An adjustable jacking device for tunnel construction

Abstract

The present invention provides an adjustable jacking device for tunnel construction, comprising a hollow metal fixing seat, a hydraulic cylinder, an outer connecting bracket structure, a mounting flange, a hollow metal feed seat, an extension fixing seat, an angle adjustment frame structure, a horizontal indicator frame structure, a vertical mounting seat, a central laser receiver, and a ring-shaped laser receiver. The hydraulic cylinders are provided in plurality and are bolted to the front and rear ends of the left side of the hollow metal fixing seat; the outer connecting bracket structure is mounted on the outside of the hydraulic cylinder. The provision of the laser emitter and transparent protective mirror in the present invention facilitates irradiating the laser light emitted by the laser emitter to the left side of the central laser receiver, thereby ensuring the relative position of the hollow metal fixing seat and the hollow metal feed seat, and preventing relative offset between the hollow metal fixing seat and the hollow metal feed seat, which could affect the accuracy of tunnel construction feeding.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction jacking, and in particular relates to an adjustable jacking device for tunnel construction. Background Art

[0002] Tunnel engineering is a series of construction tasks carried out during the construction of underground, underwater, or mountain structures (for example, railway and highway construction). It primarily involves tunnel planning, surveying, design, penetration control surveying, and construction. Tunnels can be categorized according to their location into three main types: mountain tunnels, underwater tunnels, and urban tunnels. Mountain tunnels are the most commonly constructed. The shield tunneling method is a fully mechanized form of tunneling. A shield machine is thrust underground, with the shield casing and segments supporting the surrounding rock to prevent collapse into the tunnel. Simultaneously, a cutting device is used to excavate soil in front of the excavation face. The excavation is then transported out of the tunnel by excavation machinery, where it is then pressurized and pushed forward by jacks. Precast concrete segments are then assembled.

[0003] However, the existing tunnel construction jacking device still has problems such as easy tilting during the jacking process, affecting the construction quality of the tunnel, the inclination angle cannot be accurately determined during tilting construction, and the hydraulic cylinder is easily damaged after being installed alone.

[0004] Therefore, it is very necessary to invent a controllable jacking device for tunnel construction. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an adjustable jacking device for tunnel construction, wherein the present invention is achieved through the following technical solutions:

[0006] A controllable jacking device for tunnel construction includes a hollow metal fixing seat, a hydraulic cylinder, an outer connecting support structure, a mounting flange, a hollow metal feed seat, an extension fixing seat, an angle adjustment frame structure, a horizontal indicator frame structure, a vertical mounting seat, a central laser receiver and a ring laser receiver. The hydraulic cylinder is provided in plurality and is respectively bolted to the front and rear ends of the left side of the hollow metal fixing seat; the outer connecting support structure is installed on the outside of the hydraulic cylinder; the mounting flange is bolted to the left side of the output rod of the hydraulic cylinder; the hollow metal feed seat is arranged on the left side of the hydraulic cylinder; the extension fixing seat is bolted to the upper right part of the inner side of the hollow metal feed seat; the angle adjustment frame structure is installed at the lower part of the extension fixing seat; the horizontal indicator frame structure is arranged at the front end of the angle adjustment frame structure; the vertical mounting seat is bolted to the upper left part of the inner side of the hollow metal fixing seat; the central laser receiver and the ring laser receiver are respectively embedded in the inner left side of the vertical mounting seat.

[0007] Preferably, the mounting flange is bolted to the front and rear ends of the right side of the hollow metal feed seat respectively.

[0008] Preferably, the central laser receiver is located in the middle of the ring laser receiver.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. In the present invention, the arrangement of the fixed horizontal plate and the central connecting shaft facilitates the installation of the laser positioning frame structure, so that the laser positioning frame structure is located at the upper right portion of the inner side of the hollow metal feed seat.

[0011] 2. In the present invention, the arrangement of the semicircular connecting plate and arcuate chute facilitates the use of the locking bolt to adjust the tilt of the right side of the connecting crossbar, thereby correcting the relative position between the hollow metal fixing seat and the hollow metal feed seat, so that the center lines of the hollow metal fixing seat and the hollow metal feed seat are on the same horizontal line.

[0012] 3. In the present invention, the arrangement of the connecting crossbar and the positioning circular hole facilitates fixing the left side of the connecting crossbar at the inner center of the semicircular connecting plate, while allowing the right side of the connecting crossbar to swing up and down, thereby improving the positioning accuracy of the connecting crossbar.

[0013] 4. In this invention, the arrangement of the laser emitter and the transparent protective mirror facilitates directing the laser light emitted by the laser emitter to the left of the central laser receiver, thereby ensuring the relative positioning of the hollow metal fixing base and the hollow metal feed base, and preventing relative offset between the hollow metal fixing base and the hollow metal feed base, which could affect feed accuracy during tunnel construction.

[0014] 5. In the present invention, the arrangement of the locking bolt and the tilting pointer facilitates the coordination with the scale lines engraved on the surface of the semicircular connecting plate, ensuring the horizontal movement of the hollow metal feed seat and preventing the left side of the hollow metal feed seat from moving up and down.

[0015] 6. In this invention, the arrangement of the vertical mounting base, central laser receiver, and annular laser receiver facilitates the reception of laser beams emitted by the laser transmitter. When laser light strikes the left side of the annular laser receiver, an external alarm can be used to notify personnel that the hollow metal feed base has shifted.

[0016] 7. In the present invention, the arrangement of the metal connecting shell and the horizontal plunger facilitates the installation of the horizontal plunger and cooperates with the central connecting shaft to ensure that the horizontal plunger is always in a horizontal position.

[0017] 8. In this invention, the arrangement of the vertical connecting pins, rectangular counterweight plate, and threaded baffle increases the weight of the lower center of the metal connecting shell. This, through the influence of the center of gravity of the lower metal connecting shell, ensures that the metal connecting shell remains in a horizontal position, thereby accurately determining the tilt angle of the hollow metal feed seat relative to the horizontal plane.

[0018] 9. In the present invention, the arrangement of the outer mounting tube, oil inlet and outlet grooves, and end surface connecting plates facilitates protection of the hydraulic cylinder and external oil pipes. It also allows for the connection of multiple hydraulic cylinders, ensuring horizontal movement of the hollow metal feed seat.

[0019] 10. In the present invention, the arrangement of the L-shaped support rod, the left-leaning I-beam frame, and the right-leaning I-beam frame helps to increase the structural strength between the outer mounting tube and the end connection plate, and facilitates the lifting and movement of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a structural schematic diagram of the angle adjustment frame structure of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the laser positioning frame structure of the present invention.

[0023] Figure 4 It is a structural schematic diagram of the horizontal indicator frame structure of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the outer connecting bracket structure of the present invention.

[0025] In the picture:

[0026] 1. Hollow metal fixing seat; 2. Hydraulic cylinder; 3. Outer connecting bracket structure; 31. Outer mounting pipe; 32. Oil inlet and outlet groove; 33. End connecting plate; 34. L-shaped support rod; 35. Left-leaning I-beam frame; 36. Right-leaning I-beam frame; 4. Mounting flange; 5. Hollow metal feed seat; 6. Extension fixing seat; 7. Angle adjustment frame structure; 71. Fixed cross plate; 72. Semicircular connecting plate; 73. Arc chute; 74. Center connecting shaft ;75. Laser positioning frame structure;751. Connecting cross bar;752. Positioning circular hole;753. Locking bolt;754. Laser transmitter;755. Transparent protective mirror;756. Tilt pointer;8. Horizontal indicator frame structure;81. Metal connecting shell;82. Horizontal injection;83. Vertical connecting needle;84. Rectangular counterweight hole plate;85. Threaded baffle;9. Vertical mounting seat;10. Center laser receiver;11. Ring laser receiver. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Example:

[0029] As attached Figure 1 and attached Figure 2 As shown, an adjustable jacking device for tunnel construction includes a hollow metal fixing seat 1, a hydraulic cylinder 2, an outer connecting bracket structure 3, a mounting flange 4, a hollow metal feed seat 5, an extension fixing seat 6, an angle adjustment frame structure 7, a horizontal indicator frame structure 8, a vertical mounting seat 9, a central laser receiver 10 and a ring laser receiver 11. The hydraulic cylinder 2 is provided with multiple ones, which are respectively bolted to the front and rear ends of the left side of the hollow metal fixing seat 1; the outer connecting bracket structure 3 is installed on the outside of the hydraulic cylinder 2; the mounting flange 4 is bolted to the left side of the output rod of the hydraulic cylinder 2; the hollow metal feed seat 5 is arranged on the left side of the hydraulic cylinder 2; the extension fixing seat 6 is bolted to the upper right part of the inner side of the hollow metal feed seat 5; the angle adjustment frame structure 7 is installed at the lower part of the extension fixing seat 6; the horizontal indicator frame structure 8 is arranged at the front end of the angle adjustment frame structure 7; the vertical The straight mounting seat 9 is bolted to the upper left part of the inner side of the hollow metal fixing seat 1; the central laser receiver 10 and the ring laser receiver 11 are respectively embedded in the inner left side of the vertical mounting seat 9; the angle adjustment frame structure 7 includes a fixed horizontal plate 71, a semicircular connecting plate 72, an arc-shaped slide groove 73, a central connecting shaft 74 and a laser positioning frame structure 75, and the semicircular connecting plate 72 is integrated at the front and rear ends of the lower part of the fixed horizontal plate 71; the arc-shaped slide groove 73 is opened at the lower inner part of the semicircular connecting plate 72; the central connecting shaft 74 is inserted in the upper center position of the semicircular connecting plate 72; the laser positioning frame structure 75 is installed on the upper right part of the inner side of the semicircular connecting plate 72; the fixed horizontal plate 71 is bolted to the lower part of the extended fixing seat 6, loosen the parts on the inner side of the laser positioning frame structure 75, cooperate with the arc-shaped slide groove 73, and adjust the right side position of the laser positioning frame structure 75.

[0030] As attached Figure 3As shown, in the above embodiment, specifically, the laser positioning frame structure 75 includes a connecting cross bar 751, a positioning circular hole 752, a locking bolt 753, a laser emitter 754, a transparent protective mirror 755 and a tilt pointer 756, the positioning circular hole 752 is opened on the left side of the connecting cross bar 751; the locking bolt 753 is threadedly connected to the right side of the front end of the connecting cross bar 751; the laser emitter 754 is bolted to the right side of the connecting cross bar 751; the transparent protective mirror 755 is glued to the right side of the laser emitter 754; the tilt pointer 756 is glued to the middle position on the left side of the laser emitter 754; the laser emitter 754 emits a light beam to illuminate the left side of the central laser receiver 10, at this time the hollow metal fixing seat 1 and the hollow metal feed seat 5 are completely horizontally arranged, when the light beam is irradiated on the left side of the annular laser receiver 11, the annular laser receiver 11 cooperates with the external alarm to emit a sound.

[0031] As attached Figure 4 As shown, in the above embodiment, specifically, the horizontal indicator frame structure 8 includes a metal connecting shell 81, a horizontal injection nozzle 82, a vertical connecting needle 83, a rectangular counterweight hole plate 84 and a threaded baffle 85, and the horizontal injection nozzle 82 is embedded in the front end of the metal connecting shell 81; the vertical connecting needle 83 is threadedly connected to the lower middle position of the metal connecting shell 81; the rectangular counterweight hole plate 84 is sleeved on the outside of the vertical connecting needle 83; the threaded baffle 85 is threadedly connected to the lower part of the outer side of the vertical connecting needle 83; the rectangular counterweight hole plate 84 and the threaded baffle 85 cooperate to increase the weight of the lower part of the vertical connecting needle 83, so that the center of gravity of the metal connecting shell 81 is located in the lower middle position, and cooperate with the axial connection between the metal connecting shell 81 and the center connecting shaft 74 to make the horizontal injection nozzle 82 always in a horizontal position.

[0032] As attached Figure 5 As shown, in the above embodiment, specifically, the outer connecting bracket structure 3 includes an outer mounting tube 31, an oil passage inlet and outlet groove 32, an end connecting plate 33, an L-shaped support rod 34, a left-leaning I-shaped frame 35 and a right-leaning I-shaped frame 36, and the oil passage inlet and outlet groove 32 are respectively opened at the front and rear ends of the inner side of the outer mounting tube 31; the end connecting plates 33 are respectively welded to the left and right sides of the outer side of the outer mounting tube 31; the L-shaped support rod 34 is welded to the four corners of the inner side of the end connecting plate 33; the left-leaning I-shaped frame 35 and the right-leaning I-shaped frame 36 are respectively welded between the L-shaped support rod 34 and the outer mounting tube 31; the outer mounting tube 31 and the end connecting plate 33 have a protective effect on the hydraulic cylinder 2, and the two adjacent outer mounting tubes 31 are connected together by the L-shaped support rod 34, and the left-leaning I-shaped frame 35 and the right-leaning I-shaped frame 36 reinforce the inner side.

[0033] In the above embodiment, specifically, the fixed transverse plate 71 is bolted to the lower portion of the extended fixing seat 6 to fix the position of the fixed transverse plate 71 .

[0034] In the above embodiment, specifically, scale lines are engraved around the front end of the semicircular connecting plate 72 to improve the adjustment accuracy.

[0035] In the above embodiment, specifically, the connecting cross bar 751 is provided at the upper right portion of the inner side of the semicircular connecting plate 72 .

[0036] In the above embodiment, specifically, the central connecting shaft 74 is inserted into the inner side of the positioning circular hole 752 to fix the left side of the connecting cross bar 751 .

[0037] In the above embodiment, specifically, the left side of the tilt pointer 756 is located on the right side of the front end of the semicircular connecting disk 72, and cooperates with the scale line on the front end of the semicircular connecting disk 72 to determine the tilt angle of the connecting cross bar 751.

[0038] In the above embodiment, specifically, the locking bolt 753 passes through the inner side of the arc-shaped sliding groove 73 and plays a fixing role after being tightened.

[0039] In the above embodiment, specifically, the locking bolt 753 is provided at the front end of the semicircular connecting plate 72 .

[0040] In the above embodiment, specifically, the tilt pointer 756 is located on the right side of the locking bolt 753 so that they do not affect each other.

[0041] In the above embodiment, specifically, the metal connection shell 81 is located at the front end of the semicircular connection plate 72 .

[0042] In the above embodiment, specifically, the rear end center position of the metal connection shell 81 is axially connected to the front end of the central connection shaft 74, which fixes the metal connection shell 81 while ensuring that the metal connection shell 81 can rotate.

[0043] In the above embodiment, specifically, the rectangular counterweight hole plate 84 is provided on the upper portion of the threaded baffle 85 to increase the center of gravity of the middle position of the lower portion of the metal connecting shell 81 .

[0044] In the above embodiment, specifically, the rectangular counterweight hole plate 84 is located at the front end of the semicircular connecting plate 72 .

[0045] In the above embodiment, specifically, the laser emitter 754 is located at the upper right side of the semicircular connecting disk 72, and the lower portion of the vertical connecting needle 83 is configured to be conical.

[0046] In the above embodiment, specifically, the hydraulic cylinder 2 is bolted to the inner side of the outer mounting tube 31 .

[0047] In the above embodiment, specifically, the L-shaped support rods 34 are respectively arranged at the four outer corners of the outer mounting tube 31 .

[0048] In the above embodiment, specifically, a plurality of the left-leaning I-shaped frames 35 and the right-leaning I-shaped frames 36 are provided, and the left-leaning I-shaped frames 35 and the right-leaning I-shaped frames 36 are arranged at intervals.

[0049] How it works

[0050] In the present invention, when in use, the fixed horizontal plate 71 is bolted to the lower part of the extended fixing seat 6, the locking bolt 753 is loosened, the positioning circular hole 752 cooperates with the central connecting shaft 74, the left side of the connecting crossbar 751 is fixed, and the locking bolt 753 slides on the inner side of the arc-shaped slide groove 73, and the position of the laser emitter 754 is adjusted to make the laser emitter 754 in a horizontal position. Then the laser emitter 754 emits a light beam to illuminate the left side of the central laser receiver 10. At this time, the hollow metal fixing seat 1 and the hollow metal feed seat 5 are completely horizontally set. When the light beam illuminates the left side of the annular laser receiver 11, the annular laser receiver 11 cooperates with the external alarm to sound, reminding the staff of the hollow metal fixing seat 1 and the hollow metal feed seat 5, a relative offset occurs between them, and the output rod of the hydraulic cylinder 2 pushes the hollow metal feed seat 5 to the left progressively through the mounting flange 4. At the same time, the outer mounting tube 31 and the end connecting plate 33 have a protective effect on the hydraulic cylinder 2, and the two adjacent outer mounting tubes 31 are connected together by the L-shaped support rod 34. The left-leaning I-beam 35 and the right-leaning I-beam 36 reinforce the inner side to improve the impact resistance. The rectangular counterweight hole plate 84 and the threaded baffle 85 cooperate to increase the weight of the lower part of the vertical connecting needle 83, so that the center of gravity of the metal connecting shell 81 is located in the middle position of the lower part, and the axial connection between the metal connecting shell 81 and the center connecting shaft 74 is cooperated to make the horizontal injection 82 always in a horizontal position, which can accurately locate the inclination angle of the hollow metal feed seat 5 relative to the horizontal plane.

[0051] Utilizing the technical solution described in the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above technical effects, all fall within the scope of protection of the present invention.

Claims

1. An adjustable jacking device for tunnel construction, characterized in that: The adjustable tunnel construction jacking device comprises a hollow metal fixing seat (1), a hydraulic cylinder (2), an outer connecting bracket structure (3), a mounting flange (4), a hollow metal feed seat (5), an extension fixing seat (6), an angle adjustment frame structure (7), a horizontal indication frame structure (8), a vertical mounting seat (9), a central laser receiver (10) and a ring laser receiver (11), wherein the hydraulic cylinder (2) is provided with two rows, which are respectively bolted to the front and rear ends of the left side of the hollow metal fixing seat (1); the outer connecting bracket structure (3) is mounted on the outside of the hydraulic cylinder (2); the mounting flange (4) is bolted to the On the left side of the output rod of the hydraulic cylinder (2); the hollow metal feed seat (5) is arranged on the left side of the hydraulic cylinder (2); the extended fixing seat (6) is bolted to the upper right part of the inner side of the hollow metal feed seat (5); the angle adjustment frame structure (7) is installed at the lower part of the extended fixing seat (6); the horizontal indication frame structure (8) is arranged at the front end of the angle adjustment frame structure (7); the vertical mounting seat (9) is bolted to the upper left part of the inner side of the hollow metal fixing seat (1); the central laser receiver (10) and the ring laser receiver (11) are respectively embedded in the inner left side of the vertical mounting seat (9); the angle The regulating frame structure (7) includes a fixed horizontal plate (71), a semicircular connecting plate (72), an arc-shaped slide groove (73), a central connecting shaft (74) and a laser positioning frame structure (75), wherein the semicircular connecting plate (72) is integrally arranged at the front and rear ends of the lower part of the fixed horizontal plate (71); the arc-shaped slide groove (73) is opened at the inner lower part of the semicircular connecting plate (72); the central connecting shaft (74) is plugged into the upper center position of the semicircular connecting plate (72); the laser positioning frame structure (75) includes a connecting cross bar (751), a positioning circular hole (752), a locking bolt (753), a laser emitter ( 754), a transparent protective mirror (755) and a tilt pointer (756), the positioning circular hole (752) is opened on the left side of the connecting cross bar (751); the locking bolt (753) is threadedly connected to the right side of the front end of the connecting cross bar (751); the laser emitter (754) is bolted to the right side of the connecting cross bar (751); the transparent protective mirror (755) is glued to the right side of the laser emitter (754); the tilt pointer (756) is glued to the middle position of the left side of the laser emitter (754); the left side of the connecting cross bar (751) is set at the upper right part of the inner side of the semicircular connecting plate (72).

2. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The horizontal indicator frame structure (8) includes a metal connecting shell (81), a horizontal injection (82), a vertical connecting needle (83), a rectangular counterweight hole plate (84) and a threaded baffle (85), wherein the horizontal injection (82) is embedded in the front end of the metal connecting shell (81); the vertical connecting needle (83) is threadedly connected to the middle position of the lower part of the metal connecting shell (81); the rectangular counterweight hole plate (84) is sleeved on the outer side of the vertical connecting needle (83); and the threaded baffle (85) is threadedly connected to the lower part of the outer side of the vertical connecting needle (83).

3. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The outer connecting bracket structure (3) comprises an outer mounting tube (31), an oil passage inlet and outlet groove (32), an end surface connecting plate (33), an L-shaped support rod (34), a left-leaning I-shaped frame (35) and a right-leaning I-shaped frame (36). The oil passage inlet and outlet groove (32) is respectively opened at the front and rear ends of the inner side of the outer mounting tube (31); the end surface connecting plate (33) is respectively welded to the left and right sides of the outer side of the outer mounting tube (31); the L-shaped support rod (34) is welded to the four corners of the inner side of the end surface connecting plate (33); and the left-leaning I-shaped frame (35) and the right-leaning I-shaped frame (36) are respectively welded between the L-shaped support rod (34) and the outer mounting tube (31).

4. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The fixed transverse plate (71) is bolted to the lower part of the extended fixed seat (6), and scale lines are engraved around the front end of the semicircular connecting plate (72).

5. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The connecting cross bar (751) is arranged on the upper right portion of the inner side of the semicircular connecting plate (72), and the central connecting shaft (74) is inserted into the inner side of the positioning circular hole (752).

6. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The left side of the tilt pointer (756) is located on the right side of the front end of the semicircular connecting plate (72), and the locking bolt (753) passes through the inner side of the arc-shaped sliding groove (73).

7. The adjustable tunnel construction jacking device according to claim 1, characterized in that: The locking bolt (753) is arranged at the front end of the semicircular connecting plate (72), and the tilt pointer (756) is located on the right side of the locking bolt (753).

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