CN211954535U - Miniature fire control low-power consumption pressure sensor - Google Patents
Miniature fire control low-power consumption pressure sensor Download PDFInfo
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- CN211954535U CN211954535U CN202021097819.1U CN202021097819U CN211954535U CN 211954535 U CN211954535 U CN 211954535U CN 202021097819 U CN202021097819 U CN 202021097819U CN 211954535 U CN211954535 U CN 211954535U
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Abstract
The utility model discloses a miniature fire-fighting low-power consumption pressure sensor, which comprises an elastic body, wherein one side of the elastic body is provided with a connecting concave platform, and the other side is provided with a detection concave cavity; the strain gauge is electrically connected with the circuit board to form a detection bridge, and the circuit board is also connected with a cable for signal transmission; the detection cavity is sequentially filled with a sealant and an epoxy resin adhesive from inside to outside; the strain gauge, the circuit board and the joint of the cable and the circuit board are sealed by the sealant, and the cable is fixed by the epoxy resin adhesive; the outer end of the pressure joint is an M5 threaded interface, the pressure joint is provided with a pressure inlet channel with the diameter of 1.5mm along the axial direction, and the periphery of the pressure joint is in an S10 hexagonal shape; the sensor can be conveniently and quickly installed on the air pager, and the accuracy of detection can be guaranteed in the severe environment where fire occurs.
Description
Technical Field
The utility model relates to a sensor technical field specifically is a miniature fire control low-power consumption pressure sensor.
Background
As is known, modern fire protection professional equipment develops rapidly, wherein a breathing protection equipment pager worn by a rescuer needs a pressure measuring early warning sensor at a special required part of a high-pressure system, the pressure margin is required to be measured by a miniature pressure sensor with a threaded interface M5, the measuring range reaches 40MPa, and meanwhile, the low power consumption is met. At present, no sensor capable of reliably adapting to the working conditions for a long time exists, and the existing pressure sensor has overlarge thread and external dimension and is inconvenient to be connected with a pager.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a miniature fire control low-power consumption pressure sensor, this sensor can convenient and fast ground install on the air pager to can guarantee the accuracy that detects in the adverse circumstances that the conflagration took place.
The utility model provides a technical scheme that its technical problem adopted is:
a miniature fire-fighting low-power consumption pressure sensor comprises an elastic body, wherein one side of the elastic body is provided with a connecting concave platform, and the other side of the elastic body is provided with a detection concave cavity; the connecting concave table is welded with a pressure joint, and a strain gauge and a circuit board are arranged in the detection concave cavity; the strain gauge is electrically connected with the circuit board to form a detection bridge, and the circuit board is also connected with a cable for signal transmission; the detection cavity is sequentially filled with a sealant and an epoxy resin adhesive from inside to outside; the strain gauge, the circuit board and the joint of the cable and the circuit board are sealed by the sealant, and the cable is fixed by the epoxy resin adhesive;
the outer end of the pressure joint is an M5 threaded interface, the pressure joint is provided with a pressure inlet channel with the diameter of 1.5mm along the axial direction, and the periphery of the pressure joint is in an S10 hexagonal shape.
The utility model has the advantages that the pressure is led to the elastic body through the pressure inlet channel by the quick assembly connection of the M5 screw interface and the pager, the strain gauge carries out strain conversion, and finally the electric signal is transmitted through the cable by the detection bridge; the periphery of the pressure joint is in an S10 hexagonal shape, so that the operation of a wrench is convenient; the strain gauge adopts a high-resistance strain gauge, so that low power consumption is ensured, and the detection bridge has a temperature compensation function and eliminates the influence of severe working conditions; in addition, the elastomer and the pressure joint are welded by argon arc welding, so that the sensor has good sealing effect, and has safe, reliable, accurate and stable measuring capability.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the elastomer of the present invention.
Detailed Description
Referring to fig. 1 and 2, the present invention provides a miniature fire-fighting low-power consumption pressure sensor, which comprises an elastic body 1, wherein one side of the elastic body 1 is provided with a connecting concave platform 2, and the other side is provided with a detection concave cavity 3; the argon arc welding of the connecting concave table 2 is provided with a pressure joint 4, and a strain gauge 5 and a circuit board 6 are arranged in the detection concave cavity 3; the strain gauge 5 is electrically connected with a circuit board 6 to form a detection bridge, and the circuit board 6 is also connected with a cable 7 for signal transmission; the detection cavity 3 is sequentially filled with a sealant 8 and an epoxy resin adhesive 9 from inside to outside; the strainometer, the circuit board and the joint of the cable and the circuit board are sealed by the sealant 8, and the cable 7 is fixed by the epoxy resin glue 9.
The outer end of the pressure joint is an M5 threaded interface 10, the pressure joint 4 is provided with a pressure inlet channel 11 with the diameter of 1.5mm along the axial direction, and the periphery of the pressure joint 4 is in an S10 hexagonal shape.
The pressure is led to the elastic body through the pressure inlet channel, the strain gauge performs strain conversion, and finally the detection bridge transmits an electric signal through a cable; the periphery of the pressure joint is in an S10 hexagonal shape, so that the operation of a wrench is convenient; the strain gauge adopts a high-resistance strain gauge, so that low power consumption is ensured, and the detection bridge has a temperature compensation function and eliminates the influence of severe working conditions; in addition, the elastomer and the pressure joint are welded by argon arc welding, so that the sensor has good sealing effect, and has safe, reliable, accurate and stable measuring capability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the invention is not limited to the embodiments described herein, but is capable of other embodiments according to the invention, and may be used in various other applications, including, but not limited to, industrial. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (1)
1. A miniature fire-fighting low-power consumption pressure sensor comprises an elastic body, wherein one side of the elastic body is provided with a connecting concave platform, and the other side of the elastic body is provided with a detection concave cavity; the strain gauge is electrically connected with the circuit board to form a detection bridge, and the circuit board is also connected with a cable for signal transmission; the detection cavity is sequentially filled with a sealant and an epoxy resin adhesive from inside to outside; the strain gauge, the circuit board and the joint of the cable and the circuit board are sealed by the sealant, and the cable is fixed by the epoxy resin adhesive;
the outer end of the pressure joint is an M5 threaded interface, the pressure joint is provided with a pressure inlet channel with the diameter of 1.5mm along the axial direction, and the periphery of the pressure joint is in an S10 hexagonal shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097819.1U CN211954535U (en) | 2020-06-15 | 2020-06-15 | Miniature fire control low-power consumption pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097819.1U CN211954535U (en) | 2020-06-15 | 2020-06-15 | Miniature fire control low-power consumption pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211954535U true CN211954535U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021097819.1U Active CN211954535U (en) | 2020-06-15 | 2020-06-15 | Miniature fire control low-power consumption pressure sensor |
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| Country | Link |
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| CN (1) | CN211954535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358268A (en) * | 2021-06-07 | 2021-09-07 | 中国工程物理研究院总体工程研究所 | Pressure sensor |
-
2020
- 2020-06-15 CN CN202021097819.1U patent/CN211954535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358268A (en) * | 2021-06-07 | 2021-09-07 | 中国工程物理研究院总体工程研究所 | Pressure sensor |
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