CN211259750U - One-way interface gas circuit replacing device - Google Patents
One-way interface gas circuit replacing device Download PDFInfo
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- CN211259750U CN211259750U CN201921834119.3U CN201921834119U CN211259750U CN 211259750 U CN211259750 U CN 211259750U CN 201921834119 U CN201921834119 U CN 201921834119U CN 211259750 U CN211259750 U CN 211259750U
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- pressure valve
- shell
- joint
- casing
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Abstract
The utility model relates to a one-way interface replacing gas circuit device, which comprises a shell, a pressure valve, a spring and a replacing joint; one end of the shell external thread is connected with the replacing joint internal thread, one end of the shell internal thread is connected with the interstage front end system, and one end of the replacing joint external thread is connected with the interstage propulsion system; the casing be the cavity structure that constitutes by last casing and lower casing, pressure valve setting and axial motion in the cavity of casing, the one end of pressure valve and change and connect between the compression and set up the spring, the pressure valve other end is provided with the ring channel, places the nonmetal ring that has the deflection in the groove, nonmetal ring and casing seal lip contact. The utility model connects the air circuits between the three stages of equipment together through the shell and the replacing joint; after the interstage front-end system provides the gas circuit pressure meeting the requirements, the pressure valve pushes, the spring compresses, and the gas circuit system is communicated; when the pressure drops, the device can be automatically closed, and the reliable sealing of the pipeline is ensured.
Description
Technical Field
The utility model relates to an one-way change interface gas circuit device is applicable to the intercommunication and the disconnection of product gas medium folk prescription to.
Background
In some equipment in the aerospace field, during assembly and flight, gas paths between three levels of equipment need to be conducted and closed in a one-way mode, and the fact that the gas path system of the equipment can be conducted when gas media with required pressure and flow are supplied is guaranteed. This requires that the equipment be kept closed at low pressure, and that the gas circuit system be conducted when the inter-stage gas circuit pressure reaches a required value, while the device needs to be adapted to interfaces of different standards. However, there is no replaceable device that meets the requirement in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that exists among the above-mentioned prior art, designed an one-way gas circuit and changed device, solved among the prior art one-way conduction between the tertiary, the problem of sealing the operation difficulty of equipment.
The technical scheme of the utility model as follows:
the one-way interface replacing gas circuit device comprises a shell, a pressure valve, a spring and a replacing joint; one end of the shell external thread is connected with the replacing joint internal thread, one end of the shell internal thread is connected with the interstage front end system, and one end of the replacing joint external thread is connected with the interstage propulsion system; the casing be the cavity structure that constitutes by last casing and lower casing, pressure valve setting and axial motion in the cavity of casing, the one end of pressure valve and change and connect between the compression and set up the spring, the pressure valve other end is provided with the ring channel, places the nonmetal ring that has the deflection in the groove, nonmetal ring and casing seal lip contact.
The pressure valve is of a cavity structure, one end of the pressure valve, which is contacted with the spring, is an opening end, one end of the pressure valve, which is contacted with the shell, is a sealing end, and the side wall of the pressure valve is provided with a gas medium circulation hole.
The sealing end is an integrated structure consisting of a vertical baffle and a transverse baffle, the height of the vertical baffle is greater than the pipe orifice at the joint of the upper shell and the lower shell, and the width of the transverse baffle is less than the pipe orifice at the joint of the upper shell and the lower shell.
And a non-metal sealing ring I is arranged at the joint of the shell and the interstage front end system, and the non-metal sealing ring I forms end face sealing between the shell and the interstage front end system.
The end of the replacement joint connected with the shell is provided with a sealing groove, the nonmetal sealing ring II is embedded into the sealing groove, and the nonmetal sealing ring II forms end face sealing of the shell and the replacement joint.
The replacing joint is of a cavity structure, an inner cavity at one end, connected with the shell, of the replacing joint is a cylindrical cavity, and an inner cavity at one end, connected with the interstage propulsion system, of the replacing joint is a conical surface cavity.
The utility model has the advantages as follows:
the utility model connects the air circuits between the three stages of equipment together through the shell and the replacing joint; the pipeline is sealed by the nonmetal sealing ring, so that the pipeline is closed when the interstage butt joint is carried out, no gas is leaked, and no gas passes through; after the interstage front-end system provides gas circuit pressure meeting the requirements, the one-way replaceable interface gas circuit device is pushed by a pressure valve, a spring is compressed, and the gas circuit system is communicated; when the pressure drops, the device can self-closing, ensures that the pipeline is reliably sealed, embodies:
1. the structure is simple, and the applicability is strong;
2. the whole device does not exceed 1kg, and has small volume, light weight and good processability;
3. the adjustment of related interfaces can meet different structures, and standardization and serialization can be realized;
4. the adjusting spring can meet the requirements of gas circuit systems with different pressure values, and generalization can be realized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the working state of the present invention.
In the figure, 1, a shell, 2, nonmetal sealing rings I and 3, a pressure valve, 4, a spring, 5, nonmetal sealing rings II and 6, a replacement joint, 7, nonmetal rings, 8 and a gas medium circulation hole.
Detailed Description
Examples
As shown in the figure, the one-way replaceable interface air passage device comprises a shell 1, a non-metal sealing ring I2, a pressure valve 3, a spring 4, a non-metal sealing ring II5 and a replacement joint 6; one end of the external thread of the shell 1 is connected with the internal thread of the replacing joint 6, one end of the internal thread of the shell 1 is connected with the interstage front end system, and one end of the external thread of the replacing joint 6 is connected with the interstage propulsion system; the casing be the cavity structure that constitutes by last casing and lower casing, pressure valve 3 sets up in the cavity of casing 1 and axial motion, the one end of pressure valve 3 and change compress between the joint and set up spring 4, the pressure valve 3 other end is provided with the ring channel, places the great nonmetal ring 7 of deflection in the groove, nonmetal ring 7 and the contact of casing 1 seal lip.
The pressure valve 3 is of a cavity structure, one end of the pressure valve 3, which is contacted with the spring 4, is an opening end, one end of the pressure valve 3, which is contacted with the shell 1, is a sealing end, and the side wall of the pressure valve 3 is provided with a gas medium circulation hole.
The sealing end is an integrated structure consisting of a vertical baffle and a transverse baffle, the height of the vertical baffle is greater than the pipe orifice at the joint of the upper shell and the lower shell, and the width of the transverse baffle is less than the pipe orifice at the joint of the upper shell and the lower shell.
And a non-metal sealing ring I2 is arranged at the joint of the shell and the interstage front end system, and the non-metal sealing ring I forms end face sealing between the shell and the interstage front end system.
The one end that change joint and casing be connected be equipped with the seal groove, in non-metallic seal circle II5 embedding seal groove, non-metallic seal circle II formed the casing and changed the end face seal who connects.
The replacing joint is of a cavity structure, an inner cavity at one end, connected with the shell, of the replacing joint is a cylindrical cavity, and an inner cavity at one end, connected with the interstage propulsion system, of the replacing joint is a conical surface cavity.
The utility model is suitable for an one-way conduction and the seal of gas circuit between certain equipment of space flight and aviation field are tertiary, install at interstage butt joint position. During normal assembly and flight, the short circuit is kept closed by the utility model, and the gas medium stops being supplied; when stage front end system provides the gas pressure that meets the requirements, the utility model discloses one-way change interface gas circuit device work, 3 axial motion of pressure valve realize that the pipeline switches on, and the gas circuit system has the gaseous medium supply.
The utility model discloses main theory of operation is: when the two-stage connection of the equipment is carried out, the pressure valve 3 is contacted with the sealing lip on the end face of the inner cavity of the shell 1, so that the sealing of the one-way interface replacing gas circuit device is ensured, the gas medium is not supplied, and the gas medium stays in the outer cavity of the shell 1. When the interstage front end system provides gas pressure meeting the requirements, the pressure valve 3 is pushed by gas, meanwhile, the spring 4 is compressed under the action of the pressure valve 3, the one-way port replacing gas circuit device is conducted, the gas circuit system is conducted, and gas media flow through the one-way port replacing gas circuit device to propel the system.
The direction of the arrows in fig. 2 indicates the direction of flow of the gaseous medium.
The utility model discloses a concrete embodiment and the technical principle who utilizes, any basis the utility model discloses equivalent transform on the technical scheme basis all belongs to within the scope of protection of the utility model.
Claims (6)
1. The one-way interface replacing gas circuit device is characterized by comprising a shell, a pressure valve, a spring and a replacing joint; one end of the shell external thread is connected with the replacing joint internal thread, one end of the shell internal thread is connected with the interstage front end system, and one end of the replacing joint external thread is connected with the interstage propulsion system; the casing be the cavity structure that constitutes by last casing and lower casing, pressure valve setting and axial motion in the cavity of casing, the one end of pressure valve and change and connect between the compression and set up the spring, the pressure valve other end is provided with the ring channel, places the nonmetal ring that has the deflection in the groove, nonmetal ring and casing seal lip contact.
2. The one-way joint replacement air passage device according to claim 1, wherein the pressure valve is a cavity structure, the end of the pressure valve contacting the spring is an open end, the end of the pressure valve contacting the housing is a closed end, and the side wall of the pressure valve is provided with a gas medium circulation hole.
3. The one-way interface replacing air passage device according to claim 2, wherein the sealing end is an integrated structure formed by a vertical baffle and a horizontal baffle, the vertical baffle is higher than the pipe orifice at the joint of the upper shell and the lower shell, and the horizontal baffle is smaller than the pipe orifice at the joint of the upper shell and the lower shell.
4. The one-way interface replacing air passage device according to claim 1, wherein a non-metallic sealing ring I is arranged at the joint of the shell and the interstage front end system, and the non-metallic sealing ring I forms end face sealing between the shell and the interstage front end system.
5. The one-way joint replacement gas circuit device according to claim 1, wherein a sealing groove is formed at one end of the replacement joint connected with the housing, a non-metal sealing ring II is embedded in the sealing groove, and the non-metal sealing ring II forms an end face seal between the housing and the replacement joint.
6. The one-way replacement interface gas circuit device according to claim 1, wherein the replacement connector is a cavity structure, an inner cavity of one end of the replacement connector connected with the housing is a cylindrical cavity, and an inner cavity of one end of the replacement connector connected with the interstage propulsion system is a conical surface cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834119.3U CN211259750U (en) | 2019-10-29 | 2019-10-29 | One-way interface gas circuit replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834119.3U CN211259750U (en) | 2019-10-29 | 2019-10-29 | One-way interface gas circuit replacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259750U true CN211259750U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834119.3U Active CN211259750U (en) | 2019-10-29 | 2019-10-29 | One-way interface gas circuit replacing device |
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| Country | Link |
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| CN (1) | CN211259750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608300A (en) * | 2019-10-29 | 2019-12-24 | 沈阳航天新光集团有限公司 | One-way interface gas circuit replacing device |
-
2019
- 2019-10-29 CN CN201921834119.3U patent/CN211259750U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608300A (en) * | 2019-10-29 | 2019-12-24 | 沈阳航天新光集团有限公司 | One-way interface gas circuit replacing device |
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