CN2545444Y - Post type rotary pneumatic seal four-way switching valve - Google Patents
Post type rotary pneumatic seal four-way switching valve Download PDFInfo
- Publication number
- CN2545444Y CN2545444Y CN 02232849 CN02232849U CN2545444Y CN 2545444 Y CN2545444 Y CN 2545444Y CN 02232849 CN02232849 CN 02232849 CN 02232849 U CN02232849 U CN 02232849U CN 2545444 Y CN2545444 Y CN 2545444Y
- Authority
- CN
- China
- Prior art keywords
- spool
- way switching
- switching valve
- valve body
- end cap
- 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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- Multiple-Way Valves (AREA)
Abstract
A column type rotating air-pressure sealed four-way steering valve is mainly characterized in that a valve core is installed inside a columnar valve body; two ends of the valve body are provided with an end cover and a bearing; the valve core is connected with a shaft; an end cover seal is installed between the valve core and the end cover; the end cover is provided with an air entering nozzle; the valve core is provided with a valve core seal and is provided with an air path; the air path is connected with the valve core seal through a shaft hole. The utility model has the advantages of reasonable structure, small size and good sealing effect and is the ideal energy-saving steering valve of a calcining furnace and a heating furnace for preheating air by the waste heat.
Description
Technical field
The utility model relate to a kind of be used to forge make stove, oven can utilize waste heat to carry out the switching valve of air preheat with energy saving.
Background technique
Heat accumulating type high-temp combustion technology is applied very fast in recent years.Wherein use maximum big four switching valves and exist structural design unreasonable, volume is big, the defective of sealing difference, and using effect is not satisfactory.
The model utility content
The purpose of this utility model provides a kind of pillar rotary pneumatic seal type four-way switching valve of rational in infrastructure, good seal performance.
The purpose of this utility model is achieved in that a kind of pillar rotary pneumatic seal type four-way switching valve, in columnar valve body spool is housed, and the valve body two ends are equipped with end cap, bearing is housed on the end cap and compresses sealing by little end cap; Spool is connected with axle, and the two ends of axle are installed in the bearing, and end bracket enclosed also is installed between spool and the end cap, and air inlet nozzle also is installed on the end cap; Seal spool is installed on the spool and is provided with gas circuit, be communicated with seal spool by axis hole, gas circuit.
The purpose of this utility model can also realize like this: four ventilating hole sectional shapes of valve body are oval.
Handle through chromium plating on the valve body inner bore surface.
End bracket enclosed adopts silicone rubber material to make.
The utlity model has advantages such as rational in infrastructure, that volume is little, and pneumostop is effective.
Description of drawings
Fig. 1 the utility model axial section schematic representation
Fig. 2 the utility model radial section schematic representation
Embodiment
The utility model valve body 6 is designed to cylindric, for dwindling body size, is oval with four ventilating hole Cross section Design that pass in and out gas.Cartridge spool 7 in the valve body 6.End cap 5 is equipped with at valve body 6 two ends, bearing 3 is housed on the end cap 5 and compresses sealing by small end lid 2.Spool 7 and axle 1 are connected as a single entity by gusset, and gusset is divided into two spaces with spool.The two ends of axle are contained in the bearing 3.Be provided with end bracket enclosed 8 between spool 7 and the end cap 5, air inlet nozzle 4 also is installed on the end cap 5.On the gusset place of spool 7 cylindrical, bar shaped seal spool 9 is housed, and is provided with gas circuit 10 and is communicated with it.
End bracket enclosed 8 adopts silicone rubber material, and seal spool 9 is selected special wear-resisting, heat-resistant material for use.Pneumatic mechanism is set, can makes it to compress, strengthen sealing effect by air inlet nozzle 4 to end bracket enclosed 8 inflations with spool.Can intermittently inflate to seal spool 9 by axis hole, gas circuit 10, instruction venting in 1 second earlier, 90 ° of hold down gags of actuator's rotational valve core are inflated again, compress valve body by air pressure, and leak-down rate can be ignored.
After valve body 6 endoporus adopt chromium plating, but correct grinding increases the degree of finish corrosion protection.
Claims (4)
1, a kind of pillar rotary pneumatic seal type four-way switching valve is characterized in that: spool (7) is housed in columnar valve body (6), and valve body (6) two ends are equipped with end cap (5), bearing (3) is housed on the end cap (5) and compresses sealing by little end cap (2); Spool (7) is connected with axle (1), and the two ends of axle are installed in the bearing (3), between spool (7) and the end cap (5) end bracket enclosed (8) are installed also, and air inlet nozzle (4) also is installed on the end cap; Seal spool (9) is installed on the spool (7) and is provided with gas circuit (10), be communicated with seal spool (9) by axis hole, gas circuit.
2, pillar rotary pneumatic seal type four-way switching valve according to claim 1 is characterized in that: four ventilating hole sectional shapes of valve body (6) are for oval.
3, pillar rotary pneumatic seal type four-way switching valve according to claim 1, it is characterized in that: valve body (6) bore area is handled through chromium plating.
4, pillar rotary pneumatic seal type four-way switching valve according to claim 1 is characterized in that: end bracket enclosed (8) adopts silicone rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232849 CN2545444Y (en) | 2002-05-22 | 2002-05-22 | Post type rotary pneumatic seal four-way switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232849 CN2545444Y (en) | 2002-05-22 | 2002-05-22 | Post type rotary pneumatic seal four-way switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2545444Y true CN2545444Y (en) | 2003-04-16 |
Family
ID=33708132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02232849 Expired - Fee Related CN2545444Y (en) | 2002-05-22 | 2002-05-22 | Post type rotary pneumatic seal four-way switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2545444Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851224A (en) * | 2012-11-29 | 2014-06-11 | 中核建中核燃料元件有限公司 | Tee joint reversing valve |
| CN108397572A (en) * | 2018-03-14 | 2018-08-14 | 江苏中关村科技产业园节能环保研究有限公司 | A kind of rotary type four-way reversal valve using height pressure differential |
-
2002
- 2002-05-22 CN CN 02232849 patent/CN2545444Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851224A (en) * | 2012-11-29 | 2014-06-11 | 中核建中核燃料元件有限公司 | Tee joint reversing valve |
| CN108397572A (en) * | 2018-03-14 | 2018-08-14 | 江苏中关村科技产业园节能环保研究有限公司 | A kind of rotary type four-way reversal valve using height pressure differential |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |