CN208605418U - A kind of pilot type electromagnetic switch valve - Google Patents
A kind of pilot type electromagnetic switch valve Download PDFInfo
- Publication number
- CN208605418U CN208605418U CN201821201850.8U CN201821201850U CN208605418U CN 208605418 U CN208605418 U CN 208605418U CN 201821201850 U CN201821201850 U CN 201821201850U CN 208605418 U CN208605418 U CN 208605418U
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- China
- Prior art keywords
- valve
- sap cavity
- electromagnetic switch
- spring
- iron core
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- 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 - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides a kind of pilot type electromagnetic switch valve, including main valve body and the guide valve blocks being arranged on main valve body, it is provided with admission chamber on main valve body, goes out sap cavity and main film, primary valve is provided between admission chamber and out sap cavity, is communicated with inlet on admission chamber；Liquid outlet is communicated on sap cavity out；The right side of main film is arranged in admission chamber and out sap cavity, and main film is covered at primary valve；Check valve assembly is provided in sap cavity out, by the way that check valve is arranged in sap cavity out, and then it avoids when importing and exporting reversal connection, pressure oil is entered by exit in the control unit of pilot type electromagnetic switch valve, and then avoid the damage of pilot type electromagnetic switch valve, the service life for extending the electromagnetic switch valve improves the reliability of entire hydraulic system.
Description
Technical field
The utility model relates to Hydraulic Field more particularly to a kind of pilot type electromagnetic switch valves.
Background technique
Pilot type electromagnetic switch valve is a kind of more commonly used solenoid valve in hydraulic system.Electromagnetic switch valve is in pipeline
On-off function rely primarily on the diaphragm on main valve plug to realize, the leakproofness between diaphragm and valve directly affects entire valve
Performance.
In the actual installation of hydraulic system, since the inlet and outlet of switch valve are close, it will usually by inlet and outlet misconnection,
Guide's electromagnetic switch valve is reversely installed, and when guide's electromagnetic switch valve is reversely installed can also open, if discovery is held not in time
The damage of pilot type electromagnetic switch valve is easily led to, entire hydraulic system fault is in turn resulted in.
Utility model content
Technical problem to be solved by the utility model is: existing pilot type electromagnetic switch valve during installation easily reversed accidentally dress and
It is not easy to be found, the pilot type electromagnetic switch valve is be easy to cause to damage, the utility model provides a kind of pilot type electromagnetic switch
Valve solves the above problems.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of pilot type electromagnetic switch valve, including
Main valve body and the guide valve blocks being arranged on the main valve body are provided with admission chamber on the main valve body, go out sap cavity and main film,
It is provided with primary valve between the admission chamber and the sap cavity out, is communicated with inlet on the admission chamber；On the sap cavity out
It is communicated with liquid outlet；The right side of said primary membrane piece is arranged in the admission chamber and the sap cavity out, and said primary membrane piece sealing cover closes
At the primary valve；It is provided with check valve assembly in the sap cavity out, the check valve assembly includes nonreturn valve core, check valve
Seat and the first spring are provided with check-valve port between the primary valve and the sap cavity out；The one-way valve seat is fixed at
It is described go out sap cavity right side, the right end of first spring is mounted on the one-way valve seat, the left end of first spring to
Nonreturn valve core described in left pushing tow and by the nonreturn valve core sealing contact at the check-valve port.
Further: the guide valve blocks include guide's valve opening, the dynamic iron core component being arranged in guide's valve opening, set
The plunger tube above the dynamic iron core component is set, the electromagnetic coil of dynamic iron core component periphery is set and is arranged described
The Packing spring of dynamic iron core component internal, the Packing spring are arranged between the dynamic iron core component and the plunger tube and will
The downward pushing tow of dynamic iron core component, guide's valve opening are connected to by leakage oil duct with the sap cavity out, the dynamic iron core group
The lower end of part is provided with guide's gasket that sealable lid closes the leakage oil duct upper end hole mouth.
Further: the left end of the main valve body is provided with valve deck, and is provided between said primary membrane piece and the valve deck
Two springs, the left end of the second spring are contacted with the valve deck, and the right end of the second spring is contacted with said primary membrane piece.
Further: being provided with strainer in the inlet.
The utility model has the beneficial effects that a kind of pilot type electromagnetic switch valve of the utility model in sap cavity out by setting
Check valve is set, and then is avoided when importing and exporting reversal connection, pressure oil is entered the control of pilot type electromagnetic switch valve by exit
In unit, and then the damage of pilot type electromagnetic switch valve is avoided, extend the service life of the electromagnetic switch valve, improved entire
The reliability of hydraulic system.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of appearance schematic diagram of pilot type electromagnetic switch valve of the utility model；
Fig. 2 is A-A cross-sectional view in Fig. 1.
1, main valve body in figure, 2, guide valve blocks, 3, admission chamber, 4, go out sap cavity, 5, main film, 6, primary valve, 7, inlet,
8, liquid outlet, 9, nonreturn valve core, 10, one-way valve seat, the 11, first spring, 12, check-valve port, 13, guide's valve opening, 14, dynamic iron core
Component, 15, plunger tube, 16, electromagnetic coil, 17, Packing spring, 18, leakage oil duct, 19, guide's gasket, 20, valve deck, 21,
Second spring.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.On the contrary, the embodiments of the present invention include falling into owning within the scope of the spirit and intension of attached claims
Variation, modification and equivalent.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axis
To ", " radial direction ", the orientation or positional relationship of the instructions such as " circumferential direction " be to be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for the description present invention and simplify description, rather than the device or element of indication or suggestion meaning there must be specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property.In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.In addition, in this reality
With in novel description, unless otherwise indicated, the meaning of " plurality " is two or more.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of preferred embodiments of the present invention includes other realization, wherein can not be by shown or discussion
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be by this
The embodiment person of ordinary skill in the field of utility model is understood.
As depicted in figs. 1 and 2, the utility model provides a kind of pilot type electromagnetic switch valve, including main valve body 1 and setting
Guide valve blocks 2 on the main valve body 1 are provided with admission chamber 3 on the main valve body 1, go out sap cavity 4 and main film 5, it is described into
It is provided with primary valve 6 between sap cavity 3 and the sap cavity 4 out, is communicated with inlet 7 on the admission chamber 3；On the sap cavity 4 out
It is communicated with liquid outlet 8；The right side of said primary membrane piece 5 is arranged in the admission chamber 3 and the sap cavity 4 out, and said primary membrane piece 5 seals
Lid closes at the primary valve 6；It is provided with check valve assembly in the sap cavity 4 out, the check valve assembly includes nonreturn valve core
9, one-way valve seat 10 and the first spring 11 are provided with check-valve port 12 between the primary valve 6 and the sap cavity 4 out；The list
The right side of the sap cavity 4 out is fixed to valve seat 10, the right end of first spring 11 is mounted on the one-way valve seat 10
On, the left end of first spring 11 to the left nonreturn valve core 9 described in pushing tow and by 9 sealing contact of nonreturn valve core in the list
To at valve port 12.
Working media is flowed into admission chamber 3 by inlet 7, and working media enters to after admission chamber 3 and first in the prior art
The working principle of conduction electromagnetic switch valve is similar, and when electromagnetic switch valve is closed, guide valve blocks 2 are in close state, and work is situated between
Matter by the damping hole on main film 5 enter guide valve blocks 2 inner cavity and the left side of main film 5 formed pressure with balance into
Pressure of the working media of sap cavity 3 to the right side of main film 5.
When electromagnetic switch valve is opened, guide valve blocks 2 are in the open state, and the inner cavity of guide valve blocks 2 connects with sap cavity 4 out
Logical, the rapid pressure drop in 5 left side of main film, the left and right sides of main film 5 forms pressure difference, by the work on 5 right side of main film
The pressure of medium pushes to the right nonreturn valve core 9 after main film 5, working media can be pushed to flow through primary valve 6 by admission chamber 3 to the left
It opens check-valve port 12 to enter out in sap cavity 4, and electromagnetic switch valve is finally flowed out by liquid outlet 8.
Check valve assembly is set in sap cavity 4 out, only permission medium is entered by inlet 7 and liquid outlet 8 is discharged, this
The function of integrated form, ensure that electromagnetic switch valve be reversed accidentally fill when can self-protection, prevent working media by liquid outlet 8
Into, will not be opened by operator, failure rate can be substantially reduced in this way, effectively increase electromagnetic switch valve reliability and
Durability.
The guide valve blocks 2 include guide's valve opening 13, the dynamic iron core component 14 being arranged in guide's valve opening 13, setting
Plunger tube 15 above the dynamic iron core component 14, the electromagnetic coil 16 that 14 periphery of dynamic iron core component is set and setting
Packing spring 17 inside the dynamic iron core component 14, the Packing spring 17 setting is in the dynamic iron core component 14 and described
Between plunger tube 15 and by the downward pushing tow of the dynamic iron core component 14, guide's valve opening 13 by leakage oil duct 18 and it is described go out
Sap cavity 4 is connected to, and the lower end of the dynamic iron core component 14 is provided with the guide that sealable lid closes the leakage 18 upper end aperture of oil duct
Gasket 19.
When electromagnetic switch valve is closed, without electric current, work of the dynamic iron core component 14 in Packing spring 17 in electromagnetic coil 16
Leakage 18 upper end aperture of oil duct is closed to lower sealing cover with lower, guide's gasket 19 can be under the jacking force effect of Packing spring 17
It is closely fitted in leakage 18 upper end aperture of oil duct, ensure that excellent leakproofness, and due to there is Packing spring 17 to be pressed
The adaptivity of clamp force compensation and guide's gasket 19, requirement of this sealing to working media cleannes substantially reduce, first
Pilot valve body 2 has resistance tocrocking.
When needing electromagnetic switch valve to open, it is only necessary to by circuit current in electromagnetic coil 16, can move up dynamic
Core assembly 14 can easily realize the state conversion of the opening and closing of entire electromagnetic switch valve in this way.
The left end of the main valve body 1 is provided with valve deck 20, and the second bullet is provided between said primary membrane piece 5 and the valve deck 20
Spring 21, the left end of the second spring 21 are contacted with the valve deck 20, and right end and the said primary membrane piece 5 of the second spring 21 connect
Touching.
Second spring 21, which can play the role of compensating when the lid of main film 5 closes primary valve 6, seals normal pressure, there is auxiliary seal
Function, improve the sealing performance of main film 5, avoid the leakage between admission chamber 3 and out sap cavity 4.
It is provided with strainer in the inlet 7, strainer is arranged in inlet 7 can guarantee to enter in electromagnetic switch valve
The cleannes of working media prevent pollutant from causing valve inner element clamping stagnation, and extend entire electromagnetic switch valve uses the longevity
Life, improves the reliability used.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of the term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technical idea completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to its technology is determined according to scope of the claims
Property range.
Claims (4)
1. a kind of pilot type electromagnetic switch valve, the guide valve blocks (2) including main valve body (1) and setting on the main valve body (1),
It is provided with admission chamber (3) on the main valve body (1), goes out sap cavity (4) and main film (5), the admission chamber (3) and the sap cavity out
(4) it is provided between primary valve (6), is communicated with inlet (7) on the admission chamber (3)；It is communicated with out on sap cavity (4) out
Liquid mouth (8)；The admission chamber (3) and described sap cavity (4) out are arranged on the right side of said primary membrane piece (5), and said primary membrane piece (5) is close
Capping is closed at the primary valve (6)；It is characterized by: being provided with check valve assembly, the check valve in sap cavity (4) out
Component includes nonreturn valve core (9), one-way valve seat (10) and the first spring (11), the primary valve (6) and it is described go out sap cavity (4) it
Between be provided with check-valve port (12)；The one-way valve seat (10) is fixed at the right side of sap cavity (4) out, first bullet
The right end of spring (11) is mounted on the one-way valve seat (10), the left end of first spring (11) check valve described in pushing tow to the left
Core (9) and by the nonreturn valve core (9) sealing contact at the check-valve port (12).
2. a kind of pilot type electromagnetic switch valve as described in claim 1, it is characterised in that: the guide valve blocks (2) include first
Pilot valve hole (13), is arranged in the dynamic iron core component (14) the dynamic iron core component (14) being arranged in guide's valve opening (13)
The plunger tube (15) of top is arranged in the electromagnetic coil (16) of dynamic iron core component (14) periphery and setting in the dynamic iron core
The internal Packing spring (17) of component (14), Packing spring (17) setting is in the dynamic iron core component (14) and described every magnetic
It manages between (15) and by the downward pushing tow of the dynamic iron core component (14), guide's valve opening (13) passes through leakage oil duct (18) and institute
Sap cavity (4) connection is stated out, the lower end of the dynamic iron core component (14) is provided with sealable lid and closes leakage oil duct (18) upper end
Guide's gasket (19) in aperture.
3. a kind of pilot type electromagnetic switch valve as claimed in claim 2, it is characterised in that: the left end of the main valve body (1) is set
It is equipped with valve deck (20), second spring (21), the second spring is provided between said primary membrane piece (5) and the valve deck (20)
(21) left end is contacted with the valve deck (20), and the right end of the second spring (21) is contacted with said primary membrane piece (5).
4. a kind of pilot type electromagnetic switch valve as claimed in claim 3, it is characterised in that: be provided in the inlet (7)
Strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201850.8U CN208605418U (en) | 2018-07-26 | 2018-07-26 | A kind of pilot type electromagnetic switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201850.8U CN208605418U (en) | 2018-07-26 | 2018-07-26 | A kind of pilot type electromagnetic switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208605418U true CN208605418U (en) | 2019-03-15 |
Family
ID=65671376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821201850.8U Expired - Fee Related CN208605418U (en) | 2018-07-26 | 2018-07-26 | A kind of pilot type electromagnetic switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208605418U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757617A (en) * | 2018-07-26 | 2018-11-06 | 无锡市华科力士水液压有限公司 | A kind of pilot type electromagnetic switch valve |
| CN110043675A (en) * | 2019-05-09 | 2019-07-23 | 河南护航实业股份有限公司 | A kind of pilot-type solenoid valve |
| CN112797221A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot axial flow type safety valve |
-
2018
- 2018-07-26 CN CN201821201850.8U patent/CN208605418U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757617A (en) * | 2018-07-26 | 2018-11-06 | 无锡市华科力士水液压有限公司 | A kind of pilot type electromagnetic switch valve |
| CN110043675A (en) * | 2019-05-09 | 2019-07-23 | 河南护航实业股份有限公司 | A kind of pilot-type solenoid valve |
| CN112797221A (en) * | 2021-03-01 | 2021-05-14 | 四川长仪油气集输设备股份有限公司 | Pilot axial flow type safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190315 Termination date: 20200726 |