CN204420227U - A kind of barometric control unit - Google Patents
A kind of barometric control unit Download PDFInfo
- Publication number
- CN204420227U CN204420227U CN201420851404.7U CN201420851404U CN204420227U CN 204420227 U CN204420227 U CN 204420227U CN 201420851404 U CN201420851404 U CN 201420851404U CN 204420227 U CN204420227 U CN 204420227U
- Authority
- CN
- China
- Prior art keywords
- push rod
- spool
- spool push
- lip
- type packing
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to aero-mechanical device, particularly relate to energy adjustable pressure, have that the cost of material is low, a kind of barometric control unit of the advantages such as good airproof performance, comprises lip-type packing, is arranged on the spool push rod of lip-type packing lower end, be arranged on the spool guiding trestle of spool push rod both sides, be arranged on the bowl-type seal ring of guiding trestle bottom, be sleeved on the spring of spool push rod lower end, and the plastic casing of barometric control unit outside; Lip-type packing is platform shape structure, there is circular port centre, a circle cavity is had around circular port and between lip-type packing edge, spool push rod is positioned at lip-type packing lower end, the front end of spool push rod and the dead in line of lip-type packing circular port, spool guiding trestle is positioned at the both sides of spool push rod, just contact with spool push rod, bowl-type seal ring is stuck in the bottom being enclosed within spool push rod top between spool push rod and spool guiding trestle, spring housing is in compressive state in spool push rod lower end, and spool push rod is contacted with bowl-type seal ring.
Description
Technical field
The utility model relates to a kind of aero-mechanical device, and particularly relating to can adjustable pressure, has structure simple, easy to use, a kind of barometric control unit of the advantages such as regulating effect is good.
Background technique
At present, the existing controlling device for air pressure adjustment, its shell is generally metal, and controlling device be placed on bottom air compressor switch during use, thimble is put on controlling device top, end taps into tracheae, when air compressor switch disconnects, bear down on one pin on inner shell fragment top, causes thimble to press spool push rod and open controlling device ventilating hole, manifold air pressure is discharged, reaches the object of by-pass cock end air pressure balance.But in production controlling device process, need a large amount of metallic zinc materials, this causes very large pressure to cost of production, and, if metal shell could not strictly control to be easy to occur poorly sealed problem in the process of producing, the up-to-standard rate of switch product is had a certain impact.
Summary of the invention
The purpose of this utility model is exactly to solve the problem that existing barometric control unit cost is higher and sealing is poor, and provides one to reduce costs, and has structure simple, easy to use, the barometric control unit of the advantages such as good sealing effect.
The technical solution adopted in the utility model is:
A kind of barometric control unit, comprise lip-type packing, be arranged on the spool push rod of lip-type packing lower end, be arranged on the spool guiding trestle of spool push rod both sides, be arranged on the bowl-type seal ring of guiding trestle bottom, be sleeved on the spring of spool push rod lower end, and the plastic casing of whole controlling device outside, described lip-type packing is platform shape structure, there is circular port centre, a circle cavity is had around circular port and between lip-type packing edge, described spool push rod is positioned at the lower end of lip-type packing, the front end of spool push rod and the dead in line of lip-type packing circular port, described spool guiding trestle is positioned at the both sides of spool push rod, just contact with spool push rod, described bowl-type seal ring is stuck in the bottom being enclosed within spool push rod top between spool push rod and spool guiding trestle, described spring housing is in spool push rod lower end, being in compressive state makes spool push rod contact with bowl-type seal ring.
Described spring is Compress Spring, and its internal diameter is consistent with spool push rod lower end diameter, and spool push rod lower end is in the spring nested, and spool push rod upper end diameter is consistent with bowl-type internal diameter of the seal ring.
Described lip-type packing external diameter is consistent with controlling device end face internal diameter, the central axes of central axis and spool push rod.
The end face diameter at described spool guiding trestle fixed spool push rod place is consistent with the diameter of spool push rod upper end.
The beneficial effects of the utility model are:
A kind of plastic casing barometric control unit that the utility model provides, is arranged on bottom air compressor switch, by the disconnection of switch with closed, and the air pressure balance of by-pass cock end.
In a word, it is low that a kind of plastic casing barometric control unit that the utility model provides has product cost, good airproof performance, and structure is simple, easy to install, the advantage that regulating effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of barometric control unit that the utility model provides.
In figure: 1-lip-type packing, 2-spool push rod, 3-spool guiding trestle, 4-bowl-type seal ring, 5-spring, 6-plastic casing, 7-connecting sleeve.
Embodiment
Core of the present utility model is to provide a kind of barometric control unit.
Below in conjunction with accompanying drawing, content of the present utility model is described further:
A kind of barometric control unit, as shown in Figure 1, comprises lip-type packing (1), is arranged on lip envelope
The spool push rod (2) of circle (1) lower end, be arranged on the spool guiding trestle (3) of spool push rod (2) both sides, be arranged on the bowl-type seal ring (4) of spool guiding trestle (3) bottom, be sleeved on the spring (5) of spool push rod (2) lower end, and the plastic casing (6) of whole barometric control unit outside, described lip-type packing (1) is platform shape structure, there is circular port centre, a circle cavity is had around circular port and between seal ring (1) edge, described spool push rod (2) is positioned at the lower end of lip-type packing, the front end of spool push rod (2) and the dead in line of lip-type packing (1) circular port, described spool guiding trestle (3) is positioned at the both sides of spool push rod (2), just contact with spool push rod (2), described bowl-type seal ring (4) is stuck in the bottom being enclosed within spool push rod (2) top between spool push rod (2) and spool guiding trestle (3), described spring (5) is enclosed within spool push rod (2) lower end, being in compressive state makes spool push rod (2) contact with bowl-type seal ring (4).Described spring (5) is Compress Spring, and its internal diameter is consistent with spool push rod (2) lower end diameter, and spool push rod (2) lower end is nested in spring (5), and spool push rod (2) upper end diameter is consistent with bowl-type seal ring (4) internal diameter.Described lip-type packing (1) external diameter is consistent with controlling device end face internal diameter, the central axes of central axis and spool push rod (2).The end face diameter at described spool guiding trestle (3) fixed spool push rod (2) place is consistent with the diameter of spool push rod (2) upper end.
During installation, first bowl-type seal ring (4) is arranged on spool guiding trestle (3), then spool push rod (2) is inserted in spool guiding trestle (3), spring (5) is enclosed within spool push rod (2), finally the plastic casing (6) of controlling device is enclosed within spool guiding trestle (3), is pressed in plastic casing (6).
During use, connecting sleeve (7) place taps into tracheae, due to the effect of air pressure after gas enters, and upwards jack-up spool push rod (2) under the effect of Compress Spring (5) and air pressure, cause spool push rod (2) and bowl-type seal ring (4) close contact, make gas not by; When adding external strength, general meeting adds a thimble at lip-type packing (1) place, when external strength forces thimble to extrude downwards, thimble can produce pressure to spool push rod (2), Compress Spring (5) is out of shape, cause spool push rod (2) to be separated with bowl-type seal ring (4), gas circuit conducting is lost heart.
Claims (4)
1. a barometric control unit, it is characterized in that: comprise lip-type packing (1), be arranged on the spool push rod (2) of lip-type packing (1) lower end, be arranged on the spool guiding trestle (3) of spool push rod (2) both sides, be arranged on the bowl-type seal ring (4) of guiding trestle (3) bottom, be sleeved on the spring (5) of spool push rod (2) lower end, and the plastic casing (6) of whole barometric control unit outside, described lip-type packing (1) is platform shape structure, there is circular port centre, a circle cavity is had around circular port and between lip-type packing (1) edge, described spool push rod (2) is positioned at the lower end of lip-type packing, the front end of spool push rod (2) and the dead in line of lip-type packing (1) circular port, described spool guiding trestle (3) is positioned at the both sides of spool push rod (2), just contact with spool push rod (2), described bowl-type seal ring (4) is stuck in the bottom being enclosed within spool push rod (2) top between spool push rod (2) and spool guiding trestle (3), described spring (5) is enclosed within spool push rod (2) lower end, being in compressive state makes spool push rod (2) contact with bowl-type seal ring (4).
2. barometric control unit according to claim 1, it is characterized in that: described spring (5) is Compress Spring, its internal diameter is consistent with spool push rod (2) lower end diameter, spool push rod (2) lower end is nested in spring (5), and spool push rod (2) upper end diameter is consistent with bowl-type seal ring (4) internal diameter.
3. barometric control unit according to claim 1, is characterized in that: described lip-type packing (1) external diameter is consistent with controlling device end face internal diameter, the central axes of central axis and spool push rod (2).
4. barometric control unit according to claim 1, is characterized in that: the end face diameter at described spool guiding trestle (3) fixed spool push rod (2) place is consistent with the diameter of spool push rod (2) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851404.7U CN204420227U (en) | 2014-12-30 | 2014-12-30 | A kind of barometric control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420851404.7U CN204420227U (en) | 2014-12-30 | 2014-12-30 | A kind of barometric control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420227U true CN204420227U (en) | 2015-06-24 |
Family
ID=53470598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420851404.7U Expired - Fee Related CN204420227U (en) | 2014-12-30 | 2014-12-30 | A kind of barometric control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420227U (en) |
-
2014
- 2014-12-30 CN CN201420851404.7U patent/CN204420227U/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: 20150624 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |