A blast positioning assembly for an open pit mine

Abstract

The utility model relates to the technical field of auxiliary blasting, and particularly discloses an open pit blasting positioning assembly, which comprises a positioning assembly for positioning and supporting explosives, a rotating rod is connected through the middle of the positioning assembly, the middle of the rotating rod is provided with an expansion connecting assembly, and a resisting assembly is arranged at the two ends of the expansion connecting assembly to resist and fix the positioning assembly, the positioning assembly comprises two symmetrical fixing bases, a through hole is formed in the middle of the fixing base and connected with the rotating rod, and the utility model can accurately fix the explosives at the preset blasting position through the cooperation of the positioning assembly, the expansion connecting assembly and the resisting assembly, the threaded connection between the rotating rod and the column can accurately adjust the position of the column, the expansion connecting assembly expands the column, the resisting assembly further fixes the column, the explosives are prevented from sliding, and the blasting accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of blasting auxiliary technology, specifically to a blasting positioning component for open-pit mines. Background Technology

[0002] Open-pit mining is a method of extracting shallowly buried ore directly from the surface under open conditions. First, drilling equipment is used to drill holes in the ore rock to provide space for explosives. Explosives are then loaded into the holes and detonated, breaking the ore rock into blocks suitable for excavation. The blasting effect directly affects the efficiency of subsequent mining, loading, and transportation. Blasting methods include shallow-hole blasting and deep-hole blasting, and the selection must be based on factors such as the properties of the ore rock and the scale of the mining operation.

[0003] During blasting, explosives are typically packed inside the borehole. However, the borehole diameter may not perfectly match the explosive charge, causing it to slip to the bottom of the borehole during filling. This prevents the pre-set blasting location from being effectively blasted, thus affecting subsequent mining, loading, and transportation. Based on this, this application provides an open-pit mine blasting positioning component. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an open-pit mine blasting positioning component, which solves the problem that in actual blasting operations, the diameter of the drilled hole and the filling explosive column are not perfectly matched, causing the explosive to easily slip to the bottom of the inner side of the blast hole during filling, making it impossible to effectively blast at the preset blasting position, thus affecting subsequent mining, loading, and transportation.

[0005] The present invention relates to an open-pit mine blasting positioning component, comprising a positioning component for positioning and supporting explosives, wherein a rotating rod is connected through the middle of the positioning component, an expansion connecting component is provided in the middle of the rotating rod, and abutting components are provided at both ends of the expansion connecting component for fixing the positioning component by abutment. The positioning component includes two symmetrically arranged fixing seats, each fixing seat having a through hole in the middle, which is connected to the rotating rod. A column is provided between the two fixed seats. One or more through strip-shaped locking holes are arranged in a ring array on the outer side of the column. A contact plate is installed at the strip-shaped locking hole for movably connecting the expansion connection assembly with the column. The expansion connection assembly includes a sleeve that is plugged into and adapted to a rotating rod. A fixed cylinder corresponding to the abutment plate is provided on the outer side of the sleeve. A telescopic column is telescopically connected to the inner side of the fixed cylinder. A connecting block is provided at one end of the telescopic column and is adapted to the abutment plate.

[0006] As a further improvement of this utility model, one or more slots are arranged in a ring array on the outer side of the column, and an explosive loading area is provided at the slot for loading explosives.

[0007] As a further improvement of this utility model, the strip-shaped card hole is located between every two explosive installation areas, forming an equidistant interval with the explosive installation areas.

[0008] As a further improvement of this utility model, the inner side of the column is provided with an inner cavity, and the two ends of the inner cavity are provided with inner ring protrusions on the side of the two fixed seats that are close to each other. The inner side of the inner ring protrusion is provided with a thread, and the thread is threadedly connected to the rotating rod.

[0009] As a further improvement of this utility model, the abutment component includes an expansion ring, which is divided into a number of abutment plates at equal intervals.

[0010] As a further improvement of this utility model, a groove is provided in the middle of the expansion ring, and an elastic element is provided on the inner side of the groove for fixing and limiting the expansion ring.

[0011] As a further improvement of this utility model, an abutment is provided in the middle of the expansion ring, one end of which is adapted to the expansion ring to force the expansion ring to form a ring.

[0012] As a further improvement of this utility model, the abutting member is in the shape of a frustum, and a through hole is provided along the middle of the frustum shape. A mounting block is provided inside the abutting member, and a through hole is provided in the middle of the mounting block for connecting with the rotating rod.

[0013] As a further improvement of this utility model, the abutting member moves towards the expansion ring by rotating the rotating rod, which is used to squeeze and expand the expansion ring, forcing the abutting plate to move outward of the column, thereby abutting against the inner wall of the blasting area.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the coordinated operation of the positioning component, the expansion connection component, and the contact component, can accurately fix the explosive in the preset blasting position. The threaded connection between the rotating rod and the column can precisely adjust the position of the column. The expansion connection component expands the column, and the contact component further fixes it, preventing the explosive from slipping and ensuring the accuracy of the blasting. The explosive installation area is evenly distributed in a ring array on the outside of the column. Combined with the uniform expansion of the contact plate, the explosive explosion generates a uniform and all-round blasting force, which more efficiently breaks the ore and rock, improves the blasting effect, and makes the ore and rock fragments more uniform in size. Furthermore, the column is connected to the rotating rod by the inner ring protrusion, which enhances the connection stability; the elastic element in the contact assembly fixes and limits the expansion ring, ensuring that the entire positioning assembly will not easily shift or detach during the blasting process, which is highly reliable. Moreover, the expansion degree of the contact plate can be precisely controlled by rotating the rotating rod, and can be adjusted according to different blasting hole diameters and actual needs, adapting to various complex open-pit mining conditions. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of the positioning component of this utility model; Figure 2 This is a top view of the positioning component of this utility model; Figure 3 This is a side view of the positioning component of this utility model. Figure 4 for Figure 3 Schematic diagram of the structure of section AA in the middle; Figure 5 This is a three-dimensional structural diagram of the positioning component of this utility model from another angle; Figure 6 This is a schematic diagram of the three-dimensional structure of the column of this utility model; Figure 7 This is a top view of the column structure of this utility model; Figure 8 for Figure 7 Schematic diagram of the structure of the middle BB section; Figure 9 This is a schematic diagram of the combined structure of the column, rotating rod, expansion connection assembly, and ground contact assembly of this utility model. Figure 10 This is a top view of the expansion connection component of this utility model; Figure 11 This is a three-dimensional structural diagram of the contact component of this utility model; Figure 12 This is a side view of the contact component of this utility model. Figure 13 This is a three-dimensional structural diagram of the contact component of this utility model from another angle; Figure 14 This is a front view structural diagram of the contact component of this utility model.

[0016] In the diagram: 1. Positioning component; 2. Rotating rod; 3. Expansion connection component; 4. Abutment component; 11. Fixing base; 12. Column; 13. Explosive installation area; 14. Contact plate; 15. Inner ring protrusion; 16. Through hole; 17. Inner cavity; 31. Connecting block; 32. Sleeve; 33. Telescopic column; 34. Fixing cylinder; 41. Abutting component; 42. Expansion ring; 43. Groove; 44. Mounting block; 45. Elastic component. Detailed Implementation

[0017] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0018] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0019] Please see Figures 1 to 9 The open-pit mine blasting positioning component 1 provided in this application includes a positioning component 1 for positioning and supporting explosives. A rotating rod 2 is connected through the middle of the positioning component 1. An expansion connecting component 3 is provided in the middle of the rotating rod 2. Abutting components 4 are provided at both ends of the expansion connecting component 3 for resisting and fixing the positioning component 1. The positioning component 1 includes two symmetrically arranged fixing seats 11. A through hole 16 is provided in the middle of the fixing seat 11 and is connected to the rotating rod 2 through hole. A column 12 is provided between the two fixed seats 11. One or more through strip-shaped locking holes are arranged in a ring array on the outer side of the column 12. A contact plate 14 is installed at the strip-shaped locking hole to cooperate with the expansion connection assembly 3 to be movably connected to the column 12. The expansion connection assembly 3 includes a sleeve 32, which is plugged into and adapted to the rotating rod 2. A fixed cylinder 34 corresponding to the contact plate 14 is provided on the outer side of the sleeve 32. A telescopic column 33 is telescopically connected to the inner side of the fixed cylinder 34. A connecting block 31 is provided at one end of the telescopic column 33, and the connecting block 31 is adapted to the contact plate 14.

[0020] The positioning component 1 consists of two symmetrically arranged fixed seats 11. Each of the two fixed seats 11 has a through hole 16 in the middle. The rotating rod 2 passes through the through hole 16, so that the positioning component 1 and the rotating rod 2 are connected and the rotating rod 2 can move to a certain extent relative to the positioning component 1.

[0021] A column 12 is provided between two fixed seats 11. One or more through strip-shaped locking holes are distributed in a ring array on the outer side of the column 12. The strip-shaped locking holes are the key positions for installing the contact plate 14. The contact plate 14 is installed at the strip-shaped locking holes. Its function is to cooperate with the expansion connection component 3 to enable the column 12 to achieve a movable connection. Specifically, the contact plate 14 can move within a certain range within the strip-shaped locking holes to adapt to different positioning and expansion requirements.

[0022] Furthermore, the sleeve 32 is plugged into and adapted to the rotating rod 2, ensuring that the sleeve 32 can be stably installed on the rotating rod 2 and can rotate with the rotating rod 2.

[0023] The outer side of the sleeve 32 is provided with a fixed cylinder 34 corresponding to the abutment plate 14. The inner side of each fixed cylinder 34 is telescopically connected with a telescopic column 33. The telescopic column 33 can telescopically move within the fixed cylinder 34. One end of the telescopic column 33 is provided with a connecting block 31, which is adapted to the abutment plate 14. When the telescopic column 33 telescopically moves within the fixed cylinder 34, the connecting block 31 will drive the abutment plate 14 to move within the strip-shaped locking hole, thereby realizing the expansion or contraction of the column 12.

[0024] When using the open-pit mine blasting positioning component 1 in practice, the explosive is first placed in a suitable position on the positioning component 1, and the positioning component 1 provides initial positioning and support for the explosive. Then, the entire component is placed into the blasting hole in the open-pit mine.

[0025] Next, by operating the rotating rod 2, the expansion connecting assembly 3 is activated. Since the sleeve 32 is plugged into and adapted to the rotating rod 2, the rotation or movement of the rotating rod 2 will cause the sleeve 32 to move. The fixing cylinder 34 on the outside of the sleeve 32 will move together with the sleeve 32, and the telescopic column 33 inside the fixing cylinder 34 will begin to extend and retract. When the telescopic column 33 extends, the connecting block 31 pushes the abutment plate 14 to move outward in the strip-shaped locking hole, the column 12 expands, and the abutment plate 14 contacts the inner wall of the blast hole and generates a resisting force, thereby fixing the positioning assembly 1 in the preset blasting position.

[0026] The abutting components 4 located at both ends of the expansion connecting component 3 will also play a role at this time, further abutting and fixing the positioning component 1 to ensure the stability of the entire component within the blast hole. In this way, it can prevent the explosive from slipping to the bottom of the inner side of the blast hole during filling, ensuring that the preset blasting position can be effectively blasted, improving the blasting effect, and thus ensuring the smooth progress of subsequent mining, loading and transportation work.

[0027] Please see Figures 1 to 9 The outer side of the column 12 is provided with one or more slots in a ring array, and the slots are provided with explosive loading areas 13 for loading explosives.

[0028] The strip-shaped perforations are located between every two explosive installation areas 13, forming an equidistant interval with the explosive installation areas 13.

[0029] The inner side of the column 12 is provided with an inner cavity 17. The two ends of the inner cavity 17 are provided with inner ring protrusions 15 on the side where the two fixed seats 11 are close to each other. The inner ring protrusions 15 are threaded on the inner side, and the threads are threaded to the rotating rod 2.

[0030] One or more slots are arranged in a ring array on the outer side of the column 12. These slots are the explosive loading areas 13. Workers can fill the explosives into these areas. The ring array design allows the explosives to be evenly distributed around the column 12. When the explosives detonate, they can generate a relatively uniform and all-round blasting force, which helps to break the ore and rock more efficiently and improve the blasting effect. For example, when mining open-pit mines with relatively uniform ore hardness, this evenly distributed explosives can make the ore and rock suffer similar impact forces in all directions. The broken ore and rock blocks are more uniform in size, which is convenient for subsequent mining and loading work.

[0031] The strip-shaped locking holes are located between every two explosive installation areas 13 and are equidistant from each other. On one hand, the strip-shaped locking holes are used to install the contact plates 14. The contact plates 14, in conjunction with the expansion connecting assembly 3, realize the expansion and positioning of the column 12. The equidistant spacing ensures that the contact plates 14 apply uniform force to all parts of the column 12 during expansion, guaranteeing the overall stability and symmetry of the column 12, and thus ensuring the stability of the explosive installation area 13. On the other hand, the spacing design avoids interference between the strip-shaped locking holes and the explosive installation area 13, ensuring the normal operation of the explosive loading and positioning assembly 1. For example, if the strip-shaped locking holes and the explosive installation area 13 are too close or randomly distributed during the expansion of the column 12, the explosive may shift or be damaged, affecting the blasting effect.

[0032] The inner side of the column 12 is provided with an inner cavity 17, which provides a certain space inside the column 12. The existence of the inner cavity 17 reduces the overall weight of the column 12, making it easier to put the positioning component 1 into the blast hole; on the other hand, it also provides space for other components or structures inside the column 12 to be accommodated and move.

[0033] At both ends of the inner cavity 17, that is, on the side where the two fixed seats 11 are close to each other, there are inner ring protrusions 15. The inner side of the inner ring protrusions 15 is threaded, and this thread is threadedly connected to the rotating rod 2. This threaded connection has an important function. When the rotating rod 2 is rotated, due to the threaded engagement between the rotating rod 2 and the inner ring protrusions 15, the rotation of the rotating rod 2 is converted into the movement of the column 12 along the axial direction of the rotating rod 2. In actual use, by controlling the rotation direction and number of rotations of the rotating rod 2, the position of the column 12 within the blasting hole can be precisely adjusted. For example, when it is necessary to raise the column 12 slightly to achieve a more suitable blasting position, simply rotate the rotating rod 2 clockwise, and the column 12 will move upward along the rotating rod 2; conversely, rotating the rotating rod 2 counterclockwise, the column 12 will move downward. At the same time, the threaded connection also enhances the connection stability between the column 12 and the rotating rod 2, ensuring that the column 12 will not easily detach from the rotating rod 2 during the blasting process, thus guaranteeing the reliability of the entire positioning assembly 1.

[0034] After the explosive is loaded into the explosive installation area 13 outside the column 12, the positioning component 1 with the explosive is placed into the blast hole in the open-pit mine. The operator rotates the rotating rod 2 to move the column 12 up and down to the preset blasting position as needed. Then, the expansion connecting component 3 is operated to extend the telescopic column 33. The connecting block 31 pushes the contact plate 14 to move outward in the strip-shaped locking hole. The column 12 expands, and the contact plate 14 contacts and fixes itself to the inner wall of the blasting hole. At this time, the column 12 maintains a stable axial position through the threaded connection between the inner ring protrusion 15 and the rotating rod 2. The explosive is also accurately positioned in the preset blasting position, avoiding slippage and ensuring the smooth progress of subsequent blasting work and good blasting effect. This is beneficial to the subsequent mining, loading and transportation operations in the open-pit mine.

[0035] Please see Figures 9 to 14 The abutment component 4 includes an expansion ring 42, which is divided into a number that corresponds one-to-one with the abutment plate 14 at equal intervals.

[0036] The expansion ring 42 has a groove 43 in the middle, and an elastic element 45 is provided on the inner side of the groove 43 for fixing and limiting the expansion ring 42.

[0037] An abutment 41 is provided in the middle of the expansion ring 42. One end of the abutment 41 is adapted to the expansion ring 42, forcing the expansion ring 42 to form a ring.

[0038] In some embodiments, the abutment 41 is frustum-shaped, and a through hole is provided along the middle of the frustum shape. A mounting block 44 is installed inside the abutment 41, and a through hole is provided in the middle of the mounting block 44 for connecting with the rotating rod 2.

[0039] The contact member 41 moves toward the expansion ring 42 by rotating the rotating rod 2, and is used to squeeze and expand the expansion ring 42, forcing the contact plate 14 to move outward of the column 12, thereby contacting the inner wall of the blasting area.

[0040] The contact assembly 4 includes an expansion ring 42, which is divided into sections at equal intervals corresponding to the number of contact plates 14. This ensures that the expansion ring 42 can precisely engage with the contact plates 14. For example, if there are three contact plates 14 on the outside of the column 12, the expansion ring 42 will be divided into three equal sections. In this way, during subsequent expansion, each section of the expansion ring 42 corresponds to one contact plate 14, achieving uniform and effective expansion and ensuring that the column 12 experiences balanced forces in all directions within the blast hole, thus stably fixing it in the preset position.

[0041] The expansion ring 42 has a groove 43 in the middle, and an elastic element 45 is installed inside the groove 43. The main function of the elastic element 45 is to fix and limit the expansion ring 42. When no expansion operation is performed, the elastic element 45 can keep the expansion ring 42 in a relatively stable initial state, preventing it from shaking or deforming at will. When the expansion ring 42 is subjected to external force and begins to expand, the elastic element 45 will generate elastic deformation and store energy. When the external force disappears, the elastic element 45 will return to its original shape, driving the expansion ring 42 back to its initial state or assisting it to contract, preparing it for the next use. For example, the elastic element 45 can be a spring, and the elasticity of the spring can effectively realize the function of fixing and resetting the expansion ring 42.

[0042] It should be noted that one end of the abutment 41 is adapted to the expansion ring 42, and its function is to force the expansion ring 42 to form a ring. The abutment 41 is frustum-shaped. This shape design allows it to apply pressure evenly to all parts of the expansion ring 42 when it moves towards the expansion ring 42, achieving a smooth expansion effect. A through hole is provided along the middle of the frustum shape, and a mounting block 44 is installed there. The mounting block 44 also has a through hole in its middle for connecting with the rotating rod 2. Through this connection method, the abutment 41 can move on the rotating rod 2, making subsequent expansion operations possible.

[0043] When it is necessary to position and fix the explosive at the preset blasting location, the operator rotates the rotating rod 2. Since the contact member 41 is connected to the rotating rod 2 through the mounting block 44, the rotation of the rotating rod 2 will cause the contact member 41 to move along the rotating rod 2 towards the expansion ring 42. As the contact member 41 moves, its frustum-shaped structure will gradually compress the expansion ring 42. Because the expansion ring 42 is divided into parts corresponding to the contact plate 14, the expansion ring 42 will expand outward evenly after being compressed. The expansion of the expansion ring 42 will push the corresponding contact plate 14 to move outward in the strip-shaped locking hole, so that the contact plate 14 contacts the inner wall of the blasting area and generates a resisting force. In this way, the entire positioning component 1 is firmly fixed in the blasting hole, and the explosive is accurately positioned in the preset position, avoiding the problem of the explosive slipping, ensuring that the subsequent blasting work can be carried out smoothly according to the preset plan, improving the blasting effect, and benefiting the subsequent mining, loading and transportation operations in open-pit mines.

[0044] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A positioning component for open-pit mine blasting, comprising a positioning component (1) for positioning and supporting explosives, wherein a rotating rod (2) is connected through the middle of the positioning component (1), an expansion connecting component (3) is provided in the middle of the rotating rod (2), and abutment components (4) are provided at both ends of the expansion connecting component (3); characterized in that: The positioning component (1) includes two symmetrically arranged fixing seats (11), and a through hole (16) is provided in the middle of the fixing seat (11) and is connected to the rotating rod (2). A column (12) is provided between the two fixed seats (11). One or more through strip-shaped locking holes are arranged in a ring array on the outer side of the column (12). A contact plate (14) is installed at the strip-shaped locking hole to cooperate with the expansion connection assembly (3) and the column (12) for movable connection. The expansion connection assembly (3) includes a sleeve (32), which is plugged into and adapted to the rotating rod (2). A fixed cylinder (34) corresponding to the contact plate (14) is provided on the outer side of the sleeve (32). A telescopic column (33) is telescopically connected to the inner side of the fixed cylinder (34). A connecting block (31) is provided at one end of the telescopic column (33), and the connecting block (31) is adapted to the contact plate (14).

2. The open-pit mine blasting positioning component according to claim 1, characterized in that: The outer side of the column (12) is provided with one or more slots in a ring array, and the slots are provided with explosive loading areas (13) for loading explosives.

3. The open-pit mine blasting positioning component according to claim 1, characterized in that: The strip-shaped perforation is located between every two explosive installation areas (13), forming an equidistant interval with the explosive installation areas (13).

4. The open-pit mine blasting positioning component according to claim 1, characterized in that: The inner side of the column (12) is provided with an inner cavity (17). The two ends of the inner cavity (17) are provided with inner ring protrusions (15) on the side where the two fixed seats (11) are close to each other. The inner ring protrusions (15) are threaded on the inner side, and the threads are threaded to the rotating rod (2).

5. The open-pit mine blasting positioning component according to claim 1, characterized in that: The abutment component (4) includes an expansion ring (42), which is divided into a number of abutment plates (14) at equal intervals.

6. The open-pit mine blasting positioning component according to claim 5, characterized in that: The expansion ring (42) has a groove (43) in the middle, and an elastic element (45) is provided on the inner side of the groove (43) for fixing and limiting the expansion ring (42).

7. The open-pit mine blasting positioning component according to claim 5, characterized in that: An abutment (41) is provided in the middle of the expansion ring (42), and one end of the abutment (41) is adapted to the expansion ring (42) to force the expansion ring (42) to form a ring.

8. The open-pit mine blasting positioning component according to claim 7, characterized in that: The abutment (41) is frustum-shaped, and a through hole is provided along the middle of the frustum-shaped part. A mounting block (44) is provided inside the abutment (41), and a through hole is provided in the middle of the mounting block (44) for connecting with the rotating rod (2).

9. The open-pit mine blasting positioning component according to claim 7, characterized in that: The abutment (41) moves toward the expansion ring (42) by rotating the rotating rod (2) to squeeze and expand the expansion ring (42), forcing the abutment plate (14) to move toward the outside of the column (12), thereby abutting against the inner wall of the blasting area.

Images