CN203413191U - Self-adapted switching valve - Google Patents
Self-adapted switching valve Download PDFInfo
- Publication number
- CN203413191U CN203413191U CN201320456547.3U CN201320456547U CN203413191U CN 203413191 U CN203413191 U CN 203413191U CN 201320456547 U CN201320456547 U CN 201320456547U CN 203413191 U CN203413191 U CN 203413191U
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- valve body
- spool
- self
- valve
- tube nozzle
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- Expired - Lifetime
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Abstract
The utility model discloses a self-adapted switching valve, which relates to a vent valve in an air chest of a connector and ensures that the connector does not fall abnormally. The self-adapted switching valve is simple in structure, simple and convenient to connect and free from operation, and prevents the connector from falling abnormally. The self-adapted switching valve disclosed by the utility model comprises a valve body, a valve core, a spring, an O-shaped ring and a filler neck, wherein a valve core chamber and a bellmouth orifice, which are connected with each other, are formed inside the valve body, the upper end of the valve core chamber is arranged on the upper end face of the valve body, the lower end of the bellmouth orifice is arranged on the lower end face of the valve body, the bellmouth opening of the bellmouth orifice faces downward, a sealed molded surface is formed at the top end of the bellmouth orifice, the valve core is installed in the valve core chamber, a seal face is arranged in the center at the bottom of the valve core and is in contact with the sealed molded face of the valve body for sealing, at least one ventilating groove is formed in the outer surface at the lower end of the valve core, the filler neck is connected and matched with the valve body through a screw thread, the O-shaped ring is installed in a step hole of the filler neck, and one end of the spring is compressed on the O-shaped ring while the other end of the spring is compressed on the valve core.
Description
Technical field
The utility model relates to a kind of outlet valve, particularly relates to a kind ofly for connector air chest, guaranteeing the outlet valve that connector can not come off extremely.
Background technique
Connector need to be before rocket launching from rocket Automatic-falling, in the air chest of connector, be provided with solenoid valve, be used for the coming off of control connection device, under normal circumstances, when solenoid valve is switched on, coming off that gas is connector by supply air line provides pressure, when solenoid valve power-off, gas does not flow, but leaks or time-delay closing fault in when solenoid valve in use easily occurs power-off.When connector does not need to come off, in pipeline, pressure should be less than the minimum pressure that comes off of connector, if the solenoid valve that now in air chest, control connection device comes off leaks in occurring, gas is carried via supply air line, can cause pressure in pipeline to raise and be greater than the minimum pressure that comes off of connector, can cause that connector is improper to come off.
Model utility content
The technical problems to be solved in the utility model be to provide a kind of simple in structure, connect easy, avoid connector improperly come off, without the self-adaptive switch valve of operation.
The utility model self-adaptive switch valve, comprise valve body, spool, spring, O shape circle, connecting-tube nozzle, the inside of described valve body arranges interconnective spool chamber and bellmouth orifice, the upper end of described spool chamber is arranged on the upper-end surface of valve body, the lower end of described bellmouth orifice is arranged on the lower end surface of valve body, the horn mouth of described bellmouth orifice is downward, the top of described bellmouth orifice is formed with pressurization surface, described spool is arranged in spool chamber, described spool bottom centre is provided with sealing surface, described sealing surface contacts sealing with pressurization surface, the outer surface of the lower end of described spool is offered at least one vent grooves, the upper end of described spool is the conical surface, the outer surface of described spool upper end is set with spring, the upper end of described spring is provided with O shape circle, the spool chamber upper end of described valve body arranges internal thread, the outer surface of described connecting-tube nozzle arranges outside thread, described connecting-tube nozzle and valve body are threaded connection, the inside of described connecting-tube nozzle is provided with step hole, described step hole is through hole, described O shape circle is arranged in step hole, the upper end of described spring is pressed on O shape circle, the lower end of described spring is pressed on spool.
The utility model self-adaptive switch valve, the outer surface upper end of wherein said connecting-tube nozzle has been threaded connection nut.
The utility model self-adaptive switch valve, the upper end of wherein said connecting-tube nozzle has been threaded connection dustproof blanking cover, and the upper end sealing of described dustproof blanking cover, is provided with exhaust port on the inwall of described dustproof blanking cover, and described exhaust port is through hole.
The utility model self-adaptive switch valve, the top of the internal surface of wherein said valve body is provided with chamfering, and the upper end of described connecting-tube nozzle is provided with two parallel planes that position is relative.
The utility model self-adaptive switch valve, the lower end of wherein said valve body is provided with outside thread, and the outside thread of the lower end of described valve body forms pipe interface together with horn mouth, is connected with the supply air line after solenoid valve in connector air chest.
The utility model self-adaptive switch valve difference from prior art is that the utility model self-adaptive switch valve comprises valve body, spool, spring, O shape circle, several parts of connecting-tube nozzle, simple in structure, during use, only the horn mouth of self-adaptive switch valve need be connected in the supply air line after solenoid valve in connector air chest, connect easy.When connector need to come off, solenoid valve is opened, gas pressure in pipeline rises very fast, pressure is higher, spool is motion from bottom to top under gas pressure, sealing surface and pressurization surface sealing change the spool conical surface and top O shape circle press seal into when initial, and in this process, self-adaptive switch valve is cutting out after exhaust in a flash on a small quantity, and the impact of the pressure in the supply air line that control connection device is come off can be ignored; When connector does not need to come off, solenoid valve power-off is closed, if when leakage conductance causes gas pressure in pipeline and is elevated to the cracking pressure higher than self-adaptive switch valve in solenoid valve occurs, self-adaptive switch valve is opened exhaust, make in pipeline pressure lower than the minimum pressure that comes off of connector.Self-adaptive switch valve can opening and closing voluntarily under gas pressure effect, without manual operation, by the gas discharging in pipeline, neither affect that connector normally comes off and the solenoid valve that can guarantee to come off at control connection device occur in during leakage connector can extremely not come off.
In the utility model self-adaptive switch valve, the outer surface upper end of connecting-tube nozzle has been threaded connection nut, prevents that the relative valve body of connecting-tube nozzle is loosening, guarantees that self-adaptive switch valve exhaust pressure range remains unchanged.
In the utility model self-adaptive switch valve, the upper end of connecting-tube nozzle has been threaded connection dustproof blanking cover, and the upper end sealing of dustproof blanking cover, can prevent that foreign matter from entering self-adaptive switch valve inner, and gas can enter in atmosphere via the exhaust port on dustproof blanking cover inwall.
The upper end that in the utility model self-adaptive switch valve, the top of the internal surface of valve body is provided with chamfering, connecting-tube nozzle is provided with two parallel planes that position is relative, spanner installation and removal easy to use.
Below in conjunction with accompanying drawing, self-adaptive switch valve of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the whole-cutaway view of the utility model self-adaptive switch valve;
Fig. 2 is that the master of spool in the utility model self-adaptive switch valve looks sectional view;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is that the master of connecting-tube nozzle in the utility model self-adaptive switch valve looks sectional view;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is that the master of dustproof blanking cover in the utility model self-adaptive switch valve looks sectional view;
Fig. 7 is the left view of Fig. 6.
Embodiment
As shown in Figure 1, the utility model self-adaptive switch valve comprises valve body 1, spool 2, spring 3, O shape circle 4, nut 5, connecting-tube nozzle 6, dustproof blanking cover 11, the inside of valve body 1 arranges interconnective spool chamber 8 and bellmouth orifice, the upper end of spool chamber 8 is arranged on the upper-end surface of valve body 1, the lower end of bellmouth orifice is arranged on the lower end surface of valve body 1, the horn mouth of bellmouth orifice is downward, the lower end of valve body 1 is provided with outside thread, together with the outside thread of horn mouth and valve body 1 lower end, form pipe interface, be connected with the supply air line after solenoid valve in connector air chest, the top of bellmouth orifice is formed with pressurization surface 7, spool 2 is arranged in spool chamber 8, spool 2 bottom centre are provided with sealing surface 9, sealing surface 9 contacts sealing with pressurization surface 7, the outer surface of the lower end of spool 2 is offered at least one vent grooves 10, the upper end of spool 2 is the conical surface, the outer surface of spool 2 upper ends is set with spring 3, the upper end of spring 3 is provided with O shape circle 4, the lower end of the outer surface of valve body 1 is provided with outside thread, spool chamber 8 upper ends of valve body 1 arrange internal thread, the outer surface of connecting-tube nozzle 6 arranges outside thread, connecting-tube nozzle 6 is threaded connection with valve body 1, the inside of connecting-tube nozzle 6 is provided with step hole, step hole is through hole, O shape circle 4 is arranged in step hole, the upper end of spring 3 is pressed on O shape circle 4, the lower end of spring 3 is pressed on spool 2, the externally threaded upper end that nut 5 screws in connecting-tube nozzle 6 prevents that the relative valve body 1 of connecting-tube nozzle 6 is loosening, the exhaust pressure interval that guarantees self-adaptive switch valve remains unchanged.
Shown in Fig. 2 and Fig. 3, the upper end of spool 2 is the conical surface, and the outer surface of the lower end of spool 2 offers 10, three vent grooves 10 of three vent grooves and is uniformly distributed along the outer surface of the lower end of spool 2.
Shown in Fig. 4 and Fig. 5, the internal surface of connecting-tube nozzle 6 is provided with step hole, and the outer surface of connecting-tube nozzle 6 is provided with outside thread, and the upper end of the outer surface of connecting-tube nozzle 6 is milled with parallel plane, for the installation and removal between connecting-tube nozzle 6 and valve body 1.
Shown in Fig. 1, Fig. 6 and Fig. 7, the upper end of connecting-tube nozzle 6 has been threaded connection dustproof blanking cover 11, the upper end sealing of dustproof blanking cover 11, can prevent that foreign matter from entering self-adaptive switch valve inner, the inwall of dustproof blanking cover 11 is along being circumferentially evenly provided with 4 exhaust ports 12, exhaust port 12 is through hole, and gas can enter in atmosphere via exhaust port 12.
During use, self-adaptive switch valve is connected in the supply air line after solenoid valve in air chest, by the height of thread that regulates connecting-tube nozzle 6 to screw in valve body 1, control the decrement to spring 3, thereby control the cracking pressure of spool 2, when connector need to come off, solenoid valve is opened, gas pressure in pipeline rises very fast, air displacement is very little, in the supply air line that control connection device is come off, the impact of pressure can be ignored, when connector does not need to come off, solenoid valve should cut out, but cause pressure in pipeline to raise owing to leaking in solenoid valve, during higher than the cracking pressure of self-adaptive switch valve core 2, spool 2 upwardly opens under gas pressure, gas enters into valve body 1 by the gap between the sealing surface 9 of spool 2 and the pressurization surface 7 of valve body 1, pass through again vent grooves 10, finally by connecting-tube nozzle 6, the exhaust port 12 of dustproof blanking cover 11 enters in atmosphere, now along with the gas pressure in pipeline reduces gradually, spool 2 moves downward, until the gas pressure in pipeline is less than the cracking pressure of self-adaptive switch valve, spool 2 is got back to initial position, under the effect of spring 3, the sealing surface 9 of spool 2 contacts sealing with the pressurization surface 7 of valve body, self-adaptive switch valve stops exhaust, automatically close.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (5)
1. a self-adaptive switch valve, it is characterized in that: comprise valve body (1), spool (2), spring (3), O shape circle (4), connecting-tube nozzle (6), the inside of described valve body (1) arranges interconnective spool chamber (8) and bellmouth orifice, the upper end of described spool chamber (8) is arranged on the upper-end surface of valve body (1), the lower end of described bellmouth orifice is arranged on the lower end surface of valve body (1), the horn mouth of described bellmouth orifice is downward, the top of described bellmouth orifice is formed with pressurization surface (7), described spool (2) is arranged in spool chamber (8), described spool (2) bottom centre is provided with sealing surface (9), described sealing surface (9) contacts sealing with pressurization surface (7), the outer surface of the lower end of described spool (2) is offered at least one vent grooves (10), the upper end of described spool (2) is the conical surface, the outer surface of described spool (2) upper end is set with spring (3), the upper end of described spring (3) is provided with O shape circle (4), spool chamber (8) upper end of described valve body (1) arranges internal thread, the outer surface of described connecting-tube nozzle (6) arranges outside thread, described connecting-tube nozzle (6) is threaded connection with valve body (1), the inside of described connecting-tube nozzle (6) is provided with step hole, described step hole is through hole, described O shape circle (4) is arranged in step hole, the upper end of described spring (3) is pressed on O shape circle (4), the lower end of described spring (3) is pressed on spool (2).
2. self-adaptive switch valve according to claim 1, is characterized in that: the outer surface upper end of described connecting-tube nozzle (6) has been threaded connection nut (5).
3. self-adaptive switch valve according to claim 2, it is characterized in that: the upper end of described connecting-tube nozzle (6) has been threaded connection dustproof blanking cover (11), the upper end sealing of described dustproof blanking cover (11), on the inwall of described dustproof blanking cover (11), be provided with exhaust port (12), described exhaust port (12) is through hole.
4. self-adaptive switch valve according to claim 3, is characterized in that: the top of the internal surface of described valve body (1) is provided with chamfering, and the upper end of described connecting-tube nozzle (6) is provided with two parallel planes that position is relative.
5. self-adaptive switch valve according to claim 4, it is characterized in that: the lower end of described valve body (1) is provided with outside thread, the outside thread of the lower end of described valve body (1) forms pipe interface together with horn mouth, is connected with the supply air line after solenoid valve in connector air chest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456547.3U CN203413191U (en) | 2013-07-29 | 2013-07-29 | Self-adapted switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320456547.3U CN203413191U (en) | 2013-07-29 | 2013-07-29 | Self-adapted switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413191U true CN203413191U (en) | 2014-01-29 |
Family
ID=49976080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320456547.3U Expired - Lifetime CN203413191U (en) | 2013-07-29 | 2013-07-29 | Self-adapted switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413191U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791007A (en) * | 2014-02-25 | 2014-05-14 | 四川省机械研究设计院 | Self-adaption throttling control system applied to engineering mechanical vehicle |
| CN104776254A (en) * | 2015-03-27 | 2015-07-15 | 快达消防科技有限公司 | Differential type exhaust valve |
| CN105090649A (en) * | 2015-09-07 | 2015-11-25 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
| CN106121865A (en) * | 2016-03-14 | 2016-11-16 | 中国运载火箭技术研究院 | A kind of solid rocket ramjet gas flow self-checking device |
| CN115163893A (en) * | 2022-06-16 | 2022-10-11 | 北京航天发射技术研究所 | Bidirectional pressure self-adaptive switch valve |
-
2013
- 2013-07-29 CN CN201320456547.3U patent/CN203413191U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791007A (en) * | 2014-02-25 | 2014-05-14 | 四川省机械研究设计院 | Self-adaption throttling control system applied to engineering mechanical vehicle |
| CN103791007B (en) * | 2014-02-25 | 2016-08-17 | 四川省机械研究设计院 | Adaptive session flow control system on engineering machinery vehicle |
| CN104776254A (en) * | 2015-03-27 | 2015-07-15 | 快达消防科技有限公司 | Differential type exhaust valve |
| CN104776254B (en) * | 2015-03-27 | 2018-02-23 | 快达消防科技有限公司 | Differential type air bleeding valve |
| CN105090649A (en) * | 2015-09-07 | 2015-11-25 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
| CN105090649B (en) * | 2015-09-07 | 2017-04-26 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
| CN106121865A (en) * | 2016-03-14 | 2016-11-16 | 中国运载火箭技术研究院 | A kind of solid rocket ramjet gas flow self-checking device |
| CN115163893A (en) * | 2022-06-16 | 2022-10-11 | 北京航天发射技术研究所 | Bidirectional pressure self-adaptive switch valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |