Anti-slip device for filling wall body in gob-side entry retaining roadway

Abstract

The utility model relates to an anti-slip device for a filling wall in a gob-side entry retaining roadway, which belongs to the technical field of mining and comprises a bottom plate and an anti-slip plate, a connecting block is mounted on the bottom plate, abutting rods are slidably connected to the interiors of two sides of the connecting block, a fixed inclined rod is hinged to the connecting block, and the fixed inclined rod is hinged to the anti-slip plate. The anti-skid plate is provided with the fine adjustment device for locking and fixing the inclined rod, the position of the anti-skid plate is adjusted in a hinged mode on one side of the bottom plate, and then the anti-skid plate and the bottom plate are connected and supported through the fixing inclined rod, so that the anti-skid plate firmly abuts against a filling wall. The wall baffle and the filling wall can be fixed into a whole, bulging, expansion and transverse deformation of the filling wall are prevented, large stress resistance is achieved, the filling wall is prevented from sliding, a triangle is formed, the stability of the wall baffle can be enhanced, lateral stress borne by the filling wall can be evenly distributed, and the stress is released to a top plate and a bottom plate of a roadway; therefore, the stability of gob-side entry retaining is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to an anti-slip device for filling walls in a gob-side lane retaining tunnel. Background Art

[0002] The goaf-retained roadway is a roadway that is connected to the goaf after the previous section of the working face is mined. A narrow filling strip is left on the side of the goaf to separate the original roadway from the goaf. The goaf collapses after pressure and the roadway is retained, forming a goaf-retained roadway for ventilation during the mining of adjacent working faces. The goaf-retained roadway technology can not only improve the resource recovery rate and reduce the amount of roadway excavation, but also solve the problem of gas accumulation in the upper corner. The goaf-retained roadway realizes pillar-free mining, which is a major technical reform in coal mine production.

[0003] However, in practical applications, the advantages of gob-side tunneling technology have not been brought into play. One of the main reasons is that the side tunnel support resistance does not meet the support strength requirements. Under the pressure of the roof, the side tunnel support body undergoes plastic deformation and damage, resulting in tunnel instability. The side tunnel support body of the gob-side tunneling must not only have the characteristics of high early strength, fast resistance increase rate and large support resistance, but also must have a certain amount of shrinkage. Traditional side tunneling support materials are difficult to meet the support requirements. The integral casting side tunneling filling technology can meet its requirements, so that the key technologies restricting the development of gob-side tunneling are better solved. The side tunneling filling wall is used to isolate the goaf and maintain the tunnel, and is the main support.

[0004] The use of backfill walls in deep tunnels can stabilize the tunnels along the goaf, ensure the formation of tunnels along the goaf and stabilize deep mining, but the backfill walls beside the tunnels may deform and slip in the face of lateral stress. In response to the needs of related projects, anti-slip devices are being used more intensively. The current devices have the following problems: First, the contact surface with the backfill wall is limited, and it cannot fully prevent the slip and deformation of the backfill wall; second, the device is difficult to use, and the combination with the top and bottom plates of the tunnel is complex, and it cannot fully cope with lateral stress and is inflexible to use. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides an anti-slip device for filling walls in gob-side lane retaining tunnels.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] An anti-slip device for filling walls in a gob-side tunnel, comprising a bottom plate and an anti-slip plate with one side of the hinged bottom plate pressed against the wall, a connecting block is installed on the bottom plate, and push rods are slidably connected inside the two sides of the connecting block, push plates are installed on the opposite sides of the two push rods, and an adjusting device for pushing the two push rods to move is installed in the connecting block;

[0008] A fixed oblique rod is hinged on the connecting block, and a fine-adjustment device for locking the fixed oblique rod is installed on the anti-slip plate.

[0009] Preferably, the adjusting device includes a push plate that can slide in the connecting block, a movable groove for cooperating with the push plate is provided in the connecting block, a threaded hole is provided on one side of the connecting block, a stepping bolt is installed in the threaded hole, a rotating ball is installed at one end of the stepping bolt, and a rotating hole for cooperating with the rotating ball is provided on the push plate.

[0010] Preferably, the connecting block is provided with a slide groove used in conjunction with the push rod and the slide groove is connected to the moving groove, the push plate is a triangular structure in cross section, and the push plate moves to push the push rod to slide in the slide groove.

[0011] Preferably, a locking nut is installed on the outer side of the stepping bolt.

[0012] Preferably, a fixing bolt capable of resisting the resisting rod is threadedly connected to the connecting block.

[0013] Preferably, the fine-tuning device comprises a fixed block fixedly connected to the anti-slip plate, a plurality of sets of adjustable locking devices are installed on the fixed block, and a mounting groove is provided on the fixed block.

[0014] Preferably, the locking device includes a locking rod slidably connected to the fixed block and the locking rod passes through the installation slot, the fixed block is provided with a limiting slot for cooperating with the locking rod, a pull rod is installed on one side of the locking rod and the pull rod extends to the outside of the fixed block.

[0015] Preferably, a drawing groove used in conjunction with the pull rod is provided on the fixing block and the drawing groove is connected to the limiting groove, and a return spring is installed on the outside of the pull rod and in the limiting groove.

[0016] Preferably, a plug hole for cooperating with the locking rod is provided on the fixed oblique rod.

[0017] After adopting the above structure, the utility model has the following advantages:

[0018] The utility model is provided with a fine-adjusting device for locking and fixing an oblique rod, the anti-skid plate is hingedly adjusted in position on one side of the bottom plate, and then the anti-skid plate and the bottom plate are connected and supported by the fixed oblique rod, so that the anti-skid plate can be firmly against the filling wall and can be fixed as a whole with the filling wall to prevent the filling wall from bulging, expanding and lateral deformation, so that it has greater stress resistance to prevent the filling wall from sliding, and together form a triangle, which can enhance the stability of the wall baffle, so that the lateral stress on the filling wall can be evenly distributed, and the stress is released to the top and bottom plates of the tunnel, thereby ensuring the stability of the tunnel left along the air.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the connection block of the utility model;

[0023] Figure 3 It is a schematic diagram of the installation of the regulating device of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the fine-tuning device of the utility model;

[0025] Figure 5 It is a cross-sectional view of the fine-tuning device of the utility model;

[0026] Figure 6 It is an installation schematic diagram of the utility model.

[0027] As shown in the figure: 1. Base plate; 2. Anti-skid plate; 3. Connecting block; 301. Slide groove; 4. Retaining rod; 5. Retaining plate; 6. Adjusting device; 601. Push plate; 602. Moving groove; 603. Stepping bolt; 604. Rotating ball; 605. Rotating hole; 7. Fixed diagonal rod; 8. Fine-tuning device; 801. Fixed block; 802. Locking device; 803. Mounting groove; 804. Locking rod; 805. Limiting groove; 806. Pull rod; 807. Pull groove; 808. Reset spring; 9. Fixing bolt; 10. Locking nut; 11. Socket. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The utility model is further described in detail below in conjunction with the full text.

[0031] Combined with Figure 1-Figure 6 A device for preventing the backfill wall from slipping in a tunnel along an empty lane comprises a bottom plate 1 and an anti-slip plate 2 which is hinged on one side of the bottom plate 1 and presses against the wall. A connecting block 3 is installed on the bottom plate 1. Abutment rods 4 are slidably connected to the inside of the two sides of the connecting block 3. Abutment plates 5 are installed on the opposite sides of the two abutment rods 4. An adjusting device 6 for pushing the two abutment rods 4 to move is installed in the connecting block 3. A fixed oblique rod 7 is hinged on the connecting block 3. A fine-tuning device 8 for locking the fixed oblique rod 7 is installed on the anti-slip plate 2. A backfill wall is stacked between the top plate and the bottom plate of a deep tunnel along an empty lane. The anti-slip plate 2 is hinged on one side of the bottom plate 1 with an adjusting position, and then the anti-slip plate 2 and the bottom plate 1 are connected and supported by the fixed oblique rod 7, so that the anti-slip plate 2 firmly presses against the backfill wall.

[0032] When the utility model is implemented, Figure 1-Figure 3 As shown, the adjusting device 6 includes a push plate 601 that can slide in the connecting block 3, a moving groove 602 for cooperating with the push plate 601 is provided in the connecting block 3, a threaded hole is provided on one side of the connecting block 3, a stepping bolt 603 is installed in the threaded hole, a rotating ball 604 is installed at one end of the stepping bolt 603, a rotating hole 605 for cooperating with the rotating ball 604 is provided on the push plate 601, a sliding groove 301 for cooperating with the push rod 4 is provided in the connecting block 3, and the sliding groove 301 is connected to the moving groove 602, and the push plate 601 has a triangular structure in cross section. The push plate 601 moves to push the push rod 4 to slide in the sliding groove 301, and the push plate 601 moves in the moving groove 602, and the two push rods 4 are pushed to slide in the sliding groove 301 through the triangular structure, so that the push plate 5 is pressed against the inner side of the lane.

[0033] Specifically, a locking nut 10 is installed on the outer side of the stepping bolt 603, and the stepping bolt 603 rotates and moves in the threaded hole, driving the rotating ball 604 to rotate in the rotating hole 605, driving the push plate 601 to move, and at the same time playing a limiting role, and the locking nut 10 is rotated on the outer side of the stepping bolt 603 to press against the connecting block 3 to complete the secondary locking.

[0034] Specifically, a fixing bolt 9 that can resist the support rod 4 is threadedly connected to the connecting block 3 . The fixing bolt 9 can be rotated and moved on the connecting block 3 to resist the support rod 4 , thereby achieving fixed limiting of the support rod 4 .

[0035] When the utility model is implemented, Figure 1 , Figure 4 and Figure 5 As shown, the fine-tuning device 8 includes a fixed block 801 fixedly connected to the anti-slip plate 2, a plurality of adjustable locking devices 802 are installed on the fixed block 801, a mounting groove 803 is provided on the fixed block 801, the locking device 802 includes a locking rod 804 slidably connected to the fixed block 801 and the locking rod 804 passes through the mounting groove 803, a limiting groove 805 used in conjunction with the locking rod 804 is provided on the fixed block 801, a pull rod 806 is installed on one side of the locking rod 804 and the pull rod 806 extends to the outside of the fixed block 801, a socket 11 used in conjunction with the locking rod 804 is provided on the fixed oblique rod 7, a pull groove 807 used in conjunction with the pull rod 806 is provided on the fixed block 801, and the pull groove 807 is connected to the limiting groove 805, and a reset spring 808 is installed on the outside of the pull rod 806 and in the limiting groove 805. One end of the fixed oblique rod 7 is hinged on the connecting block 3, and the other end is locked by the locking device 802. The pull rod 806 is pulled to move in the pull groove 807, driving the locking rod 804 to move, and the reset spring 808 is compressed. The outer end hole 11 of the fixed oblique rod 7 enters the installation groove 803, and the pull rod 806 is released. The reset spring 808 stretches and pushes the locking rod 804 through the hole 11 to reset, thereby realizing the locking of the fixed oblique rod 7.

[0036] Specifically, the locking rod 804 can be moved from the limiting groove 805 on one side of the fixing block 801 through the installation groove 803 and removed into the limiting groove 805 of the fixing block 801 .

[0037] Embodiment 1:

[0038] like Figure 6 As shown,

[0039] The anti-slip plate 2 is hinged and adjusted in position on one side of the base plate 1, and the stepping bolt 603 rotates and moves in the threaded hole, driving the rotating ball 604 to rotate in the rotating hole 605, driving the push plate 601 to move, pushing the push rod 4 to slide in the slide groove 301, and the push plate 601 moves in the moving groove 602. The two push rods 4 are pushed to slide in the slide groove 301 through the triangular structure, so that the push plate 5 is pressed against the inner side of the lane, and the locking nut 10 is rotated on the outside of the stepping bolt 603 to press against the connecting block 3 to complete the secondary locking. The fixing bolt 9 rotates and moves on the connecting block 3 to press against the push rod 4, and the push rod 4 is fixed and limited, and then the anti-slip plate 2 and the base plate 1 are connected and supported by the fixed oblique rod 7, so that the anti-slip plate 2 is firmly pressed against the filling wall.

[0040] Embodiment 2:

[0041] When the filling wall is tilted, the position of the anti-slip plate 2 on the bottom plate 1 can be adjusted by the fine-tuning device 8, the stepping bolt 603 rotates and moves in the threaded hole, driving the rotating ball 604 to rotate in the rotating hole 605, driving the push plate 601 to move, pushing the push rod 4 to slide in the slide groove 301, and the push plate 601 moves in the moving groove 602. The two push rods 4 are pushed to slide in the slide groove 301 through the triangular structure, so that the push plate 5 is pressed against the inner side of the lane, and then the anti-slip plate 2 is connected and supported by the fixed diagonal rod 7. The slide plate 2 and the base plate 1 make the anti-slide plate 2 firmly against the filling wall, pull the pull rod 806 to move in the pull groove 807, drive the locking rod 804 to move, compress the reset spring 808, and the outer end hole 11 of the fixed oblique rod 7 enters the installation groove 803, release the pull rod 806, and the reset spring 808 extends, pushing the locking rod 804 through the hole 11 to reset, thereby locking the fixed oblique rod 7. Select a suitable locking device 802 to lock the fixed oblique rod 7, and filling walls of different angles can be used.

[0042] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. An anti-slip device for filling walls in gob-side tunnels, comprising a bottom plate (1) and an anti-slip plate (2) hinged to one side of the bottom plate (1) and against the wall, characterized in that: A connecting block (3) is installed on the bottom plate (1), and push rods (4) are slidably connected inside the two sides of the connecting block (3), push plates (5) are installed on the opposite back sides of the two push rods (4), and an adjusting device (6) for pushing the two push rods (4) to move is installed in the connecting block (3); A fixed oblique rod (7) is hinged on the connecting block (3), and a fine-adjustment device (8) for locking the fixed oblique rod (7) is installed on the anti-slip plate (2).

2. The anti-slip device for filling walls in gob-side tunnel retaining tunnels according to claim 1 is characterized in that: The adjusting device (6) comprises a push plate (601) which can slide in the connecting block (3), a movable groove (602) for cooperating with the push plate (601) is provided in the connecting block (3), a threaded hole is provided on one side of the connecting block (3), a stepping bolt (603) is installed in the threaded hole, a rotating ball (604) is installed at one end of the stepping bolt (603), and a rotating hole (605) for cooperating with the rotating ball (604) is provided on the push plate (601).

3. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 2 is characterized in that: The connecting block (3) is provided with a slide groove (301) used in conjunction with the push rod (4), and the slide groove (301) is connected to the movable groove (602). The push plate (601) has a triangular cross-section structure, and the push plate (601) moves to push the push rod (4) to slide in the slide groove (301).

4. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 2 is characterized in that: A locking nut (10) is installed on the outer side of the stepping bolt (603).

5. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 1 is characterized in that: The connection block (3) is threadedly connected with a fixing bolt (9) capable of resisting the resisting rod (4).

6. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 1, characterized in that: The fine-tuning device (8) comprises a fixed block (801) fixedly connected to the anti-slip plate (2), a plurality of sets of adjustable locking devices (802) are installed on the fixed block (801), and a mounting groove (803) is provided on the fixed block (801).

7. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 6 is characterized in that: The locking device (802) includes a locking rod (804) slidably connected to a fixed block (801), and the locking rod (804) passes through a mounting groove (803); a limiting groove (805) for cooperating with the locking rod (804) is provided on the fixed block (801); a pull rod (806) is installed on one side of the locking rod (804), and the pull rod (806) extends to the outside of the fixed block (801).

8. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 7, characterized in that: The fixing block (801) is provided with a pull groove (807) used in conjunction with the pull rod (806), and the pull groove (807) is connected to the limit groove (805). A return spring (808) is installed outside the pull rod (806) and inside the limit groove (805).

9. The anti-slip device for filling walls in gob-side tunnel retaining according to claim 7, characterized in that: The fixed oblique rod (7) is provided with a plug hole (11) for use with the locking rod (804).

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