Blasting energy gathering pipe, fixing device and fixing method

Abstract

A blasting energy-gathering pipe comprises a circular-pipe-shaped pipe body, the pipe body comprises a first half pipe and a second half pipe which are detachably connected, a plurality of V-shaped grooves protruding inwards are formed in the first half pipe, a first connecting strip extending in the length direction is integrally connected to the edge of the first half pipe, and a second connecting strip extending in the length direction is integrally connected to the edge of the second half pipe. A first connecting strip is integrally connected to the edge of the first half pipe and located on the inner side of the first half pipe, a sliding groove extending in the length direction is formed in the first connecting strip, a second connecting strip extending in the length direction is integrally connected to the edge of the second half pipe, and the second connecting strip can be inserted into the sliding groove. According to the blasting energy gathering pipe, the fixing device and the fixing method, the whole pipe body is a circular pipe, the surface is smooth, and the pipe body can be more easily placed into a blasting hole.

Description

Technical Field

[0001] The present invention relates to the technical field of blasting equipment, in particular to a blasting energy-gathering tube, a fixing device and a fixing method. Background Art

[0002] The "blasting focused tube," or simply "focused tube," is a blasting device that utilizes the focused energy effect to destroy surrounding rock. This technology is primarily applicable to smooth blasting in railway, highway, and subway tunnels, as well as mining, tunneling, coal mining, and roof cutting projects. Existing blasting focused tubes, such as the D-type, have complex surface structures. During insertion into the blasthole, they can easily become stuck in residual debris and other particles, hindering installation. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a blasting energy-gathering tube, a fixing device and a fixing method. The tube body is a round tube with a smooth surface, which is easier to be placed in a blasting hole.

[0004] In order to achieve the above object, the specific scheme adopted by the present invention is: A blasting energy-gathering tube comprises a tubular body in the shape of a circular tube, the tubular body comprising a first half-tube and a second half-tube that are detachably connected, the first half-tube being provided with a plurality of V-shaped grooves that bulge inward, a first connecting strip extending in a length direction being integrally connected to the edge of the first half-tube, and the first connecting strip being located on the inner side of the first half-tube, a slide groove extending in a length direction being provided on the first connecting strip, a second connecting strip extending in a length direction being integrally connected to the edge of the second half-tube, and the second connecting strip being capable of being inserted into the slide groove.

[0005] Preferably, the second connecting strip is integrally connected with a raised strip extending along the length direction, and the sliding groove matches the shape of the second connecting strip and the raised strip.

[0006] Preferably, the lengths of the second connecting strip and the protruding strip are both greater than the length of the second half tube, and both ends of the second connecting strip and the protruding strip extend to the outside of the tube body.

[0007] Preferably, both ends of the tube body are detachably connected with end plates, two positioning holes are provided on the end plates, the second connecting strip and the raised strip can pass through the positioning holes, and a through hole for the detonating cord to pass through is provided in the middle of the end plates.

[0008] Preferably, two positioning seats are fixedly connected to one side of the end plate facing the tube body, and the positioning hole passes through the positioning seats.

[0009] Preferably, at least one inserting strip is fixedly connected to a side of the end plate facing away from the tube body, the inserting strip extends along the length direction of the tube body, and an outer side wall of the inserting strip is provided with an inclined surface.

[0010] A fixing device for connecting two of the above-mentioned explosive energy-gathering tubes, the fixing device comprising a spacer tube, at least one insertion hole being formed at the end of the spacer tube, two mutually parallel slits being formed on the hole wall of the insertion hole, and the slits extending through the outer wall of the spacer tube, a movable portion being formed between the two slits, the insertion strip being capable of being correspondingly inserted into the insertion hole and squeezing the movable portion so that the movable portion deforms toward the outside of the spacer tube.

[0011] Preferably, the movable portion is fixedly connected to a contact block extending into the socket, and the contact block is hemispherical. When the inserting strip is inserted into the socket, the inclined surface can contact the contact block and press the contact block toward the outside of the spacer tube.

[0012] Preferably, the movable portion is fixedly connected with at least one spike protrusion extending toward the outer circumference of the spacer tube.

[0013] The fixing method, based on the above fixing device, comprises the following steps: Inserting a portion of the insert into the corresponding insertion hole to connect two adjacent blasting energy-gathering tubes; placing a plurality of the blasting energy-gathering tubes and a plurality of the spacer tubes into a blasting hole; All the blasting energy-gathering tubes are pushed toward the inside of the blasting hole, so that the inserting rods are completely inserted into the inserting holes, and the movable portion is deformed toward the outside of the spacer tube until it is pressed against the hole wall of the blasting hole.

[0014] After the blasting energy-gathering tube of the present invention is assembled, the tube body is a round tube with a smooth surface, which is easier to place in the blasting hole. The V-shaped groove on the tube body can control the release direction of energy when the explosive explodes, meeting the explosion requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 is an end view of the explosive charging tube of the present invention; Figure 2 It is a side view of the second half pipe; Figure 3 This is a schematic diagram of the arrangement of the positioning seat and the positioning hole; Figure 4 This is a diagram of how the cuttings are set up; Figure 5 It is a schematic diagram of the structure of the cutting; Figure 6 is a cross-sectional view of the fixture; Figure 7 This is a schematic diagram of the setting method of the spike protrusion.

[0017] Figure numerals: 1-first half tube, 2-V-shaped groove, 3-first connecting strip, 4-second half tube, 5-second connecting strip, 6-raised strip, 7-end plate, 8-through hole, 9-positioning seat, 10-positioning hole, 11-insertion strip, 12-inclined surface, 13-spacer tube, 14-insertion hole, 15-contact block, 16-spike protrusion, 17-movable part, 18-slit. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0019] like Figures 1 to 5 As shown, the present invention first provides a blasting energy-gathering tube, including a circular tubular body, the tube body including a first half tube 1 and a second half tube 4 that can be detachably connected, the first half tube 1 is provided with a plurality of V-shaped grooves 2 that bulge inward, the edge of the first half tube 1 is integrally connected with a first connecting strip 3 extending in the length direction, and the first connecting strip 3 is located on the inner side of the first half tube 1, the first connecting strip 3 is provided with a slide groove extending in the length direction, the edge of the second half tube 4 is integrally connected with a second connecting strip 5 extending in the length direction, and the second connecting strip 5 can be inserted into the slide groove.

[0020] During use, the second connecting strip 5 is inserted into the corresponding slot on the first connecting strip 3. The second half-tube 4 is then pushed along its length until the ends of the first half-tube 1 and the second half-tube 4 are aligned. This completes the connection between the first half-tube 1 and the second half-tube 4, and assembles the complete tube body. Once assembled, the tube body is a round tube with a smooth surface, making it easier to insert into the blasthole. The V-grooves 2 on the tube body control the direction of energy release during explosive detonation, meeting the requirements of the explosion. The number, location, and orientation of the V-grooves 2 can be flexibly determined based on actual needs, and will not be further elaborated here.

[0021] To further enhance the stability of the connected first and second half-tubes 1, 4, and the overall structural stability of the tube body, the second connecting strip 5 is integrally connected with a raised strip 6 extending along its length. The chute matches the shapes of the second connecting strip 5 and the raised strip 6. Furthermore, the raised strip 6 protrudes toward one side of the second connecting strip 5, and the inner wall of the chute simultaneously restrains the second connecting strip 5 and the raised strip 6 in different directions. This allows the first and second connecting strips 3, 5 to be mutually restrained in at least two directions, thereby enhancing the stability of the connection between the first and second half-tubes 1, 4.

[0022] In order to stabilize the position of the explosive inside the blasting energy-gathering tube, both ends of the tube body are detachably connected with end plates 7. Figure 2 As shown, the length of the second connecting strip 5 and the raised strip 6 is greater than that of the second half tube 4. Both ends of the second connecting strip 5 and the raised strip 6 extend to the outside of the tube body. Two positioning holes 10 are provided on the end plate 7, into which the second connecting strip 5 and the raised strip 6 can be inserted. A through hole 8 for the passage of the detonating cord is provided in the middle of the end plate 7. The end plate 7 can partially seal the end of the blasting energy tube to stabilize the position of the explosives inside. By providing the positioning holes 10, the second connecting strip 5 and the raised strip 6 can be smoothly extended to the outside of the tube body, and the second connecting strip 5 and the raised strip 6 can be used to connect the tube body to the end plate 7 without the need for additional connectors, resulting in a simpler structure. The through hole 8 facilitates the insertion of the detonating cord.

[0023] To further enhance the stability of the end plate 7, two positioning seats 9 are fixedly connected to the side of the end plate 7 facing the tube body, and positioning holes 10 pass through the positioning seats 9. By providing the positioning seats 9, the positioning seats 9 can be used to limit the extension of the second connecting strip 5 and the raised strip 6, and the extension of the second connecting strip 5 and the raised strip 6 can also be used to limit the positioning seats 9 and the end plate 7, thereby further enhancing the stability of the end plate 7.

[0024] Furthermore, at least one inserting strip 11 is fixedly connected to a side of the end plate 7 facing away from the tube body. The inserting strip 11 extends along the length direction of the tube body, and an inclined surface 12 is provided on the outer side wall of the inserting strip 11 .

[0025] Considering that some blasting holes need to use multiple blasting energy-gathering tubes, in order to facilitate the connection of two adjacent blasting energy-gathering tubes, such as Figure 6 and Figure 7As shown, the present invention further provides a fixing device for connecting two of the above-mentioned explosive energy-gathering tubes. The fixing device includes a spacer tube 13. At least one insertion hole 14 is formed at the end of the spacer tube 13. Two parallel slits 18 are formed on the hole wall of the insertion hole 14. The slits 18 pass through the outer wall of the spacer tube 13. A movable portion 17 is formed between the two slits 18. The insertion strip 11 can be correspondingly inserted into the insertion hole 14 and squeeze the movable portion 17 to deform the movable portion 17 toward the outside of the spacer tube 13.

[0026] During use, the spacer tube 13 is placed between two adjacent explosive focusing tubes, and the inserts 11 connected to the end plate 7 are inserted into the insertion holes 14. This allows the spacer tube 13 to connect the two explosive focusing tubes together. More specifically, when inserting the explosive focusing tubes into the blasting hole, all the explosive focusing tubes and fixtures can be placed into the blasting hole in a sequence where each explosive focusing tube and fixture are intersected. The subsequently inserted explosive focusing tubes and fixtures can squeeze the previously inserted explosive focusing tubes and fixtures, causing the inserts 11 to be inserted into the insertion holes 14 accordingly, thereby connecting the two adjacent explosive focusing tubes together using the fixtures. On the other hand, when the insert 11 is inserted into the insertion hole 14, it can squeeze the movable portion 17, causing it to deform toward the outside of the spacer tube 13, thereby forming a ridge protruding from the surface of the spacer tube 13. The ridge can tightly fit the inner wall of the blasting hole and slightly penetrate the inner wall of the blasting hole, thereby fully fixing the spacer tube 13 in the blasting hole, that is, fully fixing the fixing device in the blasting hole. After the fixing device is fixed, it can also fully fix the blasting energy-gathering tube in the blasting hole, achieving the effect of ensuring the stability of the blasting energy-gathering tube, thereby ensuring that the blasting energy-gathering tube can be used to accurately control the blasting process.

[0027] To further ensure that the insert 11 compresses the movable portion 17 and deforms it toward the outside of the spacer tube 13 when inserted into the insertion hole 14, the movable portion 17 is fixedly connected to a hemispherical contact block 15 that extends into the insertion hole 14. During insertion of the insert 11 into the insertion hole 14, the inclined surface 12 can contact the contact block 15 and compress the contact block 15 toward the outside of the spacer tube 13. Based on the provision of the inclined surface 12, the width of the portion of the insert 11 near the end plate 7 is greater than the width of the portion farther from the end plate 7. During insertion of the insert 11 into the insertion hole 14, the inclined surface 12 first contacts the contact block 15. As the insert 11 continues to move, the insert 11 gradually compresses the contact block 15, causing it to move toward the outside of the spacer tube 13, thereby causing the movable portion 17 to deform toward the outside of the spacer tube 13. The hemispherical shape of the contact block 15 prevents obstruction of the insert 11, ensuring smooth insertion of the insert 11 into the insertion hole 14.

[0028] like Figure 6 and Figure 7 As shown, to fully secure the fixture in the blasthole using the deformed movable portion 17, the movable portion 17 is fixedly connected to at least one spiked protrusion 16 extending toward the outer periphery of the spacer tube 13. The presence of the spiked protrusion 16 increases the pressure exerted on the inner wall of the blasthole when the movable portion 17 is squeezed and deformed toward the outside of the spacer tube 13, thereby increasing the friction between the movable portion 17 and the inner wall of the blasthole and fully securing the fixture. If the pressure is high enough, the tip of the spiked protrusion 16 can slightly penetrate the inner wall of the blasthole, further securing the fixture. Furthermore, the spiked protrusion 16 has a conical cross-section, and its larger end is fixedly connected to the movable portion 17. It should also be noted that although the spiked protrusion 16 protrudes from the surface of the tube, its height is significantly smaller than the diameter of the tube, and does not make it difficult to insert the tube into the blasthole.

[0029] Finally, the present invention provides a fixing method, based on the above-mentioned fixing device, and the method includes S1 to S3.

[0030] S1. Insert a portion of the insert 11 into the corresponding insertion holes 14 to connect two adjacent explosive charging tubes. In S1, only a small portion of the insert 11 can be inserted into the insertion holes 14 to maintain the connection between the fixture and the two adjacent explosive charging tubes. It is important to avoid severe deformation of the movable portion 17, which could cause subsequent insertion into the blast hole.

[0031] S2. Place multiple blasting energy-gathering tubes and multiple spacer tubes 13 into the blasting hole.

[0032] S3. Push all blasting energy-gathering tubes toward the blasthole, fully inserting the insert 11 into the insertion hole 14 and deforming the movable portion 17 toward the exterior of the spacer tube 13 until it presses against the blasthole wall. Specifically, during the movement of the disassembly sleeve 11, the contact block 15 moves toward the exterior of the spacer tube 13, simultaneously deforming the movable portion 17 toward the exterior of the spacer tube 13. During the deformation of the movable portion 17, the spiked protrusion 16 is simultaneously moved until the spiked protrusion 16 presses against the inner wall of the blasthole or even penetrates the inner wall of the blasthole, completing the fixing of the fixing device. Once the fixing device is fixed, the connected blasting energy-gathering tubes are also fixed, thus completing the installation of the blasting energy-gathering tubes.

[0033] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0034] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A blasting shaped energy tube, characterized in that: The invention relates to a tubular body in the shape of a circular tube, wherein the tubular body comprises a first half-tube (1) and a second half-tube (4) which are detachably connected, wherein a plurality of V-shaped grooves (2) bulging inward are provided on the first half-tube (1), a first connecting strip (3) extending in the length direction is integrally connected to the edge of the first half-tube (1), and the first connecting strip (3) is located on the inner side of the first half-tube (1), and a sliding groove extending in the length direction is provided on the first connecting strip (3), and a second connecting strip (5) extending in the length direction is integrally connected to the edge of the second half-tube (4), and the second connecting strip (5) can be inserted into the sliding groove.

2. The explosive shaped tube according to claim 1, characterized in that: The second connecting strip (5) is integrally connected with a raised strip (6) extending in the length direction, and the sliding groove matches the shape of the second connecting strip (5) and the raised strip (6).

3. The explosive shaped tube according to claim 2, characterized in that: The lengths of the second connecting strip (5) and the raised strip (6) are both greater than the length of the second half tube (4), and both ends of the second connecting strip (5) and the raised strip (6) extend to the outside of the tube body.

4. The explosive shaped tube according to claim 3, characterized in that: Both ends of the tube body are detachably connected to end plates (7), the end plates (7) are provided with two positioning holes (10), the second connecting strip (5) and the raised strip (6) can pass through the positioning holes (10), and a through hole (8) for the detonating cord to pass through is provided in the middle of the end plates (7).

5. The explosive shaped charge tube according to claim 4, characterized in that: Two positioning seats (9) are fixedly connected to one side of the end plate (7) facing the tube body, and the positioning hole (10) passes through the positioning seat (9).

6. The explosive shaped charge tube according to claim 5, characterized in that: At least one inserting strip (11) is fixedly connected to a side of the end plate (7) facing away from the tube body. The inserting strip (11) extends along the length direction of the tube body, and an inclined surface (12) is provided on the outer side wall of the inserting strip (11).

7. A fixing device for connecting two explosive shaped tubes according to claim 6, characterized in that: The fixing device comprises a spacer tube (13), at least one insertion hole (14) is formed at the end of the spacer tube (13), two mutually parallel slits (18) are formed on the hole wall of the insertion hole (14), and the slits (18) pass through the outer wall of the spacer tube (13), and a movable portion (17) is formed between the two slits (18). The insertion strip (11) can be correspondingly inserted into the insertion hole (14) and squeeze the movable portion (17) to deform the movable portion (17) toward the outside of the spacer tube (13).

8. The fixing device according to claim 7, wherein: The movable portion (17) is fixedly connected to a contact block (15) extending into the insertion hole (14), and the contact block (15) is hemispherical. When the insertion strip (11) is inserted into the insertion hole (14), the inclined surface (12) can contact the contact block (15) and press the contact block (15) toward the outside of the spacer tube (13).

9. The fixing device according to claim 7, wherein: The movable portion (17) is fixedly connected to at least one spike protrusion (16) extending toward the outer peripheral side of the spacer tube (13).

10. A fixing method, characterized in that Based on the fixing device according to any one of claims 7 to 9, the method comprises the following steps: Inserting a portion of the inserting strip (11) into the inserting hole (14) to connect two adjacent blasting energy-gathering tubes; Placing a plurality of the blasting energy-gathering tubes and a plurality of the spacer tubes (13) into a blasting hole; All the blasting energy-gathering tubes are pushed toward the inside of the blasting hole, so that the insert (11) is completely inserted into the insert hole (14), and the movable portion (17) is deformed toward the outside of the spacer tube (13) until it is pressed against the wall of the blasting hole.

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