Novel mine blasting hole positioning equipment for mine engineering

Abstract

The invention relates to the technical field of mine engineering, and discloses novel mine blasting hole positioning equipment for mine engineering, which comprises a middle sleeve assembly, a front sleeve assembly is arranged on the left side of the inner wall of the middle sleeve assembly, a rear sleeve assembly is arranged on the right side of the outer wall of the middle sleeve assembly, and a sample punching assembly is arranged on the left side of the inner wall of the front sleeve assembly. The middle sleeve assembly and the movable ejector rod assembly are arranged, and a thin iron ejector rod on the movable ejector rod assembly is magnetically attracted and limited through a magnetic ring on the middle sleeve assembly, so that it is ensured that the movable ejector rod assembly makes contact with the left side wall face of the heavy punch assembly and cannot be inserted into the inner wall of the heavy punch assembly to be located in the slot hole when pressure is not applied; the situation that when pressed, a thin iron ejector rod on the movable ejector rod assembly cannot make contact with the left side wall face of the heavy punch assembly, but is directly inserted into the inner wall of the heavy punch assembly to be located in the slot hole, elastic force cannot be stored, and effective punching positioning cannot be achieved is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mining engineering, and in particular to a novel mining blasting blasthole positioning device for mining engineering. Background Art

[0002] Mine blasting is a key technology in the mining process. It uses the huge energy released by explosives in an instant to generate high-temperature, high-pressure and high-speed shock waves in the medium around the explosives, thereby destroying the structure of the rock or ore, breaking it and loosening it to facilitate subsequent excavation, transportation and other operations. In mine blasting, it is necessary to locate the blasthole in advance, so a blasthole positioning device is used. The blasthole positioning device is generally composed of a shell, a sample punch, a spring, a movable ejector rod and a heavy hammer. The movable ejector rod is used for instant correction, and the heavy hammer is suddenly released to hit the sample punch to locate the punch hole.

[0003] However, in the existing blasthole positioning equipment, the movable push rod is easily inserted into the socket of the heavy hammer during the punching positioning, and the heavy hammer cannot be released suddenly. As a result, the impact force of the entire blasthole positioning equipment is not strong enough to leave effective punching positioning marks. Multiple attempts are required, which is time-consuming and labor-intensive as a whole, reducing the efficiency of mine blasting blasthole positioning.

[0004] Therefore, we propose a new type of mine blasting hole positioning equipment for mining engineering. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a novel mine blasting blasthole positioning device for mine engineering.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a novel mine blasting hole positioning device for mining engineering, comprising a middle sleeve component, a front sleeve component is arranged on the left side of the inner wall of the middle sleeve component, a rear sleeve component is arranged on the right side of the outer wall of the middle sleeve component, a sample punch component is arranged on the left side of the inner wall of the front sleeve component, a first compression spring is arranged on the right side of the inner wall of the front sleeve component, a movable push rod component is arranged on the left side wall of the first compression spring, and the outer wall of the movable push rod component is movably connected to the inner wall of the front sleeve component, a heavy hammer component is arranged at the middle end of the inner wall of the middle sleeve component, a second compression spring is fixedly installed on the right side wall of the heavy hammer component, and the right side wall of the second compression spring is movably connected to the right side of the inner wall of the rear sleeve component, and the middle sleeve component comprises a middle sleeve body, and the left side wall of the middle sleeve body is provided with a The first mounting hole, the front sleeve assembly includes a front sleeve body, a movable hole is opened on the left side wall of the front sleeve body, the rear sleeve assembly includes a rear sleeve body, and a third mounting hole is opened on the left side wall of the rear sleeve body, the sample punch assembly includes a sample punch, and the outer wall of the sample punch is movably connected to the inner wall of the front sleeve body at the movable hole, the movable push rod assembly includes a second limit block, and the outer wall of the second limit block is movably connected to the inner wall of the front sleeve body at the second mounting hole, the left side wall of the second limit block is movably connected to the right side wall of the first limit block, the outer side of the right side wall of the second limit block is fixedly connected to the left side wall of the first compression spring, the weight assembly includes a weight block, and the outer wall of the weight block is movably connected to the inner wall of the middle sleeve body, and the left side wall of the weight block is movably contacted with the right side wall of the thin iron push rod.

[0007] Preferably, a magnetic ring is fixedly installed on the inner wall of the middle sleeve body at the first mounting hole, and the left wall of the magnetic ring is movably connected to the right wall of the first compression spring, a first internal thread is provided on the left side of the inner wall of the middle sleeve body at the first mounting hole, and a first external thread is provided on the right side of the outer wall of the middle sleeve body.

[0008] Preferably, a second mounting hole is opened on the right side wall of the front sleeve body, a second external thread is arranged on the right side of the outer wall of the front sleeve body, and the outer wall of the front sleeve body is threadedly connected at the second external thread with the inner wall of the middle sleeve body at the first internal thread.

[0009] Preferably, a second internal thread is provided on the right side of the inner wall of the rear sleeve body at the third mounting hole, and the inner wall of the rear sleeve body at the second internal thread is threadedly connected to the outer wall of the front sleeve body at the second external thread.

[0010] Preferably, a first limit block is fixedly mounted on the right side wall of the sample punch, and an outer wall of the first limit block is movably connected to an inner wall of the front sleeve body at the second mounting hole.

[0011] Preferably, a thick push rod is fixedly mounted on the right side wall of the second limit block, and the outer wall of the thick push rod is movably connected to the inner wall of the magnetic ring.

[0012] Preferably, a slot hole is provided at the middle end of the left side wall of the weight block, and the inner wall of the weight block is located at the slot hole and is in active contact with the outer wall of the thin iron push rod.

[0013] Preferably, a return cone block is fixedly mounted on the right side wall of the thick push rod, and the outer wall of the return cone block is movably connected to the inner wall of the magnetic ring.

[0014] Preferably, a thin iron push rod is fixedly mounted on the right side wall of the return cone block, and the outer wall of the thin iron push rod is in active contact with the left side wall and the inner wall of the heavy hammer assembly respectively, and the outer wall of the thin iron push rod is magnetically connected to the inner wall of the magnetic ring.

[0015] The present invention provides a new type of mine blasting hole positioning equipment for mining engineering. It has the following beneficial effects:

[0016] 1. A novel mine blasting hole positioning device for mining engineering, by setting a middle sleeve assembly and a movable push rod assembly, the magnetic ring on the middle sleeve assembly is used to magnetically limit the thin iron push rod on the movable push rod assembly, thereby ensuring that the movable push rod assembly contacts the left wall surface of the heavy hammer assembly when no pressure is applied and does not insert into the inner wall of the heavy hammer assembly and is located at the slot hole, so that the heavy hammer assembly can accumulate sufficient elastic force through the first compression spring and the second compression spring. When the return cone block on the movable push rod assembly continues to move until it contacts the inner wall of the magnetic ring, the entire movable push rod assembly is returned to the center, the thin iron push rod on the movable push rod assembly is inserted into the inner wall of the heavy hammer assembly and is located at the slot hole, thereby suddenly releasing the heavy hammer assembly, and the heavy hammer assembly is subjected to the dual elastic forces of the first compression spring and the second compression spring, and drives the sample punch assembly to impact outward through the movable push rod assembly to complete a punching eye positioning, thereby avoiding the situation that the thin iron push rod on the movable push rod assembly cannot contact the left wall surface of the heavy hammer assembly when pressed, but is directly inserted into the inner wall of the heavy hammer assembly and is located at the slot hole, resulting in the inability to store elastic force and the inability to effectively punch the eye positioning.

[0017] 2. This new type of mine blasting hole positioning equipment for mining engineering is equipped with a middle sleeve component, a front sleeve component and a rear sleeve component. The middle sleeve component, the front sleeve component and the rear sleeve component are connected together by threads, so that the whole device is very convenient to assemble and disassemble. Even if some internal parts are damaged, they can be quickly replaced, which improves the use effect of the whole device.

[0018] 3. This new type of mine blasting hole positioning equipment for mining engineering is equipped with a sample punch assembly. The first limit block on the sample punch assembly can limit the sample punch assembly, so that the entire sample punch assembly can only be taken out from the inner wall of the front sleeve assembly at the second mounting hole but cannot be taken out from the inner wall of the front sleeve assembly at the movable hole, thereby not affecting the activity of the sample punch on the sample punch assembly extending out of the left wall of the front sleeve assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the internal overall structure of the present invention;

[0020] Figure 2 It is a perspective view of the internal structure of the middle set component of the present invention;

[0021] Figure 3 A perspective view of the internal structure of the front cover assembly of the present invention;

[0022] Figure 4 A perspective view of the internal structure of the rear cover assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the front structure of the sample punch assembly of the present invention;

[0024] Figure 6 It is a front structural schematic diagram of the movable push rod assembly of the present invention;

[0025] Figure 7 It is a perspective view of the internal structure of the weight hammer assembly of the present invention.

[0026] Legend: 10. Middle sleeve assembly; 11. Front sleeve assembly; 12. Back sleeve assembly; 13. Sample punch assembly; 14. First compression spring; 15. Movable ejector rod assembly; 16. Weight assembly; 17. Second compression spring; 18. Middle sleeve body; 19. First mounting hole; 20. Magnetic ring; 21. First internal thread; 22. First external thread; 23. Front sleeve body; 24. Movable hole; 25. Second mounting hole; 26. Second external thread; 27. Back sleeve body; 28. Third mounting hole; 29. ​​Second internal thread; 30. Sample punch; 31. First limit block; 32. Second limit block; 33. Thick ejector rod; 34. Return cone block; 35. Thin iron ejector rod; 36. Weight block; 37. Slot hole. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", "side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: A new type of mine blasting hole positioning equipment for mining engineering, such as Figure 1As shown, it includes a middle sleeve component 10, a front sleeve component 11 is arranged on the left side of the inner wall of the middle sleeve component 10, a rear sleeve component 12 is arranged on the right side of the outer wall of the middle sleeve component 10, a sample punch component 13 is arranged on the left side of the inner wall of the front sleeve component 11, a first compression spring 14 is arranged on the right side of the inner wall of the front sleeve component 11, a movable push rod component 15 is arranged on the left wall of the first compression spring 14, and the outer wall of the movable push rod component 15 is movably connected with the inner wall of the front sleeve component 11, a heavy hammer component 16 is arranged at the middle end of the inner wall of the middle sleeve component 10, a second compression spring 17 is fixedly installed on the right side wall of the heavy hammer component 16, and the right side wall of the second compression spring 17 is movably connected with the right side of the inner wall of the rear sleeve component 12, by setting the middle sleeve component 10 and the movable push rod component 15, the thin iron push rod 35 on the movable push rod component 15 is magnetically limited by the magnetic ring 20 on the middle sleeve component 10, so as to ensure that the movable push rod component 15 is in contact with the heavy hammer component 16 when no pressure is applied. The left side wall is in contact with the inner wall of the weight hammer assembly 16 and is not inserted into the slot hole 37, so that the weight hammer assembly 16 can accumulate sufficient elastic force through the first compression spring 14 and the second compression spring 17. When the return cone block 34 on the movable push rod assembly 15 continues to move until it contacts the inner wall of the magnetic ring 20, the entire movable push rod assembly 15 is returned to the center, and the thin iron push rod 35 on the movable push rod assembly 15 is inserted into the inner wall of the weight hammer assembly 16 and is located at the slot hole 37, thereby suddenly releasing the weight hammer assembly 16. The weight hammer assembly 16 is subjected to the dual elastic forces of the first compression spring 14 and the second compression spring 17 and drives the sample punch assembly 13 to impact outward through the movable push rod assembly 15 to complete a punching eye positioning, thereby avoiding the situation that the thin iron push rod 35 on the movable push rod assembly 15 cannot contact the left side wall of the weight hammer assembly 16 when pressed, but is directly inserted into the inner wall of the weight hammer assembly 16 and is located at the slot hole 37, resulting in the inability to store elastic force and the inability to effectively punch the eye positioning.

[0034] Embodiment 2: Based on Embodiment 1, Figure 2 As shown, the middle sleeve component 10 includes a middle sleeve body 18, a first mounting hole 19 is opened on the left side wall of the middle sleeve body 18, a magnetic ring 20 is fixedly installed on the inner wall of the middle sleeve body 18 at the first mounting hole 19, and the left side wall of the magnetic ring 20 is movably connected to the right side wall of the first compression spring 14, a first internal thread 21 is provided on the left side of the inner wall of the middle sleeve body 18 at the first mounting hole 19, and a first external thread 22 is provided on the right side of the outer wall of the middle sleeve body 18. By setting the middle sleeve component 10, the front sleeve component 11 and the rear sleeve component 12, the middle sleeve component 10, the front sleeve component 11 and the rear sleeve component 12 are connected together by threads, so that the whole device is very convenient to assemble and disassemble, and even if some internal parts are damaged, they can be quickly replaced, thereby improving the use effect of the whole device.

[0035] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the front sleeve assembly 11 includes a front sleeve body 23, a movable hole 24 is opened on the left side wall of the front sleeve body 23, a second mounting hole 25 is opened on the right side wall of the front sleeve body 23, and a second external thread 26 is arranged on the right side of the outer wall of the front sleeve body 23, and the outer wall of the front sleeve body 23 is located at the second external thread 26 and is threadedly connected with the inner wall of the middle sleeve body 18 at the first internal thread 21. By setting the sample punch assembly 13, the first limit block 31 on the sample punch assembly 13 can limit the sample punch assembly 13, so that the entire sample punch assembly 13 can only be taken out from the inner wall of the front sleeve assembly 11 at the second mounting hole 25 but cannot be taken out from the inner wall of the front sleeve assembly 11 at the movable hole 24, thereby not affecting the activity of the sample punch 30 on the sample punch assembly 13 extending out of the left side wall of the front sleeve assembly 11.

[0036] Embodiment 4: Based on Embodiment 1, Embodiment 2 and Embodiment 3, Figure 4-Figure 5 As shown, the rear sleeve assembly 12 includes a rear sleeve body 27, a third mounting hole 28 is opened on the left side wall of the rear sleeve body 27, a second internal thread 29 is provided on the right side of the inner wall of the rear sleeve body 27 at the third mounting hole 28, and the inner wall of the rear sleeve body 27 is threadedly connected with the outer wall of the front sleeve body 23 at the second external thread 26 at the second internal thread 29, the sample punch assembly 13 includes a sample punch 30, and the outer wall of the sample punch 30 is movably connected with the inner wall of the front sleeve body 23 at the movable hole 24, and a first limit block 31 is fixedly installed on the right side wall of the sample punch 30, and the outer wall of the first limit block 31 is movably connected with the inner wall of the front sleeve body 23 at the second mounting hole 25.

[0037] Embodiment 5: Based on Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4, Figure 6-Figure 7As shown, the movable push rod assembly 15 includes a second limit block 32, and the outer wall of the second limit block 32 is movably connected to the inner wall of the front sleeve body 23 at the second mounting hole 25, the left side wall of the second limit block 32 is movably connected to the right side wall of the first limit block 31, the outer side of the right side wall of the second limit block 32 is fixedly connected to the left side wall of the first compression spring 14, a thick push rod 33 is fixedly installed on the right side wall of the second limit block 32, and the outer wall of the thick push rod 33 is movably connected to the inner wall of the magnetic ring 20, a return cone block 34 is fixedly installed on the right side wall of the thick push rod 33, and the outer wall of the return cone block 34 is movably connected to the inner wall of the magnetic ring 20, and the return cone A thin iron push rod 35 is fixedly installed on the right side wall of block 34, and the outer wall of the thin iron push rod 35 is movably contacted with the left side wall and inner wall of the weight assembly 16 respectively, the outer wall of the thin iron push rod 35 is magnetically connected to the inner wall of the magnetic ring 20, the outer wall of the thin iron push rod 35 is magnetically connected to the inner wall of the magnetic ring 20, the weight assembly 16 includes a weight block 36, and the outer wall of the weight block 36 is movably connected to the inner wall of the middle sleeve body 18, the left side wall of the weight block 36 is movably contacted with the right side wall of the thin iron push rod 35, a slot hole 37 is opened in the middle end of the left side wall of the weight block 36, and the inner wall of the weight block 36 is located at the slot hole 37 and is movably contacted with the outer wall of the thin iron push rod 35.

[0038] The working principle of the present invention is as follows: by holding the device and pressing it at the place where the eyelet needs to be punched and positioned, the sample punch assembly 13 on the movable push rod assembly 15 compresses the first compression spring 14 through the movable push rod assembly 15, and the thin iron push rod 35 on the movable push rod assembly 15 is affected by the magnetic force and is magnetically attracted to the inner wall of the magnetic ring 20, so that the right wall surface of the movable push rod assembly 15 contacts the left wall surface of the heavy hammer assembly 16, and the movable push rod assembly 15 compresses the second compression spring 17 by squeezing the heavy hammer assembly 16. When the return cone block 34 on the movable push rod assembly 15 moves to the inner wall of the magnetic ring 20, the thin iron push rod 35 is separated from the inner wall of the magnetic ring 20, so that the entire movable push rod assembly 15 is returned to the center, and the outer wall of the thin iron push rod 35 is inserted into the inner wall slot hole 37 of the heavy hammer assembly 16, and the heavy hammer assembly 16 is suddenly released through the second compression spring 17. The heavy hammer assembly 16 drives the sample punch assembly 13 to impact outward through the movable push rod assembly 15, so that the sample punch assembly 13 is punched and positioned.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A novel mine blasting hole positioning device for mining engineering, comprising a middle set component (10), characterized in that: The front sleeve assembly (11) is arranged on the left side of the inner wall of the middle sleeve assembly (10), the rear sleeve assembly (12) is arranged on the right side of the outer wall of the middle sleeve assembly (10), the sample punch assembly (13) is arranged on the left side of the inner wall of the front sleeve assembly (11), the first compression spring (14) is arranged on the right side of the inner wall of the front sleeve assembly (11), and the left wall surface of the first compression spring (14) is arranged on the movable push rod assembly (15), and the outer wall of the movable push rod assembly (15) is movably connected to the inner wall of the front sleeve assembly (11), and the middle sleeve assembly (10) is provided with a front sleeve assembly (11) and a rear sleeve assembly (12) on the right side of the outer wall of the middle sleeve assembly (10). A weight assembly (16) is arranged at the middle end of the inner wall of the sleeve assembly (10), a second compression spring (17) is fixedly installed on the right side wall of the weight assembly (16), and the right side wall of the second compression spring (17) is movably connected to the right side of the inner wall of the rear sleeve assembly (12), the middle sleeve assembly (10) includes a middle sleeve body (18), a first mounting hole (19) is opened on the left side wall of the middle sleeve body (18), and the front sleeve assembly (11) includes a front sleeve body (23), and the left side of the front sleeve body (23) is The wall surface is provided with an active hole (24), the rear sleeve assembly (12) includes a rear sleeve body (27), the left wall surface of the rear sleeve body (27) is provided with a third mounting hole (28), the sample punch assembly (13) includes a sample punch (30), and the outer wall of the sample punch (30) is movably connected to the inner wall of the front sleeve body (23) at the active hole (24), and the movable push rod assembly (15) includes a second limit block (32), and the outer wall of the second limit block (32) is movably connected to the inner wall of the front sleeve body (23). The second limit block (32) is movably connected at the second mounting hole (25), the left wall surface of the second limit block (32) is movably connected to the right wall surface of the first limit block (31), the outer side of the right wall surface of the second limit block (32) is fixedly connected to the left wall surface of the first compression spring (14), the weight assembly (16) includes a weight block (36), and the outer wall of the weight block (36) is movably connected to the inner wall of the middle sleeve body (18), and the left wall surface of the weight block (36) is movably contacted with the right wall surface of the thin iron push rod (35).

2. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A magnetic ring (20) is fixedly mounted on the inner wall of the middle sleeve body (18) at the first mounting hole (19), and the left wall surface of the magnetic ring (20) is movably connected to the right wall surface of the first compression spring (14). A first internal thread (21) is arranged on the left side of the inner wall of the middle sleeve body (18) at the first mounting hole (19), and a first external thread (22) is arranged on the right side of the outer wall of the middle sleeve body (18).

3. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A second mounting hole (25) is provided on the right side wall of the front sleeve body (23), a second external thread (26) is provided on the right side of the outer wall of the front sleeve body (23), and the outer wall of the front sleeve body (23) is threadedly connected at the second external thread (26) to the inner wall of the middle sleeve body (18) at the first internal thread (21).

4. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A second internal thread (29) is provided on the right side of the inner wall of the rear sleeve body (27) at the third mounting hole (28), and the inner wall of the rear sleeve body (27) at the second internal thread (29) is threadedly connected to the outer wall of the front sleeve body (23) at the second external thread (26).

5. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A first limiting block (31) is fixedly mounted on the right side wall of the sample punch (30), and an outer wall of the first limiting block (31) is movably connected to an inner wall of the front sleeve body (23) at the second mounting hole (25).

6. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A thick push rod (33) is fixedly mounted on the right side wall of the second limit block (32), and the outer wall of the thick push rod (33) is movably connected to the inner wall of the magnetic ring (20).

7. The novel mine blasting hole positioning device for mine engineering according to claim 1 is characterized by: A slot hole (37) is provided at the middle end of the left wall of the weight block (36), and the inner wall of the weight block (36) is located at the slot hole (37) and is in active contact with the outer wall of the thin iron push rod (35).

8. The novel mine blasting hole positioning device for mine engineering according to claim 6 is characterized by: A return cone block (34) is fixedly mounted on the right side wall of the thick push rod (33), and the outer wall of the return cone block (34) is movably connected to the inner wall of the magnetic ring (20).

9. The novel mine blasting hole positioning device for mine engineering according to claim 8 is characterized by: A thin iron push rod (35) is fixedly mounted on the right side wall of the return cone block (34), and the outer wall of the thin iron push rod (35) is in active contact with the left side wall and the inner wall of the weight hammer assembly (16).

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