CN201672120U - Pressure-reducing valve with corrugated pipe - Google Patents
Pressure-reducing valve with corrugated pipe Download PDFInfo
- Publication number
- CN201672120U CN201672120U CN2010201698249U CN201020169824U CN201672120U CN 201672120 U CN201672120 U CN 201672120U CN 2010201698249 U CN2010201698249 U CN 2010201698249U CN 201020169824 U CN201020169824 U CN 201020169824U CN 201672120 U CN201672120 U CN 201672120U
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- CN
- China
- Prior art keywords
- pressure
- spring
- bellows
- corrugated pipe
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pressure-reducing valve with a corrugated pipe. The valve consists of a nut (1), a valve core (2), a spring (3), the corrugated pipe (4), a blind nut (5), a valve sleeve (6), a spring seat (7) and a fastening sleeve (8), wherein the corrugated pipe (4) isolates the cavity of a product from the atmosphere and senses the pressure of the cavity of the product; the corrugated pipe (4) is rigidly connected with the valve core (2) through the nut (1); the spring (3) is connected with the fastening sleeve (8) and the valve core (2) through the spring seat (7); and the blind nut (5) presses the corrugated pipe (4) and the spring (3). By adopting the corrugated pipe with the properties of large surface area and scalability, the pressure-reducing valve can fully sense pressure and temperature changes and can be adjusted along with the pressure and temperature changes so that the aim of stably outputting pressure is fulfilled, the working reliability of the pressure-reducing valve is enhanced and the service life of the pressure-reducing valve is prolonged.
Description
Technical field
The utility model belongs to hydraulic pressure, pneumatic equipment technology, particularly improves the structure of reduction valve stable output pressure by bellows.
Background technique
In traditional reduction valve product, mainly with elastomer diaphragm or metal diaphragm as pressure element, and being subjected to the influence of diaphragm material self physical attribute, elastomer diaphragm all can greatly be weakened in higher or lower ambient temperature its susceptibility and working life of self of experiencing pressure; Metal diaphragm is subjected to influence of temperature change less, but then need its surface area maximization is increased its area that produces effect with this for improving its susceptibility of experiencing pressure, temperature, improve work efficiency, therefore the volume of metal diaphragm has determined its task performance, makes design work be subjected to bigger restriction.
Summary of the invention
The purpose of this utility model is: design a kind of under existing volume requirement condition, the reduction valve of the band bellows that functional reliability and working life are higher.
The technical solution of the utility model is: a kind of reduction valve with bellows, form by nut 1, spool 2, spring 3, bellows 4, blind nut 5, valve pocket 6, spring seat 7 and adapter sleeve 8, it is characterized in that bellows 4 makes product cavity and atmospheric isolation, and experience product cavity pressure; Nut 1 is connected bellows 4 with spool 2 rigidity, can adjust the upper and lower displacement of spool 2 by nut 1, and then adjusts the openings of sizes of spool 2 and valve pocket 6; Spring 3 is connected with spool 2 by spring seat 7 and adapter sleeve 8; Blind nut 5 is pushed down bellows 4 and spring 3, can adjust by 5 pairs of springs 3 of blind nut.
Described bellows adopts elastic alloy material, has bigger surface area and characteristic of telescopic, can fully experience pressure, variation of temperature.
The utility model has the advantages that: owing to adopt bellows structure, utilize its surface area to reach characteristic of telescopic greatly, under existing volume requirement condition, can experience the inside and outside pressure, temperature variation of product, and can regulate thereupon, reach the purpose of stable output pressure, and then improve the functional reliability and the working life of reduction valve.
Description of drawings
Fig. 1 is the utility model structure of relief pressure valve schematic representation.
Embodiment
Below the utility model is described in further details.
As shown in Figure 1, a kind of reduction valve with bellows is made up of nut 1, spool 2, spring 3, bellows 4, blind nut 5, valve pocket 6, spring seat 7 and adapter sleeve 8, it is characterized in that bellows 4 makes product cavity and atmospheric isolation, and experiences product cavity pressure; Nut 1 is connected bellows 4 with spool 2 rigidity, can adjust the upper and lower displacement of spool 2 by nut 1, and then adjusts the openings of sizes of spool 2 and valve pocket 6; Spring 3 is connected with spool 2 by spring seat 7 and adapter sleeve 8; Blind nut 5 is pushed down bellows 4 and spring 3, can adjust by 5 pairs of springs 3 of blind nut.
Described bellows adopts elastic alloy material, has bigger surface area and characteristic of telescopic, can fully experience pressure, variation of temperature.
Working principle of the present utility model is as follows:
This product " P " mouthful place is suction port, and " R " mouthful place is relief opening, and is communicated with atmosphere.
A chamber and B chamber are by reduction valve housing pipeline UNICOM, two cavity pressures equate, when fluctuation appears in inlet pressure, variation in pressure is experienced in A chamber, B chamber simultaneously, bellows 4 is stressed variable effect and is compressed or discharges, and drive spool 2, spring 3 is subjected to displacement together, thereby changed the gap length of spool 2 with the opening of valve pocket 6, the flow of Control work medium reaches the purpose of stable output pressure.
Claims (2)
1. reduction valve with bellows, form by nut (1), spool (2), spring (3), bellows (4), blind nut (5), valve pocket (6), spring seat (7) and adapter sleeve (8), it is characterized in that bellows (4) makes product cavity and atmospheric isolation, and experience product cavity pressure; Nut (1) is connected bellows (4) with spool (2) rigidity; Spring (3) is connected with spool (2) by spring seat (7) and adapter sleeve (8); Blind nut (5) is pushed down bellows (4) and spring (3).
2. the reduction valve of band bellows according to claim 1 is characterized in that, described bellows (4) adopts elastic alloy material, has bigger surface area and characteristic of telescopic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201698249U CN201672120U (en) | 2010-04-26 | 2010-04-26 | Pressure-reducing valve with corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201698249U CN201672120U (en) | 2010-04-26 | 2010-04-26 | Pressure-reducing valve with corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201672120U true CN201672120U (en) | 2010-12-15 |
Family
ID=43329532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201698249U Expired - Fee Related CN201672120U (en) | 2010-04-26 | 2010-04-26 | Pressure-reducing valve with corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201672120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705550A (en) * | 2012-06-25 | 2012-10-03 | 江苏亚希维医疗器械有限责任公司 | Pressure relief valve of self-rescuer |
| CN106907505A (en) * | 2017-04-10 | 2017-06-30 | 浙江大学 | The high-pressure pneumatic proportional pressure-reducing valve of sylphon seal |
-
2010
- 2010-04-26 CN CN2010201698249U patent/CN201672120U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705550A (en) * | 2012-06-25 | 2012-10-03 | 江苏亚希维医疗器械有限责任公司 | Pressure relief valve of self-rescuer |
| CN106907505A (en) * | 2017-04-10 | 2017-06-30 | 浙江大学 | The high-pressure pneumatic proportional pressure-reducing valve of sylphon seal |
| CN106907505B (en) * | 2017-04-10 | 2018-10-12 | 浙江大学 | The high-pressure pneumatic proportional pressure-reducing valve of sylphon seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20180426 |