A dual-path detonation fusion explosion sequence to resist high overload

Abstract

The utility model discloses a dual-path detonation fusion anti-large overload detonation sequence, which is composed of five levels of pyrotechnics. The first level pyrotechnic is an electric detonator, the second level pyrotechnic is a detonating charge column, the third level pyrotechnic is a relay charge column, the fourth level pyrotechnic is a detonating charge column, and the fifth level pyrotechnic is an expansion charge column. These five levels of pyrotechnics together constitute the detonation sequence. After firing, the fuze works according to a preset program, supplies power to the electric detonator to detonate the electric detonator, the energy generated by the detonation of the electric detonator detonates the detonating charge column, the energy generated by the detonating charge column detonates the relay charge column, the relay charge column is a cylindrical charge column, and the two relay charges detonate the detonating charge column together above the detonating charge column, and the detonating charge column then detonates the expansion charge column. The utility model can effectively improve the large overload resistance of the dual-path detonation sequence, while also ensuring reliability and improving processability.

Description

Technical Field

[0001] This utility model belongs to the field of dual-path detonation sequence, specifically relating to a dual-path detonation fusion anti-overload detonation sequence. Background Art

[0002] Due to the trend towards miniaturization, some fuses are now using a design with dual fuse units connected in parallel, replacing two fuses. Therefore, a dual-path detonation sequence needs to be designed in the fuse to ensure reliable detonation.

[0003] Current similar fuse products are designed with a detonation sequence consisting of dual-path electric ignition tubes, a flame detonator, a detonating charge, a detonating charge, and a propagating charge. The dual-path detonation fusion and single-point output are achieved through the oblique charge and the detonating charge.

[0004] In the above dual-path detonation sequence design, the electric ignition tube has limited high overload resistance. To improve the overload resistance, an additional buffer design is needed. The detonating charge is an inclined charge with poor pressing process. The charge has defects such as uneven density, sharp edges, and collapse, resulting in insufficient stability under high overload conditions. The flame detonator contains ignition powder and is not a fully sealed design, making it susceptible to environmental influences and limiting its storage life. Utility Model Content

[0005] This invention provides a dual-path detonation fusion anti-overload detonation sequence to achieve stability and reliability of the dual-path integrated parallel fuse under high overload conditions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dual-path detonation fusion anti-overload detonation sequence includes a main body and five levels of pyrotechnics installed on the main body; wherein the first level pyrotechnic is an electric detonator, and the second, third, fourth and fifth level pyrotechnics are respectively detonating charge, relay charge, detonation charge and expansion charge, and all charges are protected by metal shells and buffer pads are provided on the end face of the charges.

[0008] As a preferred embodiment of the above scheme, the electric detonator is fixed to the body with adhesive, and ignition holes are provided above and below the two detonating charges. The energy of the electric detonator detonation is transmitted through the ignition holes to ignite the detonating charges, and the energy of the detonating charges detonation is transmitted through the ignition holes to ignite the relay charges.

[0009] As a preferred embodiment of the above scheme, the two relay explosive charges are aligned above the detonating explosive charge, and the detonating explosive charge is aligned above the propagating explosive charge.

[0010] As a preferred embodiment of the above scheme, the surface of the detonating charge is coated with glue.

[0011] As a preferred embodiment of the above solution, the metal housing is designed with connecting threads for connection with other components.

[0012] Due to the above structure, the beneficial effects of this utility model are as follows:

[0013] 1. The first-stage pyrotechnic device in this detonation sequence uses an electric detonator, which improves the overload resistance and eliminates the need for additional buffer design, simplifying the process;

[0014] 2. The second-stage pyrotechnic device in this detonation sequence uses a detonating charge instead of a flame detonator, which improves sealing performance, reduces environmental impact, and extends storage life.

[0015] 3. The relay charge used in the third-level pyrotechnic device of this detonation sequence adopts a cylindrical charge design, which improves the manufacturability of the charge, avoids defects such as uneven charge density, sharp edges, and collapse, and improves the overload resistance.

[0016] 4. This detonation sequence uses a metal casing to protect all explosive charges and adds a buffer pad to the end face of the explosive charge for cushioning, which improves the detonation sequence's resistance to high overload.

[0017] 5. The fifth-stage pyrotechnic charge in this detonation sequence features an encapsulation design, which enhances the charge's resistance to high overload and ensures its stability under high overload conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model. DETAILED DESCRIPTION

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] like Figure 1 As shown, this embodiment provides a dual-path detonation fusion anti-overload detonation sequence, which consists of five levels of pyrotechnics. The first level pyrotechnic is an electric detonator 1, the second level pyrotechnic is a detonating charge 2, the third level pyrotechnic is a relay charge 3, the fourth level pyrotechnic is a detonation charge 4, and the fifth level pyrotechnic is a booster charge 5. These five levels of pyrotechnics together constitute the detonation sequence.

[0022] The electric detonator 1 is a pre-designed product, fixed to the main body with adhesive. After firing, the fuse operates according to a preset program, supplying power to the electric detonator 1 to detonate it. A ignition hole is provided between the electric detonator 1 and the detonating charge 2 on the main body. The energy from the detonation of the electric detonator 1 is transferred through the ignition hole, detonating the detonating charge 2. The detonating charge 2 is a cylindrical charge with a buffer pad added to its end face. A detonating tube shell 6 is designed for protection. The detonating tube shell 6 is threaded and screwed into the rotor. A ignition hole is provided below the detonating charge 2 in the rotor. The energy from the detonation of the detonating charge 2 is transferred through the ignition hole, detonating the relay charge 3. The relay charge 3 is also a cylindrical charge with a buffer pad added to its end face. A tube shell 7 is designed for the relay charge. The casing 7 is designed with threads for connection to other components; two relay charge 3s are mounted above the detonating charge 4, which can directly detonate the detonating charge 4 upon detonation; the detonating charge 4 is a cylindrical charge with a buffer pad added to the end face, and the charge is protected by a detonating casing 8; the detonating casing 8 is designed with threads for connection to other components; the detonating charge 4 is mounted above the expanding charge 5, which can directly detonate the expanding charge 5 upon detonation; the expanding charge 5 is a cylindrical charge with a buffer pad added to the end face, the surface of the charge is covered with adhesive, and the charge is protected by a expanding casing 9; the expanding casing 9 is designed with threads for connection to other components.

[0023] The first-stage pyrotechnic device in this detonation sequence uses an electric detonator, which improves overload resistance and eliminates the need for additional buffer design, simplifying the process. The second-stage pyrotechnic device uses a detonating charge instead of a flame detonator, improving sealing, reducing environmental impact, and extending storage life. The third-stage pyrotechnic device uses a cylindrical charge design, improving manufacturability and avoiding defects such as uneven charge density, sharp edges, and breakage, thus enhancing overload resistance. All charges are protected by a metal shell, and buffer pads are added to the end faces of the charges for cushioning, improving the detonation sequence's resistance to large overloads. The fifth-stage pyrotechnic device, the expander charge, features an encapsulation design, further enhancing its resistance to large overloads and ensuring its stability under such conditions.

[0024] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual-path detonation fusion anti-large overload detonation transmission sequence, characterized in that: It includes a main body and a fifth-level explosive device installed on the main body; The first-level pyrotechnics are electric detonators, and the second, third, fourth and fifth-level pyrotechnics are detonating charge columns, relay charge columns, transfer charge columns and expansion charge columns respectively. All charge columns are protected by metal shells, and buffer pads are set on the end faces of the charge columns.

2. A dual-path detonation fusion anti-large overload detonation transmission sequence according to claim 1, characterized in that: The electric detonator is fixed on the body by glue, and fire transfer holes are provided on the upper and lower parts of the two detonating charge columns. The energy of the electric detonator detonation is transferred to detonate the detonating charge column through the fire transfer holes, and the energy of the detonating charge column detonation is transferred to detonate the relay charge column through the fire transfer holes.

3. A dual-path detonation fusion anti-large overload detonation transmission sequence according to claim 1, characterized in that: The two relay charge columns are aligned and installed above the booster charge column, and the booster charge column is aligned and installed above the expansion charge column.

4. A dual-path detonation fusion anti-large overload detonation transmission sequence according to claim 1, characterized in that: The surface of the explosive column is coated with glue.

5. A dual-path detonation fusion anti-large overload detonation transmission sequence according to claim 1, characterized in that: The metal shell is designed with connecting threads.

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