CN208397412U - A kind of external pilot formula reversal valve - Google Patents
A kind of external pilot formula reversal valve Download PDFInfo
- Publication number
- CN208397412U CN208397412U CN201820596653.4U CN201820596653U CN208397412U CN 208397412 U CN208397412 U CN 208397412U CN 201820596653 U CN201820596653 U CN 201820596653U CN 208397412 U CN208397412 U CN 208397412U
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- pilot
- air inlet
- spool
- pilot hole
- valve body
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Abstract
The utility model relates to vacuum unit technical fields, refer in particular to a kind of external pilot formula reversal valve, including main valve body and pilot valve, the two sides of the main valve body are respectively arranged with air inlet and gas vent, spool and sliding cavity are provided in the main valve body, the air inlet and the gas vent are connected to the sliding cavity, the spool be slidably mounted on the sliding cavity and for control the air inlet and the gas vent be connected to and blocking；The pilot valve includes first guide cavity and pilot hole, and the pilot hole is connected to the first guide cavity, and the pilot hole is located at the same side of the main valve body with the air inlet.The utility model in pilot valve by being provided with pilot hole, and pilot hole and air inlet are located at the same side, pilot hole and air inlet are mounted on cylinder manifold simultaneously, installation is fixed to pilot hole without using additional installation part, to simplify the setting of gas circuit, assembly time is advantageously reduced.
Description
Technical field
The utility model relates to vacuum unit technical fields, refer in particular to a kind of external pilot formula reversal valve.
Background technique
With the significantly development of 3C industry, it is related to the continuous expansion of vacuum crawl technique application of legerity type product, mesh
The switching of vacuum is done in the switching of initial vacuum using the reversal valve of direct-acting valve or outer pilot control substantially, and due to needing batch raw
It produces, many stations need the product of primary crawl multiple groups, it is therefore desirable in the solenoid directional control valve of same station installation multiple groups.
But due to the position of the pilot hole of current pilot change over valve and air inlet spatially have it is biggish away from
From, thus using multiple solenoid directional control valves worked when, conventional mode be each solenoid directional control valve it is independently installed or
Person is installed using cylinder manifold, and when using cylinder manifold installation, current way is that first waveguide interface is independent enterprising in other component
Row is fixedly mounted, and it is many and diverse that this will lead to gas circuit, while increasing assembly time.
Summary of the invention
The utility model provides a kind of external pilot formula reversal valve for problem of the prior art, can simplify gas circuit, and
Reduce assembly time.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution:
A kind of external pilot formula reversal valve provided by the utility model, including main valve body and pilot valve, the main valve body
Two sides are respectively arranged with air inlet and gas vent, are provided with spool and sliding cavity in the main valve body, the air inlet and described
Gas vent is connected to the sliding cavity, and the spool is slidably mounted on the sliding cavity and for controlling the air inlet and institute
State the connection and blocking of gas vent；The pilot valve includes first guide cavity and pilot hole, and the pilot hole and the first guide cavity connect
Logical, the pilot hole is located at the same side of the main valve body with the air inlet.
Further, the pilot valve further includes pilot mechanism, and the pilot mechanism includes coil and iron core, the coil
It is surrounded on the iron core, elder generation's guide cavity is provided with bleeder port, and the iron core is for blocking the bleeder port.
Further, one end of the spool protrudes into the first guide cavity, and the other end of the spool is connected with return unit.
Further, one end of the spool is provided with the gear being connected to for sliding cavity described in block with the first guide cavity
Stop member.
Further, the pilot valve is additionally provided with safety vent, and the safety vent is connected to the pilot hole.
Further, the spool is provided with multiple gear gas parts.
The utility model has the beneficial effects that the utility model is in pilot valve by being provided with pilot hole, and pilot hole with
Air inlet is located at the same side, so that pilot hole is connected to the hole on cylinder manifold with air inlet, so that pilot hole and air inlet are only
It can be connected to gas source by cylinder manifold, without using additional component to be connected to pilot hole with gas source, to simplify
The setting of gas circuit, advantageously reduces assembly time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference: 1- main valve body, 2- pilot valve, 11- air inlet, 12- gas vent, 13-spools, 14- sliding cavity, 15-
Return unit, 16- stop part, 21- pilot mechanism, 22-first guide cavities, 23- pilot hole, 131- keep off gas part, 211- coil, 212- iron
Core, 221-bleeder ports.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made below with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.The utility model is carried out below in conjunction with attached drawing 1
Detailed description.
A kind of external pilot formula reversal valve provided by the utility model, including main valve body 1 and pilot valve 2, the main valve body 1
Two sides be respectively arranged with air inlet 11 and gas vent 12, be provided with spool 13 and sliding cavity 14 in the main valve body 1, it is described into
Stomata 11 and the gas vent 12 are connected to the sliding cavity 14, and the spool 13 is slidably mounted in the sliding cavity 14
And for control the air inlet 11 and the gas vent 12 be connected to and blocking；The pilot valve 2 includes pilot mechanism 21, elder generation
Guide cavity 22 and pilot hole 23, the pilot hole 23 are connected to the first guide cavity 22, the pilot hole 23 and the air inlet 11
Positioned at the same side of the main valve body 1.
The utility model by being provided with pilot hole 23 in pilot valve 2, and pilot hole 23 be located at air inlet 11 it is same
Side enables pilot hole 23 to be connected to simultaneously with the hole on cylinder manifold with air inlet 11, so that pilot hole 23 and air inlet 11 are only
It can be connected to gas source by cylinder manifold, pilot hole 23 is connected to gas source without using additional component, to simplify
The setting of gas circuit, reduces use cost, and advantageously reduce assembly time.Meanwhile when multiple the utility model are installed on
When on cylinder manifold, the additional component since no setting is required can also save installation space, reduce the cost of installation.
In the present embodiment, the pilot mechanism 21 includes coil 211 and iron core 212, and the coil 211 is surrounded on described
Iron core 212, elder generation's guide cavity 22 are provided with bleeder port 221, and the iron core 212 is for blocking the bleeder port 221.This is practical new
Type controls the opening and closing of bleeder port 221 by the way of electromagnetism, can guarantee the stability that bleeder port 221 is opened and closed, and electromagnetism control
The energy consumption of system is lower, safety is more preferable, can save the use cost of the utility model and increase the reliable of the utility model
Property.
In the present embodiment, one end of the spool 13 protrudes into the first guide cavity 22, and the other end of spool 13 is connected with
Return unit 15.When starting, spool 13 is in the state that air inlet 11 and gas vent 12 are blocked；It is needing to be connected to gas vent
12 and when air inlet 11, pilot mechanism 21 blocks bleeder port 221, is passed through gas toward first guide cavity 22 by pilot hole 23, so that
Air pressure increases in first guide cavity 22, thus promotion spool 13 is mobile, so that air inlet 11 and gas vent 12 are in the conductive state；
When pilot mechanism 21 retreats and bleeder port 221 is caused to be opened, the gas in first guide cavity 22 is discharged by bleeder port 221, therefore is made
Air pressure in first guide cavity 22 reduces, 15 control valve core 13 of return unit is pushed forward and is resetted so that gas vent 12 and into
Stomata 11 is no longer connected to by sliding cavity 14.The setting of return unit 15, so that the reset of spool 13 is relatively reliable, to guarantee to let out
When stomata 221 is opened, gas vent 12 reliably can be no longer connected to bleeder port 221.
Preferably, one end of the spool 13, which is provided with, is connected to the first guide cavity 22 for sliding cavity 14 described in block
Stop part 16, to guarantee that first guide cavity 22 will not be connected to sliding cavity 14, to ensure that the opening and closing energy of bleeder port 221
Enough on-off for reliably controlling gas vent 12 and air vent.
In the present embodiment, the pilot valve 2 is additionally provided with safety vent (being not marked in figure), the safety vent and the elder generation
Guide hole 23 is connected to, when the air pressure to be blocked in bleeder port 221 and in first guide cavity 22 reaches certain value, to distribute guide
The gas that hole 23 is flowed into, thus avoid in first guide cavity 22 air pressure excessive and caused by danger.
In the present embodiment, the spool 13 is provided with multiple gear gas parts 131, and gear 131 quantity of gas part is specially four,
And gas vent 12 and air inlet 11 it is each there are two.Keep off gas part 131 to bleeder port 221 open and spool 13 be in air inlet
11 and gas vent 12 block state when, to block sliding cavity 14, guarantee that the gas of air inlet 11 may not flow into gas vent
12；And be provided with multiple gear gas parts 131, then it is the reliability airtight in order to further ensure the utility model.
The above is only the utility model preferred embodiment, is not made in any form to the utility model
Limitation, although the utility model is disclosed as above with preferred embodiment, is not intended to limit the utility model, any to be familiar with sheet
Technical professional is not departing within the scope of technical solutions of the utility model, makes when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, but it is all without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification to the above embodiments, belongs to practical
In the range of new technique scheme.
Claims (6)
1. a kind of external pilot formula reversal valve, it is characterised in that: including main valve body and pilot valve, the two sides of the main valve body are distinguished
It is provided with air inlet and gas vent, spool and sliding cavity are provided in the main valve body, the air inlet and the gas vent are equal
It is connected to the sliding cavity, the spool is slidably mounted on the sliding cavity and for controlling the air inlet and the gas vent
Connection and blocking；The pilot valve includes first guide cavity and pilot hole, and the pilot hole is connected to the first guide cavity, the elder generation
Guide hole and the air inlet are located at the same side of the main valve body.
2. external pilot formula reversal valve according to claim 1, it is characterised in that: the pilot valve further includes guide's machine
Structure, the pilot mechanism include coil and iron core, and the coil is surrounded on the iron core, and elder generation's guide cavity is provided with bleeder port,
The iron core is for blocking the bleeder port.
3. external pilot formula reversal valve according to claim 1, it is characterised in that: one end of the spool protrudes into described
The other end of first guide cavity, the spool is connected with return unit.
4. external pilot formula reversal valve according to claim 3, it is characterised in that: one end of the spool, which is provided with, to be used for
The stop part that sliding cavity described in block is connected to the first guide cavity.
5. external pilot formula reversal valve according to claim 1, it is characterised in that: the pilot valve is additionally provided with safety
Hole, the safety vent are connected to the pilot hole.
6. external pilot formula reversal valve according to claim 1, it is characterised in that: the spool is provided with multiple gear gas
Part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596653.4U CN208397412U (en) | 2018-04-24 | 2018-04-24 | A kind of external pilot formula reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820596653.4U CN208397412U (en) | 2018-04-24 | 2018-04-24 | A kind of external pilot formula reversal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208397412U true CN208397412U (en) | 2019-01-18 |
Family
ID=65063156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820596653.4U Active CN208397412U (en) | 2018-04-24 | 2018-04-24 | A kind of external pilot formula reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208397412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159605A (en) * | 2019-05-31 | 2019-08-23 | 东莞市鸿诺自动化科技有限公司 | A kind of vacuum and air blowing combination valve |
-
2018
- 2018-04-24 CN CN201820596653.4U patent/CN208397412U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159605A (en) * | 2019-05-31 | 2019-08-23 | 东莞市鸿诺自动化科技有限公司 | A kind of vacuum and air blowing combination valve |
| CN110159605B (en) * | 2019-05-31 | 2024-03-15 | 东莞市鸿诺自动化科技有限公司 | Vacuum and blowing combined valve |
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