CN201606522U - Micro-valve - Google Patents
Micro-valve Download PDFInfo
- Publication number
- CN201606522U CN201606522U CN2009202997921U CN200920299792U CN201606522U CN 201606522 U CN201606522 U CN 201606522U CN 2009202997921 U CN2009202997921 U CN 2009202997921U CN 200920299792 U CN200920299792 U CN 200920299792U CN 201606522 U CN201606522 U CN 201606522U
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- piston
- control
- hole
- valve
- annular
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Abstract
The utility model discloses a micro-valve, which comprises a valve body, wherein the valve body internally comprises a valve cavity, an inflow channel and an outflow channel, and the left end and the right end of the valve cavity are stuffed with a left plug and a right plug; a valve stem is sleeved in the valve cavity, and an active piston is arranged at the top end of the valve stem; a control piston is arranged at the front side of the active piston, and annular steps are arranged at the left end and the right end of the control piston; a control through hole is arranged at the center of the control piston, and an oil inlet of the control through hole is positioned on the annular wall of the annular step at the left side; an oil outlet of the control through hole is positioned on the right end surface of the control piston, and an adjusting piston is arranged at the right side of the control piston; an annular cylinder matched with the control through hole is arranged at the left end of the adjusting piston, and an adjusting port is arranged on the annular wall of the annular cylinder; the annular cylinder extends into the control through hole and can move around in the control through hole, and an annular transition step is arranged at the right end of the annular cylinder; a spring groove is arranged at the right end of the adjusting piston, and a spring is arranged in the spring groove; and the outer end of the spring is propped against the right plug. The utility model has simple structure, reliable operation and few faults and can effectively reduce microstroke.
Description
Technical field:
The utility model relates generally to a kind of 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 along with the improving constantly of technology, a kind of inching valve that under the prerequisite that does not change the interface size, shortens microstroke of demand on the market.
The model utility content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of inching valve that can shorten microstroke to be provided.
The utility model is achieved through the following technical solutions:
A kind of 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: be set with valve rod in the described valve pocket, valve stem tip has active piston, and the through hole that valve rod rear end passes on the left plug stretches out outside the valve pocket, be set with control spring on the described valve rod, described control spring two ends are against respectively on left plug and the active piston; There is control piston described active piston front side, the left and right two ends of described control piston are equipped with ring-shaped step, there is the control through hole at described control piston center, and the oiler of described control through hole is positioned on the annular wall of left side ring-shaped step, and the oil outlet of control through hole is positioned on the right side of control piston; Described control piston right side is provided with regulating piston, and described regulating piston left end is and the ring tube that cooperates of control through hole, have on the annular wall of described ring tube to regulate mouthful, described ring tube stretch in the control through hole also can be in controlling through hole move left and right; Described ring tube right-hand member is provided with the transition shoulder of annular; Described regulating piston right-hand member is provided with spring groove, is placed with spring in the described spring groove, and described spring outer end is against on the right plug; Be formed with the oil suction chamber of annular between the ring-shaped step outer wall of described control piston left end and the inwall of valve body, described flow channel is connected with oil suction chamber; What be formed with annular between the inwall of the ring-shaped step outer wall of described control piston right-hand member, the transition shoulder outer wall on the regulating piston and valve body goes out oil pocket, described flow pass with go out oil pocket and be connected.
The flow path of hydraulic oil in the utility model is: hydraulic oil flows in the oil suction chamber by flow channel, and enters in the control through hole in the control piston by the oiler on the control piston, and then flows in the ring tube of regulating piston left end.At this moment, by the left and right slip in control channel of regulating piston right-hand member spring regulating ring tube, when the adjusting mouth on the ring tube shifted out control piston, hydraulic oil flowed into out in the oil pocket through regulating mouth, is finally flowed out by flow pass.
The utility model has the advantages that:
The utility model is simple in structure, reliable, and the fault of appearance is few and can effectively shorten microstroke.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
A kind of inching valve, include valve body 1, include the valve pocket of lateral direction penetrating and flow channel 2 that is communicated with valve pocket and flow pass 3 in the valve body 1, the left and right two ends of described valve pocket are plugged with left plug 4 and right plug 5 respectively, be set with valve rod 6 in the valve pocket, there is active piston 7 on valve rod 6 tops, and the through hole that valve rod 6 rear ends are passed on the left plug 4 stretches out outside the valve pocket, be set with control spring 8 on the described valve rod 6, described control spring 8 two ends are against respectively on left plug 4 and the active piston 7; There is control piston 9 described active piston 7 front sides, described control piston 9 left and right two ends are equipped with ring-shaped step, there is control through hole 10 at described control piston 9 centers, the oiler of described control through hole 10 is positioned on the annular wall of left side ring-shaped step, and the oil outlet of control through hole 10 is positioned on the right side of control piston 9; Described control piston 9 right sides are provided with regulating piston 11, described regulating piston 11 left ends are the ring tube 12 that cooperates with control through hole 10, have on the annular wall of described ring tube 12 and regulate mouthfuls 13, described ring tube 12 stretch in the control through hole 10 and can be in controlling through hole 10 move left and right; Described ring tube 12 right-hand members are provided with the transition shoulder of annular; Described regulating piston 11 right-hand members are provided with spring groove, are placed with spring 14 in the described spring groove, and described spring 14 outer ends are against on the right plug 5; Be formed with the oil suction chamber of annular between the ring-shaped step outer wall of described control piston 9 left ends and the inwall of valve body 1, described flow channel 2 is connected with oil suction chamber; What be formed with annular between the inwall of the ring-shaped step outer wall of described control piston 9 right-hand members, the transition shoulder outer wall on the regulating piston 11 and valve body goes out oil pocket, described flow pass 3 with go out oil pocket and be connected.
Claims (1)
1. 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: be set with valve rod in the described valve pocket, valve stem tip has active piston, and the through hole that valve rod rear end passes on the left plug stretches out outside the valve pocket, be set with control spring on the described valve rod, described control spring two ends are against respectively on left plug and the active piston; There is control piston described active piston front side, the left and right two ends of described control piston are equipped with ring-shaped step, there is the control through hole at described control piston center, and the oiler of described control through hole is positioned on the annular wall of left side ring-shaped step, and the oil outlet of control through hole is positioned on the right side of control piston; Described control piston right side is provided with regulating piston, and described regulating piston left end is and the ring tube that cooperates of control through hole, have on the annular wall of described ring tube to regulate mouthful, described ring tube stretch in the control through hole also can be in controlling through hole move left and right; Described ring tube right-hand member is provided with the transition shoulder of annular; Described regulating piston right-hand member is provided with spring groove, is placed with spring in the described spring groove, and described spring outer end is against on the right plug; Be formed with the oil suction chamber of annular between the ring-shaped step outer wall of described control piston left end and the inwall of valve body, described flow channel is connected with oil suction chamber; What be formed with annular between the inwall of the ring-shaped step outer wall of described control piston right-hand member, the transition shoulder outer wall on the regulating piston and valve body goes out oil pocket, described flow pass with go out oil pocket and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202997921U CN201606522U (en) | 2009-12-31 | 2009-12-31 | Micro-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202997921U CN201606522U (en) | 2009-12-31 | 2009-12-31 | Micro-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606522U true CN201606522U (en) | 2010-10-13 |
Family
ID=42951229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202997921U Expired - Fee Related CN201606522U (en) | 2009-12-31 | 2009-12-31 | Micro-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606522U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330713A (en) * | 2011-09-21 | 2012-01-25 | 杭州萧山叉车配件有限公司 | Marine gearbox inching hydraulic control valve |
| CN103482534A (en) * | 2013-09-13 | 2014-01-01 | 合肥力威汽车油泵有限公司 | Forklift inching valve |
| CN103527803A (en) * | 2013-10-29 | 2014-01-22 | 合肥今典机械科技有限公司 | End face whole-sealing structure for inching 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 |
| CN104564878A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Manual-control inching reversal valve |
-
2009
- 2009-12-31 CN CN2009202997921U patent/CN201606522U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330713A (en) * | 2011-09-21 | 2012-01-25 | 杭州萧山叉车配件有限公司 | Marine gearbox inching hydraulic control valve |
| CN102330713B (en) * | 2011-09-21 | 2013-12-04 | 杭州萧山叉车配件有限公司 | Marine gearbox inching hydraulic control valve |
| CN103482534A (en) * | 2013-09-13 | 2014-01-01 | 合肥力威汽车油泵有限公司 | Forklift inching valve |
| CN103482534B (en) * | 2013-09-13 | 2015-07-08 | 合肥力威汽车油泵有限公司 | Forklift inching valve |
| CN103527803A (en) * | 2013-10-29 | 2014-01-22 | 合肥今典机械科技有限公司 | End face whole-sealing structure for inching 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 |
| CN104564878A (en) * | 2014-12-19 | 2015-04-29 | 杭州前进齿轮箱集团股份有限公司 | Manual-control inching reversal valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HYDRAULIC FLUID MACHINERY CO., LTD. OF NBO MACHINE Free format text: FORMER NAME: ANHUI NBO MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 237451, Anhui County, Huoqiu province Hu Town Industrial Zone Patentee after: Anhui NBO Group Hydraulic Fluid Machinery Co., Ltd. Address before: 237451, Anhui County, Huoqiu province Hu Town Industrial Zone Patentee before: Anhui Lanbowang Machinery Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |