CN206223355U - A kind of high-air-tightness inlet structure on vacuum transducer - Google Patents
A kind of high-air-tightness inlet structure on vacuum transducer Download PDFInfo
- Publication number
- CN206223355U CN206223355U CN201621291976.XU CN201621291976U CN206223355U CN 206223355 U CN206223355 U CN 206223355U CN 201621291976 U CN201621291976 U CN 201621291976U CN 206223355 U CN206223355 U CN 206223355U
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- CN
- China
- Prior art keywords
- air
- air inlet
- vacuum transducer
- inlet
- admission hole
- Prior art date
- 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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Abstract
The utility model discloses the high-air-tightness inlet structure on a kind of vacuum transducer,It is related to detection technique field,Including vacuum transducer body,The vacuum transducer body is provided with the air inlet of tubulose,Air inlet bottom surface is additionally provided with the air admission hole of some circumferential arrays,The air admission hole is connected with the intrinsic air flue of vacuum transducer,The bottom surface of air inlet is additionally provided with a circle annular protrusion,Air admission hole is in annular protrusion,A cylindrical protrusions are provided with the bottom center of air inlet,The bottom shape of air inlet is plane or the sphere for caving inward,The outer rim of air admission hole is provided with the sealing structure that a circle is engaged with the bottom shape of air inlet,The inlet structure that the utility model is used,Seal membrane can be placed in annular protrusion,By the bottom shape for changing traditional air inlet,Devise sealing structure with matching,Enable that seal membrane is close to air admission hole all the time,Ensure that air-tightness higher.
Description
Technical field
The utility model is related to detection technique field, and in particular to the high-air-tightness air inlet knot on a kind of vacuum transducer
Structure.
Background technology
Vacuum transducer is a kind of pressure sensor commonly used in industrial practice, and it is widely used in various industrial automatic control rings
Border, be related to petroleum pipeline, water conservancy and hydropower, railway traffic, intelligent building, production automatic control, Aero-Space, military project, petrochemical industry, oil well,
Numerous industries such as electric power, ship, lathe, ventilation shaft.
The operation principle of vacuum transducer is that the pressure of medium is acted directly on the diaphragm of sensor, make diaphragm produce with
The micro-displacement that pressure medium is directly proportional, makes the resistance of sensor change, and detects this change with electronic circuit, and changes
One standard signal for corresponding to this pressure of output.
The inlet structure air-tightness of current vacuum transducer is not very good, causes certainty of measurement relatively low, is as a result forbidden
Really, thus need to be improved the air inlet of existing vacuum transducer.
Utility model content
The purpose of this utility model is to provide the high-air-tightness inlet structure on a kind of vacuum transducer, existing to solve
There is caused drawbacks described above in technology.
A kind of high-air-tightness inlet structure on vacuum transducer, including vacuum transducer body, the vacuum sensing
Device body is provided with the air inlet of tubulose, and air inlet bottom surface is additionally provided with the air admission hole of some circumferential arrays, the air admission hole with it is true
The intrinsic air flue connection of empty sensor, the bottom surface of air inlet is additionally provided with a circle annular protrusion, and air admission hole is located in annular protrusion,
A cylindrical protrusions are provided with the bottom center of air inlet, the bottom shape of air inlet is plane or the sphere for caving inward, and is entered
The outer rim of stomata is provided with the sealing structure that a circle is engaged with the bottom shape of air inlet.
Preferably, the bottom shape of the air inlet is specially plane, and the sealing structure is specially a circle outwardly convex
Ring-shaped step.
Preferably, the bottom shape of the air inlet is specially the sphere for caving inward, and the sealing structure is specially one
The annular breach that circle caves inward.
Preferably, the quantity of the air admission hole is 6.
Preferably, the side of the air inlet is inner small and outside big step-like.
The utility model has the advantage of：The inlet structure that the utility model is used, can be placed on ring by seal membrane
In shape is raised, by changing the bottom shape of traditional air inlet, sealing structure with matching is devised so that diaphragm seal
Piece can all the time be close to air admission hole, it is ensured that air-tightness higher.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 in the utility model.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is the sectional view in Fig. 2 along A-A directions.
Fig. 4 is the structural representation of embodiment 2 in the utility model.
Fig. 5 is the front view of Fig. 4.
Fig. 6 is the sectional view in Fig. 5 along A-A directions.
Wherein, 1- vacuum transducers body, 2- air inlets, 3- air admission holes, 4- annular protrusions, 5- cylindrical protrusions, 6- rings
Shape step, 7- annular breach.
Specific embodiment
For technological means, creation characteristic, reached purpose and effect for realizing the utility model are easy to understand, below
With reference to specific embodiment, the utility model is expanded on further.
Embodiment 1：
As shown in Figure 1 to Figure 3, a kind of high-air-tightness inlet structure on vacuum transducer, including vacuum transducer sheet
Body 1, the vacuum transducer body 1 is provided with the air inlet 2 of tubulose, and the bottom surface of air inlet 2 is additionally provided with entering for some circumferential arrays
Stomata 3, the air admission hole 3 is connected with the air flue in vacuum transducer body 1, and the bottom surface of air inlet 2 is additionally provided with a circle convex annular
4 are played, air admission hole 3 is provided with a cylindrical protrusions 5, the bottom surface of air inlet 2 in annular protrusion 4 at the bottom center of air inlet 2
It is shaped as plane or the sphere for caving inward, it is close with what the bottom shape of air inlet 2 was engaged that the outer rim of air admission hole 3 is provided with a circle
Seal structure.
In the present embodiment, the bottom shape of the air inlet 2 is specially plane, the sealing structure be specially a circle to
The ring-shaped step 6 of outer lug.
In the present embodiment, the quantity of the air admission hole 3 is 6.
Additionally, the side of the air inlet 2 is inner small and outside big step-like, when using sealant sealing, can improve with
The fastness and compactness of suction nozzle connection.
Embodiment 2：
As shown in Figures 4 to 6, a kind of high-air-tightness inlet structure on vacuum transducer, including vacuum transducer sheet
Body 1, the vacuum transducer body 1 is provided with the air inlet 2 of tubulose, and the bottom surface of air inlet 2 is additionally provided with entering for some circumferential arrays
Stomata 3, the air admission hole 3 is connected with the air flue in vacuum transducer body 1, and the bottom surface of air inlet 2 is additionally provided with a circle convex annular
4 are played, air admission hole 3 is provided with a cylindrical protrusions 5, the bottom surface of air inlet 2 in annular protrusion 4 at the bottom center of air inlet 2
It is shaped as plane or the sphere for caving inward, it is close with what the bottom shape of air inlet 2 was engaged that the outer rim of air admission hole 3 is provided with a circle
Seal structure.
In the present embodiment, the bottom shape of the air inlet 2 is specially the sphere for caving inward, the sealing structure tool
Body is the annular breach 7 that a circle caves inward.
In the present embodiment, the quantity of the air admission hole 3 is 6.
Additionally, the side of the air inlet 2 is inner small and outside big step-like, when using sealant sealing, can improve with
The fastness and compactness of suction nozzle connection.
Based on above-mentioned, the structure of air inlet 2 that the utility model is used, seal membrane can be placed in annular protrusion 4, led to
The bottom shape of the air inlet 2 for changing traditional is crossed, sealing structure with matching is devised so that seal membrane can be all the time
It is close to air admission hole 3, it is ensured that air-tightness higher.
As known by the technical knowledge, the utility model can be by other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only
's.It is all in the range of the utility model or in the change being equal in the range of the utility model by the utility model bag
Contain.
Claims (5)
1. the high-air-tightness inlet structure on a kind of vacuum transducer, it is characterised in that described including vacuum transducer body
Vacuum transducer body is provided with the air inlet of tubulose, and air inlet bottom surface is additionally provided with the air admission hole of some circumferential arrays, it is described enter
Stomata is connected with the intrinsic air flue of vacuum transducer, and the bottom surface of air inlet is additionally provided with a circle annular protrusion, and air admission hole is located at ring
In shape is raised, a cylindrical protrusions are provided with the bottom center of air inlet, the bottom shape of air inlet is plane or caves inward
Sphere, the outer rim of air admission hole is provided with the sealing structure that a circle is engaged with the bottom shape of air inlet.
2. the high-air-tightness inlet structure on a kind of vacuum transducer according to claim 1, it is characterised in that：It is described
The bottom shape of air inlet is specially plane, and the sealing structure is specially the ring-shaped step of a circle outwardly convex.
3. the high-air-tightness inlet structure on a kind of vacuum transducer according to claim 1, it is characterised in that：It is described
The bottom shape of air inlet is specially the sphere for caving inward, and the sealing structure is specially the annular that a circle caves inward and lacks
Mouthful.
4. the high-air-tightness inlet structure on a kind of vacuum transducer according to Claims 2 or 3, it is characterised in that：
The quantity of the air admission hole is 6.
5. the high-air-tightness inlet structure on a kind of vacuum transducer according to claim 4, it is characterised in that：It is described
The side of air inlet is inner small and outside big step-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291976.XU CN206223355U (en) | 2016-11-28 | 2016-11-28 | A kind of high-air-tightness inlet structure on vacuum transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621291976.XU CN206223355U (en) | 2016-11-28 | 2016-11-28 | A kind of high-air-tightness inlet structure on vacuum transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223355U true CN206223355U (en) | 2017-06-06 |
Family
ID=58786770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621291976.XU Expired - Fee Related CN206223355U (en) | 2016-11-28 | 2016-11-28 | A kind of high-air-tightness inlet structure on vacuum transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572649A (en) * | 2018-12-30 | 2019-04-05 | 吉林东光奥威汽车制动系统有限公司 | A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region |
-
2016
- 2016-11-28 CN CN201621291976.XU patent/CN206223355U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109572649A (en) * | 2018-12-30 | 2019-04-05 | 吉林东光奥威汽车制动系统有限公司 | A kind of Motorized vacuum apparatus for controlling pump adapting to plateau and plains region |
| CN109572649B (en) * | 2018-12-30 | 2023-10-24 | 吉林东光奥威汽车制动系统有限公司 | Electric vacuum pump control device suitable for plateau and plateau areas |
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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: 20170606 Termination date: 20181128 |