CN208381447U - A kind of bi-bit bi-pass normally closed solenoid valve with buffer structure - Google Patents
A kind of bi-bit bi-pass normally closed solenoid valve with buffer structure Download PDFInfo
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- CN208381447U CN208381447U CN201820918204.7U CN201820918204U CN208381447U CN 208381447 U CN208381447 U CN 208381447U CN 201820918204 U CN201820918204 U CN 201820918204U CN 208381447 U CN208381447 U CN 208381447U
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- normally closed
- solenoid valve
- pilot valve
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Abstract
The utility model relates to a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure.The front end of dynamic iron core is equipped with " convex " font groove, described valve rod one end is " T " the font connector that can be installed in above-mentioned groove, and connector can be moved forward and backward 1mm-3mm in groove, its other end is the diameter mounting blocks bigger than pilot valve diameter, buffer spring is set in the pilot valve, described buffer spring one end offsets with spool wall, and the side wall of the other end and mounting blocks offsets.The shell of the bi-bit bi-pass normally closed solenoid valve with buffer structure is using threaded connection, convenient disassembly, removable connection is used between valve rod and pilot valve, convenient for being individually replaced delicate pilot valve, and buffer spring is equipped at the top of pilot valve, certain buffer function is capable of providing when pilot valve return, the loss of pilot valve is reduced, solenoid valve service life is extended, is had compact-sized, it is low in cost, the advantages of being quick on the draw.
Description
Technical field
The utility model relates to solenoid valves, and in particular to a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure.
Background technique
Solenoid valve (Electromagnetic valve) is electromagnetically controlled industrial equipment, is for controlling fluid
Automatic foundamental element belongs to actuator, however it is not limited to hydraulic, pneumatic.In industrial control system adjust medium direction,
Flow, speed and other parameters.Solenoid valve can cooperate different circuits to realize expected control, and the precision that controls and
Flexibility can guarantee.There are many kinds of solenoid valves, and different solenoid valves plays a role in the different location of control system, most often
It is check valve, safety valve, directional control valve, speed-regulating valve etc..
Electromagnetic valve structure is complicated in the prior art, and shell is non-dismountable or disassembly is very inconvenient, and valve rod is integrated
Structure, for solenoid valve after long-term work, valve stem top is easy to appear abrasion, to the problem of leakage occur, results in the need for replacing
Entire valve rod abandons entire solenoid valve, to cause unnecessary waste, in addition the linkage mechanism of valve rod does not have buffer capacity
Power is closed every time, and under the action of elastic force, top and the opening of spool bump against valve rod, and not only noise is big, but also accelerates loss
Valve stem top influences solenoid valve service life.
Utility model content
In order to overcome the shortcomings of background technique, the utility model provides a kind of normally closed electricity of the bi-bit bi-pass with buffer structure
Magnet valve.
The technical scheme adopted by the utility model is a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure, packet
Include the flux sleeve with cavity；Dynamic iron core in ceramic jacket is set；The coil of ceramic jacket periphery is set；It is connect with flux sleeve
Valve pocket；It is connected to the valve rod of dynamic iron core front end；It is connected to the pilot valve of valve rod front end；Spool in valve pocket, institute are set
The valve pocket and flux sleeve stated are locked by attaching nut, and the front end of the dynamic iron core is equipped with " convex " font groove, the valve rod
One end is " T " the font connector that can be installed in above-mentioned groove, and connector can be moved forward and backward 1mm-3mm in groove,
Its other end is the diameter mounting blocks bigger than pilot valve diameter, is set with buffer spring in the pilot valve, described
Buffer spring one end offsets with spool wall, and the side wall of the other end and mounting blocks offsets.
It further, further include plug and filter screen, the plug is cylindrical structure, and front end has diameter lesser
Dip section, rear end are thread segment, and the dip section protrudes into the cavity of flux sleeve rear end, and locking is cased on the end of thread
Nut.
Further, the dip section front end face is equipped with the trapezoidal cavity being recessed inwardly, and the dynamic iron core rear end is
The boss to match with above-mentioned trapezoidal cavity, dynamic iron core rear end are equipped with spring cavity, are equipped with return spring, return bullet in spring cavity
Spring one end is connected with trapezoidal cavity bottom wall, and the other end is connected with spring cavity bottom wall.
Further, the distance that the connector can be moved forward and backward in groove is 2mm.
Further, the mounting blocks and valve-stem integrated form, and the pilot valve is connected by key with mounting blocks.
Further, the valve pocket top is equipped with medium entrance, and the two sides of valve pocket are equipped with media outlet, the filtering
Net is arranged on media outlet.
The beneficial effects of the utility model are: due to taking above-mentioned technical proposal, it should be with the bi-bit bi-pass of buffer structure
The shell of normally closed solenoid valve is using being threadedly coupled, and convenient disassembly uses removable connection between valve rod and pilot valve, convenient for single
Delicate pilot valve is solely replaced, and is equipped with buffer spring at the top of pilot valve, can be mentioned when pilot valve return
For certain buffer function, reduce the loss of pilot valve, extend solenoid valve service life, have it is compact-sized, it is low in cost,
The advantages of being quick on the draw.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1, cavity in figure；2, flux sleeve；3, dynamic iron core；4, coil；5, valve pocket；6, valve rod；7, pilot valve；8, spool；
9, attaching nut；10, groove；11, connector；12, mounting blocks；13, buffer spring；14, plug；15, filter screen；16, it protrudes into
Section；17, thread segment；18, locking nut；19, trapezoidal cavity；20, boss；21, spring cavity；22, return spring；23, medium into
Mouthful；24, media outlet.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing.
As shown in Figure 1, a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure, including having the flux sleeve of empty 1 chamber
2；Dynamic iron core 3 in ceramic jacket 2 is set；The coil 4 of 2 periphery of ceramic jacket is set；The valve pocket 5 being connect with flux sleeve 2；Even
Connect the valve rod 6 in 3 front end of dynamic iron core；It is connected to the pilot valve 7 of 6 front end of valve rod；Spool 8 in valve pocket 5 is set, it is described
Valve pocket 5 is locked with flux sleeve 2 by attaching nut 9, and the front end of the dynamic iron core 3 is equipped with " convex " font groove 10, the valve
Before and after 6 one end of bar is " T " the font connector 11 that can be installed in above-mentioned groove 10, and connector 11 can be in groove 10
Mobile 1mm-3mm, the other end are the diameter mounting blocks 12 bigger than 7 diameter of pilot valve, are set in the pilot valve 7
There is buffer spring 13, described 13 one end of buffer spring offsets with 8 wall of spool, and the side wall of the other end and mounting blocks 12 offsets.It is dynamic
There are 1mm-3mm buffer distances for the junction of iron core 3 and valve rod 6, cooperate the buffer spring 13 in pilot valve 7, in power-off electric
During magnet valve is closed, buffer function is provided for the closure of pilot valve, noise is reduced, reduces the loss in pilot valve,
Improve the service life of solenoid valve.
It in the present invention, further include plug 14 and filter screen 15, the plug 14 is cylindrical structure, front end
With the lesser dip section 16 of diameter, rear end is thread segment 17, and the dip section 16 protrudes into the cavity 1 of 2 rear end of flux sleeve,
Locking nut 18 is cased on the end of thread 17；16 front end face of dip section is equipped with the trapezoidal cavity 19 being recessed inwardly,
3 rear end of dynamic iron core is the boss 20 to match with above-mentioned trapezoidal cavity 19, and 3 rear end of dynamic iron core is equipped with spring cavity 21,
Return spring 22 is equipped in spring cavity 21,22 one end of return spring is connected with trapezoidal 19 bottom wall of cavity, the other end and spring cavity 21
Bottom wall is connected；The distance that the connector 11 can be moved forward and backward in groove 10 is 2mm.
In the present invention, the mounting blocks 12 and valve rod 6 are integrally formed, the pilot valve 7 and mounting blocks
12 are connected by key, and integrally formed mounting blocks 12 have better mechanical strength with valve rod 6, convenient for batch production, in addition first
Guide valve core 7 is removable connection, is individually replaced convenient for the later period；The valve pocket top is equipped with medium entrance 23, the two sides of valve pocket
Equipped with media outlet 24, the filter screen 15 is arranged on media outlet 24.
The working principle of the utility model are as follows: in the event of a power failure, solenoid valve is in normally off.Upon power-up,
Under the action of coil, band ovable valve stem is moved to the left dynamic iron core, to keep solenoid valve in the open state.
This with buffer structure bi-bit bi-pass normally closed solenoid valve shell using be threadedly coupled, convenient disassembly, valve rod with
Removable connection is used between pilot valve, is equipped with convenient for being individually replaced delicate pilot valve, and at the top of pilot valve slow
Spring is rushed, is capable of providing certain buffer function when pilot valve return, reduces the loss of pilot valve, extends electromagnetism
Valve service life, have it is compact-sized, it is low in cost, the advantages of being quick on the draw.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept will all be included in this specially
In sharp scope of patent protection.
Claims (6)
1. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure, including the flux sleeve with cavity；It is arranged in ceramic jacket
Interior dynamic iron core；The coil of ceramic jacket periphery is set；The valve pocket being connect with flux sleeve；It is connected to the valve rod of dynamic iron core front end；
It is connected to the pilot valve of valve rod front end；The spool in valve pocket, the valve pocket and flux sleeve is arranged in lock by attaching nut
Tightly, it is characterised in that: the front end of the dynamic iron core is equipped with " convex " font groove, and described valve rod one end is above-mentioned for that can be installed on
" T " font connector in groove, and connector can be moved forward and backward 1mm-3mm in groove, the other end is that diameter compares guide
Valve core diameter's big mounting blocks are set with buffer spring, described buffer spring one end and spool wall in the pilot valve
It offsets, the side wall of the other end and mounting blocks offsets.
2. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure according to claim 1, it is characterised in that: also wrap
Plug and filter screen are included, the plug is cylindrical structure, and front end has the lesser dip section of diameter, and rear end is thread segment,
The dip section protrudes into the cavity of flux sleeve rear end, is cased with locking nut on the end of thread.
3. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure according to claim 2, it is characterised in that: described
Dip section front end face be equipped with the trapezoidal cavity that is recessed inwardly, the dynamic iron core rear end matches with above-mentioned trapezoidal cavity
Boss, dynamic iron core rear end are equipped with spring cavity, are equipped with return spring, return spring one end and trapezoidal cavity bottom wall phase in spring cavity
Even, the other end is connected with spring cavity bottom wall, and the elastic force of the return spring to the right is greater than the elastic force of buffer spring to the left.
4. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure according to claim 1-3, feature
Be: the distance that the connector can be moved forward and backward in groove is 2mm.
5. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure according to claim 4, it is characterised in that: described
Mounting blocks and valve-stem integrated form, the pilot valve is connected by key with mounting blocks.
6. a kind of bi-bit bi-pass normally closed solenoid valve with buffer structure according to claim 2, it is characterised in that: described
Valve pocket top be equipped with medium entrance, the two sides of valve pocket are equipped with media outlet, and the filter screen is arranged on media outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918204.7U CN208381447U (en) | 2018-06-13 | 2018-06-13 | A kind of bi-bit bi-pass normally closed solenoid valve with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820918204.7U CN208381447U (en) | 2018-06-13 | 2018-06-13 | A kind of bi-bit bi-pass normally closed solenoid valve with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208381447U true CN208381447U (en) | 2019-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820918204.7U Active CN208381447U (en) | 2018-06-13 | 2018-06-13 | A kind of bi-bit bi-pass normally closed solenoid valve with buffer structure |
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| CN (1) | CN208381447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251021A (en) * | 2021-06-01 | 2021-08-13 | 安徽理工大学 | Two-position reversing valve with pilot function |
-
2018
- 2018-06-13 CN CN201820918204.7U patent/CN208381447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251021A (en) * | 2021-06-01 | 2021-08-13 | 安徽理工大学 | Two-position reversing valve with pilot function |
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