Explosion propagation structure, explosion belt and rocket blaster

Abstract

The explosion propagation structure comprises outer skins, connecting pieces are arranged at the two ends of each outer skin, one end of any outer skin can be connected with the corresponding end of the other outer skin through the corresponding connecting piece, the connecting pieces are filled with end detonating explosive columns, and the outer skins are further filled with explosives capable of being detonated by the end detonating explosive columns; the two sets of additional detonating fuses are located in the explosive, each set of additional detonating fuses comprises two auxiliary detonating fuses, one auxiliary detonating fuse penetrates through the end detonating explosive column, the two ends of the auxiliary detonating fuse extend out, and one end of the other auxiliary detonating fuse penetrates into the end detonating explosive column and the other end of the auxiliary detonating fuse extends out; and the end parts of the three main detonating cords are overlapped with the end parts of each group of additional detonating cords in a staggered manner. The explosion propagation channel is additionally arranged in the explosion zone to guarantee continuous explosion of the explosion zone, and explosion is complete. The invention further provides an explosion belt and a rocket blaster.

Description

Technical Field

[0001] This application belongs to the field of blasting equipment technology, specifically relating to a detonation transmission structure. Background Technology

[0002] The primary function of a rocket-propelled explosive device is to clear obstacles such as landmines by using the main explosive charge of the explosive strip to generate overpressure and explosive products. After the rocket engine ignites, it tows the explosive strip into the air. During flight, the explosive strip bears the pull of the rocket engine, with most of this pull being borne by its outer sheath. Due to factors such as the rocket engine's pull, flight inertia, and the pulling of terrain protrusions like trees, the outer sheath of the explosive strip may stretch. Since the internal explosive charge is not malleable, the explosive charge inside the outer sheath may not completely fill the explosive strip. This discontinuity in the explosive charge leads to discontinuous detonation, resulting in an incomplete explosion of the explosive strip. Summary of the Invention

[0003] In view of this, this application provides a detonation transmission structure with dual detonation transmission channels, which ensures continuous and complete detonation of the detonation zone by setting an additional detonation transmission channel inside the detonation zone.

[0004] To achieve the above objectives, this application adopts the following technical solution: A detonation transmission structure, comprising: The outer skin has connectors at both ends, and one end of any outer skin can be connected to the corresponding end of another outer skin through the connectors. The connectors are filled with end-detonating explosive charges, and the outer skin is also filled with explosives that can be detonated by the end-detonating explosive charges. Two sets of auxiliary detonating cords are located inside the explosive. Each set of auxiliary detonating cords includes two secondary detonating cords. One secondary detonating cord passes through the end detonating charge and extends out at both ends. The other secondary detonating cord has one end inserted into the end detonating charge and the other end extending out. Three main detonating cords, the ends of which are staggered with the ends of each set of auxiliary detonating cords.

[0005] Furthermore, the overlapping joints are bound with restraint straps.

[0006] Furthermore, the end-detonating charge includes a flat detonating charge, a semi-circular charge, and an upper circular charge, wherein a secondary detonating cord passes through the space between the semi-circular charge and the upper charge, and one end of another secondary detonating cord is inserted into the upper circular charge.

[0007] Furthermore, the connector includes a male connector and a female connector with openings at both ends, wherein the male connector can be inserted into the female connector and locked in place.

[0008] Furthermore, both the male and female connectors are internally provided with a clamping ring and an inner conical sleeve for fixing the outer skin.

[0009] Furthermore, both the male and female connectors are provided with pressure caps at their ends.

[0010] Furthermore, both the male and female connectors are provided with gaskets relative to the pressure cap, and the end of the secondary detonating cord extends out of the gasket.

[0011] This application also includes an explosion zone, a plurality of explosion transmission structures connected together, and a fuse disposed at one end of the explosion zone to detonate the end detonating charge.

[0012] This application also includes a rocket detonator that includes the explosive zone.

[0013] The beneficial effects of this application are: This application incorporates two detonation transmission channels: a first channel consisting of an end-detonating charge and the explosive, and a second channel consisting of an end-detonating charge, an additional detonating cord, and a main detonating cord. When the outer sheath is stretched, causing the internal explosive to become insufficiently filled and resulting in a discontinuous explosion, the second detonation transmission channel employs an interlocking detonating cord structure. This structure allows the detonating cord to stretch with the outer sheath without breaking, thus enabling rapid detonation of the explosive and effectively ensuring the continuity of the explosion and the complete detonation of the blast zone. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of a single-channel detonation transmission structure; Figure 2 This is a cross-sectional view of the detonation transmission structure in this application; Figure 3 This is a schematic diagram of the interlocking joints inside the detonation transmission structure in this application; In the diagram: 1 Outer casing, 2 Explosive, 3 End detonating charge, 31 Flat detonating charge, 32 Semi-circular charge, 33 Upper circular charge, 4 Male connector, 5 Female connector, 6 Main detonating cord, 7 Secondary detonating cord, 8 Inner cone sleeve, 9 Compression ring, 10 Pressure cap, 11 Pad sleeve. Detailed Implementation

[0015] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0016] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0017] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0018] To facilitate understanding of this application, the background technology is further explained below. Typically, an blast zone has a multi-segment structure, and each segment can be considered an independent blast transmission structure. (Refer to...) Figure 1 Each detonation transmission structure generally includes an outer skin 1, connecting parts, and explosive 2 filled inside the outer skin 1. During a normal detonation, the explosive 2 in one section of the detonation transmission structure detonates, then detonates the adjacent section, creating a chain reaction of explosions. However, after the detonation belt is ejected by the rocket engine, it experiences stress. Because the outer skin 1 has a certain degree of ductility while the internal explosive 2 does not, the outer skin 1 may extend beyond its length. In this case, the internal explosive 2 may not be able to completely fill a single section of the detonation transmission structure, leading to discontinuities in the detonation belt, resulting in discontinuous explosions, remaining explosive material, and a reduced blast radius.

[0019] Combined with reference Figure 1-3 This application provides a detonation transmission structure, including: The outer skin 1 has connectors at both ends. One end of any outer skin 1 can be connected to the corresponding end of another outer skin 1 through the connectors. The connectors are filled with end-detonating explosive charges 3. The outer skin 1 is also continuously filled with explosives 2 that can be detonated by the end-detonating explosive charges 3. Two sets of auxiliary detonating cords are located inside the explosive charge 2. Each set of auxiliary detonating cords includes two secondary detonating cords 7. One secondary detonating cord 7 passes through the end detonating charge 3 and extends out at both ends, while one end of the other secondary detonating cord 7 is inserted into the end detonating charge 3. Three main detonating cords 6, the ends of which are staggered with the ends of each set of auxiliary detonating cords.

[0020] Specifically, refer to Figure 3 The ends of the three main detonating cords 6 are staggered in length, and the ends of the two auxiliary detonating cords 7 are also staggered in length. The ends of the three main detonating cords 6 and the ends of the two auxiliary detonating cords 7 are interlocked. It should be ensured that the longest end of the three main detonating cords 6 can interlock with all ends of the two auxiliary detonating cords 7, and the longest end of the two auxiliary detonating cords 7 can interlock with all ends of the three main detonating cords 6. By adopting the structure of interlocking main detonating cords 6 and auxiliary detonating cords 7, the second detonation channel has a certain degree of extensibility. When the outer sheath 1 is stretched, the second detonation channel can simultaneously stretch and extend without breaking, thus effectively ensuring the effective detonation of the entire detonation structure when the first detonation channel experiences discontinuous explosions due to the stretching of the outer sheath 1 and the inability of the explosive 2 to fill it.

[0021] Reference Figure 3 Understandably, the overlapping joints are bound with restraint straps.

[0022] Specifically, to prevent insecure overlaps at the interlocking points, which could lead to overlap failure and the breakage of the second detonation channel, the overlaps can be secured with restraint straps to ensure effective overlap of all detonating cords. It should be noted that the restraint straps should not restrict the movement of the detonating cords along their length. The restraint straps can be elastic bands, paper tape, or transparent tape, etc.

[0023] Reference Figure 2 It is understood that the end detonating charge 3 includes a flat detonating charge 31, a semi-circular charge 32 and an upper circular charge 33, wherein a secondary detonating cord 7 passes through the space between the semi-circular charge 32 and the upper circular charge 33, and one end of another secondary detonating cord 7 is inserted into the upper circular charge 33.

[0024] Specifically, the flat detonating charge 31 is connected to a semi-circular charge 32, which encloses the upper circular charge 33. A channel is provided between the semi-circular charge 32 and the upper circular charge 33, allowing the secondary detonating cord 7 to pass through. One secondary detonating cord 7 passes through the channel, with both ends extending out of the upper circular charge 33. One end of the other secondary detonating cord 7 is inserted into the upper circular charge 33, and the other end extends out of the upper circular charge 33. Upon detonation, the flat detonating charge 31 is detonated first, which then detonates the semi-circular charge 32 and the upper circular charge 33 in sequence. The upper circular charge 33 detonates the explosive 2 and the secondary detonating cord 7, and the secondary detonating cord 7 detonates the primary detonating cord 6. When the outer sheath 1 is stretched, the explosive 2 may not be able to completely fill the outer sheath 1. In this case, the first detonation channel is disconnected, while the second detonation channel can still detonate normally.

[0025] Reference Figure 2 It is understood that the connector includes a male connector 4 and a female connector 5 with openings at both ends, and the male connector 4 can be inserted into the female connector 5 and locked in place.

[0026] Specifically, the male connector 4 may have a latch at its end, and the female connector 5 may have a locking groove inside. When the male connector 4 is inserted into the female connector 5 and rotated, the latch can be screwed into the locking groove, thereby completing the connection and locking of the male connector 4 and the female connector 5. It is understood that both the male connector 4 and the female connector 5 can be implemented using detachable connection structures existing in the prior art.

[0027] Reference Figure 2 It is understood that both the male connector 4 and the female connector 5 are provided with a clamping ring 9 and an inner cone sleeve 8 for fixing the outer skin 1.

[0028] Specifically, both the male connector 4 and the female connector 5 can be double-layer sleeve structures, with the outer layer being a conical structure and the inner layer being a cylindrical structure. The clamping ring 9 is located between the conical structure and the cylindrical structure. The end of the outer skin 1 passes through the inner conical sleeve 8 and is folded over to wrap around the inner conical sleeve 8. The outer skin 1, together with the inner conical sleeve 8, is inserted into the male connector 4 or the female connector 5 and fitted onto the cylindrical structure. At the same time, the inner conical sleeve 8 presses the outer skin 1 against the inner wall of the conical structure, thereby connecting the outer skin 1 to the male connector 4 and the female connector 5.

[0029] Reference Figure 2 It is understood that both the male connector 4 and the female connector 5 are provided with pressure caps 10 at their ends.

[0030] Specifically, the pressure cap 10 can be threaded or snap-fitted to the male connector 4 and female connector 5. The pressure cap 10 is used to install the end detonating charge 3 in the male connector 4 and female connector 5. The pressure cap 10 can be made of thin metal or plastic material, and it is necessary to ensure that the end detonating charge 3 can blast through the pressure cap 10 and detonate the adjacent detonation transmission structure.

[0031] Reference Figure 2 It is understood that both the male connector 4 and the female connector are provided with a gasket 11 relative to the pressure cap 10, and the end of the auxiliary detonating cord 7 extends out of the gasket 11.

[0032] Specifically, the sleeve 11 is used to install the end detonating charge 3 in the male connector 4 and the female connector 5. The sleeve 11 can be connected to the male connector 4 and the female connector 5 by thread or snap-fit. The sleeve 11 has an opening that allows the auxiliary detonating cord 7 to pass through. The sleeve 11 can be made of a thin metal or plastic material, which needs to ensure that the end detonating charge 3 can detonate the explosive 2 inside the outer casing 1.

[0033] This application also includes an explosion zone, a plurality of explosion transmission structures connected together, and a fuse disposed at one end of the explosion zone to detonate the end detonating charge.

[0034] This application also includes a rocket detonator that includes the explosive zone.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A detonation transmission structure, characterized in that, include: The outer skin has connectors at both ends, and one end of any outer skin can be connected to the corresponding end of another outer skin through the connectors. The connectors are filled with end-detonating explosive charges, and the outer skin is also filled with explosives that can be detonated by the end-detonating explosive charges. Two sets of auxiliary detonating cords are located inside the explosive. Each set of auxiliary detonating cords includes two secondary detonating cords. One secondary detonating cord passes through the end detonating charge and extends out at both ends. The other secondary detonating cord has one end inserted into the end detonating charge and the other end extending out. Three main detonating cords, the ends of which are staggered with the ends of each set of auxiliary detonating cords.

2. The detonation transmission structure according to claim 1, characterized in that, The overlapping joints are bound with restraint straps.

3. A detonation transmission structure according to claim 1 or 2, characterized in that, The end-detonating charge includes a flat detonating charge, a semi-circular charge, and an upper circular charge. One auxiliary detonating cord passes through the space between the semi-circular charge and the upper charge, and one end of another auxiliary detonating cord is inserted into the upper circular charge.

4. The detonation transmission structure according to claim 3, characterized in that, The connector includes a male connector and a female connector with openings at both ends. The male connector can be inserted into the female connector and locked in place.

5. The detonation transmission structure according to claim 4, characterized in that, Both the male and female connectors are internally provided with a clamping ring and an inner conical sleeve for fixing the outer skin.

6. The detonation transmission structure according to claim 5, characterized in that, Both the male and female connectors are equipped with pressure caps at their ends.

7. The detonation transmission structure according to claim 6, characterized in that, Both the male and female connectors are provided with gaskets relative to the pressure cap, and the end of the auxiliary detonating cord extends out of the gasket.

8. An explosive zone, characterized in that, The blast zone includes multiple detonation transmission structures as described in claim 7 connected together, and a fuse disposed at one end of the blast zone capable of detonating the end detonating charge.

9. A rocket detonator, characterized in that, The rocket detonator includes the explosive zone as described in claim 8.

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