A contact-type electric explosive device resistance testing process device

Abstract

A contact type electric detonator resistance testing process device relates to an electric detonator process device, and an upper plate (1), front and back side plates (3), a left side plate (5), a lower plate (6) and a right side plate (10) form a closed danger prevention space; the upper plate (1) is drilled with a large hole with a diameter of R4.5 mm on the right side of the center position of an insulating sleeve (4) and a small hole with a diameter of R3 mm on the left side, a bevel groove is milled on the left side of the large hole with a width of 6.5 mm, and the bevel groove is connected with the small hole to form a through hole; the large hole is used for loading the contact type electric detonator (11) into the danger prevention space, the small hole is used for fixing the positive electrode of the contact type electric detonator (11) and is communicated with a positive electrode lead wire (9); an insulating seat (7) is fixed on the lower plate (6) of the danger prevention space by a bolt (2), and a blind hole is drilled in the center position of the insulating seat (7) to install a probe (8). The device solves the safe inspection of the resistance of the contact type electric detonator (11) and guarantees the production quality of the electric detonator.

Description

Technical Field

[0001] This utility model relates to a pyrotechnics process device, and more particularly to a contact-type pyrotechnics resistance testing process device. Background Technology

[0002] A resistance testing fixture for pyrotechnics is an important means of verifying their quality. Currently, conventional pyrotechnics with leads can be directly connected to a resistance tester using the leads. However, there is no suitable resistance testing fixture for existing contact-type pyrotechnics.

[0003] Therefore, the existing resistance testing fixtures for contact-type pyrotechnics currently have the following problems that urgently need to be solved:

[0004] 1. Safety space with protection against hazards: If an explosion occurs during resistance testing of pyrotechnics, the operator will be guaranteed not to be injured.

[0005] 2. Ensure that the positive and negative terminals of the contact-type pyrotechnic device are in effective contact with the two wires through the tooling.

[0006] 3. The resistance testing fixture for this contact-type pyrotechnic should be easy to operate and improve work quality and efficiency. Summary of the Invention

[0007] The purpose of this utility model is to provide a contact-type pyrotechnic resistance testing process device. The utility model tooling ensures that the positive and negative terminals of the contact-type pyrotechnic are in effective contact with the two wires through the tooling, avoiding the explosion of the pyrotechnic during resistance testing, solving the problem of safe resistance testing of contact-type pyrotechnics, and ensuring the production quality of pyrotechnics.

[0008] The objective of this utility model is achieved through the following technical solution:

[0009] A contact-type pyrotechnic resistance testing device includes an upper plate, bolts, front and rear side plates, an insulating sleeve, a left side plate, a lower plate, an insulating base, a probe, a wire, and a right side plate. The upper plate, front and rear side plates, left side plate, lower plate, and right side plate form a sealed, protected space. A large hole (R4.5mm) is drilled on the right side of the center of the insulating sleeve on the upper plate, and a small hole (R3mm) is drilled on the left side. A 6.5mm wide beveled groove is milled to the left of the large hole, connecting to the small hole to form a through hole. The large hole is for inserting the contact-type pyrotechnic into the protected space, and the small hole is for fixing the positive electrode of the contact-type pyrotechnic and is connected to the positive electrode wire. The insulating base is bolted to the lower plate of the protected space. A blind hole is drilled in the center of the insulating base to install the probe. A semi-grooved section is formed on the side of the insulating base, where one end of another wire is welded to the probe, and the other end extends from the semi-grooved section on the side of the insulating base, passing through the small hole on the left side plate and extending out of the protected space to form the negative electrode. The insulating sleeve is fixed between the insulating base and the upper plate, forming an insulating space.

[0010] The advantages and effects of this utility model are:

[0011] This invention ensures that the positive and negative terminals of the contact-type pyrotechnic device are effectively in contact with the two wires through the tooling, preventing the pyrotechnic device from exploding during resistance testing and protecting the operator from injury. This invention simplifies the resistance testing process for contact-type pyrotechnic devices, improving work quality and efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the contact-type fire-resistant test fixture of this utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the contact-type pyrotechnic product of this utility model;

[0014] Figure 3 This is a schematic diagram of the upper plate component structure of this utility model;

[0015] Figure 4 This is a cross-sectional view of the upper plate component of this utility model.

[0016] Components in the diagram: 1. Upper plate, 2. Bolt, 3. Front and rear side plates, 4. Insulating sleeve, 5. Left side plate, 6. Lower plate, 7. Insulating base, 8. Probe, 9. Wire, 10. Right side plate, 11. Contact-type pyrotechnic device. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings.

[0018] This utility model includes an upper plate 1, bolts 2, front and rear side plates 3, insulating sleeves 4, left side plate 5, lower plate 6, insulating base 7, probe 8, wire 9, right side plate 10, and a contact-type pyrotechnic device 11. The upper plate, lower plate, left side plate, right side plate, and front and rear side plates (six 10mm thick stainless steel plates) are bolted together to form a sturdy square safety space. An M5 bolt is screwed onto the outside of the right side plate of the safety space and welded securely to one end of a wire. The safety space, bolt, and wire constitute the positive electrode. A 4.5mm R hole is drilled on the right side of the center position of the insulating sleeve on the upper plate, and a 3mm R hole is drilled on the left side. A 6.5mm wide beveled groove is milled to the left of the large hole and connects to the small hole to form a through hole. The contact-type pyrotechnic device is inserted into the safety space through the large hole, and the small hole is used to fix the positive electrode position of the contact-type pyrotechnic device. The positive electrode of the contact-type pyrotechnic device is connected to the wire through the safety space and bolt. An insulating base, insulating sleeve, and probe are installed within the safety space. The insulating base is bolted to the lower plate of the safety space. A blind hole is drilled in the center of the insulating base to install the probe. A semi-grooved section is made on the left side of the insulating base, and one end of another wire is soldered to the probe. The other end of the wire extends from the semi-grooved section on the side of the insulating base, then through a small hole on the left side plate and out of the safety space, forming the negative electrode. An insulating sleeve is fixed between the insulating base and the upper plate, forming an insulating space.

[0019] During operation, first insert the negative terminal of the contact-type pyrotechnic device 11 to be tested downwards through the R4.5mm hole on the upper plate 1, until the negative terminal contacts the probe 8. When the probe 8 is pressed to its maximum deformation, tilt the positive terminal of the contact-type pyrotechnic device 11 towards the R3mm hole. The positive terminal of the contact-type pyrotechnic device 11 will be stuck and not move. Release the contact-type pyrotechnic device 11. Then connect the positive and negative terminals of the wire 9 on the resistance testing fixture to the resistance tester. The resistance of the contact-type pyrotechnic device 11 can be read from the resistance tester panel. After the resistance test is completed, disconnect the wire 9 from the resistance tester. Bend the positive terminal of the contact-type pyrotechnic device 11 from the R3mm hole back to the R4.5mm hole and remove the contact-type pyrotechnic device 11 from the safety space. Repeat the above actions to complete the resistance test of the contact-type pyrotechnic device.

Claims

1. A contact-type flame-retardant resistance testing device, characterized in that, The device includes an upper plate (1), bolts (2), front and rear side plates (3), insulating sleeve (4), left side plate (5), lower plate (6), insulating seat (7), probe (8), wire (9), and right side plate (10); the upper plate (1), front and rear side plates (3), left side plate (5), lower plate (6), and right side plate (10) form a sealed and safe space; the upper plate (1) has a large hole with an R4.5mm diameter drilled on the right side of the center position of the insulating sleeve (4), and a small hole with an R3mm diameter drilled on the left side. A 6.5mm wide inclined groove is milled on the left side of the large hole and connected to the small hole to form a through hole; the large hole is a contact-type pyrotechnic device. (11) The small hole is the positive position of the fixed contact pyrotechnic (11) and is connected to the positive wire (9); the insulating seat (7) is fixed to the lower plate (6) of the protective space with bolts (2); a blind hole is drilled in the center of the insulating seat (7) to install the probe (8); the side of the insulating seat (7) is half-grooved, and one end of another wire (9) is welded to the probe, and the other end extends out from the half-grooved side of the insulating seat (7) and extends out of the protective space through the small hole on the left side plate (5) to form the negative pole; the insulating sleeve (4) is fixed between the insulating seat (7) and the upper plate (1) to form an insulating space.

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