Tamping bar assembly for deep hole blasting

Abstract

The utility model relates to the technical field of engineering blasting devices, and discloses a tamping bar assembly for deep hole blasting, which comprises a tamping bar body, the tamping bar body is formed by sequentially connecting a plurality of connecting rods end to end, the end parts of two adjacent connecting rods are detachably connected through a quick connecting piece, and the quick connecting piece comprises a male joint and a female joint; the male joint comprises a first connecting seat, one end of the first connecting seat is fixedly connected with the end part of the connecting rod, the other end of the first connecting seat is provided with two clamping plates, the two clamping plates are respectively provided with clamping jaws which extend oppositely, and the end parts, provided with the clamping jaws, of the two clamping plates are arranged to be capable of elastically expanding outwards; the female joint comprises a second connecting seat, one end of the second connecting seat is fixedly connected with the end part of the connecting rod, and the other end of the second connecting seat is provided with a clamping groove for clamping the clamping claws on the two clamping plates; according to the tamping bar assembly, the situation that the tamping bar assembly is broken due to insufficient strength in the hole exploration or charging process and even is left in a blast hole due to breaking can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering blasting devices, in particular to a blasting stick assembly for deep hole blasting. Background Art

[0002] As the depth of coal mining continues to increase, the geological conditions become more complex and changeable, and coal mining faces often encounter hard faults. When it is impossible to use hard cutting, top picking, bottom lying and other methods to pass through the hard faults, it is necessary to take appropriate weakening measures for the hard faults. Deep hole blasting is one of the current effective methods for weakening hard fault rocks.

[0003] The blasting stick plays an important role in the deep hole blasting process. Before charging, the blasting hole quality needs to be detected and inspected by the blasting stick; when charging, the blasting stick is needed to push the explosive roll to the bottom of the blasting hole. In particular, the length of the explosive section for existing deep hole blasting is generally more than 30 meters, and it is impossible to load the entire section at one time. It is necessary to use the blasting stick to push the explosive roll into the blasting hole in sections.

[0004] Existing blasting rods are generally made of multiple thin-walled PVC pipes connected end to end. The joints and the blasting rod body are made of PVC. There are many problems in actual use: (1) During the exploration process, if drill cuttings and silt are encountered, the blasting rod is easily sucked and cannot be withdrawn to the hole mouth of the blasting hole normally. If it is pulled hard, it is easy to cause the blasting rod to break, resulting in the loss of the blasting rod; (2) The structural strength of the existing blasting rod is low. When the blasting hole is blocked by collapsed gravel, it is impossible to deal with the gravel that causes the blockage. It can only explore the blasting hole and has a single function; (3) If the worker operates improperly, it is easy to cause the blasting rod to break in the blasting hole, which seriously affects the charging process of deep hole blasting; (4) During the charging process, if a blockage is encountered and a strong external force needs to be applied, the blasting rod connection is prone to breakage, which not only seriously affects the charging efficiency, but also causes the loss of the blasting rod. In addition, when the remaining length of the blasting rod in the blasting hole is greater than the distance of the explosive detonation, there will be great safety hazards. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model provides a blasting stick assembly for deep hole blasting.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a blasting stick assembly for deep hole blasting, the blasting stick assembly includes a blasting stick body, the blasting stick body includes a plurality of connecting rods connected end to end in sequence, the ends of two adjacent connecting rods are detachably connected by a quick connector, the quick connector includes a male connector and a female connector; the male connector includes a first connecting seat, one end of the first connecting seat is fixedly connected to the end of the connecting rod, the other end of the first connecting seat is provided with two clamping plates arranged along its circumferential interval, the ends of the two clamping plates away from the first connecting seat are respectively provided with claws extending toward each other, and the ends of the two clamping plates provided with the claws are arranged to be able to open elastically outward; the female connector includes a second connecting seat, one end of the second connecting seat is fixedly connected to the end of the connecting rod, and the other end of the second connecting seat is provided with a clamping groove for the clamping claws on the two clamping plates to be clamped into.

[0007] Optionally, the two clamping plates are rotatably connected to the first connecting seat via latches respectively, and a spring is provided between the ends of the two clamping plates away from the claws, and the spring is used to drive the claws on the two clamping plates to approach each other.

[0008] Optionally, the outer end of the claw is formed as a first inclined surface extending inwardly and toward the inner end; and / or the outer side of the clamping groove is formed with two symmetrically arranged second inclined surfaces extending outwardly and toward the inner end.

[0009] Optionally, a limit block is provided on the first connecting seat between the latch and the claw, and the limit block is used to stop the clamping plate so that a distance is formed between the two claws.

[0010] Optionally, the inner groove wall of the clamping groove is arranged to be an arc shape concave toward the second connecting seat, and the outer ends of the two clamping plates are arranged to be an arc shape that can cooperate with the inner groove wall of the clamping groove to allow the male connector to rotate relative to the female connector, and a splitting tip portion is arranged on the outer groove wall of the clamping groove, and the splitting tip portion is used to spread the two clamping claws apart to disengage them from the clamping groove when the male connector rotates relative to the female connector.

[0011] Optionally, both ends of the connecting rod are respectively threadedly connected to the male connector or the female connector.

[0012] Optionally, the connecting rod is hollow tubular.

[0013] Optionally, a rock-breaking borehole head is provided at the end of the blasting stick body inserted into the blasting hole. The rock-breaking borehole head is configured as a hollow tube and is arranged coaxially with the blasting stick body, and a conical tip is provided at the end of the rock-breaking borehole head away from the blasting stick body.

[0014] Optionally, the rock breaking and drilling head is detachably connected to the blasting stick body via the quick connector.

[0015] Optionally, the rock breaking and drilling head includes a first equal diameter section, a tapered section and a second equal diameter section arranged in sequence, the conical tip is arranged on the first equal diameter section, the second equal diameter section is used to connect with the gun stick body through the quick connector, and the outer diameter of the tapered section gradually decreases from the first equal diameter section in a direction toward the second equal diameter section.

[0016] In the technical solution provided by the utility model, a quick connector is provided between two connecting rods to achieve a detachable connection, the quick connector includes a male connector and a female connector, and two clamping plates are provided on the first connecting seat of the male connector, and the ends of the two clamping plates provided with clamping claws can be elastically opened outwards, so as to be conveniently clamped to the clamping groove of the female connector. When disassembly is required, the ends of the two clamping plates provided with clamping claws are opened outwards to separate the male connector from the female connector.

[0017] Based on the structure of the male joint and the female joint provided by the utility model, not only can quick connection and disassembly be achieved, but also stronger and more durable materials can be used at a lower cost to improve the connection strength of the two adjacent connecting rods, thereby avoiding the assembled blasting stick assembly from breaking due to insufficient strength during the exploration or charging process, or even avoiding the situation where the blasting stick assembly is left in the blasting hole due to breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a blasting stick assembly for deep hole blasting provided by the utility model;

[0019] Figure 2 It is a front view of a male connector and a female connector provided by the utility model;

[0020] Figure 3 It is a side view of a male connector and a female connector provided by the utility model;

[0021] Figure 4 It is an axonometric diagram of a male joint and a female joint provided by the utility model;

[0022] Figure 5 It is a structural schematic diagram of a female connector provided by the utility model;

[0023] Figure 6 The utility model is a structural schematic diagram of a connecting rod provided by the utility model.

[0024] Description of Reference Numerals

[0025] 10. Baton body; 11. Connecting rod; 20. Male joint; 21. First connecting seat; 22. Clamping plate; 23. Clamping claw; 231. First inclined surface; 24. Latch; 25. Spring; 26. Limiting block; 30. Female joint; 31. Second connecting seat; 32. Clamping groove; 321. Second inclined surface; 322. Inner groove wall; 323. Outer groove wall; 33. Splitting tip; 40. Rock breaking and drilling head; 401. First equal diameter section; 402. Tapered section; 403. Second equal diameter section; 41. Conical tip. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] See also Figure 1 As shown, the utility model provides a gun stick assembly for deep hole blasting, the gun stick assembly includes a gun stick body 10, the gun stick body 10 includes a plurality of connecting rods 11 connected end to end in sequence, the ends of two adjacent connecting rods 11 are detachably connected by a quick connector, the quick connector includes a male connector 20 and a female connector 30; the male connector 20 includes a first connecting seat 21, one end of the first connecting seat 21 is fixedly connected to the end of the connecting rod 11, the other end of the first connecting seat 21 is provided with two clamping plates 22 arranged along its circumferential interval, the ends of the two clamping plates 22 away from the first connecting seat 21 are respectively provided with claws 23 extending toward each other, and the ends of the two clamping plates 22 provided with the claws 23 are arranged to be able to elastically open outward; the female connector 30 includes a second connecting seat 31, one end of the second connecting seat 31 is fixedly connected to the end of the connecting rod 11, and the other end of the second connecting seat 31 is provided with a clamping groove 32 for the clamping claws 23 on the two clamping plates 22 to be clamped.

[0028] In the existing gun stick structure, two adjacent connecting rods 11 are directly connected by threaded connection, which is time-consuming and labor-intensive to disassemble and assemble, and the connection strength is not high. It is easy to break during use, which seriously affects the efficiency of gun stick drilling and charging.

[0029] In the technical solution provided by the utility model, a quick connector is provided between the two connecting rods 11 to achieve a detachable connection, wherein the quick connector includes a male connector 20 and a female connector 30, and two clamping plates 22 are provided on the first connection seat 21 of the male connector 20, and the ends of the two clamping plates 22 provided with the clamping claws 23 can be elastically opened outwards, so that they can be conveniently clamped to the clamping groove 32 of the female connector 30. When disassembly is required, the ends of the two clamping plates 22 provided with the clamping claws 23 are opened outwards to separate the male connector 20 from the female connector 30.

[0030] It should be noted that, compared with directly setting a connection structure on the adjacent ends of two connecting rods 11, such as an internal thread and an external thread for threaded connection, the utility model respectively sets a male connector 20 and a female connector 30 on the adjacent ends of the two connecting rods 11. Based on the structure of the male connector 20 and the female connector 30 provided by the utility model, not only can quick connection and disassembly be achieved, but also a more durable material can be used at a lower cost to improve the connection strength of the two adjacent connecting rods 11, thereby avoiding the assembled gun stick assembly from breaking due to insufficient strength during the exploration or charging process, or even remaining in the blasting hole due to breaking. Exemplarily, the male connector 20 and the female connector 30 in the utility model can be made of stainless steel.

[0031] In the present invention, on the male connector 20 , the ends of the two clamping plates 22 provided with the clamping claws 23 can be elastically opened outward in any appropriate form, so as to be clamped into the clamping groove 32 on the female connector 30 .

[0032] In some embodiments, in combination Figure 2 , Figure 3 and Figure 4 As shown, the two clamping plates 22 are rotatably connected to the first connecting seat 21 through the pins 24 respectively, and a spring 25 is provided between the ends of the two clamping plates 22 away from the claws 23, and the spring 25 is used to drive the claws 23 on the two clamping plates 22 to approach each other.

[0033] It should be noted that, in the initial state, the spring 25 is in a slightly compressed state, and its elastic force pushes the two clamping plates 22 at the same time, so that the claws 23 on the two clamping plates 22 can approach each other; in the clamping process of the male connector 20 and the female connector 30, the two clamping plates 22 can open outward in the process of pushing the outer side of the clamping groove 32, and the spring 25 is further compressed in this process. After the claws 23 are clamped into the clamping groove 32, the spring 25 can return to the aforementioned initial state, that is, the elastic force is maintained to drive the claws 23 on the two clamping plates 22 to approach each other, so as to ensure the clamping fixation of the male connector 20 and the female connector 30.

[0034] In the utility model, in order to enable the ends of the two clamping plates 22 provided with the claws 23 to be easily opened in the process of pushing the outer side of the clamping groove 32, the outer end of the claw 23 is formed as a first inclined surface 231 extending inwardly and toward the inner end; it can be understood that the first inclined surface 231 at the outer end of the claw 23 can be tightly attached to the outer side of the clamping groove 32 and gradually push the two clamping plates 22 outward in the process of the male connector 20 approaching the female connector 30.

[0035] Correspondingly, in order to match the first inclined surfaces 231 at the outer ends of the two claws 23 , the outer side of the engaging groove 32 is formed with two symmetrically arranged second inclined surfaces 321 extending outward and inward.

[0036] It should be noted that in the present utility model, by forming the outer end of the claw 23 into a first inclined surface 231, it is possible to facilitate the clamping of the claws 23 on the two clamping plates 22 into the clamping groove 32 of the female connector 30. However, the setting of the first inclined surface 231 will inevitably reduce the axial thickness of the claw 23 on the first connecting seat 21, thereby weakening the connection strength of the claw 23 clamped into the clamping groove 32 to a certain extent.

[0037] In some embodiments, a stopper 26 is provided on the first connection seat 21 between the latch 24 and the claw 23, and the stopper 26 is used to stop the clamping plate 22 so that a gap is formed between the two claws 23. The clamping plate 22 is stopped by providing the stopper 26 to prevent the claws 23 on the two clamping plates 22 from directly contacting each other under the action of the spring 25, that is, the gap is formed so that the claws 23 on the two clamping plates 22 can be easily clamped into the clamping groove 32 of the female connector 30.

[0038] In some embodiments, in combination Figure 5 As shown, the inner groove wall 322 of the clamping groove 32 is set to be an arc shape concave toward the second connecting seat 31, and the outer ends of the two clamping plates 22 are set to be an arc shape that can cooperate with the inner groove wall 322 of the clamping groove 32 to allow the male connector 20 to rotate relative to the female connector 30, and a splitting portion 33 is provided on the outer groove wall 323 of the clamping groove 32, and the splitting portion 33 is used to prop open the two claws 23 to disengage them from the clamping groove 32 when the male connector 20 rotates relative to the female connector 30.

[0039] Through the above-mentioned structural setting, when the male connector 20 and the female connector 30 need to be separated, the male connector 20 can be rotated relative to the female connector 30, and the two claws 23 can be stretched open by using the splitting tip 33 set on the outer groove wall 323 of the clamping groove 32, so that it can be disengaged from the clamping groove 32.

[0040] In a specific embodiment of the present utility model, the male connector 20 is made of stainless steel, is cylindrical throughout, has a length of 110 mm and an outer diameter of 45 mm; the first end of the male connector 20 is provided with a threaded connection section that can be threadedly connected to the connecting rod 11, has a length of 40 mm, and an inner diameter of the threaded connection section is 29 mm; the second end of the male connector 20 opposite to the first end is provided with two clamping plates 22, the clamping plates 22 are 63 mm long, 25 mm wide, and 10 mm high, the cross-section of the clamping plates 22 is a semicircular arch as a whole and extends out of the cylindrical section by 35 mm, the cross-section of the claw 23 is a trapezoidal, with a short side of 5 mm, a long side of 10 mm, and a height of 5 mm; the latch 24 is set at 15 mm from the bottom of the clamping plate 22, and the limit block 26 is set at 20 mm from the bottom. The female connector 30 is made of stainless steel, cylindrical, 90mm long and 45mm outside diameter. The first end of the female connector 30 is provided with a threaded connection section that can be threadedly connected to the connecting rod 11, with a length of 40mm and an inner diameter of 29mm. The second end of the female connector 30 opposite to the first end is processed by a cutting process to form a connection platform, which is 35mm long, 35mm wide and 16mm thick, with one corner being a quarter circle with a diameter of 25mm and the other corner being a quarter circle with a diameter of 45mm. The bottom edge of the connection platform is cut into a bevel with a slope of 1, that is, the second inclined surface 321 is formed, with a vertical height and a horizontal width of 5mm. A clamping groove 32 with a diameter of 25mm is excavated in the middle 22.5mm away from the bottom of the connection platform. The clamping groove 32 runs through the connection platform, and the clamping groove 32 can be engaged with the claws 23 on the two clamping plates 22 of the male connector 20. A splitting tip 33 is provided on the outer groove wall 323 of the clamping groove 32 , and the splitting tip 33 is used to open the two clamping claws 23 to make them disengage from the clamping groove 32 when the male connector 20 rotates relative to the female connector 30 .

[0041] In the present invention, the two ends of the connecting rod 11 can be connected to the male connector 20 or the female connector 30 in any appropriate manner, such as directly welded together. Alternatively, in some embodiments, the two ends of the connecting rod 11 are respectively threadedly connected to the male connector 20 or the female connector 30. That is, by providing a threaded connection section on the male connector 20 or the female connector 30, it is directly threadedly connected to the end of the connecting rod 11.

[0042] The utility model does not impose any special restrictions on the specific arrangement of the male connector 20 and the female connector 30 on two adjacent connecting rods 11, as long as the male connector 20 and the female connector 30 can be arranged on two adjacent connecting rods 11 to achieve quick disassembly and assembly. For example, male connectors 20 are respectively arranged at both ends of one connecting rod 11, and female connectors 30 are respectively arranged at both ends of another adjacent connecting rod 11; or, in combination with Figure 1As shown, a male connector 20 and a female connector 30 are respectively provided at both ends of each connecting rod 11; it can be understood that the above implementation scheme can be adaptively selected according to actual conditions, and the utility model does not make any special limitation here.

[0043] In some embodiments, in combination Figure 6 As shown, the connecting rod 11 is a hollow tube. It is understandable that in the present utility model, the specification of the connecting rod 11 is adapted to the specification of the blasting hole. In a specific embodiment of the present utility model, the connecting rod 11 is made of PVC. To ensure the overall strength, the tube wall thickness is 8mm, the outer diameter of the tube body is 45mm, and the inner diameter is 29mm. Threaded connection sections are provided at both ends of the connecting rod 11. The length of the threaded connection section is 40mm, and the wall thickness of the threaded section is 4mm. It is understandable that two adjacent connecting rods 11 are quickly connected through the male connector 20 and the female connector 30, and the connection between the connecting rod 11 and the male connector 20 or the female connector 30 should ensure that the tube body is integrated without protruding parts, so as to avoid unnecessary scratches between the gun rod assembly and the hole wall of the blasting hole during the exploration or charging process.

[0044] In some embodiments, Figure 1 As shown, the end of the gun rod body 10 inserted into the blasting hole is provided with a rock-breaking hole-detecting head 40, which is set to be hollow tubular and arranged with the center line of the gun rod body 10, and the end of the rock-breaking hole-detecting head 40 away from the gun rod body 10 is provided with a conical tip 41. Through the above-mentioned structural arrangement, when the blasting hole is blocked by collapsed gravel, the gravel that causes the blockage can be crushed by the rock-breaking hole-detecting head 40, and the lumen of the rock-breaking hole-detecting head 40 can also accommodate gravel, drill cuttings, etc. and bring them out of the blasting hole, so as to realize the cleaning of the blasting hole while realizing the exploration of the blasting hole. Specifically, when the blasting hole is blocked by collapsed gravel, the rock-breaking hole-detecting head 40 arranged at the end of the gun rod body 10 can be used to crush the gravel that blocks the blasting hole by pulling the gun rod assembly back and forth.

[0045] In the present invention, the rock breaking and drilling head 40 and the blasting stick body 10 can be connected in any appropriate structural form. In some embodiments, the rock breaking and drilling head 40 and the blasting stick body 10 are detachably connected via the quick connector.

[0046] For example, in combination Figure 1 As shown, a male connector 20 is provided at the end of the rock breaking and hole-finding head 40 close to the gun rod body 10 , and the male connector 20 is quickly and detachably connected to the end of the gun rod body 10 where a female connector 30 is provided.

[0047] Alternatively, a female connector 30 is provided at the end of the rock breaking and hole-finding head 40 close to the gun rod body 10 , and the female connector 30 is quickly and detachably connected to the end of the gun rod body 10 where the male connector 20 is provided.

[0048] In some embodiments, the rock breaking and drilling head 40 includes a first equal diameter section 401, a tapered section 402 and a second equal diameter section 403 arranged in sequence, the conical tip 41 is arranged on the first equal diameter section 401, the second equal diameter section 403 is used to connect with the gun stick body 10 through the quick connector, and the outer diameter of the tapered section 402 gradually decreases from the first equal diameter section 401 in a direction toward the second equal diameter section 403.

[0049] It should be noted that, in the present invention, in order to ensure that the rock breaking borehole head 40 has a certain structural strength, it is preferred that the rock breaking borehole head 40 is made entirely of stainless steel.

[0050] In some embodiments, the total length of the rock breaking borehole head 40 is 330 mm, of which the length of the conical tip 41 is 100 mm, and the length of the second equal diameter section 403 is 80 mm; the outer diameter of the rock breaking borehole head 40 is 63 mm, the inner diameter is 53 mm, and after the tapered section 402, the outer diameter is 45 mm.

[0051] It can be understood that the blasting stick assembly provided by the utility model can realize the combination of blasting hole detection and charging functions. During the hole detection operation, a rock breaking hole detection head 40 is installed at the end of the blasting stick body 10. During the charging operation, the rock breaking hole detection head 40 is removed and only the blasting stick body 10 is used for charging operation.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A blasting rod assembly for deep hole blasting, characterized in that: The gun stick assembly comprises a gun stick body (10), wherein the gun stick body (10) comprises a plurality of connecting rods (11) connected end to end in sequence, and the ends of two adjacent connecting rods (11) are detachably connected via a quick connector, wherein the quick connector comprises a male connector (20) and a female connector (30); The male connector (20) comprises a first connecting seat (21), one end of the first connecting seat (21) is fixedly connected to the end of the connecting rod (11), the other end of the first connecting seat (21) is provided with two clamping plates (22) arranged at intervals along its circumference, the ends of the two clamping plates (22) away from the first connecting seat (21) are respectively provided with clamping claws (23) extending towards each other, and the ends of the two clamping plates (22) provided with the clamping claws (23) are arranged to be able to elastically open outwards; The female connector (30) comprises a second connecting seat (31), one end of the second connecting seat (31) is fixedly connected to the end of the connecting rod (11), and the other end of the second connecting seat (31) is provided with a clamping groove (32) for the clamping claws (23) on the two clamping plates (22) to clamp into.

2. The blasting rod assembly for deep hole blasting according to claim 1, characterized in that: The two clamping plates (22) are rotatably connected to the first connecting seat (21) via latches (24), and a spring (25) is provided between the ends of the two clamping plates (22) away from the clamping claws (23), and the spring (25) is used to drive the clamping claws (23) on the two clamping plates (22) to approach each other.

3. The blasting rod assembly for deep hole blasting according to claim 1, characterized in that: The outer end of the claw (23) is formed as a first inclined surface (231) extending inwardly and toward the inner end; and / or The outer side of the clamping groove (32) is formed with two symmetrically arranged second inclined surfaces (321) extending outward and inward.

4. The blasting rod assembly for deep hole blasting according to claim 2, characterized in that: A limit block (26) is provided on the first connection seat (21) between the latch pin (24) and the clamping claw (23), and the limit block (26) is used to stop the clamping plate (22) so that a distance is formed between the two clamping claws (23).

5. The blasting rod assembly for deep hole blasting according to claim 1, characterized in that: The inner groove wall (322) of the clamping groove (32) is arranged in an arc shape concave toward the second connecting seat (31), the outer ends of the two clamping plates (22) are arranged in an arc shape capable of matching with the inner groove wall (322) of the clamping groove (32) so as to allow the male connector (20) to rotate relative to the female connector (30), and a splitting tip (33) is arranged on the outer groove wall (323) of the clamping groove (32), and the splitting tip (33) is used to open the two clamping claws (23) to make them disengage from the clamping groove (32) when the male connector (20) rotates relative to the female connector (30).

6. The blasting rod assembly for deep hole blasting according to claim 1, characterized in that: Both ends of the connecting rod (11) are respectively threadedly connected to the male connector (20) or the female connector (30).

7. The blasting rod assembly for deep hole blasting according to claim 1, characterized in that: The connecting rod (11) is in the shape of a hollow tube.

8. The blasting rod assembly for deep hole blasting according to any one of claims 1 to 7, characterized in that: The end of the blasting rod body (10) inserted into the blasting hole is provided with a rock breaking hole probe head (40), the rock breaking hole probe head (40) is configured as a hollow tube and is arranged coaxially with the blasting rod body (10), and the end of the rock breaking hole probe head (40) away from the blasting rod body (10) is provided with a conical tip (41).

9. The blasting rod assembly for deep hole blasting according to claim 8, characterized in that: The rock breaking and drilling head (40) is detachably connected to the blasting rod body (10) via the quick connecting piece.

10. The blasting rod assembly for deep hole blasting according to claim 8, characterized in that: The rock breaking and drilling head (40) comprises a first equal diameter section (401), a tapered section (402) and a second equal diameter section (403) which are arranged in sequence, the conical tip (41) is arranged on the first equal diameter section (401), the second equal diameter section (403) is used to be connected to the gun rod body (10) through the quick connector, and the outer diameter of the tapered section (402) gradually decreases from the first equal diameter section (401) in a direction toward the second equal diameter section (403).

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