A connection device for endless sheet pile production

Abstract

The present invention relates to the technical field of endless sheet pile production, specifically to a connection device for the production of endless sheet piles, including a first column pile located above a second column pile, and also including an upper connection plate and a lower connection plate located between the first column pile and the second column pile, wherein a first main rotating shaft is movably provided through the middle position of the upper connection plate, and a first main bevel gear is installed at the top end of the first main rotating shaft. The present invention can adjust the prefabricated parts on the connection device according to actual needs so that it can adapt to endless sheet piles of different outer diameters, which is beneficial to improving the use range of the connection device, and can avoid relative displacement between the sheet piles and the connection device during the production process of the endless sheet piles, thereby ensuring the production stability of the endless sheet piles, significantly improving the production efficiency of the endless sheet piles, and realizing the step-by-step disassembly function of the connection device so that its faulty parts can be replaced and repaired, which is conducive to the reuse of the connection device.

Description

Technical Field

[0001] The invention relates to the technical field of endless sheet pile production, in particular to a connecting device used for endless sheet pile production. Background Art

[0002] Endless sheet pile is an innovative prestressed concrete pile foundation technology. It simplifies the production process, reduces costs, and improves the quality and construction efficiency of piles by improving the traditional pile foundation structure and eliminating the traditional end plates. It is suitable for foundation engineering of various buildings, especially in high-rise buildings, public buildings, general industrial and civil buildings, ports, docks, highways and bridges, and has broad application prospects. With the continuous maturity and promotion of technology, endless sheet pile is expected to play a more important role in future construction.

[0003] The patent with announcement number CN205364197U discloses a connecting device for the production of precast piles without end plates. During production, the main reinforcement with a swaged head on the precast pile is inserted into the connecting hole of the front connecting plate for fixation. After the production is completed, the main reinforcement part in the connecting device is disconnected from the precast pile. Under the premise of meeting the engineering needs, the connecting device is used to produce endless sheet piles, eliminating the end plates at both ends of the precast piles, effectively saving costs, and the connecting device can be recycled. However, the existing connecting device for the production of endless sheet piles still has certain defects when used. Its overall structure is relatively simple and fixed, and it can only produce endless sheet piles of a specific outer diameter, which has great limitations in use. Therefore, a connecting device for the production of endless sheet piles is proposed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a connecting device for the production of endless sheet piles, which solves the technical problem that the existing connecting device for the production of endless sheet piles mentioned in the above background technology still has certain defects when used, its overall structure is relatively simple and fixed, and it can only produce endless sheet piles with a specific outer diameter, and has great limitations in use.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A connection device for the production of endless sheet piles, comprising a first column pile located above a second column pile, and also comprising an upper connection plate and a lower connection plate located between the first column pile and the second column pile, wherein a first main rotating shaft is movably provided through the middle position of the upper connection plate, a first main bevel gear is installed on the top end of the first main rotating shaft, a first middle groove is provided at the middle position of the upper surface of the upper connection plate, six groups of first slave bevel gears are provided at equal intervals on the inner side surface of the first middle groove, first slave threaded rods are provided through the six groups of the first slave threaded rods, first sliding blocks are sleeved on the outer sides of the six groups of the first slave threaded rods, and grooves are provided on the six groups of the first sliding blocks;

[0007] A second main rotating shaft is movably provided through the middle position of the lower connecting disk, a second main bevel gear is installed at the bottom end of the second main rotating shaft, a second middle groove is provided in the middle position of the upper surface of the lower connecting disk, six groups of second slave bevel gears are evenly spaced on the inner side surface of the second middle groove, a second slave threaded rod is provided through the six groups of the second slave bevel gears, a second sliding block is sleeved on the outer side of the six groups of the second slave threaded rods, and a protrusion is provided on the six groups of the second sliding blocks.

[0008] As a further solution of the present invention, the outer diameters of the upper connecting disk and the lower connecting disk are the same, an intermediate ring plate is arranged between the upper connecting disk and the lower connecting disk, a dual-axis motor is fixedly installed on the inner side of the intermediate ring plate, and the first main rotating shaft and the second main rotating shaft are respectively fixedly connected to the two output ends of the dual-axis motor, the first main bevel gear is located at the inner bottom of the first middle groove, and the six groups of the first slave bevel gears are all meshed with the first main bevel gear, the second main bevel gear is located at the inner top of the second middle groove, and the six groups of the second slave bevel gears are all meshed with the second main bevel gear.

[0009] As a further solution of the present invention, the six groups of the first sliding blocks are respectively threadedly connected to the six groups of the first slave threaded rods, the upper surface of the upper connecting plate is provided with six groups of first sliding grooves at equal intervals, and the six groups of the first sliding blocks are respectively located inside the first sliding grooves, the six groups of the second sliding blocks are respectively threadedly connected to the six groups of the second slave threaded rods, the lower surface of the lower connecting plate is provided with six groups of second sliding grooves at equal intervals, and the six groups of the second sliding blocks are respectively located inside the six groups of the second sliding grooves.

[0010] As a further solution of the present invention, the six groups of the first sliding blocks and the six groups of the second sliding blocks are all fixedly connected with sliding tubes, the ends of the sliding tubes are fixedly connected with movable vertical plates, an adjusting screw is provided through the movable vertical plates near the middle position, one end of the adjusting screw is fixedly connected with a movable block, the outer side of the movable block is movably connected with a fixed groove block, the fixed groove block is fixedly connected with a limiting plate, and one side of the limiting plate is fixedly connected with a limiting sliding rod near both ends.

[0011] As a further solution of the present invention, six groups of sliding openings are evenly spaced through the outer side surfaces of the upper connecting plate and the lower connecting plate, and the sliding tube is located on the inner side of the sliding opening. A threaded hole is penetrated near the middle position on the movable vertical plate, and the movable vertical plate is threadedly connected to the adjusting screw through the threaded hole, and the two groups of limiting sliding rods are symmetrically arranged about the adjusting screw.

[0012] As a further solution of the present invention, two groups of limit sliding holes are opened through the movable vertical plate, and the two groups of limit sliding rods are movably connected to the movable vertical plate through the limit sliding holes, and the inner side surface of the limit plate is designed to be an arc surface, and the six groups of limit plates are respectively fitted with the first column pile and the second column pile.

[0013] As a further solution of the present invention, the upper and lower ends of the intermediate ring plate are respectively fixedly connected with the first internal threaded ring plate and the second internal threaded ring plate, the middle positions of the opposite surfaces of the upper connecting plate and the lower connecting plate are respectively fixedly connected with the first external threaded ring and the second external threaded ring, six groups of spiral rods are evenly spaced through the lower connecting plate, the upper ends of the six groups of spiral rods are fixedly connected with connecting pipes, and six groups of connecting rods are evenly spaced and fixedly connected to the lower surface of the upper connecting plate.

[0014] As a further solution of the present invention, the first internal threaded ring plate and the second internal threaded ring plate have the same length, the first internal threaded ring plate is threadedly connected to the first external threaded ring, the second internal threaded ring plate is threadedly connected to the second external threaded ring, six groups of spiral notches are evenly spaced through the lower connecting plate, and the six groups of spiral rods are respectively threadedly connected to the lower connecting plate through the spiral notches, and the six groups of connecting pipes are respectively connected to the six groups of connecting rods.

[0015] As a further solution of the present invention, the top end of the first main shaft is threadedly connected with a first screw ring, the ends of the six groups of the first slave threaded rods are threadedly connected with second screw rings, and the six groups of second screw rings are all located on the inner side of the first middle groove, the bottom end of the second main shaft is threadedly connected with a third screw ring, the ends of the six groups of the second slave threaded rods are all threadedly connected with fourth screw rings, and the six groups of fourth screw rings are all located on the inner side of the second middle groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By starting the double-axis motor on the inner side of the intermediate ring plate, the first main rotating shaft and the second main rotating shaft are driven to rotate together, thereby driving the first main bevel gear in the first intermediate groove to rotate, and then the meshing first main bevel gear and the first slave bevel gear drive the six groups of first slave threaded rods to rotate, and the threaded connection between the first slave threaded rod and the first sliding block drives the six groups of first sliding blocks to move along the six groups of first sliding grooves respectively. At the same time, the rotation of the second main rotating shaft will drive the second main bevel gear in the second intermediate groove to rotate, thereby driving the six groups of second slave threaded rods to rotate through the meshing second main bevel gear and the second slave bevel gear, and then the threaded connection between the second slave threaded rod and the second sliding block drives the six groups of second sliding blocks to move along the six groups of second sliding grooves respectively, and the ends of the first column pile and the second column pile are produced through the six groups of grooves and the six groups of protrusions, and the prefabricated parts on the connecting device can be adjusted according to actual needs so that it can adapt to the endless sheet piles of different outer diameters, which is conducive to improving the use range of the connecting device.

[0018] 2. When the six groups of first sliding blocks and the six groups of second sliding blocks move, they will respectively drive the six groups of sliding tubes to move along the six groups of sliding openings, thereby respectively driving the six groups of moving vertical plates to move, and then rotating the adjusting screw through the threaded holes on the moving vertical plates, thereby driving the limiting plate to move relative to the moving vertical plates through the movable block and the fixed slot block in cooperation with the two groups of limit sliding rods and the two groups of limit sliding holes, until the limiting plate fits with the first column pile and the second column pile respectively, which can avoid relative offset between the sheet pile and the connecting device during the production process of the endless sheet piles, ensure the production stability of the endless sheet piles, and significantly improve the production efficiency of the endless sheet piles.

[0019] 3. The first main bevel gear and the second main bevel gear are separated from the first main shaft and the second main shaft respectively through the threaded connection between the first screw ring and the first main shaft and the threaded connection between the third screw ring and the second main shaft, and then the first slave bevel gear and the second slave bevel gear are separated from the first slave threaded rod and the second slave threaded rod respectively through the threaded connection between the second screw ring and the first slave threaded rod and the threaded connection between the fourth screw ring and the second slave threaded rod, and then the six groups of connecting pipes are respectively spirally moved downward through the threaded connection between the screw rod and the lower connecting plate until the six groups of connecting pipes are respectively separated from the six groups of connecting rods, and then the upper connecting plate and the lower connecting plate are respectively moved away from the two sides of the middle ring plate through the first internal threaded ring plate and the first external threaded ring in cooperation with the second internal threaded ring plate and the second external threaded ring, thereby realizing the step-by-step disassembly function of the connecting device, so as to replace and repair its faulty parts, which is conducive to the reuse of the connecting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2It is a schematic diagram of the connection structure of the first column pile in the present invention.

[0022] Figure 3 It is a schematic diagram of the connection structure of the upper connection plate in the present invention.

[0023] Figure 4 It is a schematic diagram of the distribution structure of the first sliding block in the present invention.

[0024] Figure 5 It is a schematic diagram of the connection structure of the second column pile in the present invention.

[0025] Figure 6 It is a schematic diagram of the connection structure of the lower connecting plate in the present invention.

[0026] Figure 7 It is a schematic diagram of the distribution structure of the second sliding block in the present invention.

[0027] Figure 8 It is a schematic diagram of the connection structure between the upper connecting plate and the lower connecting plate in the present invention.

[0028] Fig. 9 It is a schematic diagram of the distribution structure of the limiting plates in the present invention.

[0029] In the figure: 1, first column pile; 2, second column pile; 3, upper connecting plate; 4, lower connecting plate; 5, first main shaft; 6, first main bevel gear; 7, first intermediate groove; 8, first slave threaded rod; 9, first slave bevel gear; 10, first sliding block; 11, groove; 12, first slide groove; 13, second main shaft; 14, second main bevel gear; 15, second intermediate groove; 16, second slave threaded rod; 17, second slave bevel gear; 18, second sliding block; 19, protrusion; 20, second slide groove; 21, intermediate ring plate; 22, dual-axis motor ; 23. Sliding tube; 24. Moving vertical plate; 25. Adjusting screw; 26. Movable block; 27. Limiting plate; 28. Fixed groove block; 29. ​​Limiting slide rod; 30. Threaded hole; 31. Limiting slide hole; 32. Sliding mouth; 33. Spiral groove; 34. Spiral rod; 35. Connecting tube; 36. Connecting rod; 37. First internal threaded ring plate; 38. Second internal threaded ring plate; 39. First external threaded ring; 40. Second external threaded ring; 41. First spiral ring; 42. Second spiral ring; 43. Third spiral ring; 44. Fourth spiral ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] See also Figures 1 to 9 The present invention provides a connection device for the production of endless sheet piles, and the technical solution is as follows:

[0033] A connection device for the production of endless sheet piles, comprising a first column pile 1 located above a second column pile 2, and also comprising an upper connection plate 3 and a lower connection plate 4 located between the first column pile 1 and the second column pile 2, a first main rotating shaft 5 is movably provided through the middle position of the upper connection plate 3, a first main bevel gear 6 is installed at the top end of the first main rotating shaft 5, a first middle groove 7 is provided at the middle position of the upper surface of the upper connection plate 3, six groups of first slave bevel gears 9 are provided at equal intervals on the inner side surface of the first middle groove 7, first slave threaded rods 8 are provided through the six groups of first slave threaded rods 9, first sliding blocks 10 are sleeved on the outer sides of the six groups of first slave threaded rods 8, and grooves 11 are provided on the six groups of first sliding blocks 10;

[0034] As an embodiment of the present invention, refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 A second main rotating shaft 13 is movably provided through the middle position of the lower connecting disk 4, and a second main bevel gear 14 is installed at the bottom end of the second main rotating shaft 13. A second intermediate groove 15 is provided in the middle position of the upper surface of the lower connecting disk 4, and six groups of second slave bevel gears 17 are evenly spaced on the inner side surface of the second intermediate groove 15. Second slave threaded rods 16 are provided through the six groups of second slave threaded rods 17, and second sliding blocks 18 are sleeved on the outer sides of the six groups of second slave threaded rods 16, and protrusions 19 are provided on the six groups of second sliding blocks 18.

[0035] The outer diameters of the upper connecting disk 3 and the lower connecting disk 4 are the same, and an intermediate ring plate 21 is arranged between the upper connecting disk 3 and the lower connecting disk 4. A dual-axis motor 22 is fixedly installed on the inner side of the intermediate ring plate 21, and the first main rotating shaft 5 and the second main rotating shaft 13 are respectively fixedly connected to the two output ends of the dual-axis motor 22. The first main bevel gear 6 is located at the inner bottom of the first middle groove 7, and the six groups of first slave bevel gears 9 are all meshed with the first main bevel gear 6. The second main bevel gear 14 is located at the inner top of the second middle groove 15, and the six groups of second slave bevel gears 17 are all meshed with the second main bevel gear 14.

[0036] The six groups of first sliding blocks 10 are respectively threadedly connected to the six groups of first slave threaded rods 8, the upper surface of the upper connecting plate 3 is provided with six groups of first sliding grooves 12 at equal intervals, and the six groups of first sliding blocks 10 are respectively located inside the first sliding grooves 12, the six groups of second sliding blocks 18 are respectively threadedly connected to the six groups of second slave threaded rods 16, the lower surface of the lower connecting plate 4 is provided with six groups of second sliding grooves 20 at equal intervals, and the six groups of second sliding blocks 18 are respectively located inside the six groups of second sliding grooves 20.

[0037] Specifically, the dual-axis motor 22 on the inner side of the intermediate ring plate 21 is started to drive the first main rotating shaft 5 and the second main rotating shaft 13 to rotate together, thereby driving the first main bevel gear 6 in the first intermediate groove 7 to rotate, and then driving the six groups of first slave threaded rods 8 to rotate through the meshing first main bevel gear 6 and the first slave bevel gear 9, and driving the six groups of first sliding blocks 10 to move along the six groups of first sliding grooves 12 respectively through the threaded connection between the first slave threaded rod 8 and the first sliding block 10, and at the same time, the rotation of the second main rotating shaft 13 will drive the second main bevel gear 14 in the second intermediate groove 15 to rotate. The six groups of second slave threaded rods 16 are driven to rotate through the meshing second main bevel gear 14 and the second slave bevel gear 17, and then the six groups of second slide blocks 18 are driven to move along the six groups of second slide grooves 20 respectively through the threaded connection between the second slave threaded rod 16 and the second slide block 18, and the ends of the first column pile 1 and the second column pile 2 are produced through the six groups of grooves 11 and the six groups of protrusions 19. The prefabricated parts on the connecting device can be adjusted according to actual needs so that it can adapt to the endless sheet piles of different outer diameters, which is beneficial to improving the use range of the connecting device.

[0038] As an embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 5 , Fig. 9 The six groups of first sliding blocks 10 and the six groups of second sliding blocks 18 are all fixedly connected with sliding tubes 23, and the ends of the sliding tubes 23 are fixedly connected with movable vertical plates 24. An adjusting screw 25 is provided through the movable vertical plate 24 near the middle position, and one end of the adjusting screw 25 is fixedly connected with a movable block 26, and the outer side of the movable block 26 is movably connected with a fixed groove block 28. A limiting plate 27 is fixedly connected to the fixed groove block 28, and one side of the limiting plate 27 is fixedly connected with a limiting sliding rod 29 near both ends.

[0039] Six groups of sliding openings 32 are evenly spaced through the outer side surfaces of the upper connecting plate 3 and the lower connecting plate 4, and the sliding tube 23 is located on the inner side of the sliding opening 32. A threaded hole 30 is penetrated near the middle position on the movable vertical plate 24, and the movable vertical plate 24 is threadedly connected to the adjusting screw 25 through the threaded hole 30. The two groups of limiting slide rods 29 are symmetrically arranged about the adjusting screw 25.

[0040] Two groups of limit sliding holes 31 are formed through the movable vertical plate 24, and the two groups of limit sliding rods 29 are movably connected to the movable vertical plate 24 through the limit sliding holes 31. The inner side surface of the limit plate 27 is designed to be an arc surface. The six groups of limit plates 27 are respectively fitted with the first column pile 1 and the second column pile 2.

[0041] Specifically, when the six groups of first sliding blocks 10 and the six groups of second sliding blocks 18 move, they will respectively drive the six groups of sliding tubes 23 to move along the six groups of sliding openings 32, thereby respectively driving the six groups of movable vertical plates 24 to move, and then rotating the adjusting screw 25 through the threaded hole 30 on the movable vertical plate 24, thereby driving the limiting plate 27 to move relative to the movable vertical plate 24 through the movable block 26 and the fixed slot block 28 in cooperation with the two groups of limiting sliding rods 29 and the two groups of limiting sliding holes 31, until the limiting plate 27 is respectively fitted with the first column pile 1 and the second column pile 2, which can avoid relative displacement between the sheet pile and the connecting device during the production process of the endless sheet piles, ensure the production stability of the endless sheet piles, and significantly improve the production efficiency of the endless sheet piles.

[0042] As an embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 The upper and lower ends of the middle ring plate 21 are respectively fixedly connected with the first internal thread ring plate 37 and the second internal thread ring plate 38, the middle positions of the opposite surfaces of the upper connecting plate 3 and the lower connecting plate 4 are respectively fixedly connected with the first external thread ring 39 and the second external thread ring 40, six groups of spiral rods 34 are evenly spaced through the lower connecting plate 4, the upper ends of the six groups of spiral rods 34 are fixedly connected with connecting pipes 35, and the lower surface of the upper connecting plate 3 is evenly spaced and fixedly connected with six groups of connecting rods 36.

[0043] The first internal threaded ring plate 37 and the second internal threaded ring plate 38 have the same length, the first internal threaded ring plate 37 is threadedly connected to the first external threaded ring 39, the second internal threaded ring plate 38 is threadedly connected to the second external threaded ring 40, six groups of spiral notches 33 are evenly spaced through the lower connecting plate 4, and the six groups of spiral rods 34 are respectively threadedly connected to the lower connecting plate 4 through the spiral notches 33, and the six groups of connecting pipes 35 are respectively connected to the six groups of connecting rods 36.

[0044] The top end of the first main shaft 5 is threadedly connected with a first screw ring 41, the ends of the six groups of first slave threaded rods 8 are threadedly connected with second screw rings 42, and the six groups of second screw rings 42 are all located on the inner side of the first middle groove 7, the bottom end of the second main shaft 13 is threadedly connected with a third screw ring 43, the ends of the six groups of second slave threaded rods 16 are all threadedly connected with fourth screw rings 44, and the six groups of fourth screw rings 44 are all located on the inner side of the second middle groove 15.

[0045] Specifically, the first main bevel gear 6 and the second main bevel gear 14 are separated from the first main shaft 5 and the second main shaft 13 respectively through the threaded connection between the first screw ring 41 and the first main shaft 5 and the threaded connection between the third screw ring 43 and the second main shaft 13, and then the first slave bevel gear 9 and the second slave bevel gear 17 are separated from the first slave threaded rod 8 and the second slave threaded rod 16 respectively through the threaded connection between the second screw ring 42 and the first slave threaded rod 8 and the threaded connection between the fourth screw ring 44 and the second slave threaded rod 16, and then the six groups of connecting pipes 35 are respectively spirally moved downward through the threaded connection between the screw rod 34 and the lower connecting plate 4 until the six groups of connecting pipes 35 are respectively separated from the six groups of connecting rods 36, and then the upper connecting plate 3 and the lower connecting plate 4 are respectively moved away from the two sides of the intermediate ring plate 21 through the first internally threaded ring plate 37 and the first externally threaded ring 39 in cooperation with the second internally threaded ring plate 38 and the second externally threaded ring 40, thereby realizing the step-by-step disassembly function of the connecting device so as to replace and repair its faulty parts, which is conducive to the reuse of the connecting device.

[0046] Working principle: First, the staff starts the double-axis motor 22 on the inner side of the middle ring plate 21 to drive the first main rotating shaft 5 and the second main rotating shaft 13 to rotate together, thereby driving the first main bevel gear 6 in the first intermediate groove 7 to rotate, and then driving the six groups of first slave threaded rods 8 to rotate through the meshing first main bevel gear 6 and the first slave bevel gear 9, and driving the six groups of first sliding blocks 10 to move along the six groups of first sliding grooves 12 respectively through the threaded connection between the first slave threaded rod 8 and the first sliding block 10, and at the same time, the rotation of the second main rotating shaft 13 will drive the second main bevel gear 14 in the second intermediate groove 15 to rotate, thereby driving the six groups of second slave threaded rods 16 to rotate through the meshing second main bevel gear 14 and the second slave bevel gear 17, and then through the second The threaded connection between the threaded rod 16 and the second sliding block 18 drives the six groups of second sliding blocks 18 to move along the six groups of second sliding grooves 20 respectively, and the ends of the first column pile 1 and the second column pile 2 are produced through the six groups of grooves 11 and the six groups of protrusions 19. The prefabricated parts on the connecting device can be adjusted according to actual needs so that they can adapt to the endless sheet piles of different outer diameters, which is beneficial to improve the use range of the connecting device. Secondly, when the six groups of first sliding blocks 10 and the six groups of second sliding blocks 18 move, they will drive the six groups of sliding tubes 23 to move along the six groups of sliding ports 32 respectively, thereby driving the six groups of moving vertical plates 24 to move respectively, and then the adjusting screw 25 is rotated through the threaded hole 30 on the moving vertical plate 24, so as to move the movable block 26 The two sets of limit sliding rods 29 and the two sets of limit sliding holes 31 cooperate with the fixed groove block 28 to drive the limit plate 27 to move relative to the vertical plate 24 until the limit plate 27 is respectively fitted with the first column pile 1 and the second column pile 2, which can avoid relative displacement between the sheet pile and the connecting device during the production of the endless sheet pile, ensure the production stability of the endless sheet pile, and significantly improve the production efficiency of the endless sheet pile. Finally, when a component failure occurs in the connecting device, the first main bevel gear 6 and the second main bevel gear 14 are separated from the first main rotating shaft 5 and the second main rotating shaft 13 respectively through the threaded connection of the first screw ring 41 and the first main rotating shaft 5 and the threaded connection of the third screw ring 43 and the second main rotating shaft 13, and then the second screw ring 42 and the first slave threaded rod 8 are threaded. The connection and the threaded connection between the fourth screw ring 44 and the second threaded rod 16 make the first bevel gear 9 and the second bevel gear 17 separate from the first threaded rod 8 and the second threaded rod 16 respectively, and then the six groups of connecting pipes 35 are screwed downward respectively through the threaded connection between the screw rod 34 and the spiral groove 33 until the six groups of connecting pipes 35 are separated from the six groups of connecting rods 36 respectively, and then the first internal threaded ring plate 37 and the first external threaded ring 39 cooperate with the second internal threaded ring plate 38 and the second external threaded ring 40 to make the upper connecting plate 3 and the lower connecting plate 4 respectively move away from the two sides of the intermediate ring plate 21, thereby realizing the step-by-step disassembly function of the connecting device so as to replace and repair its faulty parts, which helps to reuse the connecting device and complete the operation.

[0047] In the description of the present invention, it should be understood that the terms "center", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected. The scope of protection claimed in the present invention is defined by the attached claims and their equivalents.

Claims

1. A connection device for the production of endless sheet piles, comprising a first column pile (1) located above a second column pile (2), characterized in that: It also comprises an upper connecting plate (3) and a lower connecting plate (4) located between the first column pile (1) and the second column pile (2); a first main rotating shaft (5) is movably provided in the middle position of the upper connecting plate (3); a first main bevel gear (6) is installed at the top end of the first main rotating shaft (5); a first middle groove (7) is provided in the middle position of the upper surface of the upper connecting plate (3); six groups of first secondary bevel gears (9) are provided at equal intervals on the inner side surface of the first middle groove (7); a first secondary threaded rod (8) is provided through the six groups of the first secondary bevel gears (9); a first sliding block (10) is sleeved on the outer side of the six groups of the first secondary threaded rods (8); and a groove (11) is provided on the six groups of the first sliding blocks (10); A second main rotating shaft (13) is movably provided through the middle position of the lower connecting plate (4), a second main bevel gear (14) is installed at the bottom end of the second main rotating shaft (13), a second middle groove (15) is provided in the middle position of the upper surface of the lower connecting plate (4), six groups of second secondary bevel gears (17) are provided at equal intervals on the inner side surface of the second middle groove (15), a second secondary threaded rod (16) is provided through the six groups of the second secondary bevel gears (17), a second sliding block (18) is sleeved on the outer side of the six groups of the second secondary threaded rod (16), and a protrusion (19) is provided on the six groups of the second sliding blocks (18); The outer diameters of the upper connecting disk (3) and the lower connecting disk (4) are the same; an intermediate ring plate (21) is provided between the upper connecting disk (3) and the lower connecting disk (4); a dual-axis motor (22) is fixedly mounted on the inner side of the intermediate ring plate (21); and the first main rotating shaft (5) and the second main rotating shaft (13) are respectively fixedly connected to the two output ends of the dual-axis motor (22); the first main bevel gear (6) is located at the inner bottom of the first middle groove (7); the six groups of the first slave bevel gears (9) are all meshed with the first main bevel gear (6); the second main bevel gear (14) is located at the inner top of the second middle groove (15); and the six groups of the second slave bevel gears (17) are all meshed with the second main bevel gear (14); The six groups of the first sliding blocks (10) are respectively threadedly connected to the six groups of the first slave threaded rods (8); the upper surface of the upper connecting plate (3) is provided with six groups of first sliding grooves (12) at equal intervals, and the six groups of the first sliding blocks (10) are respectively located inside the first sliding grooves (12); the six groups of the second sliding blocks (18) are respectively threadedly connected to the six groups of the second slave threaded rods (16); the lower surface of the lower connecting plate (4) is provided with six groups of second sliding grooves (20) at equal intervals, and the six groups of the second sliding blocks (18) are respectively located inside the six groups of the second sliding grooves (20).

2. A connection device for endless sheet pile production according to claim 1, characterized in that: The six groups of the first sliding blocks (10) and the six groups of the second sliding blocks (18) are all fixedly connected with a sliding tube (23), the end of the sliding tube (23) is fixedly connected with a movable vertical plate (24), an adjusting screw (25) is provided through the movable vertical plate (24) near the middle position, one end of the adjusting screw (25) is fixedly connected with a movable block (26), the outer side of the movable block (26) is movably connected with a fixed groove block (28), the fixed groove block (28) is fixedly connected with a limiting plate (27), and one side of the limiting plate (27) near both ends is fixedly connected with a limiting sliding rod (29).

3. A connection device for endless sheet pile production according to claim 2, characterized in that: Six groups of sliding openings (32) are formed at even intervals through the outer side surfaces of the upper connecting plate (3) and the lower connecting plate (4), and the sliding tube (23) is located inside the sliding opening (32). A threaded hole (30) is formed through the movable vertical plate (24) near the middle, and the movable vertical plate (24) is threadedly connected to the adjusting screw (25) through the threaded hole (30). The two groups of limiting sliding rods (29) are symmetrically arranged with respect to the adjusting screw (25).

4. A connection device for endless sheet pile production according to claim 3, characterized in that: The movable vertical plate (24) is provided with two groups of limit sliding holes (31), and the two groups of limit sliding rods (29) are movably connected to the movable vertical plate (24) through the limit sliding holes (31), respectively. The inner side surface of the limit plate (27) is designed to be an arc surface, and the six groups of limit plates (27) are respectively fitted with the first column pile (1) and the second column pile (2).

5. A connection device for endless sheet pile production according to claim 1, characterized in that: The upper and lower ends of the intermediate ring plate (21) are respectively fixedly connected to a first internally threaded ring plate (37) and a second internally threaded ring plate (38); the middle positions of the opposing surfaces of the upper connecting plate (3) and the lower connecting plate (4) are respectively fixedly connected to a first externally threaded ring (39) and a second externally threaded ring (40); six groups of spiral rods (34) are evenly spaced and penetrate the lower connecting plate (4); the upper ends of the six groups of spiral rods (34) are all fixedly connected to connecting pipes (35); and six groups of connecting rods (36) are evenly spaced and fixedly connected to the lower surface of the upper connecting plate (3).

6. A connection device for endless sheet pile production according to claim 5, characterized in that: The first internally threaded ring plate (37) and the second internally threaded ring plate (38) are of the same length; the first internally threaded ring plate (37) is threadedly connected to the first externally threaded ring (39); the second internally threaded ring plate (38) is threadedly connected to the second externally threaded ring (40); six groups of spiral notches (33) are formed on the lower connecting plate (4) at equal intervals, and the six groups of spiral rods (34) are respectively threadedly connected to the lower connecting plate (4) through the spiral notches (33); and the six groups of connecting pipes (35) are respectively connected to the six groups of connecting rods (36).

7. A connection device for endless sheet pile production according to claim 1, characterized in that: The top end of the first main rotating shaft (5) is threadedly connected with a first screw ring (41), the ends of the six groups of the first slave threaded rods (8) are all threadedly connected with second screw rings (42), and the six groups of the second screw rings (42) are all located on the inner side surface of the first middle groove (7), the bottom end of the second main rotating shaft (13) is threadedly connected with a third screw ring (43), the ends of the six groups of the second slave threaded rods (16) are all threadedly connected with fourth screw rings (44), and the six groups of the fourth screw rings (44) are all located on the inner side surface of the second middle groove (15).

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