CN103527803A - End face whole-sealing structure for inching valve - Google Patents
End face whole-sealing structure for inching valve Download PDFInfo
- Publication number
- CN103527803A CN103527803A CN201310519327.5A CN201310519327A CN103527803A CN 103527803 A CN103527803 A CN 103527803A CN 201310519327 A CN201310519327 A CN 201310519327A CN 103527803 A CN103527803 A CN 103527803A
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- CN
- China
- Prior art keywords
- valve
- valve body
- inching
- sleeved
- rear end
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0712—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising particular spool-valve sealing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4061—Control related to directional control valves, e.g. change-over valves, for crossing the feeding conduits
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention relates to an end face whole-sealing structure for an inching valve. The shortcomings of high assembly cost and low assembly efficiency in the prior art are overcome. The end face whole-sealing structure for the inching valve comprises a slide valve, a valve body, a valve stem and a stop dog, wherein the valve stem is sleeved in the valve body through a frame oil seal; a front elastic retaining ring, a gasket and a valve stem spring are respectively sleeved on the valve stem; the front end of the slide valve and the rear end of the valve stem are arranged and sleeved in the valve body; a slide valve spring is sleeved at the rear end of the slide valve; and the stop dog is arranged at the rear end of the slide valve and is fixedly arranged in the valve body. The end face whole-sealing structure has a reliable oil sealing effect, and has the advantages of low cost, simple structure and high assembly efficiency.
Description
Technical field
The present invention relates to inching valve technical field, is a kind of end face full-closed structure for inching valve specifically.
Background technique
The inching valve that hydraulic fork lift gearbox uses at present, its tail end face sealing configuration all adopts through-hole structure, and the most general is piston sealing structure.The size of size at the bottom of inner plug outside dimension, seal groove, O RunddichtringO that the requires piston sealing structure perfection that must match with valve opening size, in order to guarantee reliable sealing effect, strict to the requirement on machining accuracy of jump-ring slot and each parts.And this sealing configuration is in practical set process, also may occur the situation that O RunddichtringO outer rim is cut off, and causes seal failure.Particularly, because the sealed member of its use is many, required precision is high, has increased assembly cost and assembling difficulty, causes work efficiency low.How to develop a kind of inching valve end face seal structure with low cost, that assembling difficulty is low and efficiency is high and become the technical problem of being badly in need of solution.
Summary of the invention
The object of the invention is in order to solve the defect that in prior art, assembly cost is high, efficiency of assembling is low, provide a kind of end face full-closed structure for inching valve to solve the problems referred to above.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of end face full-closed structure for inching valve, comprise guiding valve, valve body and be sleeved on the valve rod in valve body by outside framework oil seal, on described valve rod, be set with front circlip, pad and valve rod spring, described guiding valve front end and valve rod rear end are installed and are sleeved in valve body, described guiding valve rear end suit slide valve spring, also comprise block, described block is located at the rear end of guiding valve and is fixedly mounted in valve body.
Also comprise the breach of being located at guiding valve and block jointing place.
Between described block and valve body for being welded and fixed.
beneficial effect
A kind of end face full-closed structure for inching valve of the present invention, compared with prior art its oil sealing effect is more reliable, has feature with low cost, simple in structure, efficiency of assembling is high.By end face is adopted to full-closed structure, not only saved these three component of plug, seal ring and jump ring, reduce cost of production, but also avoided the seepage of inching valve end face in long-term use, guaranteed reliability.
accompanying drawing explanation
Fig. 1 is cross-sectional view of the present invention
Fig. 2 is circle part enlarged view of the present invention
Wherein, circlip, 4-pad, 5-valve rod spring, 6-valve body, 7-slide valve spring, 8-guiding valve, 9-block, 10-filler opening, 11-oil outlet, 12-breach, 13-drain tap before 1-valve rod, 2-outside framework oil seal, 3-.
Embodiment
For making that structure characteristic of the present invention and the effect reached are had a better understanding and awareness, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As shown in Figure 1, a kind of end face full-closed structure for inching valve of the present invention, comprises guiding valve 8, valve body 6 and is sleeved on the valve rod 1 in valve body 6 by outside framework oil seal 2, outside framework oil seal 2 is arranged between valve rod 1 and valve body 6 front ends, rises with oil sealing object.On valve rod 1, be set with front circlip 3, pad 4 and valve rod spring 5, front circlip 3, pad 4 and valve rod spring 5 are respectively used to valve rod 1 interlock when inching valve is worked and use, guiding valve 8 front ends and valve rod 1 rear end are installed and are sleeved in valve body 6, and valve rod 1 can be with movable pulley 8 motions like this.Guiding valve 8 rear end suit slide valve springs 7, slide valve spring 7 is used for coordinating guiding valve 8 motions.As shown in Figure 2, also comprise block 9, block 9 is located at the rear end of guiding valve 8 and is fixedly mounted in valve body 6.Slide valve spring 7 is arranged in guiding valve 8 and contacts with block 9, the means of fixation that block 9 is fixedly mounted in valve body 6 can be used welding, completely seamless to guarantee, in the time of also can adopting making valve body 6, by the disposable making moulding of block 9, can better guarantee using effect and reliability.Block 9 is fixed in valve body 6, has played sealing effect, guiding valve 8 and slide valve spring 7 has been played to abutment action simultaneously.Adopted after all-sealed structure, due to reasons such as cutter restrictions, added the metal iron filings that are difficult to discharge processing man-hour, therefore can also be provided with breach 12 in guiding valve 8 and the jointing place of block 9.Breach 12 need not fit dimension, has so both avoided blocking because of the valve body 6 processing guiding valve that may cause 8 not in place the generation of the dumb situation of motion, does not also affect the totally-enclosed performance of inching valve completely.
When reality is used, when hydraulic fork lift works, do not need to use inching valve, now hydraulic oil is from filler opening 11 oil-feeds, in valve body 6, pass through, but not excessive, the slide valve spring 7 that is built in guiding valve 8 is also tightly depressed in valve body 6 bottoms and the formed hole of guiding valve 8 by hydraulic oil, simultaneously fuel-displaced from oil outlet 11.When needs are used inching valve, by the drag link mechanism band ovable valve stem 1 of hydraulic fork lift, pulled out, simultaneously by 5 compressions of valve rod spring.At valve rod 1, pull out in 2mm, drain tap 13 and fuel tank be access failure also, the pressure of oil outlet 11 is still constant, when valve rod 1 is pulled out 2-4mm, the interior hydraulic oil liquid of valve body 6 and fuel tank are connected, oil liquid pressure declines rapidly, and the slide valve spring 7 that is now built in guiding valve 8 moves guiding valve 8 because compressive force reduces to reply to drain tap 13.Under the acting in conjunction of drain tap 13 and guiding valve 8 and slide valve spring 7, form a pressure balance, the size of pressure slowly decays along with valve rod 1 is pulled out formed drain tap 13 sizes and slide valve spring 7, guiding valve 8 is servo-actuated forward, forms a fretting performance.Block 9 is arranged on the rear end of valve body 6 inside, and slide valve spring 7 is played a supporting role, and adopts totally enclosed type processing simultaneously, and while having guaranteed inching valve work, the sealing effect of end face, has promoted sealing reliability.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (3)
1. the end face full-closed structure for inching valve, comprise guiding valve (8), valve body (6) and be sleeved on the valve rod (1) in valve body (6) by outside framework oil seal (2), on described valve rod (1), be set with front circlip (3), pad (4) and valve rod spring (5), described guiding valve (8) front end and valve rod (1) rear end are installed and are sleeved in valve body (6), described guiding valve (8) rear end suit slide valve spring (7), it is characterized in that: also comprise block (9), described block (9) is located at the rear end of guiding valve (8) and is fixedly mounted in valve body (6).
2. a kind of end face full-closed structure for inching valve according to claim 1, is characterized in that: also comprise the breach (12) of being located at guiding valve (8) and block (9) jointing place.
3. a kind of end face full-closed structure for inching valve according to claim 1, is characterized in that: between described block (9) and valve body (6) for being welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519327.5A CN103527803A (en) | 2013-10-29 | 2013-10-29 | End face whole-sealing structure for inching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310519327.5A CN103527803A (en) | 2013-10-29 | 2013-10-29 | End face whole-sealing structure for inching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103527803A true CN103527803A (en) | 2014-01-22 |
Family
ID=49930039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310519327.5A Pending CN103527803A (en) | 2013-10-29 | 2013-10-29 | End face whole-sealing structure for inching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527803A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006805A (en) * | 1975-06-30 | 1977-02-08 | Clark Equipment Company | Clutches with bypass inching valve |
| JPS5541612U (en) * | 1978-09-12 | 1980-03-17 | ||
| CN201606522U (en) * | 2009-12-31 | 2010-10-13 | 安徽蓝博旺机械有限责任公司 | Micro-valve |
| CN201679997U (en) * | 2010-05-21 | 2010-12-22 | 大连兴龙液压有限公司 | Point acting valve |
| CN203548968U (en) * | 2013-10-29 | 2014-04-16 | 合肥今典机械科技有限公司 | End face totally-sealed structure for inching valve |
-
2013
- 2013-10-29 CN CN201310519327.5A patent/CN103527803A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006805A (en) * | 1975-06-30 | 1977-02-08 | Clark Equipment Company | Clutches with bypass inching valve |
| JPS5541612U (en) * | 1978-09-12 | 1980-03-17 | ||
| GB2032062B (en) * | 1978-09-12 | 1983-01-06 | Komatsu Mfg Co Ltd | Inching valves |
| CN201606522U (en) * | 2009-12-31 | 2010-10-13 | 安徽蓝博旺机械有限责任公司 | Micro-valve |
| CN201679997U (en) * | 2010-05-21 | 2010-12-22 | 大连兴龙液压有限公司 | Point acting valve |
| CN203548968U (en) * | 2013-10-29 | 2014-04-16 | 合肥今典机械科技有限公司 | End face totally-sealed structure for inching valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |