CN209875984U - Sealing combination device - Google Patents
Sealing combination device Download PDFInfo
- Publication number
- CN209875984U CN209875984U CN201920375088.3U CN201920375088U CN209875984U CN 209875984 U CN209875984 U CN 209875984U CN 201920375088 U CN201920375088 U CN 201920375088U CN 209875984 U CN209875984 U CN 209875984U
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- sealing
- air
- valve core
- valve
- annular
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Abstract
The utility model relates to a sealing combination device, which comprises a valve body, wherein an air cavity is formed in the valve body, an air inlet is arranged at the lower end of the valve body, an air outlet is arranged at the upper end of the valve body, and an air flow channel is formed among the air inlet, the air cavity and the air outlet; the air cavity is internally provided with a valve core assembly in a sliding mode, the upper end of the valve core assembly is connected with the air cavity in a sealing mode, and the lower end of the valve core assembly is provided with a sealing mechanism used for blocking air flow from entering the air cavity from the air inlet. When needing to maintain, the valve core subassembly of sliding downwards and making the sealing mechanism of valve core subassembly lower extreme seal the air inlet to solve when the maintenance, can also carry out the problem of maintaining at the valve that need not close on the intake pipe.
Description
Technical Field
The utility model relates to a sealed composite set.
Background
At the gas on-off position of a medical gas terminal, a DG4 valve is independently installed on a gas inlet pipe of a gas inlet of a sealing combination device, the device needs to be stopped firstly during maintenance, and a DG4 valve on the gas inlet pipe of the gas inlet is closed, so that time and labor are wasted during maintenance, and the working progress is delayed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a sealed combination unit to solve when the maintenance, can also carry out the problem of maintenance at the valve that need not close in the intake pipe.
The utility model provides a technical scheme that its technical problem adopted is:
the sealing combination device comprises a valve body, wherein an air cavity is formed in the valve body, an air inlet is formed in the lower end of the valve body, an air outlet is formed in the upper end of the valve body, and an air flow channel is formed among the air inlet, the air cavity and the air outlet;
the air cavity is internally provided with a valve core assembly in a sliding mode, the upper end of the valve core assembly is connected with the air cavity in a sealing mode, and the lower end of the valve core assembly is provided with a sealing mechanism used for blocking air flow from entering the air cavity from the air inlet.
Further, the valve body comprises a base and a valve seat;
the air inlet is formed in the lower end of the base, and a blind hole is formed in the base;
the air outlet is formed in the upper end of the valve seat, an air vent is formed in the valve seat, and the blind hole is communicated with the air vent to form an air cavity;
the lower end of the valve seat is hermetically arranged in a blind hole of the base.
Further, the valve core assembly comprises a valve core;
the valve core is arranged in the air cavity in a sliding mode, and the upper end of the valve core is connected with the air cavity in a sealing mode.
Further, the sealing mechanism comprises a guide spring;
the lower end of the valve core is provided with a sealing column for blocking the air inlet, the guide spring is sleeved on the sealing column, the lower end of the guide spring is tightly propped against the bottom of the blind hole, and the guide spring is tightly propped against the valve core;
and the lower end face of the blind hole is provided with a pressing thread, and the lower end of the valve core is in threaded connection with the pressing thread.
Furthermore, the lower end of the sealing column is in a circular truncated cone shape, and the inclined plane of the circular truncated cone-shaped sealing column is tightly pressed on the air inlet.
Furthermore, the lower end of the sealing column is provided with an annular guide groove, the upper end face of the guide spring is tightly propped against the bottom of the annular guide groove, and the guide spring can move in the annular guide groove in a telescopic mode.
Further, a first annular sealing groove is formed in the upper end of the valve core, and a first sealing ring is arranged in the first annular sealing groove;
and a sealing step is formed in the vent hole of the valve seat, and the first sealing ring is pressed between the first annular sealing groove and the sealing step to form sealing connection.
Further, a second annular sealing groove is formed in the upper end of the base, and a second sealing ring is arranged in the second annular sealing groove;
the upper end of the blind hole is provided with a sealing thread, the lower end of the valve seat is screwed on the sealing thread, the second sealing ring is tightly pressed between the second annular sealing groove and the lower end surface of the valve seat to form sealing connection,
furthermore, a third annular sealing groove is formed in the inner end face of the vent hole, and a third sealing ring is arranged in the third annular sealing groove.
Furthermore, an air inlet pipe is communicated with the air inlet.
The utility model has the advantages that: when needing to maintain, the valve core subassembly of sliding downwards and making the sealing mechanism of valve core subassembly lower extreme seal the air inlet to solve when the maintenance, can also carry out the problem of maintaining at the valve that need not close on the intake pipe.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is an exploded view of the apparatus of the present invention;
FIG. 2 is a schematic view of the apparatus of the present invention in a gas open state;
FIG. 3 is a schematic view of the apparatus of the present invention in a gas-off state;
wherein; 1. the valve comprises a base, 11, a second sealing ring, 12, an air inlet, 2, a valve seat, 21, an air outlet, 22, a third sealing ring, 3, a valve core, 31, a sealing column, 32, a first sealing ring, 4, a guide spring, 5 and an air inlet pipe.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-3; providing a sealing combination device, which comprises a valve body, wherein the valve body comprises a base 1 and a valve seat 2; the air inlet 12 is formed in the lower end of the base 1, the air inlet 12 is communicated with an air inlet pipe 5, and a blind hole is formed in the base 1; the air outlet 21 is formed in the upper end of the valve seat 2, a vent hole is formed in the valve seat 2, and the blind hole is communicated with the vent hole to form an air cavity; the lower end of the valve seat 2 is hermetically arranged in a blind hole of the base 1. An air cavity is formed in the valve body, an air inlet 12 is formed in the lower end of the valve body, an air outlet 21 is formed in the upper end of the valve body, and an air flow channel is formed among the air inlet 12, the air cavity and the air outlet 21; a valve core assembly is arranged in the air cavity in a sliding mode, the upper end of the valve core assembly is connected with the air cavity in a sealing mode, and a sealing mechanism used for blocking air flow from entering the air cavity from the air inlet 12 is arranged at the lower end of the valve core assembly.
The sealing mechanism comprises a guide spring 4; the lower end of the valve core 3 is provided with a sealing column 31 for blocking the air inlet 12, and in order to better close the air inlet 12, the lower end of the sealing column 31 is in a truncated cone shape, and the inclined surface of the truncated cone-shaped sealing column 31 is tightly pressed on the air inlet 12. The guide spring 4 is sleeved on the sealing column 31, the lower end of the guide spring 4 is tightly propped against the bottom of the blind hole, and the guide spring 4 is tightly propped against the valve core 3; the lower end face of the blind hole is provided with a pressing thread, the lower end of the sealing column 31 is provided with an annular guide groove, the upper end face of the guide spring 4 is tightly propped against the bottom of the annular guide groove, and the guide spring 4 can move in the annular guide groove in a telescopic mode. The guide spring 4 plays a role in ensuring that the terminal can be pulled out and inserted stably without deviating from the sealing cambered surface every time. And the lower end of the valve core 3 is screwed on the pressing thread.
The valve core assembly comprises a valve core 3; the valve core 3 is arranged in the air cavity in a sliding mode, and the upper end of the valve core 3 is connected with the air cavity in a sealing mode. A first annular sealing groove is formed in the upper end of the valve core 3, and a first sealing ring 32 is arranged in the first annular sealing groove; a sealing step is formed in the vent hole of the valve seat 2, and the first sealing ring 32 is compressed between the first annular sealing groove and the sealing step to form sealing connection.
In order to ensure the sealing performance between the base 1 and the valve seat 2, a second annular sealing groove is formed in the upper end of the base 1, and a second sealing ring 11 is arranged in the second annular sealing groove; the upper end of the blind hole is provided with a sealing thread, the lower end of the valve seat 2 is screwed on the sealing thread, the second sealing ring 11 is tightly pressed between the second annular sealing groove and the lower end surface of the valve seat 2 to form sealing connection,
in order to make the terminal end not leak air when being inserted, a third annular sealing groove is formed in the inner end face of the vent hole, and a third sealing ring 22 is arranged in the third annular sealing groove.
In practical operation, the first sealing ring 32 is sleeved at the shoulder of the valve core 3, the guide spring 4 is placed in the base 1, the second sealing ring 11 is also placed in the second annular sealing groove of the base 1, then the valve core 3 is sleeved in the valve seat 2 and screwed into the base 2 together, and finally the third sealing ring 22 is installed;
during the trouble, through the inclined plane and the base hard seal of case 3 lower extreme sealing post 31, realize closing gas, the first sealing washer 32 of case 3 shoulder end is inconsistent in the cambered surface of disk seat 1 and is reached sealed effect of not leaking under the normal condition to the effect that plays through guide spring 4 wherein is guaranteeing that the terminal is pulled out and is inserted every time and can steadily not deviate from sealed cambered surface. The problem that the maintenance can be carried out without stopping the machine when the maintenance is carried out is reached.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A sealing combination device is characterized by comprising a valve body, wherein an air cavity is formed in the valve body, the lower end of the valve body is provided with an air inlet (12), the upper end of the valve body is provided with an air outlet (21), and an air flow channel is formed among the air inlet (12), the air cavity and the air outlet (21);
a valve core assembly is arranged in the air cavity in a sliding mode, the upper end of the valve core assembly is connected with the air cavity in a sealing mode, and a sealing mechanism used for blocking air flow from entering the air cavity from the air inlet (12) is arranged at the lower end of the valve core assembly.
2. Sealing combination according to claim 1, characterized in that the valve body comprises a seat (1) and a valve seat (2);
the air inlet (12) is formed in the lower end of the base (1), and a blind hole is formed in the base (1);
the air outlet (21) is formed in the upper end of the valve seat (2), a vent hole is formed in the valve seat (2), and the blind hole is communicated with the vent hole to form an air cavity;
the lower end of the valve seat (2) is hermetically arranged in a blind hole of the base (1).
3. A sealing combination according to claim 2, wherein the spool assembly comprises a spool (3);
the valve core (3) is arranged in the air cavity in a sliding mode, and the upper end of the valve core (3) is connected with the air cavity in a sealing mode.
4. Sealing combination according to claim 3, wherein the sealing mechanism comprises a guide spring (4);
the lower end of the valve core (3) is provided with a sealing column (31) for blocking the air inlet (12), the guide spring (4) is sleeved on the sealing column (31), the lower end of the guide spring (4) is tightly propped against the bottom of the blind hole, and the guide spring (4) is tightly propped against the valve core (3);
the lower end face of the blind hole is provided with a pressing thread, and the lower end of the valve core (3) is in threaded connection with the pressing thread.
5. Sealing combination according to claim 4, characterized in that the lower end of the sealing cylinder (31) is truncated-cone-shaped, the inclined surface of the truncated-cone-shaped sealing cylinder (31) pressing against the air inlet (12).
6. The sealing combination according to claim 4, characterized in that the lower end of the sealing column (31) is provided with an annular guide groove, the upper end surface of the guide spring (4) abuts against the bottom of the annular guide groove, and the guide spring (4) can move in the annular guide groove in a telescopic way.
7. The sealing combination device according to claim 3, characterized in that a first annular sealing groove is formed at the upper end of the valve core (3), and a first sealing ring (32) is arranged in the first annular sealing groove;
and a sealing step is formed in the vent hole of the valve seat (2), and the first sealing ring (32) is pressed between the first annular sealing groove and the sealing step to form sealing connection.
8. The sealing combination device according to claim 2, wherein a second annular sealing groove is formed at the upper end of the base (1), and a second sealing ring (11) is arranged in the second annular sealing groove;
sealing threads are formed in the upper end of the blind hole, the lower end of the valve seat (2) is in threaded connection with the sealing threads, and the second sealing ring (11) is pressed between the second annular sealing groove and the lower end face of the valve seat (2) to form sealing connection.
9. The sealing combination according to claim 2, wherein a third annular sealing groove is formed in an inner end surface of the vent hole, and a third sealing ring (22) is arranged in the third annular sealing groove.
10. Sealing combination according to claim 1, characterized in that an inlet duct (5) communicates with the inlet opening (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165572 | 2018-12-21 | ||
| CN2018221655721 | 2018-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875984U true CN209875984U (en) | 2019-12-31 |
Family
ID=68956319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920375088.3U Expired - Fee Related CN209875984U (en) | 2018-12-21 | 2019-03-24 | Sealing combination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590235A (en) * | 2022-03-09 | 2022-06-07 | 眉山中车制动科技股份有限公司 | Self-exhaust angle cock |
-
2019
- 2019-03-24 CN CN201920375088.3U patent/CN209875984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590235A (en) * | 2022-03-09 | 2022-06-07 | 眉山中车制动科技股份有限公司 | Self-exhaust angle cock |
| CN114590235B (en) * | 2022-03-09 | 2023-09-26 | 眉山中车制动科技股份有限公司 | Self-exhausting angle cock |
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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 |
Granted publication date: 20191231 Termination date: 20210324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |