CN210141925U - High-voltage radar sensor - Google Patents
High-voltage radar sensor Download PDFInfo
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- CN210141925U CN210141925U CN201921206310.3U CN201921206310U CN210141925U CN 210141925 U CN210141925 U CN 210141925U CN 201921206310 U CN201921206310 U CN 201921206310U CN 210141925 U CN210141925 U CN 210141925U
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Abstract
The application provides a high-voltage radar sensor, including casing, the antenna core of setting in the casing, set up antenna cover between antenna core and casing, set up the sealed lid of antenna core upper end in the casing and set up at antenna core lower extreme and antenna core threaded connection's lock nut. According to the sealing device, the first O-shaped sealing ring is arranged at the threaded connection part of the upper shell and the lower shell, so that the sealing performance of the connection part of the upper shell and the lower shell is improved; the second O-shaped sealing ring and the third O-shaped sealing ring are arranged, so that the sealing property between the lower shell and the antenna sleeve is greatly improved; the sealing structure is provided with the fourth O-shaped sealing ring and the fifth O-shaped sealing ring, the sealing performance between the antenna core and the lower end rod and between the antenna core and the antenna core sleeve is greatly improved, the first O-shaped sealing ring, the second O-shaped sealing ring, the third O-shaped sealing ring, the fourth O-shaped sealing ring and the fifth O-shaped sealing ring are matched, the sealing performance of the radar sensor is greatly improved, and the pressure resistance of the radar sensor is greatly improved.
Description
Technical Field
The utility model relates to a level measuring device field especially relates to a high-pressure radar sensor.
Background
The guided wave radar level meter is a measuring instrument based on the time travel principle, mainly comprises a probe, a sensor, a measurement display circuit and other components, and has the working principle that: guided wave radar operates at the speed of light and the operating time can be converted into a fill level signal by electronic components. The probe emits high-frequency pulses and is conducted along the cable type or rod type probe, and when the pulses meet the surface of the material, the pulses are reflected back and received by a receiver in the instrument and convert distance signals into level signals. The working principle of the guided wave radar level gauge shows that the antenna is an important part for transmitting and receiving electromagnetic waves and directly determines whether the radar level gauge can work normally.
In the prior art, a conventional guided wave radar sensor has a tetrafluoro cover and a tetrafluoro core cover fixed to an antenna core by an upper case and a lower case. The PTFE cover and the PTFE core sleeve are made of PTFE materials, and a conventional guided wave radar sensor can be sealed only by an O ring between the PTFE core sleeve and the lower shell under a high-pressure condition, and the O ring between the PTFE core sleeve and the antenna core is sealed, so that the pressure resistance is weak.
SUMMERY OF THE UTILITY MODEL
The present application provides a high voltage radar sensor to solve the above technical problems.
The technical scheme adopted by the application is as follows: a high-voltage radar sensor is characterized by comprising a shell, an antenna core arranged in the shell, an antenna sleeve arranged between the antenna core and the shell, a sealing cover arranged at the upper end of the antenna core in the shell and a locking nut arranged at the lower end of the antenna core and in threaded connection with the antenna core, wherein the shell comprises an upper shell, a lower shell in threaded connection with the upper shell and a first O-shaped sealing ring arranged at the threaded connection part of the lower shell and the upper shell, a through hole is formed in the upper shell, an antenna joint is arranged in the through hole, the top end of the antenna core penetrates through the sealing cover to be electrically connected with the antenna joint, a tightening opening is formed in the lower end of the lower shell, the antenna sleeve comprises a lower end cover matched with the tightening opening of the lower shell, an antenna core sleeve arranged on the lower end cover and a conical cover arranged at the upper end of the antenna core sleeve, and a first O-shaped, and a second O-shaped sealing ring is arranged between the lower shell and the antenna core sleeve, a third O-shaped sealing ring is arranged between the antenna core and the lower end rod, and a fourth O-shaped sealing ring is arranged between the antenna core and the antenna core sleeve.
Furthermore, the first O-shaped sealing ring, the second O-shaped sealing ring, the third O-shaped sealing ring, the fourth O-shaped sealing ring and the fifth O-shaped sealing ring are all made of fluororubber materials,
furthermore, the lower end cover is made of a tetrafluoro material.
Furthermore, the antenna core sleeve is made of PPS material.
Further, the cone cover is made of polysulfone resin material.
Further, the sealing cover is made of a fluororubber material.
The application has the advantages and positive effects that: according to the high-voltage radar sensor, the first O-shaped sealing ring is arranged at the threaded connection position of the upper shell and the lower shell, so that the sealing property of the connection position of the upper shell and the lower shell is improved; a second O-shaped sealing ring and a third O-shaped sealing ring are respectively arranged between the lower end cover and the antenna core sleeve as well as between the lower shell and the antenna core sleeve, so that the sealing property between the lower shell and the antenna sleeve is greatly improved; the antenna core is respectively provided with a fourth O-shaped sealing ring and a fifth O-shaped sealing ring between the antenna core and the lower end rod as well as between the antenna core and the antenna core sleeve, the sealing performance between the antenna core and the lower end rod as well as between the antenna core and the antenna core sleeve is greatly improved, the first O-shaped sealing ring, the second O-shaped sealing ring, the third O-shaped sealing ring, the fourth O-shaped sealing ring and the fifth O-shaped sealing ring are matched, the sealing performance of the radar sensor is greatly improved, the pressure resistance of the radar sensor is greatly improved, external high-pressure airflow is prevented from entering an external measurement display device connected with the radar sensor along the radar sensor, and electronic devices in the device are damaged.
In addition to the technical problems addressed by the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage radar sensor according to an embodiment of the present disclosure.
In the figure: 1, a shell; 110 an upper shell; 111 through holes; 112 an antenna terminal; 120 lower shell; 121 tightening the opening; 130 a first O-ring; 2 antenna cores; 3, an antenna sleeve; 310, a lower end cover; 320 an antenna core sleeve; 330 a conical cover; 4, sealing the cover; 5, locking the nut; 6 a first O-ring seal; 7 a second O-ring seal; 8, a third O-shaped sealing ring; 9 fourth O-shaped sealing ring
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, a high voltage radar sensor is characterized in that the high voltage radar sensor comprises a casing 1, an antenna core 2 arranged in the casing 1, an antenna sleeve 3 arranged between the antenna core 2 and the casing 1, a sealing cover 4 arranged at the upper end of the antenna core 2 in the casing 1, and a locking nut 5 arranged at the lower end of the antenna core 2 and in threaded connection with the antenna core 2, wherein the casing 1 comprises an upper casing 110, a lower casing 120 in threaded connection with the upper casing 110, and a first O-ring 130 arranged at the threaded connection between the lower casing 120 and the upper casing 110, a through hole 111 is arranged on the upper casing 110, an antenna joint 112 is arranged in the through hole 111, the top end of the antenna core 2 passes through the sealing cover 4 and is electrically connected with the antenna joint 112, a tightening port 121 is arranged at the lower end of the lower casing 120, the antenna sleeve 3 comprises a lower end cover 310 matched with the tightening port 121 of the lower casing 120, an antenna core sleeve 320 arranged on the lower end cover 310, and a cone-, a second O-ring 6 is arranged between the lower casing 120 and the lower end cap 310, a third O-ring 7 is arranged between the lower casing 120 and the antenna core sleeve 320, a fourth O-ring 8 is arranged between the antenna core 2 and the lower end rod, and a fifth O-ring 9 is arranged between the antenna core 2 and the antenna core sleeve 320.
In this embodiment, the housing 1 is provided with the upper housing 110 and the lower housing 120 which are connected through threads, and the threaded connection between the upper housing 110 and the lower housing 120 is provided with the first O-ring 130, so that the sealing property at the connection between the upper housing 110 and the lower housing 120 is improved; the upper shell 110 is provided with a through hole 111, an antenna joint 112 is arranged in the through hole 111, a sealing cover 4 is arranged at the upper end of an antenna core 2, the antenna core 2 passes through the sealing cover 4 and is connected with the antenna joint 112, the lower end of a lower shell 120 is provided with a tightening port 121, in the embodiment, the tightening port 121 is a cylindrical structure with a conical connecting port, the antenna sleeve 3 is provided with a lower end cover 310 matched with the tightening port 121, the lower end cover 310 and the tightening port 121 are matched to fix other structures of the antenna sleeve 3, namely an antenna core sleeve 320 and a conical cover 330, and the sealing cover 4 and the antenna core 2 are fixed in the shell 1, in the embodiment, a second O-shaped sealing ring 6 and a third O-shaped sealing ring 7 are respectively arranged between the lower end cover 310 and the antenna core sleeve 320 and the lower shell 120, so that the sealing; be equipped with fourth O shape sealing washer 8 and fifth O shape sealing washer 9 between antenna core 2 and lower extreme pole and the antenna core cover 320 respectively, the leakproofness between antenna core 2 and lower extreme pole and the antenna core cover 320 has been improved greatly, first O shape sealing washer 130, second O shape sealing washer 6, third O shape sealing washer 7, fourth O shape sealing washer 8 and fifth O shape sealing washer 9 cooperate, radar sensor's leakproofness has been improved greatly, and then radar sensor's pressure resistance has been improved greatly, avoid external high-pressure draught to follow radar sensor and get into the external measurement display device who links to each other with radar sensor, destroy electron device wherein.
In a preferred embodiment, the first O-ring 130, the second O-ring 6, the third O-ring 7, the fourth O-ring 8 and the fifth O-ring 9 are made of a fluororubber material.
In this embodiment, the first O-ring 130, the second O-ring 6, the third O-ring 7, the fourth O-ring 8, and the fifth O-ring 9 are all made of a fluororubber material, the fluororubber is a high-elasticity polymer material with reversible deformation, and has good wear resistance and high elasticity, and the first O-ring 130, the second O-ring 6, the third O-ring 7, the fourth O-ring 8, and the fifth O-ring 9 are all made of a fluororubber material, so that the sealing performance of the radar sensor is greatly improved.
In a preferred embodiment, the lower end cap 310 is made of a tetrafluoro material.
In a preferred embodiment, the antenna core housing 320 is made of PPS material.
In a preferred embodiment, the cone cover 330 is made of polysulfone resin material.
In a preferred embodiment, the sealing cover 4 is made of a fluororubber material.
The embodiments of the present application have been described in detail, but the description is only for the preferred embodiments of the present application and should not be construed as limiting the scope of the application. All equivalent changes and modifications made within the scope of the present application shall fall within the scope of the present application.
Claims (6)
1. The high-voltage radar sensor is characterized by comprising a shell (1), an antenna core (2) arranged in the shell (1), an antenna sleeve (3) arranged between the antenna core (2) and the shell (1), a sealing cover (4) arranged at the upper end of the antenna core (2) in the shell (1) and a locking nut (5) arranged at the lower end of the antenna core (2) and in threaded connection with the antenna core (2), wherein the shell (1) comprises an upper shell (110), a lower shell (120) in threaded connection with the upper shell (110) and a first O-shaped sealing ring (130) arranged at the threaded connection position of the lower shell (120) and the upper shell (110), a through hole (111) is formed in the upper shell (110), an antenna joint (112) is arranged in the through hole (111), and the top end of the antenna core (2) penetrates through the sealing cover (4) to be electrically connected with the antenna joint (112), the antenna is characterized in that a tightening opening (121) is formed in the lower end of the lower shell (120), the antenna sleeve (3) comprises a lower end cover (310) matched with the tightening opening (121) of the lower shell (120), an antenna core sleeve (320) arranged on the lower end cover (310) and a conical cover (330) arranged at the upper end of the antenna core sleeve (320), a second O-shaped sealing ring (6) is arranged between the lower shell (120) and the lower end cover (310), a third O-shaped sealing ring (7) is arranged between the lower shell (120) and the antenna core sleeve (320), a fourth O-shaped sealing ring (8) is arranged between the antenna core (2) and the lower end cover (310), and a fifth O-shaped sealing ring (9) is arranged between the antenna core (2) and the antenna core sleeve (320).
2. A high pressure radar sensor according to claim 1, characterized in that the first O-ring (130), the second O-ring (6), the third O-ring (7), the fourth O-ring (8) and the fifth O-ring (9) are made of a viton material.
3. A high pressure radar sensor according to claim 2, characterized in that the lower end cap (310) is made of tetrafluoro material.
4. A high-pressure radar sensor according to claim 3, characterized in that the antenna core housing (320) is made of PPS material.
5. A high pressure radar sensor according to claim 4, characterised in that the cone cover (330) is made of polysulfone resin material.
6. A high pressure radar sensor according to claim 5, characterized in that the sealing cover (4) is made of a fluoro-rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921206310.3U CN210141925U (en) | 2019-07-29 | 2019-07-29 | High-voltage radar sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921206310.3U CN210141925U (en) | 2019-07-29 | 2019-07-29 | High-voltage radar sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210141925U true CN210141925U (en) | 2020-03-13 |
Family
ID=69736012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921206310.3U Active CN210141925U (en) | 2019-07-29 | 2019-07-29 | High-voltage radar sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210141925U (en) |
-
2019
- 2019-07-29 CN CN201921206310.3U patent/CN210141925U/en active Active
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