Blasting device for removing mountain dangerous rock

Abstract

The utility model belongs to the technical field of mountain dangerous rock removing equipment, and provides a blasting device for removing mountain dangerous rock, which comprises a rotor unmanned aerial vehicle, a warhead, a shaped charge liner and a support, and the warhead is connected with the rotor unmanned aerial vehicle through a connecting rope; the shaped charge liner is arranged at the bottom of the warhead, the shaped charge liner is made of an amorphous alloy material, specifically, the shaped charge liner is made of a tungsten framework zirconium-based amorphous alloy material, the support is arranged on the warhead and used for supporting the bottom of the warhead, the support comprises a connecting ring and supporting legs, and the connecting ring is fixedly arranged on the outer side of the warhead in a sleeving mode; the multiple supporting legs are arranged on the outer side of the connecting ring in a surrounding mode, the tops of the supporting legs are fixedly connected with the connecting ring, and the bottoms of the supporting legs extend downwards and are obliquely arranged in the direction away from the warhead. By means of the technical scheme, the problems that in a traditional blasting mode, potential safety hazards are faced by operators, and personnel and equipment are difficult to approach can be effectively solved, and the blasting effect of the warhead can be effectively improved through secondary blasting caused by the amorphous alloy material.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment for removing dangerous rocks in mountains, specifically a blasting device for removing dangerous rocks in mountains. Background Technology

[0002] In mountainous areas, the presence of unstable rock formations poses a serious threat to the safety of roads, buildings, and pedestrians. A rockfall could result in significant casualties and property damage. Currently, the removal of unstable rock formations typically involves manual climbing or traditional blasting. Manual climbing is extremely dangerous, as workers on steep slopes are prone to falls. Traditional blasting methods struggle to deliver explosives and equipment to the rock formation, and due to terrain limitations, the equipment cannot be stably placed on the surface. Furthermore, traditional blasting methods suffer from insufficient blasting force, failing to completely remove the unstable rock. Therefore, there is an urgent need for a device that can be stably positioned and efficiently removed from unstable rock formations. Utility Model Content

[0003] The purpose of this invention is to provide a blasting device for clearing dangerous rocks in mountains, so as to solve the problem that traditional blasting methods are difficult to deliver blasting agents and devices to the location of dangerous rocks and have poor blasting force.

[0004] This utility model is implemented as follows:

[0005] A blasting device for clearing dangerous rocks from a mountainside, comprising:

[0006] Rotary-wing drones;

[0007] The warhead is connected to the rotary-wing UAV via a connecting rope.

[0008] A propellant liner is disposed at the bottom of the warhead, and the propellant liner is made of amorphous alloy material;

[0009] A support bracket is disposed on the warhead and is used to support the warhead.

[0010] As a further technical solution, the bracket includes:

[0011] A connecting ring, which is fixedly sleeved on the outside of the warhead;

[0012] Support legs, of which there are multiple, are arranged around the outside of the connecting ring. The top of the support leg is fixedly connected to the connecting ring, the bottom extends downward and is inclined away from the warhead.

[0013] As a further technical solution, the sidewall of the connecting ring is provided with a plurality of first mounting holes, and the top of the support leg is provided with a second mounting hole, the second mounting hole coinciding with the first mounting hole and being locked by a first bolt.

[0014] As a further technical solution, each of the support legs has two second mounting holes at its top, and the connecting ring has two first mounting holes that overlap with the two second mounting holes respectively. The first bolt is inserted into both the two second mounting holes and the first mounting holes.

[0015] As a further technical solution, the connecting ring includes two semi-circular mounting plates connected end to end. Each end of the semi-circular mounting plate is fixedly provided with a connecting lug. A third mounting hole is opened on the connecting lug. A second bolt is inserted into the third mounting hole on two adjacent connecting lugs and locked with a nut.

[0016] As a further technical solution, the shaped charge liner is made of tungsten-framed zirconium-based amorphous alloy.

[0017] As a further technical solution, the warhead includes:

[0018] The cylindrical body, wherein the shaped charge is disposed at the bottom of the cylindrical body;

[0019] A cover is placed on top of the cylinder, and one end of the connecting rope is connected to the cover.

[0020] As a further technical solution, the cover includes:

[0021] A cover plate is placed on top of the cylinder, and one end of the connecting rope is connected to the cover plate;

[0022] An installation ring is inserted into the interior of the cylinder. An annular groove is formed on the outer side wall of the installation ring. A plurality of fourth installation holes are formed on the side wall of the cylinder. A third bolt is inserted into the fourth installation hole, and the end of the third bolt is engaged in the annular groove.

[0023] As a further technical solution, a fifth mounting hole is provided in the middle of the cover plate, a connecting part is provided above the fifth mounting hole, a through hole is provided on the connecting part for the connecting rope to pass through, a fourth bolt is inserted in the fifth mounting hole, and the fourth bolt is fixedly inserted into the connecting part.

[0024] As a further technical solution, a fixing ring is fixedly provided on the inner side of the bottom of the cylinder, and the bottom of the shaped charge abuts against the top surface of the fixing ring.

[0025] The beneficial effects of this utility model are:

[0026] 1. Using rotary-wing drones as a transport vehicle, blasting devices can be accurately deployed to the location of dangerous rocks on the mountain, avoiding the danger of manual climbing, while also improving the accuracy of blasting. Specific dangerous rocks can be cleared, reducing unnecessary damage to the surrounding environment.

[0027] 2. The uniquely designed support structure, through connecting rings and multiple inclined support legs, can adapt to different mountain terrains, ensuring the warhead remains stable before detonation and improving the reliability and safety of the explosive device. Simultaneously, the connecting rings on the support are adjustable, allowing for continuous adjustment of the distance between the lower end of the warhead and the ground.

[0028] 3. In addition, the shaped charge liner is made of amorphous alloy material, which not only generates a strong energy-gathering effect, but also, thanks to its secondary explosion characteristics, detonates again inside the dangerous rock after the jet penetrates it, achieving deep fragmentation of the dangerous rock and greatly improving the efficiency of dangerous rock removal compared to traditional methods. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a three-dimensional structural diagram of the warhead and support of this utility model;

[0031] Figure 3 This is a cross-sectional structural diagram of the warhead and support of this utility model;

[0032] Figure 4 This is a three-dimensional structural diagram of the cover of this utility model.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Rotary-wing UAV; 2. Warhead; 21. Cylinder; 22. Cover; 221. Cover plate; 222. Mounting ring; 223. Annular groove; 3. Connecting rope; 4. Molten charge liner; 5. Bracket; 51. Connecting ring; 511. Semi-annular mounting plate; 512. Connecting lug; 52. Support leg; 6. First bolt; 7. Second bolt; 8. Third bolt; 9. Connecting part; 10. Through hole; 11. Fourth bolt; 12. Fixing ring; 13. Fifth bolt; 14. Delay start circuit; 15. Detonator. Detailed Implementation

[0035] like Figures 1-4 As shown, this utility model provides a blasting device for clearing dangerous rocks from mountains, which mainly includes a rotary-wing drone 1, a warhead 2, a shaped charge shroud 4, and a support 5.

[0036] like Figure 1As shown, the rotary-wing drone 1 serves as a carrier, capable of precisely transporting the entire demolition device to the location of the unstable rock face. In this invention, the rotary-wing drone 1 is equipped with an airdrop device, on which a connecting rope 3 is fitted. The lower end of the connecting rope 3 is connected to the warhead 2. When the rotary-wing drone 1 drags the warhead 2 to the appropriate position via the connecting rope 3, the airdrop device activates, detaching the connecting rope 3 from the rotary-wing drone 1, thus leaving the warhead 2 on the unstable rock face to be cleared. The structure and operation of the airdrop device in this invention are existing technologies; for details, please refer to the utility model patent with authorization announcement number CN219154740U.

[0037] like Figure 2 and Figure 4 As shown, the warhead 2 includes a cylindrical body 21 and a cover 22. The cover 22 covers the top of the cylindrical body 21. The cylindrical body 21 is used to contain explosive agents, etc. The cover 22 includes a cover plate 221 and a mounting ring 222. The cover plate 221 covers the top of the cylindrical body 21. The mounting ring 222 passes through the inside of the cylindrical body 21, and the outer diameter of the mounting ring 222 is equal to the inner diameter of the cylindrical body 21. An annular groove 223 is formed on the outer side wall of the mounting ring 222. A plurality of fourth mounting holes are formed on the side wall of the cylindrical body 21. A third bolt 8 passes through the fourth mounting hole. The end of the third bolt 8 is engaged in the annular groove 223. This structure allows the cover 22 and the cylindrical body 21 to be tightly connected, ensuring the sealing of the warhead 2 and preventing the leakage of explosive agents. A fifth mounting hole is provided in the middle of the cover plate 221. A connecting part 9 is provided above the fifth mounting hole. A through hole 10 is provided on the connecting part 9 for one end of the connecting rope 3 to pass through. A fourth bolt 11 is inserted into the fifth mounting hole. The fourth bolt 11 is fixedly inserted into the connecting part 9, so that the connecting rope 3 can be firmly connected to the cover plate 221, ensuring that the rotorcraft UAV 1 will not fall off during the hoisting of the warhead 2. The fourth bolt 11 and the connecting part 9 can be connected by thread or interference fit.

[0038] like Figure 2 and Figure 3As shown, the bracket 5 is used to support the bottom of the warhead 2, ensuring that the warhead 2 is in a stable state before detonation and improving the accuracy of the detonation. Specifically, the bracket 5 includes a connecting ring 51 and a support leg 52. The connecting ring 51 is fixedly sleeved on the outside of the warhead 2. The connecting ring 51 includes two semi-annular mounting plates 511 connected end to end. Both ends of the semi-annular mounting plates 511 are fixedly provided with connecting ears 512. A third mounting hole is opened on the connecting ears 512. A second bolt 7 is inserted into the third mounting hole on two adjacent connecting ears 512 and locked with a nut, so that the connecting ring 51 can be easily sleeved on the outside of the warhead 2, and the installation and disassembly are convenient. Multiple support legs 52 are arranged around the outside of the connecting ring 51. In this embodiment, there are three support legs 52. The top of each support leg 52 is fixedly connected to the connecting ring 51. Specifically, the sidewall of the connecting ring 51 has multiple first mounting hole groups, each group including two first mounting holes. The top of each support leg 52 has two second mounting holes, which coincide with the two first mounting holes of one of the first mounting hole groups and are locked together by first bolts 6. The connection between the first bolts 6 and the first mounting holes can be threaded or interference fit. This installation method facilitates the installation and disassembly of the support legs 52 and the connecting ring 51, making the transportation and maintenance of the device easier. The two first bolts 6 locking the top of each support leg 52 further improves the firmness of the connection between the support leg 52 and the connecting ring 51, preventing the support leg 52 from shifting. The bottom of the support leg 52 extends downward and is inclined away from the warhead 2, which makes the support 5 have good stability and can better support the warhead 2. When the warhead 2 is placed on a dangerous rock surface, the inclined support leg 52 can adapt to different terrains and ensure the stability of the warhead 2.

[0039] like Figure 2 As shown, a fixing ring 12 is fixedly installed on the inner bottom side of the cylinder 21 by a fifth bolt 13. The bottom of the shaped charge liner 4 abuts against the top surface of the fixing ring 12, which fixes and supports the shaped charge liner 4, ensuring that the shaped charge liner 4 is accurately positioned in the warhead 2. The shaped charge liner 4 is conical and made of amorphous alloy. Specifically, the shaped charge liner 4 is made of tungsten-framed zirconium-based amorphous alloy. Tungsten-framed zirconium-based amorphous alloy has high strength, high hardness, good impact resistance, and unique dynamic mechanical response characteristics. It can not only generate a powerful energy-gathering effect during blasting, but also has the special function of secondary explosion, which greatly improves the blasting effect on clearing dangerous rocks.

[0040] The connecting ring of the support is adjustable in position on the warhead, allowing for continuous adjustment of the distance between the lower end of the warhead and the ground.

[0041] An airdrop device is installed on the rotary-wing UAV 1, and the pin on the airdrop device is inserted into the locking position when closed.

[0042] A wire-passing hole is provided on the cover plate 221, and a delay-start mechanism and a detonation mechanism are arranged below the cover body 22. The delay-start mechanism is a delay-start circuit 14 with a pull-out plug. The wires of the pull-out plug pass through the wire-passing hole, with one end fixed to the pin and the other end fixed in the pin locking position, closing the pin of the airdrop device and putting the pull-out plug in the connected state. When the pull-out plug is disconnected, the delay-start circuit 14 is activated. The delay-start circuit 14 includes a control chip, and the delay time can be defined by the user and is greater than 5 seconds. The detonation mechanism can be a detonator 15. The delay-start mechanism of this utility model is prior art; for details, please refer to the invention patent with publication number CN115682850A.

[0043] The specific operating steps of this utility model are as follows:

[0044] The operator controls the rotorcraft 1 according to the specific location and terrain of the dangerous rock, so that the rotorcraft 1 reaches the appropriate deployment position. When the support legs reach the dangerous rock, the rotorcraft 1 releases the connecting rope 3 through the airdrop device, so that the warhead 2 is separated from the rotorcraft 1 and placed stably on the dangerous rock.

[0045] Subsequently, the blasting operation was carried out. The pin of the airdrop device on the rotorcraft UAV 1 was pulled out using a remote control. At this time, the plug was disconnected, and the control chip started timing. After the timing ended, the control chip triggered the energy storage capacitor to discharge to the detonator 15. The explosive was detonated by the detonator 15 inside the warhead 2 cylinder 21, instantly generating a powerful detonation wave. The detonation wave acted on the Zr-based amorphous alloy liner 4 at extremely high speed. Under enormous pressure, the liner 4 rapidly collapsed and deformed, forming a metal jet with extremely high velocity and energy density. With its powerful penetrating force, this jet penetrated the surface of the dangerous rock like a sharp blade, completing the initial rock breaking. During the jet perforation process, the liner 4 was subjected to an extremely high strain rate, resulting in severe plastic deformation inside. A large number of dislocation movements and lattice distortions caused a sharp increase in internal defects in the material. At the same time, the intense friction generated a large amount of heat energy, causing the local temperature and pressure of the liner 4 to rise sharply. Due to the unique structure of Zr-based amorphous alloys with their long-range disordered atomic arrangement, under the combined effects of high temperature, high pressure, and frictional heat, their internal structure rapidly reaches critical reaction conditions, triggering a secondary explosion reaction. This secondary explosion process is equivalent to a second explosion inside the already formed cavity in the unstable rock, generating a powerful impact and stress wave that spreads outwards, subjecting the surrounding rock to additional destructive forces, causing further rock fragmentation and disintegration, thus achieving deep and efficient removal of the unstable rock.

Claims

1. A blasting device for clearing dangerous rocks from a mountainside, characterized in that, include: Rotary-wing drones; The warhead is connected to the rotary-wing UAV via a connecting rope. A propellant liner is disposed at the bottom of the warhead, and the propellant liner is made of amorphous alloy material; A support bracket is disposed on the warhead and is used to support the warhead.

2. The blasting device for removing dangerous rocks from a mountainside according to claim 1, characterized in that, The support includes: A connecting ring, which is fixedly sleeved on the outside of the warhead; Support legs, of which there are multiple, are arranged around the outside of the connecting ring. The top of the support leg is fixedly connected to the connecting ring, the bottom extends downward and is inclined away from the warhead.

3. The blasting device for removing dangerous rocks from a mountainside according to claim 2, characterized in that, The sidewall of the connecting ring is provided with a plurality of first mounting holes, and the top of the support leg is provided with a second mounting hole. The second mounting hole coincides with the first mounting hole and is locked in place by a first bolt.

4. The blasting device for removing dangerous rocks in a mountainside according to claim 3, characterized in that, Each of the support legs has two second mounting holes at its top, and the connecting ring has two first mounting holes that overlap with the two second mounting holes respectively. The first bolt passes through both the two second mounting holes and the first mounting holes.

5. The blasting device for removing dangerous rocks from a mountainside according to claim 2, characterized in that, The connecting ring includes two semi-circular mounting plates connected end to end. Each end of the semi-circular mounting plate is fixedly provided with a connecting lug. A third mounting hole is opened on the connecting lug. A second bolt is inserted into the third mounting hole on two adjacent connecting lugs and locked with a nut.

6. The blasting device for removing dangerous rocks from a mountainside according to claim 1, characterized in that, The shaped charge liner is made of tungsten-framed zirconium-based amorphous alloy.

7. The blasting device for removing dangerous rocks from a mountainside according to claim 1, characterized in that, The warhead includes: The cylindrical body, wherein the shaped charge is disposed at the bottom of the cylindrical body; A cover is placed on top of the cylinder, and one end of the connecting rope is connected to the cover.

8. The blasting device for removing dangerous rocks in a mountain according to claim 7, characterized in that, The cover includes: A cover plate is placed on top of the cylinder, and one end of the connecting rope is connected to the cover plate; An installation ring is inserted into the interior of the cylinder. An annular groove is formed on the outer side wall of the installation ring. A plurality of fourth installation holes are formed on the side wall of the cylinder. A third bolt is inserted into the fourth installation hole, and the end of the third bolt is engaged in the annular groove.

9. The blasting device for removing dangerous rocks in a mountain according to claim 8, characterized in that, The cover plate has a fifth mounting hole in the middle, and a connecting part is provided above the fifth mounting hole. The connecting part has a through hole for the connecting rope to pass through, and a fourth bolt is inserted into the fifth mounting hole. The fourth bolt is fixedly inserted into the connecting part.

10. The blasting device for removing dangerous rocks from a mountainside according to claim 7, characterized in that, A fixing ring is fixedly installed on the inner bottom side of the cylinder, and the bottom of the shaped charge abuts against the top surface of the fixing ring.

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