Supporting device for preventing two sides of roadway from caving

Abstract

The utility model relates to the technical field of roadway supporting under a metal mine, in particular to a roadway two-side wall caving prevention supporting device which comprises two vertical plates and a transverse plate, mounting grooves are vertically formed in the upper surfaces of the vertical plates, and L-shaped supporting plates are vertically arranged in the mounting grooves in a sliding mode through limiting components; two pairs of embedded rods are vertically and fixedly mounted on the lower surface of the bottom plate, a movable plate is fixedly mounted in the placement groove through first spring rods, transverse nails are fixedly mounted on the surface of the movable plate, an inclined plate is fixedly mounted at the top end of the movable plate, and two second spring rods are fixedly mounted on the upper surface of the bottom plate; a mounting plate is fixedly mounted at the top end of the second spring rod, and trapezoidal plates are vertically, symmetrically and fixedly mounted on the lower surface of the mounting plate. The embedded rod is not simply and vertically inserted into the soil layer, but is in a cross shape in the soil layer under the cooperation of the inclined plate and the trapezoidal plate, so that the road holding force of the embedded rod is enhanced, and the effect of fixing the supporting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support in metal mines, in particular to a tunnel two-side anti-flaking support device. Background Art

[0002] During the excavation construction of underground tunnels in metal mines, support devices are often used, mainly to support the soft mine walls on both sides of the tunnel to protect the workers.

[0003] The bottom of the existing support device is usually simply embedded in the soil layer through a simple pre-embedded rod, which makes the pre-embedded rod easily displaced in the soil layer due to external vibration, causing the overall position of the support device to move, and the effect of the fixing device is poor. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the bottom of the existing support device is usually only vertically inserted in the soil layer by a simple pre-buried rod, which makes the pre-buried rod easily displaced in the soil layer under the action of external vibration, so that the overall position of the support device moves, and the effect of the fixing device is poor, and a tunnel two-side anti-flaking support device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tunnel side anti-flaking support device comprises two vertical plates and a horizontal plate, wherein the upper surface of the vertical plate is vertically provided with a mounting groove, an L-shaped support plate is vertically slidably arranged in the mounting groove through a limiting component, and a mounting opening is horizontally provided in the side wall of the horizontal plate, the top ends of the two support plates are both slidably arranged in the mounting opening, and the support plates are locked by a locking assembly;

[0007] A base plate is fixedly installed at the bottom of the vertical plate, two pairs of embedded rods are vertically fixedly installed on the lower surface of the base plate, a placement groove is vertically opened at the top of the embedded rod, a movable plate is fixedly installed in the placement groove through a first spring rod, a cross nail is fixedly installed on the surface of the movable plate, a through hole is opened on the surface of the embedded rod for the end of the cross nail to pass through, an inclined plate is fixedly installed on the top of the movable plate, two second spring rods are fixedly installed on the upper surface of the base plate, a mounting plate is fixedly installed on the top of the second spring rod, a trapezoidal plate is vertically symmetrically fixedly installed on the lower surface of the mounting plate, a plurality of through holes are vertically opened on the upper surface of the base plate, which are respectively connected with a plurality of placement grooves, a plurality of trapezoidal plates are respectively inserted into a plurality of placement grooves, and the inclined surfaces are respectively arranged face to face with the inclined surfaces of a plurality of inclined plates.

[0008] Preferably, fixing plates are fixedly mounted on the front and rear surfaces of the bottom plate, and an L-shaped limiting rod is rotatably mounted on the upper surface of the fixing plate.

[0009] Preferably, the locking assembly includes a locking rod and a telescopic spring sleeved on the locking rod, a plurality of locking grooves are provided on the surface of the support plate, a socket is provided on the surface of the vertical plate, the locking rod is slidably inserted in the socket, and a handle is fixedly installed at one end, and the two ends of the telescopic spring are respectively fixedly connected to the handle and the vertical plate.

[0010] Preferably, the limiting component includes a limiting block fixedly mounted on the surface of the support plate and a limiting groove vertically opened on the wall of the installation groove, and the limiting block is vertically slidably arranged in the limiting groove.

[0011] Preferably, an auxiliary fixing component is provided in the installation groove, and the auxiliary fixing component is used for auxiliary fixing of the vertical plate.

[0012] Preferably, the auxiliary fixing component includes a threaded rod horizontally rotatably installed in the installation groove, a slide plate threadedly sleeved on the threaded rod and a plurality of fixed side nails fixedly installed on the surface of the slide plate, the side wall of the vertical plate is provided with a plurality of circular holes corresponding to the positions of the fixed side nails, and the plurality of fixed side nails are respectively slidably inserted into the plurality of circular holes, and one end of the threaded rod passes through the vertical plate and is fixedly installed with an adjusting wheel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The embedded rods are no longer simply inserted vertically into the soil layer, but will be cross-shaped in the soil layer under the cooperation between the inclined plate and the trapezoidal plate, thereby strengthening the grip of the embedded rods and improving the effect of the fixed support device;

[0015] The height and width of the supporting device can be adjusted, thereby facilitating the support of tunnels of different sizes and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front three-dimensional structural schematic diagram of a tunnel two-side anti-flaking support device proposed by the utility model;

[0017] Figure 2 It is a schematic diagram of a partial back three-dimensional cross-sectional structure of a tunnel two-side anti-flaking support device proposed by the utility model;

[0018] Figure 3 It is a partial three-dimensional cross-sectional structural diagram of a tunnel two-side anti-flaking support device proposed by the utility model;

[0019] Figure 4 for Figure 1 A magnified view of the structure at center;

[0020] Figure 5 for Figure 2 A magnified view of the structure at B in the middle;

[0021] Figure 6 for Figure 2 Enlarged view of the structure at point C in the middle.

[0022] In the figure: 1 vertical plate, 2 horizontal plate, 3 support plate, 4 bottom plate, 5 embedded rod, 6 first spring rod, 7 horizontal nail, 8 inclined plate, 9 second spring rod, 10 mounting plate, 11 trapezoidal plate, 12 limiting rod, 13 locking rod, 14 telescopic spring, 15 locking groove, 16 limit block, 17 limit groove, 18 threaded rod, 19 slide plate, 20 fixed side nail. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0025] Reference Figure 1-Figure 6 , a tunnel two-side anti-flaking support device, comprising two vertical plates 1 and a horizontal plate 2, the upper surface of the vertical plate 1 is vertically provided with a mounting groove, an L-shaped support plate 3 is vertically slidably arranged in the mounting groove through a limiting component, the limiting component comprises a limiting block 16 fixedly installed on the surface of the support plate 3 and a limiting groove 17 vertically provided on the wall of the mounting groove, the limiting block 16 is vertically slidably arranged in the limiting groove 17, the side wall of the horizontal plate 2 is horizontally provided with a mounting opening, the top ends of the two support plates 3 are both slidably arranged in the mounting opening, and the support plates 3 are locked by a locking assembly;

[0026] A bottom plate 4 is fixedly installed at the bottom of the vertical plate 1, and two pairs of embedded rods 5 are vertically fixedly installed on the lower surface of the bottom plate 4. A placement groove is vertically opened at the top of the embedded rod 5, and a movable plate is fixedly installed in the placement groove through a first spring rod 6. A cross nail 7 is fixedly installed on the surface of the movable plate, and a through hole for the end of the cross nail 7 to pass through is opened on the surface of the embedded rod 5. An inclined plate 8 is fixedly installed on the top of the movable plate, and two second spring rods 9 are fixedly installed on the upper surface of the bottom plate 4. A mounting plate 10 is fixedly installed on the top of the second spring rod 9. A trapezoidal plate 11 is vertically and symmetrically fixedly installed on the lower surface of the mounting plate 10. A plurality of through openings respectively connected to a plurality of placement grooves are vertically opened on the upper surface of the bottom plate 4, and a plurality of trapezoidal plates 11 are respectively inserted into a plurality of placement grooves, and the inclined surfaces are respectively arranged face to face with the inclined surfaces of the plurality of inclined plates 8. Fixed plates are fixedly installed on the front and rear surfaces of the bottom plate 4, and an L-shaped limiting rod 12 is rotatably installed on the upper surface of the fixed plate;

[0027] First, multiple embedded rods 5 are vertically inserted into the soil layer, and then multiple mounting plates 10 are pressed downward. During the downward movement of multiple trapezoidal plates 11, the inclined surfaces will respectively slide in contact with the inclined surfaces of multiple inclined plates 8. Then, under the action of the inclined surfaces pressing, multiple first spring rods 6 will shrink, and the ends of multiple cross nails 7 will respectively pass through multiple through holes and insert into the soil layer, so that the embedded rods 5 are in a cross shape in the soil layer. The embedded rods 5 are no longer simply vertically inserted in the soil layer, thereby strengthening the grip of the embedded rods 5 and improving the effect of the fixed support device.

[0028] Then, the limiting rod 12 is rotated to be above the mounting plate 10. At this time, the mounting plate 10 is released, and the mounting plate 10 is blocked by the limiting rod 12 and cannot move upward, thereby achieving the effect of locking the movable plate.

[0029] The locking assembly includes a locking rod 13 and a telescopic spring 14 sleeved on the locking rod 13. A plurality of locking grooves 15 are provided on the surface of the support plate 3. A socket is provided on the surface of the vertical plate 1. The locking rod 13 is slidably inserted into the socket, and a handle is fixedly installed at one end. The two ends of the telescopic spring 14 are fixedly connected to the handle and the vertical plate 1 respectively.

[0030] The two support plates 3 can move horizontally in the transverse plate 2, and can also move vertically in the two vertical plates 1 respectively. When the support plates 3 move to a suitable position in the vertical plates 1, the position of the support plates 3 can be locked by controlling the end of the locking rod 13 to enter the locking groove 15 corresponding to its own position. The height and width of the support device can be adjusted, so as to facilitate the support of tunnels of different sizes and improve the practicability of the device.

[0031] An auxiliary fixing component is provided in the installation groove, and the auxiliary fixing component is used to assist in fixing the vertical plate 1. The auxiliary fixing component includes a threaded rod 18 horizontally rotatably installed in the installation groove, a slide plate 19 threadedly sleeved on the threaded rod 18, and a plurality of fixed side nails 20 fixedly installed on the surface of the slide plate 19. A plurality of circular holes corresponding to the positions of the fixed side nails 20 are opened on the side wall of the vertical plate 1, and the plurality of fixed side nails 20 are slidably inserted into the plurality of circular holes, respectively. One end of the threaded rod 18 passes through the vertical plate 1 and is fixedly installed with an adjusting wheel;

[0032] When the side wall of the vertical plate 1 abuts against the coal wall, the threaded rod 18 is rotated to make the slide plate 19 threadedly sleeved on the threaded rod 18 move horizontally with the multiple side nails 20, so that the ends of the multiple side nails 20 are inserted into the coal wall, thereby playing the role of assisting in fixing the vertical plate 1.

[0033] In the utility model, firstly, the plurality of embedded rods 5 are vertically inserted into the soil layer, and then the plurality of mounting plates 10 are pressed downwards. During the downward movement of the plurality of trapezoidal plates 11, the inclined surfaces will respectively slide in contact with the inclined surfaces of the plurality of inclined plates 8, and then, under the action of the inclined surface pressing, the plurality of first spring rods 6 will shrink, and the ends of the plurality of cross nails 7 will respectively pass through the plurality of through openings and be inserted into the soil layer, so that the embedded rods 5 are in a cross shape in the soil layer, and the embedded rods 5 are no longer simply vertically inserted in the soil layer, thereby strengthening the grip of the embedded rods 5 and improving the effect of the fixed support device.

[0034] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tunnel side anti-flaking support device, comprising two vertical plates (1) and a horizontal plate (2), characterized in that: The upper surface of the vertical plate (1) is vertically provided with a mounting groove, an L-shaped support plate (3) is vertically slidably arranged in the mounting groove via a limiting component, the side wall of the horizontal plate (2) is horizontally provided with a mounting opening, the top ends of the two support plates (3) are both slidably arranged in the mounting opening, and the support plates (3) are locked by a locking assembly; A bottom plate (4) is fixedly mounted on the bottom of the vertical plate (1), two pairs of embedded rods (5) are vertically fixedly mounted on the lower surface of the bottom plate (4), a placement groove is vertically opened at the top of the embedded rod (5), a movable plate is fixedly mounted in the placement groove via a first spring rod (6), a transverse nail (7) is fixedly mounted on the surface of the movable plate, a through hole is opened on the surface of the embedded rod (5) for the end of the transverse nail (7) to pass through, an inclined plate (8) is fixedly mounted on the top of the movable plate, two second spring rods (9) are fixedly mounted on the upper surface of the bottom plate (4), a mounting plate (10) is fixedly mounted on the top of the second spring rod (9), a trapezoidal plate (11) is vertically and symmetrically fixedly mounted on the lower surface of the mounting plate (10), a plurality of through holes respectively connected to the plurality of placement grooves are vertically opened on the upper surface of the bottom plate (4), a plurality of the trapezoidal plates (11) are respectively inserted into the plurality of placement grooves, and the inclined surfaces are respectively arranged face to face with the inclined surfaces of the plurality of inclined plates (8).

2. A tunnel side anti-flaking support device according to claim 1, characterized in that: The front and rear surfaces of the bottom plate (4) are both fixedly mounted with fixing plates, and the upper surface of the fixing plate is rotatably mounted with an L-shaped limiting rod (12).

3. A tunnel side anti-flaking support device according to claim 1, characterized in that: The locking assembly comprises a locking rod (13) and a telescopic spring (14) sleeved on the locking rod (13); a plurality of locking grooves (15) are provided on the surface of the support plate (3); a socket is provided on the surface of the vertical plate (1); the locking rod (13) is slidably inserted into the socket, and a handle is fixedly installed at one end; the two ends of the telescopic spring (14) are respectively fixedly connected to the handle and the vertical plate (1).

4. A tunnel side anti-flaking support device according to claim 1, characterized in that: The limiting component comprises a limiting block (16) fixedly mounted on the surface of the support plate (3) and a limiting groove (17) vertically opened on the wall of the installation groove, and the limiting block (16) is vertically slidably arranged in the limiting groove (17).

5. A tunnel side anti-flaking support device according to claim 1, characterized in that: An auxiliary fixing component is arranged in the installation groove, and the auxiliary fixing component is used for auxiliary fixing of the vertical plate (1).

6. A tunnel side anti-flaking support device according to claim 5, characterized in that: The auxiliary fixing component comprises a threaded rod (18) horizontally rotatably installed in the installation groove, a slide plate (19) threadedly sleeved on the threaded rod (18), and a plurality of fixing side nails (20) fixedly installed on the surface of the slide plate (19); a plurality of circular holes corresponding to the positions of the fixing side nails (20) are opened on the side wall of the vertical plate (1); a plurality of the fixing side nails (20) are slidably inserted into the plurality of circular holes respectively; one end of the threaded rod (18) passes through the vertical plate (1) and is fixedly installed with an adjusting wheel.

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