CN206346979U - A kind of modified logical valve - Google Patents
A kind of modified logical valve Download PDFInfo
- Publication number
- CN206346979U CN206346979U CN201621473669.3U CN201621473669U CN206346979U CN 206346979 U CN206346979 U CN 206346979U CN 201621473669 U CN201621473669 U CN 201621473669U CN 206346979 U CN206346979 U CN 206346979U
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- valve
- accommodating chamber
- cover plate
- valve element
- oil
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Abstract
The utility model provides a kind of modified logical valve, belongs to control valve technical field.It solves the problem of existing logical valve response speed is slow.This modified logical valve includes：Valve body；Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, and the control oil circuit for being connected and being used for hydraulic oil circulation with pilot valve is provided with the cover board；Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out communicated is offered on valve pocket；Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；Hydraulic oil can be directed into accommodating chamber and promote valve element to be moved axially on valve pocket by the control oil circuit by pilot valve so that valve element can make main oil inlet and main oil-out turn on or block.This modified logical valve has the advantages that fast response time, good airproof performance.
Description
Technical field
The utility model belongs to control valve technical field, is related to a kind of modified logical valve.
Background technology
Logical valve is inserted into inserting valve body, is controlled by the size of the unlatching of logical valve, closing action and open amount
Liquid flow path direction, pressure and the flow of working connection.Logical valve is used in the hydraulic system of high pressure, big flow or especially big flow,
Actual applicable mechanical range：Heavy duty machine tools, bending machine, die casting machine, plastic injection molding machine, brass mill machine and various heavy industrial machines
And vehicle and ship etc..
Existing logical valve includes being made up of cover plate, valve element, valve pocket and spring etc., and cover plate and valve pocket are inserted on valve body,
Valve element and spring be may be contained within valve pocket, and two main hydraulic fluid ports and a control port are offered on valve pocket, and control port can be controlled
Valve element processed moves axially in valve pocket and two main oil inlets is communicated or is closed, but the logical valve has following technology and asked
Topic：1st, valve pocket is arranged on cover plate outer surface in the technical scheme and both valve pocket and cover plate are connected by screw so that
There is gap between valve pocket and cover plate so that the sealing of both valve pocket and cover plate is poor；2nd, in the technical scheme, control port is worked as
Communicated with fuel tank, the pressure that valve element is only produced by hydraulic oil in main hydraulic fluid port promotes valve element to move axially, and causes the response of valve element
Speed is slow.
In summary, it is not enough, it is necessary to design a kind of fast response time, good airproof performance on existing logic valve arrangement to solve
Modified logical valve.
Utility model content
The purpose of this utility model is there is above mentioned problem for existing technology, it is proposed that a kind of fast response time, close
The good modified logical valve of envelope property.
The purpose of this utility model can be realized by following technical proposal：A kind of modified logical valve, including：
Valve body；
Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, is provided with the cover board and guide
Valve be connected and be used for hydraulic oil circulation control oil circuit；
Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out communicated is offered on valve pocket；
Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；
Hydraulic oil can be directed into accommodating chamber and promote valve element axial direction on valve pocket by the control oil circuit by pilot valve
It is mobile so that valve element can make main oil inlet and main oil-out turn on or block.
In a kind of above-mentioned modified logical valve, the control oil circuit includes being arranged on cover plate and communicating with pilot valve
Control oil inlet pipe, control flowline and control oil pipe, the oil inlet of control oil inlet pipe, control flowline and control oil pipe
It is respectively positioned on the same end face of cover plate, the oil guide pipe that two ends are communicated with pilot valve and accommodating chamber respectively is additionally provided with the cover board.
In a kind of above-mentioned modified logical valve, the accommodating chamber includes the first accommodating chamber and the second accommodating chamber, described
The rear end face and valve pocket of valve element form first accommodating chamber, and first accommodating chamber is communicated by oil guide pipe with pilot valve,
The middle part of valve element and valve pocket are surrounded into second accommodating chamber, and second accommodating chamber is communicated with control oil inlet pipe.
In a kind of above-mentioned modified logical valve, annular step surface is offered on valve element, offered on valve pocket with
The corresponding ring-shaped step groove of annular step surface, the annular step surface and ring-shaped step groove form second accommodating chamber.
In a kind of above-mentioned modified logical valve, the two ends point of multiple oil guiding holes and each oil guiding hole are offered on valve element
Do not communicated with the second accommodating chamber and control oil inlet pipe.
In a kind of above-mentioned modified logical valve, annular accommodating chamber is formed between valve pocket and cover plate, on the cover board
It is provided with the connecting tube that two ends are communicated with control oil inlet pipe and annular accommodating chamber respectively.
In a kind of above-mentioned modified logical valve, multiple connecting holes through cover plate are offered on the cover board, each connection
One end of screw and screw is provided with hole through connecting hole and is threadedly connected on valve body.
In a kind of above-mentioned modified logical valve, the upper surface of valve element offers mounting groove, is provided with mounting groove
The upper end of elastic component and the elastic component is resisted against on cover plate.
In a kind of above-mentioned modified logical valve, multiple first sealing rings, described are provided with the outer surface of valve pocket
The both sides of one sealing ring are contacted with valve pocket and cover plate respectively.
In a kind of above-mentioned modified logical valve, multiple second sealing rings, described are provided with the outer surface of valve element
The both sides of two sealing rings are contacted with valve element and valve pocket respectively.
Compared with prior art, the utility model at least has the advantages that：
1st, the utility model includes cover plate, valve pocket and valve element, and the upper end of wherein valve pocket is inserted on cover plate, it is ensured that lid
The steadiness of both plate and valve pocket connection, and ensure that the sealing of both cover plate and valve pocket；
2nd, the control oil circuit circulated for hydraulic oil is offered on the cover board, and appearance is formed between the two in valve element and valve pocket
Receive chamber, the hydraulic oil in control oil circuit can be directed into accommodating chamber and can produce control pressure of the promotion valve element along valve pocket axially upwards
Power, meanwhile, hydraulic oil can also produce main input pressure axially upwards, both control pressure and main input pressure in main oil inlet
It is common to promote valve element movement, improve the response speed of valve element.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the sectional view at another visual angle of the utility model.
Fig. 4 is the sectional view at another visual angle of the utility model.
In figure, 100, cover plate；110th, pilot valve；120th, connecting hole；200th, valve pocket；210th, main oil inlet；220th, master is fuel-displaced
Mouthful；240th, annular accommodating chamber；250th, connecting tube；300th, valve element；320th, oil guiding hole；400th, oil inlet pipe is controlled；410th, control fuel-displaced
Pipe；420th, control oil pipe；430th, oil guide pipe；600th, spring；700th, the first sealing ring；710th, the second sealing ring.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in Figures 1 to 4, this modified logical valve includes cover plate 100, valve pocket and valve element 300, wherein, cover plate 100
It is installed on valve body (not marked in figure) and is fixed with pilot valve 110 in the outer surface of cover plate 100, use is also equipped with cover plate 100
The control oil circuit circulated in hydraulic oil, valve pocket is inserted on cover plate 100, and main oil inlet 210 is offered on bonnet and master is fuel-displaced
Mouth 220, valve element 300 is arranged on valve pocket, and accommodating chamber is formed between valve element 300 and valve pocket, in the course of the work, control oil
Hydraulic oil can be directed into accommodating chamber by road by pilot valve 110, and hydraulic oil can promote valve element 300 to be moved axially along valve pocket,
Make winner's oil inlet 210 and both conductings of main oil-out 220 or block.
The connecting hole 120 through cover plate 100 is offered in the upper surface of cover plate 100, and connecting hole 120 includes being in ladder
The first connecting hole and the second connecting hole that type is set, the first connecting hole and the second connecting hole be coaxially disposed and the first connecting hole it is straight
Footpath is more than the diameter of the second connecting hole, during installation, screw is provided with the first connecting hole, one end of screw is passed through
Second connecting hole is simultaneously threadedly connected on valve body so that steadiness that both cover plate 100 and valve body are connected simultaneously ensure that cover plate 100
With the sealing of valve body.
Above-mentioned control oil circuit includes control oil inlet pipe 400, the control for being arranged on cover plate 100 and being communicated with pilot valve 110
Flowline 410 and control oil pipe 420, wherein, control entering for oil inlet pipe 400, control flowline 410 and control oil pipe 420
Hydraulic fluid port is opened on the same end face of cover plate 100, convenient control oil inlet pipe 400, control flowline 410 and control oil pipe
The installation of 420 three's oil circuits, and control oil inlet pipe 400, control flowline 410 and the three of control oil pipe 420 to surround respectively
Valve pocket is set, specifically, and control oil inlet pipe 400 is arranged at the left side of valve pocket, and control flowline 410 is arranged at the top of valve pocket,
Control oil pipe 420 is arranged at the right side of valve pocket.
Preferably, the oil guide pipe 430 that two ends are communicated with pilot valve 110 and accommodating chamber respectively is additionally provided with cover plate 100,
Control valve can control oil guide pipe 430 to be turned on or off by pilot valve 110.
Fixing groove is offered at the middle part of cover plate 100, above-mentioned valve pocket, which is withheld, to be arranged in fixing groove, above-mentioned valve element 300 is worn
On valve pocket, wherein, both are connected and remains stationary state for valve pocket and cover plate 100, and valve element 300 can axially be moved along valve pocket
It is dynamic.
The through hole through valve pocket is offered in the middle part of valve pocket, when valve pocket is threadedly connected on valve body, through hole and main oil
Road communicates and valve element 300 is equipped with through hole, so that the lower end of through hole is main oil inlet 210, is opened on the side wall of valve pocket
Provided with multiple main oil-outs 220 through sleeve side wall, multiple main oil-outs 220 and the outside annular in shape for being uniformly distributed in valve pocket
On wall, and main oil-out 220 is communicated with main oil inlet 210, and annular abutment portion is provided with the inwall of valve pocket and annular is supported
Relying part is located between main oil inlet 210 and main oil-out 220.
When the lower end of valve element 300 is resisted against in annular abutment portion, valve element 300 can block main oil inlet 210 and block master
Oil inlet 210 and main oil-out 220 are turned on；When valve element 300 is along through hole axial slip and remote annular abutment portion, and work as
When the lower surface of valve element 300 and tangent main oil-out 220, the hydraulic oil in main oil inlet 210 can be outside by main oil-out 220
Export, the spacing that valve element 300 is moved in the axial direction can control the open amount of main oil-out 220 and realize the water conservancy diversion of hydraulic oil
Speed.
Above-mentioned accommodating chamber can be divided into the first accommodating chamber 310 and the second accommodating chamber, wherein, in the end face of valve element 300 and valve pocket two
The first accommodating chamber 310 is formed between person, one end of above-mentioned oil guide pipe 430 is communicated with the first accommodating chamber 310, oil guide pipe 430
The other end is communicated with pilot valve 110；Second accommodating chamber be arranged at the middle part of valve element 300 and valve pocket and the second accommodating chamber with control into
Oil pipe 400 is communicated.
Annular step surface is offered on valve element 300, ring-shaped step corresponding with annular step surface is offered on valve pocket
Groove, second accommodating chamber is formed in annular step surface and ring-shaped step groove between the two, and the second accommodating chamber with control into
Oil pipe 400 is communicated.
Preferably, offer multiple oil guiding holes 320 on valve element 300, the two ends of oil guiding hole 320 respectively with the second accommodating chamber
Communicated with control oil inlet pipe 400 so that the hydraulic oil in control oil inlet pipe 400 can be directed into the second receiving by oil guiding hole 320
Intracavitary, while improving the speed that hydraulic oil is directed into the second accommodating chamber, improves response speed of the present utility model.
Further, annular accommodating chamber 240 is formed between valve pocket and cover plate 100, each oil guiding hole 320 holds with annular
Chamber 240 of receiving is communicated, and the connection that two ends are communicated with control oil inlet pipe 400 and annular accommodating chamber 240 respectively is offered on cover plate 100
Hydraulic pressure in pipe 250, control oil inlet pipe 400 has and can be directed into by connecting tube 250 in annular accommodating chamber 240, and annular is held
The hydraulic oil in chamber 240 of receiving can be directed into the second accommodating chamber by oil guiding hole 320.
Further, the axial line of above-mentioned oil guiding hole 320 and the axis parallel of connecting tube 250 and difference of height is formed with,
The axial line of connecting tube 250 is located at the straight of the top of axial line of oil guiding hole 320 and the diameter of connecting tube 250 and oil guiding hole 320
Footpath is equal, it is to avoid the hydraulic oil in annular accommodating chamber 240 is back to the production of phenomenon in control oil inlet pipe 400 by connecting tube 250
It is raw.
Mounting groove is offered in the upper surface of valve element 300, the two ends point of elastic component and elastic component are provided with mounting groove
It is not resisted against between valve element 300 and cover plate 100, elastic component deformation energy produces elastic force to valve element 300, elastic force can improve valve
The reset efficiency of core 300.
Preferably, above-mentioned elastic component is spring 600.
Operation principle of the present utility model is as follows：
In an initial condition, control oil pipe 420 is opened with pilot valve 110, and the hydraulic oil in control oil pipe 420 is directed into
Produce in one accommodating chamber 310 and to valve element 300 control pressure straight down；Hydraulic oil in control oil inlet pipe 400 can pass through
Connecting tube 250 is directed into annular accommodating chamber 240 and is directed into by oil guiding hole 320 in the second accommodating chamber and valve element 300 is produced
Raw input pressure straight up；Spring 600 deforms and elastic force straight down is produced to valve element 300 simultaneously；Main oil inlet
Hydraulic oil in 210 can produce main input pressure straight up to valve element 300；
It is hereby understood that the active force of direction straight down is control pressure and elastic force sum, valve element 300 on valve element 300
The active force of upper direction straight up is input pressure and main input pressure sum, and control pressure is more than with elastic force sum
Input pressure and main input pressure sum so that the lower end of valve element 300 is resisted against in annular abutment portion, main oil inlet 210 and master
Both blockings of oil-out 220；
When control oil pipe 420 and pilot valve 110 are closed, the hydraulic oil in the first accommodating chamber 310 is led by oil guide pipe 430
Go out to control flowline 410, the hydraulic oil in control oil inlet pipe 400 can be directed into the second accommodating chamber and produce straight up
Input pressure, while spring 600 deforms and elastic force straight down is produced to valve element 300；Hydraulic pressure in main oil inlet 210
Oil can produce main input pressure straight up to valve element 300；
It is hereby understood that the active force of direction straight down is elastic force on valve element 300, on valve element 300, direction is straight up
Active force be input pressure and main input pressure sum, and input pressure and main input pressure sum are more than elastic force, make
Obtain valve element 300 to move axially upwards along through hole, both conductings of main oil inlet 210 and main oil-out 220.
Preferably, multiple first sealing rings 700, the both sides difference of the first sealing ring 700 are provided with the outer surface of valve pocket
Contacted with valve pocket and cover plate 100, it is ensured that the sealing of both valve pocket and cover plate 100, it is to avoid the production of hydraulic fluid leak phenomenon occur
It is raw.
Further, multiple second sealing rings 710, the both sides of the second sealing ring 710 are provided with the outer surface of valve element 300
Contacted respectively with valve element 300 and valve pocket, it is ensured that the sealing of both valve element 300 and valve pocket, it is to avoid hydraulic fluid leak phenomenon occur
Generation.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. a kind of modified logical valve, it is characterised in that including：
Valve body；
Cover plate, it is arranged on valve body and the outer surface of cover plate is provided with pilot valve, is provided with the cover board and pilot valve phase
Connect and be used for the control oil circuit of hydraulic oil circulation；
Valve pocket, it is inserted on cover plate, and the main oil inlet and main oil-out communicated is offered on valve pocket；
Valve element, it is arranged on valve pocket and accommodating chamber is formed between valve element and valve pocket；
Hydraulic oil can be directed into accommodating chamber and promote valve element to be moved axially on valve pocket by the control oil circuit by pilot valve,
Valve element is enabled main oil inlet and main oil-out is turned on or is blocked.
2. a kind of modified logical valve according to claim 1, it is characterised in that the control oil circuit includes being arranged at lid
The control oil inlet pipe that is communicated on plate and with pilot valve, control flowline and control oil pipe, control oil inlet pipe, control flowline with
And the oil inlet of control oil pipe is respectively positioned on the same end face of cover plate, be additionally provided with the cover board two ends respectively with pilot valve and appearance
The oil guide pipe that chamber of receiving is communicated.
3. a kind of modified logical valve according to claim 2, the accommodating chamber includes the first accommodating chamber and second and accommodated
Chamber, the rear end face and valve pocket of the valve element form first accommodating chamber, and first accommodating chamber passes through oil guide pipe and pilot valve
Communicate, surrounded at the middle part of valve element and valve pocket into second accommodating chamber, second accommodating chamber is communicated with control oil inlet pipe.
4. a kind of modified logical valve according to claim 3, it is characterised in that ring-shaped step is offered on valve element
Face, offers ring-shaped step groove corresponding with annular step surface on valve pocket, and the annular step surface and ring-shaped step groove are formed
Second accommodating chamber.
5. a kind of modified logical valve according to claim 3 or 4, offers multiple oil guiding holes and each Oil Guide on valve element
The two ends in hole are communicated with the second accommodating chamber and control oil inlet pipe respectively.
6. a kind of modified logical valve according to claim 5, is formed with annular accommodating chamber between valve pocket and cover plate,
The connecting tube that two ends are communicated with control oil inlet pipe and annular accommodating chamber respectively is provided with cover plate.
7. a kind of modified logical valve according to claim 6, offers multiple connecting holes through cover plate on the cover board,
One end of screw and screw is provided with each connecting hole through connecting hole and is threadedly connected on valve body.
8. a kind of modified logical valve according to claim 7, the upper surface of valve element offers mounting groove, in mounting groove
The upper end for being provided with elastic component and the elastic component is resisted against on cover plate.
9. a kind of modified logical valve according to claim 8, multiple first sealing rings are provided with the outer surface of valve pocket,
The both sides of first sealing ring are contacted with valve pocket and cover plate respectively.
10. a kind of modified logical valve according to claim 9, multiple second sealings are provided with the outer surface of valve element
Circle, the both sides of second sealing ring are contacted with valve element and valve pocket respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621473669.3U CN206346979U (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621473669.3U CN206346979U (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206346979U true CN206346979U (en) | 2017-07-21 |
Family
ID=59319664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621473669.3U Withdrawn - After Issue CN206346979U (en) | 2016-12-30 | 2016-12-30 | A kind of modified logical valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206346979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762910A (en) * | 2016-12-30 | 2017-05-31 | 宁波华液机器制造有限公司 | A kind of modified logical valve |
-
2016
- 2016-12-30 CN CN201621473669.3U patent/CN206346979U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762910A (en) * | 2016-12-30 | 2017-05-31 | 宁波华液机器制造有限公司 | A kind of modified logical valve |
| CN106762910B (en) * | 2016-12-30 | 2018-11-13 | 宁波华液机器制造有限公司 | A kind of modified logical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170721 Effective date of abandoning: 20181113 |
|
| AV01 | Patent right actively abandoned |