A combined structure of Larssen steel sheet piles and ALC panels

Abstract

The present invention relates to a combined structure of a Larssen steel sheet pile and an ALC board, belonging to the technical field of Larssen steel sheet pile; it includes a cofferdam, which is formed by sequentially fitting a circle of Larssen steel sheet piles. An ALC board body is arranged inside the Larssen steel sheet pile. The Larssen steel sheet pile and the ALC board body are connected by a connecting mechanism. The connecting mechanism includes a fixed seat and a connecting seat. The fixed seat is detachably connected to the connecting seat. The fixed seat is inserted into the Larssen steel sheet pile. The ALC board body is arranged inside the connecting seat. A first nut and an expandable support rod are arranged on the fixed seat. The Larssen steel sheet pile and the fixed seat are fixed by the first nut and the support rod; the ALC board body is arranged on the connecting seat. A lifting tool is arranged at the upper end of the ALC board body, and a lower side locking component is arranged at the lower end of the connecting seat. The lifting tool is connected to the lower side locking component through a transmission component. When the transmission component acts, the lower side locking component is locked, and at the same time, the lifting tool is unlocked; it solves the problem of the cumbersome assembly process of the current Larssen steel sheet pile and the ALC board.

Description

Technical Field

[0001] The present invention belongs to the technical field of Larssen sheet piles, and particularly relates to a combined structure of Larssen sheet piles and ALC boards. Background Art

[0002] In the field of construction engineering, Larssen sheet piles are widely used in the construction of cofferdams, foundation pit support and other structures due to their good strength and waterproof performance. To meet the diverse engineering needs, ALC boards are often combined with Larssen sheet piles for use.

[0003] Currently, the traditional connection method usually involves drilling holes in the ALC boards to achieve their connection with the Larssen sheet piles. However, in the subsequent concrete pouring operation, since the drilling destroys the original structural integrity of the ALC boards, when the pressure and vibration force generated by the concrete pouring are applied to the ALC boards, the ALC boards are extremely prone to fracture. This fracture problem not only causes the ALC boards to fail to function properly, seriously weakens the stability of the overall structure, but also leads to rework phenomena, significantly increasing the construction cost and time cost.

[0004] In addition, the existing assembly process of Larssen sheet piles and ALC boards is extremely cumbersome. In the preparation stage, holes need to be drilled in the ALC boards, and then a variety of complex connecting components need to be installed on the Larssen sheet piles, and precise positioning and debugging are required during the installation of each component. During the installation process, any slight operation deviation may have a negative impact on the performance of the entire combined structure. Such complex assembly steps greatly reduce the construction efficiency, significantly extend the project cycle, and seriously hinder the efficient progress of the project. Summary of the Invention

[0005] The present invention overcomes the deficiencies of the prior art and provides a combined structure of Larssen sheet piles and ALC boards, solving the problem of the cumbersome assembly process of current Larssen sheet piles and ALC boards.

[0006] To achieve the above object, the present invention is realized through the following technical solutions.

[0007] A combined structure of a Larssen steel sheet pile and an ALC board, including a cofferdam, which is formed by sequentially fitting a circle of Larssen steel sheet piles. An ALC board body is arranged inside the Larssen steel sheet pile, and the Larssen steel sheet pile and the ALC board body are connected by a connecting mechanism. The connecting mechanism includes a fixed seat and a connecting seat. The fixed seat is detachably connected to the connecting seat, and the fixed seat is inserted into the Larssen steel sheet pile. The ALC board body is arranged inside the connecting seat. A first nut and an expandable support rod are arranged on the fixed seat, and the Larssen steel sheet pile and the fixed seat are fixed by the first nut and the support rod. The ALC board body is arranged on the connecting seat. A lifting tool is arranged at the upper end of the ALC board body, and a lower locking component is arranged at the lower end of the connecting seat. The lifting tool is connected to the lower locking component through a transmission component. When the transmission component operates, the lower locking component is locked and the lifting tool is unlocked at the same time.

[0008] Further, a first groove is arranged inside the fixed seat, and the opening of the first groove faces the connecting seat side; two clamping grooves are arranged on the side wall of the end of the first groove far away from the opening. A first connecting seat is fixedly arranged at the end of the first groove far away from the opening. A first clamping seat is fixedly arranged on each side of the first connecting seat, and the two first clamping seats are respectively located inside the two clamping grooves; a first threaded rod is rotatably inserted inside the first groove, and the inner end of the first threaded rod is rotatably connected to the first connecting seat; a second connecting seat is screwed on the outer side of the first threaded rod. A second clamping seat is fixedly arranged on each side of the second connecting seat, and the two second clamping seats are respectively located inside the two clamping grooves; two of the support rods are arranged between the first clamping seat and the second clamping seat inside the same clamping groove. The closer ends of the two support rods are hinged to each other, and the farther ends of the two support rods are respectively hinged to the first clamping seat and the second clamping seat; the first nut is screwed on the outside of the fixed seat.

[0009] Further, an annular clamping groove is arranged on the inner wall of the end of the first groove close to the opening; two symmetrical sliding grooves are arranged on the inner wall of the clamping groove. An unlocking ring is slidably arranged inside the clamping groove. Two symmetrical sliding blocks are fixedly arranged on the outer side of the unlocking ring, and the two sliding blocks are respectively slidably inserted into the two sliding grooves; an annular tapered extrusion block is arranged at the opening on the side of the unlocking ring far away from the first connecting seat.

[0010] Further, a second threaded rod is fixedly arranged on the connecting seat. A sleeve is screwed on the outer side of the second threaded rod. A hexagonal plate is fixedly sleeved on the outer side of the end of the sleeve close to the second threaded rod. A circle of blocks arranged in a circular array is arranged at the end of the sleeve far away from the second threaded rod. A tapered block is fixedly arranged at the end of each block far away from the sleeve.

[0011] Further, the connecting seat includes a main body plate, an upper horizontal plate, a lower horizontal plate, and a vertical plate; the second threaded rod is fixedly arranged on one end face of the main body plate; the upper horizontal plate is fixedly connected to the upper edge of one end face of the main body plate close to the second threaded rod, and the lower horizontal plate is fixedly connected to the lower edge of the end face of the main body plate far from the second threaded rod; the vertical plate is parallel to the main body plate, and the lower edge of the vertical plate is fixedly connected to the edge of the lower horizontal plate far from the main body plate; a pulling plate is fixedly arranged at each of the upper ends on both sides of the main body plate.

[0012] Further, the lower locking assembly includes a fixing plate and a connecting seat; two symmetric horizontal grooves are arranged on the upper end face of the lower horizontal plate, and a vertical groove is arranged on one end face of the vertical plate close to the main body plate; one end of the two horizontal grooves far from the main body plate is communicated with the vertical groove; a connecting plate is slidably arranged in each of the two horizontal grooves, and a vertical fixing plate is arranged inside the vertical groove; one end of the two connecting plates far from the main body plate is fixedly connected to the lower end of the fixing plate.

[0013] Further, the transmission assembly includes a spring piece, a plug pin, and a lever; three receiving grooves are arranged on one end face of the main body plate far from the second threaded rod, and a plug pin hole is arranged at the center of the end face at the inner end of the receiving groove; an arc-shaped spring piece is arranged in each of the receiving grooves, the upper and lower ends of the spring piece are respectively fixedly connected to the upper and lower ends inside the receiving groove, and the middle part of the spring piece protrudes outwards; a plug pin is fixedly arranged at the center of the inner side face of the spring piece, the plug pin is inserted into the plug pin hole of the receiving groove, two second grooves are arranged on the outer cylindrical surface of the plug pin, a first spring is fixedly arranged at one end of each of the second grooves, a limiting block is fixedly arranged at the outer end of the first spring, and a lever is rotatably arranged at one end of the two plug pins far from the spring piece, the lever is located on the side of the main body plate close to the second threaded rod, and the middle part of the lever is hinged to the plug pin.

[0014] Further, the transmission assembly further includes a friction strip and a second spring; a square third groove is arranged inside the upper horizontal plate, a friction strip is slidably arranged inside the third groove, a second spring is fixedly arranged at one end of the third groove, and the second spring is fixedly connected to the friction strip; two trapezoidal blocks are fixedly arranged at the lower end of the friction strip; a contact inclined surface is arranged on one side of the two trapezoidal blocks far from the second spring.

[0015] Further, the transmission assembly further includes a push block, a rack, a one-way gear, a driving gear, a driven gear, and a fourth threaded rod. A U-shaped push block is sleeved outside the lower ends of the two levers respectively, and the two push blocks are fixedly connected by a horizontal connecting rod. A connecting cavity is respectively arranged inside the lower ends on both sides of the main body plate, and the two connecting cavities are respectively communicated with the two horizontal grooves. One end of each of the two push blocks extends into the two connecting cavities respectively, and a vertical rack is fixedly arranged at the end of the push block extending into the connecting cavity. A vertical third spring is fixedly arranged between the lower end of the rack and the bottom surface of the connecting cavity. A one-way gear is rotatably arranged inside the connecting cavity, and the one-way gear meshes with the rack. A driving gear is fixedly arranged at the axis of the one-way gear, a fourth threaded rod is rotatably arranged inside the connecting cavity, a driven gear is fixedly sleeved outside the fourth threaded rod, and the driven gear meshes with the driving gear. The fourth threaded rods inside the two connecting cavities are respectively screwed with the two connecting plates.

[0016] Furthermore, the lifting appliance includes a clamping sleeve, the clamping sleeve is a U-shaped plate-like structure with an opening facing downwards, a clamping plate is arranged inside the clamping sleeve, two threaded holes are arranged on the side wall of the clamping sleeve, a third threaded rod is screwed inside each threaded hole, the inner end of the third threaded rod is rotatably connected with the clamping plate, and a friction wheel is fixedly arranged at the outer end of the third threaded rod.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] First of all, through the unique design of the connection mechanism, the traditional method of punching and fixing the ALC board is abandoned, and the structural integrity of the ALC board is maintained to the greatest extent. During the concrete pouring process, the risk of fracture of the ALC board caused by punching is avoided under the action of pressure and vibration force. This not only ensures the normal use function of the ALC board, but also greatly improves the overall structural stability, effectively reduces the rework probability caused by the fracture of the ALC board, and significantly reduces the construction cost and time cost.

[0019] Secondly, in terms of assembly, the connection mechanism of this combined structure is ingeniously designed, greatly simplifying the assembly process. There is no need to perform complex pre-treatment such as punching on the ALC board. The connection components such as the fixed seat and the connection seat are installed conveniently, and the connection and positioning accuracy between the components is easier to control. Even if there are certain deviations during the construction operation process, it will not have a great impact on the overall structural performance. This greatly improves the construction efficiency, significantly shortens the project cycle, and strongly promotes the efficient progress of the project, having extremely high promotion value in practical engineering applications. Description of the Drawings

[0020] The following further describes the present invention in detail with reference to the drawings:

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the connection between the Larssen steel sheet pile and the ALC board body through the connecting mechanism;

[0023] Figure 3 is the connection schematic diagram of the fixed seat and the connecting seat;

[0024] Figure 4 is the connection schematic diagram of the fixed seat and the sleeve;

[0025] Figure 5 is the exploded view of the fixed seat and the sleeve;

[0026] Figure 6 is the structural schematic diagram of the connecting seat;

[0027] Figure 7 is the connection schematic diagram of the elastic piece and the bolt;

[0028] Figure 8 is the connection schematic diagram of the connecting seat and the transmission component;

[0029] Figure 9 is the structural schematic diagram after the connecting seat is sectioned Figure One ;

[0030] Figure 10 is the structural schematic diagram after the connecting seat is sectioned Figure Two ;

[0031] Figure 11 is the connection schematic diagram of the ALC board body and the lifting appliance;

[0032] Figure 12 is Figure 10 the partial enlarged schematic diagram at position A in

[0033] Among them, 1 is a cofferdam, 2 is the ALC board body, 3 is a fixed seat, 4 is a connecting seat, 5 is a first groove, 6 is a first threaded rod, 7 is a first connecting seat, 8 is a second connecting seat, 10 is a support rod, 11 is a card slot, 12 is a first nut, 13 is a sliding groove, 14 is an unlocking ring, 15 is a conical extrusion block, 16 is a second threaded rod, 17 is a sleeve, 18 is a conical block, 19 is a driving gear, 20 is a threaded hole, 21 is a pulling plate, 22 is a receiving groove, 23 is a spring piece, 24 is a bolt, 25 is a second groove, 26 is a first spring, 27 is a limiting block, 28 is a lever, 29 is a third groove, 30 is a friction strip, 31 is a trapezoidal block, 32 is a clamping sleeve, 33 is a third threaded rod, 34 is a clamping plate, 35 is a friction wheel, 36 is a pushing block, 37 is a rack, 38 is a one-way gear, 39 is a driven gear, 40 is a fourth threaded rod, 41 is a fixing plate, 42 is a connecting plate, 43 is a second spring, 44 is a third spring, 45 is a main body plate, 46 is an upper horizontal plate, 47 is a lower horizontal plate, 48 is a vertical plate. Specific embodiments

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail in conjunction with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solutions of the present invention will be described in detail below in conjunction with embodiments and drawings, but the protection scope is not limited by this.

[0035] As Figure 1 As shown in FIGS. 1-12, the present invention provides a combined structure of a Larssen steel sheet pile and an ALC board, including a cofferdam 1, which is formed by sequentially fitting a circle of Larssen steel sheet piles. An ALC board body 2 is arranged inside the Larssen steel sheet pile. The Larssen steel sheet pile and the ALC board body 2 are connected by a connecting mechanism. The connecting mechanism includes a fixed seat 3 and a connecting seat 4. The fixed seat 3 is detachably connected to the connecting seat 4. The fixed seat 3 is inserted into the Larssen steel sheet pile. The ALC board body 2 is arranged inside the connecting seat 4. A first nut 12 and an expandable support rod 10 are arranged on the fixed seat 3. The Larssen steel sheet pile and the fixed seat 3 are fixed by the first nut 12 and the support rod 10. The ALC board body 2 is arranged on the connecting seat 4. A lifting tool is arranged at the upper end of the ALC board body 2. A lower side locking component is arranged at the lower end of the connecting seat 4. The lifting tool is connected to the lower side locking component through a transmission component. When the transmission component acts, the lower side locking component is locked, and at the same time, the lifting tool is unlocked.

[0036] The fixed seat 3 has a cylindrical structure with one end open. Inside the fixed seat 3, there is a first groove 5, and the opening of the first groove 5 faces the side of the connecting seat 4. On the side wall of the end of the first groove 5 far from the opening, there are two symmetrically arranged square clamping grooves, and the length direction of the clamping grooves is parallel to the axis direction of the first groove 5. At the end of the first groove 5 far from the opening, a first connecting seat 7 is fixedly arranged, and on each side of the first connecting seat 7, a first clamping seat is fixedly arranged, and the two first clamping seats are respectively located inside the two clamping grooves. Inside the first groove 5, a first threaded rod 6 is rotatably inserted, the inner end of the first threaded rod 6 is rotatably connected to the first connecting seat 7, and a hexagonal block is fixedly arranged at the outer end of the first threaded rod 6. A circular second connecting seat 8 is screwed on the outer side of the first threaded rod 6, and on each side of the second connecting seat 8, a second clamping seat is fixedly arranged, and the two second clamping seats are respectively located inside the two clamping grooves. Between the first clamping seat and the second clamping seat inside the same clamping groove, there are two of the support rods 10. The closer ends of the two support rods 10 are hinged to each other, and the farther ends of the two support rods 10 are respectively hinged to the first clamping seat and the second clamping seat. The first nut 12 is screwed on the outer side of the fixed seat 3.

[0037] On the inner wall of the end of the first groove 5 close to the opening, there is a circular clamping groove 11, and the hexagonal block on the first threaded rod 6 is located at the inner end of the clamping groove 11; on the inner wall of the clamping groove 11, there are two symmetrically arranged sliding grooves 13, the extending direction of the sliding grooves 13 is parallel to the axis direction of the first groove 5, and the sliding grooves 13 communicate with the outer side surface of the fixed seat 3. Inside the clamping groove 11, a circular unlocking ring 14 is slidably arranged. On the outer side surface of the unlocking ring 14, there are two symmetrically arranged sliding blocks, and the two sliding blocks are respectively slidably inserted into the two sliding grooves 13, and the outer ends of the sliding blocks extend to the outer side of the fixed seat 3. At the opening on the side of the unlocking ring 14 far from the first connecting seat 7, there is a circular conical pressing block 15, and the inner diameter of the end of the conical pressing block 15 far from the first connecting seat 7 is larger than the inner diameter of the end of the conical pressing block 15 close to the first connecting seat 7.

[0038] On the connecting seat 4, a second threaded rod 16 is fixedly arranged, a sleeve 17 is screwed on the outer side of the second threaded rod 16, a hexagonal plate is fixedly sleeved on the outer side of the end of the sleeve 17 close to the second threaded rod 16, and at the end of the sleeve 17 far from the second threaded rod 16, there is a circular array of clamping blocks arranged. At the end of each clamping block far from the sleeve 17, a conical block 18 is fixedly arranged, the outer diameter of the end of the conical block 18 close to the clamping block is larger than the outer diameter of the end of the conical block 18 far from the clamping block, and the outer diameter of the end of the conical block 18 close to the clamping block is larger than the outer diameter of the sleeve 17.

[0039] The connecting seat 4 includes a main body plate 45, an upper horizontal plate 46, a lower horizontal plate 47, and a vertical plate 48; the main body plate 45 is a vertically arranged square plate-like structure, the second threaded rod 16 is fixedly arranged on one end face of the main body plate 45, and the second threaded rod 16 is perpendicular to the main body plate 45; the upper horizontal plate 46 and the lower horizontal plate 47 are both horizontally arranged square plate-like structures, the upper horizontal plate 46 is fixedly connected to the upper edge of the end face of the main body plate 45 close to the second threaded rod 16, and the lower horizontal plate 47 is fixedly connected to the lower edge of the end face of the main body plate 45 away from the second threaded rod 16; the vertical plate 48 is a vertically arranged square plate-like structure, the vertical plate 48 is parallel to the main body plate 45, and the lower edge of the vertical plate 48 is fixedly connected to the edge of the lower horizontal plate 47 away from the main body plate 45.

[0040] On both upper ends of the end face of the main body plate 45 close to the second threaded rod 16, a screw hole 20 is respectively arranged, and on both upper ends of the main body plate 45, a pull plate 21 is fixedly arranged respectively. The two pull plates 21 are symmetrical left and right. The pull plate 21 is a horizontally arranged U-shaped structure, the U-shaped openings of the two pull plates 21 face each other, and a fixing bolt passes through the rear ends of the two pull plates 21 and is screwed into the screw hole 20 on the main body plate 45, so as to fixedly connect the pull plate 21 and the main body plate 45.

[0041] The lifting tool includes a clamping sleeve 32. The clamping sleeve 32 is a U-shaped plate-like structure with an opening facing downwards. A clamping plate 34 is arranged inside the clamping sleeve 32. Two threaded holes are arranged on the side wall of the clamping sleeve 32. A third threaded rod 33 is screwed into each threaded hole. The inner end of the third threaded rod 33 is rotatably connected to the clamping plate 34, and a friction wheel 35 is fixedly arranged at the outer end of the third threaded rod 33.

[0042] The lower locking assembly includes a fixing plate 41 and a connecting seat 4.

[0043] On the upper end face of the lower horizontal plate 47, two symmetrical horizontal grooves are arranged. On the end face of the vertical plate 48 close to the main body plate 45, a vertical groove is arranged. One end of the two horizontal grooves away from the main body plate 45 is communicated with the vertical groove. A horizontal connecting plate 42 is respectively slidably arranged in the two horizontal grooves, and a vertical fixing plate 41 is arranged inside the vertical groove. One end of the two connecting plates 42 away from the main body plate 45 is fixedly connected to the lower end of the fixing plate 41.

[0044] The transmission assembly includes a spring piece 23, a plug pin 24, a lever 28, a friction strip 30, a second spring 43, a push block 36, a rack 37, a one-way gear 38, a driving gear 19, a driven gear 39, and a fourth threaded rod 40.

[0045] On one side end face of the main body plate 45 away from the second threaded rod 16, there are three receiving grooves 22 arranged horizontally. The receiving grooves 22 are of square structure. At the center of the end face at the inner end of the receiving groove 22, there is a pin hole. Inside each receiving groove 22, there is respectively an arc-shaped elastic piece 23. The upper and lower ends of the elastic piece 23 are fixedly connected to the upper and lower ends inside the receiving groove 22 respectively, and the middle part of the elastic piece 23 protrudes outward. At the center of the inner side face of the elastic piece 23, there is fixedly arranged a cylindrical pin 24. The pin 24 is inserted into the pin hole of the receiving groove 22. On the outer cylindrical surface of the pin 24, there are two second grooves 25 arranged along the radial direction of the pin 24. At the inner end of each second groove 25, there is fixedly arranged a first spring 26. The outer end of the first spring 26 is fixedly arranged with a limiting block 27. The outer end face of the limiting block 27 maintains an arc-shaped structure on the side edge away from the elastic piece 23. At the ends of the two pins 24 away from the elastic piece 23, there are respectively rotatably arranged a lever 28. The lever 28 is located on the side of the main body plate 45 close to the second threaded rod 16, and the middle part of the lever 28 is hinged to the pin 24.

[0046] Inside the upper horizontal plate 46, there is a square third groove 29. Inside the third groove 29, there is a friction strip 30 slidingly arranged. At the inner end of the third groove 29, there is fixedly arranged a second spring 43, and the second spring 43 is fixedly connected to the friction strip 30. At the lower end of the friction strip 30, there are fixedly arranged two trapezoidal blocks 31, and the two trapezoidal blocks 31 are arranged corresponding to the two levers 28; on the side of the two trapezoidal blocks 31 away from the second spring 43, there is a contact inclined surface, and the end of the contact inclined surface away from the second spring 43 gradually moves away from the main body plate 45.

[0047] On the outer sides of the lower ends of the two levers 28, there is respectively sleeved a U-shaped push block 36, and the two push blocks 36 are fixedly connected by a horizontal connecting rod.

[0048] Inside the lower parts on both sides of the main body plate 45, there are respectively arranged a connecting cavity, and the two connecting cavities are respectively communicated with the two horizontal grooves. One ends of the two push blocks 36 respectively extend into the two connecting cavities. At the end of the push block 36 extending into the connecting cavity, there is fixedly arranged a vertical rack 37. Between the lower end of the rack 37 and the bottom surface of the connecting cavity, there is fixedly arranged a vertical third spring 44. Inside the connecting cavity, there is a one-way gear 38 rotatably arranged, and the one-way gear 38 meshes with the rack 37. At the axis center of the one-way gear 38, there is fixedly arranged a driving gear 19. Inside the connecting cavity, there is a fourth threaded rod 40 rotatably arranged. The fourth threaded rod 40 is perpendicular to the main body plate 45. On the outer side of the fourth threaded rod 40, there is fixedly sleeved a driven gear 39, and the driven gear 39 meshes with the driving gear 19. The fourth threaded rods 40 inside the two connecting cavities are respectively screwed to the two connecting plates 42.

[0049] The working principle of the present invention is:

[0050] In the initial state, the distance between the first connection seat 7 and the second connection seat 8 is the longest. At this time, the first clamping seat and the second clamping seat are located at the two ends of the inner side of the clamping groove, and the two struts 10 between the first clamping seat and the second clamping seat are both located inside the clamping groove. Then the fixing seat 3 is inserted into the connection hole of the Larsen steel sheet pile, and then the inner hexagon socket 17 is inserted from the opening of the first groove 5 of the fixing seat 3. The first threaded rod 6 is rotated by the inner hexagon socket 17, and the first threaded rod 6 drives the second connection seat 8 to slide in the direction close to the first connection seat 7, so that the distance between the first connection seat 7 and the second connection seat 8 gradually decreases, and the first clamping seat and the second clamping seat gradually approach each other, so that the angle between the two struts 10 gradually decreases, and the connection of the two struts 10 extends to the outside of the clamping groove, thereby realizing the outward expansion of the struts 10. After the outward expansion, the two groups of struts 10 and the fixing seat 3 form a cross structure. Then rotate the first nut 12, and the first nut 12 gradually approaches the expanded support rod 10 until the first nut 12 contacts the Larsen steel sheet pile. The stretched steel sheet pile is clamped by the first nut 12 and the two groups of expanded support rods 10, thereby realizing the mutual fixation of the fixed seat 3 and the Larsen steel sheet pile.

[0051] Measure the distance between the Larsen steel sheet pile and the ALC board body 2, then rotate the sleeve 17, and the sleeve 17 moves along the axis of the second threaded rod 16, and continuously adjusts the distance between the sleeve 17 and the second threaded rod 16. During the movement of the sleeve 17, the end of the sleeve 17 away from the second threaded rod 16 is gradually inserted into the opening of the first groove 5 of the fixing seat 3, and a circle of conical blocks 18 on the sleeve 17 is clamped in the clamping groove 11 of the fixing seat 3, thereby preventing the sleeve 17 from being separated from the fixing seat 3. After the sleeve 17 stops rotating, the Larsen steel sheet pile is fixedly connected to the connecting seat 4 through the fixing seat 3, the sleeve 17, and the second threaded rod 16. When it is necessary to separate the fixing seat 3 from the connecting seat 4 at a later stage, the slider is used to drive the unlocking ring 14 to slide toward the side of the connecting seat 4, so that the conical extrusion block 15 on the unlocking ring 14 contacts a circle of conical blocks 18 on the sleeve 17, so that a circle of conical blocks 18 and a circle of clamping blocks are compressed, and the unlocking ring 14 continues to push the sleeve 17 to slide outward, so that the compressed circle of conical blocks 18 escapes from the opening of the fixing seat 3, thereby realizing the separation of the fixing seat 3 from the connecting seat 4.

[0052] The sleeve 32 is sleeved on the outer side of the upper end of the ALC board body 2, and the two friction wheels 35 are rotated. The friction wheels 35 drive the third threaded rod 33 to rotate, and the third threaded rod 33 drives the clamping plate 34 to continuously approach the ALC board body 2 until the clamping plate 34 clamps the upper end of the ALC board body 2.

[0053] Then, the ALC board body 2 is placed inside the connection seat 4 using a sling. When the ALC board body 2 is continuously lowered inside the connection seat 4, the spring sheet 23 is gradually squeezed, and the collision between the ALC board body 2 and the connection seat 4 is buffered by the spring sheet 23, thereby preventing the ALC board body 2 from being damaged. When the spring sheet 23 is squeezed, the latch 24 moves toward the side away from the spring sheet 23 until the two limit blocks 27 move to the side of the main plate 45 away from the ALC board body 2. Under the action of the rebound force of the first spring 26, the limit blocks 27 extend outward, thereby clamping the latch 24 with the main plate 45. When the latch 24 moves toward the side away from the spring sheet 23, the levers 28 are pushed outward, and the upper ends of the two levers 28 contact the contact slopes of the two trapezoidal blocks 31 and cannot move further, and the lower ends of the two levers 28 tilt outward and contact the two push blocks 36.

[0054] When the ALC board body 2 is completely placed inside the connection seat 4, the lower end of the ALC board body 2 contacts the upper end surface of the connection seat 4, and the lower end of the ALC board body 2 is located between the main plate 45 and the fixed plate 41. At this time, the two friction wheels 35 on the jacket 32 ​​contact the upper end surface of the friction strip 30.

[0055] Press the connecting rod downward to simultaneously drive the two push blocks 36 to move downward, the push blocks 36 drive the rack 37 to slide downward, the third spring 44 is compressed by the rack 37, the rack 37 drives the one-way gear 38 to rotate, the one-way gear 38 drives the driving gear 19 to rotate synchronously, the driving gear 19 drives the driven gear 39 to rotate, the driven gear 39 drives the fourth threaded rod 40 to rotate, the fourth threaded rod 40 drives the connecting plate 42 to slide in the direction close to the main plate 45, the connecting plate 42 drives the fixing plate 41 to slide in the direction close to the main plate 45, until the fixing plate 41 clamps the lower end of the ALC board body 2. Then, the two pull plates 21 are fixed to the upper ends of both sides of the main plate 45 by fixing bolts, and the two pull plates 21 fix the upper ends of both sides of the ALC board body 2, thereby completing the locking of the upper and lower sides of the ALC board body 2 by the connecting seat 4.

[0056] When the two push blocks 36 move downward, the two push blocks 36 drive the lower ends of the two levers 28 to rotate toward the direction close to the connecting seat 4, and the upper ends of the two levers 28 tilt outward. The upper ends of the two levers 28 interact with the contact slopes of the two trapezoidal blocks 31, driving the two trapezoidal blocks 31 to slide toward the direction close to the second spring 43. The two trapezoidal blocks 31 drive the friction strip 30 to slide toward the direction close to the second spring 43, and the second spring 43 is compressed. During the sliding process, the friction strip 30 drives the friction wheel 35 to rotate, and the friction wheel 35 drives the third threaded rod 33 to rotate, so that the clamping plate 34 is away from the upper end of the ALC board body 2, and the hanger is separated from the upper end of the ALC board body 2.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A Larsen steel sheet pile and ALC board combined structure, characterized by: The invention comprises a cofferdam (1), wherein the cofferdam (1) is formed by a circle of Larsen steel sheet piles being sequentially embedded, an ALC plate body (2) is arranged inside the Larsen steel sheet piles, the Larsen steel sheet piles and the ALC plate body (2) are connected via a connecting mechanism, the connecting mechanism comprising a fixing seat (3) and a connecting seat (4), the fixing seat (3) being detachably connected to the connecting seat (4), the fixing seat (3) being plugged into the inside of the Larsen steel sheet piles, the ALC plate body (2) being arranged inside the connecting seat (4), and the fixing seat (3) being detachably connected to the connecting seat (4). (3) is provided with a first nut (12) and an outwardly expandable support rod (10), and the Larsen steel sheet pile is fixed to the fixing seat (3) by means of the first nut (12) and the support rod (10); the ALC plate body (2) is arranged on the connecting seat (4), a sling is arranged at the upper end of the ALC plate body (2), and a lower locking assembly is arranged at the lower end of the connecting seat (4), the sling is connected to the lower locking assembly through a transmission assembly, and when the transmission assembly is actuated, the lower locking assembly is locked and the sling is unlocked at the same time.

2. The Larsen steel sheet pile and ALC board combined structure according to claim 1 is characterized in that: The fixing seat (3) is provided with a first groove (5) inside, and the opening of the first groove (5) faces one side of the connecting seat (4); two clamping grooves are provided on the side wall of the first groove (5) at one end away from the opening; a first connecting seat (7) is fixedly provided at the end of the first groove (5) away from the opening; a first clamping seat is fixedly provided on both sides of the first connecting seat (7); the two first clamping seats are respectively located inside the two clamping grooves; a first threaded rod (6) is rotatably inserted inside the first groove (5), and one end of the inner side of the first threaded rod (6) is engaged with the first connecting seat (7). Rotational connection; a second connection seat (8) is threadedly connected to the outer side of the first threaded rod (6), and a second clamping seat is fixedly arranged on both sides of the second connection seat (8), and the two second clamping seats are respectively located inside the two clamping grooves; two support rods (10) are arranged between the first clamping seat and the second clamping seat inside the same clamping groove, and the ends of the two support rods (10) that are close to each other are hinged to each other, and the ends of the two support rods (10) that are away from each other are respectively hinged to the first clamping seat and the second clamping seat; the first nut (12) is threadedly connected to the outer side of the fixed seat (3).

3. The Larsen steel sheet pile and ALC board combined structure according to claim 2 is characterized in that: An annular clamping groove (11) is provided on the inner wall of one end of the first groove (5) close to the opening; two symmetrical slide grooves (13) are provided on the inner wall of the clamping groove (11); an unlocking ring (14) is slidably provided inside the clamping groove (11); two symmetrical slide blocks are fixedly provided on the outer surface of the unlocking ring (14); the two slide blocks are respectively slidably inserted into the two slide grooves (13); and an annular conical extrusion block (15) is provided at the opening on one side of the unlocking ring (14) away from the first connecting seat (7).

4. The Larsen steel sheet pile and ALC board combined structure according to claim 3 is characterized in that: A second threaded rod (16) is fixedly arranged on the connecting seat (4), a sleeve (17) is threadedly connected to the outer side of the second threaded rod (16), a hexagonal plate is fixedly sleeved on the outer side of one end of the sleeve (17) close to the second threaded rod (16), and a circle of blocks arranged in a circular array is arranged on the end of the sleeve (17) away from the second threaded rod (16), and a conical block (18) is fixedly arranged on the end of each block away from the sleeve (17).

5. The Larsen steel sheet pile and ALC board combined structure according to claim 4 is characterized in that: The connecting seat (4) comprises a main body plate (45), an upper horizontal plate (46), a lower horizontal plate (47), and a vertical plate (48); the second threaded rod (16) is fixedly arranged on one end surface of the main body plate (45); the upper horizontal plate (46) is fixedly connected to the upper edge of the end surface of the main body plate (45) close to the second threaded rod (16), and the lower horizontal plate (47) is fixedly connected to the lower edge of the end surface of the main body plate (45) away from the second threaded rod (16); the vertical plate (48) is kept parallel to the main body plate (45), and the lower edge of the vertical plate (48) is fixedly connected to the edge of the side of the lower horizontal plate (47) away from the main body plate (45); and a pull plate (21) is fixedly arranged on the upper ends of both sides of the main body plate (45).

6. The Larsen steel sheet pile and ALC board combined structure according to claim 5, characterized in that: The lower locking assembly comprises a fixing plate (41) and a connecting plate (42); two symmetrical horizontal grooves are arranged on the upper end surface of the lower horizontal plate (47); a vertical groove is arranged on the end surface of the vertical plate (48) close to the main plate (45); the ends of the two horizontal grooves away from the main plate (45) are connected to the vertical groove; a connecting plate (42) is slidably arranged inside the two horizontal grooves, and a vertical fixing plate (41) is arranged inside the vertical groove; the ends of the two connecting plates (42) away from the main plate (45) are fixedly connected to the lower end of the fixing plate (41).

7. The Larsen steel sheet pile and ALC board combined structure according to claim 6, characterized in that: The transmission assembly comprises a spring piece (23), a latch (24), and a lever (28); three receiving grooves (22) are arranged on an end surface of the main body plate (45) away from the second threaded rod (16); a latch hole is arranged at the center of the end surface of one end of the inner side of the receiving groove (22); an arc-shaped spring piece (23) is arranged inside each receiving groove (22); the upper and lower ends of the spring piece (23) are respectively fixedly connected to the upper and lower ends inside the receiving groove (22), and the middle part of the spring piece (23) protrudes outward; a latch (24) is fixedly arranged at the center of the inner side surface of the spring piece (23), The latch pin (24) is inserted into the latch pin hole of the receiving groove (22), and two second grooves (25) are arranged on the outer cylindrical surface of the latch pin (24). A first spring (26) is fixedly arranged at one end of the inner side of each second groove (25), and a limit block (27) is fixedly arranged at one end of the outer side of the first spring (26). The two latch pins (24) on both sides are rotatably provided with a lever (28) at one end away from the spring sheet (23). The lever (28) is located on a side of the main plate (45) close to the second threaded rod (16), and the middle part of the lever (28) is hinged to the latch pin (24).

8. The Larsen steel sheet pile and ALC board combined structure according to claim 7, characterized in that: The transmission assembly further comprises a friction strip (30) and a second spring (43); a square third groove (29) is arranged inside the upper horizontal plate (46); a friction strip (30) is slidably arranged inside the third groove (29); a second spring (43) is fixedly arranged at one end of the inner side of the third groove (29); the second spring (43) is fixedly connected to the friction strip (30); two trapezoidal blocks (31) are fixedly arranged at the lower end of the friction strip (30); and a contact inclined surface is arranged on one side of the two trapezoidal blocks (31) away from the second spring (43).

9. The Larsen steel sheet pile and ALC board combined structure according to claim 8, characterized in that: The transmission assembly further comprises a push block (36), a rack (37), a one-way gear (38), a driving gear (19), a driven gear (39), and a fourth threaded rod (40); a U-shaped push block (36) is respectively sleeved on the outer sides of the lower ends of the two levers (28), and the two push blocks (36) are fixedly connected via a horizontal connecting rod; a connecting cavity is respectively provided inside the lower ends of both sides of the main plate (45), and the two connecting cavities are respectively connected to the two horizontal grooves; one end of the two push blocks (36) is respectively extended into the two connecting cavities, and a vertical gear is fixedly provided at the end of the push block (36) extending into the connecting cavity A rack (37) is provided, and a vertical third spring (44) is fixedly arranged between the lower end of the rack (37) and the bottom surface of the connecting cavity; a one-way gear (38) is rotatably arranged inside the connecting cavity, and the one-way gear (38) is meshed with the rack (37); a driving gear (19) is fixedly arranged at the axis of the one-way gear (38); a fourth threaded rod (40) is rotatably arranged inside the connecting cavity, and a driven gear (39) is fixedly sleeved on the outside of the fourth threaded rod (40), and the driven gear (39) is meshed with the driving gear (19); and the fourth threaded rods (40) inside the two connecting cavities are respectively screwed to the two connecting plates (42).

10. The Larsen steel sheet pile and ALC board combined structure according to claim 1, characterized in that: The sling comprises a jacket (32), the jacket (32) being a U-shaped plate structure with an opening facing downward, a clamping plate (34) being arranged inside the jacket (32), two threaded holes being arranged on the side wall of the jacket (32), a third threaded rod (33) being screwed inside each threaded hole, an inner end of the third threaded rod (33) being rotatably connected to the clamping plate (34), and a friction wheel (35) being fixedly arranged on an outer end of the third threaded rod (33).

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