CN103629179A - Improved structure of lifting oil cylinder block one-way valve - Google Patents
Improved structure of lifting oil cylinder block one-way valve Download PDFInfo
- Publication number
- CN103629179A CN103629179A CN201310618280.8A CN201310618280A CN103629179A CN 103629179 A CN103629179 A CN 103629179A CN 201310618280 A CN201310618280 A CN 201310618280A CN 103629179 A CN103629179 A CN 103629179A
- Authority
- CN
- China
- Prior art keywords
- valve
- oil
- cylinder block
- cylinder seat
- 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
Links
Images
Abstract
The invention discloses an improved structure of a lifting oil cylinder block one-way valve. The improved structure comprises a cylinder block. An oil cavity is formed in the cylinder block, a cavity opening of the oil cavity is formed in one side of the cylinder block, a valve rod is installed in the oil cavity in a sliding mode, a valve bush is installed on the valve rod, an oil outlet is formed in the top of the cylinder block, a cylinder barrel is installed on the cylinder block, a piston is vertically installed in the cylinder barrel in a sliding mode, a piston rod is installed in the piston, a buffer valve bush is installed in the piston rod, a buffer plunger is arranged in the buffer valve bush, the bottom end of the buffer plunger stretches into the oil outlet of the cylinder block, a valve port communicated with the oil cavity is vertically formed in the top, on one side of the oil outlet, of the cylinder block, a plug is installed on the top of the valve port, a vertical through cavity is formed in the plug, a steel ball is movably arranged at the joint of the valve port and the oil cavity, and the steel ball can plug the joint of the valve port and the oil cavity and the through cavity of the plug due to fact that the diameter of the steel ball is large enough. The improved structure is simple in improvement and ingenious, the one-way valve, a spring and a spring seat are removed, the valve bush is shortened, the purpose is well achieved only through the steel ball and the plug, cost is lowered, and the good effect is achieved.
Description
Technical field
The present invention relates to oil cylinder field, is mainly a kind of improvement structure of lift oil tank cylinder seat one-way valve.
Background technique
The buffering class oil cylinder of prior art, when oil cylinder hoists, because intermediate buffering plunger position work area is little, lifting velocity is slow, thus on cylinder seat, arrange one with the oil circuit of one-way valve, to improve oil cylinder lifting velocity.During decline, one-way valve is in closed condition, and oil circuit can only, from buffer plunger, cushion collar oil return, play buffer function.Its oil cylinder seat of the oil cylinder of this structure, valve pocket structure are more complicated, and in actual processing, because endoporus relative position degree requires sternly, difficulty of processing is large.The inner check valve assembly being comprised of one-way valve, spring, spring seat, back-up ring various parts, because manufacture exists error, easily causes one-way valve oil leakage phenomenon simultaneously, affects cushioning effect.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of improvement structure of lift oil tank cylinder seat one-way valve, its architecture advances is simple, one-way valve, spring, spring seat are removed, shorten valve pocket, by a steel ball, a screw plug has just well reached object, and structure is ingenious, also reduced cost, obtained good effect simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of improvement structure of lift oil tank cylinder seat one-way valve, include cylinder seat, in cylinder seat, be horizontally arranged with oil pocket, and cylinder seat one side is provided with the accent of oil pocket, in described oil pocket, be slidably fitted with valve rod, valve pocket is installed on valve rod, described cylinder seat top vertically has the oil outlet being communicated with oil pocket, it is characterized in that: on described cylinder seat, cylinder barrel is installed, in cylinder barrel, be vertically slidably fitted with piston, piston rod is installed in piston, buffering valve pocket is installed in piston rod, in buffering valve pocket, be provided with buffer plunger, described buffer plunger bottom is stretched in cylinder seat oil outlet, the cylinder seat top of described oil outlet one side also vertically has the valve port being communicated with oil pocket, valve port top is provided with screw plug, and in screw plug, be provided with vertical cavity, valve port and oil pocket junction are movably set with steel ball, and steel ball size can stop up valve port and oil pocket junction, screw plug cavity.
Described piston outer wall is provided with the seal ring being sealed between piston outer wall and inner wall of cylinder.
Advantage of the present invention is:
Architecture advances of the present invention is simple, and one-way valve, spring, spring seat are removed, and shortens valve pocket, and by a steel ball, a screw plug has just well reached object, and structure is ingenious, has also reduced cost simultaneously, has obtained good effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of improvement structure of lift oil tank cylinder seat one-way valve, include cylinder seat 1, in cylinder seat 1, be horizontally arranged with oil pocket 2, and cylinder seat 1 one sides are provided with the accent of oil pocket, in oil pocket 2, be slidably fitted with valve rod 3, valve pocket 4 is installed on valve rod 3, cylinder seat 1 top vertically has the oil outlet being communicated with oil pocket 2, cylinder barrel 5 is installed on cylinder seat 1, in cylinder barrel 5, be vertically slidably fitted with piston 6, piston rod 7 is installed in piston 6, buffering valve pocket 8 is installed in piston rod 7, in buffering valve pocket 8, be provided with buffer plunger 9, buffer plunger 9 bottoms are stretched in cylinder seat 1 oil outlet, cylinder seat 1 top of oil outlet one side also vertically has the valve port 10 being communicated with oil pocket 2, valve port 10 tops are provided with screw plug 11, and in screw plug 11, be provided with vertical cavity, valve port 10 is movably set with steel ball 12 with oil pocket 2 junctions, and steel ball 12 diameters can stop up valve port 10 and oil pocket 2 junctions, screw plug 11 cavities.Piston 6 outer walls are provided with the seal ring 13 being sealed between piston 6 outer walls and cylinder barrel 5 inwalls.
Claims (2)
1. the improvement structure of a lift oil tank cylinder seat one-way valve, include cylinder seat, in cylinder seat, be horizontally arranged with oil pocket, and cylinder seat one side is provided with the accent of oil pocket, in described oil pocket, be slidably fitted with valve rod, valve pocket is installed on valve rod, described cylinder seat top vertically has the oil outlet being communicated with oil pocket, it is characterized in that: on described cylinder seat, cylinder barrel is installed, in cylinder barrel, be vertically slidably fitted with piston, piston rod is installed in piston, buffering valve pocket is installed in piston rod, in buffering valve pocket, be provided with buffer plunger, described buffer plunger bottom is stretched in cylinder seat oil outlet, the cylinder seat top of described oil outlet one side also vertically has the valve port being communicated with oil pocket, valve port top is provided with screw plug, and in screw plug, be provided with vertical cavity, valve port and oil pocket junction are movably set with steel ball, and steel ball size can stop up valve port and oil pocket junction, screw plug cavity.
2. the improvement structure of a kind of lift oil tank cylinder seat one-way valve according to claim 1, is characterized in that: described piston outer wall is provided with the seal ring being sealed between piston outer wall and inner wall of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618280.8A CN103629179A (en) | 2013-11-27 | 2013-11-27 | Improved structure of lifting oil cylinder block one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618280.8A CN103629179A (en) | 2013-11-27 | 2013-11-27 | Improved structure of lifting oil cylinder block one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103629179A true CN103629179A (en) | 2014-03-12 |
Family
ID=50210550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310618280.8A Pending CN103629179A (en) | 2013-11-27 | 2013-11-27 | Improved structure of lifting oil cylinder block one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103629179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946192A (en) * | 2017-05-10 | 2017-07-14 | 蚌埠液力机械有限公司 | Fork truck lifting oil cylinder with New Buffering structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020040637A1 (en) * | 2000-10-10 | 2002-04-11 | Susumu Niwa | Lift cylinder |
| CN2615406Y (en) * | 2003-04-29 | 2004-05-12 | 天津特精液压股份有限公司 | Piston type single-action damper hydraulic cylinder |
| CN101050782A (en) * | 2007-04-30 | 2007-10-10 | 安徽合力股份有限公司 | 1-3.5T gap buffer lift oil cylinder with one-way valve at cylinder bottom |
| CN203594641U (en) * | 2013-11-27 | 2014-05-14 | 合肥海源机械有限公司 | Improved structure of lifting cylinder base one-way valve |
-
2013
- 2013-11-27 CN CN201310618280.8A patent/CN103629179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020040637A1 (en) * | 2000-10-10 | 2002-04-11 | Susumu Niwa | Lift cylinder |
| CN2615406Y (en) * | 2003-04-29 | 2004-05-12 | 天津特精液压股份有限公司 | Piston type single-action damper hydraulic cylinder |
| CN101050782A (en) * | 2007-04-30 | 2007-10-10 | 安徽合力股份有限公司 | 1-3.5T gap buffer lift oil cylinder with one-way valve at cylinder bottom |
| CN203594641U (en) * | 2013-11-27 | 2014-05-14 | 合肥海源机械有限公司 | Improved structure of lifting cylinder base one-way valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946192A (en) * | 2017-05-10 | 2017-07-14 | 蚌埠液力机械有限公司 | Fork truck lifting oil cylinder with New Buffering structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204061414U (en) | Steady buffering type lift oil tank | |
| CN203594641U (en) | Improved structure of lifting cylinder base one-way valve | |
| CN203023169U (en) | Synchronous secondary telescopic cylinder | |
| CN103629179A (en) | Improved structure of lifting oil cylinder block one-way valve | |
| CN203685125U (en) | Reverse circulation valve for coiled tubing abrasive perforating | |
| CN104019274B (en) | A kind of auto-locking suspension liquid-operated flat valve | |
| CN203584962U (en) | Improved structure of buffer oil cylinder device | |
| CN105712237A (en) | Hydraulic jack | |
| CN203702724U (en) | Lifting hydraulic oil cylinder of mining dumper | |
| CN203718030U (en) | Block valve structure | |
| CN204300035U (en) | A kind of hydraulic jack of pooling feature | |
| CN203614499U (en) | Single-action plunger cylinder and forklift | |
| CN203321937U (en) | Buffer oil cylinder | |
| CN202612248U (en) | Combined-type hydraulic cylinder | |
| CN202579453U (en) | Buffer device for hydraulic oil cylinder | |
| CN205578404U (en) | Hydraulic cylinder with high shock -absorbing capacity | |
| CN205331435U (en) | Multifunctional valve | |
| CN103644168A (en) | Improved structure of buffering oil cylinder device | |
| CN202612252U (en) | Compact type cushion cylinder | |
| CN204041833U (en) | A kind of damping oil cylinder for medium-heavy automobile driver's cab turnover | |
| CN104564895A (en) | Single-acting plunger cylinder and forklift | |
| CN202193587U (en) | Double-acting self locking hydraulic lifting jack | |
| CN203441860U (en) | Dual-ejector-rod composite hydraulic cylinder capable of realizing sequential actions | |
| CN203453166U (en) | Two-stage piston check valve core | |
| CN203717942U (en) | Block valve with piston for sealing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140312 |