CN203670932U - Safety valve with air bag - Google Patents
Safety valve with air bag Download PDFInfo
- Publication number
- CN203670932U CN203670932U CN201420006395.1U CN201420006395U CN203670932U CN 203670932 U CN203670932 U CN 203670932U CN 201420006395 U CN201420006395 U CN 201420006395U CN 203670932 U CN203670932 U CN 203670932U
- Authority
- CN
- China
- Prior art keywords
- valve
- adjusting screw
- valve rod
- valve body
- air bag
- 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
Links
Abstract
The utility model discloses a safety valve with an air bag. The safety valve comprises a valve body. A sealing gasket, a valve element, a valve rod, a spring, an adjusting screw and a pull ring are sequentially connected in the valve body from bottom to top. The sealing gasket is fixedly connected to the bottom of the valve element, the valve element is fixedly connected to the bottom of the valve rod, the valve rod is sleeved with the spring, a through hole allowing the valve rod to penetrate through is formed in the center of the adjusting screw, external threads are arranged on the outer portion of the adjusting screw, the adjusting screw is connected with the valve body in a threaded mode, a straight groove allowing a straight screwdriver head to be inserted in is formed in the upper end of the adjusting screw, a through hole which penetrates through the valve rod is formed in the upper end of the valve rod, the pull ring penetrates through the through hole and an air bag sealing device is installed on the valve element. Compared with the prior art, the air bag sealing device is arranged on the valve element so that pressure-released gas cannot be exhausted from a gap between the valve rod and the adjusting screw, therefore, the pressure of the safety valve can be adjusted conveniently and the practicability is high.
Description
Technical field
The utility model belongs to air compressor accessory technical field, particularly a kind of safety valve on air compressor.
Background technique
Air compressor is a kind of general machinery, in more equipment as supporting application.
Can be gapped between safety valve valve rod in existing air compressor and bonnet, the gas of discharging in air compressor can be discharged from this gap, and the words that gas is discharged from this gap can affect the elastic force of safety valve medi-spring, thus make the discharge air pressure of safety valve be difficult to control.
Model utility content
In order to overcome the deficiency of above-mentioned technology, the purpose of this utility model is to provide a kind of novel safety valve with air bag.
The technological scheme that the utility model is taked for its technical problem of solution is:
A kind of safety valve with air bag, comprise valve body, in valve body, be provided with suction port, on the valve body of valve body suction port upper end, be provided with air vent, in valve body, be from bottom to top connected with in turn sealing gasket, spool, valve rod, spring, adjusting screw and draw ring, sealing gasket is fixed in the bottom of spool, spool is fixed in the bottom of valve rod, spring housing is connected on the outside of valve rod, be provided with a through hole passing for valve rod at the center of adjusting screw, adjusting screw outside is provided with outside thread, and adjusting screw is connected with valve body screw thread, be provided with the straight groove inserting for straight screwdriver cutter head in described adjusting screw upper end, be provided with a through hole that runs through valve rod in described valve rod upper end, described draw ring runs through described through hole, on described spool, airbag sealing unit is installed.
Described airbag sealing unit comprises the upper gasbag that is arranged on described spool upper end and the lower gasbag that is arranged on described spool lower end, and upper gasbag is communicated with lower gasbag, between spring and air bag, is provided with packing ring.
The beneficial effects of the utility model: the utility model is compared with prior art provided with airbag sealing unit on spool can not discharged the gas of pressure release from the gap of valve rod and adjusting screw, cause the air pressure of safety valve to be convenient to regulate, practical.
Accompanying drawing explanation
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model.
Embodiment
In order to make the utility model be convenient to understand, below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of safety valve with air bag as shown in Figure 1, comprise valve body 1, it should be noted that, in valve body 1, be provided with suction port, on the valve body 1 of valve body 1 suction port upper end, be provided with air vent, in valve body 1, be from bottom to top connected with in turn sealing gasket 2, spool 7, valve rod 3, spring 4, adjusting screw 5 and draw ring 6, sealing gasket 2 is fixed in the bottom of spool 7, spool 7 is fixed in the bottom of valve rod 3, spring 4 is socketed in the outside of valve rod 3, be provided with a through hole 51 passing for valve rod 3 at the center of adjusting screw 5, adjusting screw 5 outsides are provided with outside thread, and adjusting screw 5 is threaded with valve body 1, be provided with the straight groove 52 inserting for straight screwdriver cutter head in described adjusting screw 5 upper ends, be provided with a through hole 31 that runs through valve rod 3 in described valve rod 1 upper end, described draw ring 6 runs through described through hole 31, on described spool 7, airbag sealing unit is installed.
Further it should be noted that described airbag sealing unit comprises the upper gasbag 8 that is arranged on described spool 7 upper ends and the lower gasbag 9 that is arranged on described spool 7 lower ends, and upper gasbag 8 is communicated with lower gasbag 9, between spring 4 and upper gasbag 8, is provided with packing ring.
When in the utility model safety valve, air pressure is greater than spring pressure, spool is by air pressure jack-up, cause spring-compressed, when spring-compressed, upper gasbag is produced to pressure, the gas of upper gasbag is compressed into lower gasbag, lower gasbag is expanded the endoporus sealing of valve body, discharge thereby reduce in the gap of gas from valve rod and adjusting screw; In the time that in safety valve, air pressure is less than spring pressure, spring reduces gradually to the pressure of upper gasbag, and the gas in lower gasbag flows gradually in upper gasbag, makes upper gasbag and lower gasbag get back to initial conditions.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope, those ordinary skill in the art's simple change and replacement are all within protection domain of the present utility model.
Claims (2)
1. one kind has the safety valve of air bag, comprise valve body, it is characterized in that: in valve body, be provided with suction port, on the valve body of valve body suction port upper end, be provided with air vent, in valve body, be from bottom to top connected with in turn sealing gasket, spool, valve rod, spring, adjusting screw and draw ring, sealing gasket is fixed in the bottom of spool, spool is fixed in the bottom of valve rod, spring housing is connected on the outside of valve rod, be provided with a through hole passing for valve rod at the center of adjusting screw, adjusting screw outside is provided with outside thread, and adjusting screw is connected with valve body screw thread, be provided with the straight groove inserting for straight screwdriver cutter head in described adjusting screw upper end, be provided with a through hole that runs through valve rod in described valve rod upper end, described draw ring runs through described through hole, on described spool, airbag sealing unit is installed.
2. a kind of safety valve with air bag according to claim 1, it is characterized in that: described airbag sealing unit comprises the upper gasbag that is arranged on described spool upper end and the lower gasbag that is arranged on described spool lower end, and upper gasbag is communicated with lower gasbag, between spring and air bag, be provided with packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006395.1U CN203670932U (en) | 2014-01-06 | 2014-01-06 | Safety valve with air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006395.1U CN203670932U (en) | 2014-01-06 | 2014-01-06 | Safety valve with air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670932U true CN203670932U (en) | 2014-06-25 |
Family
ID=50967229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006395.1U Expired - Fee Related CN203670932U (en) | 2014-01-06 | 2014-01-06 | Safety valve with air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670932U (en) |
-
2014
- 2014-01-06 CN CN201420006395.1U patent/CN203670932U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140625 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |