CN111609182A - Stack formula liquid accuse check valve - Google Patents
Stack formula liquid accuse check valve Download PDFInfo
- Publication number
- CN111609182A CN111609182A CN201910139281.1A CN201910139281A CN111609182A CN 111609182 A CN111609182 A CN 111609182A CN 201910139281 A CN201910139281 A CN 201910139281A CN 111609182 A CN111609182 A CN 111609182A
- Authority
- CN
- China
- Prior art keywords
- check valve
- way valve
- valve
- valve body
- type
- 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
- 239000007788 liquid Substances 0.000 title description 2
- 238000005266 casting Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 17
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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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
- F16K15/04—Check valves with guided rigid valve members shaped as balls
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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
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check 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
- F16K27/00—Construction of housing; Use of materials therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a superposition type hydraulic control one-way valve, which comprises: valve body (1), traveller (2), check valve (3), characterized by: the check valve (3) is an integral threaded plug-in type check valve with a standard mounting hole. The invention has the following advantages: the assembly is simple; two different flow channel manufacturing methods can be selected according to the size of the batch; the structure with the O-shaped ring is more reliable in sealing, the machining precision is reduced, and the machining cost is saved.
Description
Technical Field
The invention relates to a superposition type hydraulic control one-way valve, in particular to a superposition type hydraulic control one-way valve which is good in pressure maintaining effect and simple to assemble. It is suitable for hydraulic systems of machining equipment such as plastic machinery, die casting machines, extruders, stretchers, oil presses, machine tools and the like.
Background
According to the conventional superposed hydraulic control one-way valve in the market at present, the one-way valves at two ends are of part type structures, parts belonging to the one-way valve part need to be assembled once each time when the superposed hydraulic control one-way valve is assembled, the production efficiency is low, the number of the parts is relatively large, the requirement on skills of assembly personnel is high, and like products produced by the same manufacturers mainly comprise oil research MP..
Disclosure of Invention
The invention aims to provide a one-way valve with integral structures at two-end one-way valve parts of a superposed hydraulic control one-way valve, and the superposed hydraulic control one-way valve is assembled only by screwing the integral threaded plug-in mounting type one-way valve with a standard mounting hole into a jack, so that the production efficiency is high, the number of parts is small, and the requirement on the skill of an assembling worker is low.
The invention also aims to provide two methods for manufacturing the internal flow passages of the valve body of the superposed hydraulic control one-way valve, which comprise the following steps: the first is to adopt casting flow channels a and b, which is suitable for mass production and reduces the machining workload; the second is to adopt the drill flow passages a 'and b', which is suitable for small-scale production without opening a casting die.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a stacked hydraulic control one-way valve which comprises a valve body 1, a sliding column 2 and a threaded plug-in type one-way valve 3 and is characterized in that the one-way valve 3 is a threaded plug-in type one-way valve with a standard mounting hole, the production efficiency is high, the number of parts is small, and the requirement on the skill of an assembler is low.
The further improvement of the scheme is as follows: the O-shaped ring 5 is additionally arranged on the sliding column 2, so that the high-pressure oil on one side of the sliding column 2 is effectively prevented from leaking into a low-pressure oil area on the other side, and the function failure of the valve is caused; meanwhile, after the O-shaped ring 5 is additionally arranged on the sliding column 2, the machining precision of the inner hole of the valve body 1 and the excircle of the sliding column 2 can be properly reduced, and because the clearance sealing is realized by utilizing hydraulic oil when the O-shaped ring 5 is not provided, the clearance is not required to be too large, otherwise, the internal leakage is caused; when the O-shaped ring 5 is arranged, the O-shaped ring is used for sealing, and the gap can be properly larger.
In addition, the internal flow passage of the valve body 1 can be manufactured by two methods: the first is to use casting runners a and b; the second is to use drilled flow paths a 'and b'.
The superposed hydraulic control one-way valve has the following advantages: the assembly is simple; two different flow channel manufacturing methods can be selected according to the size of the batch; the structure with the O-shaped ring is more reliable in sealing, the machining precision is reduced, and the machining cost is saved.
Drawings
FIG. 1 is a front view of a stacked pilot operated check valve profile according to the present invention;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
FIG. 3 is a cross-sectional view A-A of FIG. 1 (valve body using a cast runner, A, B port bi-directional dwell);
FIG. 4 is a cross-sectional view A-A of FIG. 1 (valve body employing a drilled flow passage, only port A holding pressure);
Detailed Description
The invention will be further explained with reference to the drawings.
Fig. 1 is a front view of the appearance of a superposition type hydraulic control one-way valve.
FIG. 2 is a sectional view taken along line B-B of FIG. 1, showing the intersection of the P → P1 and T → T1 passageways as oblique bores.
Fig. 3 is a sectional view a-a of fig. 1, the valve body using a casting runner, A, B ports bi-directional pressure holding. The superposed hydraulic control one-way valve comprises a valve body 1, a sliding column 2 and two threaded plug-in type one-way valves 3, wherein the one-way valves 3 are threaded plug-in type one-way valves with standard mounting holes, and the sliding column 2 is of a structure without an O-shaped ring, and the structure realizes clearance sealing by utilizing working oil (hydraulic oil); wherein, the two threaded cartridge one-way valves 3 respectively realize bidirectional pressure maintaining for the A, B ports.
Fig. 4 is a sectional view taken along line a-a of fig. 1, the valve body using a drilled flow passage and a port a holding pressure only. The superposed hydraulic control one-way valve comprises a valve body 1, a sliding column 2, a threaded plug-in type one-way valve 3, a plug 4 and an O-shaped ring 5, wherein the one-way valve 3 is a threaded plug-in type one-way valve with a standard mounting hole, the sliding column 2 is provided with an O-shaped ring 5, and the structure is sealed by the O-shaped ring; one of the threaded cartridge type one-way valves 3 only maintains pressure for the port A, the plug 4 is screwed when the other end does not require pressure maintaining, and if the port B only needs pressure maintaining, the threaded cartridge type one-way valve 3 and the plug 4 are just exchanged.
Code number description:
p, P1: a high-pressure oil inlet cavity (connected with a pressure source, such as an oil pump outlet);
t, T1: an oil return cavity (connected with an oil tank);
a: a high-pressure oil outlet cavity (connected with loads such as an oil cylinder and a hydraulic motor);
b: another oil outlet cavity (connected with load, such as oil cylinder and hydraulic motor) of the high-pressure oil;
a1: a high-pressure oil outlet cavity (adapter); b1: another oil outlet cavity (adapter) for high-pressure oil;
a. b: casting a runner; a1, b 1: drilling a flow channel;
1: a valve body; 2: a traveler; 3: a threaded cartridge type check valve; 4: plugging by screwing; 5: an O-ring.
Claims (3)
1. A stacked pilot operated check valve comprising: valve body (1), traveller (2), check valve (3), characterized by: the check valve (3) is an integral threaded plug-in type check valve with a standard mounting hole.
2. The superposition type pilot-operated check valve as recited in claim 1, wherein: the internal flow channels of the valve body (1) can be made in two ways, the first by casting the flow channels (a) and (b) and the second by drilling the flow channels (a ') and (b').
3. The traveller (2) according to claim 1, characterized in that: an O-shaped ring (5) is additionally arranged on the sliding column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139281.1A CN111609182A (en) | 2019-02-25 | 2019-02-25 | Stack formula liquid accuse check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139281.1A CN111609182A (en) | 2019-02-25 | 2019-02-25 | Stack formula liquid accuse check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111609182A true CN111609182A (en) | 2020-09-01 |
Family
ID=72202823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910139281.1A Pending CN111609182A (en) | 2019-02-25 | 2019-02-25 | Stack formula liquid accuse check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111609182A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290741Y (en) * | 1996-11-28 | 1998-09-09 | 阎学富 | Three-position four-way electromagnetic change valve |
| CN101429954A (en) * | 2007-11-08 | 2009-05-13 | 上海立新液压有限公司 | Stacking type hydraulic control check valve |
| CN201288863Y (en) * | 2008-10-22 | 2009-08-12 | 上海立新液压有限公司 | Superpose installation pilot-controlled check valve |
| CN203614481U (en) * | 2013-10-14 | 2014-05-28 | 宁波明启液压机械有限公司 | Stacked liquid-control unidirectional valve |
| CN204985878U (en) * | 2015-09-24 | 2016-01-20 | 涌镇液压机械（上海）有限公司 | Outer accuse type structure of stack formula hydraulically controlled check valve |
| CN206738281U (en) * | 2017-05-02 | 2017-12-12 | 广东华液动力科技有限公司 | A kind of super-pressure stacking type hydraulic control check valve |
-
2019
- 2019-02-25 CN CN201910139281.1A patent/CN111609182A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2290741Y (en) * | 1996-11-28 | 1998-09-09 | 阎学富 | Three-position four-way electromagnetic change valve |
| CN101429954A (en) * | 2007-11-08 | 2009-05-13 | 上海立新液压有限公司 | Stacking type hydraulic control check valve |
| CN201288863Y (en) * | 2008-10-22 | 2009-08-12 | 上海立新液压有限公司 | Superpose installation pilot-controlled check valve |
| CN203614481U (en) * | 2013-10-14 | 2014-05-28 | 宁波明启液压机械有限公司 | Stacked liquid-control unidirectional valve |
| CN204985878U (en) * | 2015-09-24 | 2016-01-20 | 涌镇液压机械（上海）有限公司 | Outer accuse type structure of stack formula hydraulically controlled check valve |
| CN206738281U (en) * | 2017-05-02 | 2017-12-12 | 广东华液动力科技有限公司 | A kind of super-pressure stacking type hydraulic control check valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |