Rectangular corrugated steel rib and concrete pouring positioning assembly and pipe jacking integral forming equipment

Abstract

The invention belongs to the technical field of pipeline construction, particularly relates to a rectangular corrugated steel skeleton and concrete pouring positioning assembly and pipe jacking integral forming equipment, and solves the problems that a corrugated steel skeleton is inaccurate in positioning, an inner mold is inconvenient to disassemble and assemble, the skeleton floats upwards and the sealing performance is poor. In the assembly, an outer mold is composed of two semicircular plates, and a semicircular ring is provided with an inserting part which can be inserted into a trough of the skeleton for positioning; the semicircular rings are spliced into a rotating ring, the inserting part is driven to operate through a hydraulic cylinder and the like, the jacking pipe integral forming equipment is adopted, a frame body II is arranged on a bottom plate, and a semicircular plate is rotationally connected with a fixing shaft and fixed through bolts; the inner mold is formed by splicing mold plates, and the driving part drives the mold plates to move; the sealing part controls the top cover to seal the outer mold; the concrete columns are arranged on the top cover, the framework can be prevented from floating upwards, the positioning precision is improved, internal mold operation is facilitated, the sealing performance is enhanced, and structural stability is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of pipeline construction technology, and in particular to a rectangular corrugated steel frame and concrete pouring positioning assembly and an integral pipe jacking forming equipment. Background Technology

[0002] Pipe jacking technology, as a trenchless construction method, is widely used in urban underground pipeline laying and underground passage construction. Its core advantage lies in eliminating the need for large-scale ground excavation, effectively reducing the impact on surface traffic, surrounding buildings, and underground pipelines, and minimizing environmental disturbance during construction. During the pipe jacking structure forming process, to enhance the structural strength, deformation resistance, and durability of the pipe, a rectangular corrugated steel frame is typically installed during concrete pouring. The synergistic effect of the corrugated steel frame and concrete ensures the overall mechanical properties of the formed pipe.

[0003] However, in existing pipe jacking construction, there are many drawbacks in the positioning process of the rectangular corrugated steel frame and concrete pouring: 1. Traditional positioning methods often involve manually erecting supports or using simple clamps for fixing. Due to the inherent flexibility of the corrugated steel frame and the limited internal space of the jacking pipe forming mold, manual positioning is difficult and prone to deviations. This results in uneven spacing between the corrugated steel frame and the inner and outer molds, affecting the structural stability after concrete pouring. In severe cases, localized stress concentration may occur, reducing the service life of the jacking pipe. 2. Different specifications of jacking pipes correspond to different sizes of corrugated steel frames, and the spacing and size of their troughs also vary. Existing positioning devices are mostly fixed structures and cannot be flexibly adjusted according to the specifications of the corrugated steel frame. Customized positioning components are required for different working conditions, which increases construction costs and reduces construction efficiency. At the same time, the splicing and fixing method of the positioning components and the mold is cumbersome, and the disassembly and assembly process is time-consuming and labor-intensive, which is not conducive to achieving high efficiency in the construction process.

[0004] 3. If the joints of the mold are not properly sealed, concrete leakage is likely to occur, which will not only waste materials, but also affect the appearance quality and structural density of the jacking pipe after it is formed. In addition, buoyancy will be generated when the concrete is poured. If effective anti-buoyancy measures are not taken, the corrugated steel frame is prone to vertical displacement under the action of buoyancy, which will cause its position inside the jacking pipe to shift, destroy the rationality of the structural design and affect the load-bearing capacity of the jacking pipe.

[0005] 4. The splicing and dismantling of the inner mold is not convenient enough. Most existing inner molds are made of integral structure or splicing of multiple scattered templates. The integral inner mold is difficult to assemble and disassemble in a narrow space, while the splicing of scattered templates has problems such as low positioning accuracy and low splicing efficiency. In addition, interference between templates occurs frequently, which further reduces construction efficiency. At the same time, the stability and synchronization of the inner mold drive mechanism are poor, which can easily cause jamming or displacement during template movement, affecting the splicing quality of the inner mold. Summary of the Invention

[0006] The purpose of this invention is to solve the shortcomings of existing corrugated steel skeletons, such as inaccurate positioning, easy floating of corrugated steel skeletons, and insufficient convenience of splicing and dismantling of inner molds, and to propose a rectangular corrugated steel skeleton and concrete pouring positioning component and an integral forming equipment for jacking pipe.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A rectangular corrugated steel frame and concrete pouring positioning assembly, including: The outer mold is formed by the joining of two semi-circular plates; Multiple semicircular rings are arranged along the axial direction of the outer mold, and each semicircular ring is slidably fitted onto the outer peripheral wall of the outer mold. Two semicircular rings at the same height are joined to form a rotating ring; and A plug-in portion is provided on the semi-circular ring; The insertion part includes a top plate, a connecting rod, a pin, and a fixing plate. One end of the connecting rod is hinged to the semicircular ring, and the other end of the connecting rod is hinged to the fixing plate through the pin. The fixing plate is fixedly connected to the top plate, and the top plate is slidably inserted through the semicircular plate. When the semicircular ring slides along the circumference of the outer mold, the top plate is driven to move radially inward and insert into the trough of the corrugated steel skeleton placed in the outer mold through the transmission of the connecting rod and the pin, thereby realizing the radial positioning of the corrugated steel skeleton.

[0008] In one possible design, each of the semicircular rings has a ring head fixedly provided at one end, and when two semicircular rings are spliced ​​together, the two ring heads overlap vertically. It also includes a hydraulic drive mechanism, which includes a hydraulic cylinder and a pin. The cylinder body of the hydraulic cylinder is hinged to one of the semicircular plates. The piston rod end of the hydraulic cylinder is connected to an annular sleeve. The pin is slidably inserted through the annular sleeve and is used to simultaneously insert into two overlapping ring heads to lock the rotating ring. The hydraulic cylinder drives the pin to move linearly, which in turn causes the locked rotating ring to slide circumferentially along the outer mold, thereby driving the insertion part to run.

[0009] In one possible design, the mating edges of the two semicircular plates are provided with multiple connecting lugs, and the corresponding connecting lugs are fixed together by bolts.

[0010] The integral pipe jacking equipment, including the aforementioned rectangular corrugated steel frame and concrete pouring positioning components, also includes: Base plate; Frame II is fixed to the base plate. Frame II is provided with a fixed shaft, and both semicircular plates are rotatably sleeved on the fixed shaft. A top cover, used to close the top of the outer mold; The inner mold is set on the base plate and located inside the outer mold, and the corrugated steel skeleton is placed in the annular cavity formed between the inner mold and the outer mold.

[0011] In one possible design, the inner mold is composed of multiple templates I and multiple templates II spliced ​​together, and the ends of the templates I are provided with sealing rubber strips II; It also includes a drive unit, which is used to drive the template I and the template II to move in order to complete the assembly and disassembly of the inner mold.

[0012] In one possible design, the drive unit includes: Threaded rod II is vertically fixed to the base plate; At least one lower moving block and at least one upper moving block are both threadedly fitted onto the threaded rod II; Multiple first rotating rods, one end of which is hinged to the lower moving block, and the other end of which is hinged to the corresponding template I; Multiple second rotating rods, one end of which is hinged to the upper moving block, and the other end of which is hinged to the corresponding template II; By controlling the lower moving block and the upper moving block to move up and down along the threaded rod II in sequence, the template I and the template II can be driven to perform mold closing or mold opening movements in sequence, thereby avoiding motion interference between the template I and the template II during assembly or disassembly.

[0013] In one possible design, a closing part for driving the top cover is also included. The closing part includes a frame I, a threaded rod I, and a nut block. The frame I is fixed to the base plate, the threaded rod I is rotatably supported inside the frame I, and the nut block is threadedly engaged with the threaded rod I and slidably engaged with the frame I. One side of the top cover is rotatably connected to the nut block; The opening and closing of the top of the outer mold is achieved by rotating the threaded rod I to drive the nut block and the top cover to rise and fall as a whole.

[0014] In one possible design, a sealing ring is fixed to the bottom of the top cover, and an annular sealing groove adapted to the sealing ring is opened on the top of the outer mold.

[0015] In one possible design, one of the semicircular plates has a rubber strip I on its mating end face, and the other semicircular plate has a groove on its mating end face that presses against the rubber strip I.

[0016] In one possible design, the top cover is also provided with a vertical clamping mechanism, which includes a lead screw, a base block, a rubber sheet, and a concrete column. The lead screw is threaded to the top cover, and its bottom end is rotatably connected to the bottom block. The bottom of the bottom block is provided with a slot, and the upper part of the rubber sheet is inserted into the slot in an interference fit manner. The concrete column is fixed to the bottom of the rubber sheet. After the top cover closes the outer mold, tightening the screw can drive the concrete column to press down and press against the top of the corrugated steel frame, so as to provide vertical restraint during concrete pouring and prevent the corrugated steel frame from floating. After the concrete solidifies, the concrete column and the concrete become one. When the top cover is lifted, the rubber sheet can be disengaged from the slot, thereby realizing the automatic separation of the vertical pressing mechanism from the top cover.

[0017] Beneficial effects: In this invention, by setting up an insertion part composed of a top plate, connecting rod, pin, fixing plate, semi-circular ring and hydraulic cylinder, the precise positioning of the corrugated steel frame is achieved. The hydraulic cylinder drives the semi-circular ring to move, and through the transmission action of the connecting rod and pin, the top plate is precisely inserted into the trough of the corrugated steel frame. Multiple top plates are evenly distributed along the circumference of the corrugated steel frame, which can generate a uniform positioning force on the corrugated steel frame and effectively avoid circumferential displacement of the corrugated steel frame. At the same time, the concrete column at the bottom of the top cover generates a vertical compressive force on the top of the corrugated steel frame, which balances the buoyancy generated during concrete pouring and prevents the corrugated steel frame from floating. This ensures that the position of the corrugated steel frame inside the jacking pipe meets the design requirements and guarantees the structural stability and stress rationality of the jacking pipe after it is formed. In this invention, the semi-circular ring is driven to move by a hydraulic cylinder, and the extension length of the top plate can be flexibly adjusted according to the trough position and specifications of the corrugated steel frame. This allows the top plate to accurately adapt to corrugated steel frames of different sizes and trough distributions, eliminating the need to customize special positioning components for different specifications of jacking pipes, thus effectively improving the adaptability of the equipment. In this invention, a motor drives a gear to rotate, which in turn drives a gear ring to rotate, thereby driving a moving block to rise and fall along a threaded rod II. The rotating rod pushes or pulls the template to move, realizing the splicing and dismantling of the inner mold. The transmission structure of the drive unit is simple and reliable, enabling precise movement of the template. Furthermore, by controlling the sequential movement of the lower and upper moving blocks, template I and template II are spliced ​​and dismantled sequentially, effectively avoiding interference between the templates. Compared with traditional methods of dismantling and assembling inner molds, the dismantling and assembly operation of the inner mold in this application is more convenient, significantly shortening the dismantling and assembly time and improving construction efficiency.

[0018] In this invention, the design of the plug-in part enables precise positioning of the skeleton, effectively solving the problem of inaccurate positioning of corrugated steel skeleton in traditional pipe jacking construction. The splicing and dismantling of the inner formwork is controlled by the drive unit, which is easy to operate, avoids damage to the formwork, and reduces costs. The setting of concrete columns can prevent the skeleton from floating and ensure the structural stability after the concrete solidifies. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of the semicircular plate and semicircular ring of the rectangular corrugated steel frame and concrete pouring positioning component provided by the present invention. Figure 2 A three-dimensional structural diagram of the semi-circular ring and corrugated steel skeleton of the rectangular corrugated steel frame and concrete pouring positioning component provided by the present invention. Figure 3 A three-dimensional structural diagram of the semicircular ring, top plate, and hydraulic cylinder of the rectangular corrugated steel frame and concrete pouring positioning assembly provided by the present invention. Figure 4 This is a three-dimensional exploded structural diagram of the semi-circular ring, top plate, and ring head of the rectangular corrugated steel frame and concrete pouring positioning component provided by the present invention. Figure 5 This is a three-dimensional structural schematic diagram of the jacking pipe integral forming equipment provided by the present invention; Figure 6 A three-dimensional exploded structural diagram of the top cover and frame I of the integral pipe forming equipment provided by the present invention; Figure 7 This is a three-dimensional exploded structural diagram of the top cover, semi-circular plate, and bottom plate of the integral pipe forming equipment provided by the present invention; Figure 8 This is a three-dimensional exploded structural diagram of the semi-circular plate, fixed shaft, and rubber strip I of the integral pipe forming equipment provided by the present invention. Figure 9 This is a three-dimensional structural diagram of the semi-circular plate, corrugated steel frame, and inner mold of the jacking pipe integral forming equipment provided by the present invention. Figure 10 This is a three-dimensional cross-sectional view of template I and template II of the integral pipe jacking equipment provided by the present invention; Figure 11 This is a top view of the template I and template II of the integral pipe forming equipment provided by the present invention in their stowed state. Figure 12 This is a three-dimensional structural diagram of the lower moving block, upper moving block, and threaded rod II of the jacking pipe integral forming equipment provided by the present invention; Figure 13 This is a three-dimensional exploded structural diagram of the lower moving block, upper moving block, and bottom block of the jacking pipe integral forming equipment provided by the present invention; Figure 14 This is a three-dimensional exploded structural diagram of the concrete column and the integral pipe jacking equipment provided by the present invention.

[0020] In the diagram: 1. Semicircular plate; 2. Semicircular ring; 3. Connecting rod; 4. Pin; 5. Fixing plate; 6. Top plate; 7. Ring head; 8. Pin; 9. Hydraulic cylinder; 10. Ring sleeve; 11. Corrugated steel frame; 12. Rubber sheet; 13. Base plate; 14. Frame I; 15. Threaded rod I; 16. Nut block; 17. Sliding rod; 18. Sliding groove; 19. Top cover; 20. Injection pipe; 21. Injection hopper; 22. Sealing ring; 23. Annular sealing groove; 24. Frame 25. Body II; 26. Fixed shaft; 27. Connecting lug; 28. Bolt; 29. ​​Rubber strip I; 30. Groove; 31. Inner mold; 32. Template I; 33. Rubber strip II; 34. Threaded rod II; 35. Lower moving block; 36. Rotating rod I; 37. Gear ring; 38. Template II; 39. Upper moving block; 40. Rotating rod II; 41. Slot; 42. Bottom block; 43. Lead screw; 44. Moving groove; 45. Moving seat; 46. Concrete column. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In one embodiment: Refer to Figures 1-4 The rectangular corrugated steel frame and concrete pouring positioning component relates to the field of pipeline construction technology and mainly includes a semi-circular plate 1, a semi-circular ring 2, a plug part, a ring head 7, a pin 8, a hydraulic cylinder 9, and a ring sleeve 10.

[0023] Reference Figure 1 and Figure 8 There are two semicircular plates 1. The two semicircular plates 1 are rotated and spliced ​​around the fixed shaft 25 to form an outer mold. One side of one of the semicircular plates 1 is rotatably connected to a hydraulic cylinder 9. The piston rod of the hydraulic cylinder 9 is fixed with an annular sleeve 10. A pin 8 slides through the annular sleeve 10.

[0024] Reference Figure 3 Multiple semicircular rings 2 are provided, divided into two groups, each corresponding to one of the two semicircular plates 1. One end of each semicircular ring 2 is fixed with a ring head 7. Two ring heads 7 at the same height are arranged vertically. When two semicircular rings 2 are joined to form a rotating ring, the two ring heads 7 overlap. At this point, a pin 8 is inserted through the overlapping ring heads 7 to fix the two semicircular rings 2. The hydraulic cylinder 9, in cooperation with the annular sleeve 10, drives the pin 8 to move. The pin 8, through its engagement with the ring heads 7, drives the rotating ring to move, thereby driving the insertion part to operate.

[0025] Reference Figures 1-4 The insertion part includes multiple top plates 6, which are inserted into the troughs of the corrugated steel frame 11. The corrugated steel frame 11 has a rectangular cross-section. Specifically, the insertion part also includes multiple connecting rods 3 rotating on the top of the semicircular ring 2. Each connecting rod 3 has a pin 4 rotatably connected to its top end away from the semicircular ring 2. Each pin 4 has a fixing plate 5 fixedly fitted on its outer wall, and one end of the fixing plate 5 is fixedly connected to the corresponding top plate 6. One end of the top plate 6 slides through the semicircular plate 1 in a sealed manner. When the semicircular ring 2 moves along the circumference of the outer mold, the top plate 6 is driven to extend into the outer mold and insert into the troughs of the corrugated steel frame 11 through the cooperation of the connecting rods 3 and the pins 4, thereby positioning the corrugated steel frame 11.

[0026] In actual operation, two semicircular plates 1 are first rotated and spliced ​​around the fixed shaft 25 to form an outer mold, and the two semicircular plates 1 are fixedly connected by bolts 27. Then, two semicircular rings 2 are spliced ​​to form a rotating ring, and fixed by pins 8 passing through the overlapping ring heads 7. The hydraulic cylinder 9 is started, and the piston rod of the hydraulic cylinder 9 pushes the ring sleeve 10 to move, which in turn drives the pins 8 to move. The pins 8 drive the rotating ring to move along the circumference of the outer mold. During the movement of the rotating ring, the connecting rod 3 rotates around the rotation point of the semicircular ring 2, and at the same time drives the pin 4 to move. The pin 4 then drives the fixed plate 5 to move, so that the top plate 6 slides along the semicircular plate 1 and inserts into the trough of the corrugated steel frame 11, thereby achieving the positioning of the corrugated steel frame 11.

[0027] Reference Figures 5-12 The integral pipe jacking equipment relates to the field of pipeline construction technology, including the aforementioned rectangular corrugated steel frame and concrete pouring positioning components, as well as a base plate 13, a top cover 19, an inner mold 30, and a drive unit.

[0028] Reference Figure 8A frame II 24 is fixed to the top of the base plate 13. A fixing shaft 25 is fixed inside the frame II 24. Both semicircular plates 1 are rotatably connected to the fixing shaft 25 to achieve the rotational splicing of the two semicircular plates 1. Multiple connecting ears 26 are fixed to one side of each of the two semicircular plates 1. The multiple connecting ears 26 are arranged vertically. A single bolt 27 is provided between two connecting ears 26 at the same height on the two semicircular plates 1 to fix the two semicircular plates 1 together.

[0029] Reference Figures 5-7 The top cover 19 is installed on top of the outer mold to close it. The bottom plate 13 has a closing part to control the top cover 19 to close the outer mold, facilitating subsequent concrete pouring operations. The top of the top cover 19 is provided with a limiting groove. When the top cover 19 closes the outer mold, the top end of the threaded rod II 33 is inserted into the limiting groove to limit the top end of the threaded rod II 33 and prevent it from bending. The closing part includes a frame I 14 fixed to the top of the bottom plate 13. A threaded rod I 15 is rotatably connected inside the frame I 14. A nut block 16 is threaded onto the outer wall of threaded rod I 15. Multiple sliding rods 17 are fixed to one side of the nut block 16. A sliding groove 18 is provided on the inner wall of one side of frame I 14, and the sliding rods 17 are slidably connected to the sliding groove 18. One side of the top cover 19 is rotatably fitted onto the outer wall of the nut block 16. Threaded rod I 15 is rotatably supported within frame I 14. A sealed dust cover is provided outside frame I 14. The nut block 16 and sliding rods 17 are both located inside the dust cover. An elastic sealing gasket is provided at the connection between the dust cover and the top cover 19. Multiple injection pipes 20 are fixed to the top of the top cover 19. The top ends of the multiple injection pipes 20 are fixedly connected to the same injection hopper 21, used to evenly pour concrete between the inner mold 30 and the outer mold through the multiple injection pipes 20.

[0030] In actual operation of the closed section, by rotating the threaded rod I15, since the threaded rod I15 is threadedly connected to the nut block 16, and the nut block 16 restricts its rotational freedom through the sliding fit between the sliding rod 17 and the sliding groove 18, the nut block 16 will move up and down along the threaded rod I15. The movement of the nut block 16 drives the top cover 19 to move, thereby realizing the closing or opening of the top cover 19 to the outer mold. When it is necessary to pour concrete, the top cover 19 is lowered to seal with the top of the outer mold; after the pouring is completed, the top cover 19 is raised to facilitate subsequent operations.

[0031] Reference Figure 10The top of the base plate 13 is provided with an inner mold 30 located inside the outer mold, and the corrugated steel frame 11 is located between the inner mold 30 and the outer mold. The inner mold 30 is composed of multiple templates I 31 and templates II 38. The top of the base plate 13 is provided with a driving part, which is used to drive the templates I 31 and templates II 38 to move to complete the splicing and disassembly of the inner mold 30. Both ends of the templates I 31 are fixed with rubber strips II 32, and the rubber strips II 32 cooperate with one end of the adjacent templates II 38 to increase the sealing between the templates I 31 and templates II 38.

[0032] Reference Figures 9-13 The drive unit includes a threaded rod II33 fixed to the top of the base plate 13. The outer wall of the threaded rod II33 is slidably fitted with a plurality of upper moving blocks 39 and lower moving blocks 34. The threaded rod II33 is vertically fixed to the base plate 13. A telescopic dust cover is fitted on the outside of the threaded rod II33. The two ends of the dust cover are respectively sealed to the base plate 13 and the corresponding lower moving block 34 and upper moving block 39. Multiple rotating rods II 40 are rotatably connected to the outer walls of multiple upper moving blocks 39. The ends of the multiple rotating rods II 40 away from the upper moving blocks 39 are rotatably connected to the corresponding templates II 38, which are used to drive the templates II 38 to move by lifting the upper moving blocks 39. Multiple rotating rods I 35 are rotatably connected to the outer walls of multiple lower moving blocks 34. The ends of the multiple rotating rods I 35 away from the lower moving blocks 34 are respectively rotatably connected to the corresponding templates I 31. The bottom of the upper moving blocks 39 and the lower moving blocks 34 are rotatably connected to toothed rings 36. The toothed rings 36 are provided with internal threads and are threaded to threaded rods II 33 through the internal threads, which are used to drive the corresponding lower moving blocks 34 and the upper moving blocks 39 to rise and fall by rotating the toothed rings 36. The bottom of the upper moving blocks 39 and the lower moving blocks 34 are rotatably provided with drive gears 37, and the drive gears 37 mesh with the corresponding toothed rings 36. The meshing point of the drive gears 37 and the toothed rings 36 is provided with a dustproof cover, and the dustproof cover has a reserved oil filling port. Both the lower moving block 34 and the upper moving block 39 are equipped with motors for driving the gear 37 to rotate.

[0033] When the inner mold 30 is assembled in the actual operation drive unit, the motor in the lower moving block 34 is started first. The motor drives the drive gear 37 to rotate, and the drive gear 37 drives the gear ring 36 to rotate. Since the gear ring 36 is threadedly connected to the threaded rod II 33, and the sliding freedom of the lower moving block 34 on the threaded rod II 33 is restricted by the rotating rod I 35 and the template I 31, the lower moving block 34 will move upward along the threaded rod II 33. The downward movement of the lower moving block 34 drives the template I 31 to move through the rotating rod I 35. Then the motor in the upper moving block 39 is started. Similarly, the downward movement of the upper moving block 39 is driven by the rotating rod I 35. Rod II 40 drives template II 38 to move, so that multiple templates II 38 and template I 31 are spliced ​​together to form a complete inner mold 30. When removing the inner mold 30, the operation sequence is reversed. First, the lower moving block 34 is moved down to remove template I 31, and then the upper moving block 39 is moved down to remove template II 38. By raising and lowering the lower moving block 34 and the upper moving block 39 in sequence, multiple templates I 31 and template II 38 can be moved in sequence, so as to easily splice together to form the inner mold 30 and remove the inner mold 30. At the same time, interference between templates I 31 and template II 38 can be avoided during splicing and removal.

[0034] Reference Figure 7 and Figure 11 Each of the multiple templates I 31 and II 38 has a movable seat 45 fixed at its top and bottom. The top of the base plate 13 and the bottom of the top cover 19 are each provided with multiple movable grooves 44, which slide in conjunction with the movable seats 45. This ensures the stability of templates I 31 and II 38 during movement. When templates I 31 and II 38 move, the movable seats 45 slide within the movable grooves 44, providing guidance and support for their movement and preventing them from shifting or shaking during movement.

[0035] Reference Figures 6-8 The top of the outer mold is provided with an annular sealing groove 23, and the bottom of the top cover 19 is fixed with a sealing ring 22 that inserts into the annular sealing groove 23 to increase the sealing between the top cover 19 and the outer mold. When the top cover 19 is lowered to engage with the outer mold, the sealing ring 22 is inserted into the annular sealing groove 23, forming a sealing barrier to prevent concrete from leaking out from the gap between the top cover 19 and the outer mold during the pouring process. Rubber strips I 28 are fixedly embedded at both ends of one semicircular plate 1, and grooves 29 are provided at both ends of the other semicircular plate 1. The rubber strips I 28 and the grooves 29 cooperate to increase the sealing between the two semicircular plates 1. When the two semicircular plates 1 are joined, the rubber strips I 28 are embedded in the grooves 29, effectively preventing concrete from leaking from the joint of the two semicircular plates 1.

[0036] This equipment also includes a PLC controller, which is electrically connected to the hydraulic control systems of the lower moving block 34, the upper moving block 39, the drive threaded rod I15, and the hydraulic cylinder 9. The PLC controller has a preset control program that can automatically control the forward and reverse rotation of each motor and the extension and retraction of the hydraulic cylinder according to the sequence of outer mold assembly → skeleton positioning → top cover closing → inner mold assembly → concrete pouring → top plate extraction → inner mold disassembly → outer mold opening, so as to realize the automated operation of the equipment.

[0037] The corrugated steel frame 11 is the same as the corrugated steel frame structure in the utility model with announcement number CN215956007U.

[0038] In another embodiment: Refer to Figure 6 and Figure 14 Multiple threaded rods 43 are threaded through the top cover 19. The bottom ends of the threaded rods 43 are rotatably connected to a base block 42. The bottom of the base block 42 has a slot 41, into which a rubber sheet 12 is inserted. The upper end of the rubber sheet 12 is interference-fitted into the slot 41, and friction is generated between the rubber sheet 12 and the slot 41. A concrete column 46 is fixed to the bottom of the rubber sheet 12. When the top cover 19 closes the top of the outer mold, the threaded rods 43 are rotated, causing the threaded rods 43 to descend. The threaded rods 43 drive the base block 42 to descend, and the base block 42 presses the concrete column 46 into the concrete between the inner mold 30 and the outer mold. The concrete column 46 can generate vertical compressive force on the top of the corrugated steel frame 11, preventing the corrugated steel frame 11 from buoyant and shifting upward after the concrete is poured later. After the concrete has solidified, the threaded rod I15 is rotated in the opposite direction to drive the top cover 19 to move upward. Since the concrete column 46 was previously submerged in the concrete, it becomes integrated with the concrete after it solidifies. After the top cover 19 moves upward, the rubber sheet 12 detaches from the slot 41, releasing the concrete column 46 from the bottom block 42. Since the rubber sheet 12 is located at the top of the jacking pipe after the concrete solidifies and forms the jacking pipe, the rubber sheet 12 can be removed from the concrete column 46 to avoid affecting the later use of the jacking pipe.

[0039] The production method of the integral pipe jacking forming equipment includes the following steps: S1. Drive the two semicircular plates 1 to rotate around the fixed shaft 25. The bolts 27 pass through the corresponding two connecting ears 26 to fix the two semicircular plates 1. The two semicircular plates 1 are spliced ​​to form the outer mold. After the two semicircular plates 1 are spliced, the ring heads 7 of the two semicircular rings 2 are stacked and overlapped at one end. The pin 8 passes through the two ring heads 7. During the process of passing through, the pin 8 also passes through the ring sleeve 10 to complete the docking of the two semicircular rings 2. Then, the corrugated steel frame 11 is placed in the outer mold. The piston rod of the hydraulic cylinder 9 pulls the pin 8 to move. The pin 8 drives the semicircular ring 2 to rotate synchronously. During the rotation of the semicircular ring 2, the rotation of the connecting rod 3 and the fixed plate 5 can drive the top plate 6 to extend into the outer mold and insert into the trough of the corrugated steel frame 11. Therefore, the multiple top plates 6 on the two semicircular plates 1 cooperate to clamp and position the corrugated steel frame 11, so that the corrugated steel frame 11 is located on the same axis as the outer mold. S2. The motor on frame I14 drives the threaded rod I15 to rotate. The threaded rod I15 drives the nut block 16 and the top cover 19 to move upward, and then pushes the top cover 19 to rotate until the top cover 19 rotates above the outer mold. The reverse drive of the threaded rod I15 rotates, causing the top cover 19 to move downward. The sealing ring 22 extends into the annular sealing groove 23. The top cover 19 closes the top of the outer mold, and the bottom of the concrete column 46 just touches the top of the corrugated steel frame 11. This is used to position the corrugated steel frame 11 and prevent the corrugated steel frame 11 from floating after the top plate 6 moves out of the trough of the corrugated steel frame 11 after the concrete is poured. When the top cover 19 moves down to the top of the outer mold, the movable seat 45 on the template I31 and template II38 just extends into the movable groove 44 below the top cover 19. This is used to limit the movement of the template I31 and template II38 later. S3. The motor in the upper moving block 39 drives the corresponding gear 37 to rotate, and the gear 37 drives the gear ring 36 to rotate. The internal thread of the gear ring 36 is threadedly connected to the threaded rod II 33, driving the upper moving block 39 to move upward along the axis of the threaded rod II 33. The moving block 39 pushes the template II 38 to move outward through the rotating rod II 40 until it reaches the designated position. Then, the motor in the lower moving block 34 drives the corresponding gear 37 to rotate, and the gear 37 drives the gear ring 36 to rotate. The internal thread of the gear ring 36 is threadedly connected to the threaded rod II 33, driving the lower moving block 34 to move upward along the axis of the threaded rod II 33. The lower moving block 34 pushes the template I 31 to move outward through the rotating rod I 35. Multiple templates I 31 and template II 38 are spliced ​​to form the inner mold 30, while the corrugated steel skeleton 11 is located between the inner mold 30 and the outer mold. In addition, the rubber strip II 32 can increase the sealing between templates I 31 and template II 38. S4. Concrete is poured into the gap between the inner mold 30 and the outer mold through the injection hopper 21 and the injection pipe 20. After the concrete is poured, the concrete submerges the top plate 6. At this time, the piston rod of the hydraulic cylinder 9 extends and pushes the semi-circular ring 2 to rotate in the opposite direction. Through the cooperation of the connecting rod 3 and the fixing plate 5, the top plate 6 is pulled out from the trough of the outer wall of the corrugated steel frame 11. One end of the top plate 6 is still within the wall thickness of the semi-circular plate 1 to avoid concrete leakage. S5. After the concrete has solidified, the threaded rod I15 rotates to drive the top cover 19 to move upward. Since the concrete column 46 was previously submerged in the concrete, it becomes integrated with the concrete after solidification. After the top cover 19 moves upward, the rubber sheet 12 disengages from the slot 41, releasing the concrete column 46 from the bottom block 42. Then, the motor in the lower moving block 34 drives the lower moving block 34 to move downward, causing the template I31 to retract towards the center before the template II38. Then, the motor in the upper moving block 39 runs, driving the upper moving block 39 to move downward, driving the template II38 to retract towards the center, avoiding interference between the template I31 and template II38 during the retraction process. This completes the separation of the inner mold 30 from the concrete. After that, the two semicircular plates 1 are rotated to disassemble the concrete from the outer mold. The operation is simple.

[0040] However, as is well known to those skilled in the art, the working principle and wiring method of hydraulic cylinder 9 are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rectangular corrugated steel frame and concrete casting positioning assembly, characterized in that, include: The outer mold is formed by the joining of two semi-circular plates (1); Multiple semicircular rings (2) are arranged along the axial direction of the outer mold, and each semicircular ring (2) can be slidably fitted onto the outer peripheral wall of the outer mold. Two semicircular rings (2) at the same height are joined to form a rotating ring; and A plug-in portion is provided on the semi-circular ring (2); The insertion part includes a top plate (6), a connecting rod (3), a pin (4) and a fixing plate (5). One end of the connecting rod (3) is hinged to the semicircular ring (2), and the other end of the connecting rod (3) is hinged to the fixing plate (5) through the pin (4). The fixing plate (5) is fixedly connected to the top plate (6), and the top plate (6) is slidably inserted through the semicircular plate (1). When the semicircular ring (2) slides along the circumference of the outer mold, the top plate (6) is driven to move radially inward and insert into the trough of the corrugated steel skeleton (11) placed in the outer mold through the transmission of the connecting rod (3) and the pin (4), thereby realizing the radial positioning of the corrugated steel skeleton (11).

2. The rectangular corrugated steel frame and concrete casting positioning assembly according to claim 1, characterized in that, Each of the semicircular rings (2) has a ring head (7) fixedly provided at one end. When two semicircular rings (2) are spliced ​​together, the two ring heads (7) overlap vertically. It also includes a hydraulic drive mechanism, which includes a hydraulic cylinder (9) and a pin (8). The cylinder body of the hydraulic cylinder (9) is hinged to one of the semicircular plates (1). The piston rod end of the hydraulic cylinder (9) is connected to an annular sleeve (10). The pin (8) is slidably inserted through the annular sleeve (10) and used to simultaneously insert two overlapping ring heads (7) to lock the rotating ring. The hydraulic cylinder (9) drives the pin (8) to move linearly, which can cause the locked rotating ring to slide along the circumference of the outer mold, thereby driving the insertion part to run.

3. The rectangular corrugated steel frame and concrete casting positioning assembly according to claim 1, characterized in that, The two semicircular plates (1) are provided with multiple connecting ears (26) on their mating side edges, and the corresponding connecting ears (26) are connected and fixed by bolts (27).

4. A pipe jacking integral forming equipment, comprising the rectangular corrugated steel frame and concrete pouring positioning assembly as described in claim 3, characterized in that, Also includes: Base plate (13); The frame II (24) is fixed on the base plate (13). The frame II (24) is provided with a fixed shaft (25). Both semicircular plates (1) can be rotatably sleeved on the fixed shaft (25). Top cover (19) for closing the top of the outer mold; The inner mold (30) is set on the base plate (13) and located inside the outer mold, and the corrugated steel frame (11) is placed in the annular cavity formed between the inner mold (30) and the outer mold.

5. The integral pipe jacking forming equipment according to claim 4, characterized in that, The inner mold (30) is assembled from multiple templates I (31) and multiple templates II (38), and the end of the template I (31) is provided with a sealing rubber strip II (32). It also includes a drive unit, which is used to drive the template I (31) and the template II (38) to move in order to complete the assembly and disassembly of the inner mold (30).

6. The integral pipe jacking forming equipment according to claim 5, characterized in that, The drive unit includes: Threaded rod II (33) is vertically fixed to the base plate (13); At least one lower moving block (34) and at least one upper moving block (39) are both threadedly fitted onto the threaded rod II (33); Multiple first rotating rods (35), one end of which is hinged to the lower moving block (34) and the other end of which is hinged to the corresponding template I (31); Multiple second rotating rods (40), one end of which is hinged to the upper moving block (39) and the other end of which is hinged to the corresponding template II (38); By controlling the lower moving block (34) and the upper moving block (39) to move up and down along the threaded rod II (33) in sequence, the template I (31) and the template II (38) can be driven to perform mold closing or mold opening movements in sequence.

7. The integral pipe jacking forming equipment according to claim 6, characterized in that, It also includes a closing part for driving the top cover (19), the closing part including a frame I (14), a threaded rod I (15) and a nut block (16), the frame I (14) being fixed on the base plate (13), the threaded rod I (15) being rotatably supported in the frame I (14), the nut block (16) being threadedly engaged with the threaded rod I (15), and the nut block (16) being slidably engaged with the frame I (14); One side of the top cover (19) is rotatably connected to the nut block (16). The opening and closing of the top of the outer mold is achieved by rotating the threaded rod I (15) to drive the nut block (16) and the top cover (19) to rise and fall as a whole.

8. The integral pipe jacking forming equipment according to claim 7, characterized in that, The bottom of the top cover (19) is fixed with a sealing ring (22), and the top of the outer mold is provided with an annular sealing groove (23) that matches the sealing ring (22).

9. The integral pipe jacking forming equipment according to claim 8, characterized in that, One of the semicircular plates (1) has a rubber strip I (28) on its mating end face, and the other semicircular plate (1) has a groove (29) that presses against the rubber strip I (28) on its mating end face.

10. The integral pipe jacking forming equipment according to claim 9, characterized in that, The top cover (19) is also provided with a vertical pressing mechanism, which includes a screw (43), a bottom block (42), a rubber sheet (12) and a concrete column (46). The lead screw (43) is threaded to the top cover (19), and its bottom end is rotatably connected to the bottom block (42). The bottom of the bottom block (42) is provided with a slot (41). The upper part of the rubber sheet (12) is inserted into the slot (41) in an interference fit manner. The concrete column (46) is fixed to the bottom of the rubber sheet (12). After the top cover (19) closes the outer mold, tightening the screw (43) can drive the concrete column (46) to press down and press against the top of the corrugated steel frame (11) to provide vertical constraint during concrete pouring; after the concrete solidifies, the concrete column (46) and the concrete become one, and when the top cover (19) is lifted, the rubber sheet (12) can be disengaged from the slot (41), thereby realizing the automatic separation of the vertical pressing mechanism from the top cover (19).

Images