CN217111258U - Pressure sensor with strong impact resistance - Google Patents
Pressure sensor with strong impact resistance Download PDFInfo
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- CN217111258U CN217111258U CN202220456508.2U CN202220456508U CN217111258U CN 217111258 U CN217111258 U CN 217111258U CN 202220456508 U CN202220456508 U CN 202220456508U CN 217111258 U CN217111258 U CN 217111258U
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Abstract
A pressure sensor with strong impact resistance comprises a shell, wherein a pressure core body and a cable are respectively clamped at two ends of the shell, a pressure leading hole is longitudinally formed in the center of the pressure core body, a strain area is arranged on the side wall of the pressure core body corresponding to the pressure leading hole, a foil type strain gauge is pasted on the outer side surface of the strain area, and the cable is connected with a circuit board arranged in the pressure core body; the pressure guiding hole is a small-diameter hole and a large-diameter hole which are communicated from outside to inside in sequence, and the strain area is arranged on the side wall corresponding to the large-diameter hole; the strain area is clamped in the shell, and a strain cavity is arranged between the strain area and the shell. The utility model discloses a strain area that will paste the paper tinsel strainometer sets up on the lateral wall of pressure core to make the strain area receive the probability significantly reduced that is surveyed the medium or wherein impurity direct impact, improved the reliability of product, strengthened the shock resistance of product, prolonged the life of product.
Description
Technical Field
The utility model relates to a sensor technical field, concretely relates to pressure sensor that impact resistance is strong.
Background
The pressure sensor is a pressure detection device which senses the pressure of a medium to be detected by utilizing a strain area of a pressure core body and converts deformation of the strain area into an electric signal by using a sensitive element on the strain area. The pressure sensor is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, war industry, petrochemical industry, oil wells, electric power, ships, machine tools, pipelines and the like. The existing pressure sensor is the glass micro-melting pressure sensor with the best impact resistance, the strain area of the glass micro-melting pressure sensor is arranged at the top end of the pressure leading hole, when impurities exist in a measured medium, the strain area of the glass micro-melting pressure sensor can be directly impacted, and when the pressure is larger, the strain area of the glass micro-melting pressure sensor is easily broken, so that the pressure sensor is damaged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome the above-mentioned defect that prior art exists, provide the strong pressure sensor of impact resistance who improves the reliability of product and the impact resistance of reinforcing product.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a pressure sensor that impact resistance is strong, includes the shell, the both ends of shell clamp pressure core and cable conductor respectively, the center of pressure core vertically is equipped with draws the pressure hole, with draw and be equipped with the strain area on the lateral wall of the pressure core that the pressure hole corresponds, paste the foil type strainometer on the lateral surface in strain area, the cable conductor is connected with the circuit board of locating in the pressure core.
Furthermore, the pressure guiding hole is a small-diameter hole and a large-diameter hole which are communicated from outside to inside in sequence, and the strain area is arranged on the side wall corresponding to the large-diameter hole.
Furthermore, the strain area is clamped in the shell, and a strain cavity is arranged between the strain area and the shell.
Furthermore, an explosion-proof layer is arranged at the end part of the inner side of the pressure leading hole.
Further, the cable is mounted on the housing through a cable joint.
Furthermore, the circuit board is arranged on the outer side of the explosion-proof layer, and a protection cavity is arranged between the cable joint and the circuit board.
The beneficial effects of the utility model are that, conventional product is all direct to be regarded as the strain area with drawing the pressure hole top, but general strain area all requires to have deformation, so relative wall thickness can be very thin, and it directly has impurity to strike over or in the medium suddenly when pressure, directly breaks through this strain area easily. The strain area adhered with the foil strain gauge is arranged on the side wall of the pressure core body, so that the probability that the strain area is directly impacted by a measured medium or impurities in the strain area is greatly reduced, the reliability of a product is improved, the impact resistance of the product is enhanced, and the service life of the product is prolonged. The utility model discloses simple structure, it is convenient to make, and the applicable military industry level blasting environment that the commonality is strong.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the drawings: 1. a housing; 2. a pressure core; 3. a cable wire; 4. a pressure guide hole; 5. a side wall; 6. a strained region; 7. a foil strain gauge; 8. a circuit board; 9. an explosion-proof layer; 10. a small-diameter hole; 11. a large-diameter hole; 12. a strain chamber; 13. a cable joint; 14. a protective cavity.
Detailed Description
The following embodiments are described in detail with reference to the following examples:
as shown in fig. 1 and 2, an embodiment of a pressure sensor with high impact resistance includes a housing 1, a pressure core 2 and a cable 3 are respectively clamped at two ends of the housing 1, a pressure guiding hole 4 is longitudinally formed in the center of the pressure core 2, a strain area 6 is arranged on a side wall 5 of the pressure core 2 corresponding to the pressure guiding hole 4, a foil strain gauge 7 is adhered on an outer side surface of the strain area 6, and the cable 3 is connected with a circuit board 8 arranged in the pressure core 2. The strain area 6 adhered with the foil strain gauge 7 is arranged on the side wall 5 of the pressure core body 2, so that the probability that the strain area 6 is directly impacted by a measured medium or impurities in the measured medium is greatly reduced, the reliability of a product is improved, the impact resistance of the product is enhanced, and the service life of the product is prolonged. The foil type strain gauge 7 can measure the deformation of the strain area 6, then the deformation is converted into an electric signal, and the electric signal is transmitted out through the circuit board 8 and the cable 3.
The pressure guiding hole 4 is a small-diameter hole 10 and a large-diameter hole 11 which are communicated with each other from outside to inside in sequence, and the strain area 6 is arranged on the side wall 5 corresponding to the large-diameter hole 11. The probability of the strained region 6 being directly impacted by the measured medium or impurities therein can be further reduced.
The strain area 6 is clamped in the shell 1, and a strain cavity 12 is arranged between the strain area and the shell 1. Foil strain gauge 7 can be better protected by strain chamber 12, so that foil strain gauge 7 has a deformation space, and deformation of housing 1 is prevented from damaging foil strain gauge 7.
The end part of the inner side of the pressure leading hole 4 is provided with an explosion-proof layer 9. The explosion-proof layer 9 can prevent the medium to be measured or impurities therein from bursting through the inner end of the pressure-leading hole 4.
The cable wires 3 are mounted to the housing 1 through cable connectors 13. The cable joint 13 is a copper nickel plated waterproof joint, and the cable 3 can be fixed and protected through the cable joint 13.
The circuit board 8 is arranged on the outer side of the explosion-proof layer 9, and a protection cavity 14 is arranged between the cable joint 13 and the circuit board 8. The circuit board 8 can be better protected by the protective cavity 14.
Those not described in detail in the specification are well within the skill of the art.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be considered to be within the protection scope of the present invention.
Claims (7)
1. The utility model provides a pressure sensor that impact resistance is strong, includes shell (1), the both ends of shell (1) clamp pressure core body (2) and cable conductor (3) respectively, its characterized in that, the center of pressure core body (2) vertically is equipped with draws pressure hole (4), with draw and be equipped with strain area (6) on lateral wall (5) of pressure core body (2) that pressure hole (4) correspond, paste foil strain gauge (7) on the lateral surface of strain area (6), cable conductor (3) are connected with circuit board (8) of locating in the pressure core body (2).
2. The high-impact-resistance pressure sensor according to claim 1, wherein the pressure guiding hole (4) is a small-diameter hole (10) and a large-diameter hole (11) which are communicated with each other from outside to inside, and the strain region (6) is arranged on the side wall (5) corresponding to the large-diameter hole (11).
3. A high impact resistance pressure sensor according to claim 2, wherein the strain region (6) is clamped in the housing (1) and a strain chamber (12) is provided between the strain region and the housing (1).
4. A high impact resistance pressure sensor according to claim 3, wherein the inner end of the pressure guiding hole (4) is provided with an explosion-proof layer (9).
5. A high impact resistance pressure sensor according to claim 4, wherein the cable (3) is mounted to the housing (1) by means of a cable connector (13).
6. A high-impact-resistance pressure sensor according to claim 5, wherein the circuit board (8) is arranged outside the explosion-proof layer (9), and a protective cavity (14) is arranged between the cable connector (13) and the circuit board (8).
7. A high impact resistance pressure sensor according to claim 6, wherein the housing (1) is generally cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220456508.2U CN217111258U (en) | 2022-03-03 | 2022-03-03 | Pressure sensor with strong impact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220456508.2U CN217111258U (en) | 2022-03-03 | 2022-03-03 | Pressure sensor with strong impact resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217111258U true CN217111258U (en) | 2022-08-02 |
Family
ID=82600603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220456508.2U Active CN217111258U (en) | 2022-03-03 | 2022-03-03 | Pressure sensor with strong impact resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217111258U (en) |
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2022
- 2022-03-03 CN CN202220456508.2U patent/CN217111258U/en active Active
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