Side slope reinforcing structure for open pit coal mine end slope steep slope mining

Abstract

The utility model discloses a side slope reinforcing structure for open pit coal mine end slope steep slope exploitation. The side slope reinforcing structure comprises a slope protection plate and a connecting assembly. Symmetrically-distributed connecting seats are arranged in the middle of the upper surface of the slope protection plate, a pin shaft is installed between the two connecting seats, the middle of the outer arc face of the pin shaft is movably sleeved with a connecting sleeve, an anchor rod is arranged on the lower surface of the connecting sleeve, a spiral piece is arranged in the middle of the outer arc face of the anchor rod, and key-shaped holes are formed in the upper end and the lower end of the right side of the upper surface of the slope protection plate and the lower end of the left side of the upper surface of the slope protection plate; the connecting assembly is used for being connected with the key-shaped hole and comprises a supporting shaft, an annular plate, a connecting shaft and a small baffle, according to the slope reinforcing structure for open pit coal mine end slope steep slope exploitation, the four corners of the slope protection plates can be detachably connected with eight slope protection plates in a circle, the slope protection plates are convenient to lay, the connecting strength is high, and the slope protection plates are not prone to falling off. The device has a good reinforcing effect on the slope of the steep end slope of the open pit coal mine, and can be disassembled and reused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mining, in particular to a slope reinforcing structure for open coal mine end slope and steep slope mining. BACKGROUND

[0002] Open coal mine refers to the coal layer deposited on the surface or shallow layer due to geographical changes, when mining, using dredger, excavator, truck and other equipment to remove topsoil, after topsoil removal, the ore bed will be exposed, at this time, the ore block is drilled or broken, and the truck is used to transport the ore sand to the coal preparation plant for further processing, when the ore mining is completed, the same step is repeated in the next room, in the process of removing topsoil, the slope reinforcing structure is used to reinforce the open coal mine end slope and steep slope, to avoid landslide construction, the existing slope reinforcing structure is generally formed by pouring concrete, which has good protection effect, but after pouring, it forms an integral structure and cannot be removed and reused, which may easily cause resource waste. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a slope reinforcing structure for open coal mine end slope and steep slope mining, the slope protection plate has good anchoring effect with the slope soil through the anchor rod with spiral blades, and the four corners of the slope protection plate can be detachably connected with eight slope protection plates, the slope protection plate is convenient to lay and has high connection strength, has good reinforcing effect on the slope of the open coal mine end slope and steep slope, and can be repeatedly used after disassembly, which can effectively solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a slope reinforcing structure for open coal mine end slope and steep slope mining, which comprises a slope protection plate and a connecting assembly.

[0005] The upper surface of the slope protection plate is provided with symmetrically distributed connecting seats in the middle, a pin shaft is installed between the two connecting seats, a connecting sleeve is movably sleeved on the outer arc surface of the pin shaft in the middle, an anchor rod is arranged on the lower surface of the connecting sleeve, a spiral blade is arranged on the outer arc surface of the anchor rod in the middle, and keyhole-shaped holes are formed in the upper and lower ends on the right side and the lower end on the left side of the upper surface of the slope protection plate.

[0006] The connecting assembly is used for connecting the keyhole-shaped holes, the connecting unit of the slope protection plate can be quickly connected with three slope protection plates at the upper left corner at the same time, the four corners of the slope protection plate can be detachably connected with eight slope protection plates, the slope protection plate is convenient to lay and has high connection strength, has good reinforcing effect on the slope of the open coal mine end slope and steep slope, and can be repeatedly used after disassembly.

[0007] Furthermore, the connecting assembly includes a support shaft, an annular plate, a connecting shaft, and a small baffle. The support shaft is located at the upper left end of the upper surface of the slope protection plate. The annular plate is rotatably connected to the outer arc surface of the support shaft. Three connecting shafts are provided on the lower surface of the annular plate. Each connecting shaft has a small baffle at its lower end. The connecting shafts and small baffles are configured to mate with keyholes for connection.

[0008] Furthermore, the connecting assembly also includes a round shaft seat, which is disposed on the upper surface of the annular plate to facilitate the insertion of external tools to control the rotation of the annular plate.

[0009] Furthermore, a large baffle is provided at the upper end of the support shaft, which is located above the annular plate to facilitate the positioning of the annular plate.

[0010] Furthermore, a positioning hole is provided at the upper left end of the upper surface of the slope protection plate, and a positioning screw is threaded into the threaded hole on the upper surface of the annular plate. The lower end of the positioning screw extends into the interior of the positioning hole to facilitate limiting the rotation of the annular plate.

[0011] Furthermore, the upper surface of the connecting sleeve is provided with a hexagonal shaft, which facilitates the control of the rotation of the anchor rod.

[0012] Furthermore, a retaining ring is installed at the left end of the pin to facilitate the fixing of the pin.

[0013] Furthermore, positioning shafts are provided at the four corners of the lower surface of the slope protection board to facilitate the initial positioning of the slope protection board.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the slope reinforcement structure adopted in this open-pit coal mine with steep end slopes has the following advantages:

[0015] The anchor bolt has a spiral plate on the outside, which has a high anchoring strength to the slope. At the same time, the connecting unit of the slope protection plate can be quickly connected to the three slope protection plates in the upper left corner at the same time. Then, the four corners of the slope protection plate can be detachably connected to the eight slope protection plates around the perimeter. The slope protection plate is easy to lay and has high connection strength. It has a good reinforcement effect on the steep slopes of open coal mines and can be disassembled and reused. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0017] Fig. 2 This is a cross-sectional structural diagram of the slope protection board of this utility model;

[0018] Fig. 3 This is an enlarged structural diagram of point A in this utility model.

[0019] In the figure: 1 slope protection plate, 2 connecting seat, 3 pin shaft, 4 connecting sleeve, 5 anchor rod, 6 snap spring, 7 key-shaped hole, 8 positioning shaft, 9 connecting assembly, 91 supporting shaft, 92 annular plate, 93 connecting shaft, 94 small baffle, 95 round shaft seat, 10 helical blade, 11 large baffle, 12 positioning screw, 13 positioning hole, 14 hexagonal shaft. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to 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. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The embodiment provides a technical scheme: a slope reinforcement structure for steep slope mining of open-pit coal mine, which comprises a slope protection plate 1 and a connecting assembly 9.

[0022] The slope protection plate 1: the middle part of the upper surface is provided with symmetrically distributed connecting seats 2, the slope protection plate 1 is laid on the slope, a pin shaft 3 is installed between the two connecting seats 2, a connecting sleeve 4 is movably sleeved on the outer arc surface of the middle part of the pin shaft 3, an anchor rod 5 is arranged on the lower surface of the connecting sleeve 4, a helical blade 10 is arranged on the outer arc surface of the middle part of the anchor rod 5, the anchor rod 5 and the helical blade 10 are inserted into the soil inside the slope, the helical blade 10 is screwed into the soil, thereby the anchor strength of the anchor rod 5 and the soil can be increased, key-shaped holes 7 are arranged on the upper surface of the right side and the lower end of the left side of the slope protection plate 1, a hexagonal shaft 14 is arranged on the upper surface of the connecting sleeve 4, an internal hexagonal sleeve is used to rotate the hexagonal shaft 14, the hexagonal shaft 14 drives the anchor rod 5 and the helical blade 10 to rotate through the connecting sleeve 4, a snap spring 6 is installed on the left end of the pin shaft 3, after the anchor rod 5 is screwed into the connecting sleeve 4 and corresponds to the connecting seat 2, the pin shaft 3 is inserted into the connecting sleeve 4 and the connecting seat 2, then the snap spring 6 is clamped into the snap spring groove at the end of the pin shaft 3 by using a snap spring clamp, thereby the pin shaft 3 is prevented from loosening, positioning shafts 8 are arranged at the four corners of the lower surface of the slope protection plate 1, the positioning shafts 8 are inserted into the soil, and the positioning shafts 8 preliminarily position the slope protection plate 1.

[0023] The connecting assembly 9 is used for connecting the key-shaped hole 7. The connecting assembly 9 comprises a supporting shaft 91, an annular plate 92, connecting shafts 93 and small stop plates 94. The supporting shaft 91 is arranged at the upper left end of the upper surface of the revetment plate 1. The outer arc surface of the supporting shaft 91 is rotationally connected with the annular plate 92. Three connecting shafts 93 are arranged on the lower surface of the annular plate 92. The lower ends of the connecting shafts 93 are provided with small stop plates 94. The connecting shafts 93 and the small stop plates 94 are arranged in cooperation with the key-shaped hole 7. The three connecting shafts 93 and the small stop plates 94 at the upper left corner of the revetment plate 1 are inserted into the corresponding key-shaped holes 7 of the three revetment plates 1 at the upper left corner. The key-shaped hole 7 is composed of a large circular hole and a small long hole. The diameter of the large circular hole is larger than the diameter of the small stop plate 94. The diameter of the small stop plate 94 is larger than the width of the small long hole. The connecting shafts 93 and the small stop plates 94 are inserted from the large circular hole end of the key-shaped hole 7. The annular plate 92 drives the connecting shafts 93 and the small stop plates 94 to rotate synchronously. The connecting shafts 93 and the small stop plates 94 move to the small head end of the key-shaped hole 7. Then, the small stop plates 94 block the vertical movement of the connecting shafts 93. The connecting assembly 9 further comprises a circular shaft seat 95. The circular shaft seat 95 is arranged on the upper surface of the annular plate 92. A tool is inserted into the circular shaft seat 95. The tool drives the circular shaft seat 95 and the annular plate 92 to rotate around the supporting shaft 91. The upper end of the supporting shaft 91 is provided with a large stop plate 11. The large stop plate 11 is located above the annular plate 92. The large stop plate 11 limits the falling of the annular plate 92. A positioning hole 13 is arranged at the upper left end of the upper surface of the revetment plate 1. A positioning screw 12 is threadedly connected in the threaded hole of the upper surface of the annular plate 92. The lower end of the positioning screw 12 extends into the positioning hole 13. The positioning screw 12 corresponds to the positioning hole 13. Then, the positioning screw 12 is rotated. The lower end of the positioning screw 12 extends into the positioning hole 13. The positioning screw 12 limits the rotation of the annular plate 92. The annular plate 92 positions the connecting shafts 93 and the small stop plates 94. Then, the other three revetment plates 1 can be connected.

[0024] The working principle of the slope reinforcing structure for open coal mine side slope and steep slope exploitation is as follows: the slope protection plate 1 is laid on the slope, the positioning shaft 8 is inserted into the soil, in the laying process, the three connecting shafts 93 and the small baffle 94 at the upper left corner of the slope protection plate 1 are inserted into the corresponding keyhole type holes 7 of the three slope protection plates 1 at the upper left, the keyhole type hole 7 is composed of a large circular hole and a small long hole, the diameter of the large circular hole is larger than that of the small baffle 94, the diameter of the small baffle 94 is larger than the width of the small long hole, the connecting shaft 93 and the small baffle 94 are inserted from the large circular hole end of the keyhole type hole 7, then a tool is inserted into the inside of the circular shaft seat 95, the tool drives the circular shaft seat 95 and the annular plate 92 to rotate around the supporting shaft 91, the annular plate 92 drives the connecting shaft 93 and the small baffle 94 to rotate synchronously, the connecting shaft 93 and the small baffle 94 move to the small end of the keyhole type hole 7, and then the small baffle 94 blocks the vertical movement of the connecting shaft 93, meanwhile, the positioning screw 12 corresponds to the positioning hole 13, then the positioning screw 12 is rotated, the lower end of the positioning screw 12 extends into the inside of the positioning hole 13, the positioning screw 12 limits the rotation of the annular plate 92, the annular plate 92 positions the connecting shaft 93 and the small baffle 94, and then the other three slope protection plates 1 can be connected, then the anchor rod 5 and the spiral piece 10 are inserted into the soil inside the slope, the internal hexagonal sleeve is used to rotate the hexagonal shaft 14, the hexagonal shaft 14 drives the anchor rod 5 and the spiral piece 10 to rotate through the connecting sleeve 4, the spiral piece 10 is screwed into the soil, and then the anchor rod strength of the anchor rod 5 and the soil can be increased, after the anchor rod 5 is screwed into the connecting sleeve 4 and corresponds to the connecting seat 2, the pin shaft 3 is inserted into the connecting sleeve 4 and the connecting seat 2, then the clamp spring 6 is clamped into the clamp spring groove at the end of the pin shaft 3 by using the clamp spring pliers, and then the pin shaft 3 is prevented from loosening, the slope can be reinforced and protected through the laying and installation of the slope protection plate 1, and landslide is avoided.

[0025] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification and drawing contents, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A side slope reinforcing structure for steep slope mining of a surface coal mine, characterized by: Includes slope protection panels (1) and connecting components (9); Slope protection board (1): A symmetrically distributed connecting seat (2) is provided in the middle of its upper surface. A pin (3) is installed between the two connecting seats (2). A connecting sleeve (4) is movably sleeved in the middle of the outer arc surface of the pin (3). An anchor rod (5) is provided on the lower surface of the connecting sleeve (4). A spiral plate (10) is provided in the middle of the outer arc surface of the anchor rod (5). Key-shaped holes (7) are opened at the upper and lower ends of the right side and the lower end of the left side of the upper surface of the slope protection board (1). Connection component (9): for connecting the keyhole (7).

2. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 1, characterized in that: The connecting assembly (9) includes a support shaft (91), an annular plate (92), a connecting shaft (93), and a small baffle (94). The support shaft (91) is located on the upper left end of the upper surface of the slope protection plate (1). The annular plate (92) is rotatably connected to the outer arc surface of the support shaft (91). Three connecting shafts (93) are provided on the lower surface of the annular plate (92). The lower end of each connecting shaft (93) is provided with a small baffle (94). The connecting shaft (93) and the small baffle (94) are configured to cooperate with the keyhole (7).

3. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 2, characterized in that: The connecting assembly (9) further includes a round shaft seat (95) disposed on the upper surface of the annular plate (92).

4. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 2, characterized in that: The upper end of the support shaft (91) is provided with a large baffle (11), which is located above the annular plate (92).

5. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 2, characterized in that: The upper left end of the slope protection plate (1) is provided with a positioning hole (13), and the threaded hole on the upper surface of the annular plate (92) is threaded with a positioning screw (12), the lower end of the positioning screw (12) extends into the interior of the positioning hole (13).

6. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 1, characterized in that: The upper surface of the connecting sleeve (4) is provided with a hexagonal shaft (14).

7. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 1, characterized in that: A retaining ring (6) is installed on the left end of the pin (3).

8. The slope reinforcement structure for steep slope mining of open-pit coal mines according to claim 1, characterized in that: The slope protection board (1) has positioning shafts (8) at the four corners of its lower surface.

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