Supporting frame for tunnel construction

Abstract

The supporting frame for tunnel construction comprises a supporting rod, an adjusting rod and a supporting table, a threaded groove is vertically formed in the supporting rod, and the adjusting rod is connected into the threaded groove of the supporting rod in a threaded mode. The supporting table is arranged at the end, away from the supporting rod, of the adjusting rod. The adjusting rod is connected with the supporting rod through threads, so that the length of the part, extending out of the supporting rod, of the adjusting rod can be adjusted by rotating the adjusting rod, the height of the supporting table can be accurately adjusted, and the whole supporting frame can adapt to steel arches of different heights through simple rotating operation. And the supporting frame is simple in overall structure and can be rapidly unfolded and adjusted in height in the construction process, the construction efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

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

[0002] During the operation of the tunnel boring machine, when the tunnel surrounding rock conditions are poor, a large number of steel arch frames need to be assembled for surrounding rock support.

[0003] However, in complex environments, space constraints often make mechanized work difficult, requiring on-site manual assembly of the steel arch support frame. This work is already time-consuming and labor-intensive, and further time is required to adjust the support frame to accommodate different heights of the steel arch support. Utility Model Content

[0004] The present application provides a support frame for tunnel construction, which has the effect of being able to quickly unfold and quickly adjust the height of the support frame.

[0005] The present application provides a tunnel construction support frame adopting the following technical solution:

[0006] A support frame for tunnel construction is characterized in that it includes a support rod, an adjusting rod and a support platform, a threaded groove is vertically opened in the support rod, and the adjusting rod is threadedly connected in the threaded groove of the support rod; the support platform is arranged on one end of the adjusting rod away from the support rod.

[0007] Through the above technical solution, the adjusting rod is connected to the support rod through a thread, so the length of the adjusting rod extending out of the support rod can be adjusted by rotating the adjusting rod, thereby achieving precise adjustment of the height of the support platform, so that the entire support frame can adapt to steel arch frames of different heights through a simple rotation operation; the overall structure of the support frame is simple, and it can be quickly unfolded and adjusted in height during construction, which improves construction efficiency and reduces the labor intensity of workers.

[0008] Preferably, the adjusting rod is provided with an electromagnet, and both the support rod and the adjusting rod are made of martensitic stainless steel; when the electromagnet is energized, the adjusting rod is adsorbed on the support rod.

[0009] Through the above technical solution, the martensitic stainless steel material has high strength and corrosion resistance as well as magnetism, and can be magnetized by a magnet, thereby forming a stronger connection between the adjusting rod and the support rod through magnetic adsorption. At the same time, the power on and off of the electromagnet can realize the rapid locking and unlocking of the adjusting rod, which facilitates the adjustment of the support height.

[0010] Preferably, the support platform also includes two plug plates, one end of which is fixed with a pin column, and a plurality of plug holes for inserting the pin columns are evenly opened on the top surface of the support platform along the length direction of the support platform; when the two pin columns are inserted into the plug holes, the two plug plates abut against the two side surfaces of the steel arch frame.

[0011] Through the above technical solution, by inserting the plug plate and making it abut against the two side surfaces of the steel arch frame, the steel arch frame can be prevented from shaking or displacing during use, and the operator only needs to insert the plug plate into the corresponding socket to easily complete the abutment of the support platform against the steel arch frame, thereby improving installation efficiency.

[0012] Preferably, a rotating rod is vertically provided on the support platform toward one end of the adjusting rod, a rotating groove for matching the rotating rod is provided on the adjusting rod, and the support platform is rotatably connected to the adjusting rod.

[0013] Through the above technical solution, due to height issues during the installation process, it is inevitable that the support platform will be at an angle to the length direction of the steel arch frame after it is raised. However, by designing the support platform to be rotatably connected to the adjusting rod, the support platform can be rotated when encountering the above situation to ensure that the support platform is perpendicular to the length direction of the steel arch frame.

[0014] Preferably, a base plate assembly is also included, and the base plate assembly includes a first base plate, a second base plate and a movable rod, the middle end of the first base plate is fixed to the end of the support rod away from the support frame, and a clamping groove is provided on the surface of the first base plate away from the support frame; the movable rod is vertically arranged in the clamping groove, the second base plate is rotatably connected to the movable rod, the second base plate slides on the movable rod, and the clamping groove is used to clamp the second base plate.

[0015] Through the above technical solution, the operator can rotate the second base plate and insert it upward into the snap-in groove, unfold the first base plate and the second base plate to form a cross base, thereby increasing the bearing capacity and stability of the entire structure.

[0016] Preferably, screw holes for screws to pass through are provided at both ends of the first bottom plate and the second bottom plate.

[0017] Through the above technical solution, the screw holes allow the first base plate and the second base plate to be fixed to the ground by screws, thereby reducing loosening or displacement caused by vibration or external force and increasing stability.

[0018] Preferably, diagonal support plates are provided between the first bottom plate and the support platform, and between the inserting plate and the support platform.

[0019] Through the above technical solution, the diagonal bracing plate can effectively disperse and transfer the load, so that the entire structure can withstand greater pressure.

[0020] The technical effects of this utility model are mainly reflected in the following aspects:

[0021] 1. The utility model connects the adjusting rod to the support rod through a thread, so that the length of the adjusting rod extending out of the support rod can be adjusted by rotating the adjusting rod, thereby achieving precise adjustment of the support platform height, so that the support frame can adapt to steel arch frames of different heights through a simple rotation operation;

[0022] 2. The utility model forms a stronger connection between the adjustment rod and the support rod through magnetic adsorption. At the same time, the power on and off of the electromagnet can realize the rapid locking and unlocking of the adjustment rod, which is convenient for adjusting the support height;

[0023] 3. The utility model connects the support platform to the adjusting rod through rotation, so that the support platform can be rotated when there is an angle between the support platform and the length direction of the steel arch frame after the support platform is raised. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 This is a schematic cross-sectional view along the AA section line in the embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the structure of the base plate assembly after it is unfolded in an embodiment of the present application.

[0027] Figure numerals: 1. Support rod; 11. Threaded groove; 2. Adjusting rod; 21. Rotating groove; 3. Support platform; 31. Insert plate; 311. Latch column; 32. Insert hole; 33. Rotating rod; 4. Electromagnet; 5. Bottom plate assembly; 51. First bottom plate; 511. Snap-fit ​​groove; 52. Second bottom plate; 53. Movable rod; 531. Flanging; 54. Screw hole; 6. Diagonal support plate. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 , the specific implementation methods of the utility model are further described in detail to make the technical solution of the utility model easier to understand and grasp.

[0029] The present application discloses a support frame for tunnel construction:

[0030] Reference Figure 1-3A support frame for tunnel construction includes a support rod 1, an adjusting rod 2 and a support platform 3. A threaded groove 11 is vertically provided in the support rod 1, and the adjusting rod 2 is threadedly connected to the threaded groove 11 of the support rod 1. The support platform 3 is fixed to the end of the adjusting rod 2 away from the support rod 1. The adjusting rod 2 is connected to the support rod 1 by a thread, so the length of the adjusting rod extending out of the support rod 1 can be adjusted by rotating the adjusting rod 2, thereby achieving precise adjustment of the height of the support platform 3, so that the support frame as a whole can adapt to steel arch frames of different heights through a simple rotation operation; and the overall structure of the support frame is simple, and it can be quickly unfolded and adjusted in height during construction, thereby improving construction efficiency and reducing the labor intensity of workers.

[0031] Reference Figure 2 , an electromagnet 4 is fixed on the adjusting rod 2, and both the support rod 1 and the adjusting rod 2 are made of martensitic stainless steel; when the electromagnet 4 is energized, the adjusting rod 2 is adsorbed on the support rod 1. Martensitic stainless steel has high strength and corrosion resistance as well as magnetism, and can be magnetized by a magnet, thereby forming a more secure connection between the adjusting rod 2 and the support rod 1 through magnetic adsorption. At the same time, the power on and off of the electromagnet 4 can achieve rapid locking and unlocking of the adjusting rod 2, making it easier to adjust the support height. In order to reduce the impact of residual magnetism on the adjusting rod 2 and the support rod 1 after magnetization, a strong AC power supply can be prepared. After the electromagnet 4 is powered off, an alternating electromagnetic field is formed by surrounding the adjusting rod 2 and the support rod 1 with wires. The adjusting rod 2 and the support rod 1 can be demagnetized after a few minutes of power on.

[0032] Reference Figure 1-2 The support platform 3 also includes two plug-in plates 31, one end of which is fixed with a latch column 311. A plurality of insertion holes 32 for the insertion of the latch columns 311 are evenly arranged on the top surface of the support platform 3 along the length direction of the support platform 3. When the two latch columns 311 are inserted into the insertion holes 32, the two plug-in plates 31 abut against the two side surfaces of the steel arch frame. By inserting the plug-in plates 31 and making them abut against the two side surfaces of the steel arch frame, the steel arch frame can be prevented from shaking or shifting during use. Moreover, the operator only needs to insert the plug-in plates 31 into the corresponding insertion holes 32 to easily complete the position limiting of the steel arch frame by the support platform 3, thereby improving the installation efficiency.

[0033] Reference Figure 2 A rotating rod 33 is vertically fixed to one end of the support platform 3 facing the adjustment rod 2. The adjustment rod 2 is provided with a rotating groove 21 that cooperates with the rotating rod 33. The support platform 3 is rotatably connected to the adjustment rod 2. During the installation process, due to height issues, it is inevitable that the support platform 3 will be at an angle to the length direction of the steel arch after it is raised. Designing the support platform 3 to be rotatably connected to the adjustment rod 2 allows the support platform 3 to be rotated in such a situation to ensure that the support platform 3 is perpendicular to the length direction of the steel arch.

[0034] Reference Figure 1-3 , also includes a base plate assembly 5, which includes a first base plate 51, a second base plate 52 and a movable rod 53. The middle end of the first base plate 51 is fixed to the end of the support rod 1 away from the support frame, and a clamping groove 511 is provided on the surface of the first base plate 51 away from the support frame. The movable rod 53 moves vertically in the clamping groove 511, and the second base plate 52 is rotatably connected to the movable rod 53. The second base plate 52 slides on the movable rod 53, and the clamping groove 511 is used to clamp the second base plate 52. The operator can rotate the second base plate 52 and insert it upward into the clamping groove 511, unfolding the first base plate 51 and the second base plate 52 to form a cross base, thereby increasing the load-bearing capacity and stability of the entire structure. The two ends of the movable rod 53 are folded outward to form flanges 531, which are used to prevent the movable rod 53 from falling out of the clamping groove 511 and prevent the second base plate 52 from falling out of the movable rod 53.

[0035] Reference Figure 1-3 Screw holes 54 for screws to pass through are provided at both ends of the first base plate 51 and the second base plate 52. The screw holes 54 allow the first base plate 51 and the second base plate 52 to be fixed to the ground by screws, thereby reducing loosening or displacement caused by vibration or external force and increasing stability.

[0036] Reference Figure 1-3 A diagonal bracing plate 6 is fixed between the first bottom plate 51 and the support platform 3 and between the inserting plate 31 and the support platform 3. The diagonal bracing plate 6 can effectively disperse and transfer the load, so that the entire structure can withstand greater pressure.

[0037] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A support frame for tunnel construction, characterized in that: The invention comprises a support rod (1), an adjusting rod (2) and a support platform (3); a threaded groove (11) is vertically provided in the support rod (1); the adjusting rod (2) is threadedly connected to the threaded groove (11) of the support rod (1); and the support platform (3) is arranged on an end of the adjusting rod (2) away from the support rod (1); The adjusting rod (2) is provided with an electromagnet (4), and both the support rod (1) and the adjusting rod (2) are made of martensitic stainless steel; when the electromagnet (4) is energized, the adjusting rod (2) is adsorbed on the support rod (1).

2. A tunnel construction support frame according to claim 1, characterized in that: The support platform (3) further comprises two plug plates (31), one end of each plug plate (31) being fixed with a latch column (311), and a plurality of insertion holes (32) for inserting the latch columns (311) are uniformly provided on the top surface of the support platform (3) along the length direction of the support platform (3); when the two latch columns (311) are inserted into the insertion holes (32), the two plug plates (31) abut against the side surfaces of the steel arch frame.

3. A tunnel construction support frame according to claim 1, characterized in that: A rotating rod (33) is vertically provided on one end of the support platform (3) facing the adjusting rod (2); a rotating groove (21) matching the rotating rod (33) is provided on the adjusting rod (2); and the support platform (3) is rotatably connected to the adjusting rod (2).

4. A support frame for tunnel construction according to claim 1, characterized in that: The invention also includes a base plate assembly (5), wherein the base plate assembly (5) includes a first base plate (51), a second base plate (52) and a movable rod (53), wherein the middle end of the first base plate (51) is fixed to the end of the support rod (1) away from the support frame, and a clamping groove (511) is provided on the surface of the first base plate (51) away from the support frame; the movable rod (53) is vertically arranged in the clamping groove (511), the second base plate (52) is rotatably connected to the movable rod (53), the second base plate (52) slides on the movable rod (53), and the clamping groove (511) is used to clamp the second base plate (52).

5. A support frame for tunnel construction according to claim 4, characterized in that: Both ends of the first bottom plate (51) and the second bottom plate (52) are provided with screw holes (54) for screws to pass through.

6. A tunnel construction support frame according to claim 4, characterized in that: Diagonal support plates (6) are provided between the first bottom plate (51) and the support platform (3), and between the inserting plate (31) and the support platform (3).

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