Buckle splicing type north seeker

Abstract

The utility model discloses a buckle splicing type north seeker, which comprises a left-section radome, a middle-section radome, a right-section radome and a PCB (Printed Circuit Board), the left-section radome and the middle-section radome are clamped through a first female buckle and a first male buckle on the own structure, and the middle-section radome and the right-section radome are clamped through a second male buckle and a second female buckle on the own structure. The PCB is located in a cavity formed by connecting the left-section radome, the middle-section radome and the right-section radome, the north seeker is detachable in structure, the design enables the north seeker to serve as a single product when the north seeker is used as a whole, the length of the middle-section radome can be independently modified, and the north seeker is convenient to use. Therefore, the use of a product with a longer base line or a shorter base line is realized, and a user can select north seekers with different base line lengths according to own requirements, so that the north seeker can better adapt to application scenes with different precision and size constraints, repeated mold opening is avoided, and the production and manufacturing cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning and navigation, and particularly relates to a buckle-spliced north finder. Background Art

[0002] In order to identify directions more quickly and effectively, the global satellite navigation system is widely used in many industrial fields. Global satellite navigation system manufacturers usually produce corresponding products according to different customer requirements to play roles in different occasions.

[0003] At present, most north finders are of a closed integral type and cannot be disassembled. Their sizes are fixed, so they can only be applied to specific models of products, and the mold opening cost is relatively high, which is not conducive to the derivation of multiple sub-models. Summary of the Invention

[0004] In view of this, the utility model aims to overcome the above deficiencies in the prior art and proposes a buckle-spliced north finder. Through a detachable structural design, it can better adapt to application scenarios with different precision and size constraints, avoid multiple mold openings, and save production and manufacturing costs.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A buckle-spliced north finder includes a left-section radome, a right-section radome, a middle-section radome, and a PCB board;

[0007] A plurality of first female buckles are arranged on the outer wall of one side of the left-section radome;

[0008] A plurality of second female buckles are arranged on the outer wall of the right-section radome close to the first female buckles;

[0009] The middle-section radome is clamped between the left-section radome and the right-section radome. A plurality of first male buckles are arranged on the outer wall of the middle-section radome close to the left-section radome. After the middle-section radome is clamped with the first female buckles through the first male buckles, it is connected to the left-section radome; a plurality of second male buckles are arranged on the outer wall of the middle-section radome close to the right-section radome. After the middle-section radome is clamped with the second female buckles through the second male buckles, it is connected to the right-section radome;

[0010] The PCB board is located in the cavity formed after the connection of the left-section radome, the middle-section radome, and the right-section radome;

[0011] The PCB board adopts an integrated design. A GNSS receiving module, a gyroscope, and an STM32 signal processing unit are provided on the PCB board. The GNSS receiving module includes a ceramic antenna and a receiver, which are used to receive satellite signals and are connected to the STM32 signal processing unit through a serial port to achieve data transmission. The gyroscope is connected to the STM32 signal processing unit through a serial port to achieve data transmission.

[0012] Further, the PCB board further includes a plurality of first screw holes.

[0013] Further, the left antenna cover further includes a plurality of first nuts; the first nuts are located on the inner upper surface and the inner lower surface of the left antenna cover. After the PCB board is connected to the first nuts through screws passing through the first screw holes at the left end edge of the PCB board, it is fixedly connected to the left antenna cover.

[0014] Further, the right antenna cover further includes a plurality of second nuts. The second nuts are located on the inner upper surface and the inner lower surface of the right antenna cover. After the PCB board is connected to the second nuts through screws passing through the first screw holes at the right end edge of the PCB board, it is fixedly connected to the right antenna cover.

[0015] Further, the PCB board further includes at least one first pin, and the middle antenna cover further includes at least one first pin hole. The first pin is located in the middle of the PCB board, and the first pin hole is located in the middle part of the middle antenna cover. The PCB board is connected to the middle antenna cover through the first pin passing through the first pin hole.

[0016] Further, a first thread is provided at the lower end of the first pin, and the first thread is located on the outer surface of the first pin.

[0017] Further, the longitudinal section of the first female buckle is an isosceles right triangle.

[0018] Further, the longitudinal section of the second female buckle is an isosceles right triangle.

[0019] Further, the top end of the first male buckle is arc-shaped.

[0020] Further, the top end of the second male buckle is arc-shaped.

[0021] Compared with the prior art, the snap-together north-seeking instrument of the present utility model has the following advantages:

[0022] The utility model is detachable in structure. This design enables the north-seeking instrument to function as a single product during overall use, or allows for separate modification of the size of the middle antenna cover, thereby enabling the use of larger or smaller products. Users can select north-seeking instruments of different sizes according to their own needs, better adapting to different application scenarios, reducing production costs, saving resources, and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0024] Figure 1 is an exploded view of the whole of the present utility model;

[0025] Figure 2 is a top view of the whole of the present utility model;

[0026] Figure 3 is an overall view of the PCB board;

[0027] Figure 4 is an overall view of the left antenna cover;

[0028] Figure 5 is an overall view of the middle antenna cover;

[0029] Figure 6 is an overall view of the right antenna cover.

[0030] DESCRIPTION OF THE REFERENCE NUMERALS:

[0031] 1 - left antenna cover; 2 - right antenna cover; 3 - middle antenna cover; 4 - PCB board; 5 - first female buckle; 6 - second female buckle; 7 - first male buckle; 8 - second male buckle; 9 - first screw hole; 10 - first nut; 11 - second nut; 12 - first pin; 1 - first pin hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0035] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0036] As Figure 1-6 shown, a snap - splicing north - seeking instrument of the present utility model includes a left - section radome 1, a right - section radome 2, a middle - section radome 3, a PCB board 4, a first female buckle 5, a second female buckle 6, a first male buckle 7, a second male buckle 8, a first screw hole 9, a first nut 10, a second nut 11, a first pin 12, and a first pin hole 13. A plurality of first female buckles 5 are provided on the outer wall of one side of the left - section radome 1; a plurality of second female buckles 6 are provided on the outer wall of the right - section radome 2 near the first female buckle 5; the middle - section radome 3 is clamped between the left - section radome 1 and the right - section radome 2. A plurality of first male buckles 7 are provided on the outer wall of the middle - section radome 3 near the left - section radome 1. After the middle - section radome 3 is snap - connected to the first female buckle 5 through the first male buckle 7, it is connected to the left - section radome 1; a second male buckle 8 is provided on the outer wall of the middle - section radome 3 near the right - section radome 2. After the middle - section radome 3 is snap - connected to the second female buckle 6 through the second male buckle 8, it is connected to the right - section radome 2.

[0037] The connection of the left antenna cover 1, the middle antenna cover 3, and the right antenna cover 2 of the present utility model is achieved through the connection of the first male buckle 7 and the first female buckle 5, as well as the second male buckle 8 and the second female buckle 6. The use of male and female buckle connections makes the overall assembly and disassembly of the present utility model easy, improves production efficiency and use convenience, provides a certain degree of sealing, and can modify the size of the middle antenna cover 3, thereby realizing products with longer or shorter baselines, avoiding multiple mold openings, and saving production and manufacturing costs.

[0038] In some embodiments, the PCB board 4 is located inside the cavity formed after the connection of the left antenna cover 1, the middle antenna cover 3, and the right antenna cover 2.

[0039] Specifically, the PCB board 4 can be separated from the left antenna cover 1, the middle antenna cover 3, and the right antenna cover 2, which is convenient for disassembly, and thus is more conducive to the maintenance and technical upgrade of the PCB board 4.

[0040] In some embodiments, the PCB board 4 further includes: a plurality of first screw holes 9; the left antenna cover 1 includes: a plurality of first nuts 10; the first screw holes 9 are located at the edge of the left end of the PCB board 4, and the first nuts 10 are located on the inner upper and lower surfaces of the left antenna cover 1. After the PCB board 4 is connected to the first nuts 10 through screws passing through the first screw holes 9, it is fixedly connected to the left antenna cover 1.

[0041] The fixed connection of the PCB board 4 of the present utility model through screws passing through the first screw holes 9 and the first nuts 10 can make the connection between the PCB board 4 and the left antenna cover 1 stronger and more stable. Screw fixation can provide high strength and stability, and can be flexibly connected and adjusted, so that when the external environment changes, the measurement results of the present utility model are more stable.

[0042] In some embodiments, the PCB board 4 further includes: a plurality of first screw holes 9; the right antenna cover 2 includes: a plurality of second nuts 11; the first screw holes 9 are located at the edge of the right end of the PCB board 4, and the second nuts 11 are located on the inner upper and lower surfaces of the right antenna cover. After the PCB board 4 is connected to the second nuts 11 through screws passing through the first screw holes 9, it is fixedly connected to the right antenna cover 2.

[0043] The fixed connection of the PCB board 4 of the present utility model through screws passing through the first screw holes 9 and the second nuts 11 can make the connection between the PCB board 4 and the right antenna cover 2 stronger and more stable. Screw fixation can provide high strength and stability, and can be flexibly connected and adjusted, so that when the external environment changes, the measurement results of the present utility model are not interfered with.

[0044] In some embodiments, the PCB board 4 further includes: at least one first pin 12; the middle section antenna cover 3 includes: at least one first pin hole 13; the first pin 12 is located in the middle of the PCB board 4, and the first pin hole 13 is located in the middle of the middle section antenna cover 3. The PCB board 4 is connected to the middle section antenna cover 3 by passing the first pin 12 through the first pin hole 13.

[0045] In some embodiments, a first thread is provided at the lower end of the first pin 12, and the first thread is located on the outer surface of the first pin 12.

[0046] In some embodiments, the longitudinal section of the first female buckle 5 is an isosceles right triangle.

[0047] In some embodiments, the longitudinal section of the second female buckle 6 is an isosceles right triangle.

[0048] In some embodiments, the top end of the first male buckle 7 is arc-shaped.

[0049] In some embodiments, the top end of the second male buckle 7 is arc-shaped.

[0050] The utility model realizes the connection between the left section antenna cover 1 and the middle section antenna cover 3 through the first female buckle 5 and the first male buckle 7, realizes the connection between the middle section antenna cover 3 and the right section antenna cover 2 through the second male buckle 8 and the second female buckle 6, and places the PCB board 4 in the cavity formed by connecting the left section antenna cover 1, the middle section antenna cover 3, and the right section antenna cover 2. It is detachable in structure. This design enables the north-seeking instrument to act as a single product during overall use, and the size of the middle section antenna cover can also be modified separately, so as to realize the use of products with longer or shorter baselines. Users can choose to use north-seeking instruments with different baseline lengths according to their own needs, so as to better adapt to different application scenarios, reduce production costs, avoid multiple mold openings, save resources, and improve the user experience.

[0051] The PCB board 4 adopts an integrated design and integrates a GNSS receiving module, a gyroscope, and an STM32 signal processing unit. The GNSS receiving modules are all equipped with ceramic antennas and receivers and are connected through precise traces. Each receiving module independently receives satellite signals, and its receiver is connected to the STM32 signal processing unit through a serial port to achieve data transmission. At the same time, the gyroscope is also connected to the STM32 signal processing unit through a serial port to achieve data transmission. Among them, the GNSS receiving module, the gyroscope, and the STM32 signal processing unit are all implemented using existing products. Multiple GNSS receiving modules can be set to improve accuracy. The PCB board 4 of the present utility model receives satellite positioning and navigation data from the GNSS antenna through the GNSS receiver, processes it, and then sends it to the STM32 signal processing module. The attitude angle data is determined using the gyroscope and sent to the STM32 signal processing module. The STM32 signal processing module processes the received data to obtain the heading angle data, thereby achieving north seeking. The data processing processes used by each module on the PCB board of the present utility model all adopt existing technologies.

[0052] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A buckle-spliced north finder, characterized in that: It includes a left-section radome (1), a right-section radome (2), a middle-section radome (3), and a PCB board (4); On the outer wall of one side of the left-section radome (1), a plurality of first female fasteners (5) are provided; On the outer wall of the right-section radome (2) near the first female fastener (5), a plurality of second female fasteners (6) are provided; The middle-section radome (3) is clamped between the left-section radome (1) and the right-section radome (2). On the outer wall of the middle-section radome (3) near the left-section radome (1), a plurality of first male fasteners (7) are provided. After the middle-section radome (3) is snap-connected to the first female fastener (5) through the first male fastener (7), it is connected to the left-section radome (1); on the outer wall of the middle-section radome (3) near the right-section radome (2), a second male fastener (8) is provided. After the middle-section radome (3) is snap-connected to the second female fastener (6) through the second male fastener (8), it is connected to the right-section radome (2); The PCB board (4) is located in the cavity formed after the connection of the left-section radome (1), the middle-section radome (3), and the right-section radome (2); The PCB (4) board adopts an integrated design. The PCB board (4) is provided with a GNSS receiving module, a gyroscope, and an STM32 signal processing unit. The GNSS receiving module includes a ceramic antenna and a receiver, which is used to receive satellite signals and is connected to the STM32 signal processing unit through a serial port to realize data transmission. The gyroscope is connected to the STM32 signal processing unit through a serial port to realize data transmission.

2. The snap-together north finder according to claim 1, characterized in that: The PCB board (4) further includes a plurality of first screw holes (9).

3. The snap-together north-seeking instrument according to claim 2, characterized in that: The left-section radome (1) further includes a plurality of first nuts (10); the first nuts (10) are located on the upper surface and the lower surface of the interior of the left-section radome (1). After the PCB board (4) is connected to the first nuts (10) through screws passing through the first screw holes (9) at the left end edge of the PCB board (4), it is fixedly connected to the left-section radome (1).

4. The snap-together north finder according to claim 2, characterized in that: The right-section radome (2) further includes a plurality of second nuts (11), the second nuts (11) are located on the upper surface and the lower surface of the interior of the right-section radome (2). After the PCB board (4) is connected to the second nuts (11) through screws passing through the first screw holes (9) at the right end edge of the PCB board (4), it is fixedly connected to the right-section radome (2).

5. A snap-together north finder according to claim 1, characterized in that: The PCB board (4) further includes at least one first pin (12), and the middle-section radome (3) further includes at least one first pin hole (13). The first pin (12) is located in the middle of the PCB board (4), and the first pin hole (13) is located in the middle part of the middle-section radome (3). The PCB board (4) is connected to the middle-section radome (3) through the first pin (12) passing through the first pin hole (13).

6. The snap-together north finder according to claim 5, characterized in that: The lower end of the first pin (12) is provided with a first thread, and the first thread is located on the outer surface of the first pin (12).

7. The snap-together north finder according to claim 1, wherein: The longitudinal section of the first female buckle (5) is an isosceles right triangle.

8. A snap-together north finder according to claim 1, characterized in that: The longitudinal section of the second female buckle (6) is an isosceles right triangle.

9. The snap-connecting type north finder according to claim 1, wherein: The top end of the first male buckle (7) is arc-shaped.

10. A snap-together north-seeking instrument according to claim 1, characterized in that: The top end of the second male buckle (8) is arc-shaped.

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