Disposable firing device of electric trigger

Abstract

The utility model provides a disposable percussion device of an electric initiator, relates to the technical field of striking tools, solves the problem that an electromagnetic percussion device cannot meet the disposable percussion work in special environments such as a nuclear power station, and also solves the problems that the electromagnetic percussion device is large in size and difficult to install. The disposable firing device of the electric initiator comprises a protection structure with openings in the two ends; the ignition device is positioned in the protection structure and extends out along one end; the combustible material is positioned in the cavity of the protection structure; and the piston firing pin is adjacent to the first end of the combustible material. According to the technical scheme, radiation resistance and electromagnetic interference resistance are achieved, one-time percussion work such as impacting and puncturing can be normally carried out in special environments such as a nuclear power station, and due to the fact that the percussion device is small in size and convenient to install, the percussion device can be suitable for being installed in a narrow space where numerous large-size percussion devices cannot be installed. And a convenient one-time percussion mode is provided for diversified percussion demand scenes.

Description

Technical Field

[0001] This utility model relates to the field of striking tools, and in particular to a disposable firing device for an electric initiator. Background Technology

[0002] Existing firing devices are generally electromagnetically driven. These devices, when powered on, use the electromagnetic force generated by a coil to drive a firing pin to achieve impact and piercing. However, in special environments such as nuclear power plants, these devices are more susceptible to nuclear radiation and electromagnetic interference, making it difficult to meet the requirements for low error rates and high performance. Furthermore, achieving greater impact force with electromagnetically driven firing devices requires increased current and electromagnetic coils, often resulting in larger footprints and inconvenient installation. Utility Model Content

[0003] This invention provides a one-time firing device for an electric initiator, which solves the problem that electromagnetic firing devices cannot meet the one-time firing requirements in special environments such as nuclear power plants. It also solves the problems of large size and difficult installation of electromagnetic firing devices.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model embodiment provides a one-time firing device for an electric initiator, comprising:

[0006] A protective structure with openings at both ends;

[0007] An ignition device located inside the protective structure and extending out from one end;

[0008] Combustible materials located within the cavity of the protective structure;

[0009] Piston firing pin adjacent to the first end of the combustible material.

[0010] Optionally, the protective structure includes:

[0011] A hollow shell;

[0012] An insulating protective sleeve is inserted into the housing at one end.

[0013] Optionally, the housing and the insulating protective sleeve are sealed together.

[0014] Optionally, the first end of the housing is provided with threads.

[0015] Optionally, the ignition device includes:

[0016] Parallel dual electric ignition heads are installed on the inner wall of the cavity of the protective structure;

[0017] The wires fixedly connected to the parallel dual electric ignition heads;

[0018] A shielding sheath fitted over the outer surface of the conductor.

[0019] Optionally, the conductor and the shielding sheath penetrate the insulating protective sleeve and extend outward through the end opening.

[0020] Optionally, the shielding sleeve and the insulating protective sleeve are sealed together.

[0021] Optionally, the piston firing pin includes:

[0022] The main body portion adjacent to the first end of the combustible material;

[0023] A firing part is slidably connected to the opening at the first end of the housing, and the firing part is integrally formed with the body.

[0024] Optionally, the main body and the internal cavity of the protective structure form a sealed structure, and the main body slides within the housing.

[0025] Optionally, the inner diameter of the cross-section of the body portion is larger than the cross-sectional diameter of the firing portion.

[0026] The above-described solution of this utility model has at least the following beneficial effects:

[0027] The disposable firing device for the electric initiator described in this utility model comprises a protective structure with openings at both ends; an ignition device located inside the protective structure and extending out from one end; a combustible material located within the cavity of the protective structure; and a piston firing pin adjacent to the first end of the combustible material. This achieves resistance to radiation and electromagnetic interference, enabling normal one-time firing operations such as impact and puncture in special environments such as nuclear power plants. Furthermore, due to its compact size and easy installation, it can also be used in confined spaces where many larger firing devices cannot be installed, providing a convenient one-time firing method for diverse firing needs. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of the disposable firing device of the electric initiator according to an embodiment of the present invention.

[0029] The components are: 1. Shell; 2. Piston firing pin; 3. Combustible material; 4. Parallel dual electric ignition head; 5. Insulating protective sleeve; 6. Wire; 7. Shielding sleeve; 8. Protective structure; 9. Ignition device; 10. Body; 11. Firing part. Detailed Implementation

[0030] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0031] like Figure 1 As shown, an embodiment of this utility model provides a one-time firing device for an electric initiator, comprising:

[0032] 8. A protective structure with openings at both ends;

[0033] An ignition device 9 is located inside the protective structure 8 and extends out from one end;

[0034] Combustible material 3 located within the cavity of the protective structure 8;

[0035] Piston pin 2 adjacent to the first end of the combustible material 3.

[0036] In this embodiment, the protective structure 8 has circular openings at both ends. The ignition device 9 is installed inside the protective structure 8 and extends out through one opening. The combustible material 3 is located in the internal cavity of the protective structure 8, and the piston pin 2 is located at the other end of the protective structure 8, adjacent to the combustible material 3. The device is electrically activated, connecting the ignition device 9 to its rated voltage and current, causing the combustible material 3 to burn and produce gas, which in turn drives the piston pin 2 to complete the impact and puncture work. Therefore, it has greater environmental versatility and lower requirements, and can be applied in more special environments.

[0037] like Figure 1 As shown, in an optional embodiment of the present invention, the protective structure 8 includes:

[0038] A hollow shell 1;

[0039] An insulating protective sleeve 5 is inserted into the housing 1 at one end;

[0040] The housing 1 and the insulating protective sleeve 5 are sealed together.

[0041] In this embodiment, the housing 1 and the insulating protective sleeve 5 are connected by a snap-fit. Since the gas propulsion during the device startup process is an inevitable step, it is essential to ensure that the housing 1 and the insulating protective sleeve 5 are sealed to prevent gas from escaping from the component connection in the middle of the protective structure 8, which could lead to device failure.

[0042] like Figure 1As shown, in an optional embodiment of the present invention, the first end of the housing 1 is provided with a thread.

[0043] In this embodiment, the outer surface of the first end of the housing 1 is provided with threads, and the device can be installed in different applicable positions through the threads.

[0044] like Figure 1 As shown, in an optional embodiment of the present invention, the ignition device 9 includes:

[0045] Parallel dual electric ignition heads 4 are installed on the inner wall of the cavity of the protective structure 8;

[0046] The wire 6 is fixedly connected to the parallel dual electric ignition head 4;

[0047] A shielding sleeve 7 is fitted onto the outer surface of the conductor 6;

[0048] The conductor 6 and the shielding sheath 7 pass through the insulating protective sheath 5 and extend outward through the end opening;

[0049] The shielding sleeve 7 and the insulating protective sleeve 5 are sealed together.

[0050] In this embodiment, the ignition device 9 includes the parallel dual-electric ignition head 4, the wire 6, and the shielding sleeve 7. The parallel dual-electric ignition head 4 generates heat through the electrical energy transmitted by the wire 6. The shielding sleeve 7 is used to wrap the wire 6 to achieve an insulation and protection effect. To achieve a sealed environment inside the cavity of the protective structure 8, the shielding sleeve 7 is sealed to the insulating protective sleeve 5, ensuring that the internal sealed space is not damaged while transmitting electrical energy to the parallel dual-electric ignition head 4, thereby ensuring that the device can work normally.

[0051] like Figure 1 As shown, in an optional embodiment of the present invention, the piston striking pin 2 includes:

[0052] The main body portion 10 adjacent to the first end of the combustible material 3;

[0053] A firing part 11 is slidably connected to the first end opening of the housing 1, and the firing part 11 is integrally formed with the body part 10;

[0054] The inner diameter of the cross-section of the main body 10 is larger than the cross-sectional diameter of the firing part 11.

[0055] In this embodiment, the firing part 11 of the piston firing pin 2 is slidably connected to the first end opening of the housing 1. The diameter of the firing part 11 is the same as the diameter of the opening at the first end of the housing 1. The diameter of the body part 10 is the same as the diameter of the internal channel of the housing 1. The firing part 11 and the body part 10 are integrally formed.

[0056] like Figure 1 As shown, in an optional embodiment of the present invention, the main body 10 and the internal cavity of the protective structure 8 form a sealed structure, and the main body 10 slides within the housing 1.

[0057] In this embodiment, the surface of the body part 10 is smooth and its shape perfectly matches the shape of the internal channel of the protective structure 8, thereby achieving a sealing effect. This allows the internal air pressure of the cavity to continuously increase after the combustion gas appears, thereby pushing the piston pin 2 to slide outward.

[0058] The above embodiments of this utility model are made of simple materials and are applicable to a wide range of scenarios. Gas is generated after electric ignition, and the pressure difference between the inside and outside of the device drives the firing pin to complete the impact and puncture task. It can generally be used in conjunction with a fusible valve. Due to its compact size and easy installation, it can be used in more relatively confined spaces. Furthermore, its excellent radiation resistance and electromagnetic interference resistance make it suitable for various special working environments, including nuclear power plants, ensuring a low failure rate and high-performance one-shot firing effect under special conditions.

[0059] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A disposable firing device for an electric initiator, characterized in that, include: A protective structure with openings at both ends (8); An ignition device (9) located inside the protective structure (8) and extending out from one end; Combustible material (3) located within the cavity of the protective structure (8); Piston pin (2) adjacent to the first end of the combustible material (3).

2. The one-time firing device for the electric initiator according to claim 1, characterized in that, The protective structure (8) includes: A hollow shell (1); An insulating protective sleeve (5) is inserted into the housing (1) at one end.

3. The one-time firing device for the electric initiator according to claim 2, characterized in that, The housing (1) and the insulating protective sleeve (5) are sealed together.

4. The one-time firing device for the electric initiator according to claim 2, characterized in that, The first end of the housing (1) is threaded.

5. The one-time firing device for the electric initiator according to claim 1, characterized in that, The ignition device (9) includes: Parallel double electric ignition heads (4) are installed on the inner wall of the cavity of the protective structure (8); The wire (6) is fixedly connected to the parallel dual electric ignition head (4); A shielding sheath (7) is fitted over the outer surface of the conductor (6).

6. The one-time firing device for the electric initiator according to claim 5, characterized in that, The conductor (6) and the shielding sheath (7) pass through the insulating protective sleeve (5) and extend outward through the end opening.

7. The one-time firing device for the electric initiator according to claim 6, characterized in that, The shielding sleeve (7) and the insulating protective sleeve (5) are sealed together.

8. The one-time firing device for the electric initiator according to claim 1, characterized in that, The piston striker (2) includes: The body part (10) adjacent to the first end of the combustible material (3); A firing part (11) is slidably connected to the first end opening of the housing (1), and the firing part (11) is integrally formed with the body part (10).

9. The one-time firing device for the electric initiator according to claim 8, characterized in that, The main body (10) and the internal cavity of the protective structure (8) form a sealed structure, and the main body (10) slides within the housing (1).

10. The one-time firing device for the electric initiator according to claim 8, characterized in that, The inner diameter of the cross-section of the main body (10) is larger than the cross-sectional diameter of the firing part (11).

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