CN1031365C - Combination type sliding valve - Google Patents
Combination type sliding valve Download PDFInfo
- Publication number
- CN1031365C CN1031365C CN 93107894 CN93107894A CN1031365C CN 1031365 C CN1031365 C CN 1031365C CN 93107894 CN93107894 CN 93107894 CN 93107894 A CN93107894 A CN 93107894A CN 1031365 C CN1031365 C CN 1031365C
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- piston chamber
- combination type
- type sliding
- passage
- face
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- Sliding Valves (AREA)
Abstract
The present invention relates to a combined slide valve which is used for the automatic flow division of fluid, the automatic pulse generation and micro distribution. The combined slide valve adopts the connection scheme that a transition channel is attached to a riding channel to replace the connection scheme of an oblique hole in the prior art to provide the communication between adjacent slide valve cavities in a valve body. Thus, the parallel spacing distance between the slide valve cavities on the valve body can be shortened, the slide valve cavity can have a small diameter, and the travel of a slide valve core to be shortened. Accordingly, the volume of the valve body can be reduced, the micro distribution can be realized, and the processing technology can be greatly improved.
Description
The present invention relates to the technical field that fluid distributes, is a kind of compact structure, the combination type sliding valve that is active in one's movements.Automatic shunting, the autompulse that can be used for fluid takes place, the trace of fluid is supplied with.
Existing multipath fluid distribution device chip arranged with the piece formula, be " the multiple spot automatic sequence lubricating fitting " of the piece formula of CN2048551U as PSQ matrix formula oilier and notification number.Though the fluid distributor of chip stack is more convenient on minute way changes, and costs the heart at seal aspect and treat under high-pressure situations, structure is more complicated also; The multi-path fluid distributor of piece formula, its communication that is loaded with between the piston chamber of guiding valve is to connect by oblique through hole, as piston chamber is many each other is parallel, just the shaft axis of the shaft axis of oblique through hole and two piston chambers is the oblique of a straight line and two parallel lines, article two, the spacing between the parallel lines more little (leaning on closely more), skew angle is also more little, and tiltedly the oblique mouth of through hole two ends is long more, the manufacturability of processing is poor, is difficult to process the less piston chamber of spacing each other.If tiltedly two oblique mouths of through hole are shortened along the axial distance of piston chamber, can reduce the stroke of sliding spool like this, realize that trace distributes, but the bore process of prior art is difficult to realize this point.Dwindle the diameter of piston chamber in addition, the valve body overall volume is dwindled, can realize that also trace distributes, but it is bigger accurately to get out oblique through hole difficulty to the piston chamber of minor diameter, also is that the technology of prior art is difficult to be competent at.So prior art is difficult to make the structure of valve body to become compact, is difficult to also realize that micrometeor distributes, and mainly is the restriction that is subjected to beating oblique via process.
On the other hand, in the prior art, when sliding spool and positioning element offset and contact, see so that aspectant plane contact comparatively more, like this, because pressured fluid is less with respect to the active area of sliding spool end face, need higher liquid pressure when guiding valve starts, this also is the shortcoming that exists in the prior art.
The objective of the invention is to, by shortening the parallel interval distance between the existing combination type sliding valve piston chamber, shorten sliding spool stroke, dwindle the internal diameter of piston chamber etc., make the piston chamber overall structure become compact, thereby dwindle the volume of combination type sliding valve on the whole, can also realize micro-distributing fluids, improved manufacturability, improved the yield rate of product, made the stroke of the diameter of piston chamber and sliding spool unrestricted simultaneously.
Another object of the present invention is, reduces the start liquid pressure of sliding spool action, improves the working sensitivity of combination type sliding valve, makes guiding valve become more easily sensitive from the static action that becomes motion.
A further object of the present invention is to release a kind of compact structure, can increase the combination type sliding valve that distributes way, valve body to be shaped as cylindrical or multi-edge column-shaped.
The solution of the present invention is, the communication scheme that replaces oblique through hole in the prior art with a kind of communication scheme that is referred to as meaning " passage of riding ", like this, the span between adjacent two piston chambers that are connected is shortened greatly, the overall volume of combination type sliding valve is obviously dwindled.As to shorten spool travel and to dwindle the measures such as internal diameter of piston chamber, then volume dwindle more obviously, the distribution that can also make fluid is traceization more.
Combination type sliding valve of the present invention includes valve body, be positioned at many piston chambers of valve body, be positioned at piston chamber sliding spool, be positioned at the guiding valve positioning element of piston chamber two ends and be positioned at technology plug on the valve body perisporium.Have with described piston chamber to be the transition passage that is arranged in parallel substantially in described valve body, in order to link up the passage of riding of piston chamber, a part of and described piston chamber is linked up, and a part of and described transition passage is linked up mutually.The described passage of riding is vertical substantially with described piston chamber, and the described passage of riding is also vertical substantially with described transition passage.
About transition passage, the arrangement of passage and piston chamber of riding has multiple: 1. when valve body is the square shape, described each transition passage and two passages of riding connect, the plane of being formed by the transition passage shaft axis and the plane of being formed by the piston chamber shaft axis not at grade, the antarafacial scheme of arranging just; 2. can also arrange that so promptly all piston chambers and transition passage are disposed in same plane during for box-shaped when valve body; 3. when valve body is cylindricality (cylindrical body, multiedge cylinder), described piston chamber and transition passage are radial spaced apart about the shaft axis of valve body, the cylndrical surface that described piston chamber shaft axis is formed has different diameters with the cylndrical surface that described transition passage shaft axis is formed, that is to say, be antarafacial and arrange; 4. another kind of layout also can be arranged when valve body is cylindricality, and the cylndrical surface that cylndrical surface that promptly described piston chamber shaft axis is surrounded and described transition passage shaft axis are surrounded is same cylndrical surface, that is to say, they have same radius.No matter be box-shaped valve body or cylindrical or multi-edge column-shaped valve body, the described passage of riding all is substantially with the shaft axis of described piston chamber and transition passage and is arranged vertically.
End face about positioning element and sliding spool contacts, be aspectant contact in the prior art, such layout is because pressured fluid is little to the active area of sliding spool end face positive pressure, sliding spool starts required liquid pressure and wants big, and in the solution of the present invention, adopt the scheme of some contact, promptly sliding spool and positioning element aspectant contact to boring sharp to the contact of plane or sphere to the plane.Liquid effects just increases in the positive pressure area of sliding spool end face like this, thereby has reduced to make the liquid required pressure of sliding spool from static to startup, makes the action of guiding valve become sensitive.Awl point and sphere can be arranged on the sliding spool termination and also can be arranged on the positioning element.
Be provided with the technology plug for the transition passage and the tunnel ends envelope of riding on the periphery wall of valve body, at two ends of piston chamber, described positioning element had both played the effect into the sliding spool location, played the effect of making plug for piston chamber again.
Below in conjunction with embodiment and accompanying drawing the present invention is narrated.
Description of drawings:
Fig. 1 is a structure principle chart of the present invention.
Fig. 2 is the first embodiment of the present invention (a square valve body).
Fig. 3 is the second embodiment of the present invention (cylinder shape valve).
Combination type sliding valve of the present invention is by valve body 1, many the piston chambers 2 that directly come outbreak out in the valve body, sliding spool 3 in the piston chamber 2, the positioning element 4 that two ends in the piston chamber 2 are opened on the hole is formed, and positioning element 4 not only had been used to sliding spool 3 location but also had been used as the plug of piston chamber 2.Be furnished with many transition passages 5 in valve body 1, it and piston chamber 2 are and are arranged in parallel, and also are directly to be drilled to the hole from valve body 1 ecto-entad, each bar transition passage 5 on two opposite tip position, have the perpendicular passage 6,6 of riding that intersects and connect '.Each passage 6,6 of riding ' its part connects with described transition passage 5, another part then connects with described piston chamber 2, like this, by transition passage 5 with near the passage 8 of riding of valve body 1 inboard ' and make between two adjacent piston chambers 2 near the passage 6 of riding in valve body 1 outside and to communicate with each other.
Positioning element 4 and 4 ' be pointed shape of awl and hemisphere face shape respectively towards that sides of sliding spool 3 end faces, like this, when the end face of sliding spool 3 and positioning element offset, be a contact, fluid is increased with respect to the positive pressure area of sliding spool 3 end faces, comparatively speaking, reduced and make sliding spool 3 change the required liquid pressure of starting state into from state of rest.
The first embodiment of the present invention as shown in Figure 2, its valve body 1 is a box-shaped, be drilled with many piston chambers 2 and many transition passages 5 thereon, piston chamber 2 formed planes and transition passage 5 formed planes are that antarafacial is arranged, position between described piston chamber 2 and transition passage 5 has the vertical passage 6,6 ' with it of riding to connect, the described passage 6,6 of riding ' half and described piston chamber 2 connect, its second half and described transition passage 5 connect.
The second embodiment of the present invention as shown in Figure 3, its valve body 1 is cylindrical, be radial arrangement about shaft axis thereon many piston chambers 2 and many transition passages 5 are arranged, piston chamber 2 is alternate layout with transition passage 5, the cylndrical surface that shaft axis surrounded of piston chamber 2 has different radiuses with the cylndrical surface that shaft axis surrounded of transition passage 5, being antarafacial arranges, with the passage 8,6 of riding of described piston chamber 2 and transition passage 5 perpendicular crossing perforations ' from the outer surface of valve body from outside inwards boring be shaped, it had not only connected with piston chamber 2 but also with transition passage 5.
From above two embodiments, and though the passage 6 of riding of the present invention, 6 ' square shaped valve body or cylindrical valve body add man-hour all be along the normal direction of its outer surface from outside boring inwards, technology is more convenient.Even the piston chamber diameter is less, guarantee to allow ride passage 6,6 ' and piston chamber 2 and transition passage 5 between accurate location connect and be not difficult; Also have, piston chamber 2 span is each other dwindled greatly, make the overall volume of valve body become compact like this.In addition, control the passage 6,6 of riding ' relative distance (just being equivalent to the relative distance between two oblique mouths of oblique through hole two ends in the prior art) have no technical difficulty for purposes of the invention, so, the stroke of its plunger of combination type sliding valve of the present invention is Design and Machining arbitrarily, realizes that the micrometeor distribution ratio is more convenient.In sum, the present invention makes overall compactization to dwindling valve volume, and realizes that there is obvious effects aspect such as micrometeor distribution, and processing technology also obviously optimizes, and oversimplifies, and machining accuracy improves.
Claims (10)
1. combination type sliding valve, it includes valve body, is positioned at many piston chambers of valve body, be positioned at the sliding spool of piston chamber, be positioned at piston chamber two ends positioning element and be positioned at the technology plug of valve body surface, between piston chamber, have passage that they are communicated with each other, it is characterized in that:
A. have with described piston chamber to be the transition passage that is arranged in parallel substantially in described valve body, it is linked up mutually with two adjacent piston chambers respectively;
B. the passage with transition passage and piston chamber communication is the passage of riding, it is perpendicular with the plane or the face that encloses that are become by each piston chamber shaft axis, also with perpendicular by the plane that shaft axis became of described each transition passage or the face that encloses, its part is linked up with described piston chamber, and a part of and described transition passage is linked up mutually.
2. combination type sliding valve as claimed in claim 1, it is characterized in that: the face that encloses that described piston chamber shaft axis is surrounded is a cylinder, the face that encloses that shaft axis surrounded of described transition passage also is a cylinder, and described two cylinders are same cylinders of identical the two unification of radius.
3. combination type sliding valve as claimed in claim 2 is characterized in that: the face that encloses of described piston chamber shaft axis is two cylinders that radius is different with the face that encloses of described transition passage shaft axis.
4. combination type sliding valve as claimed in claim 1 is characterized in that: the shaft axis of described piston chamber is on the same sheet of planar, and the shaft axis of described transition passage also is in same sheet of planar, and two above-mentioned sheet of planar are the relation that is parallel to each other.
5. combination type sliding valve as claimed in claim 1 is characterized in that: its all shaft axiss of described piston chamber and transition passage are in the same plane.
6. combination type sliding valve as claimed in claim 1 is characterized in that: described transition passage and two passages of riding intersect perforation.
7. combination type sliding valve as claimed in claim 1 is characterized in that: described positioning element has the shape of cone towards that side of sliding spool.
8. combination type sliding valve as claimed in claim 1 is characterized in that: described positioning element is the hemisphere face shape towards that side of sliding spool.
9. combination type sliding valve as claimed in claim 1 is characterized in that: described sliding spool has the shape of cone towards that end face of positioning element.
10. combination type sliding valve as claimed in claim 1 is characterized in that: described sliding spool is the hemisphere face shape towards that end face of positioning element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107894 CN1031365C (en) | 1993-07-02 | 1993-07-02 | Combination type sliding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93107894 CN1031365C (en) | 1993-07-02 | 1993-07-02 | Combination type sliding valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1097050A CN1097050A (en) | 1995-01-04 |
| CN1031365C true CN1031365C (en) | 1996-03-20 |
Family
ID=4986920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93107894 Expired - Fee Related CN1031365C (en) | 1993-07-02 | 1993-07-02 | Combination type sliding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031365C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357656C (en) * | 2002-12-02 | 2007-12-26 | 林肯有限公司 | Progressive distributor comprising displaceable pistons |
| CN100464109C (en) * | 2006-06-15 | 2009-02-25 | 王东升 | Valve type oil feeder |
| CN101251225B (en) * | 2008-04-09 | 2011-07-20 | 义小毛 | Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8960236B2 (en) * | 2010-05-27 | 2015-02-24 | Graco Minnesota Inc. | Bypass piston port and methods of manufacturing a bypass piston port for a series progressive divider valve |
| AU2015202534B2 (en) * | 2010-05-27 | 2017-02-23 | Graco Minnesota Inc. | Piston bores and methods of manufacturing piston bores for a series progressive divider valve |
| AU2015202519B2 (en) * | 2010-05-27 | 2016-11-10 | Graco Minnesota Inc. | Bypass piston port and methods of manufacturing a bypass piston port for a series progressive divider valve |
| JP6043409B1 (en) * | 2015-07-10 | 2016-12-14 | Ｋｙｂ株式会社 | Rod member and valve device |
| CN105221511B (en) * | 2015-11-20 | 2017-06-06 | 广东水利电力职业技术学院 | A kind of pneumatic step-by-step impulse stroke valve |
-
1993
- 1993-07-02 CN CN 93107894 patent/CN1031365C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357656C (en) * | 2002-12-02 | 2007-12-26 | 林肯有限公司 | Progressive distributor comprising displaceable pistons |
| CN100464109C (en) * | 2006-06-15 | 2009-02-25 | 王东升 | Valve type oil feeder |
| CN101251225B (en) * | 2008-04-09 | 2011-07-20 | 义小毛 | Hydraulic pressure pressure-regulating automatic reverse combined valve for double line grease lubricating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1097050A (en) | 1995-01-04 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |