An adjustable slotted tube device for shaped charge blasting and method of use

Abstract

The application provides a cutting seam pipe device for adjustable shaped charge blasting and a use method thereof, and relates to the technical field of shaped charge blasting. The device comprises a cutting seam pipe body for loading a charge bag, which is provided with an arc-shaped supporting plate, a plurality of sleeves arranged on the arc-shaped supporting plate, and a plurality of arc-shaped cover plates arranged on the arc-shaped supporting plate. The arc-shaped cover plates are inserted into the sleeves, the sleeves comprise two semicircular rings and two connecting pieces, a gap is left between the arc-shaped supporting plate and the arc-shaped cover plates, and the length of the arc-shaped supporting plate is not less than the length of a single arc-shaped cover plate. An adjustable connecting device is arranged on the sleeve and can adjust the gap between the arc-shaped supporting plate and the arc-shaped cover plates. A plurality of support assemblies are arranged to support the cutting seam pipe body, and the support assemblies are provided with a base and a telescopic frame. One end of the telescopic frame is connected with the sleeve, and the other end is connected with the base. The application can guarantee the blasting effect of the cutting seam pipe body loaded with the charge bag.

Description

Technical Field

[0001] This application relates to the field of shaped charge blasting technology, and in particular to an adjustable shaped charge blasting cutting tube device and its usage method. Background Technology

[0002] In slit-charge blasting technology, the parameters of the slit tube can greatly affect the blasting effect. For example, the thickness, material, slit width, decoupling coefficient of the charge, eccentric decoupling degree of the charge, and slit direction of the slit tube all affect the blasting effect.

[0003] Currently, most controlled blasting techniques used in slope excavation, tunnel excavation and other engineering projects employ eccentric decoupled charges. However, in most projects using eccentric decoupled charges, it is difficult to control the degree of eccentric decoupling and the direction of the cut. In most cases, the charge is made to stick tightly to the borehole wall, which is not conducive to the flatness of the non-cut end profile after detonation and reduces the utilization rate of the explosion energy.

[0004] Furthermore, most slotted pipes currently used in engineering projects are made of PVC round pipes processed in factories, with slots cut into the pipes by machine. This results in uniform wall thickness, material, and slot width for both the upper and lower pipe fittings, which is detrimental to engineering blasting, especially in projects where rock needs to be protected on one side while blasting on the other. It also hinders the protection of rock in the non-slotted direction, leading to serious over- and under-excavation issues. In addition, traditional slotted pipes are not conducive to charging explosives, as improper handling during the charging process may cause the explosive charge to break, affecting the blasting effect. Summary of the Invention

[0005] To address the problem of poor blasting effect caused by the difficulty in adapting the eccentricity and decoupling degree of the explosive charge and the slit width of the slit tube to the blasting requirements, this application provides an adjustable shaped charge blasting slit tube device and its usage method.

[0006] Firstly, this application provides an adjustable shaped charge blasting cutting tube device, which adopts the following technical solution:

[0007] An adjustable shaped charge blasting cutting tube device, comprising:

[0008] The slit tube body is used to load medicine packages. It is equipped with an arc-shaped support plate, multiple collars fitted on the arc-shaped support plate, and several arc-shaped cover plates covering the arc-shaped support plate. The arc-shaped cover plates are inserted into the collars. The collars include two semi-circular rings respectively fitted on the outer peripheral walls of the arc-shaped cover plates and the arc-shaped support plate, and two connectors located on both sides of the semi-circular rings for connecting the two semi-circular rings together. There is a gap between the arc-shaped support plate and the arc-shaped cover plates, and the length of the arc-shaped support plate is not less than the length of a single arc-shaped cover plate.

[0009] An adjustable connecting device is located on the collar and can adjust the gap between the arc-shaped support plate and the arc-shaped cover plate;

[0010] Multiple support components are used to support the cut pipe body. They are equipped with a base and a telescopic frame. One end of the telescopic frame is connected to a collar and the other end is connected to the base.

[0011] Furthermore, the collar has two adjustable connecting devices, which are located on opposite sides of the semicircular ring. Each of the two semicircular rings has a slot on its two end faces that are close to each other. The adjustable connecting device includes two U-shaped plates and an adjusting component for adjusting the distance between the two U-shaped plates. The opening directions of the two U-shaped plates are opposite to each other. One vertical end of the U-shaped plate is connected to the end of the semicircular ring through the slot, and the other vertical end is located inside the semicircular ring and is used to contact the inner wall of the arc-shaped cover plate / arc-shaped support plate. When one vertical end of the U-shaped plate contacts the inner wall of the arc-shaped cover plate / arc-shaped support plate, the other vertical end of the U-shaped plate is not fully inserted into the slot.

[0012] Furthermore, the adjustment assembly includes a screw rod that passes through two U-shaped plates in sequence, a threaded sleeve fixed on the inner wall of one U-shaped plate, and a compression spring located between the two U-shaped plates. One end of the screw rod is threadedly connected to the threaded sleeve, and the other end is provided with an anti-detachment end. The compression spring is sleeved on the screw rod, and both ends of the compression spring abut against the two U-shaped plates respectively. The compression spring is always in a compressed state.

[0013] Furthermore, the U-shaped plate has an anti-slip layer on its vertical end within the semi-circular ring, which is used to contact the inner wall of the arc-shaped cover plate / arc-shaped support plate. The anti-slip layer is located on the inner wall of the U-shaped plate.

[0014] Furthermore, a filling layer is provided on the inner wall of the semi-circular ring.

[0015] Furthermore, the semicircular ring has a through hole, and the telescopic frame includes a rod inserted into the through hole, two telescopic rods located on both sides of the semicircular ring, and a locking device for limiting the extension and retraction of the telescopic rods. One end of the telescopic rod is detachably hinged to the end of the rod and the other end is hinged to the base.

[0016] Furthermore, the base is designed to be arc-shaped, with the concave surface of the arc facing the semicircular ring.

[0017] Furthermore, the semicircular ring has multiple through holes, and these through holes are spaced apart along the circumferential direction of the semicircular ring.

[0018] Furthermore, a support rod is connected between two adjacent bases.

[0019] Secondly, this application provides a method for using an adjustable shaped charge blasting cutting tube device, which, based on the aforementioned adjustable shaped charge blasting cutting tube device, includes the following steps.

[0020] A semi-circular ring is fitted onto each end of the curved support plate;

[0021] Adjust the distance between the two U-shaped plates, then insert one vertical end of the inverted U-shaped plate into the slot of the semi-circular ring, and insert the other vertical end into the arc-shaped support plate and abut against the inner wall of the arc-shaped support plate. At this time, adjustable connecting devices are installed on both sides of the semi-circular ring.

[0022] Place several medicine packets into the curved tray one by one;

[0023] Select an appropriate number of arc-shaped cover plates and place them sequentially on the arc-shaped support plate along its length, ensuring that the two ends of the arc-shaped cover plates are inserted into the two U-shaped plates respectively.

[0024] The other semicircular ring in the collar is fastened to the arc-shaped cover plate, and the groove on the semicircular ring is inserted into the vertical end of the U-shaped plate. The two semicircular rings are connected. At this time, the arc-shaped cover plate and the arc-shaped support plate are fastened together by an adjustable connecting device, and a gap is left between them.

[0025] The ends of the arc-shaped cover plate and arc-shaped support plate are sealed to complete the assembly of the slit tube and the loading of the explosive.

[0026] Adjust the length of the telescopic frame as needed so that the slit tube with explosive charge is placed at a suitable height in the hole to be blasted by the telescopic frame and base.

[0027] The explosive charge is detonated to achieve the blasting treatment of the hole to be blasted.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] 1. An adjustable connecting device can be used to adjust the gap between the arc-shaped support plate and the arc-shaped cover plate as needed, thereby ensuring the blasting effect of the slit tube containing the explosive charge;

[0030] 2. The position of the slotted tube containing the explosive charge within the hole to be blasted can be adjusted using the support components as needed, thereby ensuring the blasting effect of the slotted tube containing the explosive charge.

[0031] 3. The slit-cutting tube device can flexibly change the slit-cutting parameters and be assembled. The assembly operation is simple and convenient, and it can also be pre-processed, which greatly saves processing time and costs. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0034] Figure 2 This is an exploded structural diagram of an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of the structure of the semi-circular ring, U-shaped plate, base and telescopic rod in the embodiments of this application.

[0036] Figure 4 This is an exploded structural diagram of the semicircular ring and U-shaped plate in an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of the structure of the U-shaped plate, screw, and compression spring in the embodiments of this application.

[0038] Figure 6 This is a schematic diagram of the screw and threaded sleeve in the embodiments of this application.

[0039] Figure 7 This is a structural schematic diagram of the base, insert rod, telescopic rod, and locking element in the embodiments of this application.

[0040] Figure 8 This is a structural schematic diagram of the telescopic rod and locking element in the embodiments of this application.

[0041] Reference numerals: 1. Arc-shaped support plate; 2. Arc-shaped cover plate; 3. Semi-circular ring; 4. Slot; 5. Through hole; 6. Filling layer; 7. U-shaped plate; 8. Anti-slip layer; 9. Screw; 10. Threaded sleeve; 11. Compression spring; 12. Anti-detachment end; 13. Base; 14. Support rod; 15. Insert rod; 16. Telescopic rod; 161. Square tube; 162. Square rod; 163. Locking hole; 17. Locking element; 171. Locking rod; 172. Paddle; 18. Plug; 19. Medicine bag; 20. Hexagonal plate; 21. Insertion hole; 22. Circular countersunk groove; 23. Hexagonal countersunk groove; 24. Connecting rod; 25. Cylindrical tube; 26. Embedded groove. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0043] This application discloses an adjustable shaped charge blasting cutting tube device and its usage method. (See also...) Figure 1 , Figure 2 and Figure 3 An adjustable shaped charge blasting cutting tube device includes a cutting tube body for loading explosive charges 19, plugs 18 sealing both ends of the cutting tube body, multiple collars sleeved on the cutting tube body, an adjustable connecting device located on the collars for adjusting the gap size on the cutting tube body, and a support assembly for supporting the cutting tube body. Multiple explosive charges 19 are placed at intervals within the cutting tube body, and multiple collars are respectively sleeved at intervals on the cutting tube body, with the collars located at the ends of the explosive charges 19. This not only ensures the stable storage of the explosive charges 19 within the cutting tube body but also improves the utilization rate of the explosive energy of the explosive charges 19. Furthermore, an appropriate number of cutting tube bodies can be selected according to the depth of the hole to be blasted, and multiple cutting tube bodies can be connected using collars to adapt to holes of different depths. The slotted tube is stably erected in the hole to be blasted by a support assembly, and the gap size on the slotted tube is adjusted by an adjustable connection device, so that the slotted tube with explosive charge 19 can blast the hole according to the preset conditions, thereby ensuring the blasting effect of the slotted tube.

[0044] To adjust the gap size on the slit pipe body, refer to Figure 1 , Figure 2 and Figure 3 The slit tube includes an arc-shaped support plate 1 and several arc-shaped cover plates 2 covering the arc-shaped support plate 1. Both the arc-shaped support plate 1 and the arc-shaped cover plates 2 are semi-circular, and the explosive charge 19 is covered between the arc-shaped support plate 1 and the arc-shaped cover plates 2. Considering that the required blasting degree is different for different parts along the length of the same hole to be blasted, the length of the arc-shaped support plate 1 is designed to be no less than the length of a single arc-shaped cover plate 2. At the same time, an appropriate number and length of arc-shaped cover plates 2 are selected according to the installation position of the slit tube, and the thickness or material of the multiple arc-shaped cover plates 2 are different. This allows multiple different arc-shaped cover plates 2 to sequentially cover the explosive charge 19 on the arc-shaped support plate 1 according to the blasting requirements. The ends of the arc-shaped cover plates 2 at both ends are flush with the ends of the arc-shaped support plate 1, so that the plugs 18 at both ends of the arc-shaped support plate 1 can effectively seal the two ends of the slit tube.

[0045] To ensure that the medicine package 19 is stably stored between the curved tray 1 and the curved cover 2, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The collar includes two semicircular rings 3 and two connectors for connecting the two semicircular rings 3. The two semicircular rings 3 are respectively sleeved on the outer peripheral walls of the arc-shaped cover plate 2 and the arc-shaped support plate 1. The two connectors are located on both sides of the semicircular rings 3. The connectors can be buckles or connecting rods 24. In this embodiment, the connectors are set as connecting rods 24. One end of the semicircular ring 3 is integrally formed with a cylindrical tube 25, and the other end is provided with a groove 26 for embedding the cylindrical tube. The connecting rod 24 passes through the side wall of the groove 26 and is inserted and adapted to the cylindrical tube 25, thereby fixing the two ends of the two semicircular rings 3 together through the two connecting rods 24. An adjustable connecting device is provided on the collar, and the adjustable connecting device is located between the two semicircular rings 3. The adjustable connecting device can not only adjust the distance between the arc-shaped cover plate 2 and the arc-shaped support plate 1, but also stably install the arc-shaped cover plate 2 and the arc-shaped support plate 1 on the semicircular ring 3, so that the medicine pack 19 is not easy to fall out of the cut tube body, and ensure the stability of the medicine pack 19 installation.

[0046] Since the arc-shaped support plate 1 and the arc-shaped cover plate 2 are separate structures, there are two gaps in the slit tube body formed by their fastening. To ensure stable fastening of the arc-shaped support plate 1 and the arc-shaped cover plate 2, and considering that the required blasting intensity may differ on both sides of the same hole to be blasted, the size of the two gaps in the slit tube body needs to be adjusted accordingly. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 Two adjustable connecting devices are provided on the same collar, located on opposite sides of the semicircular ring 3. Each of the two semicircular rings 3 has a slot 4 on its two adjacent end faces. The adjustable connecting device on one side of the semicircular ring 3 includes two U-shaped plates 7 and an adjusting assembly for adjusting the distance between the two U-shaped plates 7. The openings of the two U-shaped plates 7 are opposite in direction. One vertical end of the U-shaped plate 7 is connected to the end of the semicircular ring 3 via the slot 4, and the other vertical end is located inside the semicircular ring 3. Since the two semicircular rings 3 are respectively fitted onto the outer peripheral walls of the arc-shaped cover plate 2 and the arc-shaped support plate 1, the edges of the arc-shaped cover plate 2 and the arc-shaped support plate 1 are inserted into the two U-shaped plates 7. When the edge of the arc-shaped cover plate 2 / arc-shaped support plate 1 is inserted into the U-shaped plate 7, one vertical end of the U-shaped plate 7 is not fully inserted into the slot 4, and the other vertical end abuts against the inner wall of the arc-shaped cover plate 2 / arc-shaped support plate 1. This allows the two U-shaped plates 7 located on the same side of the semi-circular ring 3 to lift and separate the arc-shaped cover plate 2 and the arc-shaped support plate 1, thereby forming a gap on the cut tube body. The two U-shaped plates 7 located on both sides of the semi-circular ring 3 can stably lift the arc-shaped cover plate 2 / arc-shaped support plate 1.

[0047] To improve the stability of the two U-shaped plates 7 on both sides of the semi-circular ring 3 in supporting the arc-shaped cover plate 2 / arc-shaped support plate 1, and to minimize the risk of the edges of the arc-shaped cover plate 2 / arc-shaped support plate 1 detaching from the U-shaped plates 7, refer to... Figure 2 , Figure 3 , Figure 4 and Figure 5 An anti-slip layer 8 is provided on the vertical end of the U-shaped plate 7 inside the semi-circular ring 3. The anti-slip layer 8 is located on the inner wall of the U-shaped plate 7 and can be a damping pad or a rubber layer. When one vertical end of the U-shaped plate 7 is inserted into the slot 4 of the semi-circular ring 3 and the edge of the arc-shaped cover plate 2 / arc-shaped support plate 1 is inserted into the U-shaped plate 7, the anti-slip layer 8 abuts against the inner wall of the arc-shaped cover plate 2 / arc-shaped support plate 1, thereby making it difficult for the edge of the arc-shaped cover plate 2 / arc-shaped support plate 1 to come out of the U-shaped plate 7.

[0048] To achieve rapid adjustment of the gap between the arc-shaped cover plate 2 and the arc-shaped support plate 1, refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 Both U-shaped plates 7 located on the same side of the semicircular ring 3 have through holes 21. One U-shaped plate 7 has a circular countersunk groove 22 at the through hole 21 on its inner wall, and the other U-shaped plate 7 has a hexagonal countersunk groove 23 at the through hole 21 on its inner wall. The adjustment assembly includes a screw 9 that passes through the through holes 21 on the two U-shaped plates 7 in sequence, a threaded sleeve 10 fixed to the inner wall of one U-shaped plate 7, and a compression spring 11 located between the two U-shaped plates 7. One end of the threaded sleeve 10 is welded with a hexagonal plate 20 that matches the hexagonal countersunk groove 23, so that the threaded sleeve 10 is stably embedded and fixed in the hexagonal countersunk groove 23 of the U-shaped plate 7; one end of the screw 9 passes through the circular countersunk groove 22 and the insertion hole 21 of the U-shaped plate 7 in sequence and is inserted into the threaded sleeve 10 and threadedly connected to the threaded sleeve 10, and the other end is provided with a circular anti-detachment end 12. The anti-detachment end 12 is integrally formed with the screw 9, which prevents the U-shaped plate 7 from falling off the screw 9. In addition, the anti-detachment end 12 is located in the circular countersunk groove, so that the anti-detachment end 12 will not obstruct the edge of the arc-shaped cover plate 2 / arc-shaped support plate 1 from being inserted into the U-shaped plate 7. To prevent the compression spring 11 from bending under pressure, the compression spring 11 is sleeved on the screw 9, and both ends of the compression spring 11 abut against the two U-shaped plates 7 respectively, so that the compression spring 11 is always in a compressed state. At this time, not only can the anti-detachment end 12 always be located in the circular countersunk groove 22, but also the gap between the two semi-circular rings 3, the arc-shaped support plate 1 and the arc-shaped cover plate 2 can be kept stable under the pressure of no external force.

[0049] To ensure that the semicircular ring 3, when fitted onto the outer peripheral wall of the arc-shaped cover plate 2 / arc-shaped support plate 1, does not cause wear to the outer peripheral wall of the arc-shaped cover plate 2 or the arc-shaped support plate 1, refer to Figure 3and Figure 4 A filling layer 6 is provided on the inner wall of the semi-circular ring 3. The filling layer 6 can be a sponge block or a rubber block. In this embodiment, the filling layer 6 is set as a rubber block. Multiple rubber blocks are provided, and multiple rubber blocks are evenly bonded to the inner wall of the semi-circular ring 3. The arc-shaped cover plate 2 / arc-shaped support plate 1 is elastically abutted against the inner wall of the semi-circular ring 3 through multiple rubber blocks.

[0050] To ensure full energy release during blasting, the diameter of the borehole to be blasted is often larger than the diameter of the slotted pipe. The slotted pipe is suspended in the borehole by a support assembly, and its wall does not contact the inner wall of the borehole. Because the degree of blasting varies in some boreholes, it is necessary to adjust the distance between the slotted pipe and the centerline of the borehole to ensure the blasting effect of the slotted pipe containing the explosive charge 19. (Refer to...) Figure 2 , Figure 3 , Figure 7 and Figure 8 The support assembly includes a base 13 and a telescopic frame. One end of the telescopic frame is connected to a collar, and the other end is connected to the base 13. The slit pipe is mounted on the base 13 via the telescopic frame. The base 13 is placed on the inner wall of the hole. The length of the telescopic frame is adjusted to adjust the distance between the slit pipe and the center line of the hole, so that the slit pipe can adaptively move closer to or further away from one side of the inner wall of the hole according to the degree of blasting on the inner wall of the hole.

[0051] To ensure that the telescopic frame can stably support the slit pipe on the base 13, refer to... Figure 2 , Figure 3 , Figure 7 and Figure 8The base 13 has two sets of telescopic frames, which are located on both sides of the slit tube. To facilitate easier adjustment of the length of the telescopic frames, a through hole 5 is provided on the semicircular ring 3. The telescopic frame includes a rod 15 inserted into the through hole 5, two telescopic rods 16 located on both sides of the semicircular ring 3, and a locking member 17 for limiting the extension and retraction of the telescopic rods 16. The rod 15 is rotatably disposed in the through hole 5 of the semicircular ring 3. The telescopic rod 16 includes a square tube 161 and a square rod 162 slidably inserted into the square tube 161. One end of the square tube 161 is rotatably connected to the end of the rod 15, and one end of the square rod 162 is also hinged to the base 13. The square rod 162 has multiple locking holes 163, which are spaced apart along the length of the square rod 162. The locking member 17 is located on the square tube 161 and includes a locking rod 171 that slides through the side wall of the square tube 161 and a lever 172 fixedly installed on one side of the locking rod 171. The locking rod 171 is inserted into the locking hole 163. The length of the square rod 162 extending the square tube 161 is adjusted as needed. Then, the lever 172 pushes the locking rod 171 into the locking hole 163 on the square rod 162, thereby locking the square rod 162 onto the square tube 161. This completes the adjustment of the length of the telescopic rod 16, allowing the telescopic rod 16 to stably support the slit tube on the base 13.

[0052] To ensure that the orientation of the gaps on the slotted tube can be adjusted according to blasting requirements, refer to Figure 2 , Figure 3 , Figure 7 and Figure 8 Multiple through holes 5 are provided on the semicircular ring 3, and the multiple through holes 5 are distributed at intervals along the circumferential direction of the semicircular ring 3. One end of the square tube 161 is detachably connected to the insertion rod 15, and the insertion rod 15 is detachably installed in the through hole 5 of the semicircular ring 3. According to the blasting requirements, a suitable through hole 5 on the semicircular ring 3 can be selected, and the insertion rod 15 can be inserted. The telescopic rod 16 and the base 13 can be installed so that, with the base 13 and the telescopic rod 16 in place, the gap on the slit tube body faces the preset direction.

[0053] Considering the recoil force generated during the blasting of the slotted pipe, causing the base 13 to act on the inner wall of the hole, in order to reduce the relatively severe pressure loss caused by the base 13 on the inner wall of the hole, refer to Figure 1 , Figure 2 , Figure 3 and Figure 7The base 13 is arc-shaped, with its concave surface facing the semicircular ring 3. Two square rods 162 on the base 13 are hinged to the two side edges of the base 13. The base 13 can be made of plastic or spring steel; in this embodiment, it is made of spring steel. To ensure stable support for the slit pipe, multiple sets of support components are provided on the slit pipe, spaced apart along its length. Support rods 14 are riveted between adjacent bases 13, allowing for more stable support of the slit pipe.

[0054] This application also discloses a method for using an adjustable shaped charge blasting cutting device, which includes the following steps.

[0055] S1, a semi-circular ring 3 is fitted onto each end of the arc-shaped support plate 1;

[0056] S2, by rotating the anti-detachment end 12, the screw 9 rotates synchronously to adjust the distance between the two U-shaped plates 7. Then, one vertical end of the inverted U-shaped plate 7 is inserted into the slot 4 of the semi-circular ring 3, and the other vertical end is inserted into the arc-shaped support plate 1 and abuts against the inner wall of the arc-shaped support plate 1. At this time, adjustable connecting devices are installed on both sides of the semi-circular ring 3.

[0057] S3, Place several medicine packets 19 into the arc-shaped tray 1 in sequence;

[0058] S4. According to the blasting requirements, select an appropriate number, length, thickness and material of arc-shaped cover plates 2 and place them on the arc-shaped support plate 1 along the length direction of the arc-shaped support plate 1, so that the two ends of the arc-shaped cover plates 2 are respectively inserted into the two U-shaped plates 7.

[0059] S5, fasten the other semicircular ring 3 in the collar onto the arc-shaped cover plate 2, and make the slot 4 on the semicircular ring 3 connect with the vertical end on the U-shaped plate 7. Use the connecting rod 24 to connect the two semicircular rings 3. At this time, the arc-shaped cover plate 2 and the arc-shaped support plate 1 are fastened together by the adjustable connecting device, and there is a gap between them.

[0060] S6, seal both ends of the arc-shaped cover plate 2 and the arc-shaped support plate 1 to complete the assembly of the slit tube and the loading of the explosive;

[0061] S7. According to the blasting requirements, select the appropriate position of the through hole 5 on the semi-circular ring 3, insert the insertion rod 15, install the telescopic rod 16 and the base 13, so that under the support of the base 13 and the telescopic rod 16, the gap on the slit tube body faces the preset direction.

[0062] S8. According to the blasting requirements, adjust the length of the square rod 162 to extend the square tube 161, and then push the locking rod 171 into the locking hole 163 on the square rod 162 through the lever 172, thereby locking the square rod 162 on the square tube 161, thus completing the adjustment of the length of the telescopic rod 16, so that the telescopic rod 16 can stably support the slit tube on the base 13.

[0063] S9, detonating charge 19, to achieve the blasting treatment of the hole to be blasted.

[0064] The implementation principle of the adjustable shaped charge blasting cutting tube device and its usage method in this application embodiment is as follows: First, a semi-circular ring 3 is respectively fitted onto both ends of the arc-shaped support plate 1. Then, by rotating the anti-detachment end 12, the screw 9 rotates synchronously to adjust the distance between the two U-shaped plates 7. One vertical end of the inverted U-shaped plate 7 is inserted into the slot 4 of the semi-circular ring 3, and the other vertical end is inserted into the arc-shaped support plate 1 and abuts against the inner wall of the arc-shaped support plate 1. At this time, adjustable connecting devices are installed on both sides of the semi-circular ring 3. Next, several explosive charges 19 are placed into the arc-shaped support plate 1 in sequence. Then, according to the blasting requirements, an appropriate number of charges are selected. The arc-shaped cover plate 2, with its quantity, length, thickness, and material, is sequentially placed on the arc-shaped support plate 1 along its length, such that both ends of the arc-shaped cover plate 2 are inserted into the two U-shaped plates 7 respectively. Then, another semi-circular ring 3 from the collar is fastened onto the arc-shaped cover plate 2, and the groove 4 on the semi-circular ring 3 is inserted into the vertical end on the U-shaped plate 7. The two semi-circular rings 3 are connected using a connecting rod 24. At this time, the arc-shaped cover plate 2 and the arc-shaped support plate 1 are fastened together by an adjustable connecting device, with a gap between them. Finally, the two ends of the arc-shaped cover plate 2 and the arc-shaped support plate 1 are sealed to complete the assembly and loading of the slit tube.

[0065] After assembling and loading the slotted tube, it needs to be erected. First, according to the blasting requirements, select a suitable through hole 5 on the semi-circular ring 3 and insert the insertion rod 15. Install the telescopic rod 16 and the base 13. Then, place the slotted tube with the base 13 and the explosive charge 19 into the hole to be blasted, so that with the base 13 and the telescopic rod 16 erected, the gap on the slotted tube faces the preset direction. Next, according to the blasting requirements, adjust the length of the square rod 162 to extend the square tube 161. Push the locking rod 171 into the locking hole 163 on the square rod 162 through the lever 172, thereby locking the square rod 162 onto the square tube 161. This completes the adjustment of the length of the telescopic rod 16, allowing the telescopic rod 16 to stably erect the slotted tube on the base 13. Finally, detonate the explosive charge 19 to achieve the blasting treatment of the hole to be blasted.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable shaped charge blasting cutting tube device, characterized in that, include The slit tube body is used to load medicine packages. It is equipped with an arc-shaped support plate, multiple collars fitted on the arc-shaped support plate, and several arc-shaped cover plates covering the arc-shaped support plate. The arc-shaped cover plates are inserted into the collars. The collars include two semi-circular rings respectively fitted on the outer peripheral walls of the arc-shaped cover plates and the arc-shaped support plate, and two connectors located on both sides of the semi-circular rings for connecting the two semi-circular rings together. There is a gap between the arc-shaped support plate and the arc-shaped cover plates, and the length of the arc-shaped support plate is not less than the length of a single arc-shaped cover plate. An adjustable connecting device is located on the collar and can adjust the gap between the arc-shaped support plate and the arc-shaped cover plate; Multiple support components are used to support the cut pipe body. They are equipped with a base and a telescopic frame. One end of the telescopic frame is connected to a collar and the other end is connected to the base. Two adjustable connecting devices are provided on the collar, and the two adjustable connecting devices are respectively located on both sides of the semicircular ring. The two semicircular rings have slots on their close end faces. The adjustable connecting device includes two U-shaped plates and an adjusting component for adjusting the distance between the two U-shaped plates. The opening directions of the two U-shaped plates are opposite. One vertical end of each U-shaped plate is connected to the end of the semicircular ring through the slot, and the other vertical end of each U-shaped plate is located inside the semicircular ring and is used to contact the inner wall of the arc-shaped cover plate / arc-shaped support plate. When one vertical end of the U-shaped plate contacts the inner wall of the arc-shaped cover plate or arc-shaped support plate, the other vertical end of the U-shaped plate is not fully inserted into the slot.

2. The adjustable shaped charge blasting cutting tube device according to claim 1, characterized in that, The adjustment assembly includes a screw that passes through two U-shaped plates in sequence, a threaded sleeve fixed on the inner wall of one U-shaped plate, and a compression spring located between the two U-shaped plates. One end of the screw is threadedly connected to the threaded sleeve, and the other end is provided with an anti-detachment end. The compression spring is sleeved on the screw, and both ends of the compression spring abut against the two U-shaped plates respectively. The compression spring is always in a compressed state.

3. The adjustable shaped charge blasting cutting tube device according to claim 1, characterized in that, The U-shaped plate has an anti-slip layer on its vertical end inside the semi-circular ring, which is used to contact the inner wall of the arc-shaped cover plate or arc-shaped support plate. The anti-slip layer is located on the inner wall of the U-shaped plate.

4. The adjustable shaped charge blasting cutting tube device according to claim 1, characterized in that, A filling layer is provided on the inner wall of the semi-circular ring.

5. The adjustable shaped charge blasting cutting tube device according to claim 1, characterized in that, The semicircular ring has a through hole. The telescopic frame includes a rod inserted into the through hole, two telescopic rods located on both sides of the semicircular ring, and a locking device for limiting the extension and retraction of the telescopic rods. One end of the telescopic rod is detachably hinged to the end of the rod and the other end is hinged to the base.

6. The adjustable shaped charge blasting cutting tube device according to claim 5, characterized in that, The base is designed in an arc shape, with the concave surface of the arc facing the semicircular ring.

7. An adjustable shaped charge blasting cutting tube device according to claim 6, characterized in that, The semicircular ring has multiple through holes, and the multiple through holes are distributed at intervals along the circumferential direction of the semicircular ring.

8. The adjustable shaped charge blasting cutting tube device according to claim 1, characterized in that, A support rod connects two adjacent bases.

9. A method of using an adjustable shaped charge blasting cutting tube device, based on an adjustable shaped charge blasting cutting tube device as described in any one of claims 2-8, characterized in that, Includes the following steps, A semi-circular ring is fitted onto each end of the curved support plate; Adjust the distance between the two U-shaped plates, then insert one vertical end of the inverted U-shaped plate into the slot of the semi-circular ring, and insert the other vertical end into the arc-shaped support plate and abut against the inner wall of the arc-shaped support plate. At this time, adjustable connecting devices are installed on both sides of the semi-circular ring. Place several medicine packets into the curved tray one by one; Select an appropriate number of arc-shaped cover plates and place them sequentially on the arc-shaped support plate along its length, ensuring that the two ends of the arc-shaped cover plates are inserted into the two U-shaped plates respectively. The other semicircular ring in the collar is fastened to the arc-shaped cover plate, and the groove on the semicircular ring is inserted into the vertical end of the U-shaped plate. The two semicircular rings are connected. At this time, the arc-shaped cover plate and the arc-shaped support plate are fastened together by an adjustable connecting device, and a gap is left between them. The ends of the arc-shaped cover plate and arc-shaped support plate are sealed to complete the assembly of the slit tube and the loading of the explosive. Adjust the length of the telescopic frame as needed so that the slit tube with explosive charge is placed at a suitable height in the hole to be blasted by the telescopic frame and base. The explosive charge is detonated to achieve the blasting treatment of the hole to be blasted.

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