Roadway supporting structure

Abstract

The utility model discloses a roadway supporting structure which comprises two arch-shaped frames, two symmetrical adjusting columns are movably connected to the lower end faces of the two arch-shaped frames, fixing columns are slidably connected to the ends, away from the arch-shaped frames, of the adjusting columns, movable grooves are formed in the fixing columns, and a plurality of evenly-distributed locking grooves are formed in the sides, away from the center positions, of the adjusting columns. A positioning frame is fixedly connected to the side, away from the center position, of the fixing column, a telescopic rod is slidably connected to the positioning frame, a locking block is fixedly connected to one end of the telescopic rod, and a diagonal plane is arranged on the lower end face of the locking block. Meanwhile, the adjusting column and the arch-shaped frame can be directly moved upwards in cooperation with the use of a diagonal plane of the locking lower end face, rapid adjustment of the arch-shaped frame can be achieved, a locking block and a locking groove can be rapidly locked in cooperation with a spring and an elastic hose, the supporting height of the arch-shaped frame can be rapidly adjusted and locked, and the installation and adjustment efficiency is improved.

Description

Technical Field

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

[0002] Tunnels are various passages drilled between the surface and the ore body, used for ore transportation, ventilation, drainage, pedestrians, and various necessary preparatory projects for the new excavation of ore for metallurgical equipment. Due to the influence of complex ground stress and the superposition of goaf areas, tunnels need to be supported and protected to prevent tunnel collapse, causing harm to workers and affecting property safety.

[0003] A tunnel support structure disclosed in a Chinese patent document with announcement number CN219865073U includes two groups of adjustment mechanisms, and support mechanisms are installed on the tops of the two groups of adjustment mechanisms, and the support mechanisms include two support frames, each of which is installed on the top of each group of adjustment mechanisms, and support screws are installed on the bottoms of the support frames at both ends, and three mounting blocks are installed on the outer periphery of the top of the support frames, and two fixing holes are provided through the upper and lower ends of the mounting blocks, and a fixing plate is installed between the bottoms of the mounting blocks of the two support frames, and a support plate is installed on the top of the fixing plate, and fixings are installed through the upper and lower ends of the mounting blocks and the fixing plates and in the fixing holes, and the main viewing surface of the support frames is arranged in a semicircle. The tunnel support structure described in the utility model is convenient for the installation of the support frames, convenient for adjusting the fit with the inner wall of the tunnel, and enhanced support, while enhancing the fixation between the two support frames and enhancing support protection.

[0004] Based on the search of the above patents and in combination with the tunnel support structure in the prior art, it is found that when the above support structure is in use, the support screw and the support frame are raised by using a knob to rotate the knob, so as to adjust the height of the support frame. However, in actual use, when the height of the support frame needs to be adjusted, it is necessary to pay attention to rotating and adjusting multiple knobs, and during the rotation process, the consistent rotation of the knob cannot be guaranteed, which may cause inconsistent heights and require multiple adjustments. In addition, the support screw will bear most of the force during use, which may cause damage to the support screw, affecting the adjustment adaptability of the support screw, thereby reducing practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a tunnel support structure, which can effectively support the tunnel through the use of an arch frame, an adjusting column and a fixed column, and at the same time, with the use of the beveled surface of the locking lower end surface, the adjusting column and the arch frame can be directly moved upward, and the arch frame can be quickly adjusted. In combination with a spring and an elastic hose, the locking block and the locking groove are quickly locked, and the supporting height of the arch frame can be quickly adjusted and locked, thereby improving the efficiency of installation and adjustment.

[0006] The locking plate is provided with a plurality of locking plates at the bottom ends of the locking plates, and the locking plate is provided with a plurality of locking plates at the bottom ends of the locking plates, the locking plate is provided with a plurality of locking plates at the bottom ends of the locking plates, and the plurality of locking plates are provided with a plurality of locking plates at the bottom ends of the locking plates.

[0007] The beneficial effects of the utility model are as follows: the movement of the arch frame causes two laterally adjacent adjusting columns to slide on their corresponding fixed columns. During the sliding process, the chamfered surfaces of the lower end surfaces of the corresponding locking blocks contact and squeeze the adjusting columns, thereby compressing the spring and the elastic hose, thereby realizing rapid adjustment of the arch frame. At the same time, with the elasticity of the spring and the elastic hose, the locking blocks are quickly docked and locked with the corresponding locking grooves, thereby realizing rapid fixation of the arch frame and improving the efficiency and speed of adjustment and fixation.

[0008] In order to adjust the height of the arch support:

[0009] As a further improvement of the above technical solution: an installation groove is opened at one end of the adjusting column away from the fixing column, a mounting block is movably connected in the mounting groove, the mounting block is fixedly connected to the arch frame, and the mounting block and the adjusting column are screwed together by a first fixing bolt.

[0010] The beneficial effect of this improvement is that the arch frame can be quickly docked with two adjacent horizontal adjustment columns by using the mounting groove and the mounting block, and fixed by the first fixing bolt, so that the arch frame can be quickly installed and fixed:

[0011] In order to quickly install and fix the arch frame:

[0012] As a further improvement of the above technical solution: a plurality of evenly distributed fixing blocks are fixedly connected to opposite sides of the two arch frames, the fixing blocks are provided with connecting grooves, connecting blocks are clamped in the connecting grooves, and a connecting rod is fixedly connected between the two opposite connecting blocks.

[0013] The beneficial effects of this improvement are: by using the fixing block, the connecting groove and the connecting rod, two adjacent arch frames can be supported to ensure the stability of the two adjacent arch frame brackets, prevent them from tilting, and improve the stability of the entire support structure:

[0014] In order to achieve the support and fixation between two adjacent arch frames:

[0015] As a further improvement of the above technical solution: a positioning block is fixedly connected to one side of the two fixing columns that are opposite to each other in the longitudinal direction, a docking groove is provided on the upper end surface of the positioning block, a docking block is clamped in the docking groove, a docking rod is fixedly connected between the two longitudinally opposite docking blocks, and the positioning block and the docking block are screwed together by a second fixing bolt.

[0016] The beneficial effect of this improvement is that by using the docking groove, the docking block and the docking rod, two adjacent fixing columns in the longitudinal direction can be supported and fixed, thereby ensuring the stability between the two adjacent supporting columns in the longitudinal direction:

[0017] In order to support two adjacent fixed columns in the longitudinal direction:

[0018] As a further improvement of the above technical solution: a limiting groove is provided on the upper end surface of the fixing column, a limiting strip is slidably connected in the limiting groove, a limiting plate is fixed on the upper end surface of the limiting strip, and the limiting plate is slidably connected to the adjusting column.

[0019] The beneficial effects of this improvement are: by using the limit groove, the limit strip and the limit plate, the locking block can be easily blocked to prevent the locking block from docking with the locking groove, and the arch frame can be easily adjusted downward quickly:

[0020] In order to block the locking block and prevent it from docking with the locking groove:

[0021] As a further improvement of the above technical solution: the fixing block and the connecting block are screwed together by a third fixing bolt.

[0022] The beneficial effect of this improvement is that the use of the third fixing bolt can ensure a stable connection between the fixing block and the connecting block, preventing the connecting block from falling off from the connecting groove and affecting the supporting effect of the connecting rod:

[0023] To fix the connection block:

[0024] As a further improvement of the above technical solution: one end of the fixing column away from the adjusting column is fixedly connected to a retaining plate, and retaining holes are provided at four corners of the retaining plate.

[0025] The beneficial effect of this improvement is that the fixing column can be fixed to the ground of the tunnel by using the fixing plate and the fixing hole, thereby ensuring the stability of the fixing column:

[0026] In order to fix the fixed column. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional structure provided by the utility model is shown in FIG. Figure 1 ;

[0028] Figure 2 A front view provided for the utility model;

[0029] Figure 3 The utility model provides Figure 2 The three-dimensional cross-section view at AA in the middle;

[0030] Figure 4 A top view provided for the utility model;

[0031] Figure 5 The utility model provides Figure 4 A three-dimensional cross-section view at the middle BB;

[0032] Figure 6 The utility model provides Figure 5 The enlarged view of point A in the middle;

[0033] Figure 7 The three-dimensional structure provided by the utility model is shown in FIG. Figure 1 ;

[0034] Figure 8 The utility model provides Figure 7 Enlarged view of point B in the middle.

[0035] In the figure, 1, arch frame; 11, adjusting column; 12, fixing column; 13, movable groove; 14, locking groove; 15, positioning frame; 16, telescopic rod; 17, locking block; 18, chamfered surface; 19, spring; 20, elastic hose; 21, slide groove; 22, slider; 31, mounting groove; 32, mounting block; 33, first fixing bolt; 41, fixing block; 42, connecting groove; 43, connecting block; 44, connecting rod; 51, positioning block; 52, docking groove; 53, docking block; 54, docking rod; 55, second fixing bolt; 61, limiting groove; 62, limiting strip; 63, limiting plate; 71, third fixing bolt; 81, retaining plate; 82, retaining hole. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0037] like Figures 1 to 8As shown, a tunnel support structure provided by an embodiment of the utility model comprises two arch frames 1, the lower end surfaces of the two arch frames 1 are movably connected with two symmetrical adjusting columns 11, the adjusting column 11 is slidably connected with a fixed column 12 at one end away from the arch frame 1, and the two corresponding adjusting columns 11 can slide on their respective corresponding fixed columns 12 through the movement of the arch frame 1, and a movable groove 13 is provided in the fixed column 12, and a plurality of evenly distributed locking grooves 14 are provided on the side of the adjusting column 11 away from the center position, and a positioning frame 15 is fixedly connected to the side of the fixed column 12 away from the center position, and a telescopic rod 16 is slidably connected to the positioning frame 15, and a locking block 17 is fixedly connected to one end of the telescopic rod 16, and a chamfered surface 18 is provided on the lower end surface of the locking block 17, so that the locking block 17 can be locked. The block 17 is engaged with the locking groove 14, and the outer surface of the telescopic rod 16 is respectively sleeved with a spring 19 and an elastic hose 20, which cooperate with the chamfered surface 18 of the lower end surface of the locking block 17. During the rising process of the adjusting column 11, the chamfered surface 18 of the locking block 17 is in contact with the adjusting column 11, so that the adjusting column 11 squeezes the locking block 17 and moves toward the positioning frame 15, so that the spring 19 and the elastic hose 20 are compressed, so as to achieve rapid adjustment of the arch frame 1, and cooperate with the elasticity of the spring 19 and the elastic hose 20, so that the locking block 17 is quickly inserted into the corresponding locking groove 14 after the adjustment is completed, so as to achieve rapid locking of the adjusting column 11, and the two ends of the spring 19 and the elastic hose 20 are respectively fixedly connected to the positioning frame 15 and the fixed column 12, and the upper end surface of the positioning frame 15 is provided with a sliding The slide groove 21 extends into the fixed column 12, and a slider 22 is slidably connected in the slide groove 21. The slider 22 is fixedly connected to the locking block 17. The use of the slide groove 21 and the slider 22 can assist the locking block 17 to slide and limit the locking block 17 to ensure that the locking block 17 is more stable during the sliding process. An installation groove 31 is provided at one end of the adjusting column 11 away from the fixed column 12, and a mounting block 32 is movably connected in the installation groove 31. The mounting block 32 is fixedly connected to the arch frame 1, and the mounting block 32 and the adjusting column 11 are screwed together by a first fixing bolt 33. By using the installation groove 31 and the mounting block 32, the arch frame 1 and two laterally adjacent adjusting columns 11 can be quickly docked, and cooperate with the corresponding first fixing screw The bolt 33 fixes the arch frame 1 and the adjusting column 11 to ensure stability. The two arch frames 1 are fixedly connected to the opposite sides with a plurality of evenly distributed fixing blocks 41. The fixing blocks 41 are provided with connecting grooves 42, and the connecting blocks 43 are clamped in the connecting grooves 42. A connecting rod 44 is fixedly connected between the two opposite connecting blocks 43. The connecting blocks 43 at both ends of the plurality of connecting rods 44 can be connected and supported with two adjacent arch frames 1 to ensure stability between the two adjacent arch frames 1. The fixing blocks 41 and the connecting blocks 43 are screwed together by the third fixing bolts 71, and the third fixing bolts 71 are used to fix the connecting blocks 43 and the fixing blocks 41. The two fixing columns 12 are fixedly connected to the opposite sides of the longitudinal direction with positioning blocks 51.A docking groove 52 is provided on the upper end surface of the positioning block 51, and a docking block 53 is clamped in the docking groove 52. A docking rod 54 is fixedly connected between two longitudinally opposite docking blocks 53. The positioning block 51 and the docking block 53 are screwed together by a second fixing bolt 55. The two docking rods 54 support the longitudinally adjacent fixed columns 12 to ensure the stability of the overall support structure. At the same time, the second fixing bolt 55 is used to fix the docking block 53 and the positioning block 51. A limiting groove 61 is provided on the upper end surface of the fixed column 12, and a limiting strip 62 is slidably connected in the limiting groove 61. The upper end surface of the limit bar 62 is fixed with a limit plate 63, which is slidably connected to the adjustment column 11. The sliding of the limit plate 63 and the limit bar 62 can facilitate the use of the arch frame 1 when the height is lowered, and the locking block 17 is blocked to prevent the locking block 17 from docking and locking with the locking groove 14, which affects the downward adjustment of the arch frame 1. The end of the fixed column 12 away from the adjustment column 11 is fixedly connected with a retaining plate 81, and the retaining holes 82 are opened at the four corners of the retaining plate 81. The bottom of the fixed column 12 can be fixed by the fixing plate and the fixing hole 82 to ensure the stability of its center of gravity.

[0038] Working principle and use process of the utility model: when in use, first, fix the fixing column 12 to the ground through the four fixing holes 82 on the fixing plate 81, dock the two mounting blocks 32 on the lower end surface of the arch frame 1 with the mounting grooves 31 on the two laterally adjacent adjusting columns 11, and fix them through the first fixing bolts 33, dock the connecting blocks 43 at both ends of the connecting rod 44 with the fixing blocks 41 between the two adjacent arch frames 1, fix them with the third fixing bolts 71, dock the docking rod 54 with the positioning block 51 between the two longitudinally adjacent fixing columns 12, and fix them with the second fixing bolts 55, so that the entire supporting structure is sufficiently stable, and finally, according to the height of the lane, move the arch frame 1 upward, and when the two arch frames 1 move upward At the same time, the corresponding adjusting columns 11 will contact the corresponding chamfered surface 18 on the lower side of the locking block 17, squeezing the locking block 17 to move toward the side wall of the tunnel, squeezing the spring 19 and the elastic hose 20. When the arch frame 1 is adjusted to an appropriate height, the spring 19 and the elastic hose 20 rebound, so that the locking block 17 is clamped in the corresponding locking groove 14, and the height of the arch frame 1 is locked. When it is necessary to lower the height of two adjacent arch frames 1, the telescopic rod 16 can be pulled and the limit plate 63 can be moved to block the locking block 17 to prevent the locking block 17 from being stuck in the locking groove 14, and then the arch frame 1 is lowered. After adjustment, the limit plates 63 are removed one by one, and the locking block 17 is docked and locked with the locking groove 14 again, thereby realizing the use process of the entire tunnel support structure.

[0039] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tunnel support structure, comprising two arch frames (1), characterized in that: The lower end surfaces of the two arch frames (1) are movably connected to two symmetrical adjustment columns (11); one end of the adjustment column (11) away from the arch frame (1) is slidably connected to a fixed column (12); a movable groove (13) is provided in the fixed column (12); and a side of the adjustment column (11) away from the center position is provided with a plurality of evenly distributed locking grooves (14); A positioning frame (15) is fixedly connected to one side of the fixed column (12) away from the center position, and a telescopic rod (16) is slidably connected to the positioning frame (15). A locking block (17) is fixedly connected to one end of the telescopic rod (16). A chamfered surface (18) is provided on the lower end surface of the locking block (17). The locking block (17) is clamped with the locking groove (14). A spring (19) and an elastic hose (20) are respectively sleeved on the outer surface of the telescopic rod (16). The two ends of the spring (19) and the elastic hose (20) are respectively fixedly connected to the positioning frame (15) and the fixed column (12). A sliding groove (21) is provided on the upper end surface of the positioning frame (15). The sliding groove (21) extends into the fixed column (12). A sliding block (22) is slidably connected in the sliding groove (21). The sliding block (22) is fixedly connected to the locking block (17).

2. A tunnel support structure according to claim 1, characterized in that: An end of the adjusting column (11) away from the fixing column (12) is provided with a mounting groove (31), a mounting block (32) is movably connected in the mounting groove (31), the mounting block (32) is fixedly connected to the arch frame (1), and the mounting block (32) and the adjusting column (11) are screwed together via a first fixing bolt (33).

3. A tunnel support structure according to claim 1, characterized in that: A plurality of evenly distributed fixing blocks (41) are fixedly connected to opposite sides of the two arch frames (1); the fixing blocks (41) are provided with connecting grooves (42); a connecting block (43) is clamped in the connecting grooves (42); and a connecting rod (44) is fixedly connected between two opposite connecting blocks (43).

4. A tunnel support structure according to claim 1, characterized in that: A positioning block (51) is fixedly connected to one side of the two fixing columns (12) facing each other in the longitudinal direction. A docking groove (52) is provided on the upper end surface of the positioning block (51). A docking block (53) is clamped in the docking groove (52). A docking rod (54) is fixedly connected between the two longitudinally facing docking blocks (53). The positioning block (51) and the docking block (53) are screwed together via a second fixing bolt (55).

5. A tunnel support structure according to claim 1, characterized in that: The upper end surface of the fixed column (12) is provided with a limiting groove (61), a limiting strip (62) is slidably connected in the limiting groove (61), a limiting plate (63) is fixed on the upper end surface of the limiting strip (62), and the limiting plate (63) is slidably connected to the adjusting column (11).

6. A tunnel support structure according to claim 3, characterized in that: The fixing block (41) and the connecting block (43) are screwed together via a third fixing bolt (71).

7. A tunnel support structure according to claim 1, characterized in that: One end of the fixing column (12) away from the adjusting column (11) is fixedly connected to a fixing plate (81), and fixing holes (82) are provided at four corners of the fixing plate (81).

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