CN212585879U - Pressure sensor for air pressure monitoring - Google Patents
Pressure sensor for air pressure monitoring Download PDFInfo
- Publication number
- CN212585879U CN212585879U CN202021169805.6U CN202021169805U CN212585879U CN 212585879 U CN212585879 U CN 212585879U CN 202021169805 U CN202021169805 U CN 202021169805U CN 212585879 U CN212585879 U CN 212585879U
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- casing
- circuit board
- micrometer head
- laser micrometer
- sealing ring
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Abstract
The utility model discloses a pressure sensor for atmospheric pressure monitoring, which comprises a housin, the inside sliding connection in one side of casing has the little movable plate of elasticity, the inside of casing is provided with the vacuum air chamber, top one side of casing is provided with the vacuum suction pipe, the center department of vacuum suction pipe is provided with the pneumatic valve, the opposite side fixedly connected with insulating casing of casing, the inside fixedly connected with circuit board of insulating casing, one side center department fixedly connected with laser micrometer head of circuit board, the week side of laser micrometer head is provided with the sealing ring, week side and casing fixed connection of sealing ring, the opposite side below of circuit board is provided with data and power transmission line. Because vacuum air chamber and external atmospheric pressure are inconsistent, can lead to the elasticity fine motion piece to contract inwards, monitor the change volume of elasticity fine motion piece through the laser micrometer head, calculate by the change volume of elasticity fine motion piece and inside atmospheric pressure data and obtain outside atmospheric pressure data.
Description
Technical Field
The utility model relates to an atmospheric pressure monitoring field especially relates to a pressure sensor for atmospheric pressure monitoring.
Background
The existing gas pressure sensor needs to carry out timing monitoring in the using process, measurement is carried out once every few minutes, the time interval in the measuring process is long, the sensing is insensitive, and most of the volume is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and provides a pressure sensor for air pressure monitoring.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a pressure sensor for atmospheric pressure monitoring, includes the casing, the inside sliding connection in one side of casing has the little movable plate of elasticity, the inside of casing is provided with vacuum air chamber, top one side of casing is provided with the vacuum suction pipe, the center department of vacuum suction pipe is provided with the pneumatic valve, the opposite side fixedly connected with insulating casing of casing, the inside fixedly connected with circuit board of insulating casing, fixedly connected with laser micrometer head is located at one side center of circuit board, the week side of laser micrometer head is provided with the sealing ring, week side and casing fixed connection of sealing ring, the opposite side below of circuit board is provided with data and power transmission line.
As a further description of the above technical solution:
the periphery of the sealing ring is bonded with the shell, the inside of the sealing ring is bonded with the laser micrometer head, and the bonding material is sealant.
As a further description of the above technical solution:
the circuit board is welded with a single chip microcomputer chip at one side close to the laser micrometer head, and the laser micrometer head is electrically connected with the single chip microcomputer chip.
As a further description of the above technical solution:
the casing is provided with the spout in the sliding connection department with the little movable plate of elasticity, the week side of the little movable plate of elasticity is provided with two-way arch, be provided with the sealing washer between casing and the two-way arch.
As a further description of the above technical solution:
the vacuum suction pipe penetrates into the vacuum chamber, and the shell is provided with a through hole at the position corresponding to the sealing ring.
As a further description of the above technical solution:
a space for fixing the circuit board is reserved in the insulating shell, and through holes are formed in the corresponding positions of the data transmission line and the power transmission line of the insulating shell.
The utility model discloses following beneficial effect has:
1. the utility model discloses a cooperation that sets up elasticity fine motion piece and laser micrometer head detects atmospheric pressure, extracts the air in the vacuum air chamber, and inside atmospheric pressure forms the definite value, because vacuum air chamber is inconsistent with external atmospheric pressure, can lead to the elasticity fine motion piece to contract inwards, monitors the change amount of elasticity fine motion piece through the laser micrometer head, calculates by the change amount of elasticity fine motion piece and inside atmospheric pressure data and reachs outside atmospheric pressure data.
2. The utility model discloses a set up the little head of laser micrometer and carry out atmospheric pressure monitoring with the little movable plate of elasticity, can obtain real-time data, can form a continuous atmospheric pressure change curve for data is true directly perceived more.
Drawings
Fig. 1 is a schematic view of an overall structure of a pressure sensor for monitoring air pressure according to the present invention;
fig. 2 is a schematic view of an elastic micro-motion plate of a pressure sensor for monitoring air pressure according to the present invention;
fig. 3 is a schematic view of a micro-motion plate sliding groove of a pressure sensor for monitoring air pressure.
Illustration of the drawings:
1. a housing; 2. an elastic micromotion sheet; 3. a vacuum chamber; 4. a vacuum suction pipe; 5. an air valve; 6. a circuit board; 7. laser micrometer head; 8. a seal ring; 9. data and power transmission lines; 10. an insulating case; 11. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides an embodiment: a pressure sensor for air pressure monitoring comprises a shell 1, an elastic micromotion piece 2 is connected inside one side of the shell 1 in a sliding mode and moves under the influence of air pressure, a vacuum air chamber 3 is arranged inside the shell 1, air in the vacuum air chamber 3 is pumped out to form an internal air pressure difference and an external air pressure difference, a vacuum suction pipe 4 is arranged on one side of the top end of the shell 1, a vacuum pipeline is pumped out of the vacuum air chamber 3, an air valve 5 is arranged at the center of the vacuum suction pipe 4 and is opened after air pumping, the air valve 5 is closed before a vacuum pump is separated after air pumping, an insulating shell 10 is fixedly connected to the other side of the shell 1 to protect electronic components, a circuit board 6 is fixedly connected inside the insulating shell 10, a laser micrometer head 7 is fixedly connected to the center of one side of the circuit board 6, the pressure sensor is essentially a distance sensor with high accuracy, and is used for detecting the distance, the periphery of the laser micrometer head 7 is provided with a sealing ring 8 to avoid air leakage, the periphery of the sealing ring 8 is fixedly connected with the shell 1, and a data and power transmission line 9 is arranged below the other side of the circuit board 6 and used for being connected with a power output element and a data display element.
The periphery of the sealing ring 8 is bonded with the shell 1, the inside of the sealing ring 8 is bonded with the laser micrometer head 7, the bonded material is sealant, a gap can be generated by simple contact connection, and the cost increased due to high precision is reduced. The circuit board 6 is welded with a single chip microcomputer chip at one side close to the laser micrometer head 7 and used for reading data, calculating data and outputting data, the laser micrometer head 7 is electrically connected with the single chip microcomputer chip, and signal data generated by the laser micrometer head 7 are transmitted to the single chip microcomputer for calculation. The sliding groove is formed in the sliding connection position of the shell 1 and the elastic micromotion piece 2, the two-way protrusions are arranged on the peripheral sides of the elastic micromotion piece 2, and the sealing ring 11 is arranged between the shell 1 and the two-way protrusions to guarantee air tightness. The vacuum suction pipe 4 penetrates into the vacuum chamber 3, and the housing 1 is provided with a through hole at a position corresponding to the seal ring 8. A space for fixing the circuit board 6 is left inside the insulating case 10, and a through hole is provided in the insulating case 10 at a position corresponding to the data and power transmission line 9.
The working principle is as follows: the air to in the vacuum air chamber 3 is extracted, and inside atmospheric pressure forms the definite value, because vacuum air chamber 3 is inconsistent with external atmospheric pressure, is less than outside atmospheric pressure when inside atmospheric pressure, can lead to elasticity micromotion piece 2 to inwards contract, monitors the change volume of elasticity micromotion piece 2 through laser micrometer head 7, calculates by the change volume of elasticity micromotion piece 2 and inside atmospheric pressure data and reachs outside atmospheric pressure data.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. A pressure sensor for air pressure monitoring, comprising a housing (1), characterized in that: the utility model discloses a laser micrometer head, including casing (1), the inside sliding connection of one side of casing (1) has elasticity micromotion piece (2), the inside of casing (1) is provided with vacuum air chamber (3), top one side of casing (1) is provided with vacuum suction pipe (4), the center department of vacuum suction pipe (4) is provided with pneumatic valve (5), opposite side fixedly connected with insulating casing (10) of casing (1), inside fixedly connected with circuit board (6) of insulating casing (10), one side center department fixedly connected with laser micrometer head (7) of circuit board (6), the week side of laser micrometer head (7) is provided with sealing ring (8), week side and casing (1) fixed connection of sealing ring (8), the opposite side below of circuit board (6) is provided with data and power transmission line (9).
2. A pressure sensor for air pressure monitoring as claimed in claim 1, wherein: the periphery of the sealing ring (8) is bonded with the shell (1), the inside of the sealing ring (8) is bonded with the laser micrometer head (7), and the bonded material is sealant.
3. A pressure sensor for air pressure monitoring as claimed in claim 1, wherein: the circuit board (6) is welded with a single chip microcomputer chip at one side close to the laser micrometer head (7), and the laser micrometer head (7) is electrically connected with the single chip microcomputer chip.
4. A pressure sensor for air pressure monitoring as claimed in claim 1, wherein: the casing (1) is provided with the spout in the sliding connection department with elasticity micromotion piece (2), the week side of elasticity micromotion piece (2) is provided with two-way arch, be provided with sealing washer (11) between casing (1) and the two-way arch.
5. A pressure sensor for air pressure monitoring as claimed in claim 1, wherein: the vacuum suction pipe (4) penetrates into the vacuum chamber (3), and a through hole is formed in the position, corresponding to the sealing ring (8), of the shell (1).
6. A pressure sensor for air pressure monitoring as claimed in claim 1, wherein: a space for fixing the circuit board (6) is reserved in the insulating shell (10), and through holes are formed in the corresponding positions of the data and power transmission lines (9) of the insulating shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021169805.6U CN212585879U (en) | 2020-06-22 | 2020-06-22 | Pressure sensor for air pressure monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021169805.6U CN212585879U (en) | 2020-06-22 | 2020-06-22 | Pressure sensor for air pressure monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212585879U true CN212585879U (en) | 2021-02-23 |
Family
ID=74650977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021169805.6U Active CN212585879U (en) | 2020-06-22 | 2020-06-22 | Pressure sensor for air pressure monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212585879U (en) |
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2020
- 2020-06-22 CN CN202021169805.6U patent/CN212585879U/en active Active
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