CN203868016U - Non-internal relief lifting lever valve structure - Google Patents
Non-internal relief lifting lever valve structure Download PDFInfo
- Publication number
- CN203868016U CN203868016U CN201420261412.6U CN201420261412U CN203868016U CN 203868016 U CN203868016 U CN 203868016U CN 201420261412 U CN201420261412 U CN 201420261412U CN 203868016 U CN203868016 U CN 203868016U
- Authority
- CN
- China
- Prior art keywords
- chamber
- driving lever
- valve
- spool
- lifting lever
- 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
Links
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model discloses a non-internal relief lifting lever valve structure. Auxiliary valve chambers are disposed in a valve body; an auxiliary valve rod is movably connected in each auxiliary valve chamber; the top parts of the auxiliary valve chambers are provided with a lifting lever chamber; a lifting lever is movably connected with the lifting lever chamber; the bottom end of the lifting lever is vertically fastened on the middle part of the auxiliary valve rod; two ends of the valve body over the auxiliary valve chambers are respectively provided with a valve core chamber; a valve core is movably connected in each valve core chamber; the top end of each valve core extends out of the corresponding valve core chamber and is abutted against a relative side of the side wall of the lifting lever; one end of each valve core chamber far away from the lifting lever chamber is provided with an oil inlet joint; and the side wall of one end of each valve core chamber close to the lifting lever chamber is communicated with the other side of one end of each valve core chamber far away from the lifting lever chamber. With the above structure, an imbalance state during machinery operation can be reduced, so stability of the valve core chambers can be guaranteed, wear can be reduced and service life of the lifting lever rod structure can be prolonged.
Description
Technical field
The utility model relates to hydraulic element field, is specifically related to a kind of without internal drainage type driving lever valve arrangement.
Background technique
At machinery, need to commutate while coming and going action, just need to have a kind ofly can make the automatic round separate piece of selector valve.As shown in Figure 3, what this class valve on market adopted is all that spool and driving lever are fixed as an integral body, when running, the External Force Acting that spool is received driving lever in valve body is large, and spool there will be inclination in valve body, and causes spool and valve body to produce heavy wear, not only reduced the efficiency of valve body, and there will be not maintainable damage, in the working life of having reduced valve body, finally cause valve body leakage of oil and scrap.
Summary of the invention
The purpose of this utility model is: overcome the deficiencies in the prior art, provide a kind of without internal drainage type driving lever valve arrangement, by independently spool chamber and spool are controlled mechanical back and forth movement with auxiliary valve rod, secondary valve pocket, can make machinery when running, reduce non-equilibrium state, reduce wear, increase the service life; Because driving lever is fixedly connected with auxiliary valve rod, and auxiliary valve rod is located at independently in secondary valve pocket, guaranteed the stability of spool chamber.
Technical solution adopted in the utility model is:
Without internal drainage type driving lever valve arrangement, comprise valve body, in described valve body, be provided with secondary valve pocket, in described secondary valve pocket, be connected with auxiliary valve rod, the medium position at described secondary valve pocket top is provided with driving lever chamber, described driving lever is connected with driving lever in chamber, the middle part with auxiliary valve rod is vertically fixed in described driving lever bottom, the place, two ends that described valve body is positioned at secondary valve pocket top is respectively equipped with spool chamber, in spool chamber, be connected with respectively spool, spool chamber is stretched out on the top of described spool, prop up respectively in the two opposite sides of driving lever sidewall, described spool chamber is respectively equipped with fuel inlet fitting away from the one end in driving lever chamber, described spool chamber is communicated with opposite side spool chamber one end away from driving lever chamber by oil extraction through hole near the sidewall of one end, driving lever chamber.
The further improvement project of the utility model is, in described oil extraction through hole, is provided with one-way valve, makes fluid in oil extraction through hole near the one end in driving lever chamber, flow to opposite side spool chamber away from the one end in driving lever chamber from spool chamber.
The utility model further improvement project is that the fluting end of described secondary valve pocket and oil extraction through hole seals by plug respectively.
The utility model further improvement project is, from spool chamber end, set through hole A stretches out on the top of described spool, is provided with the seal ring A matching with spool in through hole A, and described seal ring A prevents that fluid from entering driving lever chamber.
The utility model further improvement project is that described spool is that publication number CN202811583U, name are called the structure of letting out bidirectional hydraulic lock in nothing, improves its usability.
The beneficial effects of the utility model are:
The first, of the present utility model without internal drainage type driving lever valve arrangement, by with auxiliary valve rod, secondary valve pocket independently spool chamber and spool control mechanical back and forth movement, can make machinery reduce non-equilibrium state when running, reduce wear, increase the service life.
The second, of the present utility model without internal drainage type driving lever valve arrangement, because driving lever is fixedly connected with auxiliary valve rod, and auxiliary valve rod is located at independently in secondary valve pocket, guaranteed the stability of spool chamber.
accompanying drawing explanation:
Fig. 1 is that the master of the utility model structure looks cross-sectional schematic.
Fig. 2 is the cross-sectional schematic of overlooking of the utility model structure.
Fig. 3 is that the master of prior art structure looks cross-sectional schematic.
embodiment:
Shown in Fig. 1 and Fig. 2, the utility model comprises valve body 1, in described valve body 1, be provided with secondary valve pocket, in described secondary valve pocket, be connected with auxiliary valve rod 5, the medium position at described secondary valve pocket top is provided with driving lever chamber, described driving lever is connected with driving lever 2 in chamber, the middle part with auxiliary valve rod 5 is vertically fixed in described driving lever 2 bottoms, the place, two ends that described valve body 1 is positioned at secondary valve pocket top is respectively equipped with spool chamber, in spool chamber, be connected with respectively spool 3, spool chamber is stretched out on the top of described spool 3, prop up respectively in the two opposite sides of driving lever 2 sidewalls, described spool chamber is respectively equipped with fuel inlet fitting 4 away from the one end in driving lever chamber, described spool chamber is communicated with opposite side spool chamber one end away from driving lever chamber by oil extraction through hole 8 near the sidewall of one end, driving lever chamber, in described oil extraction through hole 8, be provided with one-way valve 7, make fluid in oil extraction through hole 8 near the one end in driving lever chamber, flow to opposite side spool chamber away from the one end in driving lever chamber from spool chamber, the fluting end of described secondary valve pocket and oil extraction through hole 8 seals by plug 6 respectively, from spool chamber end, set through hole A stretches out on the top of described spool 3, is provided with the seal ring A matching with spool 3 in through hole A, and described seal ring A prevents that fluid from entering driving lever chamber, described spool is that publication number CN202811583U, name are called the structure of letting out bidirectional hydraulic lock in nothing, improves its usability.
When the utility model is used, when hydraulic oil is during from a side oil supply of valve body 1, this side valve core 3 promotes driving levers 2 to opposite side motion, thereby drives auxiliary valve rod 5 also to opposite side, to move, while opposite side spool 3 is under the effect of driving lever 2, and this side valve core 3 is done motion in the same way; The excess oil of this side spool chamber low voltage terminal enters the low voltage terminal of opposite side spool chamber under the extruding of this side valve core 3 by oil extraction through hole 8 and one-way valve 7.
Claims (4)
1. without internal drainage type driving lever valve arrangement, comprise valve body (1), described valve body is provided with secondary valve pocket in (1), in described secondary valve pocket, be connected with auxiliary valve rod (5), the medium position at described secondary valve pocket top is provided with driving lever chamber, in described driving lever chamber, be connected with driving lever (2), the middle part with auxiliary valve rod (5) is vertically fixed in described driving lever (2) bottom, it is characterized in that: the place, two ends that described valve body (1) is positioned at secondary valve pocket top is respectively equipped with spool chamber, in spool chamber, be connected with respectively spool (3), spool chamber is stretched out on the top of described spool (3), prop up respectively in the two opposite sides of driving lever (2) sidewall, described spool chamber is respectively equipped with fuel inlet fitting (4) away from the one end in driving lever chamber, described spool chamber is communicated with opposite side spool chamber one end away from driving lever chamber by oil extraction through hole (8) near the sidewall of one end, driving lever chamber.
2. as claimed in claim 1 without internal drainage type driving lever valve arrangement, it is characterized in that: in described oil extraction through hole (8), be provided with one-way valve (7), make fluid in oil extraction through hole (8) near the one end in driving lever chamber, flow to opposite side spool chamber away from the one end in driving lever chamber from spool chamber.
3. as claimed in claim 2 without internal drainage type driving lever valve arrangement, it is characterized in that: the fluting end of described secondary valve pocket and oil extraction through hole (8) is respectively by plug (6) sealing.
4. as claimed in claim 2 without internal drainage type driving lever valve arrangement, it is characterized in that: from spool chamber end, set through hole A stretches out on the top of described spool (3), in through hole A, be provided with the seal ring A matching with spool (3), described seal ring A prevents that fluid from entering driving lever chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261412.6U CN203868016U (en) | 2014-05-22 | 2014-05-22 | Non-internal relief lifting lever valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261412.6U CN203868016U (en) | 2014-05-22 | 2014-05-22 | Non-internal relief lifting lever valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868016U true CN203868016U (en) | 2014-10-08 |
Family
ID=51648975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261412.6U Expired - Fee Related CN203868016U (en) | 2014-05-22 | 2014-05-22 | Non-internal relief lifting lever valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868016U (en) |
-
2014
- 2014-05-22 CN CN201420261412.6U patent/CN203868016U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062148B (en) | A kind of energy-saving priority unloading valve | |
| CN103899596B (en) | A kind of hydraulic lock of band guide's check valve | |
| CN203248431U (en) | Unloading valve, hydraulic oil cylinder oil return backpressure unloading device and engineering machine | |
| CN104455548B (en) | A kind of fluid regeneration valve and method of work thereof | |
| CN104165166B (en) | A kind of compact telescopic oil cylinder switching valve group | |
| CN202402514U (en) | Master cylinder of clutch | |
| CN203718031U (en) | Button valve | |
| CN203868016U (en) | Non-internal relief lifting lever valve structure | |
| CN203926236U (en) | Single pump dual-speed hydraulic system | |
| CN203822757U (en) | Hydraulic lock provided with pilot one-way valve | |
| CN204082762U (en) | The automatic reciprocating oil hydraulic cylinder of a kind of integrated form | |
| CN202031908U (en) | Fast forward cylinder | |
| CN202492880U (en) | Hydraulically-controlled energy-saving device for crawler-type hydraulic excavator | |
| CN204003721U (en) | A kind of compact type telescopic oil cylinder switching valve group | |
| CN204003676U (en) | Pressurized machine surges | |
| CN202038835U (en) | Electro-hydraulic jack device | |
| CN201827434U (en) | Inclined reversing valve of forklift | |
| CN102530767A (en) | Valve integrated oil pump device of electric hydraulic jack | |
| CN102092654B (en) | Electric hydraulic jack device | |
| CN204372229U (en) | A kind of fluid regeneration valve | |
| CN205689505U (en) | A kind of force control hydraulic pressure energy saving of system device | |
| CN104912869A (en) | Fast extending and contracting control loop of hydraulic cylinder | |
| CN203783893U (en) | Gear pump internally provided with unloading device | |
| CN203822737U (en) | Low-pass prismatic valve | |
| CN202465176U (en) | Oil pump device integrated with valve body for electric hydraulic jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |