CN202992269U - Improved rotary type four-way fluid reversing valve - Google Patents
Improved rotary type four-way fluid reversing valve Download PDFInfo
- Publication number
- CN202992269U CN202992269U CN 201220665154 CN201220665154U CN202992269U CN 202992269 U CN202992269 U CN 202992269U CN 201220665154 CN201220665154 CN 201220665154 CN 201220665154 U CN201220665154 U CN 201220665154U CN 202992269 U CN202992269 U CN 202992269U
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- China
- Prior art keywords
- valve
- way fluid
- improved rotary
- spool
- rotary type
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- Expired - Lifetime
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Abstract
The utility model relates to an improved rotary type four-way fluid reversing valve. The improved rotary type four-way fluid reversing valve comprises a valve body, a valve core and a driving device, wherein the driving device is connected with the valve core through a coupling joint I, a coupling joint II and a shaft which is mounted on the valve core, and drives the valve core to rotate. The improved rotary type four-way fluid reversing valve is characterized in that the valve core is a cylinder with an I-shaped section; and U-shaped grooves capable of mounting sealing rings are formed in the upper surface and the lower surface of the cylinder. After the valve core is mounted in the valve body, and the inner wall of the cavity of the valve body extrudes the sealing rings, so the two parts, divided by the valve core, of the hollow cavity of the valve body are sealed completely and respectively. The improved rotary type four-way fluid reversing valve has high sealing property, can greatly extend the conveying distance of sample boxes, accelerates the operating speed of the sample boxes, and is high in stability, simple in structure and simple to manufacture.
Description
Technical field
The utility model relates to and is applied to the pneumatic pipe transportation art, relates to a kind of fluid reversing device, particularly relates to a kind of improved rotary four-way fluid selector valve with high leak tightness and high reliability.
Background technique
At present, the rotary type four-way fluid diverter valve of using in the pneumatic pipe transporting system, its valve core structure is as shown in Figure 4, valve body is a cylindrical body, along having through hole on axis, the selector valve of this structure exists the sealing of spool and valve body poor, gas leakage mutually between four cavitys, produce power loss, energy waste cause manifold pressure to descend, when pressurized air promotion sample box moves ahead, speed and the distance of the operation of sample box reduce greatly, the requirement of can not satisfy long distance, carrying fast.In addition, the analytic method curved surface job insecurity on the shaft coupling of existing rotary type four-way fluid diverter valve, manufacturing difficulty.
Summary of the invention
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of good seal performance is provided, and working stability is made simple improved rotary four-way fluid selector valve.
The purpose of this utility model is to realize by following technical proposals:
A kind of improved rotary four-way fluid selector valve, comprise valve body, spool and drive unit, described drive unit is connected by the axle of installing on shaft coupling I and shaft coupling II and spool and drives valve core rotation, it is characterized in that: the cross section of described spool is the cylindrical body of " work " font, and its cylindrical body has " U " type groove that seal ring can be installed on top and bottom.
The centre of the described spool both ends of the surface of winning in succession have the T-shape groove that special sealing ring can be installed, and described special sealing ring is the inboard T-shape boss that is provided with spool T-shape groove tabling.
The disc cam profile of described shaft coupling I is " heart " shape curve.
Improved rotary four-way fluid selector valve of the present utility model has following technical characterstic:
1, spool design being become the cross section is the cylindrical structure of " work " font, " U " type of the top and bottom of cylndrical surface processing simultaneously groove, seal ring is packed in above-mentioned groove, after spool is packed valve body into, the cavity inner wall extruding sealing circle of valve body, realize two-part sealing fully each other that the hollow cavity of valve body is cut apart by spool, can reach primary seal; On simultaneously winning both ends of the surface in succession in the centre of spool, processing T-shape groove, install the T-shape Stamping Steel Ribbon in the T-shape groove, and in the time of can preventing Spool rotating, rolling, twisted phenomena appear in Stamping Steel Ribbon.Above-mentioned improvement can extend 500～550 meters of the fed distance of sample box, and the motion speed of sample box is brought up to 10 meter per seconds by original 8 meter per seconds.
2, the utility model is designed to " heart " type curve with the disc cam on shaft coupling I 6, can guarantee that 2 detecting switches only have a switch to be in the state of compression under normal circumstances, if it is simultaneously compacted 2 detecting switches to occur, equipment will reach the Times fault, stops follow-up equipment to start." heart " type curve and detecting switch are used in combination, and testing signal is fed back to PLC, by PLC, condition monitoring are constantly realized in the position of spool in the four-way fluid selector valve.
In sum, improved rotary four-way fluid selector valve good airproof performance of the present utility model, the fed distance that can greatly extend the sample box improves the motion speed of sample box, and good stability, simple in structure, make simple.
Description of drawings
Fig. 1 is selector valve cross-sectional view after improving;
Fig. 2 is the A-A cross-sectional view in Fig. 1;
Fig. 3 is the B-B cross-sectional view in Fig. 1;
Fig. 4 is original change-over valve core structural representation;
Fig. 5 is new change-over valve core structural representation;
Fig. 6 is the sectional view of Fig. 5;
Fig. 7 is original reversing valve connecting joint cam structure schematic diagram;
Fig. 8 is new reversing valve connecting joint cam structure schematic diagram;
Fig. 9 is the sealing ring structure special schematic diagram;
Figure 10 is the sectional view of Fig. 9.
Embodiment
Below in conjunction with accompanying drawing, structure of the present utility model is described.
Improved rotary four-way fluid selector valve of the present utility model mainly by valve body 1, be arranged on spool 2 in valve body, be arranged on the upper end cap 3 at valve body 1 two ends and lower end cap 4 and drive unit 5 and form.The inside of described valve body 1 is a cylinder type hollow cavity, and the hole I, hole II, hole III and the hole IV that communicate with hollow cavity are arranged on it, and these four holes are symmetrically distributed on valve body.Described drive unit 5 is connected with the shaft coupling II by shaft coupling I 6 and is connected with the axle 9 installed on spool 2 and is with movable valve plug 2 rotations.Improvements are: spool 2 is designed to the cross section for the cylindrical body of " work " font, has " U " type groove on its upper and lower cylndrical surface, in groove, seal ring 8 can be installed.The centre of the spool processing T-shape groove on both ends of the surface of winning in succession is arranged on special sealing ring in groove.Special sealing ring as shown in Figure 9, structure for its inboard be provided with can with the chimeric T-shape of T-shape groove on spool projection.Spool is packed into after valve body, and the cavity inner wall extruding special sealing ring of valve body is realized sealing.
Another improvements of the present utility model are: the Disc Cams of Design on shaft coupling I 6 is become " heart " shape curve.
Claims (3)
1. improved rotary four-way fluid selector valve, comprise valve body (1), spool (2) and drive unit (5), described drive unit (5) is connected 7 by shaft coupling I (6) with the shaft coupling II) be connected and be with movable valve plug (2) to rotate with the upper axle (9) of installing of spool (2), it is characterized in that: the cross section of described spool (2) is the cylindrical body of " work " font, and its cylindrical body has " U " type groove that seal ring can be installed on top and bottom.
2. according to improved rotary four-way fluid selector valve claimed in claim 1, it is characterized in that: the centre of described spool (2) both ends of the surface of winning in succession have the T-shape groove that special sealing ring can be installed, and described special sealing ring is the inboard T-shape boss that is provided with spool T-shape groove tabling.
3. according to improved rotary four-way fluid selector valve claimed in claim 1, it is characterized in that: the disc cam profile of described shaft coupling I (6) is " heart " shape curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665154 CN202992269U (en) | 2012-12-06 | 2012-12-06 | Improved rotary type four-way fluid reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220665154 CN202992269U (en) | 2012-12-06 | 2012-12-06 | Improved rotary type four-way fluid reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992269U true CN202992269U (en) | 2013-06-12 |
Family
ID=48563450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220665154 Expired - Lifetime CN202992269U (en) | 2012-12-06 | 2012-12-06 | Improved rotary type four-way fluid reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966762A (en) * | 2012-12-06 | 2013-03-13 | 银川东方运输设备有限公司 | Improved rotary four-way fluid reversing valve |
-
2012
- 2012-12-06 CN CN 201220665154 patent/CN202992269U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966762A (en) * | 2012-12-06 | 2013-03-13 | 银川东方运输设备有限公司 | Improved rotary four-way fluid reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YINCHUAN EASTERN PNEUMATIC TRANSPORT EQUIPMENT CO. Free format text: FORMER OWNER: DONGFANG TRANSPORT APPARATUS CO., LTD., YINCHUAN CITY Effective date: 20140219 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140219 Address after: 750002, the Ningxia Hui Autonomous Region, Yinchuan Jinfeng high tech Development Zone, No. 15 West 06, South Road, No. 1 office building Patentee after: YINCHUAN DONGFANG PNEUMATIC TRANSPORT EQUIPMENT Co.,Ltd. Address before: 750002, Lunan Road, Jinfeng hi tech Development Zone, Jinfeng District, the Ningxia Hui Autonomous Region, Yinchuan 6 Patentee before: YINCHUAN DONGFANG TRANSP EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |