CN221099533U - Steel dampproof plug for bullet - Google Patents
Steel dampproof plug for bullet Download PDFInfo
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- CN221099533U CN221099533U CN202323031354.6U CN202323031354U CN221099533U CN 221099533 U CN221099533 U CN 221099533U CN 202323031354 U CN202323031354 U CN 202323031354U CN 221099533 U CN221099533 U CN 221099533U
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- moistureproof
- dampproof
- moisture
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Abstract
The utility model discloses a steel dampproof plug for a bullet, and belongs to the technical field of special bullet design. The upper plane of the moistureproof plug is of a full-plane structure, and the wrench groove of the moistureproof plug is of a through groove design, so that the moistureproof plug can be unscrewed by using a tool; the design pitch and the screwing-in depth of the moisture-proof plug thread are consistent with or larger than those of the fuse thread, so that the fuse can be screwed in place smoothly after the moisture-proof plug is unscrewed; the excircle of the moistureproof plug is designed into reticulate patterns, so that the moistureproof plug is convenient to rotate manually; the upper end of the inner cavity of the moistureproof plug is conical, and the lower end of the inner cavity of the moistureproof plug is cylindrical, so that the moistureproof plug is convenient to directly process by using a drill bit; the moisture-proof gasket groove is consistent with the moisture-proof gasket in size. The utility model considers that the moisture-proof plug has enough strength, adopts No. 45-60 round steel, is integrally formed, has simple processing technology and low cost, and all test results meet the use requirements of sealing long storage of products.
Description
Technical Field
The utility model belongs to the technical field of special bullet design, and particularly relates to a steel dampproof plug for a bullet, which is applied to special bullets such as a lighting bullet, a smoke bullet, a combustion bullet and the like, namely, the structural design of effectively sealing the bullet opening can be ensured under the conditions of natural environment and slow release gas release in the bullet in the long storage process of the bullet.
Background
Most special ammunition is an air-opening ammunition, the action process is that a fuze acts to ignite a projectile cartridge, and the projectile cartridge generates high-temperature and high-pressure gas to shear a connecting pin or threads of the bottom of the ammunition and the ammunition body and simultaneously ignites an action unit to throw the ammunition. Most of the propellant bags are black gunpowder bags, and the black gunpowder has strong hygroscopicity, so the main function of the moisture-proof plug of the special bullet is sealing, and the purpose of preventing the black gunpowder from being damped and losing efficacy in the long storage process of ammunition is achieved. The ammunition design is that the rubber dampproof rubber ring is added in the convex edge groove of the dampproof plug, and the dampproof plug can ensure that the dampproof gasket reliably plays a sealing role only by applying a certain screwing moment during assembly.
Before 1998, the execution standard of the moistureproof plug for bullet was weapon industry department standard WJ1534-84 general technical Condition for moistureproof plug, and the material was A1-1501 black phenolic plastic powder. The moistureproof plug is formed by thermosetting, and has the problems of edge collapse of a wrench groove and difficult unscrewing in use (the moistureproof plug structure is shown in figure 1). Since 1998, the execution standard of the moistureproof plug was changed to QXJ1997-1 general technical Condition for moistureproof plugs, the material is polycarbonate material, and the molding process is injection molding. In 2003, the execution standard of the moistureproof plug is changed into GJB4374-2002 general Specification for moistureproof plug for bullet, the moistureproof plug is still made of polycarbonate, and the molding process is injection molding. The polycarbonate material moisture-proof plug has the problem of cracking to different degrees in use because local deformation generates stress to act for a long time to crack under the action of torque. Cracking of the moisture barrier can lead to loss of seal of the ammunition, and the possibility of failure of the black powder due to moisture (see figure 2 for moisture barrier structure). In order to thoroughly solve the problem of cracking of the dampproof plug, ensure the normal action of ammunition, the design of the dampproof plug is improved, and the dampproof plug is changed into a steel dampproof plug (the dampproof plug structure is shown in figure 3).
Disclosure of Invention
(1) Object of the invention
The utility model aims to design a moistureproof plug with higher stress resistance strength, so as to solve the problem that the plastic moistureproof plug is cracked due to long-term stress caused by local deformation under the action of torque. Ensure the reliable sealing of ammunition and provide guarantee for the normal action of ammunition.
(2) Technical proposal
1. The steel dampproof plug for the bullet is characterized by comprising a dampproof plug upper plane, a dampproof plug wrench groove, dampproof plug threads, a dampproof plug excircle, a dampproof plug inner cavity and a dampproof gasket groove;
The upper plane of the moistureproof plug is of a full-plane structure, and the moistureproof plug wrench groove is of a through groove design, so that the moistureproof plug can be unscrewed conveniently by using a tool;
The design pitch and the screwing-in depth of the moisture-proof plug thread are consistent with or larger than those of the fuse thread, so that the fuse can be screwed in place smoothly after the moisture-proof plug is unscrewed;
The excircle of the moistureproof plug is designed into a reticulate pattern, so that the moistureproof plug is convenient to rotate manually;
the upper end of the inner cavity of the moistureproof plug is conical, and the lower end of the inner cavity of the moistureproof plug is cylindrical, so that the moistureproof plug is convenient to directly process by using a drill bit;
the moisture-proof gasket groove 6 is consistent with the moisture-proof gasket size.
Furthermore, in order to improve the corrosion resistance, the steel dampproof plug for the bullet adopts the same electrophoretic painting mode as the bullet.
Further, the bullet is formed by machining an integral steel dampproof plug structure.
Furthermore, the steel dampproof plug for the bullet is made of steel materials, has strong environmental adaptability and is convenient for service treatment.
(3) The effective benefits are as follows:
the utility model considers that the moistureproof plug has enough strength, and selects No. 45-60 round steel, and the brand has the characteristics of wide material source, convenient purchase, simple processing technology and low cost. The structure moisture-proof plug disclosed by the utility model has the advantages that more than 20 tens of thousands of products are accumulated, the structure moisture-proof plug is applied to product assembly, no quality problem occurs, and each test result meets the use requirement of the sealed long storage of the product.
Drawings
FIG. 1 is a block diagram of a phenolic moisture barrier;
FIG. 2 is a block diagram of a moisture barrier of polycarbonate material;
Fig. 3 is a block diagram of a steel moisture barrier of the present invention.
Wherein, the plane is arranged on the 1-dampproof plug, the wrench groove is arranged on the 2-dampproof plug, the thread is arranged on the 3-dampproof plug, the external circular reticulation is arranged on the 4-dampproof plug, the cavity is arranged on the 5-dampproof plug, and the washer groove is arranged on the 6-dampproof plug
Detailed Description
The present utility model will be described below with reference to the accompanying drawings.
The steel dampproof plug structure is shown in fig. 3, the dampproof plug is formed by machining an integrated structure, the upper plane 1 of the dampproof plug is designed to be a full-plane structure, the wrench groove 2 of the dampproof plug is designed to be a through groove, machining is convenient, and meanwhile the design of the plane structure and the through groove is convenient for unscrewing the dampproof plug by using tools. The design pitch and the screwing-in depth of the moisture-proof plug thread 3 are consistent with those of the fuse thread or the screwing-in depth is larger than that of the fuse thread, so that the fuse can be screwed in place smoothly after the moisture-proof plug is unscrewed. The design of the moisture-proof plug excircle 4 reticulate patterns is convenient for manual rotation. The inner cavity 5 of the moistureproof plug is designed to be conical at the upper end and cylindrical at the lower end, so that the moistureproof plug is convenient to directly process by using a drill bit. The moisture-proof gasket groove 6 is consistent with the moisture-proof gasket dimensions.
The structural design of the steel dampproof plug refers to WJ 1543-84 general technical conditions for dampproof plugs, GJB 4374-2002 general specifications for dampproof plugs for bullet and arrow. By combining the characteristics of the special bullet and manufacturability of manufacturing the steel dampproof plug, the structure of the steel dampproof plug is correspondingly adjusted relative to the plastic dampproof plug, and on the premise of fully ensuring the structural strength of the dampproof plug, the processing technology of the dampproof plug is simplified, the injection molding dampproof plug inclined plane is eliminated, and the upper plane of the steel dampproof plug is designed to be a full-plane structure; for the convenience of machining, the steel dampproof plug wrench groove is designed as a through groove; in order to ensure that the fuze can be screwed in place smoothly after the moisture-proof plug is unscrewed, the thread length of the steel moisture-proof plug is consistent with the thread length of the fuze; in order to improve the corrosion resistance, the same electrophoretic painting mode as an elastomer is adopted, and the structure of the moistureproof plug is shown in figure 3.
According to the technical scheme, an identification test is carried out on the steel dampproof plug, the tightness of the dampproof plug is verified, 100% tightness test is carried out by using a special tightness test device, the pressure of compressed air for test is 0.6MPa, and the pressure maintaining time is 10s and no air leakage exists. And the salt spray test, the damp heat test, the transportation sealing test, the drop sealing test, the high-low temperature sealing test, the temperature impact sealing test and the vibration sealing test are carried out by referring to GJB4225-2001 grenade setting test procedure, and all test results meet the use requirements of long-term storage of the product seal.
The foregoing is a further detailed description of the invention in connection with specific embodiments, and it is not intended that the invention be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (4)
1. The steel dampproof plug for the bullet is characterized by comprising a dampproof plug upper plane, a dampproof plug wrench groove, dampproof plug threads, a dampproof plug excircle, a dampproof plug inner cavity and a dampproof gasket groove;
The upper plane of the moistureproof plug is of a full-plane structure, and the moistureproof plug wrench groove is of a through groove design, so that the moistureproof plug can be unscrewed conveniently by using a tool;
The design pitch and the screwing-in depth of the moisture-proof plug thread are consistent with or larger than those of the fuse thread, so that the fuse can be screwed in place smoothly after the moisture-proof plug is unscrewed;
The excircle of the moistureproof plug is designed into a reticulate pattern, so that the moistureproof plug is convenient to rotate manually;
the upper end of the inner cavity of the moistureproof plug is conical, and the lower end of the inner cavity of the moistureproof plug is cylindrical, so that the moistureproof plug is convenient to directly process by using a drill bit;
the moisture-proof gasket groove is consistent with the moisture-proof gasket in size.
2. A steel moisture barrier for a projectile in accordance with claim 1, wherein the same electrocoating as the projectile is used for the moisture barrier to enhance corrosion resistance.
3. A steel moisture resistant plug for a bullet as claimed in claim 1 wherein said bullet steel moisture resistant plug integral structure is machined.
4. The steel dampproof plug for the bullet as claimed in claim 1, wherein the steel dampproof plug for the bullet is made of steel materials, and 45-60 round steels are selected, so that the steel dampproof plug for the bullet is high in environmental adaptability and convenient to service treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323031354.6U CN221099533U (en) | 2023-11-09 | 2023-11-09 | Steel dampproof plug for bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323031354.6U CN221099533U (en) | 2023-11-09 | 2023-11-09 | Steel dampproof plug for bullet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221099533U true CN221099533U (en) | 2024-06-07 |
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ID=91316327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323031354.6U Active CN221099533U (en) | 2023-11-09 | 2023-11-09 | Steel dampproof plug for bullet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221099533U (en) |
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2023
- 2023-11-09 CN CN202323031354.6U patent/CN221099533U/en active Active
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