Multi-angle dynamic scanning type 3D radar imaging material level instrument

Abstract

The utility model relates to the technical field of 3D radar imaging material level instruments, and discloses a multi-angle dynamic scanning type 3D radar imaging material level instrument which comprises a shell assembly which comprises a shell base cover, a shell bottom cover arranged at the bottom of the shell base cover, a meter head fixedly installed on the top of the shell base cover and an upper cover fixedly installed on the top of the meter head. And a waterproof and dustproof mounting cavity is formed in the shell assembly. According to the multi-angle dynamic scanning type 3D radar imaging material level instrument, a stepping motor drives a gear to drive three sets of medium gears and transmission shaft gears which are distributed in a 120-degree mode to conduct synchronous transmission, a worm shaft drives a worm to be meshed with a worm gear, reciprocating type mechanical scanning of the movable radar module is achieved, meanwhile, static detection of the four fixed radar modules is matched, and the multi-angle dynamic scanning type 3D radar imaging material level instrument is achieved. A dynamic and static complementary 3D radar imaging system is formed, tempered glass protects the display screen and ensures that data are visible, and the plastic base disc and the stainless steel disc are combined with the sealing ring to achieve waterproof wave transmission.

Description

Technical Field

[0001] This utility model relates to the field of 3D radar imaging level instrument technology, specifically a multi-angle dynamic scanning 3D radar imaging level instrument. Background Technology

[0002] A 3D radar imaging level gauge is a device that uses radar technology to create three-dimensional spatial images to accurately measure and monitor the position, shape, and changes of objects. It generates a three-dimensional image of the target area by emitting radio electromagnetic waves and receiving the reflected signals. Widely used in industrial automation, environmental monitoring, and security surveillance, this technology is adaptable to adverse weather conditions such as fog, rain, and snow, and provides stable and reliable detection capabilities under harsh working conditions such as high dust and high moisture content.

[0003] However, traditional 3D radar imaging equipment focuses on a single scanning mode (dynamic scanning or static detection only), which makes it difficult to meet the needs of different application scenarios at the same time. In addition, traditional radar equipment has problems such as complex structure, high cost and high energy consumption due to the need for multiple motors to drive it. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multi-angle dynamic scanning 3D radar imaging level gauge, comprising:

[0007] The housing assembly includes a housing base cover, a housing bottom cover disposed at the bottom of the housing base cover, a meter head fixedly installed at the top of the housing base cover, and a top cover fixedly installed at the top of the meter head. The housing assembly forms an installation cavity inside that can be used for waterproofing and dustproofing.

[0008] The drive assembly includes a stepper motor disposed in the inner cavity of the meter head, a drive gear fixedly connected to the output shaft of the stepper motor, a gear set meshing with the outside of the drive gear, a worm shaft disposed in the inner cavity of the bottom cover of the housing, a worm disposed at the bottom of the worm shaft, and a worm wheel meshing with the outside of the worm.

[0009] The movable radar module assembly, located on the outside of the worm gear, includes a movable radar module, a radar lens, a module bracket, and a lens bracket. The movable radar module assembly is driven by the meshing of the worm gear and worm, and is used to perform reciprocating mechanical scanning within a range from vertically downward to inward rotation of 60°.

[0010] The fixed radar module kit for static multi-point detection includes three fixed radar modules offset by 6° and one fixed radar module that is centered and illuminates vertically downwards, located inside the cavity of the housing bottom cover, as well as a radar beam-concentrating radome located on one side of the cavity of the housing bottom cover.

[0011] As a further embodiment of this utility model: the gear set includes a medium gear and a transmission shaft gear, which are evenly distributed on the same plane circumference and are 120° apart, and are used to realize the synchronous transmission of three axes driven by a single motor.

[0012] As a further improvement of this utility model: a plastic base plate is provided at the bottom of the housing cover. The plastic base plate is a radar module mounting plate on which all radar modules are mounted. A stainless steel plate is fixedly connected to the bottom of the plastic base plate to strengthen and fix the plastic base plate. Sealing rings are provided at the connection points of the stainless steel plate, the plastic base plate and the housing cover to achieve waterproof sealing.

[0013] As a further embodiment of this utility model: a complete circuit board is fixedly installed in the inner cavity of the meter head for power conversion, stepper motor driving, radar signal processing, data calculation and signal input and output. The top of the upper cover is provided with tempered glass. The complete circuit board also includes a display screen, which is located inside the meter head and displays data through the tempered glass.

[0014] As a further improvement of this utility model: the top of the housing base cover is provided with a fall prevention lifting ring, and the housing base cover and the mounting cavity are provided with temperature sensors for monitoring the external ambient temperature of the housing assembly and the internal temperature of the mounting cavity.

[0015] As a further improvement of this utility model: a cable outlet is provided on one side of the meter head, and a grounding screw and grounding mark are provided on one side of the top of the housing bottom cover for cable laying and safe grounding.

[0016] As a further improvement of this utility model: a POM material base plate is provided at the bottom of the inner cavity of the shell bottom cover, which serves as a bottom waterproof cover to prevent dust from entering and ensure radar wave penetration. A base plate pressure ring is snapped onto the top of the base plate to fix the base plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] A stepper motor drives three sets of intermediate gears and transmission shaft gears distributed at 120° to each other for synchronous transmission. This causes the worm shaft to drive the worm and worm wheel to mesh, realizing the reciprocating mechanical scanning of the movable radar module. At the same time, it cooperates with the static detection of four fixed radar modules to form a dynamic and static complementary 3D radar imaging system. Tempered glass protects the display screen and ensures data visibility. The plastic base plate and stainless steel plate combined with the sealing ring achieve waterproof and wave-transparent operation. The anti-fall lifting ring enhances installation safety. Temperature sensors monitor the internal temperature and external ambient temperature in real time. The complete circuit board integrates radar signal processing and calculation data to achieve high-precision, blind-spot-free three-dimensional imaging and real-time monitoring of materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a multi-angle dynamic scanning 3D radar imaging level gauge.

[0020] Figure 2 A cross-sectional view of a structure in a multi-angle dynamic scanning 3D radar imaging level gauge;

[0021] Figure 3 This is a schematic diagram of a partial explosion of the stepper motor structure in a multi-angle dynamic scanning 3D radar imaging level gauge.

[0022] In the diagram: 1. Housing base cover; 2. Housing bottom cover; 3. Meter head; 4. Top cover; 5. Cable outlet; 6. Grounding screw; 7. Grounding mark; 8. Temperature sensor; 9. Fall protection ring; 10. Tempered glass; 11. Display screen; 12. Complete circuit board; 13. Stepper motor; 14. Drive gear; 15. Medium gear; 16. Sealing ring; 17. Stainless steel disc; 18. Plastic base disc; 19. Base plate; 20. Base plate pressure ring; 21. Worm gear; 22. Worm; 23. Worm shaft; 24. Fixed radar module; 25. Radar lens; 26. Module bracket; 27. Lens bracket; 28. Radar radome; 29. ​​Drive shaft gear; 30. Movable radar module. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Please see Figure 1-3 This is an embodiment of the present invention, which provides a multi-angle dynamic scanning 3D radar imaging level gauge, comprising:

[0028] The housing assembly includes a housing base cover 1, a housing bottom cover 2 disposed at the bottom of the housing base cover 1, a meter head 3 fixedly installed at the top of the housing base cover 1, and a top cover 4 fixedly installed at the top of the meter head 3. The housing assembly forms an installation cavity inside that can be used for waterproofing and dustproofing.

[0029] The drive assembly includes a stepper motor 13 disposed in the inner cavity of the meter head 3, a drive gear 14 fixedly connected to the output shaft of the stepper motor 13, a gear set meshing with the outside of the drive gear 14, a worm shaft 23 disposed in the inner cavity of the housing bottom cover 2, a worm 22 disposed at the bottom of the worm shaft 23, and a worm wheel 21 meshing with the outside of the worm 22.

[0030] The movable radar module assembly, located outside the worm gear 21, includes a movable radar module 30, a radar lens 25, a module bracket 26, and a lens bracket 27. The movable radar module assembly is driven by the meshing of the worm gear 21 and the worm 22, and is used for reciprocating mechanical scanning within a range from vertically downward to inward rotation of 60°.

[0031] The fixed radar module kit for static multi-point detection includes three fixed radar modules 24 offset by 6° and one fixed radar module that is centered and illuminates vertically downwards, located inside the cavity of the housing bottom cover 2, and a radar radome 28 located on one side of the cavity of the housing bottom cover 2.

[0032] Specifically, the gear set includes a medium gear 15 and a transmission shaft gear 29, which are evenly distributed on the same plane circumference and are 120° apart, and are used to realize the synchronous transmission of three axes driven by a single motor.

[0033] Furthermore, by using a single stepper motor 13 to drive three sets of gears to operate synchronously, the system energy consumption and structural complexity are significantly reduced. At the same time, the 120° evenly distributed layout ensures the balance of power transmission, enabling the three worm shafts 23 to synchronously and accurately drive the movable radar module 30, achieving scanning motion without phase difference.

[0034] Specifically, a plastic base plate 18 is provided at the bottom of the housing bottom cover 2. The plastic base plate 18 is a radar module mounting plate on which all radar modules are mounted. A stainless steel plate 17 is fixedly connected to the bottom of the plastic base plate 18 to reinforce and fix the plastic base plate 18. A sealing ring 16 is provided at the connection between the stainless steel plate 17, the plastic base plate 18 and the housing bottom cover 2 to achieve waterproof sealing.

[0035] Furthermore, the stainless steel disc 17 provides structural support and enhances corrosion resistance, while the plastic-based disc 18 ensures efficient penetration of the radar beam. The two together form a double waterproof barrier through the sealing ring 16, which not only ensures the transmission quality of the radar signal but also effectively prevents external moisture and dust from entering the installation cavity, thus extending the service life of the equipment.

[0036] Specifically, a complete set of circuit boards 12 is fixedly installed in the inner cavity of the meter head 3 for power conversion, stepper motor drive, radar signal processing, data calculation and signal input and output. The top of the upper cover 4 is provided with tempered glass 10. The complete set of circuit boards 12 also includes a display screen 11, which is set in the meter head 3 and displays data through the tempered glass 10.

[0037] Furthermore, the integrated circuit board 12 protects the display screen 11 through tempered glass 10, enabling data visualization and operation interaction. Its multi-functional design simplifies internal wiring and improves signal processing efficiency. At the same time, the explosion-proof characteristics of tempered glass 10 enhance the safety of the equipment in industrial environments.

[0038] Specifically, the top of the housing base cover 1 is provided with a fall protection ring 9, and the housing base cover 1 and the mounting cavity are provided with a temperature sensor 8 for monitoring the external ambient temperature of the housing assembly and the internal temperature of the mounting cavity.

[0039] Furthermore, the fall arrestor ring 9 facilitates high-altitude installation and fixation, preventing accidental falls of the equipment, while the temperature sensor 8 monitors external and internal temperature changes in real time and provides timely warnings of overheating risks. Together, they ensure the stable operation of the equipment under complex working conditions.

[0040] Specifically, a cable outlet 5 is provided on one side of the meter head 3, and a grounding screw 6 and a grounding mark 7 are provided on one side of the top of the housing bottom cover 2 for cable laying and safe grounding.

[0041] Furthermore, the cable routing layout at outlet 5 has been optimized to avoid messy tangling, and the grounding screw 6 and grounding mark 7 clearly indicate the grounding point, effectively eliminating static electricity and electromagnetic interference and improving the accuracy of radar signal measurement.

[0042] Specifically, a POM material base plate 19 is provided at the bottom of the inner cavity of the shell bottom cover 2 as a bottom waterproof cover to prevent dust from entering and ensure radar wave penetration. A base plate pressure ring 20 is installed on the top of the base plate 19 to fix the base plate 19.

[0043] Furthermore, the base plate 19 is made of POM material to form a radar wave-penetrable sealing layer, serving as a waterproof protective cover for the radar wave emitting surface. The base plate pressure ring 20 provides uniform clamping force to the base plate 19, ensuring sealing while enhancing its structural stability and seismic performance under vibration environment, and ensuring that the radar wave emitting surface is always in a precise alignment state.

[0044] In use, the stepper motor 13 drives the drive gear 14 connected to its output shaft, and through the gear set meshing with it, drives the three sets of transmission shaft gears 29 to rotate synchronously, realizing single-motor drive of three-axis linkage. This gear set consists of the medium gear 15 and the transmission shaft gears 29, which are evenly distributed at 120° on the same plane circumference to ensure balanced power transmission and smooth movement. The transmission is finally transmitted to the worm wheel 21 through the worm shaft 23 and the worm 22, thereby driving the movable radar module kit mounted on its outer side to perform mechanical scanning. The movable radar module kit consists of a movable radar module 30, a radar lens 25, a module bracket 26, and a lens bracket 27, and can rotate from vertically downward to 60° inward. Reciprocating scanning enables multi-angle dynamic detection of the surface of the object being measured. Simultaneously, the fixed radar module kit includes four fixed radar modules: three offset by 6°, and one centered vertically downwards for static multi-point detection. These, along with the radar beam concentrater 28, enhance signal focusing capability and improve measurement accuracy. All radar modules are mounted on a plastic base plate 18, which provides a platform for radar signal penetration and is reinforced by a bottom stainless steel plate 17. A sealing ring 16 ensures a waterproof seal between the two. The stainless steel plate 17 provides structural strength and enhances corrosion resistance, while the plastic base plate 18 ensures efficient radar beam penetration, forming a dual-protection structure that effectively prevents... External moisture and dust can penetrate the installation cavity, extending the equipment's service life. The bottom of the housing cover 2 is equipped with a POM material base plate 19, serving as a waterproof cover for the radar wave emitting surface. This ensures stable radar wave penetration while providing excellent sealing performance. The base plate 19 is evenly pressed together by a base plate pressure ring 20 at the top, enhancing its shock resistance and structural stability while ensuring a tight seal. This ensures the radar wave emitting surface maintains precise alignment even in vibrating environments. The meter head 3 contains an integrated circuit board 12 responsible for core functions such as power conversion, stepper motor drive, radar signal processing, data calculation, and signal input / output. The display screen 11 is embedded inside the meter head 3 and is secured by a tempered glass cover 4. The glass 10 enables data visualization, facilitating user operation and monitoring. The tempered glass 10 has excellent explosion-proof performance, enhancing the safety of the equipment in harsh industrial environments. In addition, the top of the housing base cover 1 is equipped with a fall arrestor ring 9, facilitating safe installation and fixation during high-altitude operations. The temperature sensor 8 monitors the changes in the external ambient temperature and the internal temperature of the installation cavity in real time, providing timely warnings of overheating risks and ensuring stable system operation. The meter head 3 has a cable outlet 5 on one side, optimizing the cable routing path and avoiding messy tangling. The top of the housing bottom cover 2 is equipped with a grounding screw 6 and a grounding mark 7, ensuring safe grounding of the equipment, eliminating static electricity and electromagnetic interference, and further improving the measurement accuracy and stability of radar signals.

[0045] In summary, the stepper motor 13 drives the gear 14 to drive three sets of media gears 15 and transmission shaft gears 29 distributed at 120° to each other for synchronous transmission. This causes the worm shaft 23 to drive the worm 22 to mesh with the worm wheel 21, realizing the reciprocating mechanical scanning of the movable radar module 30. At the same time, it cooperates with the static detection of four fixed radar modules 24 to form a dynamic and static complementary 3D radar imaging system. The tempered glass 10 protects the display screen 11 and ensures data visibility. The plastic base plate 18 and the stainless steel plate 17 are combined with the sealing ring 16 to achieve waterproof and wave-transparent operation. The anti-fall ring 9 enhances the installation safety. The temperature sensor 8 monitors the ambient temperature and internal temperature of the equipment in real time. The complete circuit board 12 integrates the processing of radar signals and calculation data to achieve high-precision, blind-spot-free three-dimensional imaging and real-time monitoring of materials.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A multi-angle dynamic scanning 3D radar imaging level gauge, characterized in that: include: The housing assembly includes a housing base cover (1), a housing bottom cover (2) disposed at the bottom of the housing base cover (1), a meter head (3) fixedly installed on the top of the housing base cover (1), and a top cover (4) fixedly installed on the top of the meter head (3). The housing assembly forms an installation cavity that can be used for waterproofing and dustproofing. The drive assembly includes a stepper motor (13) disposed in the inner cavity of the meter head (3), a drive gear (14) fixedly connected to the output shaft of the stepper motor (13), a gear set meshing with the outside of the drive gear (14), a worm shaft (23) disposed in the inner cavity of the housing bottom cover (2), a worm (22) disposed at the bottom of the worm shaft (23), and a worm wheel (21) meshing with the outside of the worm (22); The movable radar module assembly located outside the worm gear (21) includes a movable radar module (30), a radar lens (25), a module bracket (26), and a lens bracket (27). The movable radar module assembly is driven by the meshing of the worm gear (21) and the worm (22) for reciprocating mechanical scanning within a range from vertically downward to inward rotation of 60°. The fixed radar module kit for static multi-point detection includes three fixed radar modules (24) arranged at an offset of 6° in the inner cavity of the housing bottom cover (2) and a fixed radar module that illuminates vertically downward in the center, as well as a radar radome (28) disposed on one side of the inner cavity of the housing bottom cover (2).

2. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The gear set includes a medium gear (15) and a transmission shaft gear (29), which are evenly distributed on the same plane circumference and are 120° apart, and are used to realize the synchronous transmission of three axes driven by a single motor.

3. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The bottom of the housing cover (2) is provided with a plastic base plate (18), which is a radar module mounting plate on which all radar modules are mounted. A stainless steel plate (17) is fixedly connected to the bottom of the plastic base plate (18) to strengthen the fixation of the plastic base plate (18). A sealing ring (16) is provided at the connection between the stainless steel plate (17), the plastic base plate (18) and the housing cover (2) to achieve waterproof sealing.

4. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The inner cavity of the meter head (3) is fixedly installed with a complete circuit board (12) for power conversion, stepper motor drive, radar signal processing, data calculation and signal input and output. The top of the upper cover (4) is provided with tempered glass (10). The complete circuit board (12) also includes a display screen (11), which is set in the meter head (3) and displays data through the tempered glass (10).

5. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The top of the housing base cover (1) is provided with a fall protection ring (9), and the housing base cover (1) and the mounting cavity are provided with a temperature sensor (8) for monitoring the external ambient temperature of the housing assembly and the internal temperature of the mounting cavity.

6. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The meter head (3) has a cable outlet (5) on one side, and the bottom cover (2) of the housing has a grounding screw (6) and a grounding mark (7) on one side of the top, for cable laying and safe grounding.

7. The multi-angle dynamic scanning 3D radar imaging level gauge according to claim 1, characterized in that: The bottom of the inner cavity of the housing bottom cover (2) is provided with a POM material bottom plate (19) as a bottom waterproof cover to prevent dust from entering and ensure radar wave penetration. A bottom plate pressure ring (20) is installed on the top of the bottom plate (19) to fix the bottom plate (19).

Images