CN215725467U - Split-charging type soft sealing electric initiator - Google Patents
Split-charging type soft sealing electric initiator Download PDFInfo
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- CN215725467U CN215725467U CN202121336321.0U CN202121336321U CN215725467U CN 215725467 U CN215725467 U CN 215725467U CN 202121336321 U CN202121336321 U CN 202121336321U CN 215725467 U CN215725467 U CN 215725467U
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Abstract
The utility model provides a split charging type soft sealing electric initiator, which meets the requirements of high strength, high pressure bearing and high sealing index of the split charging type electric initiator in the aerospace field. The electric detonator comprises a shell A, a sealing ring B and an electrode plug C; the shell A is made of high-strength 05Cr17Ni4Cu4Nb stainless steel, and the inner wall of the shell A is designed with a groove
The sealing groove is used for assembling a sealing ring B; the sealing ring B is made of ethylene propylene rubber and has the size design of
Is assembled to the shellThe body A is arranged in a sealing groove and is matched and sealed with the electrode plug C; the electrode plug C is assembled in the shell A and deforms by extruding the sealing ring B, so that a sealing effect is achieved; and carrying out laser welding on the joint of the end faces of the shell A and the electrode plug C. The utility model has simple structure and easy realization, meets the high strength requirement of the electric detonator, and simultaneously ensures that the electric detonator has higher bearing performance and sealing performance.
Description
Technical Field
The utility model belongs to the technical field of initiating explosive devices, relates to a split charging type soft sealing electric initiator, and particularly relates to a split charging type electric initiator with high strength, high pressure bearing and high sealing performance requirements.
Background
In recent years, with the continuous development of weapon systems, higher requirements are put forward on the structural strength, the pressure-bearing performance and the sealing performance of an electric detonator, and particularly, a novel aerospace initiating explosive device requires that the electric detonator still needs to bear higher working pressure after completing functions. The traditional high-pressure-bearing high-sealing electric detonator mainly adopts a 12Cr18Ni9 stainless steel shell and a contact pin to be integrally sealed, the shell material is difficult to meet the high-strength requirement of the current aerospace and weapon systems on the electric detonator, and the metal material with higher strength is difficult to adopt the integral sealing technology. The split charging type electric detonator can be made of 05Cr17Ni4Cu4Nb stainless steel with high strength or other metal materials with better strength and comprehensive performance, and can meet the requirement of high strength of the electric detonator.
However, the electrode plug and the shell of the traditional split charging type electric initiator are sealed in a laser welding mode, the highest pressure of not more than 10MPa can be borne, leakage is avoided, and the requirements of aerospace and weapon systems on high pressure bearing and high sealing performance of the electric initiator are difficult to meet.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides the split charging type soft sealing electric detonator, which realizes the high strength, high pressure bearing and high sealing performance of the split charging type electric detonator and meets the performance index requirements of the field of aerospace and weapon systems on the high strength, high pressure bearing and high sealing of the split charging type electric detonator.
The utility model adopts the technical scheme that the split charging type soft sealing electric detonator comprises a shell A, a sealing ring B and an electrode plug C, wherein the electrode plug C is assembled in the shell A and deforms by extruding the sealing ring B; and carrying out laser welding on the joint of the end faces of the shell A and the electrode plug C.
The shell A can be made of high-strength 05Cr17Ni4Cu4Nb stainless steel or other metal materials with better strength and comprehensive performance, the requirement of the electric detonator on high strength is met, and a sealing groove with the size of
For assembling the sealing ring B;
the material of the sealing ring B can be ethylene propylene rubber with the size of
And the electrode plug is assembled in the sealing groove of the shell A and is matched and sealed with the electrode plug C.
A chamfer C0.5mm is formed at one end of the circumferential surface of the electrode plug C, which is close to the long insertion needle, so that the electrode plug C is easily arranged in the shell A without damaging the sealing ring B, and the circumferential surface is matched with the shell A to extrude the sealing ring B to deform so as to seal high-pressure gas; and the seam between the shell A and the end face of the electrode plug C is subjected to laser welding, so that the sealing performance of the electric detonator is improved, and the requirements of high pressure bearing and high sealing performance of the electric detonator are met.
The beneficial effects of the utility model are shown in the following aspects:
(1) by adopting the split charging type soft sealing electric detonator, various high-strength metal materials which are difficult to be used for integral sealing can be selected as the electric detonator shell, so that the high-strength requirement of the electric detonator is met;
(2) by adopting the split charging type soft sealing electric detonator, the electric detonator can bear 40MPa/2min of air pressure without leakage through the extrusion deformation of the sealing ring, so that the pressure bearing performance of the split charging type electric detonator is improved;
(3) by adopting the split charging type soft sealing electric initiator, the helium mass spectrum leakage rate can reach 10 through the sealing ring soft sealing and laser welding technology-10Pa.m3Class/s, relatively conventional split-charging electric detonator 10-8Pa.m3The leakage rate of the/s level improves the sealing performance of the split charging type electric detonator;
(4) the key point of the utility model is that the requirements of high pressure bearing and high sealing performance are met by extruding the deformation of the sealing ring; meanwhile, the split charging type electric initiator made of high-strength metal shell materials can meet the requirement of high strength.
Drawings
FIG. 1 is a schematic structural diagram of a split charging type soft sealing electric initiator according to the present invention;
FIG. 2 is a schematic structural diagram of a housing A according to the present invention;
FIG. 3 is a schematic structural view of a seal ring B according to the present invention;
fig. 4 is a schematic structural view of an electrode plug C according to the present invention.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in figure 1, the utility model relates to a split charging type soft sealing electric detonator, which comprises a shell A, a sealing ring B and an electrode plug C.
As shown in fig. 2, the shell a is made of a high-strength 05Cr17Ni4Cu4Nb stainless steel material, which has high strength and mechanical properties such as creep limit, and after solution aging treatment according to the corresponding heat treatment specification, the tensile strength can be not less than 1000MPa, and the hardness is not less than 30 HRC;
inner wall of shell A
The circumferential surface is provided with a channel
For assembling the sealing ring B.
As shown in fig. 3, the sealing ring B is made of an ethylene propylene rubber material, and the material can resist the temperature of-50 to 150 ℃ and has good temperature resistance; seal ring B size selection mark according to aerospace seal ringQuasi design is as
And the electrode plug is assembled in the sealing groove of the shell A and is matched and sealed with the electrode plug C.
As shown in FIG. 4, the outer diameter of the electrode plug C is designed to be
And the inner wall of the shell A
Circumferential surface matching; the peripheral surface of the electrode plug C is chamfered by C0.5 at one end close to the long insertion needle, and the electrode plug C is easy to be arranged in the shell A without damaging the sealing ring B.
The electrode plug C is assembled in the shell A and deforms by extruding the sealing ring B, so that a sealing effect is achieved; and the seam between the end surfaces of the shell A and the electrode plug C is subjected to laser welding to improve the sealing performance of the electric detonator.
The split charging type soft sealing electric initiator has high strength performance, realizes high pressure bearing and high sealing performance by selecting high-strength shell materials, mainly realizes the deformation of the extrusion sealing ring, and improves the sealing performance by laser welding.
Claims (5)
1. The utility model provides a split charging type soft seal electric detonator which characterized in that: comprises a shell A, a sealing ring B and an electrode plug C; the electrode plug C is assembled in the shell A and deforms by extruding the sealing ring B; and carrying out laser welding on the joint of the end faces of the shell A and the electrode plug C.
2. The split charging type soft sealing electric initiator according to claim 1, characterized in that:
the shell A is made of 05Cr17Ni4Cu4Nb stainless steel, and a sealing groove of 2.2mm multiplied by phi 9.8mm is formed in the inner wall of the shell A and used for assembling the sealing ring B.
3. The split charging type soft sealing electric initiator according to claim 1, characterized in that:
the sealing ring B is made of ethylene propylene rubber, has the size of phi 7mm multiplied by 1.8mm in height, is assembled in the sealing groove of the shell A and is matched and sealed with the electrode plug C.
4. The split charging type soft sealing electric initiator according to claim 1, characterized in that:
and the peripheral surface of the electrode plug C is chamfered by 0.5mm at one end close to the long insertion needle.
5. The split charging type soft sealing electric initiator according to claim 1, characterized in that:
the outer diameter of the electrode plug C is phi 7.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121336321.0U CN215725467U (en) | 2021-06-16 | 2021-06-16 | Split-charging type soft sealing electric initiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121336321.0U CN215725467U (en) | 2021-06-16 | 2021-06-16 | Split-charging type soft sealing electric initiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725467U true CN215725467U (en) | 2022-02-01 |
Family
ID=80043016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121336321.0U Expired - Fee Related CN215725467U (en) | 2021-06-16 | 2021-06-16 | Split-charging type soft sealing electric initiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725467U (en) |
-
2021
- 2021-06-16 CN CN202121336321.0U patent/CN215725467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |