Concrete energy-saving prefabrication forming device for vertical shaft pipe jacking

Abstract

The invention discloses a concrete energy-saving prefabrication forming device for vertical shaft pipe jacking, and relates to the technical field of concrete pipe jacking, the concrete energy-saving prefabrication forming device comprises a base, a placing seat is fixed at the upper end of the base, a steel reinforcement framework is arranged above the placing seat, an outer forming mechanism is arranged at the upper end of the placing seat, and a mounting frame is fixed at the upper end of the base; a second hydraulic cylinder is mounted at the top of the mounting frame, the telescopic end of the second hydraulic cylinder downwards penetrates through the mounting frame and is connected with an inner forming mechanism, two sealing mechanisms are arranged at the upper end of the base and symmetrically arranged on the two sides of the containing base, a steam curing mechanism is arranged on one side of the base, and a steam curing mechanism is arranged on the other side of the base. A supporting column is arranged at the lower end of the base. The whole efficiency of pipe jacking prefabrication forming production can be effectively improved, the quality of pipe jacking prefabrication forming can be guaranteed, the energy-saving and water-saving effects can be achieved, and the requirement for energy-saving production is met.

Description

Technical Field

[0001] The invention relates to the technical field of concrete jacking pipe production, in particular to an energy-saving prefabricated concrete forming device for shaft jacking pipes. Background Art

[0002] Shaft jacking is a trenchless underground pipeline laying method that combines shaft construction with pipe jacking technology. It is suitable for projects involving deeply buried pipelines, crossing obstacles (such as buildings, roads, rivers) or complex geological conditions. Pipe jacking is usually made of precast concrete, with a steel skeleton set up inside and then concrete poured into shape.

[0003] However, the current traditional concrete pipe jacking production method has problems such as low production efficiency, high energy consumption, and uneven quality of finished products. Specifically, the traditional molding process relies on manual operation or simple mechanical equipment, which makes it difficult to achieve fast and accurate molding, resulting in long production cycles and high costs. In addition, during the concrete solidification process, the lack of an effective exhaust mechanism can easily cause many pores and uneven density inside the concrete, affecting the strength and durability of the pipe jacking. In addition, the lack of maintenance function makes it difficult to ensure that the concrete pipe jacking reaches sufficient strength standards in a short period of time, affecting the project progress and molding quality.

[0004] Therefore, a concrete energy-saving prefabricated forming device for shaft jacking pipe is designed and proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an energy-saving prefabricated concrete forming device for shaft jacking.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A concrete energy-saving prefabricated forming device for a vertical shaft jacking pipe comprises a base, a placing seat is fixed to the upper end of the base, a steel frame is provided above the placing seat, an external forming mechanism is provided at the upper end of the placing seat, a mounting frame is fixed to the upper end of the base, a second hydraulic cylinder is installed on the top of the mounting frame, the telescopic end of the second hydraulic cylinder passes downward through the mounting frame and is connected to the internal forming mechanism, two sealing mechanisms are provided at the upper end of the base, the two sealing mechanisms are symmetrically arranged on both sides of the placing seat, a steam curing mechanism is provided on one side of the base, and a support column is provided at the lower end of the base.

[0007] As a further improvement of the present invention, the external forming mechanism includes a fixing frame fixedly connected to the upper end of the placing seat, a fixed shaft is provided below the fixing frame, the upper end of the fixed shaft is fixed on the inner top wall of the fixing frame, the lower end of the fixed shaft is fixed to the upper end of the placing seat, and two outer formworks are provided above the placing seat, the two outer formworks are symmetrically arranged on both sides of the steel frame, the outer formworks are hinged to the fixed shaft through a torsion hinge, a traction channel is provided inside the fixing frame, a traction rope is provided inside the traction channel, one end of the traction rope is fixedly connected to the two outer formworks, and the end of the traction rope away from the outer formwork first penetrates the placing seat and the base downward, and then penetrates the base upward.

[0008] As a further improvement of the present invention, the inner forming mechanism includes an inner mold core, a concrete ring distributor is mounted on the side wall of the inner mold core near the upper end, a concrete feeding pipe is connected to the concrete ring distributor, a connecting column movably connected to the inner mold core is passed through the upper end of the inner mold core, a slider is fixed on the side wall of the connecting column, a slide groove is passed through the side wall of the mounting frame, the slider slides inside the slide groove, the end of the traction rope away from the outer mold shell is fixedly connected to the lower end of the slider, a slide rod is vertically passed through the slider, both ends of the slide rod are fixed on the inner wall of the slide groove, an installation cavity is provided inside the inner mold core, and a vibration structure is provided inside the installation cavity.

[0009] As a further improvement of the present invention, the sealing mechanism includes a fixed seat fixed to the upper end of the base, a first hydraulic cylinder is installed on the side wall of the fixed seat, the telescopic end of the first hydraulic cylinder passes through the fixed seat and is fixedly connected to a lower sealing shell, an upper sealing shell is fixed to the upper end of the lower sealing shell, a pressure touch switch is installed on the inner bottom wall of the slide groove, and the pressure touch switch is electrically connected to the first hydraulic cylinder.

[0010] As a further improvement of the present invention, the steam maintenance mechanism includes a steam furnace, which is provided with a water inlet and a steam outlet. A preheating tube is provided above the steam furnace, and a heat exchange pipe is provided inside the preheating tube. The two ends of the heat exchange pipe respectively pass through the upper and lower ends of the preheating tube, and the heat exchange pipe is fixedly connected to the preheating tube. The upper end of the heat exchange pipe is connected to an exhaust pipe, and the end of the exhaust pipe away from the heat exchange pipe is connected to one of the upper sealing shells. The upper part of the side wall of the preheating tube is connected to a water inlet pipe, and the lower part of the side wall of the preheating tube is connected to a water outlet pipe, and the water outlet pipe is connected to the water inlet end, and the steam outlet end is connected to a steam main pipe, and two steam branch pipes are connected to the steam main pipe, and the steam branch pipes pass through the base and the placement seat upward.

[0011] As a further improvement of the present invention, two redirecting wheels are installed at the lower end of the base, and the traction rope passes around the two redirecting wheels. Two guide wheels are installed inside the traction channel, and the traction rope passes around the guide wheels.

[0012] As a further improvement of the present invention, a fixing block is fixed on the side wall of the inner mold core, two locking rods are fixed to the lower end of the fixing block, the upper ends of the two outer mold shells are penetrated by locking grooves that cooperate with the locking rods, and the upper end of the placement seat is provided with a locking socket that cooperates with the two locking rods.

[0013] As a further improvement of the present invention, the vibration structure includes a driving member and two vibrating members symmetrically arranged on both sides of the driving member, the driving member includes a motor embedded in the top wall of the mounting cavity, the output shaft of the motor is fixed with a rotating block, and magnetic blocks are fixed on the opposite side walls of the rotating block, the vibrating member includes a mounting block fixed on the top wall of the mounting cavity, a knocking block slidably connected to the mounting block is provided on the side wall of the mounting block, a tension spring is sleeved on the knocking block, one end of the tension spring is fixed on the mounting block, and the other end of the tension spring is fixed on the knocking block, a vibration rod slidably connected to the inner wall of the mounting cavity is penetrated through the inner wall of the mounting cavity, a spring is sleeved on the vibration rod, one end of the spring is fixed on the inner wall of the mounting cavity, and the other end of the spring is fixed on the vibration rod.

[0014] As a further improvement of the present invention, a spiral heat exchange plate is fixedly sleeved on the side wall of the heat exchange tube, the spiral heat exchange plate is located on the inner side of the preheating cylinder, and the lower end of the heat exchange tube is connected to a filter.

[0015] Beneficial effects of the present invention: Through the cooperation between the external forming mechanism and the internal forming mechanism, the forming space of the concrete jacking pipe can be quickly formed, thereby realizing the efficient prefabrication of the concrete jacking pipe. The external forming mechanism and the internal forming mechanism are easy to open, thereby facilitating the subsequent demoulding and unloading operations of the concrete jacking pipe after forming, thereby improving the overall efficiency of the prefabrication production of the concrete jacking pipe.

[0016] The vibration structure is connected to the steel frame, and then the steel frame can be vibrated through the vibration structure. The steel frame can transmit the vibration to the concrete, which can effectively discharge the air in the concrete, thereby ensuring the good quality of the finished concrete jacking pipe.

[0017] By setting up a steam curing mechanism, a high temperature and high humidity environment can be formed, which can accelerate the cement hydration reaction, effectively shorten the production cycle, and significantly improve the early strength of the concrete jacking pipe, enhance durability, and reduce the incidence of surface cracks.

[0018] By setting up a sealing mechanism, steam is introduced into the interior of the lower sealing shell, and then slowly penetrates into the surface of the concrete jacking pipe through the gap between the outer formwork shells. The steam does not directly impact the surface of the concrete jacking pipe, but acts on the concrete jacking pipe indirectly. This method can not only ensure the maintenance effect, but also avoid physical damage to the concrete jacking pipe.

[0019] Through heat exchange tubes and spiral heat exchange plates, the waste heat of the exhausted steam can be recovered and utilized, and the waste heat of the steam can be used to preheat the cold water entering the steam boiler, thereby reducing subsequent heating energy consumption and achieving efficient utilization of thermal energy; at the same time, the exhausted steam is recovered through the waste heat inside the heat exchange tube, and the steam will cool down to form condensed water, which is then filtered through a filter so that the condensed water can be reused, achieving a water-saving effect and meeting the needs of energy-saving production.

[0020] The present invention can effectively improve the overall efficiency of the jacking pipe prefabrication production, can ensure the quality of the jacking pipe prefabrication, and can achieve the effect of energy saving and water saving, which meets the needs of energy-saving production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram from one perspective of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 2 This is a schematic structural diagram from another perspective of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 3 This is a schematic structural diagram of the installation cavity and vibration structure of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 4 This is a structural diagram of a steam transmission main pipe, steam transmission branch pipe, placement seat, and locking socket of a concrete energy-saving prefabricated forming device for shaft jacking proposed by the present invention; Figure 5 This is a structural diagram of the inner forming mechanism, outer forming mechanism, placement seat, steam main pipe, and steam branch pipe of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 6 This is a schematic structural diagram of a fixing frame, a traction channel, a traction rope, and a guide wheel of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 7 This is a schematic structural diagram of the connecting columns of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention; Figure 8 This is a schematic structural diagram of the heat exchange tubes and spiral heat exchange plates of a concrete energy-saving prefabricated forming device for shaft jacking proposed by the present invention; Figure 9 This is a structural schematic diagram of the lower sealing shell and the upper sealing shell of an energy-saving prefabricated concrete forming device for shaft jacking proposed by the present invention.

[0022] In the figure: 1 base, 2 support column, 3 fixed seat, 4 first hydraulic cylinder, 5 lower sealing shell, 6 upper sealing shell, 7 mounting frame, 8 slide, 9 slide bar, 10 second hydraulic cylinder, 11 concrete feed pipe, 12 inner mold core, 13 outer mold shell, 14 steel frame, 15 placement seat, 16 exhaust pipe, 17 heat exchange pipe, 18 water inlet pipe, 19 preheating cylinder, 20 water outlet pipe, 21 filter, 22 steam furnace, 23 water inlet end, 24 steam outlet end, 25 slider, 26 pressure contact Switch, 27 traction rope, 28 installation cavity, 29 motor, 30 rotating block, 31 magnetic block, 32 vibration rod, 33 spring, 34 installation block, 35 tension spring, 36 knocking block, 37 steam main pipe, 38 steam branch pipe, 39 locking socket, 40 connecting column, 41 concrete ring distributor, 42 fixing block, 43 locking plug rod, 44 fixing frame, 45 torsion hinge, 46 spiral heat exchange plate, 47 redirecting wheel, 48 traction channel, 49 guide wheel, 50 fixed shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0024] Reference Figures 1-9 , a concrete energy-saving prefabricated forming device for a vertical shaft jacking pipe comprises a base 1, a placing seat 15 is fixed on the upper end of the base 1, and a steel frame 14 is provided above the placing seat 15, and further, holes that cooperate with the steel frame 14 can be provided on the placing seat 15 (not shown in the figure), so that when the steel frame 14 is placed on the placing seat 15, it can be positioned more quickly and accurately, and an external forming mechanism is provided at the upper end of the placing seat 15, a mounting frame 7 is fixed to the upper end of the base 1, and a second hydraulic cylinder 10 is installed on the top of the mounting frame 7, and the telescopic end of the second hydraulic cylinder 10 penetrates the mounting frame 7 downward and is connected to the internal forming mechanism, and two sealing mechanisms are provided at the upper end of the base 1, and the two sealing mechanisms are symmetrically arranged on both sides of the placing seat 15, a steam curing mechanism is provided on one side of the base 1, and a support column 2 is provided at the lower end of the base 1.

[0025] In the present invention, the outer forming mechanism includes a fixing frame 44 fixedly connected to the upper end of the placement seat 15, a fixing shaft 50 is provided below the fixing frame 44, the upper end of the fixing shaft 50 is fixed to the inner top wall of the fixing frame 44, and the lower end of the fixing shaft 50 is fixed to the upper end of the placement seat 15. Two outer formwork shells 13 are provided above the placement seat 15. When the two outer formwork shells 13 are enclosed, the gap between them is extremely narrow. The concrete slurry cannot penetrate due to its viscosity and surface tension, but it does not affect the passage of steam. The two outer formwork shells 13 Symmetrically arranged on both sides of the steel skeleton 14, the outer formwork 13 is hinged to the fixed shaft 50 through a torsion hinge 45. The rotational torque of the torsion hinge 45 can automatically close the two outer formworks 13 to clamp the mold. A traction channel 48 is provided inside the fixed frame 44, and a traction rope 27 is provided inside the traction channel 48. One end of the traction rope 27 is fixedly connected to the two outer formworks 13, and the end of the traction rope 27 away from the outer formwork 13 first penetrates the placement seat 15 and the base 1 downward, and then penetrates the base 1 upward.

[0026] The inner molding mechanism includes an inner mold core 12, and a concrete ring distributor 41 is mounted on the side wall near the upper end of the inner mold core 12. The concrete ring distributor 41 is connected to the concrete feeding pipe 11. The upper end of the inner mold core 12 is penetrated by a connecting column 40 that is movably connected to the inner mold core 12. The connecting column 40 is designed to be thin at the top and thick at the bottom, so that the connecting column 40 will not slip out of the inner mold core 12. Since there is a certain amount of movable space between the connecting column 40 and the inner mold core 12, when the inner mold core 12 is attached to the surface of the placement seat 15, the connecting column 40 can also have a certain amount of downward movement space. A slider is fixed on the side wall of the connecting column 40. 25, a slide groove 8 is provided on the side wall of the mounting frame 7, and the slider 25 slides inside the slide groove 8. The end of the traction rope 27 away from the outer mold shell 13 is fixedly connected to the lower end of the slider 25. Two redirecting wheels 47 are installed at the lower end of the base 1. The traction rope 27 passes around the two redirecting wheels 47. Two guide wheels 49 are installed inside the traction channel 48. The traction rope 27 passes around the guide wheels 49. The traction rope 27 can be guided by the redirecting wheels 47 and the guide wheels 49, thereby avoiding wear of the traction rope 27 at the conversion direction, effectively protecting the traction rope 27. A slide bar 9 is vertically provided on the slider 25. Both ends of the slide bar 9 They are all fixed on the inner wall of the slide 8, the interior of the inner mold core 12 is provided with a mounting cavity 28, the interior of the mounting cavity 28 is provided with a vibration structure, the vibration structure includes a driving member and two vibrating members symmetrically arranged on both sides of the driving member, the driving member includes a motor 29 embedded in the top wall of the mounting cavity 28, the output shaft of the motor 29 is fixed with a rotating block 30, and magnetic blocks 31 are fixed on the opposite side walls of the rotating block 30. The vibrating member includes a mounting block 34 fixed on the top wall of the mounting cavity 28, and a knocking block 36 is provided on the side wall of the mounting block 34 to be slidably connected to the mounting block 34. A tension spring 35 is provided on the knocking block 36. The tension spring One end of the tension spring 35 is fixed to the mounting block 34, and the other end of the tension spring 35 is fixed to the knocking block 36. A vibration rod 32 is provided on the inner wall of the mounting cavity 28 and is slidably connected to the inner wall of the mounting cavity 28. A groove is provided at one end of the vibration rod 32 outside the mounting cavity 28, and the groove can be engaged with the upper end of the steel frame 14, so that when the vibration rod 32 vibrates, the vibration can be transmitted to the steel frame 14, and the steel frame 14 can be used to transmit the vibration to the concrete. A spring 33 is provided on the vibration rod 32, and one end of the spring 33 is fixed to the inner wall of the mounting cavity 28, and the other end of the spring 33 is fixed to the vibration rod 32.

[0027] The sealing mechanism includes a fixed seat 3 fixed to the upper end of the base 1, and a first hydraulic cylinder 4 is installed on the side wall of the fixed seat 3. The telescopic end of the first hydraulic cylinder 4 passes through the fixed seat 3 and is fixedly connected to the lower sealing shell 5. The upper end of the lower sealing shell 5 is fixed with an upper sealing shell 6. Sealing gaskets are provided at the edges of the lower sealing shell 5 and the upper sealing shell 6 to ensure the sealing of the lower sealing shell 5 and the upper sealing shell 6 when they are enclosed. A pressure touch switch 26 is installed on the inner bottom wall of the slide groove 8. The pressure touch switch 26 is electrically connected to the first hydraulic cylinder 4. When the pressure touch switch 26 is in a pressure touch state, the first hydraulic cylinder 4 is in an extended state. When the pressure touch switch 26 is not in a pressure touch state, the first hydraulic cylinder 4 is in a contracted state.

[0028] The steam maintenance mechanism includes a steam furnace 22, which is provided with a water inlet 23 and a steam outlet 24. A preheating tube 19 is provided above the steam furnace 22, and a heat exchange tube 17 is provided inside the preheating tube 19. The two ends of the heat exchange tube 17 respectively pass through the upper and lower ends of the preheating tube 19, and the heat exchange tube 17 is fixedly connected to the preheating tube 19. The upper end of the heat exchange tube 17 is connected to the exhaust pipe 16, and a spiral heat exchange plate 46 is fixedly sleeved on the side wall of the heat exchange tube 17. The spiral heat exchange plate 46 is located on the inner side of the preheating tube 19. The provision of the spiral heat exchange plate 46 can increase the heat exchange area, so that the preheat in the steam is more efficiently converted out, thereby improving the heat exchange efficiency. The lower end of the heat exchange tube 17 is connected to the filter 21, and the exhaust The exhaust steam is recovered as waste heat inside the heat exchange tube 17, and the steam will cool down to form condensed water, which is then filtered by the filter 21 so that the condensed water can be reused to achieve a water-saving effect. The exhaust pipe 16 is connected to one end of the upper sealed shell 6 away from the heat exchange tube 17, and the upper part of the side wall of the preheating tube 19 is connected to a water inlet pipe 18. The water inlet pipe 18 is connected to the external water inlet and can replenish water in the box steam boiler 22. The lower part of the side wall of the preheating tube 19 is connected to a water outlet pipe 20, and the water outlet pipe 20 is connected to the water inlet end 23. The steam outlet end 24 is connected to a steam main pipe 37, and two steam branch pipes 38 are connected to the steam main pipe 37. The steam branch pipe 38 passes through the base 1 and the placement seat 15 upward.

[0029] A fixing block 42 is fixed on the side wall of the inner mold core 12, and two locking rods 43 are fixed to the lower end of the fixing block 42. The upper ends of the two outer mold shells 13 are penetrated by locking grooves that cooperate with the locking rods 43, and the upper end of the placement seat 15 is provided with a locking socket 39 that cooperates with the two locking rods 43.

[0030] When the present invention is used, the steel frame 14 is placed on the placement seat 15, and then the second hydraulic cylinder 10 is activated to extend, driving the connecting column 40 to move downward. When the connecting column 40 moves downward, the slider 25 is driven downward, and then the traction rope 27 is loosened. Under the action of the rotary torque of the torsion hinge 45, the two outer mold shells 13 rotate synchronously, approaching and closing each other. Then, as the connecting column 40 continues to move downward, the inner mold core 12 moves downward and is inserted into the inner side of the steel frame 14. Then, the locking rod 43 is inserted into the locking groove and the locking hole 39, locking the outer mold shell 13. At this time, the vibrating rod 32 is engaged with the upper end of the steel frame 14, and the second hydraulic cylinder 10 stops extending. Then, the concrete is fed into the concrete ring distributor 41 through the concrete feeding pipe 11, and then the concrete is added into the space between the inner mold core 12 and the outer mold shell 13 through the concrete ring distributor 41. While adding concrete, the motor 29 is started, and the motor 29 drives the rotary block 30 to rotate. The rotary block 30 can drive the magnetic block 31 to rotate. When the magnetic block 31 approaches the knocking block 36, the magnetic effect can be used to attract the knocking block 36 to move and stretch the tension spring 35. Then, when the magnetic block 31 is away from the knocking block 36, under the tension of the tension spring 35, the knocking block 36 is pulled to move back and knock the vibration rod 32, causing the vibration rod 32 to vibrate. The vibration rod 32 can transmit the vibration to the steel skeleton 14, and the steel skeleton 14 can transmit the vibration to the concrete, so that the air in the concrete can be effectively discharged. When the amount of concrete added reaches the expected requirement, the concrete jacking pipe is initially formed and the concrete addition is stopped. Then the second hydraulic cylinder 10 is started to extend, driving the connecting column 40 to move downward. The downward movement of the connecting column 40 drives the slider 25 to move downward and press the pressure switch 26. The pressure switch 26 can start the first hydraulic cylinder 4 to extend. When the first hydraulic cylinder 4 extends, it can drive the two lower sealing shells 5 to move closer to each other. Then, the lower parts of the two lower sealing shells 5 are attached to the side walls of the placement seat 15, the upper parts of the two lower sealing shells 5 are attached to the side walls of the outer mold shell 13, and the upper sealing shell 6 is attached to the side walls of the inner mold core 12; Then, the steam from the steam boiler 22 is introduced into the space between the lower sealed shell 5 and the outer formwork 13 through the steam main pipe 37 and the steam branch pipe 38. The steam then slowly penetrates through the gap between the outer formwork 13 to the surface of the concrete jacking pipe, performing steam curing on the concrete jacking pipe. The steam then enters the inner side of the upper sealed shell 6 and is discharged through the exhaust pipe 16. When the exhausted steam enters the heat exchange pipe 17, the waste heat of the exhaust steam is recovered and utilized through the heat exchange pipe 17 and the spiral heat exchange plate 46, and the waste heat of the steam is used to preheat the cold water in the preheating cylinder 19. When the steam curing of the concrete jacking pipe is completed, the steam output is stopped, and then the second hydraulic cylinder 10 is started to contract, driving the connecting column 40 to move upward. The connecting column 40 first drives the slider 25 to move upward and away from the pressure touch switch 26, releasing the pressure on the pressure touch switch 26, and then the first hydraulic cylinder 4 automatically contracts, driving the lower sealing shell 5 and the upper sealing shell 6 to open, and then the connecting column 40 continues to drive the inner mold core 12 to move upward, and then the inner mold core 12 moves upward to drive the locking rod 43 to move out of the locking groove and the locking hole 39, releasing the lock on the outer mold shell 13, and then the connecting column 40 continues to move upward, and the slider 25 is used to pull the traction rope 27, and the outer mold shell 13 is pulled open by the traction rope 27, and then the formed concrete jacking pipe can be removed from the placement seat 15.

[0031] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A concrete energy-saving prefabricated forming device for shaft jacking, comprising a base (1), characterized in that: A placement seat (15) is fixed to the upper end of the base (1), a steel frame (14) is provided above the placement seat (15), an outer forming mechanism is provided at the upper end of the placement seat (15), a mounting frame (7) is fixed to the upper end of the base (1), a second hydraulic cylinder (10) is installed on the top of the mounting frame (7), the telescopic end of the second hydraulic cylinder (10) passes through the mounting frame (7) downward and is connected to the inner forming mechanism, two sealing mechanisms are provided at the upper end of the base (1), and the two sealing mechanisms are symmetrically arranged on both sides of the placement seat (15), a steam curing mechanism is provided on one side of the base (1), and a support column (2) is provided at the lower end of the base (1).

2. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 1 is characterized in that: The outer forming mechanism includes a fixing frame (44) fixedly connected to the upper end of the placement seat (15), a fixing shaft (50) is provided below the fixing frame (44), the upper end of the fixing shaft (50) is fixed to the inner top wall of the fixing frame (44), and the lower end of the fixing shaft (50) is fixed to the upper end of the placement seat (15), two outer formworks (13) are provided above the placement seat (15), the two outer formworks (13) are symmetrically arranged on both sides of the steel frame (14), and the outer formworks (13) are hinged to the fixing shaft (50) through a torsion hinge (45), a traction channel (48) is provided inside the fixing frame (44), and a traction rope (27) is provided inside the traction channel (48), one end of the traction rope (27) is fixedly connected to the two outer formworks (13), and the end of the traction rope (27) away from the outer formwork (13) first penetrates the placement seat (15) and the base (1) downwardly, and then penetrates the base (1) upwardly.

3. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 2, characterized in that: The inner forming mechanism includes an inner mold core (12), a concrete ring distributor (41) is mounted on the side wall of the inner mold core (12) near the upper end, and a concrete feeding pipe (11) is connected to the concrete ring distributor (41). The upper end of the inner mold core (12) is provided with a connecting column (40) movably connected to the inner mold core (12), a slider (25) is fixed on the side wall of the connecting column (40), a slide groove (8) is provided on the side wall of the mounting frame (7), the slider (25) slides inside the slide groove (8), the end of the traction rope (27) away from the outer mold shell (13) is fixedly connected to the lower end of the slider (25), a slide rod (9) is vertically provided on the slider (25), both ends of the slide rod (9) are fixed on the inner wall of the slide groove (8), a mounting cavity (28) is provided inside the inner mold core (12), and a vibration structure is provided inside the mounting cavity (28).

4. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 3, characterized in that: The sealing mechanism includes a fixed seat (3) fixed to the upper end of the base (1), a first hydraulic cylinder (4) is installed on the side wall of the fixed seat (3), a telescopic end of the first hydraulic cylinder (4) passes through the fixed seat (3) and is fixedly connected to a lower sealing shell (5), an upper sealing shell (6) is fixed to the upper end of the lower sealing shell (5), a pressure touch switch (26) is installed on the inner bottom wall of the slide groove (8), and the pressure touch switch (26) is electrically connected to the first hydraulic cylinder (4).

5. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 4, characterized in that: The steam curing mechanism includes a steam furnace (22), the steam furnace (22) is provided with a water inlet end (23) and a steam outlet end (24), a preheating tube (19) is provided above the steam furnace (22), a heat exchange tube (17) is provided inside the preheating tube (19), the two ends of the heat exchange tube (17) respectively pass through the upper and lower ends of the preheating tube (19), and the heat exchange tube (17) is fixedly connected to the preheating tube (19), the upper end of the heat exchange tube (17) is connected to the exhaust pipe (16), and the exhaust pipe (16) ) is connected to one of the upper sealing shells (6) at one end away from the heat exchange tube (17), the upper part of the side wall of the preheating tube (19) is connected to a water inlet pipe (18), the lower part of the side wall of the preheating tube (19) is connected to a water outlet pipe (20), the water outlet pipe (20) is connected to the water inlet end (23), the steam outlet end (24) is connected to a steam main pipe (37), the steam main pipe (37) is connected to two steam branch pipes (38), and the steam branch pipes (38) pass through the base (1) and the placement seat (15) upward.

6. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 2, characterized in that: Two redirecting wheels (47) are installed at the lower end of the base (1), and the traction rope (27) passes around the two redirecting wheels (47). Two guide wheels (49) are installed inside the traction channel (48), and the traction rope (27) passes around the guide wheels (49).

7. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 3, characterized in that: A fixing block (42) is fixed on the side wall of the inner mold core (12), and two locking rods (43) are fixed to the lower end of the fixing block (42). The upper ends of the two outer mold shells (13) are penetrated by locking grooves that cooperate with the locking rods (43), and the upper end of the placement seat (15) is provided with a locking socket (39) that cooperates with the two locking rods (43).

8. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 3, characterized in that: The vibration structure includes a driving member and two vibration members symmetrically arranged on both sides of the driving member, the driving member includes a motor (29) embedded in the top wall of the installation cavity (28), the output shaft of the motor (29) is fixed with a rotating block (30), and magnetic blocks (31) are fixed on the opposite side walls of the rotating block (30), the vibration member includes a mounting block (34) fixed on the top wall of the installation cavity (28), and a knocking block (36) is provided on the side wall of the mounting block (34) and is slidably connected to the mounting block (34). A tension spring (35) is sleeved on the knocking block (36), one end of the tension spring (35) is fixed on the mounting block (34), and the other end of the tension spring (35) is fixed on the knocking block (36). A vibration rod (32) is provided on the inner wall of the mounting cavity (28) and is slidably connected to the inner wall of the mounting cavity (28). A spring (33) is sleeved on the vibration rod (32), one end of the spring (33) is fixed on the inner wall of the mounting cavity (28), and the other end of the spring (33) is fixed on the vibration rod (32).

9. The energy-saving prefabricated concrete forming device for shaft jacking according to claim 5, characterized in that: A spiral heat exchange plate (46) is fixedly sleeved on the side wall of the heat exchange tube (17), and the spiral heat exchange plate (46) is located inside the preheating cylinder (19). The lower end of the heat exchange tube (17) is connected to a filter (21).

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