CN112462439A - Geomagnetic sensor - Google Patents
Geomagnetic sensor Download PDFInfo
- Publication number
- CN112462439A CN112462439A CN202011143082.7A CN202011143082A CN112462439A CN 112462439 A CN112462439 A CN 112462439A CN 202011143082 A CN202011143082 A CN 202011143082A CN 112462439 A CN112462439 A CN 112462439A
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- China
- Prior art keywords
- mounting
- cavity
- groove
- movable shell
- geomagnetic sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/40—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for measuring magnetic field characteristics of the earth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention relates to a sensor used in a parking lot, in particular to a geomagnetic sensor, which comprises: the mounting structure comprises a fixed shell, a first screw and a second screw, wherein the top of the fixed shell is provided with a mounting groove and a mounting cavity, the mounting cavity is positioned at the bottom of the mounting groove, and the top of the mounting cavity is provided with a first internal thread; the top of the movable shell is provided with a positioning ring and a dismounting hole or a dismounting groove, the outer circular surface of the positioning ring is provided with a first sealing groove, the bottom of the movable shell is provided with a detection cavity, the outer circular surface of the movable shell is provided with a first external thread, the movable shell is arranged in the mounting cavity, and the positioning ring is positioned in the mounting groove; the first sealing ring is arranged in the first sealing groove; the printed board is arranged in the detection cavity of the movable shell and positioned at the top of the movable shell, and the printed board is provided with a geomagnetic detection module and a wireless communication module; the battery is located the detection intracavity to with printed board electrical connection. This earth magnetism sensor need not the wiring from taking battery and wireless communication module, only need during the installation the trompil fixed can, simple to operate to waterproof performance is good.
Description
Technical Field
The invention relates to a sensor used in a parking lot, in particular to a geomagnetic sensor.
Background
The parking lot adopts geomagnetic sensors to detect whether vehicles exist in the parking spaces. Because geomagnetic sensor inlays in the bottom surface, consequently if do not set up the circuit in advance, when the geomagnetic sensor is installed to the later stage, need rewiring, and wiring work load is big, need be at the bottom surface fluting, destroys ground.
Disclosure of Invention
In order to solve the problems, the invention provides a geomagnetic sensor with a bottom surface only needing to be provided with a hole, no wiring, convenient installation and good waterproof performance, and the specific technical scheme is as follows:
a geomagnetic sensor, comprising: the mounting structure comprises a fixed shell, a first screw and a second screw, wherein the top of the fixed shell is provided with a mounting groove and a mounting cavity, the mounting cavity is positioned at the bottom of the mounting groove, and the top of the mounting cavity is provided with a first internal thread; the movable shell is provided with a positioning ring and a dismounting hole or a dismounting groove at the top, a first sealing groove is formed in the outer circular surface of the positioning ring, a detection cavity is formed in the bottom of the movable shell, a first external thread is formed in the outer circular surface of the movable shell, the movable shell is installed in the installation cavity, and the positioning ring is located in the installation groove; a first seal ring mounted within the first seal groove; the printed board is arranged in the detection cavity of the movable shell and positioned at the top of the movable shell, and a geomagnetic detection module and a wireless communication module are arranged on the printed board; the battery is located in the detection cavity and is electrically connected with the printed board.
Through adopting above-mentioned technical scheme, during the installation, at ground trompil, then fix the casing downthehole with cement or solid glue, make the top surface and the ground parallel and level of fixed casing simultaneously, or be not higher than ground.
Because the movable shell is connected with the fixed shell through the threads, the movable shell can be rotated through the dismounting hole or the dismounting groove, so that the movable shell is screwed or loosened, the first sealing ring is sealed with the side wall of the mounting groove, and water is not easy to enter the mounting cavity.
Because the battery and the wireless communication module are adopted, wiring is not needed, and the geomagnetic sensor can be conveniently installed in the existing parking lot. When the battery is not charged, the movable shell can be detached to replace the battery, and the installation and the use are very convenient.
Furthermore, the excircle face of fixed casing is equipped with the locating plate, two are no less than to the locating plate, and wind the equidistant setting of axis of fixed casing.
Through adopting above-mentioned technical scheme, the locating plate prevents that fixed casing from taking place to rotate when dismouting activity casing.
Further, a second sealing groove is formed in the bottom of the mounting groove; the sealing structure further comprises a second sealing ring, and the second sealing ring is fixed in the second sealing groove.
Through adopting above-mentioned technical scheme, adopt two sealing washers to effectively guarantee waterproof performance.
Furthermore, the bottom of the detection cavity is provided with a reinforcing rib.
Through adopting above-mentioned technical scheme, the strengthening rib can improve the intensity at activity casing top, avoids the fracture after the atress.
Furthermore, the bottom of the detection cavity is provided with a plurality of mounting columns, and the printed board is fixed on the mounting columns.
Through adopting above-mentioned technical scheme, the installation of the convenient printing board of erection column to make earth magnetism detection module be close ground, guarantee the accuracy that detects.
Furthermore, the detection device also comprises a bottom cover plate, wherein the bottom cover plate is fixed at the bottom of the movable shell and used for sealing the detection cavity.
Through adopting above-mentioned technical scheme, the end cover can make things convenient for the fixed of battery simultaneously owing to sealed detection chamber, avoids the battery to drop, does not influence movable housing's installation.
Further, still include the third sealing washer, the third sealing washer is installed between bottom cover plate and the movable housing.
Through adopting above-mentioned technical scheme, the third sealing washer realizes detecting the sealed of chamber.
Further, still include the spring, the spring mounting is in between the bottom plate with the bottom of installation cavity.
Through adopting above-mentioned technical scheme, the spring can be when dismantling movable housing with the ejecting installation cavity of movable housing, make things convenient for movable housing to sink into and do not take out well in the installation cavity.
Furthermore, the bottom of the installation cavity is provided with a fixing hole, and one end of the spring is located in the fixing hole.
Through adopting above-mentioned technical scheme, the fixed orifices is convenient for the fixed of spring.
Further, the battery is a lithium battery.
By adopting the technical scheme, the lithium battery has large capacity, can work for a long time, and reduces the replacement time.
Compared with the prior art, the invention has the following beneficial effects:
the battery and the wireless communication module of the geomagnetic sensor do not need wiring, only need to be opened and fixed during installation, and are convenient to install and good in waterproof performance.
Drawings
FIG. 1 is a schematic of the structure of a geomagnetic sensor;
FIG. 2 is a cross-sectional view of a geomagnetic sensor;
FIG. 3 is a schematic structural view of a stationary housing;
FIG. 4 is a bottom view of the stationary housing;
FIG. 5 is a front view of the movable housing;
fig. 6 is a sectional view taken along line a-a in fig. 5.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 6, a geomagnetic sensor includes: the mounting structure comprises a fixed shell 1, wherein the top of the fixed shell 1 is provided with a mounting groove 13 and a mounting cavity 12, the mounting cavity 12 is positioned at the bottom of the mounting groove 13, and the top of the mounting cavity 12 is provided with a first internal thread; the device comprises a movable shell 2, wherein the top of the movable shell 2 is provided with a positioning ring 21 and a dismounting hole 25 or a dismounting groove, the outer circular surface of the positioning ring 21 is provided with a first sealing groove 22, the bottom of the movable shell 2 is provided with a detection cavity 29, the outer circular surface of the movable shell 2 is provided with a first external thread, the movable shell 2 is arranged in an installation cavity 12, and the positioning ring 21 is positioned in an installation groove 13; a first seal ring mounted in the first seal groove 22; the printed board 3 is arranged in the detection cavity 29 of the movable shell 2 and is positioned at the top of the movable shell 2, and the printed board 3 is provided with a geomagnetic detection module 41 and a wireless communication module 42; and a battery 5, wherein the battery 5 is positioned in the detection cavity 29 and is electrically connected with the printed board 3.
When the fixing device is installed, a hole is formed in the ground, then the fixing shell 1 is fixed in the hole by cement or solid glue, and the top surface of the fixing shell 1 is flush with the ground or not higher than the ground.
Because pass through threaded connection between activity casing 2 and the fixed casing 1, can make activity casing 2 screw up or loosen through dismouting hole 25 or the rotatory activity casing 2 in dismouting groove, and first sealing washer realizes sealed with the lateral wall of mounting groove 13, makes in water is difficult for entering into installation cavity 12.
The dismounting holes 25 are symmetrically arranged, and the clamping spring pincers can be inserted into the dismounting holes 25 to rotate the movable shell 2. The dismounting groove is a straight groove or a cross groove and is dismounted by a straight screwdriver or a cross screwdriver.
Due to the adoption of the battery 5 and the wireless communication module 42, wiring is not required, and the installation of the geomagnetic sensor in the existing parking lot is greatly facilitated. When the battery 5 is not charged, the movable shell 2 can be detached to replace the battery 5, and the installation and the use are very convenient.
The bottom of the detection cavity 29 is provided with a plurality of mounting posts 23, and the printed board 3 is fixed on the mounting posts 23. The printed board 3 is fixed to the mounting post 23 by screws.
The mounting post 23 facilitates mounting of the printed board 3, and the geomagnetic detection module 41 is made to approach the ground, thereby ensuring the accuracy of detection.
Example two
On the basis of the first embodiment, the positioning plates 11 are arranged on the outer circumferential surface of the fixed shell 1, and the number of the positioning plates 11 is not less than two and is arranged around the axis of the fixed shell 1 at equal intervals.
The positioning plate 11 prevents the fixed housing 1 from rotating when the movable housing 2 is disassembled.
Third embodiment on the basis of any one of the above embodiments, the bottom of the mounting groove 13 is provided with a second sealing groove 14; and a second sealing ring fixed in the second sealing groove 14.
Two sealing rings are adopted to effectively ensure the waterproof performance.
Example four
On the basis of any one of the above embodiments, the bottom of the detection cavity 29 is provided with a reinforcing rib 24.
The reinforcing ribs 24 can improve the strength of the top of the movable shell 2 and avoid cracking after being stressed.
EXAMPLE five
On the basis of any one of the above embodiments, the detection device further comprises a bottom cover plate 6, and the bottom cover plate 6 is fixed at the bottom of the movable shell 2 and used for sealing the detection cavity 29.
The bottom cover plate 6 can be used for sealing the detection cavity 29 and facilitating the fixation of the battery 5, so that the battery 5 is prevented from falling, and the installation of the movable shell 2 is not influenced.
The bottom cover plate 6 is connected with the movable shell 2 through screw threads.
EXAMPLE six
On the basis of the fifth embodiment, the sealing device further comprises a third sealing ring, and the third sealing ring is installed between the bottom cover plate 6 and the movable shell 2.
The third sealing ring effects the sealing of the detection chamber 29.
EXAMPLE seven
On the basis of the fifth embodiment or the sixth embodiment, the spring is further included, and the spring is installed between the bottom cover plate 6 and the bottom of the installation cavity 12.
The spring can be when dismantling movable housing 2 with the ejecting installation cavity 12 of movable housing 2, make things convenient for movable housing 2 to sink in installation cavity 12 and do not take out well.
The bottom of the mounting cavity 12 is provided with a fixing hole 15, and one end of the spring is positioned in the fixing hole 15.
The fixing holes 15 facilitate the fixing of the spring.
Example eight
On the basis of any of the above embodiments, the battery 5 is a lithium battery. The lithium battery has large capacity and can work for a long time, and the replacement time is reduced. The lithium battery is connected with the printed board 3 through the connector, is convenient to disassemble and assemble, can directly replace the fully charged lithium battery with the uncharged lithium battery, and does not need to be charged on site.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.
Claims (10)
1. A geomagnetic sensor, comprising:
the mounting structure comprises a fixed shell, a first screw and a second screw, wherein the top of the fixed shell is provided with a mounting groove and a mounting cavity, the mounting cavity is positioned at the bottom of the mounting groove, and the top of the mounting cavity is provided with a first internal thread;
the movable shell is provided with a positioning ring and a dismounting hole or a dismounting groove at the top, a first sealing groove is formed in the outer circular surface of the positioning ring, a detection cavity is formed in the bottom of the movable shell, a first external thread is formed in the outer circular surface of the movable shell, the movable shell is installed in the installation cavity, and the positioning ring is located in the installation groove;
a first seal ring mounted within the first seal groove;
the printed board is arranged in the detection cavity of the movable shell and positioned at the top of the movable shell, and a geomagnetic detection module and a wireless communication module are arranged on the printed board;
the battery is located in the detection cavity and is electrically connected with the printed board.
2. A geomagnetic sensor according to claim 1,
the outer disc of fixed casing is equipped with the locating plate, two are no less than to the locating plate, and wind the equidistant setting of axis of fixed casing.
3. A geomagnetic sensor according to claim 1,
the bottom of the mounting groove is provided with a second sealing groove;
the sealing structure further comprises a second sealing ring, and the second sealing ring is fixed in the second sealing groove.
4. A geomagnetic sensor according to claim 1,
and the bottom of the detection cavity is provided with a reinforcing rib.
5. A geomagnetic sensor according to claim 1,
the bottom of the detection cavity is provided with a plurality of mounting columns, and the printed board is fixed on the mounting columns.
6. A geomagnetic sensor according to claim 1,
the detection device also comprises a bottom cover plate, wherein the bottom cover plate is fixed at the bottom of the movable shell and used for sealing the detection cavity.
7. A geomagnetic sensor according to claim 6,
still include the third sealing washer, the third sealing washer is installed bottom cover plate with between the activity casing.
8. A geomagnetic sensor according to claim 6,
still include the spring, the spring mounting bottom cover plate with between the bottom of installation cavity.
9. A geomagnetic sensor according to claim 8,
the bottom of installation cavity is equipped with the fixed orifices, the one end of spring is located the fixed orifices.
10. A geomagnetic sensor according to claim 1,
the battery is a lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143082.7A CN112462439A (en) | 2020-10-23 | 2020-10-23 | Geomagnetic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011143082.7A CN112462439A (en) | 2020-10-23 | 2020-10-23 | Geomagnetic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112462439A true CN112462439A (en) | 2021-03-09 |
Family
ID=74834255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011143082.7A Pending CN112462439A (en) | 2020-10-23 | 2020-10-23 | Geomagnetic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112462439A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115424454A (en) * | 2022-08-25 | 2022-12-02 | 福建省城市大脑建设有限公司 | Geomagnetic field for detecting vehicle parking |
-
2020
- 2020-10-23 CN CN202011143082.7A patent/CN112462439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115424454A (en) * | 2022-08-25 | 2022-12-02 | 福建省城市大脑建设有限公司 | Geomagnetic field for detecting vehicle parking |
| CN115424454B (en) * | 2022-08-25 | 2024-01-26 | 福建省城市大脑建设有限公司 | Geomagnetism for detecting parking of vehicle |
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