Supporting structure for tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction, and particularly discloses a tunnel construction supporting structure which comprises a base, the base is rotationally connected with at least three sets of connecting bases, the tops of the connecting bases are fixedly connected with threaded columns, the threaded columns are in threaded connection with threaded bases, the two sides of each threaded base are rotationally connected with supporting rods, and the supporting rods are fixedly connected with the threaded bases. Through the arrangement of the arc-shaped frame, the threaded column, the supporting rod, the threaded rod, the top seat and the rotating assembly, the rotating assembly drives the threaded column to rotate, the threaded seat moves upwards along with rotation of the threaded column, the supporting rod is driven to move, and the supporting rod is driven to move. The arc-shaped frame rotates by an angle to make contact with the inner wall of the tunnel, the threaded rod drives the top base to move upwards to be attached to the inner wall of the tunnel, the inner wall of the tunnel can be supported, and the building time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel construction supporting structure. Background Art

[0002] During tunnel construction, ground deformation and collapse is a common problem. If no support is provided, it is easy to cause ground collapse accidents. The support structure can strengthen the ground and prevent ground deformation and collapse, thereby ensuring safety during construction and ensuring smooth passage.

[0003] The existing patent announcement number CN211230461U discloses a support structure for a subway tunnel construction shaft, which includes a first area and a second area. The first half area, the second half area, the first area and the second area are excavated first. Each time an area is excavated, a corresponding support structure is set in the area to ensure safety. Then, small construction machinery is lowered from the first half area and set in the first area to start construction on the third area; then, the small construction machinery is lowered from the second half area to construct the fourth area, and then the fifth area and the sixth area are constructed in turn; finally, a waterproof layer is applied on the surface of the concrete support layer, and a secondary lining is applied on the surface of the waterproof layer.

[0004] When installing the above device, different tools need to be used for operation and construction, which is time-consuming, and when dismantling, it needs to be dismantled step by step. In view of the above problems, a tunnel construction support structure is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a tunnel construction support structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tunnel construction support structure, comprising a base, wherein at least three groups of connection seats are rotatably connected to the base, a threaded column is fixedly connected to the top of the connection seat, a threaded seat is threadedly connected to the threaded column, both sides of the threaded seat are rotatably connected to support rods, an end of the support rod away from the threaded seat is rotatably connected to an arc frame, and the ends of the two groups of arc frames close to each other are rotatably connected to both sides of a group of top seats, a threaded rod is rotatably connected to the bottom of the top seat, and a rotation groove for cooperating with the threaded rod for rotation is provided on the top of the threaded column;

[0008] An operating box is fixedly connected to the top of the base, and a rotating component for driving the connecting seat to rotate is provided on the operating box. Baffles are provided on both sides of the operating box, and an adjusting component for adjusting the baffles is provided on the operating box. A positioning component for positioning the base is provided at the bottom of the baffle.

[0009] In an optional scheme: the rotating assembly includes a motor and a first bevel gear, a second bevel gear is fixedly connected to the connecting seat, the second bevel gear is meshed with the first bevel gear, a connecting rod is rotatably connected to the inner wall of the operating box, three groups of first bevel gears are fixedly connected to the connecting rod, and a motor for driving the connecting rod to rotate is installed on one side of the operating box.

[0010] In an optional solution: the adjustment assembly includes an electric telescopic rod, three groups of electric telescopic rods are fixedly connected to a side of the baffle close to the operating box, and one end of the electric telescopic rod away from the baffle is installed on the operating box.

[0011] In an optional solution: the positioning assembly includes threaded holes and a rotating seat, the bottom of the baffle is provided with no less than three groups of threaded holes, the threaded holes are threadedly connected with a positioning seat, the positioning seat is threadedly connected with a rotating seat, and the rotating seat is rotatably connected to the bottom of the baffle.

[0012] In an optional solution: the arc frame and the baffle are both provided with anti-slip pads on one side close to the inner wall of the tunnel.

[0013] In an optional solution: adjacent threaded seats are connected by a set of limiting rods.

[0014] In an optional solution: no less than eight sets of universal wheels are installed at the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is provided with an arc frame, a threaded column, a support rod, a threaded rod, a top seat and a rotating assembly. The rotating assembly drives the threaded column to rotate. As the threaded column rotates, the threaded seat moves upward, driving the support rod to move. The arc frame rotates to an angle to contact the inner wall of the tunnel. The threaded rod drives the top seat to move upward and close to the inner wall of the tunnel, so that the inner wall of the tunnel can be supported and the construction time can be reduced.

[0017] The utility model arranges a positioning component, which can position the base, so that the arc frame and the baffle support are more stable.

[0018] The utility model is provided with an adjustment component, and the adjustment component can adjust the distance between the baffles, so as to facilitate close support to the inner wall of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a schematic diagram of the local structure of the utility model.

[0021] Figure 3It is a schematic diagram of the local structure of the utility model.

[0022] In the figure: 1. base; 2. threaded column; 3. threaded seat; 4. support rod; 5. arc frame; 6. threaded rod; 7. top seat; 8. electric telescopic rod; 9. baffle; 10. operation box; 11. positioning seat; 12. threaded hole; 13. rotating seat; 14. motor; 15. first bevel gear; 16. second bevel gear; 17. connecting rod; 18. connecting seat. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 3 In this embodiment, the tunnel construction support structure includes a base 1, on which at least three groups of connection seats 18 are rotatably connected, a threaded column 2 is fixedly connected to the top of the connection seat 18, a threaded seat 3 is threadedly connected to the threaded column 2, both sides of the threaded seat 3 are rotatably connected to support rods 4, one end of the support rod 4 away from the threaded seat 3 is rotatably connected to an arc frame 5, and the ends of the two groups of arc frames 5 that are close to each other are rotatably connected to both sides of a group of top seats 7, and the bottom of the top seat 7 is rotatably connected to a threaded rod 6, and a rotation groove for cooperating with the threaded rod 6 for rotation is provided on the top of the threaded column 2;

[0026] An operating box 10 is fixedly connected to the top of the base 1, and a rotating assembly for driving the connecting seat 18 to rotate is provided on the operating box 10. Baffles 9 are provided on both sides of the operating box 10, and an adjusting assembly for adjusting the baffle 9 is provided on the operating box 10. A positioning assembly for positioning the base 1 is provided at the bottom of the baffle 9. The rotating assembly starts to work and drives the connecting seat 18 and the threaded column 2 to rotate. The threaded seat 3 moves upward with the rotation of the threaded column 2, and the support rod 4 drives the arc frame 5 to rotate outward with the movement of the threaded seat 3. The threaded rod 6 drives the top seat 7 to move upward with the rotation of the threaded column 2, and is close to the top of the inner wall of the tunnel. The adjusting assembly starts to work, drives the baffle 9 to extend outward, and is close to both sides of the inner wall of the tunnel. The positioning assembly is for the base 1 to reduce shaking.

[0027] The rotating assembly includes a motor 14 and a first bevel gear 15, a second bevel gear 16 is fixedly connected to the connecting seat 18, and the second bevel gear 16 is meshed with the first bevel gear 15. The inner wall of the operating box 10 is rotatably connected to a connecting rod 17, and three groups of first bevel gears 15 are fixedly connected to the connecting rod 17. A motor 14 for driving the connecting rod 17 to rotate is installed on one side of the operating box 10. The motor 14 starts to work, driving the connecting rod 17 to rotate, and the first bevel gear 15 rotates with the rotation of the connecting rod 17. The second bevel gear 16 rotates by meshing with the first bevel gear 15, which can drive the connecting seat 18 to rotate, thereby driving the threaded column 2 to rotate.

[0028] The adjustment assembly includes an electric telescopic rod 8, and three groups of electric telescopic rods 8 are fixedly connected to the side of the baffle 9 close to the operating box 10. The end of the electric telescopic rod 8 away from the baffle 9 is installed on the operating box 10. When the electric telescopic rod 8 starts to work, it drives the baffle 9 to extend outward, close to the two sides of the inner wall of the tunnel, and supports the two sides of the inner wall of the tunnel.

[0029] The positioning assembly includes threaded holes 12 and a rotating seat 13. No less than three groups of threaded holes 12 are provided at the bottom of the baffle 9. The threaded holes 12 are threadedly connected to a positioning seat 11. The positioning seat 11 is threadedly connected to a rotating seat 13. The rotating seat 13 is rotatably connected to the bottom of the baffle 9. The rotating seat 13 is rotated. As the rotating seat 13 rotates, the positioning seat 11 moves downward until the positioning pad contacts the ground, so that the base 1 can be positioned, so that the arc frame 5 and the baffle 9 are supported more stably.

[0030] The arc frame 5 and the baffle plate 9 are both provided with anti-skid pads on one side close to the inner wall of the tunnel. By providing the anti-skid pads, the arc frame 5 and the baffle plate 9 can be supported more stably.

[0031] Adjacent threaded seats 3 are connected via a set of limiting rods, so as to limit the movement of the threaded seats 3 .

[0032] No less than eight sets of universal wheels are installed at the bottom of the base 1. By providing the universal wheels, the movement of the base 1 can be facilitated.

[0033] The working principle of the utility model is: when in use, the motor 14 starts to work, driving the connecting rod 17 to rotate, the first bevel gear 15 rotates with the rotation of the connecting rod 17, the second bevel gear 16 rotates by meshing with the first bevel gear 15, the second bevel gear 16 drives the connecting seat 18 and the threaded column 2 to rotate, the threaded seat 3 moves upward with the rotation of the threaded column 2, the support rod 4 drives the arc frame 5 to rotate outward with the movement of the threaded seat 3, the threaded rod 6 drives the top seat 7 to move upward with the rotation of the threaded column 2, and is close to the top of the inner wall of the tunnel, the electric telescopic rod 8 starts to work, drives the baffle 9 to extend outward, close to both sides of the inner wall of the tunnel, and rotates the rotating seat 13. With the rotation of the rotating seat 13, the positioning seat 11 moves downward until the positioning pad contacts the ground.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tunnel construction support structure, comprising a base (1), characterized in that: The base (1) is rotatably connected to at least three groups of connecting seats (18), the top of the connecting seat (18) is fixedly connected to a threaded column (2), the threaded column (2) is threadedly connected to a threaded seat (3), both sides of the threaded seat (3) are rotatably connected to support rods (4), the end of the support rod (4) away from the threaded seat (3) is rotatably connected to an arc frame (5), the ends of the two groups of arc frames (5) close to each other are rotatably connected to both sides of a group of top seats (7), the bottom of the top seat (7) is rotatably connected to a threaded rod (6), and the top of the threaded column (2) is provided with a rotation groove for cooperating with the threaded rod (6) for rotation; An operating box (10) is fixedly connected to the top of the base (1), and a rotating assembly for driving the connecting seat (18) to rotate is arranged on the operating box (10). Baffles (9) are arranged on both sides of the operating box (10), and an adjusting assembly for adjusting the baffles (9) is arranged on the operating box (10). A positioning assembly for positioning the base (1) is arranged at the bottom of the baffle (9).

2. The tunnel construction support structure according to claim 1, characterized in that: The rotating assembly comprises a motor (14) and a first bevel gear (15); a second bevel gear (16) is fixedly connected to the connecting seat (18); the second bevel gear (16) is meshed with the first bevel gear (15); a connecting rod (17) is rotatably connected to the inner wall of the operating box (10); three groups of first bevel gears (15) are fixedly connected to the connecting rod (17); and a motor (14) for driving the connecting rod (17) to rotate is installed on one side of the operating box (10).

3. The tunnel construction support structure according to claim 1, characterized in that: The adjustment assembly comprises an electric telescopic rod (8), three groups of electric telescopic rods (8) are fixedly connected to one side of the baffle (9) close to the operating box (10), and one end of the electric telescopic rod (8) away from the baffle (9) is mounted on the operating box (10).

4. The tunnel construction support structure according to claim 1, characterized in that: The positioning assembly comprises threaded holes (12) and a rotating seat (13). The bottom of the baffle (9) is provided with no less than three groups of threaded holes (12). The threaded holes (12) are internally threadedly connected to a positioning seat (11). The positioning seat (11) is threadedly connected to a rotating seat (13). The rotating seat (13) is rotatably connected to the bottom of the baffle (9).

5. The tunnel construction support structure according to claim 1, characterized in that: The arc frame (5) and the baffle plate (9) are both provided with anti-slip pads on one side close to the inner wall of the tunnel.

6. The tunnel construction support structure according to claim 1, characterized in that: Adjacent threaded seats (3) are connected via a set of limiting rods.

7. The tunnel construction support structure according to claim 1, characterized in that: No less than eight sets of universal wheels are installed at the bottom of the base (1).

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