Blasting tube fixing device for directional blasting of mine

Abstract

The utility model relates to a blast tube fixing device for directional blasting of a mine, which comprises an upper tube hoop, a lower tube hoop, a bolt and a nut, a blast tube accommodating area is arranged between the upper tube hoop and the lower tube hoop, the upper tube hoop and the lower tube hoop are provided with assembly holes, the bolt is connected with the upper tube hoop and the lower tube hoop through the assembly holes, and the nut is connected with the upper tube hoop and the lower tube hoop. The nut is in threaded connection with the outer side of the bolt, the lower pipe hoop is fixed at the tail part of the reference sleeve, and the upper pipe hoop is movably connected with the reference sleeve; the rapid clamping structure comprises a sleeve, a plurality of shield pieces with the front portions narrow and the rear portions wide are arranged on the outer side of the sleeve, the shield pieces can rapidly stretch into the blast hole, and elastic supporting components are arranged on the sides, close to the sleeve, of the shield pieces. According to the blast tube fixing device for directional blasting of the mine, when the distance between the highest point of the front side of the shield piece and the axis of the sleeve is smaller than the radius of the blast hole, the front section of the shield piece is directly pushed into the blast hole, clamping work can be completed, the shield piece does not need to be pressed towards the sleeve before operation, and operation convenience is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of mine blasting tube fixing tools, in particular to a blasting tube fixing device for mine directional blasting. Background Art

[0002] In mining projects (such as mining), it is often necessary to carry out directional blasting in some areas of the mine. Before blasting, blasting holes are usually drilled in the corresponding blasting areas of the mine. The blasting holes are used to load blasting tubes. After the blasting tubes are loaded, fixed-point directional blasting is carried out.

[0003] In order to ensure that the blasting tube is inserted into the blasting hole without deviation, a blasting tube fixing device is required. In the prior art, some blasting tube fixers are directly clamped into the blasting hole for fixing. For example, the Chinese utility model patent for a blasting tube fixing device for mining with authorization announcement number CN211234162U arranges an elastic member between the inner support member and the fixing ring, and designs an adjustable spacing between the outer support member and the inner support member, so that the outer support member can adapt to blasting holes of different sizes.

[0004] In the above-mentioned prior art, each time the distance between the outer support and the inner support is adjusted, in order to allow the outer support to fully elastically abut against the blasting hole, the distance between the outer support and the fixing ring needs to be larger than the diameter of the blasting hole. In this way, each time the mining blasting tube fixing device is clamped into the blasting hole, the outer support needs to be pressed to make the distance between the outer support and the fixing ring smaller than the diameter of the blasting hole, which causes inconvenience in use and cannot be quickly clamped into the blasting hole. For this reason, a blasting tube fixing device for directional blasting in mines is proposed. Utility Model Content

[0005] Based on the above description, the utility model provides a blasting tube fixing device for directional blasting in mines, in which the shield is designed to be narrow in front and wide in the back. When the radius of the front side of the shield is smaller than the radius of the blasting hole, the shield can be quickly extended into the blasting hole. In addition, the design of the elastic support component can allow the shield to shrink to adapt to blasting holes of different diameters within a certain range.

[0006] The utility model solves the above technical problems with the following technical solutions: a blasting pipe fixing device for directional blasting in mines, comprising an upper pipe hoop, a lower pipe hoop, a bolt and a nut, the upper pipe hoop and the lower pipe hoop are provided with a blasting pipe accommodation area, the upper pipe hoop and the lower pipe hoop are provided with assembly holes, the bolts are connected to the upper pipe hoop and the lower pipe hoop through the assembly holes, the nuts are threadedly connected to the outer side of the bolts, and further comprising:

[0007] A reference sleeve, wherein the lower pipe hoop is fixed to the tail of the reference sleeve, and the upper pipe hoop is movably connected to the reference sleeve;

[0008] The quick clamping structure includes a sleeve, and a plurality of shields which are narrow in front and wide in the back are arranged on the outside of the sleeve so that the shields can be quickly extended into the blasting hole. An elastic supporting component is arranged on the side of the shield close to the sleeve so that the shields can be close to or away from the sleeve.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, there is a spacing interval between the sleeve and the reference sleeve, and a movable hole is opened on the outside of the sleeve. The elastic supporting component includes a sleeve rod, and the side of the sleeve rod away from the shield plate passes through the movable hole and is fixed with a baffle. A spring is arranged on the outside of the sleeve rod and is located between the baffle and the sleeve.

[0011] Furthermore, a spacer is fixed between the sleeve and the reference sleeve so that there is the spacing interval between the sleeve and the reference sleeve.

[0012] Furthermore, the shield, sleeve and reference sleeve are coaxially arranged.

[0013] Furthermore, the number of the shield plates is four groups, and the four groups of shield plates are distributed in a circular array.

[0014] Furthermore, it also includes a reinforcement component, which can be rotatably connected to the outer side of the bolt so that the reinforcement component can be adjusted in position.

[0015] Furthermore, the reinforcement component includes an assembly bar and a fixing anchor rod, wherein the assembly bar can be rotatably connected to the outer side of the bolt, and the fixing anchor rod can be rotatably connected to a side of the assembly bar away from the bolt.

[0016] Furthermore, the assembly strip has a notch on one side away from the bolt, an axial column is arranged at the notch, an extension plate is rotatably connected to the outer side of the axial column, the extension plate has a positioning hole, and the fixing anchor rod is arranged in the positioning hole.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0018] 1. The blasting tube fixing device for directional blasting in mines, when the distance between the highest point of the front side of the shield and the axis center line of the sleeve is less than the radius of the blasting hole, the front section of the shield is directly pushed into the blasting hole, and the clamping work can be completed, and there is no need to press the shield toward the sleeve before operation, which provides convenient operation.

[0019] 2. The design of the elastic support component of the blasting tube fixing device for directional blasting in mines can provide activity space for the shield, so that the blasting tube fixing device for directional blasting in mines can adapt to blasting holes of different diameters within a certain range.

[0020] 3. The blasting tube fixing device used for directional blasting in the mine is designed with fixed anchor rods that can be adjusted in multiple directions to cope with reinforcement scenarios in different scenes under the complex environment of the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a blasting tube fixing device for directional blasting in mines provided by an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A structural diagram from another perspective;

[0023] Figure 3 for Figure 1 A schematic diagram of the front view structure of

[0024] Figure 4 for Figure 1 Schematic diagram of the half-section structure;

[0025] Figure 5 for Figure 4 A partial enlarged schematic diagram of area A in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Upper pipe clamp; 2. Lower pipe clamp; 3. Bolt; 4. Nut; 5. Reference sleeve; 6. Quick clamping structure; 61. Sleeve; 62. Shield; 63. Elastic supporting component; 631. Sleeve rod; 632. Baffle; 633. Spring; 64. Spacer; 7. Reinforcement component; 71. Assembly strip; 72. Fixed anchor rod; 73. Extension plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] like Figure 1-3 As shown, a blasting tube fixing device for directional blasting in a mine in this embodiment is used to fix the blasting tube and quickly clamp it in a blasting hole. The blasting tube fixing device for directional blasting in a mine includes an upper pipe hoop 1, a lower pipe hoop 2, a bolt 3, a nut 4, a reference sleeve 5 and a quick clamping structure 6, wherein the lower pipe hoop 2 is fixed to the tail of the reference sleeve 5, the upper pipe hoop 1 is movably connected to the reference sleeve 5, the upper pipe hoop 1, the lower pipe hoop 2, the bolt 3 and the nut 4 are used to complete the fixation of the blasting tube, and the reference sleeve 5 and the quick clamping structure 6 are used to enable the blasting tube fixing device for directional blasting in a mine to be quickly clamped in a blasting hole.

[0030] First, in order to facilitate understanding of how the blasting tube is fixed, the upper pipe clamp 1, the lower pipe clamp 2, the bolt 3 and the nut 4 are described as follows: Figure 1 and3 As shown, the upper pipe hoop 1 and the lower pipe hoop 2 are arranged opposite to each other and have side wings on both sides. The upper pipe hoop 1 and the lower pipe hoop 2 are provided with a accommodating area for the blasting tube, and assembly holes are provided on the upper pipe hoop 1 and the lower pipe hoop 2. The assembly holes are provided on the side wings. The bolts 3 are connected to the upper pipe hoop 1 and the lower pipe hoop 2 through the assembly holes, and the nuts 4 are threadedly connected to the outer sides of the bolts 3.

[0031] It should be noted that the number of nuts 4 and bolts 3 are both two groups, and there are two groups of assembly holes on the upper pipe hoop 1 and the lower pipe hoop 2. The bolts 3 pass through the two groups of assembly holes on the same side and then are threadedly connected with the nuts 4.

[0032] Thus, the fixing operation of the bursting tube is to first place the bursting tube on the lower pipe hoop 2, move the upper pipe hoop 1 downward to fit with the bursting tube, and finally rotate the nut 4 until the nut 4 fits tightly against the bottom of the side wing of the lower pipe hoop 2.

[0033] Secondly, as the focus of this application, for the convenience of understanding, the blasting tube fixing device for directional blasting in mines can be quickly mounted in the blasting hole, such as Figure 1 , 4 As shown in Figure 5, the quick-fitting structure 6 includes a sleeve 61, a plurality of shields 62 and an elastic support component 63, wherein the elastic support component 63 is arranged on the side of the shield 62 close to the sleeve 61, so that the shield 62 can be close to or away from the sleeve 61, and adapt to blasting holes of different diameters within a certain range. In addition, in the preferred design, the shield 62, the sleeve 61 and the reference sleeve 5 are coaxially arranged, and the number of the shields 62 is four groups, that is, the four groups of shields 62 are distributed in a circular array on the outside of the sleeve 61, and the shields 62 are a structure that is narrow in front and wide in the back, that is, Figure 3 As shown, when the shield 62 is viewed from the front, the distance between its highest point and the axis of the sleeve 61 gradually increases from front to back, that is, the distance between the highest point of the front side of the shield 62 and the axis of the sleeve 61 is smaller than the distance between the highest point of the rear side and the axis of the sleeve 61. In this way, when the front radius of the shield 62 is smaller than the radius of the blasting hole, the shield 62 can quickly extend into the blasting hole, and as the shield 62 gradually extends into the blasting hole, it can gradually contact and clamp with the inner wall of the blasting hole, thereby realizing the rapid installation of the blasting tube fixing device for directional blasting in mines.

[0034] For further description of the elastic support member 63, Figure 5As shown, there is a spacing interval between the sleeve 61 and the reference sleeve 5, that is, the inner diameter of the sleeve 61 is larger than the outer diameter of the reference sleeve 5, thereby providing a movable space for the elastic support component 63. Specifically, a movable hole is opened on the outer side of the sleeve 61, and the elastic support component 63 includes a sleeve rod 631. The diameter of the sleeve rod 631 is equal to that of the movable hole and is movably connected. The side of the sleeve rod 631 away from the shield 62 passes through the movable hole and is fixed with a baffle 632. The diameter of the baffle 632 is larger than the diameter of the movable hole and is located in the spacing interval. A spring 633 is arranged on the outer side of the sleeve rod 631. The spring 633 is located between the baffle 632 and the sleeve 61, thereby realizing elastic support for the shield 62.

[0035] It should be noted that the number of movable holes is determined by the elastic support components 63. There are at least four groups of elastic support components 63, which are respectively connected to the corresponding shield sheets 62. A spacer frame 64 is fixed between the sleeve 61 and the reference sleeve 5 to allow a spacing interval between the sleeve 61 and the reference sleeve 5.

[0036] During operation, when the front radius of the shield 62 is smaller than the radius of the blasting hole, that is, when the distance between the highest point on the front side of the shield 62 and the axis of the sleeve 61 is smaller than the radius of the blasting hole, the front section of the shield 62 is directly pushed into the blasting hole. As the shield 62 gradually extends in, a number of shields 62 will elastically contact the inner wall of the blasting hole. In this way, the blasting tube fixing device for directional blasting in mines can quickly complete the clamping work, and there is no need to press the shield 62 toward the sleeve 61 before operation, which provides convenient operation. In addition, the design of the elastic support component 63 can provide the shield 62 with a movable space, so that the blasting tube fixing device for directional blasting in mines can adapt to blasting holes of different diameters within a certain range. Here, the certain range refers to the blasting hole diameter being greater than the distance between the highest point on the front side of the shield 62 and the axis of the sleeve 61 being less than the radius of the blasting hole, and the distance between the highest point on the rear side of the shield 62 and the axis of the sleeve 61 being greater than the radius of the blasting hole.

[0037] In addition, considering the complex environment of the mine, some blasting tubes are set in the rock wall of the mine, where potholes are prone to occur and need to be strengthened and fixed. For this reason, in a certain embodiment, Figure 1-4 As shown, the blasting tube fixing device for directional blasting in mines also includes a reinforcing component 7, which can be rotatably connected to the outside of the bolt 3 so that the reinforcing component 7 can be adjusted in position.

[0038] In order to allow the reinforcement component 7 to be adjusted in multiple directions to adapt to different fixing directions, such as Figure 4As shown, the reinforcement component 7 includes an assembly strip 71 and a fixed anchor rod 72, wherein the assembly strip 71 can be rotatably connected to the outside of the bolt 3, that is, an adaptation hole is opened on the assembly strip 71, and the assembly strip 71 is movably installed on the outside of the bolt 3 through the adaptation hole. In this way, when the fixed anchor rod 72 is not driven into the soil layer of the mine, the assembly strip 71 can rotate around the bolt 3, thereby changing the orientation of the fixed anchor rod 72 driven into the soil layer of the mine.

[0039] Furthermore, in order to further improve the fixed position of the fixed anchor rod 72, the fixed anchor rod 72 can be rotatably connected to the side of the assembly strip 71 away from the bolt 3. The side of the assembly strip 71 away from the bolt 3 has a notch, and an axial column is arranged at the notch. The axial column is arranged vertically to the bolt 3, and an extension plate 73 is rotatably connected to the outer side of the axial column. The extension plate 73 has a positioning hole, and the fixed anchor rod 72 is arranged in the positioning hole. In this way, the fixed anchor rod 72 can rotate around the axial column as the center, and the position of the fixed anchor rod 72 driven into the soil layer of the mine can also be adjusted.

[0040] In this way, the entire operation process is: when the distance between the highest point on the front side of the shield 62 and the axis line of the sleeve 61 is less than the radius of the blasting hole, the front section of the shield 62 is directly pushed into the blasting hole. As the shield 62 gradually extends in, a number of shields 62 will elastically contact the inner wall of the blasting hole. In this way, the blasting tube fixing device for directional blasting in mines can quickly complete the clamping and fixing work. When reinforcement is needed later, since the fixed anchor rod 72 can rotate around the bolt 3 and the shaft column, the orientation of the fixed anchor rod 72 can be adjusted according to actual needs to cope with the reinforcement of the fixed anchor rod 72 in different orientations under the complex mining environment.

[0041] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A blasting tube fixing device for directional blasting in mines, comprising an upper pipe hoop (1), a lower pipe hoop (2), a bolt (3) and a nut (4), wherein the upper pipe hoop (1) and the lower pipe hoop (2) are provided with a blasting tube accommodation area, the upper pipe hoop (1) and the lower pipe hoop (2) are provided with assembly holes, the bolt (3) is connected to the upper pipe hoop (1) and the lower pipe hoop (2) through the assembly holes, and the nut (4) is threadedly connected to the outer side of the bolt (3), characterized in that: Also includes: A reference sleeve (5), wherein the lower pipe hoop (2) is fixed to the tail of the reference sleeve (5), and the upper pipe hoop (1) is movably connected to the reference sleeve (5); The quick clamping structure (6) comprises a sleeve (61), a plurality of shields (62) which are narrow in front and wide in the back are arranged on the outer side of the sleeve (61), so that the shields (62) can be quickly extended into the blasting hole, and an elastic supporting component (63) is arranged on the side of the shield (62) close to the sleeve (61), so that the shield (62) can be close to or away from the sleeve (61).

2. A blasting tube fixing device for directional blasting in mines according to claim 1, characterized in that: There is a spacing interval between the sleeve (61) and the reference sleeve (5), a movable hole is opened on the outer side of the sleeve (61), the elastic support component (63) comprises a sleeve rod (631), a side of the sleeve rod (631) away from the shield plate (62) passes through the movable hole and is fixed with a baffle (632), a spring (633) is arranged on the outer side of the sleeve rod (631), and the spring (633) is located between the baffle (632) and the sleeve (61).

3. A blasting tube fixing device for directional blasting in mines according to claim 2, characterized in that: A spacer frame (64) is fixed between the sleeve (61) and the reference sleeve (5), so that the sleeve (61) and the reference sleeve (5) have the spacing interval.

4. A blasting tube fixing device for directional blasting in mines according to claim 3, characterized in that: The shield (62), the sleeve (61) and the reference sleeve (5) are coaxially arranged.

5. A blasting tube fixing device for directional blasting in mines according to claim 4, characterized in that: The number of the shield plates (62) is four groups, and the four groups of shield plates (62) are distributed in a circular array.

6. A blasting tube fixing device for directional blasting in mines according to any one of claims 1 to 5, characterized in that: It also includes a reinforcing component (7), which can be rotatably connected to the outer side of the bolt (3) so that the reinforcing component (7) can be adjusted in position.

7. A blasting tube fixing device for directional blasting in mines according to claim 6, characterized in that: The reinforcing component (7) comprises an assembly strip (71) and a fixing anchor rod (72), wherein the assembly strip (71) is rotatably connected to the outer side of the bolt (3), and the fixing anchor rod (72) is rotatably connected to a side of the assembly strip (71) away from the bolt (3).

8. A blasting tube fixing device for directional blasting in mines according to claim 7, characterized in that: The assembly strip (71) has a notch on one side away from the bolt (3), a shaft column is arranged at the notch, an extension plate (73) is rotatably connected to the outer side of the shaft column, the extension plate (73) has a positioning hole, and the fixing anchor rod (72) is arranged in the positioning hole.

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