CN209524101U - A kind of vacuum generator pilot-operated type switching device - Google Patents
A kind of vacuum generator pilot-operated type switching device Download PDFInfo
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- CN209524101U CN209524101U CN201920252748.9U CN201920252748U CN209524101U CN 209524101 U CN209524101 U CN 209524101U CN 201920252748 U CN201920252748 U CN 201920252748U CN 209524101 U CN209524101 U CN 209524101U
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- guide
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- pilot
- vacuum generator
- shell
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Abstract
The utility model discloses a kind of vacuum generator pilot-operated type switching devices, it include shell, vacuum generator working chamber A is provided in shell, air feed interface P is provided on shell, case top lid conjunction has guide's sealing cover, gas control interface P1 is provided on guide's sealing cover, guide valve blocks and guide's valve rod are provided in shell, guide's valve rod can be axially movably assemblied in guide valve blocks, the front of guide's valve rod is fixed with sealing valve port pad, the sealing valve port pad is matched with the intracorporal valve port H of pilot valve, pilot valve balancing spring is provided between the rear portion and guide's sealing cover of guide's valve rod；Air feed interface P is communicated with the pilot valve working chamber E in the middle part of guide's valve rod, and gas control interface P1 is communicated with the first guide cavity F at guide valve blocks rear portion.Utility model has the advantages that compact-sized, small in size, low energy consumption.
Description
Technical field
The utility model relates to vacuum generator manufacturing technology fields, and especially a kind of vacuum generator is switched with pilot-operated type
Device.
Background technique
Vacuum generator be exactly generated using positive pressure gas source negative pressure one kind is novel, efficient, cleaning, economical, small-sized true
Empty component, this makes in the place for having compressed air, or needs the place of positive/negative-pressure to obtain simultaneously in a pneumatic system
Negative pressure becomes very easy and conveniently.Vacuum generator is widely used in machinery, electronics, packaging, printing, modeling in industrial automation
The fields such as material and robot.
Common vacuum generator control valve is greater than 3 times of vacuum generator convergent-divergent channel of direct drive type electro using valve port latus rectum
Magnet valve generates the function of closing with vacuum to reach control vacuum.But that there are volumes is big, power consumption is big, frequency for such solenoid valve
The low, bad phenomenons such as noise is big, therefore its structure need to be further improved.
Summary of the invention
It is small in size for the current state of the art, the technical problem to be solved by the utility model is to provide compact-sized,
A kind of vacuum generator pilot-operated type switching device that low energy consumption.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
A kind of vacuum generator pilot-operated type switching device, includes shell, and vacuum generator work is provided in shell
Chamber A, air feed interface P is provided on shell, and case top lid conjunction has guide's sealing cover, is provided with gas control interface on guide's sealing cover
P1 is provided with guide valve blocks and guide's valve rod in shell, and guide's valve rod can be axially movably assemblied in guide valve blocks, guide
The front of valve rod is fixed with sealing valve port pad, which matches with the intracorporal valve port H of pilot valve, after guide's valve rod
Pilot valve balancing spring is provided between portion and guide's sealing cover；The air feed interface P and pilot valve working chamber E in the middle part of guide's valve rod
It communicates, gas control interface P1 is communicated with the first guide cavity F at guide valve blocks rear portion.
The technical measures of optimization further include:
The rear portion of above-mentioned guide's valve rod is provided with position limiting convex ring, which is provided with movable sealing circle.
The rear portion of above-mentioned guide's valve rod is provided with spring assembly cavity, and pilot valve balancing spring is assemblied in the spring assembly cavity
It is interior.
Spring inserting column is provided on above-mentioned guide's sealing cover, one end of pilot valve balancing spring is placed on the spring inserting column
Outside.
The front of sealing valve port pad is provided with aluminium briquet on above-mentioned guide's valve rod.
It is fixed in the front of aluminium briquet with circlip on above-mentioned guide's valve rod.
O-ring is provided between above-mentioned guide valve blocks and the shell.
The periphery of above-mentioned guide valve blocks offers O-ring slot, and O-ring is in corresponding O-ring slot.
First guide cavity gasket is provided between above-mentioned shell and guide's sealing cover.
A kind of vacuum generator pilot-operated type switching device of the utility model, it is compact-sized, it is small in size, in shell
Guide valve blocks and guide's valve rod are set, the movement of guide's valve rod is controlled by gas control interface P1, valve port H is opened and closed to realize
Control, easy to operate, low energy consumption.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view when the utility model valve port H is closed；
Fig. 2 is the portion I enlarged drawing in Fig. 1；
Fig. 3 is schematic cross-sectional view when the utility model valve port H is opened；
Fig. 4 is II enlarged drawing in Fig. 3；
Fig. 5 is the decomposition diagram of the utility model；
Fig. 6 is the pneumatic schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
It is as shown in Figures 1 to 6 the structural schematic diagram of the utility model,
Appended drawing reference therein are as follows: vacuum generator working chamber A, air feed interface P, gas control interface P1, valve port H, pilot valve
Working chamber E, first guide cavity F, shell 1, guide's sealing cover 2, spring inserting column 21, guide valve blocks 3, O-ring slot 3a, guide's valve rod 4, bullet
Spring assembly cavity 4a, position limiting convex ring 41, movable sealing circle 42, sealing valve port pad 5, aluminium briquet 51, circlip 52, pilot valve balancing spring
6, O-ring 7, first guide cavity gasket 8.
As shown in Figures 1 to 6,
A kind of vacuum generator pilot-operated type switching device, includes shell 1, vacuum generator work is provided in shell 1
Make chamber A, air feed interface P is provided on shell 1, guide's sealing cover 2 is covered on shell 1, is provided with gas on guide's sealing cover 2
Interface P1 is controlled, is provided with guide valve blocks 3 and guide's valve rod 4 in shell 1, guide's valve rod 4 can axially movably be assemblied in guide
In valve body 3, the front of guide's valve rod 4 is fixed with sealing valve port pad 5, the sealing valve port pad 5 and the valve port H phase in guide valve blocks 3
Cooperation, is provided with pilot valve balancing spring 6 between the rear portion and guide's sealing cover 2 of guide's valve rod 4；Air feed interface P and pilot valve
The pilot valve working chamber E at 4 middle part of bar is communicated, and gas control interface P1 is communicated with the first guide cavity F at 3 rear portion of guide valve blocks.
In embodiment, the rear portion of guide's valve rod 4 is provided with position limiting convex ring 41, and it is close which is provided with activity
Seal 42.Position limiting convex ring 41 can limit the axial moving displacement of guide's valve rod 4.
In embodiment, the rear portion of guide's valve rod 4 is provided with spring assembly cavity 4a, and pilot valve balancing spring 6 is assemblied in the bullet
In spring assembly cavity 4a.
In embodiment, spring inserting column 21 is provided on guide's sealing cover 2, one end of pilot valve balancing spring 6 is placed on described
Outside spring inserting column 21.
The setting of spring assembly cavity 4a and spring inserting column 21, facilitate the assembly of pilot valve balancing spring 6, while also can
Keep structure more compact, keeps the overall volume of vacuum generator smaller.
In embodiment, the front of sealing valve port pad 5 is provided with aluminium briquet 51 on guide's valve rod 4.
It is fixed with circlip 52 in the front of aluminium briquet 51 on guide's valve rod 4 in embodiment.
In embodiment, O-ring 7 is provided between guide valve blocks 3 and the shell 1.
In embodiment, the periphery of guide valve blocks 3 offers O-ring slot 3a, and O-ring 7 is embedded at corresponding O-ring slot 3a
It is interior.
The setting of O-ring slot 3a facilitates the assembly of O-ring 7, O-shaped when avoiding guide valve blocks 3 and being assembled in shell 1
The position of circle 7 occurs mobile and influences sealing effect.
In embodiment, first guide cavity gasket 8 is provided between shell 1 and guide's sealing cover 2.
Working principle:
When air feed interface P, gas control interface P1 do not connect compressed gas, guide's valve rod 4 is made in 6 elastic force of pilot valve balancing spring
It is moved to the left under, valve port H is opened, and pilot valve working chamber E is communicated with vacuum generator working chamber A, this is original state.
When air feed interface P connects compressed gas, the air pressure in pilot valve working chamber E rises, and guide's valve rod 4 is made by air pressure
It is moved right with compression pilot valve balancing spring 6, until valve port H is closed, pilot valve ends.
When gas control interface P1 introduces compressed gas, the air pressure in first guide cavity F rises, and air pressure and guide in first guide cavity F
Pressure balance in valve working chamber E is offset, and guide's valve rod 4 is moved to the left under the effect of 6 elastic force of pilot valve balancing spring, valve port H
It opens, pilot valve working chamber E is communicated with vacuum generator working chamber A, and compressed gas reaches in vacuum generator working chamber A.
When the compressed gas that revocation gas control interface P1 is introduced, first guide cavity F and pilot valve working chamber E imbalance of pressure (first guide cavity F
Interior air pressure is greater than air pressure in pilot valve working chamber E), the compression compression pilot valve balancing spring 6 of guide's valve rod 4 moves right, valve port H
Closure.
This vacuum generator can realize the unlatching or closure of valve port H, behaviour by the control of gas control interface P1 gas source
Make simply, it is compact-sized, it is small in size.
The most preferred embodiment of the utility model has illustrated, the various change or remodeling made by those of ordinary skill in the art
All without departing from the scope of the utility model.
Claims (9)
1. a kind of vacuum generator pilot-operated type switching device includes shell (1), is provided with vacuum in the shell (1)
Generator working chamber A, the shell are provided with air feed interface P on (1), it is characterized in that: being covered with elder generation on the shell (1)
Sealing cover (2) are led, gas control interface P1 is provided on guide's sealing cover (2), is provided with guide valve blocks in the shell (1)
(3) it can be axially movably assemblied in guide valve blocks (3) with guide's valve rod (4), guide's valve rod (4), the elder generation
The front of pilot stem (4) is fixed with sealing valve port pad (5), and the valve port H in the sealing valve port pad (5) and guide valve blocks (3) matches
It closes, is provided with pilot valve balancing spring (6) between the rear portion and guide's sealing cover (2) of guide's valve rod (4)；The confession
Gas interface P is communicated with the pilot valve working chamber E in the middle part of guide's valve rod (4), the gas control interface P1 and guide valve blocks (3) rear portion
First guide cavity F communicate.
2. a kind of vacuum generator pilot-operated type switching device according to claim 1, it is characterized in that: the pilot valve
The rear portion of bar (4) is provided with position limiting convex ring (41), which is provided with movable sealing circle (42).
3. a kind of vacuum generator pilot-operated type switching device according to claim 2, it is characterized in that: the pilot valve
The rear portion of bar (4) is provided with spring assembly cavity (4a), and the pilot valve balancing spring (6) is assemblied in the spring assembly cavity (4a)
It is interior.
4. a kind of vacuum generator pilot-operated type switching device according to claim 3, it is characterized in that: the guide is close
It is provided with spring inserting column (21) in capping (2), one end of the pilot valve balancing spring (6) is placed on the spring inserting column (21)
Outside.
5. a kind of vacuum generator pilot-operated type switching device according to claim 4, it is characterized in that: the pilot valve
The front of sealing valve port pad (5) is provided with aluminium briquet (51) on bar (4).
6. a kind of vacuum generator pilot-operated type switching device according to claim 5, it is characterized in that: the pilot valve
It is fixed with circlip (52) in the front of aluminium briquet (51) on bar (4).
7. a kind of vacuum generator pilot-operated type switching device according to claim 6, it is characterized in that: the pilot valve
O-ring (7) are provided between body (3) and the shell (1).
8. a kind of vacuum generator pilot-operated type switching device according to claim 7, it is characterized in that: the pilot valve
The periphery of body (3) offers O-ring slot (3a), and the O-ring (7) is in corresponding O-ring slot (3a).
9. a kind of vacuum generator pilot-operated type switching device according to claim 8, it is characterized in that: the shell
(1) first guide cavity gasket (8) is provided between guide's sealing cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252748.9U CN209524101U (en) | 2019-02-28 | 2019-02-28 | A kind of vacuum generator pilot-operated type switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920252748.9U CN209524101U (en) | 2019-02-28 | 2019-02-28 | A kind of vacuum generator pilot-operated type switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209524101U true CN209524101U (en) | 2019-10-22 |
Family
ID=68231655
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920252748.9U Active CN209524101U (en) | 2019-02-28 | 2019-02-28 | A kind of vacuum generator pilot-operated type switching device |
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|---|---|
| CN (1) | CN209524101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737213A (en) * | 2019-02-28 | 2019-05-10 | 星宇电子(宁波)有限公司 | A kind of vacuum generator pilot-operated type switching device |
-
2019
- 2019-02-28 CN CN201920252748.9U patent/CN209524101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737213A (en) * | 2019-02-28 | 2019-05-10 | 星宇电子(宁波)有限公司 | A kind of vacuum generator pilot-operated type switching device |
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