Prestressed concrete pipe pile connection device

Abstract

The present invention discloses a prestressed concrete pipe pile connection device, which relates to the technical field of pipe pile connection structure, including a lower connecting pipe pile, a sealing structure is arranged above the lower connecting pipe pile, an upper connecting pipe pile is arranged above the sealing structure, mounting screws are arranged on the outer side of the sealing structure, a splicing seat structure and a connecting seat structure are respectively arranged inside the sealing structure, an assembling structure is arranged on the side of the splicing seat structure and the connecting seat structure away from each other, a pressure connecting rod structure is penetrated inside the splicing seat structure and the connecting seat structure; the splicing seat structure includes a connecting inner cylinder, a prism plate is fixedly connected to the outer surface of the connecting inner cylinder, and a spring rod fixing seat is fixedly connected to the inside of the prism plate, and the present invention realizes fixing and connection by using the deformation of the expansion strip of the expansion cylinder squeezed by the gravity of the upper connecting pipe pile by the pressure rod, so that the lower connecting pipe pile can be quickly positioned when connected with the upper connecting pipe pile, and the docking installation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of pipe pile connection structures, in particular to a prestressed concrete pipe pile connection device. Background Art

[0002] Prestressed concrete pipe pile connection is a commonly used pile foundation connection method in modern civil engineering. Prestressed concrete pipe piles are concrete pipe piles reinforced by prestressing technology. They have high bearing capacity and crack resistance and are suitable for foundation construction on poor foundations such as soft soil and alluvial soil. Prestressed concrete pipe pile connection plays an important role in civil engineering. Reasonable connection design and construction can significantly improve the overall performance of the pile foundation and ensure the safety and stability of the project. In specific applications, engineers need to select appropriate connection methods and design parameters according to different geological conditions and load requirements.

[0003] The patent with announcement number CN117702731B discloses a prestressed high-strength concrete pipe pile connection device, including a pipe body, an end plate is installed at the end of the pipe body, and the end plates are welded to each other when the pipe bodies are connected to each other; a connecting ring is installed at the connection of the pipe body, and the connecting ring is composed of two identical semicircular rings. The connecting ring is fixed to the connection on the pipe body by bolt locking, and a silicone layer is installed on the inner wall of the connecting ring. The silicone layer is tightly attached to the outer wall of the pipe body. The silicone layer seals and protects the connection of the pipe body, and the silicone layer is composed of parts respectively located on the inner walls of the two semicircular rings; the present invention has a simple structure, can improve the strength of the connection of the pipe body and seal and protect the connection, avoid moisture from penetrating into the pipe body or causing rust at the connection, and ensure that the pipe body connection is more reliable and firm, but this patent still has the problem that the connection using bolts requires a long time to be fixed and installed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a prestressed concrete pipe pile connection device, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a prestressed concrete pipe pile connection device, comprising a lower pipe pile, a sealing structure is arranged above the lower pipe pile, an upper pipe pile is arranged above the sealing structure, mounting screws are arranged on the outer side of the sealing structure, a splicing seat structure and a connecting seat structure are respectively arranged inside the sealing structure, an assembly structure is arranged on the side of the splicing seat structure and the connecting seat structure away from each other, and a pressure connecting rod structure is arranged through the inside of the splicing seat structure and the connecting seat structure;

[0006] The splicing seat structure includes a connecting inner cylinder, the outer surface of the connecting inner cylinder is fixedly connected to a prism plate, the interior of the prism plate is fixedly connected to an elastic rod fixing seat, the interior of the elastic rod fixing seat is fixedly connected to a metal elastic rod, the end of the metal elastic rod away from the elastic rod fixing seat is fixedly connected to an inclined block, the outer surface of the inclined block is fixedly connected to a positioning piece, the side of the positioning piece close to the inclined block is fixedly connected to an inclined guide piece, the inner wall of the prism plate is provided with a biasing block groove, the lower pipe pile is plug-connected to the connecting inner cylinder, the inclined guide piece is fixedly connected to the inclined block, and the end of the inclined block away from the metal elastic rod is provided with an inclined surface. The connecting seat structure includes a splicing plate, and the splicing plate The bottom surface is fixedly connected with a sealing ring, the inner wall of the splicing disk is fixedly connected with a fitting ring, the bottom surface of the fitting ring is rotatably connected with a connecting support block, one end of the connecting support block is fixedly connected with an arc-shaped spring piece, the surface of the end of the connecting support block away from the arc-shaped spring piece is provided with a rod hole, the bottom surface of the fitting ring is provided with four block grooves, the side of the sealing ring is provided with a plurality of mounting holes, the end of the arc-shaped spring piece away from the connecting support block is hinged with the fitting ring, the elastic rod fixing seat and the block groove fit each other, the fitting ring is slidably connected to the inner wall of the prism disk, the connecting support block extends to the inner side of the biased block groove, and when the prism disk and the splicing disk begin to be spliced, the metal elastic rod connected to the elastic rod fixing seat of the connecting inner cylinder is inserted into the block groove The metal elastic rod is inserted into the through hole in the block groove at this time, and the two inclined cut blocks connected by the metal elastic rod contact the through hole through the inclined guide piece and move closer to each other to deform the metal elastic rod. After the inclined cut block passes through the through hole, the metal elastic rod connected to the inclined cut block recovers its deformation to make the two inclined cut blocks move away from each other, so that the clamping piece connected to the inclined cut block clamps the splicing disk, so that the prism disk and the splicing disk are engaged with each other through the structural cooperation of the clamping piece connected to the inclined cut block and the splicing disk, thereby realizing the rapid splicing of the prism disk and the splicing disk structure, playing the role of connecting and positioning the prism disk and the splicing disk. At the same time, when the prism disk and the splicing disk are docked, the connecting support block connected to the splicing disk is deflected around the connection point of the splicing disk, so that the connecting support block After the block is deflected, it drives the connected arc-shaped spring pieces to bend and deform, so that the deflected connecting support block can be inserted into the inner wall of the connecting edge disk. At this time, the connecting support block contacts the inner wall of the connecting edge disk, and the arc-shaped spring pieces connected to the connecting support block release a part of the elastic force, so that the connecting support block can fit tightly against the inner wall of the connecting edge disk. As the connecting edge disk moves, the connecting support block is pushed close to the splicing disk, and the inner wall of the connecting edge disk in the connecting support block groove slides into the deflected block groove. At this time, the arc-shaped spring pieces connected to the connecting support block completely release the elastic force to push the connecting support block to deflect, so that the through rod hole at one end of the deflected connecting support block is aligned with the hole position on the connecting edge disk. At the same time, after the through rod hole on the connecting support block is inserted into the pressure connecting rod structure, it can prevent the connection between the connecting edge disk and the splicing disk from twisting, thereby increasing the supporting force when the connecting edge disk and the splicing disk are twisted.

[0007] According to the above technical solution, the pressure-applying connecting rod structure includes a pressure rod, both ends of the pressure rod are slidably connected with expansion cylinders, one end of the expansion cylinder away from the pressure rod is fixedly connected with four expansion strips, and the side of the expansion strip is fixedly connected with an expansion guide sheet, and the expansion cylinders are respectively placed in the rod insertion grooves provided in the lower pipe pile and the upper pipe pile, and the pressure rod is allowed to pass through the mounting hole and the rod through hole on the side of the sealing ring, so that the pressure rod is inserted into the expansion cylinder in the rod insertion groove, and when the upper pipe pile located above moves downward and approaches the top of the lower pipe pile under the action of the crane, the overall gravity of the upper pipe pile is used to squeeze the pressure rod, so that the lower pipe pile and the upper pipe pile are close to each other, and the expansion cylinders in the lower pipe pile and the upper pipe pile are squeezed by the pressure rod at the same time. The compression rod is pressed to squeeze the expansion guide connected to the expansion strip, so that the expansion guide squeezes the expansion strip to fit the inner wall of the rod insertion groove, and the expansion guide is in contact with the compression rod to increase the friction. The compression rod is fixed and connected by the gravity of the upper connecting pipe pile to squeeze the expansion strip of the expansion tube. This allows the lower connecting pipe pile to be quickly positioned when connected to the upper connecting pipe pile, which is convenient for docking installation. At the same time, the compression rod passes through the mounting hole and the rod through hole to position the lower connecting pipe pile and the upper connecting pipe pile. At the same time, the compression rod squeezes the expansion tube to apply pressure to the upper connecting pipe pile and the lower connecting pipe pile, so that the lower connecting pipe pile or the upper connecting pipe pile is away from the trapezoidal block, so that the trapezoidal block contacts the connecting block groove and increases the friction, thereby reducing the contact gap between the trapezoidal block and the connecting block groove.

[0008] According to the above technical solution, the assembly structure includes a connecting tube block, which is provided with two groups of connecting tube blocks, and the two groups of connecting tube blocks are respectively fixedly connected to the sides of the prism plate and the splicing plate, the connecting tube block is fixedly connected to the telescopic tube on the side away from the prism plate or the splicing plate, both ends of the telescopic tube are slidably connected with short rods, and each end of the short rod away from the telescopic tube is fixedly connected with a trapezoidal clamping block, the lower pipe pile and the upper pipe pile are provided with a connecting block groove and a rod insertion groove on the opposite sides, the connecting block groove is clamped and connected with the trapezoidal clamping block, a spring sheet is provided inside the telescopic tube, and the two ends of the spring sheet are respectively fixedly connected to the telescopic tube and the short rod, Before connecting the connecting pipe pile and the upper connecting pipe pile, it is necessary to align the connecting tube block connected by the prism plate and the splicing plate with the connecting block grooves opened on the sides of the lower connecting pipe pile and the upper connecting pipe pile, so that the telescopic tube connected to the connecting tube block drives the short rod and the trapezoidal clamping block to approach the connecting block groove, and the inclined surface of the trapezoidal clamping block contacts the notch of the connecting block groove, so that the trapezoidal clamping block is compressed to push the connected short rod toward the telescopic tube to shrink, and squeeze the spring sheet in the telescopic tube to be compressed. When the trapezoidal clamping block is completely immersed in the connecting block groove, the spring sheet inside the telescopic tube releases the elastic force to push the short rod to extend outward from the telescopic tube, and the short rod pushes the trapezoidal clamping block to be stuck in the connecting block groove, so that the lower connecting pipe pile is engaged with the connecting block groove through the structure of the trapezoidal clamping block.

[0009] According to the above technical scheme, the sealing structure includes a connecting sealing plate, a connecting groove is provided on the side surface of one end of the connecting sealing plate, a splicing hook plate is plugged and connected inside the connecting groove, and the splicing hook plate is fixedly connected to the splicing sealing plate at one end away from the connecting sealing plate, and connecting holes are provided on the side surfaces of the connecting sealing plate and the splicing sealing plate at one end away from the splicing hook plate, and the connecting sealing plate and the splicing sealing plate are provided with matching cut surfaces on the opposite sides, and two matching edge grooves are provided on the side surfaces of the matching cut surfaces, and a through connecting hole is provided on the side surface of the prism plate, and the two matching edge grooves are respectively matched with the edges of the prism plate and the splicing plate, and the matching cut surfaces are matched with the outer surface of the prism plate, and the through connecting hole is threadedly connected with the mounting screw, so that the connecting sealing plate and the splicing sealing plate are buckled on both sides of the prism plate and the sealing ring respectively. , the splicing sealing plate is inserted into the connecting groove through the splicing hook plate, and then the fitting edge grooves on the sides of the connecting sealing plate and the splicing sealing plate are respectively fitted closely to the edges of the sealing ring and the prism plate, and then the connecting holes on the connecting sealing plate and the splicing sealing plate are aligned with the through connecting holes, and the fitting cut surfaces on the sides of the connecting sealing plate and the splicing sealing plate are completely fitted, and then the mounting screws are passed through the connecting holes and threadedly connected with the through connecting holes, so that the connecting sealing plate and the splicing sealing plate can fit with the prism plate and the sealing ring through the fitting edge grooves on the sides, thereby fixing the prism plate and the sealing ring and preventing the prism plate and the sealing ring from detaching and affecting the connection of the compression rod, and by making the connecting sealing plate and the splicing sealing plate fit the outer wall of the lower connecting pipe pile and the upper connecting pipe pile as much as possible, after the tubular is driven into the ground, the structure of the prism plate and the sealing ring is protected by the connecting sealing plate and the splicing sealing plate.

[0010] The present invention provides a prestressed concrete pipe pile connection device, which has the following beneficial effects:

[0011] The present invention prevents the prism plate and the sealing ring from being separated and affecting the connection of the compression rod by providing a connecting sealing plate, a splicing sealing plate, a connecting hole, a splicing hook plate, a fitting edge groove, a fitting cut surface, a connecting notch, and a through-hole. The connecting sealing plate and the splicing sealing plate are fitted to the outer wall of the lower pipe pile and the upper pipe pile as much as possible. After the pipe is driven into the ground, the connecting sealing plate and the splicing sealing plate protect the structure of the prism plate and the sealing ring part. At the same time, the connecting sealing plate and the splicing sealing plate reduce the resistance of penetrating into the ground.

[0012] The present invention is provided with a connecting inner tube, a prism plate, an elastic rod fixing seat, a metal elastic rod, a positioning piece, an inclined guide piece, an inclined cut block, a biased block groove, a splicing plate, a sealing ring, a connecting support block, an arc-shaped elastic piece, a building block groove, a mounting hole, a through-rod hole, and a fitting ring. The inner wall of the prism plate in the connecting support block groove slides into the biased block groove. At this time, the arc-shaped elastic piece connected to the connecting support block completely releases the elastic force to push the connecting support block to deflect, so that the through-rod hole at one end of the deflected connecting support block is aligned with the hole position on the connecting prism plate. At the same time, after the through-rod hole on the connecting support block is inserted into the pressure connecting rod structure, the twisting of the connection between the prism plate and the splicing plate can be prevented, and the supporting force when the prism plate and the splicing plate are twisted can be increased, thereby avoiding the parts from being twisted and deformed under the action of the connected lower pipe pile and the upper pipe pile, thereby improving the stability of the connecting structure.

[0013] The present invention is provided with a compression rod, an expansion cylinder, an expansion strip, and an expansion guide. The compression rod is subjected to the gravity of the upper pipe pile to squeeze the expansion strip of the expansion cylinder to deform and realize fixation and connection. Therefore, the lower pipe pile is quickly positioned when connected with the upper pipe pile, and the docking installation is convenient. At the same time, the compression rod passes through the installation hole and the rod penetration hole to position the lower pipe pile and the upper pipe pile. At the same time, the compression rod squeezes the expansion cylinder to apply pressure to the upper pipe pile and the lower pipe pile, so that the lower pipe pile or the upper pipe pile is away from the trapezoidal clamping block, so that the trapezoidal clamping block contacts with the connecting block groove and increases the friction force, thereby reducing the contact gap between the trapezoidal clamping block and the connecting block groove, and preventing the displacement when connecting the lower pipe pile and the upper pipe pile, thereby affecting the overall connection.

[0014] The present invention is provided with a connecting tube block, a telescopic tube, a short rod, a trapezoidal clamping block, a connecting block groove, and a rod insertion groove. The trapezoidal clamping block is completely immersed in the connecting block groove. The spring sheet inside the telescopic tube releases elastic force to push the short rod to extend outward from the telescopic tube. The short rod pushes the trapezoidal clamping block to be stuck in the connecting block groove, so that the lower connecting pipe pile can be engaged with the connecting block groove through the structure of the trapezoidal clamping block, thereby realizing the rapid connection of the lower connecting pipe pile with the connecting inner tube and the prism plate, thereby improving the connection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure inside the integral sealing structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the component position distribution structure of the present invention as a whole;

[0018] Figure 4 It is a schematic diagram of the connection structure of the overall assembly structure and the splicing seat structure of the present invention;

[0019] Figure 5 For the present invention as a whole Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 6 It is a structural schematic diagram of the overall connecting seat structure of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the integral pressure connecting rod structure of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the overall sealing structure of the present invention;

[0023] Fig. 9 It is a structural schematic diagram of the overall connection notch position of the present invention.

[0024] In the figure: 1. Lower pipe pile; 2. Sealing structure; 21. Connecting sealing plate; 22. Splicing sealing plate; 23. Connecting hole; 24. Splicing hook plate; 25. Fitting edge groove; 26. Fitting cut surface; 27. Connecting notch; 28. Through hole; 3. Upper pipe pile; 4. Mounting screw; 5. Splicing seat structure; 51. Connecting inner tube; 52. Ridge plate; 53. Spring rod fixing seat; 54. Metal elastic rod; 55. Positioning piece; 56. Inclined guide piece; 57. Inclined cut piece; 58 , bias block groove; 6, connecting seat structure; 61, splicing plate; 62, sealing ring; 63, connecting support block; 64, arc-shaped spring piece; 65, block groove; 66, mounting hole; 67, rod hole; 68, fitting ring; 7, pressure connecting rod structure; 71, pressure rod; 72, expansion cylinder; 73, expansion strip; 74, expansion guide; 8, assembly structure; 81, connecting tube block; 82, telescopic cylinder; 83, short rod; 84, trapezoidal block; 85, connecting block groove; 86, rod insertion groove. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figure 1-9 The embodiment of the present invention is: a prestressed concrete pipe pile connection device, comprising a lower pipe pile 1, a sealing structure 2 is arranged above the lower pipe pile 1, an upper pipe pile 3 is arranged above the sealing structure 2, a mounting screw 4 is arranged on the outer side of the sealing structure 2, a splicing seat structure 5 and a connecting seat structure 6 are respectively arranged inside the sealing structure 2, an assembly structure 8 is arranged on the side of the splicing seat structure 5 and the connecting seat structure 6 away from each other, and a pressure connecting rod structure 7 is penetrated inside the splicing seat structure 5 and the connecting seat structure 6;

[0027] The splicing seat structure 5 includes a connecting inner cylinder 51, the outer surface of the connecting inner cylinder 51 is fixedly connected to a prism plate 52, the interior of the prism plate 52 is fixedly connected to a spring rod fixing seat 53, the interior of the spring rod fixing seat 53 is fixedly connected to a metal elastic rod 54, the end of the metal elastic rod 54 away from the spring rod fixing seat 53 is fixedly connected to an inclined cut block 57, the outer surface of the inclined cut block 57 is fixedly connected to a positioning piece 55, and the side of the positioning piece 55 close to the inclined cut block 57 is fixedly connected to an inclined guide piece 56, and the inner wall of the prism plate 52 is provided with a biasing The block groove 58, the lower pipe pile 1 is plug-connected with the connecting inner tube 51, the inclined guide piece 56 is fixedly connected with the inclined cut block 57, and the end of the inclined cut block 57 away from the metal elastic rod 54 is provided with an inclined surface, and the connecting seat structure 6 includes a splicing plate 61, the bottom surface of the splicing plate 61 is fixedly connected with a sealing ring 62, and the inner wall of the splicing plate 61 is fixedly connected with a fitting ring 68, and the bottom surface of the fitting ring 68 is rotatably connected with a connecting support block 63, and one end of the connecting support block 63 is fixedly connected with an arc-shaped spring piece 64, and the connecting support block 63 is away from the arc A rod hole 67 is provided on one end surface of the arc-shaped spring piece 64, four block grooves 65 are provided on the bottom surface of the fitting ring 68, and a plurality of mounting holes 66 are provided on the side of the sealing ring 62. The end of the arc-shaped spring piece 64 away from the connecting support block 63 is hinged to the fitting ring 68, the spring rod fixing seat 53 and the block groove 65 fit each other, the fitting ring 68 is slidably connected to the inner wall of the prism plate 52, the connecting support block 63 extends to the inner side of the biasing block groove 58, and the inner wall of the prism plate 52 in the groove of the connecting support block 63 slides into the biasing block groove 58. At this time, the connecting support block 63 The arc-shaped spring pieces 64 connected to the connecting block 63 completely release the elastic force to push the connecting support block 63 to deflect, so that the through-rod hole 67 at one end of the connecting support block 63 after deflection is aligned with the hole position on the connecting edge plate 52. At the same time, after the through-rod hole 67 on the connecting support block 63 is inserted into the pressure connecting rod structure 7, the connection between the edge plate 52 and the splicing plate 61 can be prevented from twisting, and the supporting force when the edge plate 52 and the splicing plate 61 are twisted can be increased, thereby avoiding the parts from being twisted and deformed under the action of the connected lower connecting pipe pile 1 and the upper connecting pipe pile 3, thereby improving the stability of the connecting structure.

[0028] When the locking cam 72 is in the locked state, the locking cam 73 is in the locked state, and the locking cam 73 is in the locked state, so that the locking cam 73 can be locked easily.

[0029] The assembly structure 8 includes a connecting tube block 81, which is provided with two groups, and the two groups of connecting tube blocks 81 are respectively fixedly connected to the sides of the prism plate 52 and the splicing plate 61. The side of the connecting tube block 81 away from the prism plate 52 or the splicing plate 61 is fixedly connected with a telescopic tube 82, and both ends of the telescopic tube 82 are slidably connected with short rods 83, and each end of the short rod 83 away from the telescopic tube 82 is fixedly connected with a trapezoidal block 84, and the opposite sides of the lower pipe pile 1 and the upper pipe pile 3 are provided with a connecting block groove 85 and a rod insertion groove 86, and the connecting block groove 85 is clamped with the trapezoidal block 84. The telescopic cylinder 82 is connected with a spring sheet inside, and the two ends of the spring sheet are fixedly connected to the telescopic cylinder 82 and the short rod 83 respectively. When the trapezoidal block 84 is completely immersed in the connecting block groove 85, the spring sheet inside the telescopic cylinder 82 releases the elastic force to push the short rod 83 to extend outward from the telescopic cylinder 82, and the short rod 83 pushes the trapezoidal block 84 to be stuck in the connecting block groove 85, so that the lower connecting pipe pile 1 can be quickly connected with the connecting inner cylinder 51 and the prism plate 52 through the structure of the trapezoidal block 84 and the connecting block groove 85, thereby improving the connection efficiency.

[0030] The sealing structure 2 includes a connecting sealing plate 21, a connecting notch 27 is provided on the side of one end of the connecting sealing plate 21, a splicing hook plate 24 is plugged in the connecting notch 27, and a splicing sealing plate 22 is fixedly connected to the end of the splicing hook plate 24 away from the connecting sealing plate 21, and a connecting hole 23 is provided on the side of the connecting sealing plate 21 and the end of the splicing sealing plate 22 away from the splicing hook plate 24, and a matching cut surface 26 is provided on the opposite side of the connecting sealing plate 21 and the splicing sealing plate 22, and two matching side grooves 25 are provided on the side of the matching cut surface 26, and a through hole 28 is provided on the side of the prism plate 52, and the two matching side grooves 25 are respectively matched with the edges of the prism plate 52 and the splicing plate 61, and the matching cut surface 26 and the outer surface of the prism plate 52 are matched with each other, and the through hole 28 is provided. The through-hole 28 is threadedly connected with the mounting screw 4. The mounting screw 4 is threadedly connected through the connecting hole 23 and the through-hole 28, so that the connecting sealing plate 21 and the splicing sealing plate 22 can be matched with the prism plate 52 and the sealing ring 62 through the side fitting groove 25, thereby fixing the prism plate 52 and the sealing ring 62 to prevent the prism plate 52 and the sealing ring 62 from detaching and affecting the connection of the compression rod 71. The connecting sealing plate 21 and the splicing sealing plate 22 are as close as possible to the outer wall of the lower connecting pipe pile 1 and the upper connecting pipe pile 3. After the tubular is driven into the ground, the connecting sealing plate 21 and the splicing sealing plate 22 are used to protect the structure of the prism plate 52 and the sealing ring 62. At the same time, the connecting sealing plate 21 and the splicing sealing plate 22 are used to reduce the resistance to going deep into the ground.

[0031] Working principle: First, before connecting the lower pipe pile 1 and the upper pipe pile 3, it is necessary to align the connecting tube block 81 connected by the prism plate 52 and the splicing plate 61 with the connecting block groove 85 opened on the side of the lower pipe pile 1 and the upper pipe pile 3, so that the telescopic tube 82 connected to the connecting tube block 81 drives the short rod 83 and the trapezoidal block 84 to approach the connecting block groove 85, and the inclined surface of the trapezoidal block 84 contacts the notch of the connecting block groove 85, so that the trapezoidal block 84 is pressed to push the connected short rod 83 to retract the telescopic tube 82. The spring sheet in the telescopic cylinder 82 is compressed and squeezed. When the trapezoidal block 84 is completely immersed in the connecting block groove 85, the spring sheet inside the telescopic cylinder 82 releases elastic force to push the short rod 83 to extend outward from the telescopic cylinder 82. The short rod 83 pushes the trapezoidal block 84 to be stuck in the connecting block groove 85, so that the lower pipe pile 1 is engaged with the connecting block groove 85 through the structure of the trapezoidal block 84, so as to realize the quick connection between the lower pipe pile 1 and the connecting inner cylinder 51 and the prism plate 52, thereby improving the connection efficiency.

[0032] When the prism plate 52 and the splicing plate 61 begin to be spliced, the metal elastic rod 54 connected to the inner tube 51 through the elastic rod fixing seat 53 is inserted into the block groove 65. At this time, the metal elastic rod 54 is inserted into the through hole in the block groove 65. The two inclined cut blocks 57 connected to the metal elastic rod 54 contact the through hole through the inclined guide piece 56 and approach each other to deform the metal elastic rod 54. After the inclined cut block 57 passes through the through hole, the metal elastic rod 54 connected to the inclined cut block 57 recovers its deformation so that the two inclined cut blocks 57 are mutually The prism plate 52 and the splicing plate 61 are fastened to each other through the structure of the prism plate 52 and the splicing plate 61, thereby achieving the rapid splicing between the prism plate 52 and the splicing plate 61, and playing the role of connecting and positioning the prism plate 52 and the splicing plate 61. At the same time, when the prism plate 52 and the splicing plate 61 are docked, the connecting support block 63 connected to the splicing plate 61 is deflected around the connection of the splicing plate 61, so that the connection After the connecting support block 63 is deflected, the connected arc spring piece 64 is bent and deformed, so that the deflected connecting support block 63 is inserted into the inner wall of the connecting edge plate 52. At this time, the connecting support block 63 contacts the inner wall of the connecting edge plate 52, and the arc spring piece 64 connected to the connecting support block 63 releases a part of the elastic force, so that the connecting support block 63 is closely attached to the inner wall of the connecting edge plate 52. As the edge plate 52 moves, the connecting support block 63 is pushed close to the splicing plate 61, and the inner wall of the edge plate 52 in the groove of the connecting support block 63 slides into the deflection block groove 58. At this time, the connecting support block 63 is connected The arc-shaped spring piece 64 completely releases the elastic force to push the connecting support block 63 to deflect, so that the through-rod hole 67 at one end of the deflected connecting support block 63 is aligned with the hole position on the connecting edge plate 52. At the same time, after the through-rod hole 67 on the connecting support block 63 is inserted into the pressure connecting rod structure 7, it can prevent the connection between the edge plate 52 and the splicing plate 61 from twisting, increase the supporting force when the edge plate 52 and the splicing plate 61 are twisted, thereby avoiding the parts from being twisted and deformed under the action of the connected lower pipe pile 1 and the upper pipe pile 3, and improving the stability of the connection structure;

[0033] The expansion tube 72 is respectively placed in the rod insertion groove 86 opened in the lower pipe pile 1 and the upper pipe pile 3, and the pressure rod 71 is passed through the mounting hole 66 and the rod penetration hole 67 on the side of the sealing ring 62, so that the pressure rod 71 is inserted into the expansion tube 72 of the rod insertion groove 86. When the upper pipe pile 3 located above moves downward to the top of the lower pipe pile 1 under the action of the crane, the overall gravity of the upper pipe pile 3 is used to squeeze the pressure rod 71, so that the lower pipe pile 1 and the upper pipe pile 3 are close to each other, and the expansion tubes 72 in the lower pipe pile 1 and the upper pipe pile 3 are squeezed by the pressure rod 71 at the same time, so that the pressure rod 71 squeezes the expansion guide piece 74 connected to the expansion strip 73, so that the expansion guide piece 74 squeezes the expansion strip 73 to fit the inner wall of the rod insertion groove 86, and the expansion guide piece 74 and the pressure rod 71 are pressed. The indirect contact increases the friction force, and the compression rod 71 is used to deform the expansion strip 73 of the expansion tube 72 by the gravity of the upper pipe pile 3 to achieve fixation and connection, so that the lower pipe pile 1 and the upper pipe pile 3 can be quickly positioned when connected, which is convenient for docking installation. At the same time, the compression rod 71 passes through the installation hole 66 and the rod hole 67 to position the lower pipe pile 1 and the upper pipe pile 3. At the same time, the compression rod 71 squeezes the expansion tube 72 to press the upper pipe pile 3 and the lower pipe pile 1, so that the lower pipe pile 1 or the upper pipe pile 3 is away from the trapezoidal block 84, so that the trapezoidal block 84 contacts with the connecting block groove 85 and increases the friction force, thereby reducing the contact gap between the trapezoidal block 84 and the connecting block groove 85, and preventing the lower pipe pile 1 and the upper pipe pile 3 from offset when connecting, which affects the overall connection;

[0034] The connecting sealing plate 21 and the splicing sealing plate 22 are buckled on both sides of the prism plate 52 and the sealing ring 62 respectively, and the splicing sealing plate 22 is inserted into the connecting notch 27 through the splicing hook plate 24. Then, the fitting edge grooves 25 on the sides of the connecting sealing plate 21 and the splicing sealing plate 22 are respectively fitted closely to the edges of the sealing ring 62 and the prism plate 52, and then the connecting holes 23 on the connecting sealing plate 21 and the splicing sealing plate 22 are aligned with the through-hole 28, and the fitting cut surfaces 26 on the sides of the connecting sealing plate 21 and the splicing sealing plate 22 are completely fitted, and then the mounting screws 4 are passed through the connecting holes 23 and threadedly connected to the through-hole 28, so that the connecting The connecting sealing plate 21 and the splicing sealing plate 22 are fitted with the prism plate 52 and the sealing ring 62 through the side fitting grooves 25, thereby fixing the prism plate 52 and the sealing ring 62 to prevent the prism plate 52 and the sealing ring 62 from detaching and affecting the connection of the compression rod 71. By connecting the sealing plate 21 and the splicing sealing plate 22 to fit the outer wall of the lower connecting pipe pile 1 and the upper connecting pipe pile 3 as much as possible, after the pipe is driven into the ground, the connecting sealing plate 21 and the splicing sealing plate 22 are used to protect the structure of the prism plate 52 and the sealing ring 62. At the same time, the connecting sealing plate 21 and the splicing sealing plate 22 reduce the resistance to going deep into the ground.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A prestressed concrete pipe pile connection device, comprising a lower pipe pile (1), characterized in that: A sealing structure (2) is arranged above the lower connecting pipe pile (1), an upper connecting pipe pile (3) is arranged above the sealing structure (2), a mounting screw (4) is arranged on the outer side of the sealing structure (2), a splicing seat structure (5) and a connecting seat structure (6) are arranged inside the sealing structure (2), an assembly structure (8) is arranged on the side of the splicing seat structure (5) and the connecting seat structure (6) away from each other, and a pressure connecting rod structure (7) is arranged inside the splicing seat structure (5) and the connecting seat structure (6); The splicing seat structure (5) comprises a connecting inner cylinder (51), the outer surface of the connecting inner cylinder (51) is fixedly connected to a prism plate (52), the interior of the prism plate (52) is fixedly connected to an elastic rod fixing seat (53), the interior of the elastic rod fixing seat (53) is fixedly connected to a metal elastic rod (54), the end of the metal elastic rod (54) away from the elastic rod fixing seat (53) is fixedly connected to an inclined cut block (57), the outer surface of the inclined cut block (57) is fixedly connected to a positioning piece (55), the side of the positioning piece (55) close to the inclined cut block (57) is fixedly connected to an inclined guide piece (56), and the inner wall of the prism plate (52) is provided with a biasing block groove (58); The lower pipe pile (1) is plug-connected to the connecting inner cylinder (51), the inclined guide piece (56) is fixedly connected to the inclined cut block (57), and an inclined surface is formed at one end of the inclined cut block (57) away from the metal elastic rod (54); The connection seat structure (6) comprises a splicing plate (61), the bottom surface of the splicing plate (61) is fixedly connected to a sealing ring (62), the inner wall of the splicing plate (61) is fixedly connected to a fitting ring (68), the bottom surface of the fitting ring (68) is rotatably connected to a connecting support block (63), one end of the connecting support block (63) is fixedly connected to an arc-shaped spring sheet (64), a rod-through hole (67) is provided on the surface of one end of the connecting support block (63) away from the arc-shaped spring sheet (64), four block grooves (65) are provided on the bottom surface of the fitting ring (68), and a plurality of mounting holes (66) are provided on the side surface of the sealing ring (62); One end of the arc-shaped spring piece (64) away from the connecting support block (63) is hinged to a fitting ring (68), the spring rod fixing seat (53) and the block groove (65) fit each other, the fitting ring (68) is slidably connected to the inner wall of the prism plate (52), and the connecting support block (63) extends to the inner side of the offset block groove (58); The pressure connecting rod structure (7) comprises a pressure rod (71), both ends of the pressure rod (71) are slidably connected to expansion cylinders (72), one end of the expansion cylinder (72) away from the pressure rod (71) is fixedly connected to four expansion strips (73), and the side of the expansion strip (73) is fixedly connected to an expansion guide piece (74); The assembly structure (8) comprises a connecting tube block (81), wherein two groups of the connecting tube blocks (81) are provided, and the two groups of connecting tube blocks (81) are respectively fixedly connected to the side of the prism plate (52) and the splicing plate (61); a telescopic tube (82) is fixedly connected to the side of the connecting tube block (81) away from the prism plate (52) or the splicing plate (61); short rods (83) are slidably connected to both ends of the telescopic tube (82); one end of each short rod (83) away from the telescopic tube (82) is fixedly connected to a trapezoidal clamping block (84); a connecting block groove (85) and a rod insertion groove (86) are provided on opposite sides of the lower pipe pile (1) and the upper pipe pile (3); the connecting block groove (85) is clamped and connected to the trapezoidal clamping block (84); a spring sheet is provided inside the telescopic tube (82), and the two ends of the spring sheet are respectively fixedly connected to the telescopic tube (82) and the short rod (83).

2. A prestressed concrete pipe pile connection device according to claim 1, characterized in that: The sealing structure (2) comprises a connecting sealing plate (21), a connecting notch (27) is provided on the side surface of one end of the connecting sealing plate (21), a splicing hook plate (24) is plugged and connected inside the connecting notch (27), an end of the splicing hook plate (24) away from the connecting sealing plate (21) is fixedly connected to the splicing sealing plate (22), connecting holes (23) are provided on the side surfaces of the connecting sealing plate (21) and the splicing sealing plate (22) away from the splicing hook plate (24), a fitting cut surface (26) is provided on the side surface of the connecting sealing plate (21) and the splicing sealing plate (22) opposite to each other, two fitting edge grooves (25) are provided on the side surface of the fitting cut surface (26), and a through-hole (28) is provided on the side surface of the prism plate (52).

3. A prestressed concrete pipe pile connection device according to claim 2, characterized in that: The two engaging edge grooves (25) respectively engage with the edges of the prism plate (52) and the splicing plate (61), the engaging cut surface (26) engages with the outer surface of the prism plate (52), and the through hole (28) is threadedly connected to the mounting screw (4).

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