Surrounding rock reinforcing device of roadway soft roof rock stratum

Abstract

A surrounding rock reinforcing device of a roadway soft roof rock stratum comprises a roof, supporting legs are arranged at the bottom end of the roof, the roof comprises a first supporting plate and a second supporting plate, the upper end of the first supporting plate is detachably connected with the upper end of the second supporting plate in an assembled mode, and first supporting rods which are obliquely and upwards arranged are detachably arranged between the first supporting plate and the supporting legs; second supporting rods symmetrical to the first supporting rods are arranged between the second supporting plate and the supporting legs, the bottom end of the first supporting plate and the bottom end of the second supporting plate are detachably fixed to the top ends of the supporting legs, and a plurality of first supporting blocks arranged at intervals are fixed to the upper end of the first supporting plate. A plurality of second supporting blocks which are uniformly arranged at intervals are fixed at the upper end of the second supporting plate; the first supporting blocks are in butt joint in the clamping grooves between the second supporting blocks, and the second supporting blocks are in butt joint in the clamping grooves between the first supporting blocks. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel reinforcement, in particular to a surrounding rock reinforcement device for a tunnel with weak roof rock layer. Background Art

[0002] Minerals such as coal are important energy materials and are widely used in industrial production and other fields. Since coal mines are generally hidden underground, coal mining operations are also underground operations. When mining underground, materials are generally transported and personnel enter and exit coal mine tunnels. The stability of coal mine tunnels is related to mining safety. After the tunnel is excavated, it needs to be supported to ensure the stability of the tunnel. The existing tunnel support devices are generally large in size. Due to the small size of the tunnel, it is very inconvenient to transport from the ground to the tunnel for assembly. It is not only inconvenient for production, but also more inconvenient for transportation, which brings great inconvenience to on-site construction personnel and affects work efficiency. Utility Model Content

[0003] In order to solve the technical problem that the existing tunnel surrounding rock reinforcement devices are large in size and inconvenient to install, the utility model provides a tunnel soft roof rock reinforcement device, including a roof, a bottom end of the top plate is provided with a plurality of height-adjustable support legs, the support legs include a vertically arranged support tube, the upper end of the support tube is slidably sleeved with a column, the top end of the column is detachably fixed to the bottom end of the top plate through a flange; the support tube is provided with a plurality of fixing holes evenly spaced from top to bottom, the column is provided with fixing holes corresponding to the support tube, the column is detachably fixed to the support tube through a pin shaft, when the height needs to be adjusted, the pin shafts in the respective fixing holes are removed respectively, after adjusting the height of the column, the pin shafts are respectively inserted into the fixing holes. The top plate includes a first support plate and a second support plate that are symmetrically arranged. The upper ends of the first support plate and the second support plate are detachably assembled and connected. The first support plate and the second support plate are enclosed in an arch shape. A first support rod that is detachably arranged upward and inclined is detachably arranged between the first support plate and the support leg. A second support rod that is symmetrically arranged with the first support rod is arranged between the second support plate and the support leg. The bottom ends of the first support plate and the second support plate can be detachably fixed to the top ends of each support leg. A plurality of first support blocks that are spaced apart are fixed to the upper end of the first support plate, and a plurality of second support blocks that are evenly spaced are fixed to the upper end of the second support plate. The first support block is docked in the clamping groove between each second support block, and the second support block is docked in the clamping groove between each first support block. Assembly through holes are provided on the first support block and the second support block. After the first support block and the second support block are docked, the first support block and the second support block are connected by a hinge shaft, and the top plate is arranged in a manner in which the first support plate and the second support plate are detachably connected, which is convenient for transportation and installation.

[0004] Preferably, an electric push rod for adjusting the height of the column is provided in the support tube, the bottom end of the electric push rod is fixed to the bottom of the support tube, and the top end of the electric push rod is fixed to the bottom end of the column.

[0005] Preferably, a support is fixed to the bottom end of the support tube, and a vertically arranged fixing through hole is opened on the support. When in use, the support is fixed to the ground by fixing bolts to increase stability.

[0006] Preferably, a third support rod is detachably provided between the first support rod and the first support plate, and a third support rod is detachably provided between the second support rod and the second support plate. The provision of the first support rod, the second support rod and the third support rod can enhance the stability of the device.

[0007] The above solution has the following advantages:

[0008] The top plate is arranged in a detachable manner with the first support plate and the second support plate, which is convenient for transporting the top plate from the ground to the tunnel, and is convenient for assembly and disassembly, thereby improving the work efficiency of the installers; the legs are arranged to be height-adjustable, and the height of the top plate can be adjusted according to the needs of on-site construction; the first support rod and the second support rod are arranged to support and fix the top plate, thereby improving the stability and at the same time being able to improve the bearing capacity of the top plate; the first support block and the second support block are penetrated by the hinge shaft, which can play a connecting role, thereby avoiding the displacement of the first support block and the second support block causing insufficient bearing capacity of the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0010] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0011] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 4 It is a left-side structural schematic diagram of the utility model.

[0013] Figure numerals: 1, top plate; 2, support leg; 11, first support plate; 12, second support plate; 13, first support block; 14, second support block; 141, snap-in groove; 15, hinge shaft; 16, flange; 17, first support rod; 18, second support rod; 19, third support rod; 21, support tube; 22, column; 23, fixing hole; 24, pin shaft; 25, support. DETAILED DESCRIPTION

[0014] like Figure 1-4As shown, a surrounding rock reinforcement device for a soft roof rock layer in a tunnel comprises a roof 1, and a plurality of height-adjustable legs 2 are provided at the bottom end of the roof 1, the legs comprising a vertically arranged support tube 21, a column 22 is slidably sleeved on the upper end of the support tube 21, and the top of the column 22 is detachably fixed to the bottom end of the roof 1 through a flange 16; a plurality of evenly spaced fixing holes 23 are provided on the support tube 21 from top to bottom, and fixing holes 23 corresponding to the support tube 21 are provided on the column 22, and the column 22 is detachably fixed to the support tube 21 through a pin 24. When the height needs to be adjusted, the pins 24 in each fixing hole 23 are removed respectively, and after adjusting the height of the column 22, the pins 24 are respectively inserted into the fixing holes 23. The top plate 1 includes a first support plate 11 and a second support plate 12 which are symmetrically arranged. The upper ends of the first support plate 11 and the second support plate 12 are detachably assembled and connected. The first support plate 11 and the second support plate 12 are arranged in an arch shape. A first support rod 17 which is arranged obliquely upward is detachably arranged between the first support plate 11 and the supporting leg 2. A second support rod 18 which is symmetrically arranged with the first support rod is arranged between the second support plate 12 and the supporting leg 2. The bottom ends of the first support plate 11 and the second support plate 12 can be detachably fixed to the top ends of the respective supporting legs 2. A plurality of first support blocks 13 which are arranged at intervals are fixed to the upper end of the first support plate 11, and a plurality of second support blocks 14 which are arranged at even intervals are fixed to the upper end of the second support plate 12; the first support block 13 is docked in the clamping groove 141 between the respective second support blocks 14, and the second support block is docked in the clamping groove 141 between the respective first support blocks 13. The first support block 13 and the second support block 14 are both provided with assembly through holes. After the first support block 13 and the second support block 14 are connected, the first support block 13 and the second support block 14 are connected by the hinge shaft 15, and the top plate 1 is configured in a manner that the first support plate 11 and the second support plate 12 are detachably connected, which is convenient for transportation and installation.

[0015] Preferably, an electric push rod (not shown in the drawings of the specification) for adjusting the height of the column is provided in the support tube 21 , the bottom end of the electric push rod is fixed to the bottom of the support tube 21 , and the top end of the electric push rod is fixed to the bottom end of the column 22 .

[0016] Preferably, a support 25 is fixed to the bottom end of the support tube 21 , and a vertical fixing through hole is opened on the support 25 . When in use, the support 25 is fixed to the ground by fixing bolts to increase stability.

[0017] Preferably, a third support rod 19 is detachably provided between the first support rod 17 and the first support plate 11, and a third support rod 19 is detachably provided between the second support rod 18 and the second support plate 12. The provision of the first support rod 17, the second support rod 18 and the third support rod 19 can enhance the stability of the device.

[0018] Usage process:

[0019] When the utility model is in use, firstly, the support tubes 21 are fixed to the ground one by one according to the needs, and then the column 22 is sleeved on the upper end of the support tube 21, and the column 22 is fixed to the support tube 21 through the pin shaft 24, then the first support plate 11 is fixed to the top end of the column 22 through the flange 16, and then the bottom end of the second support plate 12 is fixed to the top end of the column 22 on the opposite side of the first support plate 11 through the flange 16; the first support block 13 is docked in the clamping groove 141 between each second support block 14, and the second support block is docked in the clamping groove 141 between each first support block 13, and then the hinge shaft 15 is sequentially passed through the first support block 13 and the second support block 14; then the pin in the fixing hole 23 is pulled out, the electric push rod is started, and the length of the leg 2 is adjusted. After the height adjustment of the leg 2 is completed, the column 22 is fixed to the support tube 21 through the pin shaft 24.

[0020] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A surrounding rock reinforcement device for a weak roof rock layer of a tunnel, comprising a roof, a plurality of height-adjustable legs are provided at the bottom end of the roof, and is characterized in that: The top plate includes a first support plate and a second support plate which are symmetrically arranged. The upper ends of the first support plate and the second support plate are detachably assembled and connected. The first support plate and the second support plate form an arch shape. A first support rod which is detachably arranged upwardly and inclined is provided between the first support plate and the support leg. A second support rod which is symmetrically arranged with the first support rod is provided between the second support plate and the support leg. The bottom ends of the first support plate and the second support plate are both detachably fixed to the top ends of the respective support legs.

2. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 1, characterized in that: A plurality of first support blocks which are spaced apart are fixed to the upper end of the first support plate, and a plurality of second support blocks which are spaced apart are fixed to the upper end of the second support plate; the first support blocks are docked in the snap-fit ​​grooves between the second support blocks, and the second support blocks are docked in the snap-fit ​​grooves between the first support blocks.

3. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 2 is characterized by: The first support block and the second support block are both provided with assembly through holes. After the first support block and the second support block are butt-jointed, the first support block and the second support block are connected via a hinge shaft.

4. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 1, characterized in that: The support leg includes a vertically arranged support tube, the upper end of which is slidably sleeved with a column, and the top of the column is removably fixed to the bottom end of the top plate through a flange; a plurality of evenly spaced fixing holes are provided on the support tube from top to bottom, and a fixing hole corresponding to the support tube is provided on the column, and the column is removably fixed to the support tube through a pin shaft.

5. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 4, characterized in that: An electric push rod for adjusting the height of the column is arranged in the support tube, the bottom end of the electric push rod is fixed to the bottom of the support tube, and the top end of the electric push rod is fixed to the bottom end of the column.

6. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 5, characterized in that: A support is fixed at the bottom end of the support tube, and a vertically arranged fixing through hole is opened on the support.

7. The surrounding rock reinforcement device for soft roof rock layer of a tunnel according to claim 1, characterized in that: A third support rod is detachably provided between the first support rod and the first support plate, and a third support rod is detachably provided between the second support rod and the second support plate.

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