CN2418292Y - Suspension-type pneumatic-controlled two-position four-way backward slide valve - Google Patents
Suspension-type pneumatic-controlled two-position four-way backward slide valve Download PDFInfo
- Publication number
- CN2418292Y CN2418292Y CN 00223022 CN00223022U CN2418292Y CN 2418292 Y CN2418292 Y CN 2418292Y CN 00223022 CN00223022 CN 00223022 CN 00223022 U CN00223022 U CN 00223022U CN 2418292 Y CN2418292 Y CN 2418292Y
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- CN
- China
- Prior art keywords
- slide valve
- gas circuit
- hole
- valve seat
- sliding spool
- 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
The utility model relates to a suspension type pneumatic-control two-position four-way backward slide valve which comprises a slide valve seat 1, a slide valve cap 2 and a slide valve core 3, wherein the slide valve cap is provided with an admission opening and a blowhole, and a shock absorption ring 4 is arranged at the inside of the slide valve cap; the slide valve seat is provided with an air supply hole 13 and two pairs of symmetrical air passage through holes 11, 12; two air passage through channels 31, 32 which are matched with the symmetrical air passage through holes on the slide valve seat 1 are arranged on the slide valve core 3. A groove 33 between the two air passage through channels 31, 32 is communicated with an I-groove on the corresponding surface through an air hole 35, and a pin slot 36 is arranged in the center of the slide valve core 3. The utility model has the advantages of simple structure, small volume, light weight and sensitive reaction without any blind area for movement.
Description
The utility model relates to a kind of guiding valve, the reverse guiding valve of particularly a kind of floated gas control two-position four-way.
Gas control two-position four-way guiding valve at present commonly used is that the slide valve buckle two ends on the slide valve seat are provided with slide valve cover, observe plug screw, and slide valve buckle is provided with through hole, in be provided with sliding spool, its sliding spool is provided with step surface, and the O RunddichtringO is adopted in the sealing of whole valve body.The guiding valve of this structure has the following disadvantages: 1, complex structure, and volume is big, Heavy Weight; 2, owing to adopting the sealing of O RunddichtringO, so Maximum operating pressure, minimum pilot pressure and the highest minimum operating temperature all are restricted; 3, because the factor of self structure, the fretting wear of sliding spool and slide valve buckle kinematic pair is inevitable, and it is bigger, so the turn around time of sliding spool is long, reaction sensitivity is poor, and there is long motion dead band in especially this structure, sliding spool easily takes place to be within the dead zone range, particularly in the low easier generation of working pressure, so, have to be provided with two and observe plug screw for easy to maintenance.
The purpose of this utility model is to provide a kind of simple in structure, reverse guiding valve of floated gas control two-position four-way of not having the motion dead band.
The utility model is achieved in that the reverse guiding valve of a kind of floated gas control two-position four-way, and it comprises slide valve seat, slide valve cover, sliding spool, it is characterized in that: described slide valve cover is provided with inlet hole and spiracle, and its inboard is provided with damping ring; Described slide valve seat is provided with air source hole and two pairs of symmetrical gas circuit through holes; Described sliding spool be provided with two with described slide valve seat on the gas circuit groove of symmetrical gas circuit through hole coupling, the groove between two gas circuit grooves communicates with obverse I-groove through pore, also is provided with cotter slot at described sliding spool center.
The symmetrical gas circuit through hole of two couple on the described slide valve seat is with respect to the air source hole symmetry, and four gas circuit through holes equate with the aperture of air source hole, and the adjacent holes center distance is the twice aperture.
Because the groove on sliding spool communicates with I-groove, then the pressure in two gas chamber equates constantly, borrowing the difference of both pressure-bearing surface areas to multiply by working pressure makes it equal sliding spool gravity, all the other are sealed up two chambers by fitting surface between sliding spool and the slide valve seat and lubricant film, thereby sliding spool is in state of equilibrium in theory, the stressed sum of its all directions is zero, and sliding spool is just as being suspended in the slide valve buckle; Because the gas circuit through hole on the slide valve seat is corresponding with the gas circuit groove coupling of sliding spool, have only a dead center position in stroke range again, from probability, the probability that the dead point takes place is zero, thereby has guaranteed the usability of moving element.
In sum, the utlity model has following advantage:
1, the utility model is simple in structure, and volume is little, and is in light weight;
2, the utility model has been given up seal ring, and adopts the faying surface sealing of kinematic pair, and the working pressure peak is more than existing guiding valve height, and is same owing to do not adopt seal ring, and it is much wide that the serviceability temperature scope of guiding valve is also wanted;
3, sliding spool of the present utility model is a state of suspension, and then friction becomes very small, so minimum pilot pressure is much smaller, the regulation range of working pressure is much bigger;
4, the utility model is quick on the draw, and does not have the motion dead band.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1, the utility model embodiment's 1 structural representation;
The structural representation of sliding spool among Fig. 2, Fig. 1;
Fig. 3, be the worm's eye view of Fig. 2;
Fig. 4, be the plan view of Fig. 2.
Referring to accompanying drawing 1 as can be known: the reverse guiding valve of a kind of floated gas control two-position four-way, it comprises slide valve seat 1, slide valve cover 2, sliding spool 3, it is characterized in that: described slide valve cover 2 is provided with inlet hole 21A, 21B and spiracle 22A, 22B, and its inboard is provided with damping ring 4; Described slide valve seat 1 is provided with air source hole 13 and two pairs of symmetrical gas circuit through holes 11,12; Described sliding spool 3 be provided with two with described slide valve seat 1 on the gas circuit groove 31,32 of symmetrical gas circuit through hole 11,12 coupling, the groove 33 that two gas circuit grooves are 31,32 communicates with obverse I-groove 34 through pore 35, also being provided with cotter slot 36 at described sliding spool 3 centers, is in order to prevent the sliding spool rotation.
The symmetrical gas circuit through hole 11,12 of two couple on the described slide valve seat 1 is with respect to air source hole 13 symmetries, and four gas circuit through holes 11,12 equate with the aperture of air source hole 13, and adjacent holes 11 and 13,12 and 13 center distance are the twice aperture.
It can also be seen that from Fig. 1: gas circuit through hole 12 is in the air inlet state, and the gas circuit through hole symmetrical with it is by the sealing of sliding spool 3 step surfaces, and two symmetrical gas circuit through holes 11 communicate, and are in exhaust condition; When right side inlet hole 21B air inlet, sliding spool 3 is moved to the left, and makes gas circuit through hole 11 be in the air inlet state, and the gas circuit through hole symmetrical with it is by the sealing of sliding spool 3 step surfaces, and two symmetrical gas circuit through holes 12 communicate, and are in exhaust condition; When left side inlet hole 21A air inlet, sliding spool 3 moves right, and is in state as shown in Figure 1 again, finishes a work cycle process, reaches the gas control commutation.
Since during the inlet hole 21B air inlet on the slide valve cover 2 be in the gas circuit groove 31 on the communicating state sliding spool 3, the heteropleural that the gas circuit through hole 11 on the slide valve seat 1 is in the guiding valve center line this moment, so the utility model is called reverse guiding valve, in use, inlet hole 21A and gas circuit through hole 12, inlet hole 21B and gas circuit through hole 11 should be connected on the same half side of clutch release slave cylinder.
Claims (2)
1, the reverse guiding valve of a kind of floated gas control two-position four-way, it comprises slide valve seat (1), slide valve cover (2), sliding spool (3), it is characterized in that: described slide valve cover (2) is provided with inlet hole (21A, 21B) and spiracle (22A, 22B), and its inboard is provided with damping ring (4); Described slide valve seat (1) is provided with air source hole (13) and two pairs of symmetrical gas circuit through holes (11,12); Described sliding spool (3) be provided with two with described slide valve seat (1) on the gas circuit groove (31,32) of symmetrical gas circuit through hole (11,12) coupling, groove (33) between two gas circuit grooves (31,32) communicates with obverse I-groove (34) through pore (35), also is provided with cotter slot (36) at described sliding spool (3) center.
2, the reverse guiding valve of floated gas control two-position four-way as claimed in claim 1, it is characterized in that: the symmetrical gas circuit through hole of two couple on the described slide valve seat 1 (11,12) is with respect to air source hole (13) symmetry, and four gas circuit through holes (11,12) equate with the aperture of air source hole (13), and the adjacent holes center distance is the twice aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223022 CN2418292Y (en) | 2000-05-12 | 2000-05-12 | Suspension-type pneumatic-controlled two-position four-way backward slide valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223022 CN2418292Y (en) | 2000-05-12 | 2000-05-12 | Suspension-type pneumatic-controlled two-position four-way backward slide valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418292Y true CN2418292Y (en) | 2001-02-07 |
Family
ID=33587642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00223022 Expired - Fee Related CN2418292Y (en) | 2000-05-12 | 2000-05-12 | Suspension-type pneumatic-controlled two-position four-way backward slide valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418292Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660623B (en) * | 2009-09-30 | 2012-01-25 | 四川锦宇化机有限公司 | Multiple-stage reversal valve and multiple-stage purging system |
| CN101233029B (en) * | 2005-07-29 | 2012-02-08 | 罗伯特·博世有限公司 | Vehicle brake system having a pump |
-
2000
- 2000-05-12 CN CN 00223022 patent/CN2418292Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233029B (en) * | 2005-07-29 | 2012-02-08 | 罗伯特·博世有限公司 | Vehicle brake system having a pump |
| CN101660623B (en) * | 2009-09-30 | 2012-01-25 | 四川锦宇化机有限公司 | Multiple-stage reversal valve and multiple-stage purging system |
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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 |