Rod-shaped navigation mark structure

Abstract

The utility model discloses a rod-shaped navigation mark structure, which comprises a shell, a circuit board arranged in the shell and an antenna arranged outside the shell and connected with the circuit board, the shell comprises a front half section and a rear half section which are connected together, the front half section and the rear half section are both cylindrical parts, the circuit board is inserted in the front half section, and the antenna is arranged outside the shell and connected with the circuit board. The circuit board is parallel to the axis of the front half section. The circuit board of the design can be accommodated in the shell. Since the circuit board is parallel to the axial lead of the front half section and is different from the circuit board perpendicular to the axial lead of the shell in the prior art, the shell of the navigation mark can be designed into a slender rod shape, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the field of navigation technology, in particular to a coordinate positioning device. Background Art

[0002] Navigational aids are important facilities to ensure the safety and efficiency of ship navigation. They are usually set up in navigable waters or near them to mark the locations of waterways, anchorages, shoals and other obstacles. They are artificial signs that help guide ships, locate and mark obstacles and issue warnings.

[0003] Traditionally, determining a ship's navigational direction relies on shore-based lighthouses, buoys, and lightships, providing navigational indicators. However, due to the unpredictable weather conditions at sea, the functionality of traditional visual navigation aids can be significantly impacted by fog, storms, and heavy rain. With the continuous advancement of navigation technology, shore-based AIS systems and ship-based AIS have become increasingly popular. This technology overcomes the visual limitations of traditional navigation lights and, through the dynamic release of navigation aid information, can quickly transmit navigation aid information to nearby vessels, thereby providing better services for safe navigation. AIS stands for Automatic Identification System, or AIS for short.

[0004] Virtual buoys are established entirely based on AIS. AIS-based virtual buoys refer to buoys equipped with AIS equipment. The buoys operate in much the same way as AIS installed on merchant ships, operating on a point-to-point basis. When the AIS equipment is in operation, merchant ships within the signal coverage area receive navigation signals from ships. The ships then rely on their own systems to display this information on the computer control system terminal, ultimately ensuring safe navigation. Virtual buoys are similar to large merchant ships sailing at sea, except that they are often set in designated locations. Their signal distribution function enables fast and accurate data transmission, ensuring safe navigation.

[0005] Physical virtual beacons are called "simulated beacons". They actually exist, but the AIS stations that can be used to send beacon information are often set up in locations far away from the beacons.

[0006] The monitoring simulation beacon in the simulation beacon sends telegrams from an AIS station far away from the beacon, so there is a communication link between the beacon and the AIS. The beacon often includes a GNSS receiver, processor and non-AIS data link. The position and status of the beacon are confirmed through the communication link between the beacon and the AIS.

[0007] Patent document CN218334279U discloses a conical navigational beacon structure, comprising a base and a top cover mounted on the base. The base is provided with a circuit board, the circuit board is provided with a large shielding plate, the large shielding plate is provided with an antenna mount, the antenna mount includes a small shielding plate, the small shielding plate and the large shielding plate have a height difference, and the antenna is mounted on the small shielding plate; the top cover is conical in shape and covers the antenna. The antenna transmits and receives signals, and to prevent the antenna from affecting the electronic components on the circuit board, a large shielding plate is provided on the circuit board to shield the radiation generated by the antenna's transceiver signals. The circuit board of the navigational beacon is placed flat in the base, and the entire navigational beacon is conical, with a small top and a large bottom. The circuit board is located at the maximum diameter of the cone, and the antenna is located at the top of the cone. Utility Model Content

[0008] The technical problem solved by the utility model is that the circuit board inside the navigation mark in the prior art is placed flat, the navigation mark is tapered as a whole, and occupies a large space.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions: a rod-shaped navigation mark structure, including a shell, a circuit board arranged in the shell, and an antenna arranged outside the shell and connected to the circuit board. The shell includes a front half and a rear half connected together, and the front half and the rear half are both cylindrical parts. The circuit board is inserted in the front half, and the circuit board is parallel to the axis of the front half.

[0010] The circuit board of the present invention is designed in a rectangular shape, with a width smaller than the inner diameter of the front half of the housing. This allows the circuit board to be accommodated within the housing. Because the circuit board is parallel to the axis of the front half, unlike the prior art where the circuit board is perpendicular to the axis of the housing, the housing of the navigation mark can be designed as a slender rod, reducing the space occupied.

[0011] The front section has a shielding layer within its inner cavity. A threaded hole is defined at the front end of the front section, and the antenna has a first externally threaded section. This first externally threaded section engages with the threaded hole, passes through the shielding layer, and extends into the inner cavity of the front section, contacting a conductive portion of the circuit board. This electrically connects the conductive portion of the circuit board to the first externally threaded section of the antenna, facilitating assembly and disassembly of the antenna.

[0012] A cylindrical frame is provided inside the shell, the rear end of the circuit board is inserted into the frame, and the front end of the circuit board is inserted into the front half of the shell. The rear half connected to the front half presses against the frame, and the frame presses the circuit board between the front half and the frame, so that the circuit board and the antenna are in stable contact.

[0013] The front half of the shell is provided with a first plug-in slot, and the inner cavity of the frame is provided with a second plug-in slot. The front end of the circuit board is plugged into the first plug-in slot, and the rear end of the circuit board is plugged into the second plug-in slot, so that the circuit board is positioned.

[0014] The front half of the housing is equipped with several positioning ribs that abut against the front end of the frame. These ribs are parallel to the axis of the front half and are distributed circumferentially along the front half. Under pressure from the rear half of the housing, the front end of the frame presses against the rear ends of all the positioning ribs, thus compacting the frame within the front half of the housing.

[0015] A wire guide is mounted on the back of the frame, fitted with a first seal. The rear half of the housing presses the seal against the back of the frame. The wire guide has external threads that screw into screw holes on the back of the frame. The wire guide has a center hole. The wires connected to the circuit board pass through the center hole of the wire guide and enter the rear half of the housing, then exit the housing through the rear end of the rear half.

[0016] The outer diameter of the first seal is equal to the inner diameter of the front half of the shell. The front end surface of the rear half connected to the front half of the shell presses the first seal against the back of the frame. The first seal seals the circuit board in the front half of the shell.

[0017] The wire guide is equipped with a seal retaining groove, and the back of the frame is provided with a ring-shaped seal positioning groove. The ring-shaped portion of the first seal fits into this seal positioning groove. The first seal has a center hole, through which it is inserted into the wire guide and fits into the seal retaining groove. Simultaneously, the forward-protruding ring-shaped portion of the first seal fits into the seal positioning groove. This effectively positions the first seal during assembly.

[0018] The rear half of the housing features a second externally threaded section, which is threaded into the front half. The rear end of the rear half is equipped with a wrench flat. During assembly, the front end of the second externally threaded section presses against the first seal on the back of the frame, ensuring a stable position for the first seal, frame, and circuit board. The assembler uses a wrench to rotate the rear half of the housing until it fits snugly with the front half.

[0019] The tail end of the rear half of the shell is matched with a second sealing member, which is provided with a wire hole. The wire connected to the circuit board passes through the rear half of the shell and passes out of the shell through the wire hole of the second sealing member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 is a schematic diagram of a pole-shaped navigation mark;

[0022] FIG2 is an exploded view of FIG1 ;

[0023] Figure 3 is an exploded view of a pole-shaped navigation mark;

[0024] FIG4 is an exploded view of the local structure in FIG3 ;

[0025] FIG5 is a schematic diagram of FIG4 observed from the rear;

[0026] FIG6 is a schematic diagram showing the front half of the housing when viewed from the rear.

[0027] Explanation of symbols in the figure:

[0028] 10. Circuit board;

[0029] 20. Antenna; 21. First external thread segment;

[0030] 30. Front half of the housing; 31. Shielding layer; 32. Threaded hole; 33. First insertion slot; 34. Positioning rib;

[0031] 40. Rear half of the housing; 41. Second external threaded section; 42. Wrench flats;

[0032] 50. Frame; 51. Second insertion slot; 52. Sealing member positioning slot;

[0033] 60. Wire guide; 61. Sealing element slot;

[0034] 70. First sealing member; 71. Ring-shaped portion of the first sealing member;

[0035] 80. Second sealing member. DETAILED DESCRIPTION

[0036] In conjunction with Figures 1 to 3, a rod-shaped navigation mark structure includes a shell, a circuit board 10 arranged in the shell, and an antenna 20 arranged outside the shell and connected to the circuit board. The shell includes a front half 30 and a rear half 40 connected together. The front half and the rear half are both cylindrical parts. The circuit board is inserted in the front half, and the circuit board is parallel to the axis of the front half.

[0037] The circuit board 10 is designed to be rectangular, with a width smaller than the inner diameter of the front half of the housing, so that the circuit board 10 can be accommodated in the housing. Since the circuit board is parallel to the axis of the front half 30, the housing of the navigation mark can be designed to be slender and rod-shaped, reducing the space occupied.

[0038] A shielding layer 31 is provided within the inner cavity of the front half 30. A threaded hole 32 is defined at the front end of the front half. The antenna is provided with a first externally threaded section 21. This first externally threaded section 21 engages with the threaded hole, passes through the shielding layer, and penetrates the inner cavity of the front half 30, contacting the conductive portion of the circuit board 10. This electrical connection is achieved between the conductive portion of the circuit board and the first externally threaded section 21 of the antenna, facilitating assembly and disassembly of the antenna 20.

[0039] A cylindrical frame 50 is provided in the shell, the rear end of the circuit board 10 is inserted into the frame, and the front end of the circuit board is inserted into the front half 30 of the shell. The rear half 40 connected to the front half presses against the frame, and the frame presses the circuit board between the front half and the frame, so that the circuit board 10 and the antenna 20 are in stable contact.

[0040] 4 to 6 , a first insertion slot 33 is defined within the interior of the front half 30 of the housing, and a second insertion slot 51 is defined within the interior of the frame 50. The front end of the circuit board 10 is inserted into the first insertion slot 33, and the rear end of the circuit board is inserted into the second insertion slot 51, thereby securing the circuit board 10 in place.

[0041] The front half 30 of the housing is provided with a plurality of positioning ribs 34, which are capable of abutting against the front end of the frame 50. The positioning ribs 34 are parallel to the axis of the front half 30 of the housing and are distributed along the circumference of the front half 30. Under the pressure of the rear half 40 of the housing, the front end of the frame 50 presses against the rear ends of all the positioning ribs 34, thus pressing the frame 50 tightly into the front half 30 of the housing.

[0042] In conjunction with Figures 3 and 4, a wire-passing member 60 is installed on the back of the frame 50, and a first seal 70 is provided on the wire-passing member. The rear half 40 of the housing can press the first seal against the back of the frame. The wire-passing member 60 has an external thread that is screwed into a screw hole on the back of the frame 50. The wire-passing member 60 has a center hole. The wire connected to the circuit board 10 enters the rear half 40 of the housing through the center hole of the wire-passing member and then exits the housing through the tail of the rear half 40. The outer diameter of the first seal 70 is equal to the inner diameter of the front half 30 of the housing. The front end face of the rear half 40 connected to the front half of the housing presses the first seal 70 against the back of the frame 50. The first seal seals the circuit board 10 in the front half 30 of the housing.

[0043] As shown in Figure 4, a seal slot 61 is provided on the wire-passing member 60, and a ring-shaped seal positioning groove 52 is provided on the back of the frame 50, and the ring-shaped portion 71 of the first seal fits in the seal positioning groove. The first seal 70 is provided with a center hole, and the first seal is sleeved on the wire-passing member 60 through the center hole and fits in the seal slot 61. At the same time, the ring-shaped portion 71 of the first seal protruding forward fits in the seal positioning groove 52. During the assembly process, the first seal 70 is effectively positioned.

[0044] As shown in Figures 2 and 4, the rear half 40 of the housing is equipped with a second externally threaded section 41, which is threaded into the front half 30. The rear end of the rear half is provided with a wrench flat 42. During assembly, the front end of the second externally threaded section 41 presses against the first seal 70 on the back of the frame 50, ensuring a stable positioning of the first seal, frame 50, and circuit board 10. The assembler uses a wrench to rotate the rear half 40 of the housing until it fits tightly against the front half 30.

[0045] The tail end of the rear half 40 of the housing is fitted with a second sealing member 80 , which is provided with a wire hole. The wires connected to the circuit board 10 pass through the rear half 40 of the housing and exit the housing through the wire hole of the second sealing member 80 .

[0046] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation method and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. A rod-shaped navigation mark structure, comprising a housing, a circuit board (10) disposed in the housing, and an antenna (20) disposed outside the housing and connected to the circuit board, wherein the housing comprises a front half (30) and a rear half (40) connected together, and is characterized in that: The front half section and the back half section are both cylindrical parts. The circuit board is inserted into the front half section, and the axis lines of the circuit board and the front half section are parallel.

2. The rod-shaped navigation mark structure according to claim 1, characterized in that: A shielding layer (31) is provided in the inner cavity of the front half section (30), a threaded hole (32) is provided at the front end of the front half section, and the antenna is provided with a first external thread section (21), which cooperates with the threaded hole and passes through the shielding layer, penetrates into the inner cavity of the front half section (30), and contacts the conductive part on the circuit board (10).

3. The rod-shaped navigation mark structure according to claim 1, characterized in that: A cylindrical frame (50) is provided in the shell, the rear end of the circuit board (10) is inserted into the frame, the front end of the circuit board is inserted into the front half section (30) of the shell, the rear half section (40) connected to the front half section presses against the frame, and the frame presses the circuit board between the front half section and the frame.

4. The rod-shaped navigation mark structure according to claim 3, characterized in that: A first plug-in slot (33) is provided in the inner cavity of the front half section (30) of the shell, and a second plug-in slot (51) is provided in the inner cavity of the frame (50).

5. The rod-shaped navigation mark structure according to claim 3, characterized in that: A plurality of positioning ribs (34) are provided in the inner cavity of the front half section (30) of the shell body, and the positioning ribs can abut against the front end surface of the frame (50).

6. The rod-shaped navigation mark structure according to claim 3, characterized in that: A wire-passing member (60) is installed on the back of the frame (50), and a first sealing member (70) is matched with the wire-passing member. The rear half (40) of the shell can press the first sealing member against the back of the frame.

7. The rod-shaped navigation mark structure according to claim 6, characterized in that: A sealing member slot (61) is provided on the wire passing member (60), and a ring-shaped sealing member positioning slot (52) is provided on the back of the frame (50), and the ring-shaped portion (71) of the first sealing member is fitted in the sealing member positioning slot.

8. The rod-shaped navigation mark structure according to claim 1, characterized in that: The rear half section (40) of the shell is provided with a second external thread section (41), the second external thread section is screwed into the front half section (30), and the tail of the rear half section is provided with a wrench flat surface (42).

9. The rod-shaped navigation mark structure according to claim 1, characterized in that: The tail end of the rear half (40) of the shell is matched with a second sealing member (80), and the second sealing member is provided with a wire hole.

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