CN2130217Y - Liquid controlled single-single way throttle composite valve - Google Patents
Liquid controlled single-single way throttle composite valve Download PDFInfo
- Publication number
- CN2130217Y CN2130217Y CN 92201982 CN92201982U CN2130217Y CN 2130217 Y CN2130217 Y CN 2130217Y CN 92201982 CN92201982 CN 92201982 CN 92201982 U CN92201982 U CN 92201982U CN 2130217 Y CN2130217 Y CN 2130217Y
- Authority
- CN
- China
- Prior art keywords
- valve
- way
- control
- cover plate
- way throttle
- 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 - Lifetime
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a hydraulic control one-way valve and a one-way throttling composite valve which are used for a hydraulic system and comprise cartridge inserted valves. When used for two-way control, the utility model which comprises two sets of two-way cartridge inserted valves with throttling end parts and two sets of controlling cover plates with piston push rods and regulating rods can replace two conventional hydraulic one-way valves and two conventional one-way throttling valves; when used for one-way control, the utility model which comprises one set of the two-way cartridge inserted valve with a throttling end part and one set of the controlling cover plate can replace one conventional hydraulic one-way valve and one conventional one-way throttling valve. Thus, the utility model obtains the purpose of compact structure, reducing the amount of parts, and reducing the volume and the weight.
Description
The utility model is a kind of fluid-control one-way, one-way throttle combination valve.
In hydraulic control system, employed Pilot operated check valve is made up of valve body, spool, valve seat, hydraulic control push rod and cover plate at present.And one-way throttle valve is made up of valve body, throttling valve core, nonreturn valve core, valve seat, controlling device and cover plate.Need folk prescription to be made up of a Pilot operated check valve, an one-way throttle valve and corresponding connecting tube or connection manifold block to the oil hydraulic circuit of fluid-control one-way and one-way throttle, the above-mentioned loop of twocouese then need or connect manifold block by two Pilot operated check valves, two one-way throttle valves and corresponding connecting tube and form.Therefore, the part of composition is more, makes that workload is big, weight and volume be bigger.
In order to address the above problem, the spy develops the utility model fluid-control one-way, one-way throttle combination valve, and a kind of combination valve that is made of two-way plug-in valve, hydraulic control push rod, valve body and control cover plate thereof replaces normally used Pilot operated check valve and one-way throttle valve.Thereby reach the minimizing number of spare parts, compact structure, the purpose that volume and weight are less.
Fig. 1 a is unidirectional fluid-control one-way, one-way throttle combination valve.Two-way plug-in valve (2), hydraulic control push rod (3), an end that one group of band throttling end is housed in the valve body (1) are equipped with control cover plate, and control cover plate is made up of cover plate (5), piston push rod (4), adjustable lever (6), flange (7), adjusting handle (9), screw (8) and flat deck (10); A, B are respectively the passway of fluid-control one-way, one-way throttle combination valve; Pressure oil circuit when the A chamber, push the spool of cartridge valve (2) open, promote piston push rod (4) to the outermost end position by spool, spool is all opened, pressure oil passes to B by A, logical again cylinder or the oil motor of deoiling drives load, and cartridge valve plays the one-way valve in the one-way throttle valve and the acting in conjunction of Pilot operated check valve like this.
When pressure oil passes to A by B, the logical pressure oil of control oil channel X this moment, piston push rod (4) is pushed to left end, hydraulic control push rod (3) then is pushed to right-hand member plug-in mounting spool (2) is opened, spool is opened the restriction that program is subjected to piston push rod, and the piston push rod position is then set up by adjustable lever (6), therefore adjusts adjustable lever may command spool aperture size, thereby reach the purpose of throttling, this moment, cartridge valve played a part throttling and Pilot operated check valve.
When fuel cut-off, the pressure of setting up in oil cylinder and the oil motor is closed cartridge valve to the passage of control cover plate by B, plays the effect of Pilot operated check valve.
The utility model can also be designed to twocouese or folk prescription superposes or vertically superposes or board-like, tubular type Connecting format combination valve to level.
When adopting vertical stacking pattern to form the multiloop hydraulic system, traditional Pilot operated check valve, each loop of one-way throttle valve need increase a manifold block, and the combination valve of the shape that vertically superposes then can directly superpose and not need to increase manifold block.The loop is many more, and the effect that then reduces volume and weight is remarkable more.
Fig. 1 a is the structural drawing of unidirectional fluid-control one-way, one-way throttle combination valve;
Fig. 1 b is the schematic diagram of unidirectional fluid-control one-way, one-way throttle combination valve;
Fig. 2 a is the structural drawing of unidirectional fluid-control one-way, one-way throttle combination valve;
Fig. 2 b is the schematic diagram of unidirectional fluid-control one-way, one-way throttle combination valve.
Embodiment:
Be further described in conjunction with the accompanying drawings:
Two-way compound valve body in Fig. 2 a is made by No. 35 forgings and machining forms, and two-way plug-in valve (2), the hydraulic control push rod (3) of two groups of band throttling ends is housed in the valve body (1), and a control cover plate that structure is identical respectively is equipped with at the valve body two ends; Control cover plate is by cover plate body (5), and piston push rod (4), adjustable lever (6), flange (7), adjusting handle (9) and locking nut (8) constitute; Control cover plate is fixed on the valve body (1) with screw, and lower plane has the bolt mounting holes of five break-through on this valve body, and two through holes are arranged, a logical pressure hydraulic fluid port P, and O is returned in another logical oil return, valve body front upper mounting plate formula solenoid directional control valve; A, A1, B, B1 are respectively the passway of two-way combination valve, when the logical pressure oil of A1, when B1 leads to oil return, because of the B1 passage passes to A end control cover plate, the exocoel of piston push rod (4), because this moment, B1 connected the loop, so exocoel does not have pressure, the pressure oil one tunnel in A1 chamber is pushed open, the spool of A end cartridge valve (2), promote piston push rod (4) to the outermost end position by spool, spool is all opened, and pressure oil passes to A logical again deoil cylinder or oil motor drive load by A1.This moment, A end cartridge valve played the one-way valve in the one-way throttle valve and the acting in conjunction of Pilot operated check valve; Another road pressure oil promotes hydraulic control push rod (3) to the right, and promotion B end cartridge valve is opened to the right till the piston push rod (4) that pushes up B end control cover plate.Because A1 cavity pressure oil can pass to the exocoel of B end control cover plate piston push rod (4) through passage, so exocoel has pressure that piston push rod (4) is pressed to the inboard, its push rod has just limited the opening degree of B end valve core, by rotation B end adjusting handle (9) rotary regulating lever (6), can adjust the opening degree of spool, thereby reach the purpose of throttling, the logical B chamber of oil return oil return that come by oil cylinder or oil motor this moment through flowing into the B1 control behind the throttling spool.B end cartridge valve plays a part throttle valve and the Pilot operated check valve in the one-way throttle valve at this moment; When A1, B1 chamber all during fuel cut-off, the two ends cartridge valve is closed to the passage of control cover plate by A, B by the pressure of setting up in oil cylinder or the oil motor, the position of lock letter oil cylinder and oil motor, play the effect of twocouese Pilot operated check valve, otherwise if the logical pressure oil of B1, A1 leads to oil return, and working principle is identical, and just direction is opposite.
Claims (2)
1, a kind of hydraulic control combination valve that is used for hydraulic system, it is characterized in that: have a valve body (1), the two-way plug-in valve (2) of band throttling end is housed in the valve body, the control cover plate of hydraulic control push rod (3) and band piston push rod (4) and adjustable lever (6) is formed a combination valve with Pilot operated check valve and one-way throttle valve action.
2, combination valve according to claim 1 is characterized in that: can adopt one group of two-way plug-in valve, one group of control cover plate is formed fluid-control one-way, the one-way throttle combination valve of folk prescription to control; Also can adopt two groups of two-way plug-in valves, two groups of control cover plate are formed fluid-control one-way, the one-way throttle combination valve of twocouese control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201982 CN2130217Y (en) | 1992-01-29 | 1992-01-29 | Liquid controlled single-single way throttle composite valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201982 CN2130217Y (en) | 1992-01-29 | 1992-01-29 | Liquid controlled single-single way throttle composite valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2130217Y true CN2130217Y (en) | 1993-04-21 |
Family
ID=33761224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92201982 Expired - Lifetime CN2130217Y (en) | 1992-01-29 | 1992-01-29 | Liquid controlled single-single way throttle composite valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2130217Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564871A (en) * | 2015-01-15 | 2015-04-29 | 武汉船用机械有限责任公司 | Low-pressure-loss overlapped type hydraulic one-way valve |
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
| CN107559253A (en) * | 2017-08-30 | 2018-01-09 | 上海中驰自动控制技术有限公司 | A kind of compound liquid control one-way throttle valve of Novel threaded plug-in |
| CN110023631A (en) * | 2016-11-18 | 2019-07-16 | Smc株式会社 | It is directly mounted at the combination valve of the port of fluid pressure device |
-
1992
- 1992-01-29 CN CN 92201982 patent/CN2130217Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564871A (en) * | 2015-01-15 | 2015-04-29 | 武汉船用机械有限责任公司 | Low-pressure-loss overlapped type hydraulic one-way valve |
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
| CN110023631A (en) * | 2016-11-18 | 2019-07-16 | Smc株式会社 | It is directly mounted at the combination valve of the port of fluid pressure device |
| CN107559253A (en) * | 2017-08-30 | 2018-01-09 | 上海中驰自动控制技术有限公司 | A kind of compound liquid control one-way throttle valve of Novel threaded plug-in |
| CN107559253B (en) * | 2017-08-30 | 2019-12-31 | 上海中驰自动控制技术有限公司 | Novel screw thread cartridge formula compound liquid accuse one-way throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |