CN2285842Y - Electric and hydraulic manual operation unloader valve - Google Patents
Electric and hydraulic manual operation unloader valve Download PDFInfo
- Publication number
- CN2285842Y CN2285842Y CN 95221860 CN95221860U CN2285842Y CN 2285842 Y CN2285842 Y CN 2285842Y CN 95221860 CN95221860 CN 95221860 CN 95221860 U CN95221860 U CN 95221860U CN 2285842 Y CN2285842 Y CN 2285842Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- oil
- hydraulic
- oil pocket
- 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
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to a hydraulic component which can be used for a hydraulic device and any occasion whose system needs to maintain pressure and unload. The electric and hydraulic manual operation unloader valve of the utility model comprises a valve cover, a valve body, a sealing ring, and a one-way ejecting valve which is composed of a spring, a valve seat, a cone valve, a steel ball, a steel ball seat and a valve rod between an oil inlet cavity and an oil outlet cavity in the valve body. The oil outlet cavity is connected with an operating cylinder. The utility model is characterized in that the front end of the valve rod of the one-way ejecting valve is provided with a pushing rod and a laminated spring; the other end of the pushing rod and an oscillating rod integrally move along an axial direction. The front end of the valve rod is also used as a special hydraulic cylinder piston. A cavity chamber on at least one end of a hydraulic cylinder oil cavity is communicated with an oil path controlled by an electromagnetic valve.
Description
The utility model is about a kind of hydraulic element, can be widely used in any occasion that hydraulic equipment, system need pressurize, off-load.
Pressurize off-load to hydraulic equipment, system at present mostly depends on hydraulic control or manual method off-load, because of manual off-load labor intensity big, and hydraulic unloading causes and can not off-load be a greater impact down to making to produce toward firmly breaking down owing to circuit, hydraulic system etc., even can not work fully.
The purpose of this utility model is exactly will overcome the deficiency that prior art exists and a kind of use, easy to operate is provided, and pressurize, off-load are reliable, can electric hydraulic control, the also manual unloading valve of electric liquid that can be manual.
The manual unloading valve of this electricity liquid, have valve gap, valve body, being in the seal ring, valve body into and out of the unidirectional ejector valve of forming by spring, valve seat, cone valve, steel ball, steel ball seat and valve rod between the oil pocket, go out oil pocket and operating cylinder links, it is characterized in that the valve rod front end in the unidirectional ejector valve is provided with push rod and Returnning spring thereof, the push rod the other end axially links with the fork that is provided with, the valve rod front end is also as ad hoc hydraulic cylinder piston, and this oil hydraulic cylinder oil pocket has an end chamber and oil circuit UNICOM by electromagnetic valve at least.
The utility model of said structure scheme has the off-load of electromagnetic valve hydraulic pressure and manual two kinds of effects of off-load concurrently, when going out oil pocket and entering pressure oil, because of the sealing of cone valve and steel ball is arranged, isolate into and out of oil pocket, go out oil pocket and form sealing, when controlling oil when electromagnetic valve imports, the hydraulic thrust that control oil produces, promotion valve rod reach is backed down steel ball and is used and promote cone valve simultaneously after oil pocket pressure descends and move, and reaches the purpose of the complete off-load of working oil chamber pressure oil.When circuit or hydraulic system break down in the equipment using process, adopt fork to push push rod, push rod promptly promotes the valve rod reach, realizes the purpose of working oil chamber pressure oil off-load equally, and the proper functioning of hydraulic equipment is guaranteed.
Further launch the utility model below in conjunction with description of drawings, provide most preferred embodiment simultaneously.
Fig. 1 is the utility model example structure sectional view.
Fig. 2 is the valve cover structure sectional view that is provided with one-way valve.
Wherein, 1, handle; 2, fork; 3, fork rotating shaft; 4, push rod; 5, top stem casing; 6, Returnning spring; 7,13,15, seal ring; 8, solenoid valve; 9, valve seat; 10, steel ball; 11,12, valve gap; 14, valve body; 16, valve rod; 17, steel ball seat; 18, cone valve; 19, spring; 20, gland.
As shown in the figure, arrange on the structure between cone valve 18 and the fork 2 in the present embodiment is by valve rod 16, push rod 4, top stem casing 5, Returnning spring 6, fork rotating shaft 3, seal ring 7,13 etc. they to be installed together and can to import the K chamber and promptly import the chamber that the residing oil hydraulic cylinder oil pocket of valve rod 16 front ends is communicated with solenoid valve 8 by controlling oil, with action, the hydraulic pressure pressure-retaining system is carried out off-load control by handle 1.When valve rod 16 moves forward and backward, the t chamber be that the suction oil of the other end chamber that the K chamber isolates in the relative oil hydraulic cylinder oil pocket links to each other with oil suction chamber T by passage L, can certainly link to each other with other low pressure oil pocket, make the t chamber be in unloading condition all the time.Be provided with at valve gap 11 places as shown in Figure 2 have the valve gap of the one-way valve structures of forming by cone valve 18, valve seat 9, spring 19 time, special near being provided with between this valve gap 11 that goes out oil pocket P and the valve body 14 and going out the oil pocket Q that oil pocket P is communicated with, then present embodiment can be transformed into the manual unloading valve of two-position three way electricity liquid by bi-bit bi-pass, enlarged the utility model application area, at this moment pressure oil also can be flowed into by the P1 chamber, the P chamber is flowed out and is entered operating cylinder or seal container, and sealing pressurize by valve seat 9 and cone valve 18 and steel ball 10, unloading method is with above-mentioned.When the utility model is connected with hydraulic system, can adopt the formula of pulling, tubular type, flange-type that pattern is installed.Decide because of need the shape and the relevant position of parts such as above-mentioned push rod 4, top stem casing 5, steel ball 10, valve gap 11,12, valve body 14, seal ring 15, valve rod 16, steel ball seat 17, cone valve 18.Fit together with solenoid valve 8, control mode of the present utility model just is transformed into the manual dual-purpose unloading valve of electric liquid.
Present embodiment adopts steel ball 10 sealings and unlatching that place cone valve 18 guide holes, the hydraulic control and the thrust of manual control are greatly reduced, sealing surface adopts cone valve 18 with the linear sealing of valve seat 9 and under the effect of spring 19, steel ball seat 17, and steel ball 10 is more guaranteed with its sealing reliability of linear sealing of cone valve 18.The utility model and embodiment provide a kind of simple in structure, easy to operate, sealing is reliable, price is low, the life-span is long practical hydraulic element for the pressurize off-load of hydraulic equipment and system, and prospect is widely used.
Claims (2)
1, the manual unloading valve of a kind of electric liquid, has valve gap, valve body, seal ring, being in in the valve body, go out between the oil pocket by spring, valve seat, cone valve, steel ball, the unidirectional ejector valve that steel ball seat and valve rod are formed, go out oil pocket and operating cylinder links, it is characterized in that valve rod (16) front end in the unidirectional ejector valve is provided with push rod (4) and Returnning spring (6) thereof, push rod (4) the other end and axially interlock of the fork (2) that is provided with, valve rod (16) front end is also as ad hoc hydraulic cylinder piston, and this oil hydraulic cylinder oil pocket has an end chamber and the oil circuit UNICOM that is controlled by solenoid valve (8) at least.
2, according to the manual unloading valve of the described electric liquid of claim 1, it is characterized in that near being provided with between the valve gap (11) that goes out oil pocket P and the valve body (14) and going out the oil pocket Q that oil pocket P is communicated with, and locate relative set by cone valve (18) at valve gap (11), the one-way valve that valve seat (9), spring (19) are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95221860 CN2285842Y (en) | 1995-09-18 | 1995-09-18 | Electric and hydraulic manual operation unloader valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95221860 CN2285842Y (en) | 1995-09-18 | 1995-09-18 | Electric and hydraulic manual operation unloader valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2285842Y true CN2285842Y (en) | 1998-07-08 |
Family
ID=33869359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95221860 Expired - Fee Related CN2285842Y (en) | 1995-09-18 | 1995-09-18 | Electric and hydraulic manual operation unloader valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2285842Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438041A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Electro-hydraulic pilot control type plug-in type check valve |
-
1995
- 1995-09-18 CN CN 95221860 patent/CN2285842Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438041A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Electro-hydraulic pilot control type plug-in type check valve |
| CN103438041B (en) * | 2013-08-26 | 2015-08-05 | 广东伊之密精密机械股份有限公司 | The plug-in one-way valve of electricity liquid pilot control type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |