Tunnel excavation device for preventing gravel from falling

Abstract

The present invention relates to the field of tunnel excavation, and in particular to a tunnel excavation device for preventing gravel from falling. The tunnel excavation device for preventing gravel from falling comprises an outer frame, an annular frame, a hydraulic cylinder, a support block, a splicing plate, an inner plate, an outer sleeve plate, an adsorption mechanism, a driving mechanism, an electric push rod, a support plate, an inner ring and a fixing plate. An annular frame is provided on one side of the outer frame, and hydraulic cylinders are symmetrically fixedly installed at equal distances and angles inside the annular frame. The tunnel excavation device for preventing gravel from falling provided by the present invention can sequentially adsorb the splicing plates for splicing and assembly through the cooperation of the adsorption mechanism and the driving mechanism, so that it is convenient to splice inside the tunnel during tunnel excavation, fit and support the inner wall of the tunnel, and support the inner wall of the tunnel, so as to avoid the scattering of gravel or collapse during tunnel excavation, which may cause equipment damage and tunnel blockage, reduce the probability of accidents, and improve the safety during tunnel excavation.

Description

Technical Field

[0001] The invention relates to the field of tunnel excavation, and in particular to a tunnel excavation device capable of preventing broken stones from falling. Background Art

[0002] When excavating a tunnel, due to the presence of rocks or rubble underground, it is easy for the inner wall of the tunnel to lack support, causing rubble to fall and collapse, affecting the safety of construction workers, and easily causing equipment damage and losses, reducing the efficiency of tunnel excavation construction, and easily blocking the tunnel during excavation, making tunnel excavation construction inconvenient.

[0003] Therefore, it is necessary to provide a new tunnel excavation device for preventing gravel from falling to solve the above technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a tunnel excavation device capable of preventing gravel from falling.

[0005] The tunnel excavation device for preventing gravel from falling provided by the present invention comprises: an outer frame, an annular frame, a hydraulic cylinder, a supporting block, a splicing plate, an inner plate, an outer plate, an adsorption mechanism, a driving mechanism, an electric push rod, a supporting plate, an inner ring and a fixing plate. An annular frame is provided on one side of the outer frame. Hydraulic cylinders are symmetrically and fixedly installed inside the annular frame at equal distances and angles. One end of each hydraulic cylinder is fixedly connected to the outer frame. Supporting blocks are equidistantly and angularly provided on a side of the annular frame away from the outer frame. Output ends of each hydraulic cylinder are fixedly connected to corresponding supporting blocks. The splicing plates are equidistantly and angularly arranged on one side of the annular frame, and the supporting blocks are in compression contact with adjacent splicing plates. The inner plate is fixedly connected inside the annular frame. Electric push rods are symmetrically and fixedly installed inside the inner plate. The outer plate is arranged on one side of the annular frame. An inner ring is rotatably connected inside the outer plate. A supporting plate is fixedly connected inside the inner ring. A fixing plate is symmetrically and fixedly connected to the inner wall at the top of the inner ring. Output ends of each electric push rod are fixedly connected to the supporting plate. The adsorption mechanism is arranged on the outer side of the outer plate. The driving mechanism is arranged between the annular frame and the outer plate.

[0006] Preferably, the adsorption mechanism includes a fixed block, a lifting cylinder, a connecting frame, a connecting rod, an arc frame, a fixed sleeve, a pneumatic suction cup and an air connecting pipe. Fixed blocks are fixedly connected on both sides of the outer sleeve plate, and a lifting cylinder is fixedly installed inside the fixed block. A connecting frame is provided at the bottom of the outer sleeve plate, and the output ends of the lifting cylinders are fixedly connected to the connecting frames. A connecting rod is fixedly connected to the bottom of the connecting frame, and an arc frame is fixedly connected to the bottom of the connecting rod. Fixed sleeves are equidistantly fixed on both sides of the arc frame, an air connecting pipe is slidably inserted on the top of the fixed sleeve, and a pneumatic suction cup is fixedly connected to the bottom of the air connecting pipe.

[0007] Preferably, the driving mechanism includes a rotating shaft, a driving motor, a receiving hole, a gear and an annular rack. The inner plate is rotatably connected to the rotating shaft, and one end of the rotating shaft is rotatably connected to a fixed plate. A driving motor is fixedly installed on one side of the inner plate, and the output end of the driving motor is fixedly connected to an end corresponding to the rotating shaft. A receiving hole is provided on the top of the inner ring, and a gear is fixedly mounted on the outer side of the rotating shaft between the fixed plates. An annular rack is embedded and fixed in the outer sleeve plate, and the gear is meshingly connected to the annular rack.

[0008] Preferably, support columns are fixedly connected between the outer frame and the annular frame at equal distances and angles.

[0009] Preferably, a protective shell is fixedly connected to one side of the inner plate close to the outer frame.

[0010] Preferably, circular holes are symmetrically opened on the outer sides of the splicing plates.

[0011] Preferably, mounting holes are provided on one side of the outer frame at equal distances and angles.

[0012] Preferably, a sleeve is fixedly connected inside the inner plate, a sliding rod is slidably inserted inside the sleeve, and one end of the sliding rod is fixedly connected to the support plate.

[0013] Preferably, one side of the splicing plate begins to have a strip groove, and the other side of the splicing plate is provided with a raised strip, and the strip grooves are matched with the corresponding raised strips.

[0014] Preferably, nuts are threadedly connected to the outer sides of the air connecting pipes, and the bottoms of the nuts are rotatably connected to the corresponding fixing sleeves.

[0015] Compared with the related art, the tunnel excavation device for preventing gravel from falling provided by the present invention has the following beneficial effects:

[0016] The present invention provides a tunnel excavation device for preventing gravel from falling. Through the cooperation of an adsorption mechanism and a driving mechanism, splicing plates can be adsorbed in sequence for splicing and assembly, so that when tunnel excavation is carried out, the splicing plates can be conveniently connected inside the tunnel to fit and support the inner wall of the tunnel, thereby preventing gravel from scattering or collapsing during tunnel excavation, thereby preventing damage to equipment and blocking of the tunnel, reducing the probability of accidents, and improving safety during tunnel excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a tunnel excavation device for preventing gravel from falling provided by the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of the annular frame shown;

[0019] Figure 3 for Figure 1 The structural schematic diagram of the driving motor shown;

[0020] Figure 4 for Figure 1 The schematic diagram of the structural disassembly of the outer sleeve plate and the inner ring is shown;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the adsorption mechanism shown;

[0022] Figure 6 for Figure 1 The structural schematic diagram of the arc frame shown;

[0023] Figure 7 for Figure 1 Schematic diagram of the structure of the splicing plate shown.

[0024] Numbers in the figure: 1. Outer frame; 2. Annular frame; 3. Hydraulic cylinder; 4. Support block; 5. Splicing plate; 6. Inner plate; 7. Outer plate; 8. Adsorption mechanism; 9. Driving mechanism; 10. Electric push rod; 11. Support plate; 12. Inner ring; 13. Fixed plate; 14. Support column; 15. Protective shell; 16. Round hole; 17. Mounting hole; 18. Sleeve; 19. Sliding rod; 20. Raised strip; 21. Strip groove; 81. Fixed block; 82. Lifting cylinder; 83. Connecting frame; 84. Connecting rod; 85. Arc frame; 86. Fixed sleeve; 87. Pneumatic suction cup; 88. Air pipe; 89. Nut; 91. Rotating shaft; 92. Driving motor; 93. Receiving hole; 94. Gear; 95. Annular rack. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] See also Figures 1 to 7The embodiment of the present invention provides a tunnel excavation device for preventing gravel from falling, and the tunnel excavation device for preventing gravel from falling comprises: an outer frame 1, an annular frame 2, a hydraulic cylinder 3, a support block 4, a splicing plate 5, an inner plate 6, an outer plate 7, an adsorption mechanism 8, a driving mechanism 9, an electric push rod 10, a support plate 11, an inner ring 12 and a fixing plate 13. An annular frame 2 is provided on one side of the outer frame 1, and hydraulic cylinders 3 are symmetrically fixedly installed inside the annular frame 2 at equal distances and angles, and one end of the hydraulic cylinders 3 is fixedly connected to the outer frame 1, and support blocks 4 are equidistantly and angularly provided on the side of the annular frame 2 away from the outer frame 1, and the output ends of the hydraulic cylinders 3 are fixedly connected to the corresponding support blocks 4 The splicing plates 5 are equidistant and angularly arranged on one side of the annular frame 2, and the supporting blocks 4 are in squeeze contact with the adjacent splicing plates 5, the inner plate 6 is fixedly connected to the inside of the annular frame 2, and the electric push rods 10 are symmetrically and equidistantly fixedly installed inside the inner plate 6, the outer plate 7 is arranged on one side of the annular frame 2, and the inner ring 12 is rotatably connected inside the outer plate 7, and the support plate 11 is fixedly connected inside the inner ring 12, and the fixing plates 13 are symmetrically fixedly connected to the inner wall of the top of the inner ring 12, and the output ends of the electric push rods 10 are fixedly connected to the support plate 11, the adsorption mechanism 8 is installed on the outside of the outer plate 7, and the driving mechanism 9 is installed between the annular frame 2 and the outer plate 7.

[0028] It should be noted that: through the cooperation of the adsorption mechanism 8 and the driving mechanism 9, the splicing plates 5 can be adsorbed in sequence for splicing and assembly, which is convenient for splicing inside the tunnel during tunnel excavation, fitting and supporting the inner wall of the tunnel, supporting the inner wall of the tunnel, avoiding the scattering of gravel or collapse during tunnel excavation, causing equipment damage and tunnel blockage, reducing the probability of accidents and improving the safety during tunnel excavation.

[0029] In the embodiments of the present invention, please refer to Figure 5 and Figure 6 The adsorption mechanism 8 includes a fixed block 81, a lifting cylinder 82, a connecting frame 83, a connecting rod 84, an arc frame 85, a fixed sleeve 86, a pneumatic suction cup 87 and an air connection pipe 88. The fixed blocks 81 are fixedly connected on both sides of the outer sleeve 7. The lifting cylinder 82 is fixedly installed inside the fixed block 81. A connecting frame 83 is provided at the bottom of the outer sleeve 7. The output ends of the lifting cylinder 82 are fixedly connected to the connecting frame 83. The bottom of the connecting frame 83 is fixedly connected to the connecting rod 84. The bottom of the connecting rod 84 is fixedly connected to the arc frame 85. The fixed sleeves 86 are equidistantly sleeved and fixed on both sides of the arc frame 85. The top of the fixed sleeve 86 is slidably plugged with an air connection pipe 88, and the bottom of the air connection pipe 88 is fixedly connected with a pneumatic suction cup 87.

[0030] It should be noted that: when the lifting cylinder 82 is driven, the arc frame 85 at the bottom of the connecting frame 83 is driven to descend, so that the pneumatic suction cup 87 contacts the splicing plate 5, and the splicing plate 5 is sucked up by the pneumatic suction cup 87, and the splicing plate 5 is driven to rise by the lifting cylinder 82;

[0031] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 The driving mechanism 9 includes a rotating shaft 91, a driving motor 92, a receiving hole 93, a gear 94 and an annular rack 95. The rotating shaft 91 is rotatably connected inside the inner plate 6, and one end of the rotating shaft 91 is rotatably connected to the fixing plate 13. A driving motor 92 is fixedly installed on one side of the inner plate 6, and the output end of the driving motor 92 is fixedly connected to the corresponding end of the rotating shaft 91. A receiving hole 93 is opened on the top of the inner ring 12. The outer side of the rotating shaft 91 is sleeved and fixed with a gear 94 between the fixing plates 13. An annular rack 95 is embedded and fixed inside the outer sleeve plate 7, and the gear 94 is meshed and connected with the annular rack 95.

[0032] It should be noted that the rotating shaft 91 can be driven to rotate by the driving motor 92, and the outer sleeve plate 7 can be rotated by the gear 94 of the rotating shaft 91 driving the annular rack 95 to adjust the position of the splicing plate 5 adsorbed by the pneumatic suction cup 87 on the arc frame 85;

[0033] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 , support columns 14 are fixedly connected between the outer frame 1 and the annular frame 2 at equal distances and angles;

[0034] It should be noted that: the outer frame 1 and the annular frame 2 are made more firm and stable;

[0035] In the embodiments of the present invention, please refer to Figure 3 , a protective shell 15 is fixedly connected to one side of the inner plate 6 close to the outer frame 1;

[0036] It should be noted that: the internal drive motor 92 can be protected;

[0037] In the embodiments of the present invention, please refer to Figure 1 and Figure 7 , the outer sides of the splicing plates 5 are symmetrically provided with circular holes 16;

[0038] It should be noted that: it is convenient to strengthen the firmness and stability of the splicing plate 5 by inserting steel bars or other components;

[0039] In the embodiments of the present invention, please refer to Figure 1 and Figure 2, mounting holes 17 are provided at equal distances and angles on one side of the outer frame 1;

[0040] It should be noted that: it is convenient to connect and install the outer frame 1 with other components;

[0041] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The inner plate 6 is fixedly connected with a sleeve 18, and a slide rod 19 is slidably inserted in the sleeve 18, and one end of the slide rod 19 is fixedly connected with the support plate 11;

[0042] It should be noted that: the support plate 11 is made more stable when moving;

[0043] In the embodiments of the present invention, please refer to Figure 1 and Figure 7 , one side of the splicing plate 5 begins to have a strip groove 21, and the other side of the splicing plate 5 is provided with a raised strip 20, and the strip groove 21 is matched with the corresponding raised strip 20;

[0044] It should be noted that the splicing plates 5 can be spliced ​​into a ring shape through the protruding strips 20 and the strip grooves 21, which makes the splicing more stable and firm;

[0045] In the embodiments of the present invention, please refer to Figure 5 and Figure 6 The outer sides of the air connection pipes 88 are all threadedly connected with nuts 89, and the bottoms of the nuts 89 are rotatably connected with the corresponding fixing sleeves 86;

[0046] It should be noted that the horizontal height between the pneumatic suction cups 87 on the arc frame 85 can be conveniently adjusted by screwing the nut 89, so that the pneumatic suction cups 87 can adsorb the splicing plate 5 more firmly.

[0047] The working principle of the tunnel excavation device for preventing gravel from falling provided by the present invention is as follows: through the cooperation of the adsorption mechanism 8 and the driving mechanism 9, the splicing plates 5 can be adsorbed in sequence for splicing and assembly, so that when tunnel excavation is carried out, the splicing plates 5 can be attached to the inside of the tunnel, fit the inner wall of the tunnel, and support the inner wall of the tunnel, so as to avoid the scattering of gravel or collapse during tunnel excavation, thereby causing equipment damage and tunnel blockage, reducing the probability of accidents, and improving the safety during tunnel excavation. When tunnel excavation is carried out, one side of the outer frame 1 can be connected to the cutter head. When the cutter head is excavating, when the lifting cylinder 82 is driven, the arc frame 85 at the bottom of the connecting frame 83 is driven to descend, so that the pneumatic suction cup 87 is in contact with the splicing plate 5, and the splicing plate 5 is adsorbed by the pneumatic suction cup 87, and the splicing plate 5 is driven to rise again by the lifting cylinder 82. Then, the driving motor 92 can drive the rotating shaft 91 to rotate, and the gear 94 of the rotating shaft 91 drives the annular rack 95 to rotate the outer plate 7, adjust the splicing plate 5 adsorbed by the pneumatic suction cup 87 on the arc frame 85 to a suitable position, and the electric push rod 10 drives the pneumatic suction cup 87 at the bottom of the outer plate 7 to move toward the annular frame 2, and the hydraulic cylinder 3 drives the supporting block 4 where the splicing plate 5 needs to be put down to be retracted, and the splicing plate 5 is placed in the specified position through the lifting cylinder 82, and then the supporting block 4 is pushed by the hydraulic cylinder 3 to fit the splicing plate 5 for extrusion contact, and then other splicing plates 5 are laid through the above steps so that the splicing plates 5 can be spliced ​​together into a circular ring shape to support the inner wall of the tunnel. After being laid into a circular ring shape, the outer frame 1 and the annular frame 2 are driven to continue to move under the push of the hydraulic cylinder 3, and then the splicing plates 5 of the next layer are spliced.

[0048] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tunnel excavation device for preventing gravel from falling, characterized in that: include: An outer frame (1), wherein an annular frame (2) is provided on one side of the outer frame (1), hydraulic cylinders (3) are symmetrically and fixedly mounted inside the annular frame (2) at equal distances and angles, one end of each hydraulic cylinder (3) is fixedly connected to the outer frame (1), and supporting blocks (4) are provided on a side of the annular frame (2) away from the outer frame (1) at equal distances and angles, and output ends of each hydraulic cylinder (3) are fixedly connected to corresponding supporting blocks (4); Splicing plates (5), the splicing plates (5) being arranged at equal distances and angles on one side of the annular frame (2), and the supporting blocks (4) being in extrusion contact with adjacent splicing plates (5); An inner plate (6), the inner plate (6) being fixedly connected to the inside of the annular frame (2), and electric push rods (10) being fixedly installed in an equidistant and symmetrical manner inside the inner plate (6); An outer sleeve plate (7), the outer sleeve plate (7) being arranged on one side of the annular frame (2), the inner sleeve plate (7) being rotatably connected to an inner ring (12), the inner sleeve (12) being fixedly connected to a support plate (11), a fixing plate (13) being symmetrically fixedly connected to an inner wall at the top of the inner sleeve (12), and the output ends of the electric push rods (10) being fixedly connected to the support plate (11); An adsorption mechanism (8), wherein the adsorption mechanism (8) is mounted on the outside of the outer sleeve plate (7); A driving mechanism (9), wherein the driving mechanism (9) is installed between the annular frame (2) and the outer sleeve (7); The adsorption mechanism (8) comprises a fixed block (81), a lifting cylinder (82), a connecting frame (83), a connecting rod (84), an arc frame (85), a fixed sleeve (86), a pneumatic suction cup (87) and an air connection pipe (88). The fixed blocks (81) are fixedly connected to both sides of the outer sleeve (7). The lifting cylinder (82) is fixedly installed inside the fixed block (81). The bottom of the outer sleeve (7) is provided with a connecting frame (83). The output ends of the lifting cylinder (82) are fixedly connected to the connecting frame (83). The bottom of the connecting frame (83) is fixedly connected to a connecting rod (84). The bottom of the connecting rod (84) is fixedly connected to an arc frame (85). The fixed sleeves (86) are equidistantly sleeved and fixed to both sides of the arc frame (85). The top of the fixed sleeve (86) is slidably plugged with an air connection pipe (88). The bottom of the air connection pipe (88) is fixedly connected to a pneumatic suction cup (87). The driving mechanism (9) comprises a rotating shaft (91), a driving motor (92), a receiving hole (93), a gear (94) and an annular rack (95); the rotating shaft (91) is rotatably connected inside the inner plate (6), and one end of the rotating shaft (91) is rotatably connected to a fixing plate (13); a driving motor (92) is fixedly mounted on one side of the inner plate (6); an output end of the driving motor (92) is fixedly connected to an end corresponding to the rotating shaft (91); a receiving hole (93) is provided on the top of the inner ring (12); a gear (94) is sleeved and fixedly connected to the outer side of the rotating shaft (91) between the fixing plates (13); an annular rack (95) is embedded and fixedly connected inside the outer plate (7); and the gear (94) is meshingly connected to the annular rack (95).

2. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: Support columns (14) are fixedly connected between the outer frame (1) and the annular frame (2) at equal distances and angles.

3. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: A protective shell (15) is fixedly connected to one side of the inner plate (6) close to the outer frame (1).

4. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: The outer sides of the splicing plates (5) are symmetrically provided with circular holes (16).

5. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: One side of the outer frame (1) is provided with mounting holes (17) at equal distances and angles.

6. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: A sleeve (18) is fixedly connected inside the inner plate (6), a sliding rod (19) is slidably inserted inside the sleeve (18), and one end of the sliding rod (19) is fixedly connected to the support plate (11).

7. The tunnel excavation device for preventing gravel from falling according to claim 1, characterized in that: One side of the splicing plate (5) begins to have a strip groove (21), and the other side of the splicing plate (5) is provided with a raised strip (20), and the strip groove (21) matches with the corresponding raised strip (20).

8. The tunnel excavation device for preventing rubble from falling according to claim 1, characterized in that: The outer sides of the air connection pipes (88) are all threadedly connected with nuts (89), and the bottoms of the nuts (89) are rotatably connected to the corresponding fixing sleeves (86).

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