CN203796647U - Manual control distribution valve - Google Patents
Manual control distribution valve Download PDFInfo
- Publication number
- CN203796647U CN203796647U CN201420227246.8U CN201420227246U CN203796647U CN 203796647 U CN203796647 U CN 203796647U CN 201420227246 U CN201420227246 U CN 201420227246U CN 203796647 U CN203796647 U CN 203796647U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- overflow
- bearing
- 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
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a manual control distribution valve. The manual control distribution valve comprises an overflow valve, a valve body, a valve element and a control rod, wherein the overflow valve is arranged in a hollow part in the valve element and comprises an overflow element, a first spring and a first support. The overflow valve is further provided with a safety port communicated with an oil inlet, and an overflow port communicated with an oil tank port. The first support is connected with the valve element through threads, and the overflow element is pressed by the first spring under the pressing of the first support. The valve body and the valve element are respectively of a three-position three-way valve structure. The valve element and the valve body are sealed through sliding, the manual control rod is hinged to one end, outside the valve body, of the valve element, a connecting piece is further arranged at one end, close to the hinged portion of the valve element, of the manual control rod, the manual control rod is hinged to one end of the connecting piece, and the other end of the connecting piece is hinged to a valve body connecting part. When hydraulic pressure is larger than a set value, hydraulic force pushes the overflow element so that high pressure oil can flow in through the safety port, flow out through the overflow port and return to an oil tank through the oil tank port, and thus the whole manual control distribution valve is safer and more reliable in running.
Description
Technical field
The utility model relates to a kind of manual distributing valve, is specifically related to a kind of for the matching used manual distributing valve of the lift device with HYDRAULIC CONTROL SYSTEM.
Background technique
For the structure of the matching used manual distributing valve of lift device with HYDRAULIC CONTROL SYSTEM, mostly comprise valve body, spool and hand lever at present, spool seals with valve body by sliding, and hand lever is controlled spool and slided, and it generally adopts 3-position-3-way valve arrangement.Its working principle is to apply power by one of both direction on hand lever, promote hand lever and produce displacement, drive the spool being connected as a single entity with hand lever to slide simultaneously, the slip of spool can be controlled opening of manual distributing valve oil transportation path or airtight, realizes the liter of controlled device, the control function of stopping, falling.But between the spool of the manual distributing valve of this structure and hand lever, adopt planar slide structure, the phenomenon of hand lever and the inordinate wear of spool connecting pin very easily occurs during use, cause the generation of manual distributing valve fault.The manual distributing valve of this structure very easily breaks down on valve body owing to controlling the safety valve passage of hydrovalve simultaneously, particularly in lifting process, controlled device is crossed slow or lifting because of safety valve fault lifting speed and was lost efficacy, very easily there is controlled device and lost efficacy, cause production normally to carry out.
Model utility content
The purpose of this utility model is: the manual distributing valve that a kind of safe and reliable, failure rate is low is provided.
For realizing above-mentioned technical purpose, by the following technical solutions:
A manual distributing valve, comprises relief valve, valve body, spool and controlling rod;
Wherein relief valve is arranged at the hollow space in spool, comprise overflow core, spring one and bearing one, on described relief valve, be also provided with the safety mouth being communicated with filler opening and the flow-off being communicated with reservoir port, in setting hydraulic pressure, overflow core closes safe mouthful under the active force of spring one, when hydraulic pressure surpasses setting value, hydraulic coupling promotes overflow core high pressure oil is flowed into, from flow-off, flows out and get back to fuel tank by reservoir port from safety mouth; Bearing one is threaded with spool, and spring one compresses overflow core under the compressing of bearing one, and spring one regulates the active force to overflow core by the degree of tightness of bearing one, thereby sets hydraulic pressure value;
Valve body and spool are 3-position-3-way valve arrangement, spool seals with valve body by sliding, hand lever and spool one end outside valve body is hinged, and hand lever is also provided with link close with one end of spool hinged place, hand lever and link one end are carried out hinged, and the link the other end and valve body joint carry out hinged.
For making the utility model more be suitable for practicality, make further improvements below:
At valve body, near relief valve one end, be provided with shell, for the protection of spool and relief valve.
In described shell, be provided with bearing two and spring two, bearing two hangs on bearing one, and bearing two holddown springs two give spool active force, makes spool pressuring spring when occurring to left dislocation, after giving spool and cancelling to the active force of left dislocation, spool restores to the original state under the effect of spring.
The beneficial effects of the utility model are: link carries out circular movement, and spool carries out level and is moved to the left, and the wearing and tearing between each parts of this process are reduced as much as possible.Because be provided with relief valve, when hydraulic pressure surpasses setting value, hydraulic coupling promotes overflow core high pressure oil is flowed into, from flow-off, flows out and get back to fuel tank by reservoir port from safety mouth, makes whole manual distributing valve more safe and reliable when operation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model Fig. 1 90-degree rotation structural representation.
Reference character: 1-valve body, 2-hatchway, 3-safety mouthful, 4-hand lever, 5-link, 6-reservoir port, 7-filler opening, 8-valve body joint, 9-spool, 10-overflow core, 11-flow-off, 12-spring one, 13-bearing two, 14-shell, 15-spring two, 16-bearing one.
Embodiment
As depicted in figs. 1 and 2, a kind of manual distributing valve, comprise relief valve, valve body 1, spool 9 and controlling rod 4, wherein relief valve is arranged at the hollow space in spool 9, comprise overflow core 10, spring 1 and bearing 1, on described relief valve, be also provided with the safety mouth 3 and the flow-off 11 that are communicated with filler opening 7, hydraulic pressure value in setting value time overflow core 10 under the active force of spring 1, close safety mouthfuls 3, spring 1 regulates the active force to overflow core 10 by the degree of tightness of bearing 1, thereby set hydraulic pressure value, when hydraulic pressure surpasses setting value, hydraulic coupling promotes overflow core 10 high pressure oil is flowed into from safety mouth 3, from flow-off 11, flow out and get back to fuel tank by reservoir port 6, wherein valve body 1 and spool 9 are 3-position-3-way valve arrangement, and spool 9 seals with valve body by sliding, and further seals by seal ring 3 at control end, hand lever 4 is hinged with spool 9 one end outside valve body, and hand lever 4 is near being also provided with link 5 with one end of spool 9 hinged places, and it is hinged that carry out hand lever 4 and link 5 one end, and link 5 the other ends and valve body joint 8 carry out hinged.
At valve body, near relief valve one end, be provided with shell 14, for the protection of spool 9 and relief valve, shell is also provided with bearing 2 13 on 14 bases, for limiting the sliding position of bearing 1, spool 9 is slided the frictional force of valve body 1 is reduced.In described shell 14, be provided with spring 2 15, this spring 2 15 is for giving spool 9 active forces, make spool 9 pressuring spring 2 15 when occurring to left dislocation, after giving spool 9 and cancelling to the active force of left dislocation, spool 9 restores to the original state under the effect of spring 2 15.
During use, when manual distributing valve keeps closed condition, filler opening 7 and reservoir port 6 connections, filler opening 7 and hatchway 2 sealings, high pressure oil flows into from filler opening 7, by reservoir port 6, flows back to fuel tank.When needs rise, by hand lever 4 to left translation, link carries out circular movement, spool carries out level and is moved to the left, wearing and tearing between each parts of this process are reduced as much as possible, and spool slides left filler opening 7 and reservoir port 6 sealings, filler opening 7 and hatchway 2 is communicated with, and high pressure oil flows into from filler opening 7, enter hatchway 2, reach the object of rising.Arrive after specified altitude assignment, hand lever is controlled spool and is got back to initial position, i.e. filler opening 7 and reservoir port 6 connections, filler opening 7 and hatchway 2 sealings.In the time of need to declining, hand lever 4 is controlled spool and is slided to the right, and reservoir port 6, filler opening 7 and hatchway 2 are communicated with, and high pressure oil flows out, by reservoir port, flows back to fuel tank from hatchway 2, completes decline work.
Claims (3)
1. a manual distributing valve, comprises relief valve, valve body (1), spool (9) and controlling rod (4);
Wherein relief valve is arranged at the hollow space in spool (9), comprise overflow core (10), spring one (12) and bearing one (16), on described relief valve, be also provided with the safety mouthful (3) being communicated with filler opening (7) and the flow-off (11) being communicated with reservoir port (6), bearing one (16) is threaded with spool (9), and spring one (12) compresses overflow core (10) under the compressing of bearing one (16);
Valve body (1) and spool (9) are 3-position-3-way valve arrangement, spool (9) seals with valve body by sliding, hand lever (4) is hinged with spool (9) one end outside valve body, and hand lever (4) is also provided with link (5) close with one end of spool (9) hinged place, hand lever (4) and link (5) one end are carried out hinged, and link (5) the other end and valve body joint (8) carry out hinged.
2. a kind of manual distributing valve as claimed in claim 1, is characterized in that: valve body is provided with shell (14) near relief valve one end.
3. a kind of manual distributing valve as claimed in claim 2, it is characterized in that: in described shell (14), be provided with bearing two (13) and spring two (15), bearing two (13) hangs on bearing one (16), and bearing two (13) holddown springs two (15) give spool (9) active force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227246.8U CN203796647U (en) | 2014-05-05 | 2014-05-05 | Manual control distribution valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227246.8U CN203796647U (en) | 2014-05-05 | 2014-05-05 | Manual control distribution valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796647U true CN203796647U (en) | 2014-08-27 |
Family
ID=51378861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227246.8U Expired - Fee Related CN203796647U (en) | 2014-05-05 | 2014-05-05 | Manual control distribution valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869430A (en) * | 2018-09-18 | 2018-11-23 | 唐万刚 | A kind of small-sized distributing valve |
-
2014
- 2014-05-05 CN CN201420227246.8U patent/CN203796647U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869430A (en) * | 2018-09-18 | 2018-11-23 | 唐万刚 | A kind of small-sized distributing valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203115194U (en) | Hydraulic control slow-closure butterfly check valve | |
| CN204692595U (en) | Industrial refrigeration right-angle type screw down nonreturn valve | |
| CN203796647U (en) | Manual control distribution valve | |
| CN103925382B (en) | A kind of pilot-operated type power station sluice valve | |
| CN203264104U (en) | Valve core bottle valve of air fire extinguisher | |
| CN204610393U (en) | A kind of hydraulic emergency feed circuit | |
| CN202992283U (en) | Tandem double-valve-plug one-way valve for high pressure and redundancy sealing | |
| CN205078532U (en) | Two accuse hydraulic system of single oil circuit | |
| CN205503592U (en) | Gas accuse distribution valve | |
| CN204300002U (en) | Cutting machine overburdening protective system | |
| CN204610984U (en) | A kind of safety check | |
| CN204387381U (en) | There is the elastic valve seat ball valve of compensate function | |
| CN206555556U (en) | One kind surges to lift closes screw down nonreturn valve soon | |
| CN102167276A (en) | Small-sized vacuum filling device with controllable filling speed | |
| CN106005084B (en) | Hydraulic climbing level robot and its working method | |
| CN205689841U (en) | A kind of hydraulic pressure autocontrol valve | |
| CN205654852U (en) | Take balanced type piston hydraulic hand pump of manual switching -over and automatic re -setting function | |
| CN205078522U (en) | Two powered hydraulic pressure systems | |
| CN204004603U (en) | Multi-functional to folder Swing check valve | |
| CN204127418U (en) | Oil field water injection pump safety valve | |
| CN204664604U (en) | The linkage structure of stop valve inside | |
| CN205357630U (en) | Low pressure piston formula livestock drinking bowl | |
| CN204459310U (en) | Novel noise eliminating check valve | |
| CN202971155U (en) | One-way valve for metering pump | |
| CN204127392U (en) | A kind ofly open and close flexible, safe and reliable single-lobe three-way valve |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20190505 |