CN215928369U - Composite gasket type sealing structure - Google Patents
Composite gasket type sealing structure Download PDFInfo
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- CN215928369U CN215928369U CN202122043439.0U CN202122043439U CN215928369U CN 215928369 U CN215928369 U CN 215928369U CN 202122043439 U CN202122043439 U CN 202122043439U CN 215928369 U CN215928369 U CN 215928369U
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- metal gasket
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Abstract
The utility model provides a composite gasket type sealing structure which comprises a body, a non-metal gasket, a metal gasket and a plug; the body is a hollow revolving body and is provided with a step-variable through hole along the axis; the device comprises a body, a plug cavity, a gasket cavity, a charging cavity and a propellant powder cavity which are sequentially arranged from one end of the body, wherein the four cavities are communicated with each other; the gasket cavity is provided with a non-metal gasket and a metal gasket, the two gaskets are tightly attached, the metal gasket is close to the plug cavity, and the non-metal gasket is close to the charging cavity; and a plug is arranged in the plug cavity and used for fixing the non-metal gasket and the metal gasket. This novel be arranged in producing gas formula initiating explosive device seal structure design, adopt the double gasket seal structure that non-metallic gasket and metal gasket combined together, non-metallic gasket supports intensity height, easy being broken by the gas, and metal gasket sealing performance is high. The composite gasket sealing structure has the advantages of high supporting strength, certain environmental mechanical resistance, easiness in being broken by gas, reliability in gas transmission and good sealing performance.
Description
Technical Field
The utility model belongs to the technical field of initiating explosive devices, and particularly relates to a composite gasket type sealing structure.
Background
At present, the output ends of some domestic gas-producing initiating explosive devices are generally sealed by single metal gaskets, and when the metal gaskets are thick, gas is not easy to break the metal gaskets, so that the normal transmission of the gas is influenced; when the thickness of the metal gasket is too thin, the support strength of the metal gasket is low, and the metal gasket is easy to deform and even damaged under the continuous impact of parts or bulk medicaments which are not fixed, so that the sealing performance of a product is poor.
Disclosure of Invention
The technical problem solved by the utility model is as follows: in order to improve the sealing performance and the fuel gas transmission reliability of the gas-producing initiating explosive device, a composite gasket type sealing structure is provided.
The further technical scheme of the utility model is as follows: a composite gasket type sealing structure comprises a body, a non-metal gasket, a metal gasket and a plug;
the body is a hollow revolving body, and is provided with a step-variable through hole along the axis; the device comprises a body, a plug cavity, a gasket cavity, a charging cavity and a propellant powder cavity which are sequentially arranged from one end of the body, wherein the four cavities are communicated with each other;
the gasket cavity is provided with a non-metal gasket and a metal gasket, the two gaskets are tightly attached, the metal gasket is close to the plug cavity, and the non-metal gasket is close to the charging cavity; and a plug is arranged in the plug cavity and used for fixing the non-metal gasket and the metal gasket.
The further technical scheme of the utility model is as follows: the plug cavity, the gasket cavity and the charging cavity are stepped cavities, wherein the plug cavity is a large-diameter cavity, the charging cavity is a small-diameter cavity, and the gasket cavity is a transition cavity; the inner wall of the large-diameter cavity is provided with internal threads which are in threaded fit with the outer wall of the plug.
The further technical scheme of the utility model is as follows: the non-metal gasket is a circular sheet and is made of celluloid materials.
The further technical scheme of the utility model is as follows: the metal gasket is a circular sheet and is made of an aluminum foil material.
The further technical scheme of the utility model is as follows: the whole plug is a cylindrical body, a through hole is formed along the axis and serves as an exhaust hole, external threads are formed on the outer wall of the plug, and a U-shaped installation wrench groove is formed in one end of the plug, so that the plug can be conveniently screwed into the plug cavity.
The further technical scheme of the utility model is as follows: the nonmetal gasket and the metal gasket are overlapped with the axis of the body, and after the nonmetal gasket and the metal gasket are installed, the nonmetal gasket and the metal gasket are further sealed through sealant.
The further technical scheme of the utility model is as follows: the sealant is silicon rubber.
The further technical scheme of the utility model is as follows: the thickness of the metal gasket is 0.07 +/-0.007 mm.
The further technical scheme of the utility model is as follows: the thickness of the non-metal gasket is 0.3 +/-0.05 mm.
The further technical scheme of the utility model is as follows: the non-metal gasket is used for supporting the impact of bulk medicament on the metal gasket; the metal gasket is used for output end sealing.
Effects of the utility model
The utility model has the technical effects that: the double-gasket sealing structure is used for designing the gas-producing type initiating explosive device sealing structure, adopts the double-gasket sealing structure combining the non-metal gasket and the metal gasket, has high supporting strength of the non-metal gasket, is easy to be broken by gas, and has high sealing performance of the metal gasket. The composite gasket sealing structure has the advantages of high supporting strength, certain environmental mechanical resistance, easiness in being broken by gas, reliability in gas transmission and good sealing performance.
Drawings
FIG. 1 is a schematic view of a composite gasket type sealing structure of the present invention
FIG. 2 is a schematic view of the body structure shown in FIG. 1
FIG. 3 is a schematic view of the non-metallic gasket shown in FIG. 1
FIG. 4 is a schematic view of the metal gasket shown in FIG. 1
FIG. 5 is a schematic view of the plug of FIG. 1
Description of reference numerals: 1. the body, 2, nonmetal gasket, 3, metal gasket, 4, sealed glue, 5, end cap, 2a, powder charge cavity, 2b, pilot hole, 2c, screw hole, 6a, installation spanner groove, 6b, screw thread, 6c, exhaust hole
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-5, a composite gasket type sealing structure includes a body, a non-metallic gasket, a plug and a sealant;
the body be the cylinder, open threaded coaxial shoulder hole on the terminal surface, first shoulder hole is the powder charge cavity for adorn the initiating explosive agent, the second shoulder hole is used for installing non-metallic gasket, metal gasket, the screw hole is used for installing the end cap.
From body one end, be end cap cavity, gasket cavity, powder charge cavity and propellant powder cavity in proper order, and four cavities link up each other, be equipped with the initiating explosive in the powder charge cavity, the propellant powder cavity is equipped with the single base propellant powder, and when the ignition of single base propellant powder produces high energy gas, improve the abundant burning of initiating explosive agent in the powder charge cavity under gas impact, easily export the gas simultaneously.
The non-metal gasket is a circular sheet and plays a supporting role.
The metal gasket is a circular sheet and plays a role in sealing.
The plug is a through hole type cylinder, the outer side of the plug is provided with external threads, and the end face of the plug is provided with a U-shaped installation wrench groove for fixing the non-metal gasket and the metal gasket.
The sealant is silicon rubber and has a sealing effect.
The manufacturing process of the device comprises the following steps: firstly, the non-metal gasket 2 is arranged in the assembly hole 2b of the body 1, then the metal gasket 3 is arranged in the assembly hole 2b of the body 1, then a circle of sealant 4 is coated on the connection part of the metal gasket 3 and the assembly hole 2b of the body 1, and finally, a wrench is used for screwing the thread 6b of the plug 5 into the threaded hole 2c of the body 1 through the plug 5 installation wrench groove 6a and screwing.
The non-metallic shim described in this embodiment is a celluloid material.
The metal gasket described in this embodiment is an aluminum foil material.
The sealant in this embodiment is silicone rubber.
Claims (10)
1. A composite gasket type sealing structure is characterized by comprising a body (1), a non-metal gasket (2), a metal gasket (3) and a plug (5);
the body (1) is a hollow revolving body, and is provided with a step-variable through hole along the axis; the device comprises a body (1), a plug cavity, a gasket cavity, a charging cavity and a propellant powder cavity which are sequentially arranged from one end of the body, wherein the four cavities are communicated with each other;
the gasket chamber is provided with a non-metal gasket (2) and a metal gasket (3), the two gaskets are tightly attached, the metal gasket (3) is close to the plug chamber, and the non-metal gasket (2) is close to the charging chamber; and a plug is arranged in the plug cavity and used for fixing the nonmetal gasket (2) and the metal gasket (3).
2. The composite gasket type sealing structure according to claim 1, wherein the plug chamber, the gasket chamber and the charge chamber are stepped chambers, wherein the plug chamber is a large-diameter chamber, the charge chamber is a small-diameter chamber, and the gasket chamber is a transition chamber; the inner wall of the large-diameter cavity is provided with internal threads which are in threaded fit with the outer wall of the plug (5).
3. A composite gasket type sealing arrangement according to claim 1, wherein said non-metallic gasket (2) is a circular sheet made of celluloid material.
4. A composite gasket-type sealing structure according to claim 1, wherein said metal gasket (3) is a circular piece made of aluminum foil material.
5. A composite gasket-type seal structure according to claim 1, wherein the plug (5) is a cylindrical body, and has a through hole as an exhaust hole along its axis, and an external thread on its outer wall, and has a U-shaped installation wrench slot at one end thereof to facilitate screwing the plug (5) into the plug chamber.
6. A composite gasket type sealing structure according to claim 1, wherein said non-metallic gasket (2) and metallic gasket (3) are axially coincident with the body (1), and further sealed by sealant (4) after installation.
7. A composite gasket-type sealing structure according to claim 6, wherein said sealant (4) is silicone rubber.
8. A composite gasket-type seal structure according to claim 1, wherein said metal gasket (3) has a thickness of 0.07 ± 0.007 mm.
9. A composite gasket-type seal structure according to claim 1, wherein said non-metallic gasket (2) has a thickness of 0.3 ± 0.05 mm.
10. A composite gasket-type seal structure according to claim 1, wherein said non-metallic gasket (2) is adapted to support the impact of the bulk medicament against the metallic gasket (3); the metal gasket (3) is used for sealing the output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043439.0U CN215928369U (en) | 2021-08-27 | 2021-08-27 | Composite gasket type sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122043439.0U CN215928369U (en) | 2021-08-27 | 2021-08-27 | Composite gasket type sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215928369U true CN215928369U (en) | 2022-03-01 |
Family
ID=80422002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122043439.0U Active CN215928369U (en) | 2021-08-27 | 2021-08-27 | Composite gasket type sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215928369U (en) |
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2021
- 2021-08-27 CN CN202122043439.0U patent/CN215928369U/en active Active
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