CN106382269B - It is a kind of that there is speed governing, commutation, the combination valve of relief function - Google Patents
It is a kind of that there is speed governing, commutation, the combination valve of relief function Download PDFInfo
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- CN106382269B CN106382269B CN201610842471.6A CN201610842471A CN106382269B CN 106382269 B CN106382269 B CN 106382269B CN 201610842471 A CN201610842471 A CN 201610842471A CN 106382269 B CN106382269 B CN 106382269B
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- 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
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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Abstract
The invention discloses it is a kind of with speed governing, commutation, relief function combination valve, be related to combination valve technical field, including pressure-reducing valve, choke valve, safety valve, hand reversal valve and main valve body；Hydraulic oil is entered inside pressure-reducing valve by the oil inlet on main valve body, the flow speed control valve of pressure-reducing valve and choke valve composition with throttle grverning function, choke valve oil-out connects the oil inlet of hand reversal valve, the extraneous executive component of hand reversal valve connection, when executive component pressure is excessive, safety valve, which is opened, carries out off-load, can be put by changing the logical oil level of hand reversal valve, realize that executive component enters the change in fuel-displaced direction；Main valve body structure is devised, and pressure-reducing valve, choke valve and safety valve use valve element, valve bush type structure, are easy to manufacture to install；Slide bar, choke valve end cap, regulation handle prevent fluid from revealing using special construction design from inside to outside, have the advantages that simple leakage-preventing, oil circuit, compact conformation, safe and reliable and easily manufactured.
Description
Technical field
The present invention relates to combination valve technical field, and in particular to a kind of to have speed governing, commutation, the combination valve of relief function.
Background technology
Hydraulic valve is as the control element in hydraulic system, the function with control liquid flow path direction, pressure and flow, extensively
Applied in the various engineering fields such as machine tool industry, metallurgical industry, engineering machinery.
Certain hydraulic system needs to realize speed governing, commutation, relief function, can be being connected in a certain way with hydraulic oil pipe
Connect pressure-reducing valve, choke valve, safety valve, reversal valve and realize above-mentioned functions.But for small-sized machine system, leave the sky of hydraulic system for
Between very little, connected in a certain way using oil pipe pressure-reducing valve, choke valve, safety valve, reversal valve realize function scheme take
Space is big, inapplicable to some small-sized machine systems.
In consideration of it, being connected without oil pipe, pressure-reducing valve, choke valve, safety valve, reversal valve are merged in structure,
Forming one has speed governing, commutation, the combination valve of relief function, and this kind of combination valve has the advantages that compact conformation, small volume, fits
The requirement for answering its hydraulic system of small-sized machine system to occupy little space.
By patent retrieval, there is following known technical scheme：
Patent 1：
Application number：CN200910222569.1, the applying date：2009.11.20, authorized announcement date：2010.06.09, this hair
It is bright to belong to technical field of hydraulic elements, it is related to a kind of combined valve device, specifically a kind of collection hydraulic control one-way valve, one-way throttle
Valve, three kinds of functions of overflow valve are in the combination valve of one.The combination valve includes valve body, in valve body in provided with the first nonreturn valve core,
The control units such as the second nonreturn valve core, throttling plug, hydraulic control valve element and overflow assemblies, are reached by being applied in combination for each control unit
To actual requirement.Clever structure of the present invention, compact and reasonable, no internal connection is also just without leakage point, while connection is simple
It is single, maintenance can be easily dismantled rapidly, improve production efficiency；Rigidity and intensity are high, can bear 70MPa hyperpressure, safety
Reliably, it is applied widely；Integrate hydraulic control one-way valve, one-way throttle valve, three kinds of functions of overflow valve, can effectively save sky
Between, save cost.
Patent 2：
Application number：CN201510262080.2, the applying date：2015.05.20, authorized announcement date：
2015.08.05, the invention belongs to flow rate of hydraulic system control field, and in particular to one kind has stability of flow continuous
The hydraulic flow regulation control combination valve of regulation.It is mainly made up of flow control valve and electro-hydraulic servo control cylinder, the flow
Regulating valve is made up of the control valve for small flows (A) and large flux control valve (B) on body shell (C), and respectively by rill
Measure electro-hydraulic servo control cylinder (2) and big flow electro-hydraulic servo control cylinder (1) regulation and control, the similar cloth in parallel of two flow control valve structures
Put on body shell (C).The flow control combination valve can be carried out and stable output to low discharge and tiny flow quantity.By two groups
Flow control valve (one is big flow flow speed control valve, and one is low discharge flow speed control valve) with servo regulatory function is in parallel, passes through regulation
Servo control mechanism realizes Flow-rate adjustment to change the size of the effective orifice size of restriction in regulating valve, simultaneously because regulating valve is had
Some stability of flow functions, are stablized while Flow-rate adjustment is realized to output flow.
Patent 3：
Application number：CN201120048565.9, the applying date：2011.02.25, authorized announcement date：2011.09.07, it is a kind of
New combination valve, it is related to hydraulic component technical field.Fuel feed hole is offered on the left of its valve body, fuel feed hole top is set
There is spill port, valve body left side upper end, which is provided with the oil return branch hole communicated with spill port, fuel feed hole, is provided with first hole and second
Zhi Kong, first hole and oil return branch hole bottom are communicated, second hole successively with fluid-control one-way valve opening, connecting hole, speed governing mounting hole
Communicate, and second hole left end is shut by the second plug screw, is communicated at the top of fluid-control one-way valve opening with oil return branch bottom hole portion, fluid-control one-way
Valve opening is arranged on the left of valve body lower end, and connecting hole is arranged in the middle part of valve body lower end, and the middle part that speed governing mounting hole is arranged on valve body is right
Side.It overcomes deficiency of the prior art, and clever structure is reasonable, compact, maintaining convenience, its collection hydraulic control one-way valve,
Three kinds of functions of one-way throttle valve and overflow valve are integrated, and so as to effectively save space, save cost.
Through the above search, it has been found that above technical scheme does not influence the novelty of the present invention；And above patent text
Being mutually combined for part does not destroy creativeness of the invention.
The content of the invention
(1) technical problem solved
The technical problems to be solved by the invention there is provided it is a kind of have speed governing, commutation, the combination valve of relief function, with
Overcome the space very little for leaving hydraulic system in small-sized machine for, connect pressure-reducing valve, choke valve, peace in a certain way using oil pipe
Full valve, reversal valve realize that the scheme space-consuming of function is big, the problem of inapplicable to some small-sized machine systems.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：One kind has speed governing, commutation, overflow
The combination valve of function, including pressure-reducing valve, choke valve, safety valve, hand reversal valve and main valve body, the main valve body are body knot
Structure, which is provided with oil inlet and oil-out；
The pressure-reducing valve includes nut, stud, pressure-reducing valve valve pocket, decompression valve core, pressure-relief valve spring and pressure-reducing valve end cap,
The pressure-reducing valve valve pocket is sheath structure, which is provided with pressure-reducing valve oil inlet and pressure-reducing valve oil-out, the pressure-reducing valve valve pocket and
Pressure-reducing valve end cap is connected in being connected with decompression valve core in the inner chamber of main valve body, the pressure-reducing valve valve pocket；It is described to subtract
Pressure valve valve element one end is fixedly connected with stud, and the other end is fixedly connected with pressure-relief valve spring, the pressure-relief valve spring and pressure-reducing valve
End cap is connected, and secure fit is connected with nut on the stud；
The choke valve includes regulation handle, choke valve end cap, slide bar, throttle valve core, choke valve valve pocket and choke valve
Spring, the choke valve valve pocket is sheath structure, which is provided with choke valve oil inlet and choke valve oil-out, the choke valve valve
Set is connected in being connected with throttle valve core, the throttle valve core one in main valve intracoelomic cavity, the choke valve valve pocket
End is fixedly connected with slide bar, and the other end is fixedly connected with throttle valve spring, and slide bar and the choke valve end cap is connected, outside it
End is fixedly connected with regulation handle；
The safety valve includes safety-valve sleeve, safe valve core, safety valve spring and adjusting rod, the safety-valve sleeve
For sheath structure, safety valve screwed hole is internally provided with, safety valve oil inlet and safety valve oil-out, the safety is which is provided with
Adjusting rod is connected with by screw thread in valve screwed hole, the adjusting rod is fixedly connected with one end of safety valve spring, described
The other end of safety valve spring is fixedly connected with safe valve core；
The hand reversal valve includes handle, screw, change-over valve core, commutation valve spring and change valve, described
Change valve is hollow cavity structure, is connected in main valve body outer end, the change valve inner chamber, which is connected with, to be changed
To valve core, the change-over valve core is 3-position 4-way formula structure, and it is located at one end in change valve and is connected with reversal valve bullet
Spring, the other end is rotated with handle and is connected, and the handle is rotationally connected with change valve by screw, the change valve
Lower end is communicated with the reversal valve oil-out of hydraulic actuator；
The oil inlet of the main valve body is communicated with pressure-reducing valve oil inlet, the oil circuit that the pressure-reducing valve oil-out passes through main valve body
Choke valve oil inlet is communicated with, the choke valve oil-out is communicated with reversal valve oil inlet and safety valve oil inlet, the commutation
Valve oil-out is communicated with hydraulic actuator.
Further, described choke valve valve pocket one end is fixedly connected by choke valve end cap, and the other end passes through in main valve body
Chamber ledge structure is fixedly connected.
Further, the safety-valve sleeve interference fit is connected to choke valve endoporus.
Further, the regulation handle is connected with choke valve end cap by external screw thread, the choke valve end cap and slide bar
Sliding connection.
Further, it is provided with the slide bar and throttle valve core in groove, the groove and is provided with sealing ring, and by close
Seal is tightly connected with choke valve end cap and choke valve valve pocket respectively.
Further, the main valve body, which is provided with shoulder hole, the shoulder hole, is provided with sealing ring, and the main valve body passes through
Shoulder hole and sealing ring are tightly connected with pressure-reducing valve and choke valve；Groove is provided with the main valve body and safety valve mating connection,
Sealing ring is provided with the groove, the main valve body is tightly connected by groove and sealing ring with safety valve.
Further, the shape and size of the main valve intracoelomic cavity and pressure-reducing valve, choke valve, safety valve and hand-operated direction valve
Outer shape and size be adapted.
(3) beneficial effect
The invention provides it is a kind of with speed governing, commutation, relief function combination valve, by pressure-reducing valve, choke valve, safety valve
And hand reversal valve combines together, pressure-reducing valve, choke valve and safety valve use valve element, valve bush type structure, are easy to system
Installation is made, slide bar, choke valve end cap, regulation handle prevent fluid from revealing, with anti-using special construction design from inside to outside
Leakage, oil circuit simple, compact conformation, it is safe and reliable and easily manufactured the advantages of.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Fig. 2 is configuration schematic diagram of the invention；
Fig. 3 is cross-sectional view of the invention；
Fig. 4 is the cross-sectional view of main valve body of the present invention；
Fig. 5 is the partial enlarged drawing of choke valve of the present invention.
In figure：
1st, pressure-reducing valve, 1-1, nut, 1-2, stud, 1-3, pressure-reducing valve valve pocket, 1-4, decompression valve core, 1-5, pressure-reducing valve bullet
Spring, 1-6, pressure-reducing valve end cap；2nd, choke valve, 2-1, regulation handle, 2-2 choke valve end caps, 2-3, slide bar, 2-4, choke valve valve
Core, 2-5, choke valve valve pocket, 2-6, throttle valve spring；3rd, safety valve, 3-1, safety-valve sleeve, 3-2, safe valve core, 3-3,
Safety valve spring, 3-4, adjusting rod；4th, hand reversal valve, 4-1, handle, 4-2, screw, 4-3, change-over valve core, are changed 4-4
To valve spring, 4-5, change valve；5th, main valve body.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
With reference to shown in Fig. 1~5, its structural relation is：Including pressure-reducing valve 1, choke valve 2, safety valve 3, hand reversal valve 4
With main valve body 5, main valve body 5 is sheath structure, which is provided with oil inlet and oil-out；
Pressure-reducing valve 1 includes nut 1-1, stud 1-2, pressure-reducing valve valve pocket 1-3, decompression valve core 1-4, pressure-relief valve spring 1-5
With pressure-reducing valve end cap 1-6, pressure-reducing valve valve pocket 1-3 is sheath structure, which is provided with pressure-reducing valve oil inlet and pressure-reducing valve oil-out, subtracts
Pressure valve valve pocket 1-3 and pressure-reducing valve end cap 1-6, which are connected, to be subtracted in being connected with the inner chamber of main valve body 5, pressure-reducing valve valve pocket 1-3
Pressure valve valve element 1-4；Decompression valve core 1-4 one end is fixedly connected with stud 1-2, and the other end is fixedly connected with pressure-relief valve spring 1-5,
Pressure-relief valve spring 1-5 and pressure-reducing valve end cap 1-6 is connected, and secure fit is connected with nut 1-1 on stud 1-2；
Choke valve 2 includes regulation handle 2-1, choke valve end cap 2-2, slide bar 2-3, throttle valve core 2-4, choke valve valve pocket
2-5 and throttle valve spring 2-6, choke valve valve pocket 2-5 are sheath structure, which is provided with choke valve oil inlet and choke valve is fuel-displaced
Mouthful, choke valve valve pocket 2-5 is connected in being connected with throttle valve core 2-4 in the inner chamber of main valve body 5, choke valve valve pocket 2-5,
Throttle valve core 2-4 one end is fixedly connected with slide bar 2-3, and the other end is fixedly connected with throttle valve spring 2-6, slide bar 2-3 and section
Flow valve end cap 2-2 to be connected, its outer end is fixedly connected with regulation handle 2-1；
Safety valve 3 includes safety-valve sleeve 3-1, safe valve core 3-2, safety valve spring 3-3 and adjusting rod 3-4, safety
Valve valve pocket 3-1 is sheath structure, is internally provided with safety valve screwed hole, which is provided with safety valve oil inlet and safety valve is fuel-displaced
Mouthful, adjusting rod 3-4 is connected with by screw thread in safety valve screwed hole, adjusting rod 3-4 is fixedly connected with safety valve spring 3-3
One end, the safety valve spring 3-3 other end is fixedly connected with safe valve core 3-2；
Hand reversal valve 4 includes handle 4-1, screw 4-2, change-over valve core 4-3, commutation valve spring 4-4 and reversal valve
Valve body 4-5, change valve 4-5 are hollow cavity structure, are connected in the outer end of main valve body 5, change valve 4-5 matches somebody with somebody inner chamber
Conjunction is connected with change-over valve core 4-3, and change-over valve core 4-3 is 3-position 4-way formula structure, and it is located at one end in change valve 4-5
Commutation valve spring 4-4 is connected with, the other end is rotated with handle 4-1 and is connected, and handle 4-1 is rotationally connected with commutation by screw 4-2
On valve body 4-5, change valve 4-5 lower ends are communicated with the reversal valve oil-out of hydraulic actuator；
The oil inlet of main valve body 5 is communicated with pressure-reducing valve oil inlet, and pressure-reducing valve oil-out has by the oil communication of main valve body 5
Choke valve oil inlet, choke valve oil-out is communicated with reversal valve oil inlet and safety valve oil inlet, and reversal valve oil-out is communicated with
Hydraulic actuator；
Valve element, valve bush type structure are used between pressure-reducing valve 1, choke valve 2, safety valve 3 and main valve body 5, with compact conformation,
The advantages of occupying little space.
It is preferred that, choke valve valve pocket 2-5 one end is fixedly connected by choke valve end cap 2-2, and the other end passes through in main valve body 5
Chamber ledge structure is fixedly connected.
It is preferred that, safety-valve sleeve 3-1 interference fits are connected to choke valve endoporus.
It is preferred that, regulation handle 2-1 is connected with choke valve end cap 2-2 by external screw thread, choke valve end cap 2-2 and slide bar 2-
It is provided with 3 sliding connections, slide bar 2-3 and throttle valve core 2-4 in groove, groove and is provided with sealing ring, and passes through sealing ring
It is tightly connected respectively with choke valve end cap 2-2 and choke valve valve pocket 2-5；Slide bar 2-3, choke valve end cap 2-2, regulation handle 2-1
Special construction design from inside to outside, is effectively reduced fluid leakage.
It is preferred that, main valve body 5, which is provided with shoulder hole, shoulder hole, is provided with sealing ring, and main valve body 5 passes through shoulder hole and sealing
Circle is tightly connected with pressure-reducing valve 1 and choke valve 2；Main valve body 5 at the mating connection of safety valve 3 with being provided with groove, groove provided with close
Seal, main valve body 5 is tightly connected by groove and sealing ring with safety valve 3.
It is preferred that, shape and size and pressure-reducing valve 1, choke valve 2, safety valve 3 and the hand-operated direction valve 4 of the inner chamber of main valve body 5
Outer shape and size be adapted.
When specifically used, hydraulic oil is entered inside pressure-reducing valve 1 by the oil inlet on main valve body 5, pressure-reducing valve 1 and choke valve
2 flow speed control valves of the composition with throttle grverning function, the oil inlet of the oil-out of choke valve 2 connection hand reversal valve 4, hand is changed
Connect extraneous executive component to valve 4, when executive component pressure is excessive, more than safety valve 3 safe threshold when, safe valve core 3-
2 are opened, and hydraulic oil is flowed out by the oil-out on safety-valve sleeve 3-1, realizes the off-load of hydraulic oil.Meanwhile, change valve
4-5 lower end is communicated with the oil inlet and outlet of hydraulic actuator, by changing handle 4-1 position, adjustment hand commutation
The logical oil level of valve 4 is put, it is possible to achieve executive component enters the change in fuel-displaced direction.
By rotating regulation handle 2-1, slide bar 2-3 is promoted to move left and right, slide bar 2-3 acts on throttle valve core 2-4, enters
And throttle valve core 2-4 cross-sectional flow area is adjusted, realize the change of Extraction rate size.When choke valve oil-out pressure change
When, decompression valve core 1-4 is automatically adjusted, and new balance is reached in the presence of hydraulic coupling and spring force, makes to throttle by choke valve
The flow of mouth will not change because of the change of load, and then reach the purpose of voltage stabilizing.Pressure-reducing valve 1 coordinates with choke valve 2 to be had surely
Press speed governing effect.
To sum up, the embodiment of the present invention has the advantages that：Pressure-reducing valve, choke valve, safety valve and hand are changed
Combined together to valve, pressure-reducing valve, choke valve and safety valve use valve element, valve bush type structure, be easy to manufacture to install, slide bar,
Choke valve end cap, regulation handle prevent fluid from revealing using special construction design from inside to outside, simple with leakage-preventing, oil circuit
List, compact conformation, it is safe and reliable and easily manufactured the advantages of.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a kind of have speed governing, commutation, the combination valve of relief function, it is characterised in that：Including pressure-reducing valve (1), choke valve (2),
Safety valve (3), hand reversal valve (4) and main valve body (5), the main valve body (5) be sheath structure, which is provided with oil inlet and
Oil-out；
The pressure-reducing valve (1) includes nut (1-1), stud (1-2), pressure-reducing valve valve pocket (1-3), decompression valve core (1-4), decompression
Valve spring (1-5) and pressure-reducing valve end cap (1-6), the pressure-reducing valve valve pocket (1-3) are sheath structure, which is provided with pressure-reducing valve oil-feed
Mouth and pressure-reducing valve oil-out, the pressure-reducing valve valve pocket (1-3) and pressure-reducing valve end cap (1-6) are connected in the interior of main valve body (5)
Decompression valve core (1-4) is connected with chamber, the pressure-reducing valve valve pocket (1-3)；Described decompression valve core (1-4) one end is fixed
Stud (1-2) is connected with, the other end is fixedly connected with pressure-relief valve spring (1-5), the pressure-relief valve spring (1-5) and pressure-reducing valve end
Cover (1-6) to be connected, secure fit is connected with nut (1-1) on the stud (1-2)；
The choke valve (2) include regulation handle (2-1), choke valve end cap (2-2), slide bar (2-3), throttle valve core (2-4),
Choke valve valve pocket (2-5) and throttle valve spring (2-6), the choke valve valve pocket (2-5) are sheath structure, which is provided with choke valve
Oil inlet and choke valve oil-out, the choke valve valve pocket (2-5) are connected in main valve body (5) inner chamber, the choke valve valve
Throttle valve core (2-4) is connected with set (2-5), described throttle valve core (2-4) one end is fixedly connected with slide bar (2-
3), the other end is fixedly connected with throttle valve spring (2-6), and the slide bar (2-3) and choke valve end cap (2-2) are connected, institute
State slide bar (2-3) outer end and be fixedly connected with regulation handle (2-1)；
The safety valve (3) includes safety-valve sleeve (3-1), safe valve core (3-2), safety valve spring (3-3) and adjusting rod
(3-4), the safety-valve sleeve (3-1) is sheath structure, is internally provided with safety valve screwed hole, which is provided with safety valve oil-feed
Adjusting rod (3-4), the adjusting rod are connected with by screw thread in mouth and safety valve oil-out, the safety valve screwed hole
(3-4) is fixedly connected with safety valve spring (3-3) one end, and the other end of the safety valve spring (3-3) is fixedly connected with peace
Full valve valve element (3-2)；
The hand reversal valve (4) includes handle (4-1), screw (4-2), change-over valve core (4-3), commutation valve spring (4-
4) with change valve (4-5), the change valve (4-5) is hollow cavity structure, is connected in main valve body (5) outside
End, change valve (4-5) inner chamber is connected with change-over valve core (4-3), and the change-over valve core (4-3) is three
Tubing type structure, it is connected with commutation valve spring (4-4), the other end and handle (4-1) positioned at change valve (4-5) interior one end
Connection is rotated, the handle (4-1) is rotationally connected with change valve (4-5) by screw (4-2), the change valve
(4-5) lower end is communicated with the reversal valve oil-out of hydraulic actuator；
The oil inlet of the main valve body (5) is communicated with pressure-reducing valve oil inlet, the oil that the pressure-reducing valve oil-out passes through main valve body (5)
Road is communicated with choke valve oil inlet, and the choke valve oil-out is communicated with reversal valve oil inlet and safety valve oil inlet, described to change
Hydraulic actuator is communicated with to valve oil-out.
2. it is according to claim 1 a kind of with speed governing, commutation, the combination valve of relief function, it is characterised in that：The section
Stream valve valve pocket (2-5) one end can offset with choke valve end cap (2-2), and the other end can head into main valve body (5) inner chamber Step-edge Junction
Structure, is fixed choke valve valve pocket (2-5) position by the choke valve end cap (2-2), main valve body (5) inner chamber ledge structure.
3. it is according to claim 1 a kind of with speed governing, commutation, the combination valve of relief function, it is characterised in that：The peace
Full valve valve pocket (3-1) interference fit is connected to choke valve endoporus.
4. it is according to claim 1 a kind of with speed governing, commutation, the combination valve of relief function, it is characterised in that：It is described to adjust
Section handle (2-1) is connected with choke valve end cap (2-2) by external screw thread, and the choke valve end cap (2-2) is slided with slide bar (2-3)
It is connected.
5. it is according to claim 1 a kind of with speed governing, commutation, the combination valve of relief function, it is characterised in that：The cunning
Be provided with groove on bar (2-3) and throttle valve core (2-4), be provided with sealing ring in the groove, and by sealing ring respectively with section
Stream valve end cap (2-2) and choke valve valve pocket (2-5) are tightly connected.
6. it is according to claim 1 a kind of with speed governing, commutation, the combination valve of relief function, it is characterised in that：The master
Valve body (5) is provided with shoulder hole, is provided with sealing ring in the shoulder hole, the main valve body (5) by shoulder hole and sealing ring with
Pressure-reducing valve (1) and choke valve (2) are tightly connected；The main valve body (5) is described with being provided with groove at safety valve (3) mating connection
Sealing ring is provided with groove, the main valve body (5) is tightly connected by groove and sealing ring with safety valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842471.6A CN106382269B (en) | 2016-09-22 | 2016-09-22 | It is a kind of that there is speed governing, commutation, the combination valve of relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610842471.6A CN106382269B (en) | 2016-09-22 | 2016-09-22 | It is a kind of that there is speed governing, commutation, the combination valve of relief function |
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| Publication Number | Publication Date |
|---|---|
| CN106382269A CN106382269A (en) | 2017-02-08 |
| CN106382269B true CN106382269B (en) | 2017-10-20 |
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| CN201610842471.6A Active CN106382269B (en) | 2016-09-22 | 2016-09-22 | It is a kind of that there is speed governing, commutation, the combination valve of relief function |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194440B (en) * | 2017-11-14 | 2020-03-31 | 武汉船用机械有限责任公司 | Hydraulic speed regulating valve and hydraulic system |
| CN111255761B (en) * | 2020-01-19 | 2022-04-05 | 宁波宇洲液压设备有限公司 | Hydraulic control reversing pressure reducing valve |
| CN112762208A (en) * | 2020-12-31 | 2021-05-07 | 深圳市恒致云科技有限公司 | Constant flow throttling unloading multipurpose valve |
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|---|---|---|---|---|
| JPS607137B2 (en) * | 1977-04-08 | 1985-02-22 | カヤバ工業株式会社 | compound valve |
| JPS54115421A (en) * | 1978-02-28 | 1979-09-08 | Daikin Ind Ltd | Stack type compound valve |
| CN2052837U (en) * | 1989-06-10 | 1990-02-14 | 付如松 | Hydraulic valve |
| US7975715B2 (en) * | 2007-06-11 | 2011-07-12 | Bendix Commercial Vehicle Systems, Llc | Trailer spring brake valve |
| CN201096115Y (en) * | 2008-01-03 | 2008-08-06 | 常州乙顿液压气动机械制造有限公司 | Hydraulic combined valve |
| CN101900144B (en) * | 2010-07-22 | 2012-11-07 | 泸州众大科技液压件有限公司 | Small-sized drill pile-up valve |
| CN201963628U (en) * | 2011-02-25 | 2011-09-07 | 上海液力液压机电制造有限公司 | Novel combination valve |
| CN105526202B (en) * | 2015-12-04 | 2018-03-06 | 安徽理工大学 | A kind of overflow valve with pressure regulation and security function |
| CN205478626U (en) * | 2016-03-25 | 2016-08-17 | 安徽理工大学 | Novel combined valve |
-
2016
- 2016-09-22 CN CN201610842471.6A patent/CN106382269B/en active Active
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| CN106382269A (en) | 2017-02-08 |
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