CN104235435A - Stacked double throttle check valve - Google Patents
Stacked double throttle check valve Download PDFInfo
- Publication number
- CN104235435A CN104235435A CN201410430670.7A CN201410430670A CN104235435A CN 104235435 A CN104235435 A CN 104235435A CN 201410430670 A CN201410430670 A CN 201410430670A CN 104235435 A CN104235435 A CN 104235435A
- Authority
- CN
- China
- Prior art keywords
- hydraulic fluid
- fluid port
- throttle valve
- check valve
- valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a stacked double throttle check valve, which is characterized by comprising a first throttle check valve and a second throttle check valve arranged symmetrically, wherein the first throttle check valve comprises a first valve element and a first valve seat; a first oil mouth is arranged on one side of the first throttle check valve; a second oil mouth is arranged on the other side of the first throttle check valve; a throttling opening for communicating the first oil mouth and the second oil mouth is arranged between the first valve element and the first valve seat; the second throttle check valve comprises a second valve element and a second valve seat; a third oil mouth is arranged on one side of the second throttle check valve; a fourth oil mouth is arranged on the other side of the second throttle check valve; a throttling opening for communicating the third oil mouth and the fourth oil mouth is arranged between the second valve element and the second valve seat. The stacked throttle check valve can carry out throttling in two directions simultaneously, i.e. meter in and meter out, and is simple in structure and convenient to use.
Description
Technical field
The present invention relates to a kind of overlapping two.
Background technique
Throttle valve is that throttle valve then be may be combined with into one-way throttle valve with one-way valve parallel connection, and throttle valve and one-way throttle valve are easy flow control valves by changing throttling cross section or chock length to control the valve of fluid flow.But one-way throttle valve only has a throttling action, i.e. meter in or meter out.
Summary of the invention
For the problems referred to above, the invention provides a kind of overlapping two, the throttling of both direction can be carried out, i.e. meter in and meter out simultaneously.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of overlapping two, it is characterized in that, comprise symmetrically arranged first one-way throttle valve and the second one-way throttle valve, described first one-way throttle valve comprises the first spool and the first valve seat, described first one-way throttle valve side arranges the first hydraulic fluid port, opposite side arranges the second hydraulic fluid port, is provided with the restriction that can be communicated with the first hydraulic fluid port and the second hydraulic fluid port between described first spool and the first valve seat; Described second one-way throttle valve comprises the second spool and the second valve seat, described second one-way throttle valve side arranges the 3rd hydraulic fluid port, opposite side arranges the 4th hydraulic fluid port, is provided with the restriction that can be communicated with the 3rd hydraulic fluid port and the 4th hydraulic fluid port between described second spool and the second valve seat.
Preferably, described first one-way throttle valve end is provided with the first adjusting screw, and described first spool is provided with the first spring.
Preferably, described second one-way throttle valve end is provided with the second adjusting screw, and described second spool is provided with the second spring.
One of them one-way throttle valve is used for unidirectional meter in, and another one-way throttle valve is used for unidirectional meter out, the size of restriction can be regulated to realize throttling by adjusting screw, and structure is simple, easy to use.
The invention has the beneficial effects as follows: the throttling simultaneously can carrying out both direction, i.e. meter in and meter out, structure is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of overlapping two of the present invention;
The mark implication of accompanying drawing is as follows:
1: the first one-way throttle valve; 2: the second one-way throttle valves; 3: the first hydraulic fluid ports; 4: the second hydraulic fluid ports; 5: the three hydraulic fluid ports; 6: the four hydraulic fluid ports; 7: the first adjusting screw; 8: the first spools; 9: the first springs; 10: restriction; 11: valve seat; 12: the second springs; 13: the second spools; 14: the second adjusting screw.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical solution of the present invention is described in further detail, can better understand the present invention to make those skilled in the art and can be implemented, but illustrated embodiment is not as a limitation of the invention.
A kind of overlapping two, as shown in Figure 1, comprise symmetrically arranged first one-way throttle valve 1 and the second one-way throttle valve 2, one-way throttle valve is made up of throttle valve and one-way valve parallel connection.Described first one-way throttle valve 1 comprises the first spool 8 and the first valve seat 11, described first one-way throttle valve 1 side (upside in figure) arranges the first hydraulic fluid port 3, downside in opposite side and figure arranges the second hydraulic fluid port 4, and wherein, fluid can only one-way flow between the first hydraulic fluid port 3 and the second hydraulic fluid port 4.
The restriction 10 that can be communicated with the first hydraulic fluid port 3 and the second hydraulic fluid port 4 is provided with between described first spool 8 and the first valve seat 11, preferably, described first one-way throttle valve 1 end (left side in figure) is provided with the first adjusting screw 7, described first spool 8 is provided with the first spring 9, the size of spring force can be changed by the first adjusting screw 7, and then change the size of restriction 10, realize throttling.
Same, described second one-way throttle valve 2 comprises in the second spool 13 and the second valve seat 11(figure unmarked), described second one-way throttle valve 2 side (upside in figure) arranges the 3rd hydraulic fluid port 5, downside in opposite side and figure arranges the 4th hydraulic fluid port 6, be provided with the restriction 10 that can be communicated with the 3rd hydraulic fluid port 5 and the 4th hydraulic fluid port 6 between described second spool 13 and the second valve seat 11, fluid can only one-way flow between the 3rd hydraulic fluid port 5 and the 4th hydraulic fluid port 6.
Preferably, the second one-way throttle valve 2 end is provided with the second adjusting screw 14, and described second spool 13 is provided with the second spring 12.
Suppose the Double throttle check valve of said structure, the circulating direction of fluid is: from the first hydraulic fluid port 3 to the second hydraulic fluid port 4, from the 4th hydraulic fluid port 6 to the three hydraulic fluid port 5, so in order to the working life of assurance device, preferably, first hydraulic fluid port 3 is provided with filter, 4th hydraulic fluid port 6 is provided with filter, such as hydraulic oil filter.
When fluid flow to the second hydraulic fluid port 4 from the first hydraulic fluid port 3 through the restriction 10 of formation between the first valve seat 11 and the first spool 8, the size of restriction 10 can carry out axial adjustment by the first adjusting screw 7, realizes throttling; When fluid to overcome the spring force of the second spring 12 along the direction of the second spool 13 from the 4th hydraulic fluid port 6, push the second spool 13 to the right open, flow to the 3rd hydraulic fluid port 5 smoothly.Can carry out the throttling of both direction, i.e. meter in and meter out, structure is simple, easy to use simultaneously.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in the technical field that other are relevant, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. an overlapping two, it is characterized in that, comprise symmetrically arranged first one-way throttle valve (1) and the second one-way throttle valve (2), described first one-way throttle valve (1) comprises the first spool (8) and the first valve seat (11), described first one-way throttle valve (1) side arranges the first hydraulic fluid port (3), opposite side arranges the second hydraulic fluid port (4), is provided with the restriction (10) that can be communicated with the first hydraulic fluid port (3) and the second hydraulic fluid port (4) between described first spool (8) and the first valve seat (11); Described second one-way throttle valve (2) comprises the second spool (13) and the second valve seat (11), described second one-way throttle valve (2) side arranges the 3rd hydraulic fluid port (5), opposite side arranges the 4th hydraulic fluid port (6), is provided with the restriction (10) that can be communicated with the 3rd hydraulic fluid port (5) and the 4th hydraulic fluid port (6) between described second spool (13) and the second valve seat (11).
2. a kind of overlapping two according to claim 1, is characterized in that, described first one-way throttle valve (1) end is provided with the first adjusting screw (7), and described first spool (8) is provided with the first spring (9).
3. a kind of overlapping two according to claim 1, is characterized in that, described second one-way throttle valve (2) end is provided with the second adjusting screw (14), and described second spool (13) is provided with the second spring (12).
4. a kind of overlapping two according to Claims 2 or 3, is characterized in that, described first hydraulic fluid port (3) is provided with filter.
5. a kind of overlapping two according to claim 4, is characterized in that, described 4th hydraulic fluid port (6) is provided with filter.
6. a kind of overlapping two according to claim 4, is characterized in that, described filter is hydraulic oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430670.7A CN104235435A (en) | 2014-08-29 | 2014-08-29 | Stacked double throttle check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430670.7A CN104235435A (en) | 2014-08-29 | 2014-08-29 | Stacked double throttle check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235435A true CN104235435A (en) | 2014-12-24 |
Family
ID=52224074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430670.7A Pending CN104235435A (en) | 2014-08-29 | 2014-08-29 | Stacked double throttle check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965591A (en) * | 2017-11-24 | 2018-04-27 | 邢志红 | The bidirectional throttling valve that can be used separately |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1662150A1 (en) * | 2003-08-04 | 2006-05-31 | Hitachi Construction Machinery Co., Ltd. | Directional control valve block |
| CN200993251Y (en) * | 2006-12-08 | 2007-12-19 | 奇瑞汽车有限公司 | Non-return valve for automobile automic speed variator |
| CN101430014A (en) * | 2007-11-09 | 2009-05-13 | 上海立新液压有限公司 | Stacked unidirectional throttle valve |
| CN201269334Y (en) * | 2008-10-22 | 2009-07-08 | 上海立新液压有限公司 | Overlapping-mounted one-way throttle valve |
| CN101761673A (en) * | 2008-12-11 | 2010-06-30 | 天津西林环氧树脂灌封设备设计中心 | Duplex one-way fluid valve |
| CN103742681A (en) * | 2013-10-28 | 2014-04-23 | 江苏合丰机械制造有限公司 | High-pressure combined one-way valve |
| CN204140959U (en) * | 2014-08-29 | 2015-02-04 | 苏州福润机械有限公司 | A kind of overlapping two |
-
2014
- 2014-08-29 CN CN201410430670.7A patent/CN104235435A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1662150A1 (en) * | 2003-08-04 | 2006-05-31 | Hitachi Construction Machinery Co., Ltd. | Directional control valve block |
| CN200993251Y (en) * | 2006-12-08 | 2007-12-19 | 奇瑞汽车有限公司 | Non-return valve for automobile automic speed variator |
| CN101430014A (en) * | 2007-11-09 | 2009-05-13 | 上海立新液压有限公司 | Stacked unidirectional throttle valve |
| CN201269334Y (en) * | 2008-10-22 | 2009-07-08 | 上海立新液压有限公司 | Overlapping-mounted one-way throttle valve |
| CN101761673A (en) * | 2008-12-11 | 2010-06-30 | 天津西林环氧树脂灌封设备设计中心 | Duplex one-way fluid valve |
| CN103742681A (en) * | 2013-10-28 | 2014-04-23 | 江苏合丰机械制造有限公司 | High-pressure combined one-way valve |
| CN204140959U (en) * | 2014-08-29 | 2015-02-04 | 苏州福润机械有限公司 | A kind of overlapping two |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965591A (en) * | 2017-11-24 | 2018-04-27 | 邢志红 | The bidirectional throttling valve that can be used separately |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |