Lightning protection GNSS choke antenna

Abstract

The present application discloses a lightning protection type GNSS choke antenna, and relates to the technical field of choke antenna. The present application includes a choke antenna body, the bottom of the choke antenna body is fixedly connected with a fixing plate, the bottom of the fixing plate is evenly fixedly connected with three lightning arresters, the three lightning arresters are arranged in a circle, and the bottom of the three lightning arresters is fixedly connected with a grounding copper plate, the bottom of the grounding copper plate is fixedly connected with a triangular support frame, the top of the fixing plate is fixedly connected with a lightning rod, the bottom of the grounding copper plate passes through the triangular support frame, and an adjustment slide is provided. The present application drives one end of the grounding needle into the ground by rotating the driving mechanism, and then sets the lightning arrester to quickly connect the fixed plate and the grounding copper plate when encountering thunder and lightning weather, so that the lightning is quickly connected to the ground along the lightning rod and the fixed plate, the lightning arrester, the grounding copper plate, the adjustment slider, and the grounding needle, and the lightning current is discharged into the earth, thereby limiting the overvoltage and protecting the choke antenna body.

Description

Technical Field

[0001] The present application relates to the technical field of choke ring antennas, and in particular to a lightning protection type GNSS choke ring antenna. Background Art

[0002] With the rapid development of global navigation satellite system (GNSS) technology, the demand for high-precision positioning is growing in the fields of geological disaster monitoring, infrastructure safety assessment, autonomous driving and drone navigation. GNSS choke ring antennas, with their excellent phase center stability and multipath suppression capabilities, have become the core components in these high-precision positioning applications.

[0003] Traditional GNSS choke antennas are mostly fixed on tripods and achieve high-precision positioning by receiving and processing satellite signals from the GNSS system. These signals contain the location and time information of the satellite. After receiving this information, the antenna uses computer algorithms to calculate the user's precise location and time, thereby providing stable and reliable positioning services in various applications.

[0004] However, in practical applications, GNSS choke ring antennas are often deployed in the wild or in open areas, which are often accompanied by complex electromagnetic conditions and harsh climates. Especially in thunderstorm weather, the tripod-supported antenna is located at a high ground, which is easily damaged by lightning, affecting the accuracy and reliability of positioning data. Summary of the invention

[0005] The purpose of this application is to solve the problem that the antenna is easily damaged by lightning in thunderstorm weather, which affects the accuracy and reliability of positioning data. This application provides a lightning protection GNSS choke antenna.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A lightning protection GNSS choke antenna comprises a choke antenna body, a fixing plate fixedly connected to the bottom of the choke antenna body, three lightning arresters evenly fixedly connected to the bottom of the fixing plate, the three lightning arresters are arranged in a circle, and a grounding copper plate fixedly connected to the bottom of the three lightning arresters, a triangular support frame fixedly connected to the bottom of the grounding copper plate, a lightning rod fixedly connected to the top of the fixing plate, the bottom of the grounding copper plate passes through the triangular support frame and is provided with an adjustment slot, an adjustment slider is slidably connected to the inside of the adjustment slot, a grounding pin is fixedly connected to the bottom of the adjustment slider, a driving mechanism for driving the grounding pin to move along the length direction of the adjustment slot is installed at one end of the grounding copper plate, and a guide component for guiding the grounding pin to move along the length direction of the adjustment slot is installed inside the adjustment slot.

[0008] By adopting the above technical scheme, by setting the coordinated use of the guiding assembly and the driving mechanism, when the triangular support frame is unfolded to fix the choke antenna body in the installation area, one end of the grounding pin is driven to be inserted into the ground by rotating the driving mechanism, and the adjusting slider, the grounding copper plate, the lightning arrester, the fixing plate and the lightning rod are connected, and then the lightning arrester is set to quickly connect the fixing plate and the grounding copper plate when encountering thunder and lightning weather, so that the lightning is quickly connected to the ground along the lightning rod and the fixing plate, the lightning arrester, the grounding copper plate, the adjusting slider, and the grounding pin, and the lightning current is discharged into the earth, thereby playing a role in limiting overvoltage and protecting the choke antenna body. After the lightning passes, the lightning arrester quickly returns to the state of being disconnected from the ground, thereby facilitating the lightning protection of the choke antenna body in thunder and lightning weather, and improving the accuracy and reliability of the positioning data of the choke antenna body.

[0009] Furthermore, the driving mechanism includes a driving screw sleeve rotatably connected to the bottom of the grounding copper plate, one end of the grounding pin is provided with a driving thread groove adapted to the driving screw sleeve, and one end of the grounding copper plate is installed with a driving component for driving the driving screw sleeve to rotate.

[0010] By adopting the above technical solution and setting up the coordinated use of the driving component and the guiding component, the rotating driving component can drive the driving screw sleeve to form a threaded connection with one end of the grounding pin through the driving thread groove, and at the same time cooperate with the guiding component to drive the grounding pin to move along the length direction of the adjusting slot, so as to facilitate the adjustment of the length of the grounding pin to push out of the adjusting slot, thereby facilitating the guiding of the grounding pin to be inserted into the ground, and effectively improving the applicability of the device.

[0011] Furthermore, the driving assembly includes a bevel gear 1 fixedly connected to one end of the driving screw sleeve, one end of the grounding copper plate is rotatably connected to a bevel gear 2 meshing with the bevel gear 1, and one end of the bevel gear 2 is fixedly connected to a driving handle.

[0012] By adopting the above technical solution, by setting the coordinated use of bevel gear 2 and bevel gear 1, rotating the driving handle can drive bevel gear 2 to engage with bevel gear 1, and bevel gear 1 can drive the driving screw sleeve to rotate, thereby effectively improving the practicality of the device.

[0013] Furthermore, the guide assembly includes a plurality of guide fins evenly fixedly connected to one end of the adjusting slider, the plurality of guide fins are arranged in a circular shape, and a guide slot adapted to the guide fins is provided on the inner side of the adjusting slot.

[0014] By adopting the above technical scheme, by setting the coordinated use of the guide fin and the guide slot, while driving the grounding needle to move along the length direction of the adjusting slot, the grounding needle drives the adjusting slider to drive the guide fin to form a conflict with the inner wall of the guide slot and move along the length direction of the guide slot, thereby facilitating the axial guidance of the grounding needle. At the same time, the guide fin is arranged to fit the inner wall of the guide slot, which effectively increases the contact area between the adjusting slider and the grounding copper plate, thereby effectively increasing the electrical connection area between the grounding needle and the grounding copper plate, thereby improving the conductive efficiency of the grounding needle and improving the practicability of the device.

[0015] Furthermore, one end of the grounding pin is fixedly connected to a grounding support grid.

[0016] By adopting the above technical solution, by setting up the grounding support grid and the grounding pin for use in conjunction, the contact area between the grounding pin and the ground is effectively increased, the conductive area between the grounding pin and the ground is further increased, and the stability of the device is improved.

[0017] Furthermore, a protective cover is fixedly connected to the top of the choke antenna body.

[0018] By adopting the above technical solution and providing a protective cover, it is convenient to provide shielding protection for the top of the choke antenna body, thereby effectively improving the protection effect of the choke antenna body and improving the practicability of the device.

[0019] Furthermore, a ceramic isolation ring is fixedly connected to the top of the protective cover, one end of the lightning rod passes through the ceramic isolation ring and is fixedly connected to a flange fixing plate adapted to the ceramic isolation ring.

[0020] By adopting the above technical scheme, by setting up the ceramic isolation ring and the flange fixing plate for use, it is convenient to use the ceramic isolation ring to isolate the contact between the protective cover and the lightning rod, so that when lightning passes through the lightning rod, the protective cover and the lightning rod release surface are protected by the ceramic isolation ring, reducing the damage to the protective cover caused by lightning passing through the inside of the lightning rod, and effectively improving the safety of the device.

[0021] Furthermore, the surfaces of the grounding pin and the tripod support frame are coated with an organic silicon waterproof coating.

[0022] By adopting the above technical solution and providing an organic silicon waterproof coating, the corrosion resistance of the surfaces of the tripod support frame and the grounding pin is effectively improved, thereby extending the service life of the device.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. By setting up the coordinated use of the guiding assembly and the driving mechanism, when the triangular support frame is unfolded to fix the choke antenna body in the installation area, one end of the grounding pin is driven into the ground by rotating the driving mechanism, and the adjusting slider, the grounding copper plate, the lightning arrester, the fixing plate and the lightning rod are connected, and then the lightning arrester is set to quickly connect the fixing plate and the grounding copper plate when encountering thunder and lightning weather, so that the lightning is quickly connected to the ground along the lightning rod and the fixing plate, the lightning arrester, the grounding copper plate, the adjusting slider, and the grounding pin, and the lightning current is discharged into the earth, thereby limiting the overvoltage and protecting the choke antenna body. After the lightning passes, the lightning arrester quickly returns to the state of being disconnected from the ground, thereby facilitating the lightning protection of the choke antenna body in thunder and lightning weather, and improving the accuracy and reliability of the positioning data of the choke antenna body.

[0025] 2. By setting up the coordinated use of the driving component and the guiding component, the rotating driving component can drive the driving screw sleeve to form a threaded connection with one end of the grounding pin through the driving thread groove, and at the same time cooperate with the guiding component to drive the grounding pin to move along the length direction of the adjusting slot, so as to facilitate the adjustment of the length of the grounding pin to push out of the adjusting slot, thereby facilitating the guiding of the grounding pin to be inserted into the ground, and effectively improving the applicability of the device.

[0026] 3. By setting the coordinated use of the guide fin and the guide slot, when the grounding needle is driven to move along the length direction of the adjusting slot, the grounding needle drives the adjusting slider to drive the guide fin to form a conflict with the inner wall of the guide slot and move along the length direction of the guide slot, thereby facilitating the axial guidance of the grounding needle. At the same time, the guide fin is arranged to fit the inner wall of the guide slot, which effectively increases the contact area between the adjusting slider and the grounding copper plate, thereby effectively increasing the electrical connection area between the grounding needle and the grounding copper plate, thereby improving the conductive efficiency of the grounding needle and improving the practicability of the device.

[0027] 4. By setting up the ceramic isolation ring and the flange fixing plate, it is convenient to use the ceramic isolation ring to isolate the contact between the protective cover and the lightning rod, so that when lightning passes through the lightning rod, the ceramic isolation ring can protect the protective cover and the lightning rod release surface, reduce the damage to the protective cover when lightning passes through the inside of the lightning rod, and effectively improve the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0029] Figure 2 It is a side cross-sectional view of the device body in this application.

[0030] Figure 3 It is an exploded view of the internal structure of the regulating chute in this application.

[0031] Figure 4 It is a schematic diagram of the connection relationship between the ceramic isolation ring and the flange fixing plate in the present application.

[0032] Description of reference numerals:

[0033] 1. Choke antenna body; 2. Fixing plate; 3. Lightning arrester; 4. Grounding copper plate; 5. Triangular support frame; 6. Lightning rod; 7. Adjustment slide; 8. Adjustment slider; 9. Grounding pin; 10. Drive screw sleeve; 11. Drive thread groove; 12. Bevel gear one; 13. Bevel gear two; 14. Drive handle; 15. Guide fin; 16. Guide slide; 17. Grounding support grid; 18. Protective cover; 19. Ceramic isolation ring; 20. Flange fixing plate. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiments of the present application disclose a lightning protection type GNSS choke antenna.

[0036] Reference Figure 1-Figure 3 , a lightning protection type GNSS choke antenna, comprising a choke antenna body 1, a fixing plate 2 is fixedly connected to the bottom of the choke antenna body 1, three lightning arresters 3 are evenly fixedly connected to the bottom of the fixing plate 2, the three lightning arresters 3 are arranged in a circle, and a grounding copper plate 4 is fixedly connected to the bottom of the three lightning arresters 3, a triangular support frame 5 is fixedly connected to the bottom of the grounding copper plate 4, a lightning rod 6 is fixedly connected to the top of the fixing plate 2, the bottom of the grounding copper plate 4 passes through the triangular support frame 5, and an adjusting slot 7 is opened, an adjusting slider 8 is slidably connected inside the adjusting slot 7, a grounding pin 9 is fixedly connected to the bottom of the adjusting slider 8, a driving mechanism for driving the grounding pin 9 to move along the length direction of the adjusting slot 7 is installed at one end of the grounding copper plate 4, and a guiding component for guiding the grounding pin 9 to move along the length direction of the adjusting slot 7 is installed inside the adjusting slot 7;

[0037] The driving mechanism includes a driving screw sleeve 10 rotatably connected to the bottom of the grounding copper plate 4, one end of the grounding pin 9 is provided with a driving thread groove 11 adapted to the driving screw sleeve 10, and one end of the grounding copper plate 4 is installed with a driving component for driving the driving screw sleeve 10 to rotate;

[0038] Furthermore, the driving assembly includes a bevel gear 12 fixedly connected to one end of the driving screw sleeve 10, one end of the grounding copper plate 4 is rotatably connected to a bevel gear 2 13 meshing with the bevel gear 12, and one end of the bevel gear 2 13 is fixedly connected to a driving handle 14;

[0039] Moreover, the guide assembly includes a plurality of guide fins 15 evenly fixedly connected to one end of the adjusting slider 8, the plurality of guide fins 15 are arranged in a circular shape, and a guide slot 16 adapted to the guide fins 15 is provided on the inner side of the adjusting slot 7;

[0040] Furthermore, one end of the grounding pin 9 is fixedly connected to a grounding support grid 17 .

[0041] When in use, first set the lightning arrester 3 and the choke antenna body 1 to be installed in parallel, then fix the choke antenna body 1 in the area to be installed by unfolding the triangular support frame 5, and then manually rotate the driving handle 14 so that the driving handle 14 drives the bevel gear 2 13 to rotate, and drives the bevel gear 2 13 to engage with the bevel gear 1 12, and at the same time, the bevel gear 1 12 drives the driving screw sleeve 10 to rotate, and the driving screw sleeve 10 forms a threaded connection with one end of the grounding pin 9 through the driving thread groove 11, so that the driving screw sleeve 10 pushes the grounding pin 9 to drive the adjusting slider 8 to drive the guide fin 15 to move along the length direction of the guide slide 16, and when the driving grounding pin 9 moves downward along the length direction of the adjusting slide 7, the grounding pin 9 is inserted downward along the length direction of the adjusting slide 7 into the underground of the area to be installed, so that the lightning rod 6 cooperates with the fixing plate 2, the lightning arrester 3, the grounding copper plate 4, the adjusting slider 8, and the grounding pin 9 to form a connection with the ground;

[0042] When the choke antenna body 1 operates at a safe working voltage, the lightning arrester 3 presents a high resistance state, so that the lightning arrester 3 is blocked from the ground. Then, when encountering thunder and lightning weather, one end of the lightning rod 6 is set to pass through the choke antenna body 1, and a lightning high point is formed above the choke antenna body 1, so that the lightning is guided along the lightning rod 6 and the fixing plate 2 to the inside of the lightning arrester 3. At this time, the lightning arrester 3 presents a low resistance, and is quickly connected to the ground through the grounding copper plate 4, the adjusting slider 8, and the grounding needle 9, so that the lightning current is discharged into the earth, thereby limiting the overvoltage and protecting the choke antenna body 1. After the thunder and lightning pass, the lightning arrester 3 quickly returns to the state of being blocked from the ground, so as to realize the lightning protection of the choke antenna body 1 in thunder and lightning weather, and improve the accuracy and reliability of the positioning data of the choke antenna body 1.

[0043] While driving the grounding needle 9 to drive the adjusting slider 8 to move along the length direction of the adjusting slot 7, the contact area between the adjusting slider 8 and the grounding copper plate 4 is effectively increased by setting the cooperation of the guide fin 15 and the guide slot 16, thereby increasing the electrical connection area between the grounding needle 9 and the grounding copper plate 4, and further effectively improving the grounding and conductive effect of the grounding needle 9. At the same time, when the bottom of the grounding needle 9 is driven to be inserted into the ground along the length direction of the adjusting slot 7, the grounding needle 9 drives the grounding support grid 17 to form a conflict with the ground, thereby effectively increasing the contact area between the grounding needle 9 and the ground when grounding and conducting through the grounding needle 9, and further improving the grounding and conductive efficiency and stability of the grounding needle 9.

[0044] Reference Figure 2 and Figure 4 A protective cover 18 is fixedly connected to the top of the choke antenna body 1;

[0045] Among them, a ceramic isolation ring 19 is fixedly connected to the top of the protective cover 18, one end of the lightning rod 6 passes through the ceramic isolation ring 19, and is fixedly connected to a flange fixing plate 20 adapted to the ceramic isolation ring 19.

[0046] When in use, first, the protective cover 18 is manually pulled to drive the ceramic isolation ring 19 to cover the top of the choke antenna body 1 and fixedly connected to the choke antenna body 1. Then, when one end of the lightning rod 6 is pulled through the choke antenna body 1 and fixedly connected with the fixing plate 2, one end of the lightning rod 6 drives the flange fixing plate 20 to form a conflict with the top of the ceramic isolation ring 19, and at the same time, the end of the lightning rod 6 passing through the protective cover 18 is fitted with the ceramic isolation ring 19. Then, the flange fixing plate 20 and the ceramic isolation ring 19 are fixedly connected by using fixing bolts, so that the protective cover 18 is used to wrap the top of the choke antenna body 1 for protection. At the same time, the ceramic isolation ring 19 is set to isolate the direct contact between the lightning rod 6 and the protective cover 18, thereby reducing the damage to the protective cover 18 when lightning passes through the inside of the lightning rod 6, and effectively improving the safety of the device.

[0047] Reference Figure 1 and Figure 2 The surfaces of the grounding pin 9 and the tripod support frame 5 are coated with a silicone waterproof coating.

[0048] When in use, a silicone waterproof coating is coated on the surface of the grounding pin 9 and the triangular support frame 5, so that a waterproof protective layer is formed on the surface of the grounding pin 9 and the triangular support frame 5, which effectively reduces the erosion of rainwater on the surface of the triangular support frame 5 and the grounding pin 9, improves the rust resistance of the surface of the triangular support frame 5 and the grounding pin 9, and extends the service life of the device.

[0049] The implementation principle of the lightning protection GNSS choke antenna of this embodiment is as follows: first, the protective cover 18 is manually pulled to drive the ceramic isolation ring 19 to be covered on the top of the choke antenna body 1 and fixedly connected to the choke antenna body 1, and then when one end of the lightning rod 6 is pulled through the choke antenna body 1 and is fixedly connected to the fixing plate 2, one end of the lightning rod 6 drives the flange fixing plate 20 to form a conflict with the top of the ceramic isolation ring 19, and at the same time, one end of the lightning rod 6 passes through the protective cover 18 to fit the ceramic isolation ring 19, and then the flange fixing plate 20 is fixedly connected to the ceramic isolation ring 19 by using fixing bolts;

[0050] Then, the lightning arrester 3 and the choke antenna body 1 are set in a parallel installation state, and the choke antenna body 1 is fixedly supported in the area to be installed by unfolding the triangular support frame 5, and then the driving handle 14 is manually turned to drive the bevel gear 2 13 to engage with the bevel gear 1 12, and at the same time, the bevel gear 1 12 drives the driving screw sleeve 10 to form a threaded connection with one end of the grounding pin 9 through the driving thread groove 11, so that the driving screw sleeve 10 pushes the grounding pin 9 to drive the adjusting slider 8 to drive the guide fin 15 to drive the grounding pin 9 to move downward along the length direction of the guide slide groove 16, and the grounding pin 9 is inserted downward into the ground in the area to be installed along the length direction of the adjusting slide groove 7;

[0051] Then, when the choke antenna body 1 operates at a safe working voltage, the lightning arrester 3 presents a high resistance state, so that the lightning arrester 3 is blocked from the ground. Then, when encountering thunder and lightning weather, one end of the lightning rod 6 is set to pass through the choke antenna body 1, and a lightning high point is formed above the choke antenna body 1, so that the lightning is guided to the inside of the lightning arrester 3 along the lightning rod 6 and the fixing plate 2. At this time, the lightning arrester 3 presents a low resistance, and is quickly connected to the ground through the grounding copper plate 4, the adjusting slider 8, and the grounding needle 9, so that the lightning current is discharged into the earth, thereby limiting the overvoltage and protecting the choke antenna body 1. After the thunder and lightning passes, the lightning arrester 3 quickly returns to the state of being blocked from the ground.

[0052] While driving the grounding needle 9 to drive the adjusting slider 8 to move along the length direction of the adjusting slot 7, the contact area between the adjusting slider 8 and the grounding copper plate 4 is effectively increased by setting the cooperation of the guide fin 15 and the guide slot 16, thereby increasing the electrical connection area between the grounding needle 9 and the grounding copper plate 4, and further effectively improving the grounding and conductive effect of the grounding needle 9. At the same time, when the bottom of the grounding needle 9 is driven to be inserted into the ground along the length direction of the adjusting slot 7, the grounding needle 9 drives the grounding support grid 17 to form a conflict with the ground, thereby effectively increasing the contact area between the grounding needle 9 and the ground when grounding and conductivity are achieved through the grounding needle 9.

Claims

1. A lightning protection GNSS choke ring antenna, comprising a choke ring antenna body (1), characterized in that: The bottom of the choke antenna body (1) is fixedly connected to a fixing plate (2), the bottom of the fixing plate (2) is evenly fixedly connected to three lightning arresters (3), the three lightning arresters (3) are arranged in a circular shape, and the bottoms of the three lightning arresters (3) are fixedly connected to a grounding copper plate (4), the bottom of the grounding copper plate (4) is fixedly connected to a triangular support frame (5), the top of the fixing plate (2) is fixedly connected to a lightning rod (6), the bottom of the grounding copper plate (4) passes through the triangular support frame (5), and is provided with an adjustment slot (7), the inside of the adjustment slot (7) is slidably connected to an adjustment slider (8), the bottom of the adjustment slider (8) is fixedly connected to a grounding pin (9), one end of the grounding copper plate (4) is equipped with a driving mechanism for driving the grounding pin (9) to move along the length direction of the adjustment slot (7), and the inside of the adjustment slot (7) is equipped with a guide component for guiding the grounding pin (9) to move along the length direction of the adjustment slot (7).

2. The lightning protection GNSS choke antenna according to claim 1, characterized in that: The driving mechanism comprises a driving screw sleeve (10) rotatably connected to the bottom of a grounding copper plate (4); one end of the grounding pin (9) is provided with a driving thread groove (11) adapted to the driving screw sleeve (10); and one end of the grounding copper plate (4) is provided with a driving assembly for driving the driving screw sleeve (10) to rotate.

3. The lightning protection GNSS choke antenna according to claim 2, characterized in that: The driving assembly comprises a bevel gear 1 (12) fixedly connected to one end of the driving screw sleeve (10); one end of the grounding copper plate (4) is rotatably connected to a bevel gear 2 (13) meshing with the bevel gear 1 (12); one end of the bevel gear 2 (13) is fixedly connected to a driving handle (14).

4. The lightning protection GNSS choke antenna according to claim 1, characterized in that: The guide assembly comprises a plurality of guide fins (15) uniformly fixedly connected to one end of the adjusting slider (8), the plurality of guide fins (15) being arranged in a circular shape, and a guide slide groove (16) adapted to the guide fins (15) is provided on the inner side of the adjusting slide groove (7).

5. The lightning protection GNSS choke antenna according to claim 1, characterized in that: One end of the grounding pin (9) is fixedly connected to a grounding support grid (17).

6. The lightning protection GNSS choke antenna according to claim 1, characterized in that: A protective cover (18) is fixedly connected to the top of the choke antenna body (1).

7. The lightning protection GNSS choke antenna according to claim 6, characterized in that: A ceramic isolation ring (19) is fixedly connected to the top of the protective cover (18); one end of the lightning rod (6) passes through the ceramic isolation ring (19) and is fixedly connected to a flange fixing plate (20) adapted to the ceramic isolation ring (19).

8. The lightning protection GNSS choke antenna according to claim 1, characterized in that: The surfaces of the grounding pin (9) and the triangular support frame (5) are coated with an organic silicon waterproof coating.

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