Foundation pit supporting device for tunnel construction

Abstract

The foundation pit supporting device for tunnel construction relates to the technical field of foundation pit protection and comprises a supporting plate, an assembling shell and a threaded rod, a joint groove is formed in a stop block, a clamping block is arranged at the top end of a supporting block, a connecting block is connected to the outer side of the clamping block in a combined mode, and the threaded rod is connected with the connecting block in a combined mode. The outer side of the threaded rod is connected with a moving ring in a penetrating and threaded mode, and two sets of inclined supporting rods are symmetrically and rotationally connected to the outer side of the moving ring at fixed points. According to the utility model, by arranging components such as the inclined supporting rod, after the clamping block is combined with the clamping groove formed in the connecting block, the connecting block and the threaded rod can be combined on the front surface of the supporting plate, and after the rotating wheel arranged at one end of the threaded rod is rotated, the threaded rod can rotate to adjust the use position of the moving ring; by expanding the using angles of the two sets of inclined supporting rods, the inclined supporting rods can support the two adjacently-assembled supporting plates, the assembling steps are simple and practical, the assembling efficiency of the supporting device is effectively improved, and the working risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit protection, in particular to a foundation pit supporting device for tunnel construction. Background Art

[0002] Tunnel construction is the abbreviation of the New Austrian Tunnel Construction Method. It is a reasonable construction method proposed by Austrian scholars from the perspective of rock mechanics in their long-term tunnel construction practice. It is a new engineering construction method formed by a system consisting of shotcrete technology, monitoring and measurement, etc. and rock mechanics theory. The foundation pit support device for tunnel construction is a structural system designed to provide a stable working surface during tunnel construction. These devices usually include support structures, support systems, drainage systems, etc. to ensure that the foundation pit will not collapse during construction, and also provide a safe working environment for construction personnel.

[0003] At present, when the existing foundation pit support device is used in the tunnel construction process, the assembly of the foundation pit support device is relatively cumbersome, and the complicated assembly steps will make the workers spend more time to complete the assembly process, which directly leads to a decrease in work efficiency. If the assembly steps are complicated, the workers may need to work longer in a dangerous environment, increasing the risk of work. To this end, we provide a foundation pit support device for tunnel construction to solve the above problems. Utility Model Content

[0004] 1) Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a foundation pit supporting device for tunnel construction.

[0006] 2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit support device for tunnel construction, comprising a support plate, an assembly shell and a threaded rod, two groups of blocking blocks are arranged on the front of the support plate, a coupling groove is opened inside the blocking block, a support block is arranged on the inner wall of the support plate, a positioning block is arranged on the top of the support block, a connecting block is combined and connected to the outer side of the positioning block, and a threaded rod is rotatably connected to the front side of the connecting block, a moving ring is threadedly connected to the outer side of the threaded rod, and two groups of diagonal support rods are symmetrically and fixedly connected to the outer side of the moving ring, and the diagonal support rods are connected to the coupling groove by a locking block.

[0008] Furthermore, the assembly shells are symmetrically arranged on the front side of the supporting plate, and four groups of assembly shells are symmetrically and detachably arranged. A triangular plate is connected to the inside of the assembly shell, and the triangular plate is a right triangle.

[0009] Furthermore, a rotating wheel is provided at the other end of the threaded rod, and the rotating wheel is located in front of the moving ring.

[0010] Furthermore, a mounting frame is provided on the front of the supporting plate, and the mounting frame is located on one side of the assembly shell, and a rangefinder is provided on the top of the mounting frame.

[0011] Furthermore, a warning light is provided at the top of the mounting frame, and the warning light is located on one side of the rangefinder.

[0012] Furthermore, a locking groove is provided at the bottom end of the connecting block, and the locking groove is assembled and connected with the locking block.

[0013] 3) Beneficial effects:

[0014] Compared with the prior art, the foundation pit support device for tunnel construction has the following beneficial effects:

[0015] 1. The utility model is provided with components such as diagonal bracing rods. After the positioning grooves provided inside the positioning block and the connecting block are combined, the connecting block and the threaded rod can be combined on the front side of the supporting plate. After the rotating wheel provided at one end of the threaded rod is rotated, the threaded rod can be rotated to adjust the use position of the moving ring. By expanding the use angles of the two groups of diagonal bracing rods, the diagonal bracing rods can support two adjacently assembled supporting plates. The assembly steps are simple and practical, which effectively improves the assembly efficiency of the supporting device and reduces the risk of work.

[0016] 2. The utility model is provided with components such as a distance meter. After the foundation pit support device is assembled, the distance meter can be used to measure the distance between the two groups of support plates by laser. The distance meter is connected to the warning light through an external controller. When the distance between the two groups of support plates measured by the distance meter changes greatly, the warning light can alert surrounding staff, thereby improving the safety of the foundation pit support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the support plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the threaded rod structure of the utility model.

[0021] In the figure: 1. Support plate; 2. Assembly shell; 3. Triangle plate; 4. Stop block; 5. Engagement groove; 6. Support block; 7. Positioning block; 8. Connecting block; 9. Positioning groove; 10. Threaded rod; 11. Rotating wheel; 12. Moving ring; 13. Diagonal support rod; 14. Mounting frame; 15. Rangefinder; 16. Warning light. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: a foundation pit support device for tunnel construction;

[0024] It includes a supporting plate 1, an assembling shell 2 and a threaded rod 10, two groups of blocking blocks 4 are arranged on the front of the supporting plate 1, a coupling groove 5 is opened inside the blocking block 4, a supporting block 6 is arranged on the inner wall of the supporting plate 1, a locking block 7 is arranged on the top of the supporting block 6, a connecting block 8 is combined and connected to the outer side of the locking block 7, and the front side of the connecting block 8 is rotatably connected to the threaded rod 10, a moving ring 12 is threadedly connected to the outer side of the threaded rod 10, two groups of diagonal support rods 13 are symmetrically and fixedly rotated on the outer side of the moving ring 12, and the diagonal support rods 13 are connected to the coupling groove 5 in a locking manner, a rotating wheel 11 is arranged on the other end of the threaded rod 10, and the rotating wheel 11 is located in front of the moving ring 12, a locking groove 9 is opened at the bottom of the connecting block 8, and the locking groove 9 is combined and connected to the locking block 7.

[0025] The engaging groove 5 is provided inside the blocking block 4, and the engaging groove 5 is used to provide sufficient engaging space for the diagonal brace rod 13, and the diagonal brace rod 13 can be blocked by the engaging groove 5 provided inside the blocking block 4, and the support block 6 is installed on the inner wall of the supporting plate 1 by connection, and the support block 6 provides installation support for the positioning block 7, and after the positioning block 7 is combined with the positioning groove 9 provided inside the connecting block 8, the connecting block 8 and the threaded rod 10 can be combined on the front side of the supporting plate 1, and the threaded rod 10 is connected through the moving ring 12, and then the diagonal brace rod 13 is combined with the engaging groove 5, and after the rotating wheel 11 provided at one end of the threaded rod 10 is rotated, the threaded rod 10 can rotate to adjust the use position of the moving ring 12, and by expanding the use angle of the two groups of diagonal brace rods 13, the diagonal brace rod 13 can support two adjacently assembled supporting plates 1, and the assembly steps are simple and practical, which effectively improves the assembly efficiency of the supporting device and reduces the risk of work.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a foundation pit support device for tunnel construction;

[0027] The assembly shells 2 are symmetrically arranged on the front side of the supporting plate 1 , and the assembly shells 2 are symmetrically and detachably arranged in four groups. The interior of the assembly shells 2 is connected with a triangular plate 3 , and the triangular plate 3 is a right triangle.

[0028] The support plate 1 is one of the main components of the foundation pit support device for tunnel construction. Multiple groups of support plates 1 can be used to support and protect the inner wall of the tunnel construction foundation pit, reducing the possibility of foundation pit collapse. The support plate 1 is connected and installed inside the assembly shell 2 through the triangular plate 3. The triangular plate 3 can increase the compression resistance of the assembly shell 2. The assembly shell 2 is detachably connected to the two adjacent groups of support plates 1. The assembly shell 2 can preliminarily connect and support the two groups of support plates 1, thereby increasing the stability of the support device when in use.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model provides a technical solution: a foundation pit support device for tunnel construction;

[0030] A mounting frame 14 is provided on the front of the support plate 1 , and the mounting frame 14 is located on one side of the assembly shell 2 , a rangefinder 15 is provided on the top of the mounting frame 14 , a warning light 16 is provided on the top of the mounting frame 14 , and the warning light 16 is located on one side of the rangefinder 15 .

[0031] The mounting frame 14 is connected and installed on the front side of the support plate 1. The mounting frame 14 provides mounting support for the rangefinder 15 and the warning light 16. After the foundation pit support device is assembled, the rangefinder 15 can be used to measure the distance between the two groups of support plates 1 by laser. The rangefinder 15 is connected to the warning light 16 through an external controller. When the distance change value between the two groups of support plates 1 measured by the rangefinder 15 is large, the warning light 16 can alert surrounding staff, thereby improving the safety of the use of the foundation pit support device.

[0032] Working principle: By using the assembly shell 2 to connect the two groups of support plates 1, the support plates 1 can be assembled in the foundation pit of tunnel construction. After the positioning block 7 is combined with the positioning groove 9 opened inside the connecting block 8, the connecting block 8 and the threaded rod 10 can be combined on the front side of the support plate 1. After the rotating wheel 11 set at one end of the threaded rod 10 is rotated, the threaded rod 10 can rotate to adjust the use position of the movable ring 12. By expanding the use angle of the two groups of diagonal support rods 13, the diagonal support rods 13 can support the two adjacently assembled support plates 1. The assembly steps are simple and practical, which effectively improves the assembly efficiency of the support device and reduces the risk of work. After the foundation pit support device is assembled, the distance between the two groups of support plates 1 can be measured by laser using the rangefinder 15. The rangefinder 15 is connected to the warning light 16 through an external controller. When the distance change value between the two groups of support plates 1 measured by the rangefinder 15 is large, the warning light 16 can warn the surrounding staff, thereby improving the safety of the use of the foundation pit support device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit support device for tunnel construction, comprising a support plate (1), an assembly shell (2) and a threaded rod (10), characterized in that: The front of the support plate (1) is provided with two groups of blocking blocks (4), the inside of the blocking blocks (4) is provided with a coupling groove (5), the inner wall of the support plate (1) is provided with a supporting block (6), the top of the supporting block (6) is provided with a blocking block (7), the outer side of the blocking block (7) is combined and connected with a connecting block (8), and the front side of the connecting block (8) is rotatably connected with a threaded rod (10), the outer side of the threaded rod (10) is threadedly connected with a moving ring (12), the outer side of the moving ring (12) is symmetrically and fixedly connected with two groups of diagonal support rods (13), and the diagonal support rods (13) are connected with the coupling groove (5) in a blocking manner.

2. A foundation pit support device for tunnel construction according to claim 1, characterized in that: The assembly shell (2) is symmetrically arranged on the front side of the support plate (1), and the assembly shell (2) is symmetrically and detachably arranged in four groups. The interior of the assembly shell (2) is connected with a triangular plate (3), and the triangular plate (3) is a right triangle.

3. A foundation pit support device for tunnel construction according to claim 1, characterized in that: A rotating wheel (11) is provided at the other end of the threaded rod (10), and the rotating wheel (11) is located in front of the moving ring (12).

4. A foundation pit support device for tunnel construction according to claim 1, characterized in that: A mounting frame (14) is arranged on the front of the support plate (1), and the mounting frame (14) is located on one side of the assembly shell (2). A rangefinder (15) is arranged on the top of the mounting frame (14).

5. A foundation pit support device for tunnel construction according to claim 4, characterized in that: A warning light (16) is provided at the top of the mounting frame (14), and the warning light (16) is located on one side of the rangefinder (15).

6. A foundation pit support device for tunnel construction according to claim 1, characterized in that: A locking groove (9) is provided at the bottom end of the connection block (8), and the locking groove (9) is assembled and connected with the locking block (7).

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