Surrounding rock supporting device suitable for excavation of weak surrounding rock

Abstract

The utility model belongs to the technical field of surrounding rock supporting, and discloses a surrounding rock supporting device suitable for weak surrounding rock excavation, the surrounding rock supporting device comprises a supporting frame, a plurality of supporting plates are installed at the top end of the supporting frame, lining plates are movably attached to the top ends of the supporting plates, a plurality of grooves are formed in the top ends of the lining plates, and detectors are arranged in the grooves in the lining plates; when the supporting frame needs to be disassembled, a pulling plate is placed in an inserting groove in the bottom end of the disc base, an adjusting screw rod is rotated downwards to enable a limiting baffle to be attached to the pulling plate, then a locking screw rod is rotated upwards, the pulling plate is inserted into the inserting groove in the bottom end of the disc base, and therefore the supporting frame can be disassembled. And the expansion supporting seat is separated from the ground, and the hydraulic supporting rod is controlled to contract, so that the supporting frame can be pushed to move to a required position through the rollers for continuous use.

Description

Technical Field

[0001] The present application relates to the technical field of surrounding rock support, and more specifically, to a surrounding rock support device suitable for excavation of soft surrounding rocks. Background Art

[0002] During the tunnel construction process, due to the different geological conditions in different regions, soft surrounding rock is prone to appear in the excavated tunnel. Since the surrounding rock has high instability, it is easy to collapse during the tunnel construction process. In order to ensure the safety of construction workers, it is often necessary to use surrounding rock support devices to provide support for the surrounding rock in the tunnel.

[0003] When some existing rock support devices are placed in a tunnel for rock support, a support frame and a protective plate are lifted up by a hydraulic push rod so that the protective plate provides support and protection on the surface of the surrounding rock. This type of protection method has high stability. However, in actual use, due to the lack of a rolling mechanism at the bottom end of the hydraulic push rod, it is not convenient to disassemble the support frame at a later time and transfer the support frame to other locations in the tunnel for support. The support frame can only be transported by disassembling the support frame, which is relatively inconvenient.

[0004] In order to solve the above problems, the present application provides a surrounding rock support device suitable for excavation of soft surrounding rocks. Utility Model Content

[0005] The present application provides a surrounding rock support device suitable for excavation of soft surrounding rocks, which adopts the following technical solution:

[0006] A surrounding rock support device suitable for excavating soft surrounding rocks comprises a support frame, a plurality of support plates are installed on the top of the support frame, and the tops of the plurality of support plates are movably fitted with lining plates, the tops of the lining plates are provided with a plurality of grooves, and the grooves on the lining plates are provided with detectors, and the bottom end of the support frame is provided with a plurality of hydraulic support rods, and the bottom ends of the hydraulic support rods are provided with support mechanisms.

[0007] Through the above technical solution, during use, the lining plate is supported by the hydraulic support rod, and the inner wall of the tunnel is supported by the lining plate, which can provide support for the inner wall of the tunnel and play a protective role.

[0008] Furthermore, the support mechanism includes a disc seat, and four threaded through holes are provided at the upper and lower ends of the disc seat, and locking screws are provided in the threaded through holes on the disc seat, and an expansion support seat is installed at the bottom end of the locking screw.

[0009] Through the above technical solution, by controlling the locking screw to move downward and making the expansion support seat contact the ground, the support frame can be supported and the position can be fixed.

[0010] Furthermore, a plug-in groove is provided at the bottom end of the disc seat, and a pull-out plate is provided in the plug-in groove. A U-shaped block is fixedly installed at the bottom end of the pull-out plate, and two rollers are installed in the U-shaped groove on the U-shaped block.

[0011] Through the above technical solution, it is convenient to make the roller fit the ground during use, and the support frame is pushed to move by the rolling of the roller.

[0012] Furthermore, a protrusion is fixedly mounted on the outer wall of the disc seat, a threaded hole is provided on the protrusion, and an adjusting screw is provided in the threaded hole on the protrusion, and a limit baffle is provided below the adjusting screw.

[0013] Through the above technical solution, it is convenient to control the limit baffle to move downward by adjusting the screw during use, so as to prevent the pull-out plate from sliding out at the bottom end of the disc seat.

[0014] Furthermore, a hinge is fixedly installed at the bottom end of the adjusting screw, and the side of the hinge that is not connected to the adjusting screw is fixedly connected to a limit baffle.

[0015] The above technical solution can prevent the adjusting screw from being fixedly connected to the limit baffle and being unable to rotate.

[0016] Furthermore, the detector is assembled from a stress sensor and a displacement sensor, and both the stress sensor and the displacement sensor are fixedly installed in a groove on the lining plate.

[0017] Through the above technical solution, the inner wall of the tunnel can be monitored, which facilitates further adjustments and arrangements for personnel evacuation.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] When the support frame needs to be disassembled, place the pull-out plate into the plug-in groove at the bottom end of the disc seat, and turn the adjusting screw downward to make the limit baffle fit the pull-out plate, and then turn the locking screw upward to make the expansion support seat break away from contact with the ground, and control the hydraulic support rod to retract, and then push the support frame to the desired position through the roller for continued use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a schematic diagram of the support frame structure of this application;

[0022] Figure 3 This is a schematic diagram of the support mechanism structure of this application;

[0023] Figure 4 This is a schematic diagram of the partial structure of the support mechanism of this application.

[0024] Description of the numbers in the figure:

[0025] 1. Support frame; 2. Support plate; 3. Lining plate; 4. Detector; 5. Hydraulic support rod; 6. Support mechanism; 7. Disc seat; 8. Locking screw; 9. Expansion support seat; 10. Threaded through hole; 11. Bump; 12. Adjusting screw; 13. Limit baffle; 14. Pull-out plate; 15. U-shaped block; 16. Roller. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Example:

[0030] The present application embodiment discloses a surrounding rock support device suitable for excavation of soft surrounding rocks, please refer to Figure 1 and Figure 2, including a support frame 1, a plurality of support plates 2 are installed on the top of the support frame 1, and the tops of the plurality of support plates 2 are movably fitted with lining plates 3, the tops of the lining plates 3 are provided with a plurality of grooves, and the grooves on the lining plates 3 are provided with detectors 4, the bottom end of the support frame 1 is provided with a plurality of hydraulic support rods 5, and the bottom ends of the hydraulic support rods 5 are installed with supporting mechanisms 6, the lining plates 3 are supported by the support frame 1 and the support plates 2, and the lining plates 3 provide support for the inside of the tunnel to prevent the collapse of the weak surrounding rock.

[0031] See also Figure 3 and Figure 4 The supporting mechanism 6 includes a disc seat 7, four threaded through holes 10 are provided at the upper and lower ends of the disc seat 7, and locking screws 8 are provided in the threaded through holes 10 on the disc seat 7, and an expansion support seat 9 is installed at the bottom end of the locking screw 8. By controlling the locking screw 8 to rotate downward, the bottom end of the expansion support seat 9 is driven to fit the ground, thereby providing support and stability to the support frame 1.

[0032] See also Figure 3 and Figure 4 A plug-in groove is provided at the bottom end of the disc seat 7, and a pull-out plate 14 is provided in the plug-in groove. A U-shaped block 15 is fixedly installed at the bottom end of the pull-out plate 14. Two rollers 16 are installed in the U-shaped groove on the U-shaped block 15. By moving the locking screw 8 upward, the rollers 16 are in contact with the ground, which is convenient for pushing the support frame 1 to move and adjust the position for use later.

[0033] See also Figure 3 and Figure 4 A protrusion 11 is fixedly installed on the outer wall of the disc seat 7, and a threaded hole is provided on the protrusion 11. An adjusting screw 12 is provided in the threaded hole on the protrusion 11, and a limit baffle 13 is provided below the adjusting screw 12. During use, by controlling the adjusting screw 12 to move downward, the limit baffle 13 can be used to limit the pull-out plate 14 from being displaced without reason.

[0034] See also Figure 3 and Figure 4 A hinge is fixedly installed at the bottom end of the adjusting screw 12, and the side of the hinge not connected to the adjusting screw 12 is fixedly connected to the limit baffle 13 to prevent the adjusting screw 12 from being fixedly connected to the limit baffle 13, and the limit baffle 13 is restricted by the disc seat 7 and cannot rotate with the adjusting screw 12, resulting in the adjusting screw 12 being fixedly rotated to adjust the height of the limit baffle 13.

[0035] See also Figure 1 and Figure 2 The detector 4 is assembled from a stress sensor and a displacement sensor, and both the stress sensor and the displacement sensor are fixedly installed in a groove on the lining plate 3, so as to provide protection for the soft surrounding rock on the tunnel.

[0036] The implementation principle of this embodiment is as follows: when in use, the electrical appliances on the support device are first started by an external power supply, the lining plate 3 is first used to support the weak surrounding rock, and the support frame 1 is moved to the bottom of the lining plate 3 by rolling the roller 16, the locking screw 8 is controlled to move upward, the bottom end of the expansion support seat 9 is brought into contact with the ground, and the limit baffle 13 is rotated upward, the pull-out plate 14 is removed from the disc seat 7, and then the hydraulic support rod 5 is controlled to telescope upward, so that the support plate 2 fits the lining plate 3 to provide support for the weak surrounding rock.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A surrounding rock support device suitable for excavation of soft surrounding rocks, comprising a support frame (1), characterized in that: A plurality of support plates (2) are mounted on the top of the support frame (1), and a lining plate (3) is movably fitted to the top of each of the support plates (2). A plurality of grooves are provided on the top of each of the lining plates (3), and detectors (4) are provided in the grooves on each of the lining plates (3). A plurality of hydraulic support rods (5) are provided on the bottom of the support frame (1), and a support mechanism (6) is mounted on the bottom of each of the hydraulic support rods (5).

2. A surrounding rock support device suitable for excavation of soft surrounding rocks according to claim 1, characterized in that: The support mechanism (6) comprises a disc seat (7), wherein four threaded through holes (10) are provided at the upper and lower ends of the disc seat (7), and locking screws (8) are provided in the threaded through holes (10) on the disc seat (7), and an expansion support seat (9) is installed at the bottom end of each locking screw (8).

3. A surrounding rock support device suitable for excavation of soft surrounding rocks according to claim 2, characterized in that: The bottom end of the disc seat (7) is provided with a plug-in groove, and a pull-out plate (14) is provided in the plug-in groove. A U-shaped block (15) is fixedly mounted on the bottom end of the pull-out plate (14), and two rollers (16) are mounted in the U-shaped groove on the U-shaped block (15).

4. The surrounding rock support device suitable for excavation of soft surrounding rock according to claim 2, characterized in that: A protrusion (11) is fixedly mounted on the outer wall of the disc seat (7), the protrusion (11) is provided with a threaded hole, and an adjusting screw (12) is provided in each of the threaded holes on the protrusion (11), and a limit baffle (13) is provided below the adjusting screw (12).

5. The surrounding rock support device suitable for excavation of soft surrounding rock according to claim 4, characterized in that: A hinge is fixedly mounted on the bottom end of the adjusting screw (12), and the side of the hinge not connected to the adjusting screw (12) is fixedly connected to a limit baffle (13).

6. The surrounding rock support device suitable for excavation of soft surrounding rock according to claim 1, characterized in that: The detector (4) is assembled from a stress sensor and a displacement sensor, and both the stress sensor and the displacement sensor are fixedly mounted in a groove on the lining plate (3).

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