CN110285103A - A kind of safe hydraulic control lock of combined bidirectional - Google Patents
A kind of safe hydraulic control lock of combined bidirectional Download PDFInfo
- Publication number
- CN110285103A CN110285103A CN201910737800.4A CN201910737800A CN110285103A CN 110285103 A CN110285103 A CN 110285103A CN 201910737800 A CN201910737800 A CN 201910737800A CN 110285103 A CN110285103 A CN 110285103A
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- China
- Prior art keywords
- valve
- hole
- hydraulic control
- pressure
- oil
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 21
- 239000000446 fuel Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 42
- 238000010586 diagram Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to hydraulic lock technical fields, disclose a kind of safe hydraulic control lock of combined bidirectional, including main valve body, the left and right ends of the main valve body are separately installed with left valve barrel and right valve barrel, high pressure pressure limiting relief valve is separately installed on left valve barrel and right valve barrel, spool is installed inside the main valve body intermediate throughholes, two unidirectional stop valves are also equipped with inside main valve body, and be symmetricly set on spool two sides.The present invention, it is structurally reasonable, it is novel in design, when making the oil pressure in pipeline reach the pressure value of high pressure pressure limiting relief valve setting by the high pressure pressure limiting relief valve being equipped with, it begins to the pressure oil in pressure duct to be released back into the oil duct of the hole T, the generation for leading to hydraulicefficiency telecontrol loading failure situation due to high ambient temperature is avoided, structure is simple, at low cost.
Description
Technical field
The present invention relates to hydraulic lock technical field, specifically a kind of safe hydraulic control lock of combined bidirectional.
Background technique
Hydraulic lock is exactly one " lock ", exactly circuit is lockked, circuit oil liquid is not allowed to have flowing, to guarantee as its name suggests
Even if the oil cylinder external world is still able to maintain in the case where having certain load, its position is stationary, and hydraulic control one-way valve specific structure is exactly one
A check valve with hydraulic control mouth.There are valve seat, steel ball, spring, hydraulic control mouth, control tri- hydraulic fluid ports of plunger and A, B, X, the side A-B
To hydraulic oil overcomes spring force, pushes steel ball open, directly flows through；The direction B-A, steel ball are fallen on valve seat, and oil stream is not pass by, and are needed
It to be acted on control plunger in control oil of the X mouthfuls of accesses with pressure, control oil, push plunger advancement, plunger connects push rod,
Push rod opens steel ball, and such hydraulic oil can " reversed " flowing.
Hydraulic lock is applied in hydraulicefficiency telecontrol system more at present, in control clack box into the pipeline between hydraulic load, because
High ambient temperature causes the pressure rise at high temperature of the hydraulic oil in pipeline, leads to being pressed too for the hydraulic control lock being set in control clack box
Height, and the cisco unity malfunction under system pressure, so that hydraulicefficiency telecontrol loading failure, therefore, it is necessary to hydraulic be locked into current
Row improves.
Summary of the invention
The purpose of the present invention is to provide a kind of safe hydraulic control locks of combined bidirectional, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of safe hydraulic control lock of combined bidirectional, including main valve body, the left and right ends of the main valve body are separately installed with left valve
High pressure pressure limiting relief valve, peace inside the main valve body intermediate throughholes are separately installed on body and right valve barrel, left valve barrel and right valve barrel
Equipped with spool, two unidirectional stop valves are also equipped with inside main valve body, and be symmetricly set on spool two sides.
As a further solution of the present invention: the spool is equipped with O-shaped seal groove, is equipped on O-shaped seal groove O-shaped close
Seal.
As a further solution of the present invention: the both ends of the spool are inserted respectively into the shut-off valve oil inlet of unidirectional stop valve
Kong Shang.
As a further solution of the present invention: the relief valve fuel feed hole of the high pressure pressure limiting relief valve passes through unidirectional stop valve
Thread pitch be communicated on the shut-off valve oil outlet of unidirectional stop valve.
As a further solution of the present invention: the main valve body be rectangular parallelepiped structure, and set on upper and lower surface there are four peace
Fill hole.
As a further solution of the present invention: set in the middle part of the main valve body there are four oilhole, the respectively hole A oil duct, the hole B is oily
Road, the hole P oil duct and the hole T oil duct.
As a further solution of the present invention: the hole A oil duct and the hole B oil duct pass through respectively between the screw thread of unidirectional stop valve
Gap is communicated on the relief valve fuel feed hole of high pressure pressure limiting relief valve.
As a further solution of the present invention: the relief valve oil outlet of the high pressure pressure limiting relief valve passes through pressure release oil return pipe
Road is communicated with the hole T oil duct.
As further scheme of the invention: the hole P oil duct is connected with power source inlet.
Compared with prior art, the beneficial effects of the present invention are:
The safe hydraulic control lock of a kind of combined bidirectional, it is structurally reasonable, it is novel in design, made by the high pressure pressure limiting relief valve being equipped with
Oil pressure in pipeline when reaching the pressure value of high pressure pressure limiting relief valve setting, begin to the pressure oil in pressure duct to release
It puts back in the oil duct of the hole T, avoids the generation for leading to hydraulicefficiency telecontrol loading failure situation due to high ambient temperature, structure is simple, at
This is low.
Detailed description of the invention
Fig. 1 is a kind of shape positive structure diagram of the safe hydraulic control lock of combined bidirectional.
Fig. 2 is the structural schematic diagram that a kind of shape of the safe hydraulic control lock of combined bidirectional is overlooked.
Fig. 3 is that the schematic diagram of the section structure is faced in a kind of inside of the safe hydraulic control lock of combined bidirectional.
Fig. 4 is a kind of inside top the schematic diagram of the section structure of the safe hydraulic control lock of combined bidirectional.
Fig. 5 is a kind of left view structural representation of the safe hydraulic control lock of combined bidirectional.
Fig. 6 is a kind of operation principle schematic diagram of the safe hydraulic control lock of combined bidirectional.
In figure: 1- main valve body, 2- left valve barrel, 3- high pressure pressure limiting relief valve, 4- unidirectional stop valve, 5- shut-off valve fuel feed hole,
6- relief valve fuel feed hole, 7- relief valve oil outlet, 8- pressure release oil returning tube, 9- shut-off valve oil outlet, the hole 10-A oil duct, the hole 11-B
Between oil duct, 12- spool, 13-O type sealing ring, 14- mounting hole, the hole 15-P oil duct, the hole 16-T oil duct, 17- right valve barrel, 18- screw thread
Gap.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment 1
Refering to fig. 1~6, in the embodiment of the present invention, a kind of safe hydraulic control lock of combined bidirectional, including main valve body 1, the main valve body
1 is rectangular parallelepiped structure, and is set on upper and lower surface there are four mounting hole 14, sets that there are four oilholes in the middle part of the main valve body 1, respectively
The hole A oil duct 10, the hole B oil duct 11, the hole P oil duct 15 and the hole T oil duct 16, the hole A oil duct 10 and the hole B oil duct 11 are respectively by unidirectional
The thread pitch 18 of shut-off valve 4 is communicated on the relief valve fuel feed hole 6 of high pressure pressure limiting relief valve 3, the high pressure pressure limiting relief valve 3
Relief valve oil outlet 7 hole T oil duct 16 is communicated with by pressure release oil returning tube 8, the hole P oil duct 15 is connected with power source and enters
Mouthful, the left and right ends of the main valve body 1 are separately installed with left valve barrel 2 and right valve barrel 17, and left valve barrel 2 and right valve barrel 17 are board-like right
It connects, is screwed, high pressure pressure limiting relief valve 3, the high pressure pressure limiting relief valve are separately installed on left valve barrel 2 and right valve barrel 17
3 relief valve fuel feed hole 6 is communicated with the shut-off valve oil outlet 9 of unidirectional stop valve 4 by the thread pitch 18 of unidirectional stop valve 4
On, spool 12 is installed, the both ends of the spool 12 are inserted respectively into unidirectional stop valve 4 inside 1 intermediate throughholes of main valve body
Shut-off valve fuel feed hole 5 on, two unidirectional stop valves 4 are also equipped with inside main valve body 1, and be symmetricly set on 12 two sides of spool.
Embodiment 2
In another embodiment of the invention, it is in place of the difference of the embodiment and above-described embodiment, on the spool 12
Equipped with O-shaped seal groove, O-ring seal 13 is installed on O-shaped seal groove, further ensures spool 12 in the centre of main valve body 1
Leakproofness when being moved on through-hole.
The working principle of the invention is: making the oil pressure in pipeline reach high pressure by the high pressure pressure limiting relief valve 3 being equipped with
When the pressure value that pressure limiting relief valve 3 is set, begins to the pressure oil in pressure duct to be released back into the hole T oil duct 16, avoid
Lead to the generation of hydraulicefficiency telecontrol loading failure situation due to high ambient temperature, structure is simple, at low cost, high pressure pressure limiting relief valve
3 settings are adjustable to be released stress, and when the pressure of pipeline is higher than releasing stress for setting, the high pressure in region is released back into the hole T by this valve
16 oil return of oil duct.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of safe hydraulic control lock of combined bidirectional, including main valve body (1), the peace respectively of the left and right ends of the main valve body (1)
Equipped with left valve barrel (2) and right valve barrel (17), which is characterized in that be separately installed with high pressure limit on left valve barrel (2) and right valve barrel (17)
It presses relief valve (3), is equipped with spool (12) inside main valve body (1) intermediate throughholes, be also equipped with two inside main valve body (1)
Unidirectional stop valve (4), and spool (12) two sides are symmetricly set on, the both ends of the spool (12) are inserted respectively into unidirectional stop valve
(4) on shut-off valve fuel feed hole (5), the relief valve fuel feed hole (6) of the high pressure pressure limiting relief valve (3) passes through unidirectional stop valve
(4) thread pitch (18) is communicated on the shut-off valve oil outlet (9) of unidirectional stop valve (4).
2. the safe hydraulic control lock of a kind of combined bidirectional according to claim 1, which is characterized in that set on the spool (12)
There is O-shaped seal groove, O-ring seal (13) are installed on O-shaped seal groove.
3. a kind of safe hydraulic control lock of combined bidirectional according to claim 1, which is characterized in that the main valve body (1) is
Rectangular parallelepiped structure, and set on upper and lower surface there are four mounting hole (14).
4. the safe hydraulic control lock of a kind of combined bidirectional according to claim 1 or 3, which is characterized in that the main valve body (1)
Middle part is set there are four oilhole, the respectively hole A oil duct (10), the hole B oil duct (11), the hole P oil duct (15) and the hole T oil duct (16).
5. the safe hydraulic control lock of a kind of combined bidirectional according to claim 4, which is characterized in that the hole A oil duct (10)
It is communicated with the release of high pressure pressure limiting relief valve (3) by the thread pitch (18) of unidirectional stop valve (4) respectively with the hole B oil duct (11)
On valve fuel feed hole (6).
6. the safe hydraulic control lock of a kind of combined bidirectional according to claim 4, which is characterized in that the high pressure pressure limiting release
The relief valve oil outlet (7) of valve (3) is communicated with the hole T oil duct (16) by pressure release oil returning tube (8).
7. the safe hydraulic control lock of a kind of combined bidirectional according to claim 4, which is characterized in that the hole P oil duct (15)
It is connected with power source inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737800.4A CN110285103A (en) | 2019-08-12 | 2019-08-12 | A kind of safe hydraulic control lock of combined bidirectional |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737800.4A CN110285103A (en) | 2019-08-12 | 2019-08-12 | A kind of safe hydraulic control lock of combined bidirectional |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110285103A true CN110285103A (en) | 2019-09-27 |
Family
ID=68024994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737800.4A Pending CN110285103A (en) | 2019-08-12 | 2019-08-12 | A kind of safe hydraulic control lock of combined bidirectional |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110285103A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB957851A (en) * | 1961-04-27 | 1964-05-13 | Instag A G Suhr Ag | Improvements in or relating to hydraulic gears |
| GB1329336A (en) * | 1970-02-21 | 1973-09-05 | Ver Flugtechnische Werke | Device for hydraulic locking |
| CN85104488A (en) * | 1985-06-07 | 1986-09-03 | 上海市隧道管理所 | Hydraulic integrated actuator for adjusting moving blade or valve blade |
| JP2002310392A (en) * | 2001-04-13 | 2002-10-23 | Tlv Co Ltd | Orifice type steam trap |
| CN101629587A (en) * | 2009-08-06 | 2010-01-20 | 宁波汉商液压有限公司 | Hydraulic balance valve |
| CN102003423A (en) * | 2010-12-17 | 2011-04-06 | 徐州重型机械有限公司 | Hydraulic bidirectional lock and crane with same |
| CN109764019A (en) * | 2019-01-28 | 2019-05-17 | 日照海卓液压有限公司 | Based on the multi-way valve for having the function of androgynous repairing and overloading hydraulic lock being coaxially integrated |
-
2019
- 2019-08-12 CN CN201910737800.4A patent/CN110285103A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB957851A (en) * | 1961-04-27 | 1964-05-13 | Instag A G Suhr Ag | Improvements in or relating to hydraulic gears |
| GB1329336A (en) * | 1970-02-21 | 1973-09-05 | Ver Flugtechnische Werke | Device for hydraulic locking |
| CN85104488A (en) * | 1985-06-07 | 1986-09-03 | 上海市隧道管理所 | Hydraulic integrated actuator for adjusting moving blade or valve blade |
| JP2002310392A (en) * | 2001-04-13 | 2002-10-23 | Tlv Co Ltd | Orifice type steam trap |
| CN101629587A (en) * | 2009-08-06 | 2010-01-20 | 宁波汉商液压有限公司 | Hydraulic balance valve |
| CN102003423A (en) * | 2010-12-17 | 2011-04-06 | 徐州重型机械有限公司 | Hydraulic bidirectional lock and crane with same |
| CN109764019A (en) * | 2019-01-28 | 2019-05-17 | 日照海卓液压有限公司 | Based on the multi-way valve for having the function of androgynous repairing and overloading hydraulic lock being coaxially integrated |
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