CN210802756U - High-precision pressure transmitter - Google Patents
High-precision pressure transmitter Download PDFInfo
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- CN210802756U CN210802756U CN201922237029.2U CN201922237029U CN210802756U CN 210802756 U CN210802756 U CN 210802756U CN 201922237029 U CN201922237029 U CN 201922237029U CN 210802756 U CN210802756 U CN 210802756U
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Abstract
The utility model relates to the field of pressure detection, and discloses a high-precision pressure transmitter, which comprises a shell, wherein the left side of the upper surface of the shell is provided with a hole, the hole positioned on the left side of the upper surface of the shell extends to the inside of the shell by penetrating through the upper surface of the shell, an air inlet one-way valve is fixedly arranged at the inner circle of the hole positioned on the left side of the upper surface of the shell, the air inlet one-way valve extends to the upper part of the shell by penetrating through the hole positioned on the left side of the upper surface of the shell, a round hole is arranged on the right side of the upper surface of the shell, the circular hole at the right side of the upper surface of the housing extends through the upper surface of the housing to the inside of the housing, an air outlet one-way valve is fixedly arranged at the inner circle of the circular hole on the upper surface of the shell, a circular hole is arranged at the middle position of the upper surface of the shell, the circular hole located at the middle position of the upper surface of the shell extends to the inside of the shell through the upper surface of the shell. The utility model discloses in, set up the pressure sensor through the inside at the box, reached the effect of real-time detection pressure variation.
Description
Technical Field
The invention relates to the field of pressure detection, in particular to a high-precision pressure transmitter.
Background
A pressure transmitter is a device that converts pressure into a pneumatic signal or an electric signal for control and remote transmission. It can convert the physical pressure parameters sensed by the load cell sensor into standard electric signals for the secondary instruments such as indicating alarm, recorder and regulator to measure, indicate and regulate the process. The existing pressure transmitter specially used for gas in the market has a complex structure, has certain delay from the detection of pressure change to the transmission and display of the changed pressure, cannot accurately display the pressure change in real time, and often causes certain potential safety hazard due to the inconvenience in use of the traditional pressure transmitter caused by the delay. To this end, we propose a high precision pressure transmitter.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a high-precision pressure transmitter.
In order to achieve the above purpose, the invention adopts the following technical scheme that the high-precision pressure transmitter comprises a shell, wherein a hole is formed in the left side of the upper surface of the shell, the hole positioned in the left side of the upper surface of the shell penetrates through the upper surface of the shell and extends into the shell, an air inlet one-way valve is fixedly installed at the inner circle of the hole positioned in the left side of the upper surface of the shell, the air inlet one-way valve penetrates through the upper surface of the shell through the hole positioned in the left side of the upper surface of the shell and extends to the upper part of the shell, a circular hole is formed in the right side of the upper surface of the shell, the circular hole positioned in the right side of the upper surface of the shell penetrates through the upper surface of the shell and extends into the shell, an air outlet one-way valve is fixedly installed at the inner circle of the circular hole positioned in the upper surface of the shell, a circular, a pressure indicator is arranged right above the circular hole in the middle of the upper surface of the shell, and a display screen is fixedly mounted on the upper surface of the pressure indicator.
The bottom fixed mounting of pressure indicator has the pressure sensor, the pressure sensor extends to the inside of casing through the round hole of seting up at casing upper surface intermediate position, the pressure sensor is the cylinder structure, the inside of pressure sensor is hollow, the round hole department in the bottom of pressure sensor is provided with rubber piston, one side fixed mounting that rubber piston kept away from the centre of a circle has the carriage release lever.
Preferably, a semi-ring contact is fixedly mounted above the moving rod, the semi-ring contact is of a semi-circular structure, and a cylindrical resistor is fixedly mounted on the inner wall surface of the top end of the pressure sensor.
Preferably, the semi-ring contact is movably sleeved at the excircle of the cylindrical resistor, and the cylindrical resistor and the semi-ring contact are components of a closed circuit.
Preferably, a pressure sensing spring is fixedly mounted at the middle position of the upper surface of the rubber piston, and the upper end of the pressure sensing spring is fixedly connected with the inner upper wall surface of the pressure sensor.
Advantageous effects
The invention provides a high-precision pressure transmitter. The method has the following beneficial effects:
(1) the high-precision pressure transmitter comprises an air guide pipe, wherein the air guide pipe is connected to the upper part of an air inlet check valve, gas is filled into the shell through the air guide pipe, the air pressure in the shell is changed at the moment, a rubber piston at the bottom end of a pressure sensor in the shell is pressed to move upwards, a moving rod arranged above the rubber piston drives a semi-ring contact to move upwards at the excircle of a cylindrical resistor, the resistance of the cylindrical resistor connected into a closed circuit is reduced at the moment, a circuit chip in a pressure indicator converts the current connected into the circuit into a corresponding pressure value to be displayed on a display on the upper surface of the pressure indicator, when the gas in the shell is discharged through an air outlet check valve on the upper surface of the shell, the pressure of the gas in the shell is reduced at the moment, the rubber piston at the bottom end of the pressure sensor in the shell moves downwards to drive the semi-ring contact at the excircle of the, the resistance value of the cylindrical resistor connected into the closed circuit is reduced, the circuit chip positioned in the pressure indicator converts the current connected into the circuit into a corresponding pressure value to be displayed on the display on the upper surface of the pressure indicator, and the effects of detecting the pressure in the box body and converting the information into a digital signal to be transmitted to the display are achieved.
(2) This high accuracy pressure transmitter, after the inside gaseous atmospheric pressure of box changes, rubber piston reciprocated thereupon immediately, and the semi-ring contact with the carriage release lever fixed connection of gas piston top reciprocated in the excircle department of cylinder resistance, has reached the effect of real-time detection pressure variation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional structural use diagram of the present invention;
FIG. 3 is a schematic diagram of a pressure sensor according to the present invention;
fig. 4 is a schematic diagram of a semi-ring contact structure according to the present invention.
Illustration of the drawings:
the device comprises a shell 1, an air inlet one-way valve 2, an air outlet one-way valve 3, a pressure indicator 4, a pressure sensor 5, a rubber piston 6, a moving rod 7, a semi-ring contact 8, a cylindrical resistor 9 and a pressure sensing spring 10.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): a high-precision pressure transmitter is disclosed, as shown in fig. 1-4, and comprises a casing 1, the casing 1 is of a cylindrical structure, the casing 1 is made of metal, the inside of the casing 1 is hollow, the left side of the upper surface of the casing 1 is provided with a hole, the hole on the left side of the upper surface of the casing 1 extends to the inside of the casing 1 through the upper surface of the casing 1, an air inlet check valve 2 is fixedly mounted at the inner circle of the hole on the left side of the upper surface of the casing 1, the air inlet check valve 2 is of a cylindrical structure, the air inlet check valve 2 extends to the upper side of the casing 1 through the hole on the left side of the upper surface of the casing 1, the air can be guided into the inside of the casing 1 in a single direction after being connected with a conduit, the right side of the upper surface of the casing 1 is provided with a circular hole, the circular hole on the right side of the upper surface of the, this be located interior round hole of casing 1 upper surface department fixed mounting of giving vent to anger check valve 3, 3 access pipes of giving vent to anger can be with the inside of casing 1 of the one-way discharge of the inside gas of casing 1 behind the check valve 3, the check valve 2 of admitting air and the check valve 3 of giving vent to anger have the structure, do not repeated here, the circular shape hole has been seted up to the upper surface intermediate position of casing 1, and the circular hole that should be located the 1 upper surface intermediate position of casing runs through the upper surface of casing 1 and extends to the inside of casing 1, should be located casing 1 upper surface intermediate position's circular hole and be provided with pressure indicator 4 directly over, pressure indicator 4 is the cylinder structure, the last fixed surface of pressure indicator 4 installs the display screen.
The pressure indicator 4 is fixedly provided with a pressure sensor 5 at the bottom, the pressure sensor 5 extends into the casing 1 through a round hole formed in the middle position of the upper surface of the casing 1, the pressure sensor 5 is of a cylindrical structure, the inside of the pressure sensor 5 is hollow, a rubber piston 6 is arranged at the inner circle position of the bottom end of the pressure sensor 5, the rubber piston 6 is of a disc-shaped structure, the rubber piston 6 is made of rubber, a movable rod 7 is fixedly arranged on one side of the rubber piston 6 far away from the center of the circle, the movable rod 7 is of a cuboid structure, a semi-ring contact 8 is fixedly arranged above the movable rod 7, the semi-ring contact 8 is of a semi-circular structure, the semi-ring contact 8 is made of metal, a cylindrical resistor 9 is fixedly arranged on the inner wall surface of the top end of the pressure sensor 5, the semi-ring contact 9 is of a cylindrical structure, and the semi-ring contact, the cylindrical resistor 9 and the semi-ring contact 8 are components of a closed circuit, when the semi-ring contact 8 moves up and down on the surface of the cylindrical resistor 9, the resistance value of the cylindrical resistor 9 connected into the circuit changes, the closed circuit formed by the cylindrical resistor 9 and the semi-ring contact 8 is electrically connected with a circuit chip located inside the pressure indicator 4, the circuit chip located inside the pressure indicator 4 can instantly convert the current connected into the circuit chip into corresponding pressure, the circuit chip located inside the pressure indicator 4 is the prior art, and is not described herein any more, the pressure sensing spring 10 is fixedly installed in the middle of the upper surface of the rubber piston 6, and the upper end of the pressure sensing spring 10 is fixedly connected with the inner upper wall surface of the pressure sensor 5.
The working principle of the invention is as follows:
when the pressure indicator is used, the air guide pipe is connected to the upper part of the air inlet check valve 2, air is filled into the shell 1 through the air guide pipe, the air pressure in the shell 1 is changed at the moment, the rubber piston 6 at the bottom end of the pressure sensor 5 in the shell 1 is pressed to move upwards, the moving rod 7 arranged above the rubber piston 6 drives the semi-ring contact 8 to move upwards at the excircle of the cylindrical resistor 9, the resistance of the cylindrical resistor 9 connected into the closed circuit is reduced at the moment, the circuit chip in the pressure indicator 4 converts the current in the connected circuit into a corresponding pressure value to be displayed on the display on the upper surface of the pressure indicator 4, when the air in the shell 1 is discharged through the air outlet check valve 3 on the upper surface of the shell 1, the pressure of the air in the shell 1 is reduced at the moment, the rubber piston 6 at the bottom end of the pressure sensor 5 in the shell 1 moves downwards to drive the semi-ring contact 8 at the excircle of the cylindrical resistor 9 to move downwards, the resistance value of the cylindrical resistor 9 connected into the closed circuit is reduced, and a circuit chip positioned inside the pressure indicator 4 converts the current connected into the circuit into a corresponding pressure value to be displayed on a display on the upper surface of the pressure indicator 4.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (5)
1. A high accuracy pressure transmitter, includes casing (1), its characterized in that: a hole is formed in the left side of the upper surface of the shell (1), an air inlet one-way valve (2) is fixedly mounted at the inner circle position of the hole in the left side of the upper surface of the shell (1), a circular hole is formed in the right side of the upper surface of the shell (1), an air outlet one-way valve (3) is fixedly mounted at the inner circle position of the circular hole in the upper surface of the shell (1), a circular hole is formed in the middle position of the upper surface of the shell (1), and a pressure indicator (4) is arranged right above the circular hole in the middle position of the upper surface of the shell (1);
the pressure indicator is characterized in that a pressure sensor (5) is fixedly mounted at the bottom of the pressure indicator (4), a rubber piston (6) is arranged at the inner circle of the bottom end of the pressure sensor (5), a moving rod (7) is fixedly mounted on one side, far away from the circle center, of the rubber piston (6), a semi-ring contact (8) is fixedly mounted above the moving rod (7), a cylindrical resistor (9) is fixedly mounted on the inner wall surface of the top end of the pressure sensor (5), a pressure sensing spring (10) is fixedly mounted at the middle position of the upper surface of the rubber piston (6), and the upper end of the pressure sensing spring (10) is fixedly connected with the inner upper wall surface of the pressure sensor (5).
2. A high accuracy pressure transmitter as claimed in claim 1, wherein: the hole on the left side of the upper surface of the shell (1) penetrates through the upper surface of the shell (1) and extends to the inside of the shell (1), and the air inlet check valve (2) penetrates through the hole on the left side of the upper surface of the shell (1) and extends to the upper side of the shell (1).
3. A high accuracy pressure transmitter as claimed in claim 1, wherein: the circular hole on the right side of the upper surface of the shell (1) penetrates through the upper surface of the shell (1) and extends to the inside of the shell (1), the circular hole in the middle position of the upper surface of the shell (1) penetrates through the upper surface of the shell (1) and extends to the inside of the shell (1), and a display screen is fixedly mounted on the upper surface of the pressure indicator (4).
4. A high accuracy pressure transmitter as claimed in claim 1, wherein: the pressure sensor (5) extends to the inside of the shell (1) through a round hole formed in the middle of the upper surface of the shell (1), the pressure sensor (5) is of a cylindrical structure, and the inside of the pressure sensor (5) is hollow.
5. A high accuracy pressure transmitter as claimed in claim 1, wherein: the semi-ring contact (8) is of a semi-circular structure, the semi-ring contact (8) is movably sleeved on the outer circle of the cylindrical resistor (9), and the cylindrical resistor (9) and the semi-ring contact (8) are components of a closed circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237029.2U CN210802756U (en) | 2019-12-13 | 2019-12-13 | High-precision pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922237029.2U CN210802756U (en) | 2019-12-13 | 2019-12-13 | High-precision pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802756U true CN210802756U (en) | 2020-06-19 |
Family
ID=71249066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922237029.2U Active CN210802756U (en) | 2019-12-13 | 2019-12-13 | High-precision pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210802756U (en) |
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2019
- 2019-12-13 CN CN201922237029.2U patent/CN210802756U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 5, Donglian Road, Industrial Concentration Zone, Dalou Town, Jinhu County, Huai'an City, Jiangsu Province, 211600 Patentee after: Hongqi Automatic Control (Jiangsu) Co.,Ltd. Address before: No. 5, Donglian Road, Industrial Concentration Zone, Dalou Town, Jinhu County, Huai'an City, Jiangsu Province, 211600 Patentee before: HONGQI INSTRUMENT (JIANGSU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230103 Address after: 2B07, Floor 2, Building 2, No. 177, Jiankang West Road, Jinhu County, Huai'an City, Jiangsu Province, 223001 Patentee after: Jiangsu Teflon Automation Equipment Co.,Ltd. Address before: No. 5, Donglian Road, Industrial Concentration Zone, Dalou Town, Jinhu County, Huai'an City, Jiangsu Province, 211600 Patentee before: Hongqi Automatic Control (Jiangsu) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A High Precision Pressure Transmitter Effective date of registration: 20230303 Granted publication date: 20200619 Pledgee: Jiangsu Jinhu Rural Commercial Bank Co.,Ltd. Pledgor: Jiangsu Teflon Automation Equipment Co.,Ltd. Registration number: Y2023980034025 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 2B07, Floor 2, Building 2, No. 177, Jiankang West Road, Jinhu County, Huai'an City, Jiangsu Province, 223001 Patentee after: Jiangsu Hongqi Anti corrosion Engineering Co.,Ltd. Country or region after: China Address before: 2B07, Floor 2, Building 2, No. 177, Jiankang West Road, Jinhu County, Huai'an City, Jiangsu Province, 223001 Patentee before: Jiangsu Teflon Automation Equipment Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |