CN201606326U - Electro-hydraulic inching valve - Google Patents
Electro-hydraulic inching valve Download PDFInfo
- Publication number
- CN201606326U CN201606326U CN2009202997870U CN200920299787U CN201606326U CN 201606326 U CN201606326 U CN 201606326U CN 2009202997870 U CN2009202997870 U CN 2009202997870U CN 200920299787 U CN200920299787 U CN 200920299787U CN 201606326 U CN201606326 U CN 201606326U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve pocket
- valve rod
- annular protrusion
- hole
- 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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Abstract
The utility model discloses an electro-hydraulic inching valve which comprises a valve body. A transverse run-through valve cavity, a flow-in channel and a flow-out channel are arranged in the valve body; the flow-in channel and the flow-out channel are communicated with the valve cavity; a left choke plug and a right choke plug are respectively arranged at the left and right ends of the valve cavity, a transverse ring-cylinder shaped valve sleeve is fixedly sheathed in the valve cavity, the left end of the valve sleeve is open, and a through hole is arranged in the center of the right end wall of the valve sleeve; a valve rod is sheathed in the valve cavity, the rear end of the valve rod penetrates through the through hole on the left choke plug and stretches out of the valve cavity, the front end of the valve rod penetrates through the valve sleeve and stretches out of the through hole at the right end of the valve sleeve, a piston is fixedly sheathed at the front end of the valve rod, and a ring-shaped bulge is arranged on the valve rod; at the left side of the ring-shaped bulge, a large spring is sheathed on the valve rod; the two ends of the large spring respectively lean against the left side face of the left choke plug and the ring-shaped bulge; at the right side of the ring-shaped bulge, a small spring is sheathed on the valve rod; and the left and right ends of the small spring respectively lean against the right side face of the ring-shaped bulge and the right end face of the valve sleeve. The electro-hydraulic inching valve has the characteristics of simple structure, convenient operation and good inching effect.
Description
Technical field:
The utility model relates generally to a kind of valve body, relates in particular to a kind of electric liquid inching valve.
Background technique:
The effect of inching valve in the hydraulic system of fork truck is that the control fork truck advances or retreats small distance.The microstroke of traditional inching valve valve rod is 12mm, but improves constantly a kind of inching valve with littler microstroke of demand on the market along with technology.
The model utility content:
The utility model purpose is exactly in order to remedy the defective of prior art, and a kind of simple in structure, electric liquid inching valve that microstroke is little is provided.
The utility model is achieved through the following technical solutions:
A kind of electric liquid inching valve, include valve body, include valve pocket and the flow channel that is communicated with valve pocket and the flow pass of lateral direction penetrating in the valve body, the left and right two ends of described valve pocket are plugged with left plug and right plug respectively, it is characterized in that: described valve pocket internal fixation is set with the valve pocket of horizontal annular cylinder shape, described valve pocket left end opens wide, and valve pocket right-hand member wall center has through hole; Be set with valve rod in the described valve pocket, described valve rod rear end passes the through hole on the left plug and stretches out outside the valve pocket; Described valve rod front end passes valve pocket and stretches out outside the through hole of valve pocket right-hand member; Described valve rod front end fixed cover is equipped with piston; On the described valve rod annular protrusion is arranged, described annular protrusion left side has big spring to be sleeved on the valve rod, and described big spring two ends are against respectively on the left surface of left plug and annular protrusion; Described annular protrusion right side has little spring to be sleeved on the valve rod, and the left and right two ends of described little spring are against respectively on the right side of the right flank of annular protrusion and valve pocket.
During the utility model work, when promoting piston, moves to the right in piston rod, because the buffer function of little spring plays the effect of fine motion; In like manner, when piston rod pulling piston is mobile to the left, because the buffer function of big spring plays the effect of fine motion.
The utility model has the advantages that:
The utility model is simple in structure, and is easy to operate, and jiggle effect is good.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Embodiment:
A kind of electric liquid inching valve, include valve body 1, include valve pocket and the flow channel that is communicated with valve pocket and the flow pass of lateral direction penetrating in the valve body 1, the left and right two ends of described valve pocket are plugged with left plug 2 and right plug 3 respectively, the valve pocket internal fixation is set with the valve pocket 4 of horizontal annular cylinder shape, described valve pocket 4 left ends open wide, and valve pocket 4 right-hand member wall centers have through hole; Be set with valve rod 5 in the described valve pocket, described valve rod 5 rear ends are passed the through hole on the left plug 2 and are stretched out outside the valve pocket; Described valve rod 5 front ends pass valve pocket 4 and stretch out outside the through hole of valve pocket 4 right-hand members; Described valve rod 5 front end fixed covers are equipped with piston 6; On the described valve rod 5 annular protrusion 7 is arranged, described annular protrusion 7 left sides have big spring 8 to be sleeved on the valve rod 5, and described big spring 8 two ends are against respectively on the left surface of left plug 2 and annular protrusion 7; Described annular protrusion 7 right sides have little spring 9 to be sleeved on the valve rod 5, and described little spring 9 left and right two ends are against respectively on the right side of the right flank of annular protrusion 7 and valve pocket 4.
Claims (1)
1. electric liquid inching valve, include valve body, include valve pocket and the flow channel that is communicated with valve pocket and the flow pass of lateral direction penetrating in the valve body, the left and right two ends of described valve pocket are plugged with left plug and right plug respectively, it is characterized in that: described valve pocket internal fixation is set with the valve pocket of horizontal annular cylinder shape, described valve pocket left end opens wide, and valve pocket right-hand member wall center has through hole; Be set with valve rod in the described valve pocket, described valve rod rear end passes the through hole on the left plug and stretches out outside the valve pocket; Described valve rod front end passes valve pocket and stretches out outside the through hole of valve pocket right-hand member; Described valve rod front end fixed cover is equipped with piston; On the described valve rod annular protrusion is arranged, described annular protrusion left side has big spring to be sleeved on the valve rod, and described big spring two ends are against respectively on the left surface of left plug and annular protrusion; Described annular protrusion right side has little spring to be sleeved on the valve rod, and the left and right two ends of described little spring are against respectively on the right side of the right flank of annular protrusion and valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202997870U CN201606326U (en) | 2009-12-31 | 2009-12-31 | Electro-hydraulic inching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202997870U CN201606326U (en) | 2009-12-31 | 2009-12-31 | Electro-hydraulic inching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606326U true CN201606326U (en) | 2010-10-13 |
Family
ID=42951032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202997870U Expired - Fee Related CN201606326U (en) | 2009-12-31 | 2009-12-31 | Electro-hydraulic inching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606326U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN103527804A (en) * | 2013-10-29 | 2014-01-22 | 合肥今典机械科技有限公司 | End face sealing structure for hydraulic forklift speed changing box inching valve |
| CN104884381A (en) * | 2013-12-27 | 2015-09-02 | 株式会社小松制作所 | Forklift and forklift control method |
| CN109505816A (en) * | 2018-11-28 | 2019-03-22 | 合肥今典机械科技有限公司 | A kind of electro-hydraulic manipulation valve of light-duty agriculture vehice |
-
2009
- 2009-12-31 CN CN2009202997870U patent/CN201606326U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277360A (en) * | 2013-06-21 | 2013-09-04 | 合肥力威汽车油泵有限公司 | Electromagnetic hydraulic combined control valve |
| CN103527804A (en) * | 2013-10-29 | 2014-01-22 | 合肥今典机械科技有限公司 | End face sealing structure for hydraulic forklift speed changing box inching valve |
| CN104884381A (en) * | 2013-12-27 | 2015-09-02 | 株式会社小松制作所 | Forklift and forklift control method |
| US9624079B2 (en) | 2013-12-27 | 2017-04-18 | Komatsu Ltd. | Forklift and control method of forklift |
| CN109505816A (en) * | 2018-11-28 | 2019-03-22 | 合肥今典机械科技有限公司 | A kind of electro-hydraulic manipulation valve of light-duty agriculture vehice |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20121231 |