to the next insertion position after one steel sheet pile is inserted and driven, without the need for manual handling, thus reducing labor costs;

[0020] (4) After the track moving mechanism moves, the rotating hydraulic cylinder can drive the flip frame to flip 180°, and the flip frame drives the positive roller, positive pressure roller, and side roller to flip to adapt to the positioning of the next steel sheet pile;

[0021] (5) The lifting drive mechanism is used to drive the steel sheet pile limit frame located above to move up and down. As the insertion and driving of the steel sheet piles proceeds, the lifting drive mechanism can drive the steel sheet pile limit frame located above to gradually descend, thereby reducing the impact on the steel sheet pile insertion and driving construction, while ensuring that the steel sheet piles are provided with corresponding support to ensure their verticality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the use status of the steel sheet pile cofferdam construction device in the present invention.

[0023] Figure 2 This is one of the structural schematic diagrams of the steel sheet pile cofferdam construction device in the present invention.

[0024] Figure 3 This is the second structural schematic diagram of the steel sheet pile cofferdam construction device in the present invention.

[0025] Figure 4 It is a structural schematic diagram of the steel sheet pile limiting frame in the present invention.

[0026] Figure 5 for Figure 2 A partial enlarged view of point A in the middle.

[0027] Figure 6 It is a structural schematic diagram of the oiling mechanism in the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of a steel sheet pile. DETAILED DESCRIPTION

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0030] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] like Figures 1 to 7 As shown, the steel sheet pile cofferdam construction device comprises two guide rails 1 fixedly erected in parallel above the construction area, the guide rails 1 are provided with a track-moving mechanism 2, two steel sheet pile limiting frames 3 are sequentially arranged above the track-moving mechanism 2, two lifting drive mechanisms 4 are symmetrically arranged on both sides of the steel sheet pile limiting frame 3 located below, and the lifting drive mechanism 4 is used to drive the steel sheet pile limiting frame 3 located above to move up and down; the steel sheet pile limiting frame 3 has a support frame 31, a flip frame 32 is arranged inside the support frame 31, and a driving flip frame 32 is arranged on one side of the support frame 31 to flip inside the support frame 31 A 180° rotating hydraulic cylinder 33, a positive roller 35 and a positive pressure roller 36 are rotatably arranged inside the flip frame 32, a clamping hydraulic cylinder 362 is arranged inside the flip frame 32 to drive the positive pressure roller 36 to approach or move away from the positive roller 35, and side rollers 37 are rotatably arranged at both ends of the positive roller 35; in this embodiment, the upper and lower corresponding steel sheet pile limit frames 3 can limit the steel sheet pile 6 at the upper and lower positions on the steel sheet pile 6 to ensure the verticality of the steel sheet pile during the insertion and driving process, avoid re-insertion due to large deviation of the verticality of the steel sheet pile 6, and ensure the construction quality and efficiency; Figure 7As shown, the steel sheet pile 6 has a steel sheet pile body 63, and connecting side plates 62 and engaging grooves 61 are arranged on both sides of the steel sheet pile body 63; the clamping hydraulic cylinder 362 drives the positive pressure roller 36 to approach the positive roller 35, which can clamp and fix the steel sheet pile body 63, and the two side rollers 37 are respectively against the two connecting side plates 62 on both sides of the steel sheet pile 6, thereby realizing the limitation of the four sides of the steel sheet pile 6, and then realizing the positioning of the steel sheet pile 6 in the horizontal direction, improving the position accuracy of the steel sheet pile 6 insertion and driving, and at the same time, the positive roller 35, the positive pressure roller 36, and the side roller 37 can rotate as the steel sheet pile 6 moves downward, without affecting the downward movement of the steel sheet pile 6 during the insertion and driving process; the track moving mechanism 2 can drive the steel sheet pile limit frame 3 to move to the next insertion and driving position after a steel sheet pile 6 is inserted and driven, without manual handling, reducing the number of people Work expenditure, and after moving, the rotating hydraulic cylinder 33 can drive the flip frame 32 to flip 180°, and at the same time, the flip frame 32 drives the positive roller 35, the positive pressure roller 36, and the side roller 37 to flip to adapt to the positioning of the next steel sheet pile 6; this is because the openings of two adjacent steel sheet piles 6 are in opposite directions during the insertion and driving process of the steel sheet pile 6. By flipping the flip frame 32 180°, the positive roller 35, the positive pressure roller 36, and the side roller 37 can match the steel sheet pile 6 with the opposite opening directions; the lifting drive mechanism 4 is used to drive the steel sheet pile limit frame 3 located above to move up and down. As the insertion and driving proceeds, the lifting drive mechanism 4 can drive the steel sheet pile limit frame 3 located above to gradually descend, thereby reducing the impact on the steel sheet pile insertion and driving construction, and at the same time ensuring that corresponding support is provided to the steel sheet pile 6 to ensure its verticality.

[0032] In some embodiments, Figure 3As shown, a support plate 321 is fixedly provided on one side of the flip frame 32, and an opening is opened on the support plate 321 for the steel sheet pile 6 to pass through. A roller moving adjustment mechanism 38 is provided inside the flip frame 32 for moving and adjusting the positions of the positive roller 35 and the side roller 37 along the direction in which the vertical guide rail 1 extends; the positions of the positive roller 35 and the side roller 37 are adjusted by the roller moving adjustment mechanism 38, and the position of the steel sheet pile 6 after clamping and positioning can be adjusted, so that the engaging groove 61 of the adjusted steel sheet pile 6 corresponds to the rotating axis of the flip frame 32, so that the flip frame 32 is just It is capable of accurately positioning two adjacent steel sheet piles 6; the roller moving adjustment mechanism 38 has a U-shaped frame 381 slidably arranged inside the flip frame 32, and a moving screw support 383 corresponding to the two ends of the U-shaped frame 381 is fixedly arranged inside the flip frame 32, and a roller moving screw 382 is rotatably arranged inside the moving screw support 383, one end of the roller moving screw 382 is rotatably connected to the flip frame 32, the end of the U-shaped frame 381 is threadedly connected to the roller moving screw 382, ​​and the roller moving screw 382 is equipped with a locking nut corresponding to the U-shaped frame 381 384; when it is necessary to adjust the position of the positive roller 35 and the side roller 37, the roller moving screw 382 is screwed, and the roller moving screw 382 cooperates with the U-shaped frame 381 through a threaded structure to drive the U-shaped frame 381 to move along the axial direction of the roller moving screw 382, ​​thereby achieving the position adjustment of the positive roller 35 and the side roller 37; after the position adjustment of the positive roller 35 and the side roller 37 is completed, the locking nut 384 is screwed toward the U-shaped frame 381, so that the locking nut 384 and the U-shaped frame 381 are abutted, and the U-shaped frame 381 and the roller moving screw 382 are locked to avoid The U-shaped frame 381 is free from movement; a positive roller shaft seat 351 is fixedly provided in the middle of the U-shaped frame 381, the positive roller 35 is rotatably provided inside the positive roller shaft seat 351, a side roller shaft seat 371 is rotatably provided on the outer side of the side roller 37, a side roller angle adjustment mechanism 39 is provided between the side roller shaft seat 371 and the U-shaped frame 381, and the side roller angle adjustment mechanism 39 is used to adjust the angle of the side roller 37; the angle of the side roller 37 can be adjusted by the roller angle adjustment mechanism 39, so that the side roller 37 can be tightly attached to the outer side of the connecting side plate 62 of the steel sheet pile 6.

[0033] In some embodiments, as a specific implementation of the roller angle adjustment mechanism 39, one end of the side roller shaft seat 371 is hinged to one end of the positive roller shaft seat 351, and the side roller angle adjustment mechanism 39 has an adjustment screw 391 that is arranged on the U-shaped frame 381 and rotates parallel to the positive roller 35. A reduction motor 395 that drives the adjustment screw 391 to rotate is arranged in the middle of the adjustment screw 391. The reduction motor 395 is fixedly mounted on the U-shaped frame 381. Both ends of the adjustment screw 391 are threadedly connected to a moving block 394. The interior of the moving block 394 is slidably provided with an adjustment guide rod 393 that is parallel to the adjustment screw 391. The two ends of the adjustment guide rod 393 are respectively connected to the U-shaped frame 381. The frame 381 and the positive roller shaft seat 351 are fixedly connected, and an adjusting link 392 is hinged on the moving block 394. The end of the adjusting link 392 that faces away from the moving block 394 is hinged to the outer side of the side roller shaft seat 371; when the angle of the opposite side roller 37 is adjusted, the reduction motor 395 drives the adjusting screw 391 to rotate. When the adjusting screw 391 rotates, it cooperates with the threaded structure between the moving block 394 to drive the moving block 394 to move along the adjusting screw 391. During the movement, the side roller shaft seat 371 is pushed and pulled by the adjusting link 392 to achieve the angle adjustment of the opposite side roller shaft seat 371, thereby achieving the angle adjustment of the opposite side roller 37.

[0034] In some embodiments, Figure 2 As shown, an oiling mechanism 5 is provided on the end of the side roller seat 371 which is away from the main roller 35, and the oiling mechanism 5 is used to apply lubricating paste to the inside of the engaging groove 61 of the steel sheet pile 6; when the steel sheet pile 6 enters into the inside of the steel sheet pile limiting frame 3 located above, the oiling mechanism 5 enters into the engaging groove 61 of the steel sheet pile 6, and automatically applies lubricating paste to the inside of the engaging groove 61. By applying the lubricating paste, the frictional resistance between adjacent steel sheet piles 6 can be reduced during the insertion process, and the anti-seepage performance between the steel sheet piles 6 can be enhanced.

[0035] In some embodiments, Figure 2 , 5As shown in Figure 6, the oiling mechanism 5 has an oiling support 372 fixedly arranged at the end of the side roller shaft seat 371, and swing arms 51 are rotatably arranged at both ends of the oiling support 372. A steering gear 57 for driving the reciprocating swing thereof is arranged on the swing arm 51. The steering gear 57 main body is fixed on the swing arm 51, and the output shaft of the steering gear 57 is transmission-connected with a pivot fixed on the oiling support 372. The swing arm 51 is rotatably sleeved on the outside of the pivot, and a base 52 is fixedly arranged at one end of the swing arm 51 away from the oiling support, and a nozzle seat 54 is arranged in the middle of the base 52. A brushing portion 53 is arranged at the upper and lower ends of the nozzle seat 54, so that the oiling mechanism 5 can brush the engaging groove 61 of the steel sheet pile 6 before and after the flipping of the flip frame 32, and a front nozzle 55 and a side nozzle 56 are arranged on the nozzle seat 54, and a nozzle 53 connected to the front nozzle 55 and the side nozzle 56 is arranged on the base 52. 56 is connected to an oil supply pipe joint 58, and the oil supply pipe joint 58 is connected to a lubricating paste pumping device through a pipeline; the steering gear 57 drives the swing arm 51 to swing, so that the brushing part 53, the front nozzle 55 and the side nozzle 56 can be inserted into the inside of the engaging groove 61 or pulled out from the inside of the engaging groove 61. When the lower end of the steel sheet pile 6 corresponds to the oiling mechanism 5, the steering gear 57 drives the swing arm 51 to swing, so that the brushing part 53, the front nozzle 55 and the side nozzle 56 can be inserted into the lower end of the engaging groove 61, and the lubricating paste pumping device pumps lubricating paste to the front nozzle 55 and the side nozzle 56 through the pipeline, and the lubricating paste is sprayed outward from the front nozzle 55 and the side nozzle 56 to the inside of the engaging groove 61, and then as the steel sheet pile 6 moves downward, the brushing part 53 applies the lubricating paste to the inside of the engaging groove 61; specifically, the brushing part 53 is a brush arranged on one side of the base 52.

[0036] In some embodiments, a baffle 311 corresponding to the flip frame 32 is fixedly provided at the bottom of both ends of the support frame 31, and the side surface of one end of the flip frame 32 is transmission-connected to the rotating hydraulic cylinder 33. Both ends of the support frame 31 are provided with a flip frame locking mechanism 34 for locking or releasing the other end of the flip frame 32. When the rotating hydraulic cylinder 33 drives the flip frame 32 to flip back and forth, the two baffles 311 can respectively block and limit the bottom of one end of the flip frame 32 at two positions before and after the flipping of the flip frame 32, so that the flip frame locking mechanism 34 can lock the flip frame 32, thereby improving the stability of the flip frame 32 and thereby ensuring the positioning accuracy of the steel sheet pile 6.

[0037] In some embodiments, the flip frame locking mechanism 34 has two locking plugs 344 symmetrically arranged at the ends of the flip frame 32, a locking plug 343 corresponding to the locking plug 344 is slidably arranged on the support frame 31, a locking plate 342 is fixedly arranged on the end of the locking plug 343 away from the flip frame 32, and a locking hydraulic cylinder 341 for driving the locking plate 342 and the locking plug 343 to reciprocate is fixedly arranged on the outer side of the support frame 31. After the rotating hydraulic cylinder 33 drives the flip frame 32 to complete the flip, the corresponding The locking hydraulic cylinder 341 in the flip frame locking mechanism 34 drives the locking plate 342 and the locking bolt 343 to move, so that the locking bolt 343 is inserted into the interior of the locking plug tube 344, thereby locking the flip frame 32; before the rotating hydraulic cylinder 33 drives the flip frame 32 to flip, the corresponding locking hydraulic cylinder 341 in the flip frame locking mechanism 34 drives the locking plate 342 and the locking bolt 343 to reset, so that the locking bolt 343 is pulled out from the interior of the locking plug tube 344, thereby releasing the flip frame 32.

[0038] In some embodiments, the along-track moving mechanism 2 has a main clamping groove 21 fixedly arranged at the bottom of the steel sheet pile limit frame 3 located below and corresponding to the guide rail 1, a double-rod hydraulic cylinder 23 is fixedly arranged on one side of the main clamping groove 21, and the two piston rod ends of the double-rod hydraulic cylinder 23 are fixedly arranged with a mobile clamping groove 22 sleeved on the outside of the guide rail 1, and one side of the main clamping groove 21 and the mobile clamping groove 22 are provided with a clamping rail assembly 24 for clamping or releasing the guide rail 1; the clamping rail assembly 24 on the main clamping groove 21 releases the guide rail 1, and the clamping rail assembly 24 on the mobile clamping groove 22 clamps the guide rail 1, and at this time, the double-rod hydraulic cylinder 23 can be controlled to limit the steel sheet pile along the guide rail 1. The position of the positioning frame 3 is moved and adjusted; when the main clamping groove 21 moves forward to contact with a mobile clamping groove 22, the rail clamping assembly 24 on the main clamping groove 21 clamps the guide rail 1, and the rail clamping assembly 24 on the mobile clamping groove 22 releases the guide rail 1. At this time, the double-rod hydraulic cylinder 23 is controlled to move the two mobile clamping grooves 22 forward; alternating the above two groups of actions can enable the along-track moving mechanism 2 to move along the guide rail 1 without manual handling, reducing labor expenses and improving movement efficiency; after the position of the steel sheet pile limiting frame 3 is adjusted, the rail clamping assembly 24 on the main clamping groove 21 clamps the guide rail 1, which can ensure the stability of the steel sheet pile limiting frame 3 during the insertion and driving process.

[0039] In some embodiments, Figure 3 As shown, the rail clamping assembly 24 has a rail clamping hydraulic cylinder 241, and a rail clamping plate 242 is fixedly provided at the end of the piston rod of the rail clamping hydraulic cylinder 241. The rail clamping hydraulic cylinder 241 is fixedly assembled on one side of the corresponding main clamping groove 21 and the movable clamping groove 22. The rail clamping plate 242 is driven to move by the rail clamping hydraulic cylinder 241, and the rail clamping plate 242 cooperates with the other side of the corresponding main clamping groove 21 and the movable clamping groove 22 to clamp and fix the guide rail 1.

[0040] In some embodiments, the lifting drive mechanism 4 is a lifting hydraulic cylinder fixed on the outside of the steel sheet pile limiting frame 3 located below, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the outside of the steel sheet pile limiting frame 3 located above. The lifting hydraulic cylinder is controlled to shrink synchronously during the insertion and driving process, and can control the steel sheet pile limiting frame 3 located above to move downward, thereby ensuring support for the steel sheet piles 6 while avoiding affecting the insertion and driving.

[0041] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0042] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A steel sheet pile cofferdam construction device, characterized in that: It comprises two guide rails fixedly erected in parallel above the construction area, the guide rails are provided with a mechanism for moving along the rails, two steel sheet pile limit frames are sequentially arranged above the mechanism for moving along the rails, two lifting drive mechanisms are symmetrically arranged on both sides of the steel sheet pile limit frame located below, and the lifting drive mechanism is used to drive the steel sheet pile limit frame located above to move up and down; The steel sheet pile limiting frame comprises a support frame, a flip frame is arranged inside the support frame, a rotary hydraulic cylinder driving the flip frame to flip 180° inside the support frame is arranged on one side of the support frame, parallel positive rollers and positive pressure rollers are rotatably arranged inside the flip frame, a clamping hydraulic cylinder driving the positive pressure roller to approach or move away from the positive roller is arranged inside the flip frame, and side rollers are rotatably arranged at both ends of the positive roller; The interior of the flip frame is provided with a roller moving adjustment mechanism for moving and adjusting the positions of the front roller and the side rollers in a direction perpendicular to the extension of the guide rail; It also includes a side roller angle adjustment mechanism, wherein the side roller angle adjustment mechanism is used to adjust the angle of the side roller; The bottoms of both ends of the support frame are fixedly provided with blocking bars corresponding to the flip frame, one end side of the flip frame is transmission connected to the rotating hydraulic cylinder, and both ends of the support frame are provided with flip frame locking mechanisms for locking or releasing the other end of the flip frame.

2. The steel sheet pile cofferdam construction device according to claim 1, characterized in that: The roller movement adjustment mechanism comprises a U-shaped frame slidably arranged inside the flip frame, a moving screw support corresponding to the two ends of the U-shaped frame is fixedly arranged inside the flip frame, a roller moving screw is rotatably arranged inside the moving screw support, one end of the roller moving screw is rotatably connected to the flip frame, the end of the U-shaped frame is threadedly connected to the roller moving screw, and a locking nut corresponding to the U-shaped frame is assembled on the roller moving screw; A positive roller seat is fixedly arranged in the middle of the U-shaped frame, the positive roller is rotatably arranged inside the positive roller seat, and a side roller seat is rotatably arranged on the outer side of the side roller, and the side roller angle adjustment mechanism is arranged between the side roller seat and the U-shaped frame.

3. The steel sheet pile cofferdam construction device according to claim 2, characterized in that: One end of the side roller shaft seat is hinged to one end of the positive roller shaft seat, and the side roller angle adjustment mechanism comprises an adjusting screw which is arranged on the U-shaped frame and rotates parallel to the positive roller, and a reduction motor which drives the adjusting screw to rotate is arranged in the middle of the adjusting screw, and both ends of the adjusting screw are threadedly connected with moving blocks, and an adjusting guide rod which is parallel to the adjusting screw is slidingly arranged inside the moving block, and both ends of the adjusting guide rod are fixedly connected to the U-shaped frame and the positive roller shaft seat respectively, and an adjusting connecting rod is hinged on the moving block, and an end of the adjusting connecting rod which faces away from the moving block is hinged to the outer side of the side roller shaft seat.

4. The steel sheet pile cofferdam construction device according to claim 1, characterized in that: An oiling mechanism is provided on the end of the side roller shaft seat away from the main roller, and the oiling mechanism is used to apply lubricating oil paste to the inside of the engaging groove of the steel sheet pile.

5. The steel sheet pile cofferdam construction device according to claim 4 is characterized in that: The oiling mechanism comprises an oiling support fixedly arranged at the end of the side roller shaft seat, swing arms are rotatably arranged at both ends of the oiling support, a servo for driving the swing arm to swing back and forth is arranged on the swing arm, a base is fixedly arranged at the end of the swing arm away from the oiling support, a nozzle seat is arranged in the middle of the base, a brushing part is arranged at the upper and lower ends of the nozzle seat, a front nozzle and a side nozzle are arranged on the nozzle seat, an oil supply pipe joint connected with the front nozzle and the side nozzle is arranged on the base, and the oil supply pipe joint is connected to a lubricating oil paste pumping device through a pipeline.

6. The steel sheet pile cofferdam construction device according to claim 1, characterized in that: The flip frame locking mechanism has two locking cylinders symmetrically arranged at the ends of the flip frame, a locking bolt corresponding to the locking cylinder is slidably arranged on the support frame, a locking plate is fixedly arranged on the end of the locking bolt away from the flip frame, and a locking hydraulic cylinder for driving the locking plate and the locking bolt to reciprocate is fixedly mounted on the outer side of the support frame.

7. The steel sheet pile cofferdam construction device according to claim 1, characterized in that: The mechanism for moving along the track has a main clamping groove fixedly arranged at the bottom of the steel sheet pile limiting frame located below and corresponding to the guide rail, a double-rod hydraulic cylinder is fixedly arranged on one side of the main clamping groove, and both piston rod ends of the double-rod hydraulic cylinder are fixedly arranged with a movable clamping groove sleeved on the outer side of the guide rail, and a rail clamping assembly for clamping or releasing the guide rail is arranged on one side of the main clamping groove and the movable clamping groove.

8. The steel sheet pile cofferdam construction device according to claim 7, characterized in that: The rail clamping assembly comprises a rail clamping hydraulic cylinder, and a rail clamping plate is fixedly arranged at the end of the piston rod of the rail clamping hydraulic cylinder.

9. The steel sheet pile cofferdam construction device according to claim 1, characterized in that: The lifting drive mechanism is a lifting hydraulic cylinder fixed to the outer side of the steel sheet pile limiting frame located below, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the outer side of the steel sheet pile limiting frame located above.

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