Hole protector for mine blast hole

Abstract

The utility model discloses a hole protection device for a mine blast hole, which comprises a hole protection plate, an edge plate and a connector, the hole protection plate is a rectangular plate and can be bent, and a lower buckle is arranged at the upper end of one surface of the hole protection plate; the edge plate is an annular plate, an upper buckle is arranged on the inner edge of the edge plate, and the connector is clamped into the upper buckle and the lower buckle to vertically connect the hole protection plate with the edge plate; the number of the hole protecting plates is one or two. The edge plate is an annular plate or an annular plate which is split in half. The hole protection plate and the edge plate are separately arranged, so that transportation is convenient, the hole protection plate can be fixed through the edge plate, rock soil around a blast hole can be protected, and rock chippings are prevented from falling into the blast hole to affect later work.

Description

Technical Field

[0001] The utility model relates to the technical field of hole protectors, in particular to a hole protector for mine blastholes. Background Art

[0002] The drilling depth of step mining in open-pit mines is about 13 meters, the number of holes drilled at one time is large, there is slag on the construction site, and most of the completed blast holes are at risk of collapse or slag falling. After the open-pit mine carries out the drilling operation, there is loose slag at the drilling position and soft rock at the hole mouth after the hole is formed. Failure to protect the hole will cause the rock at the hole mouth to fall into the hole and cause blockage.

[0003] Most perforating equipment will add a metal tube-shaped hole protector during construction to ensure that the drilled hole will not collapse during construction. The metal tube hole protector will be removed after the blasthole construction is completed. After the blasthole is formed, a sack is used to fill the hole with soil to block the hole. The main purpose is to prevent the blasthole from collapsing and blocking due to the subsequent movement of equipment at the construction site. However, after the perforation is completed, the acceptance personnel will focus on the blasthole acceptance. In the process of pulling out the sack, a large amount of rocks and debris will fall into it.

[0004] The prior art publication number is CN203704813U, which is a prestressed blast hole protector, which specifically discloses a cylindrical thin shell structure with an opening on one axial side, a detonator and a detonating cord outlet and a lifting bracelet are provided on the upper part, and the lower part is designed to be retracted. Although the structure can achieve the hole protection function, the upper end structure needs to protrude from the upper end of the blast hole mouth, and there is no object that is subjected to force traction. When making the hole protector, it needs to be made according to the diameter of the blast hole. If the manufacturing diameter is slightly smaller than the diameter of the blast hole, the hole protector will not play a hole protection role, and the cylindrical hole protector is not easy to transport. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a hole protector for mine blastholes.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hole protector for mine blastholes comprises a hole protector plate, an edge plate and a connector. The hole protector plate is a rectangular plate that can be bent, and a lower buckle is provided at the upper end of one side of the hole protector plate; the edge plate is an annular plate, and an upper buckle is provided at the inner edge of the edge plate. The connector is snapped into the upper buckle and the lower buckle to vertically connect the hole protector plate and the edge plate.

[0008] One or two hole-protecting plates are provided.

[0009] The edge plate is an annular plate or an annular plate divided into two halves.

[0010] The connector includes a horizontal fixing strip, a vertical connecting rod and a triangular rebound card joint. The connecting rod is vertically fixed in the middle of the bottom of the fixing strip. A triangular rebound card joint is arranged at the bottom end of the connecting rod. The arrow of the triangular rebound card joint points downward. The triangular rebound card joint is respectively inserted into the upper buckle and the lower buckle in turn, blocked at the top of the upper buckle by the fixing strip, and clamped at the bottom of the lower buckle by the triangular rebound card joint.

[0011] The hole guard plate, edge plate and connector are all made of plastic. Metal materials will affect the subsequent blasting work. Choosing plastic materials has low cost and does not require subsequent disassembly, which will not affect the blasting work.

[0012] The beneficial effects of the utility model are as follows: the hole guard plate and the edge plate are arranged separately for easy transportation; the hole guard plate can be fixed by the edge plate arrangement, and the rock and soil around the blast hole can be protected to prevent rock debris from falling into the blast hole and affecting subsequent work. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an assembly structure diagram of the utility model;

[0014] Figure 2 This is a structural diagram of the hole protection plate of the utility model in an assembled state;

[0015] Figure 3 This is the original front view of the hole guard plate of the utility model;

[0016] Figure 4 This is a structural diagram of the edge plate of the utility model;

[0017] Figure 5 This is a structural diagram of the connector of the utility model;

[0018] In the figure: 1, hole guard plate; 11, left guard plate; 12, right guard plate; 2, edge plate; 21, left edge plate; 22, right edge plate; 3, lower buckle; 4, upper buckle; 5, connector; 51, fixing strip; 52, connecting rod; 53, triangular rebound clamp joint. DETAILED DESCRIPTION

[0019] Example 1

[0020] The utility model provides a hole protector for a mine blasthole, which comprises a hole protector plate 1, an edge plate 2 and a connector 5. The hole protector plate 1 is a rectangular plate that can be bent, and a lower buckle 3 is arranged at the upper end of one side of the hole protector plate 1; the edge plate 2 is an annular plate, and an upper buckle 4 is arranged at the inner edge of the edge plate 2. The connector 5 is clamped into the upper buckle 4 and the lower buckle 3 to vertically connect the hole protector plate 1 and the edge plate 2;

[0021] The hole guard plate 1 is provided with 1;

[0022] The edge plate 2 is an annular plate;

[0023] The connector 5 includes a horizontal fixing bar 51, a vertical connecting rod 52 and a triangular rebound clamp joint 53. The connecting rod 52 is vertically fixed in the middle of the bottom of the fixing bar 51. The bottom end of the connecting rod 52 is provided with a triangular rebound clamp joint 53, and the arrow of the triangular rebound clamp joint 53 faces downward.

[0024] The hole guard plate 1, the edge plate 2 and the connector 5 are all made of plastic;

[0025] Specifically, the perforation guard plate 1 is bent into a cylindrical shape, the top of the perforation guard plate 1 is connected to the edge plate 2 through the connector 5, the triangular rebound clamp joint 53 is respectively inserted into the upper buckle 4 and the lower buckle 3 in turn, blocked at the top of the upper buckle 4 by the fixing strip 51, and clamped at the bottom of the lower buckle 3 by the triangular rebound clamp joint 53; the perforation guard plate 1 is placed in the blast hole, and the edge plate 2 is fixed around the blast hole.

[0026] Example 2

[0027] like Figure 1-5 As shown, the utility model provides a hole protector for a mine blasthole, which has the following structure: comprising a hole protector plate 1, an edge plate 2 and a connector 5, wherein the hole protector plate 1 is a rectangular plate that can be bent, and a lower buckle 3 is arranged at the upper end of one side of the hole protector plate 1; the edge plate 2 is an annular plate, and an upper buckle 4 is arranged at the inner edge of the edge plate 2, and the connector 5 is clamped into the upper buckle 4 and the lower buckle 3 to vertically connect the hole protector plate 1 and the edge plate 2;

[0028] The hole guard plates 1 are provided with two, namely a left guard plate 11 and a right guard plate 12;

[0029] The edge plate 2 is a ring-shaped plate divided into two halves, including a left edge plate 212 and a right edge plate 222;

[0030] The connector 5 includes a horizontal fixing bar 51, a vertical connecting rod 52 and a triangular rebound clamp joint 53. The connecting rod 52 is vertically fixed in the middle of the bottom of the fixing bar 51. The bottom end of the connecting rod 52 is provided with a triangular rebound clamp joint 53, and the arrow of the triangular rebound clamp joint 53 points downward.

[0031] The hole guard plate 1, the edge plate 2 and the connector 5 are all made of plastic.

[0032] Specifically, the left guard plate 11 and the right guard plate 12 are bent into semi-arc shapes, and the tops of the left guard plate 11 and the right guard plate 12 are connected to the left edge plate 212 and the right edge plate 222 through the connector 5 respectively. The triangular rebound clamp joint 53 is respectively inserted into the upper buckle 4 and the lower buckle 3 in turn, blocked at the top of the upper buckle 4 by the fixing bar 51, and clamped at the bottom of the lower buckle 3 by the triangular rebound clamp joint 53; the left guard plate 11 and the right guard plate 12 are put into the blast hole in turn, and the edge plate 2 is fixed around the blast hole.

Claims

1. A mine blasthole protector, characterized in that: It includes a hole guard plate, an edge plate and a connector. The hole guard plate is a rectangular plate that can be bent, and a lower buckle is arranged at the upper end of one side of the hole guard plate; the edge plate is an annular plate, and an upper buckle is arranged at the inner edge of the edge plate. The connector is snapped into the upper buckle and the lower buckle to vertically connect the hole guard plate and the edge plate.

2. A mine blasthole protector according to claim 1, characterized in that: One or two hole-protecting plates are provided.

3. The mine blasthole protector according to claim 1, characterized in that: The edge plate is an annular plate or an annular plate divided into two halves.

4. The mine blasthole protector according to claim 1, characterized in that: The connector includes a horizontal fixing strip, a vertical connecting rod and a triangular rebound card joint. The connecting rod is vertically fixed in the middle of the bottom of the fixing strip. The bottom end of the connecting rod is provided with a triangular rebound card joint, and the arrow of the triangular rebound card joint faces downward.

5. The mine blasthole protector according to claim 1, characterized in that: The hole protection plate, edge plate and connector are all made of plastic.

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