Radar detection device

Abstract

The application belongs to the technical field of detection devices, and discloses a radar detection device, which comprises a mounting support, a rotating support rotatably connected to the mounting support around a rotating axis, the rotating axis extending along a first direction, and a detection assembly connected to the rotating support, wherein the detection assembly comprises a radar detection unit, and a detection direction of the radar detection unit intersects the first direction. The application can solve the technical problem that the detection range of the radar detection device is difficult to adjust.

Description

Technical Field

[0001] This application belongs to the field of detection device technology, specifically relating to a radar detection device. Background Technology

[0002] The detection range of a radar detection device is related to the direction of its emitted electromagnetic waves. Radar detection devices are generally mounted on fixed brackets, and once fixed in place, the direction of their emitted electromagnetic waves is also fixed, making it difficult to adjust the detection range. Utility Model Content

[0003] The purpose of this application is to provide a radar detection device to solve the technical problem that the detection range of existing radar detection devices is difficult to adjust.

[0004] To achieve the above objectives, this application provides a radar detection device, comprising: a mounting bracket; a rotating bracket rotatably connected to the mounting bracket about a rotation axis extending along a first direction; and a detection component connected to the rotating bracket, the detection component including a radar detection unit, the detection direction of the radar detection unit intersecting the first direction.

[0005] In some embodiments, the rotating bracket includes an annular wall and a first abutting structure and a second abutting structure connected to the annular wall. The mounting bracket is disposed within the space enclosed by the annular wall, the axis of the annular wall coincides with the rotation axis, and the annular wall is used to prevent the mounting bracket from moving radially along the annular wall. The first abutting structure and the second abutting structure abut against different positions of the mounting bracket. In a first direction, the first abutting structure and the second abutting structure are used to prevent the mounting bracket from moving in opposite directions.

[0006] In some embodiments, the mounting bracket includes a mounting body and an annular flange connected to the mounting body, the axis of the annular flange coinciding with the rotation axis; the mounting body is disposed within the space enclosed by an annular wall, the annular wall being used to prevent the mounting body from moving radially along the annular wall; a first abutting structure abuts against one end of the mounting body along a first direction; a second abutting structure abuts against one end of the annular flange away from the first abutting structure along the first direction.

[0007] In some embodiments, the second abutment structure includes a hook and an elastic connecting arm, the hook abutting against an annular flange; the elastic connecting arm connecting the hook and the first abutment structure.

[0008] In some embodiments, the side of the annular flange that is radially away from the mounting body is a transition annular surface, which is coaxial with the annular flange; the annular flange is inclined along a first direction near the end face of the first abutment structure and forms a first conical surface, which is coaxial with the annular flange; in the first direction, the first conical surface intersects with the transition annular surface at the edge of the first conical surface near the hook; and / or, the annular flange is inclined along a first direction away from the end face of the first abutment structure and forms a second conical surface, which is coaxial with the annular flange; in the first direction, the second conical surface intersects with the transition annular surface at the edge of the second conical surface near the first abutment structure, and the hook abuts against the second conical surface.

[0009] In some embodiments, the hook has a transition surface, which is disposed opposite to the side of the mounting body connected to the annular flange; the end of the hook away from the annular flange in a first direction is inclined to the annular flange and forms a first inclined surface; in the first direction, the first inclined surface intersects the transition surface at the edge of the first inclined surface near the annular flange; and / or, the end of the hook near the annular flange in the first direction is inclined to the direction away from the annular flange and forms a second inclined surface; in the first direction, the second inclined surface intersects the transition surface at the edge of the second inclined surface away from the first abutment structure, and the second inclined surface abuts against the annular flange.

[0010] In some embodiments, the second abutment structure is provided with at least three hooks, and the multiple hooks of the multiple second abutment structures are distributed around the rotation axis, and the angle between any two adjacent hooks and the rotation axis is less than or equal to 180°.

[0011] In some embodiments, the radar detection device further includes an anti-slip pad sandwiched between the first supporting structure and the mounting bracket.

[0012] In some embodiments, the mounting body has a through hole coaxial with the annular flange, the annular flange is connected to the wall of the through hole, and the second abutment structure is located inside the through hole.

[0013] In some embodiments, the detection component further includes an infrared sensor, the infrared sensor being oriented in a first direction.

[0014] The beneficial effects of the radar detection device provided in this application are as follows: the detection component is rotatably connected to the mounting bracket via a rotating bracket, so that even after the mounting bracket is fixed, the rotating bracket and the detection component can still be rotated. Since the detection direction of the radar detection unit intersects with the first direction, rotating the radar detection unit can change its orientation, thereby changing its detection direction and detection range. The rotating bracket can rotate 360° relative to the mounting bracket around its rotation axis, so the radar detection unit can rotate 360° with the rotating bracket around its rotation axis, and the detection range of the radar detection unit can also rotate 360° around its rotation axis. The embodiments of this application can solve the technical problem of the difficulty in adjusting the detection range of a radar detection device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 Schematic diagram of the structure of the radar detection device provided in some embodiments of this application Figure 1 ; Figure 2 for Figure 1 A schematic diagram of the disassembled state of the radar detection device; Figure 3 for Figure 1 Schematic diagram of the bottom structure of the radar detection device Figure 1 ; Figure 4 for Figure 1 Schematic diagram of the bottom structure of the radar detection device Figure 2 ; Figure 5 for Figure 1 Front view of the radar detection device; Figure 6 for Figure 5 A cross-sectional view of the radar detection device in China; Figure 7 for Figure 6 Enlarged view of part A in the middle; Figure 8 This is a schematic diagram of the structure of the rotating bracket provided in some embodiments of this application; Figure 9 for Figure 1 A schematic diagram of the structure of the mounting bracket; Figure 10 for Figure 9 A cross-sectional view of the mounting bracket; Figure 11 Schematic diagram of the structure of the radar detection device provided in some embodiments of this application Figure 2 ; Figure 12 for Figure 11 A schematic diagram of the disassembled state of the radar detection device; Figure 13 for Figure 11 Schematic diagram of the bottom structure of the radar detection device Figure 1 ; Figure 14 for Figure 11 Schematic diagram of the bottom structure of the radar detection device Figure 2 ; Figure 15 for Figure 11 Front view of the radar detection device; Figure 16 for Figure 15 BB cross-sectional view of the radar detection device in China; Figure 17 for Figure 11 A schematic diagram of the structure connecting the mounting bracket and the ceiling spring clip.

[0017] The following are the labeling elements in the figure: 100. Radar detection device; 10. Mounting bracket; 11. Mounting body; 111. Annular plate; 1111. Through hole; 1112. Connecting surface; 112. Mounting plate; 1121. Mounting hole; 12. Annular flange; 121. Transition annular surface; 122. First conical surface; 123. Second conical surface; 20. Rotating bracket; 21. Annular wall; 22. First supporting structure; 23. Second supporting structure; 231. Hook; 2311. Transition surface; 2312. First inclined surface; 2313. Second inclined surface; 232. Elastic connecting arm; 24. Separator; 241. Threading hole; 25. Rotation axis; 30. Detection component; 31. Radar detection unit; 32. Infrared sensor; 33. Button; 34. Lens cap; 35. Lens mount; 36. Inner support; 37. Power circuit board; 38. Light guide column; 40. Protective casing; 50. Anti-slip mat; 60. Ceiling-mounted spring clip; 70. Lead wire; 80. Silicone plugs for electrical wires; 90. Silicone sealing strip. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] This application provides a radar detection device that can detect the position, speed, and trajectory of an object. The radar detection device can be used in products such as radar induction switches and traffic speed measurement equipment.

[0023] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The radar detection device 100 of this application embodiment includes a mounting bracket 10, a rotating bracket 20, and a detection component 30. The rotating bracket 20 is rotatably connected to the mounting bracket 10 about a rotation axis 25, which extends along a first direction Z. The detection component 30 is connected to the rotating bracket 20 and includes a radar detection unit 31, the detection direction P of which intersects with the first direction Z.

[0024] Mounting bracket 10 is used for connection to an external structure of the radar detection device 100, and can support the rotating bracket 20. Optionally, mounting bracket 10 is made of flame-retardant polycarbonate (PC) material, which can suppress the combustion process and can be used for a period of time in the event of a fire.

[0025] The rotating bracket 20 supports the detection component 30. The rotating bracket 20 is rotatably connected to the mounting bracket 10, and can rotate 360° relative to the mounting bracket 10 around a rotation axis 25. The rotation axis 25 is the axis through which the rotating bracket 20 can rotate relative to the mounting bracket 10; the rotation axis 25 is a virtual line. Optionally, the rotating bracket 20 can be rotatably connected to the mounting bracket 10 via bearings, pins, etc., with the axis of the bearing or pin coinciding with the rotation axis 25. Optionally, the rotating bracket 20 may be made of flame-retardant polycarbonate (PC) material, which can suppress the combustion process and allow for use for a period of time even when on fire.

[0026] The detection component 30 is used to detect objects. The detection component 30 is rotatably connected to the mounting bracket 10 via a rotating bracket 20, and the detection component 30 can rotate synchronously with the rotating bracket 20 around the rotation axis 25. The direction in which the radar detection unit 31 emits electromagnetic waves is the detection direction. The detection direction P of the radar detection unit 31 is related to the orientation of the radar detection unit 31; since the detection direction P of the radar detection unit 31 intersects with the first direction Z, when the mounting bracket 10 is fixed, if the radar detection unit 31 rotates around the rotation axis 25, the orientation of the radar detection unit 31 changes, and the detection direction P and detection range of the radar detection unit 31 also change. The radar detection unit 31 can rotate 360° around the rotation axis 25 with the rotating bracket 20, so the detection range of the radar detection unit 31 can also rotate 360° around the rotation axis 25.

[0027] In use, the mounting bracket 10 is fixed, and the radar detection unit 31 can detect objects in one direction. After rotating the rotating bracket 20 and the detection assembly 30 around the rotation axis 25, the orientation of the radar detection unit 31 changes, and the radar detection unit 31 can detect objects in another direction.

[0028] The beneficial effects of this application embodiment are as follows: the detection component 30 is rotatably connected to the mounting bracket 10 via the rotating bracket 20, so that even after the mounting bracket 10 is fixed, the rotating bracket 20 and the detection component 30 can still be rotated. Since the detection direction P of the radar detection unit 31 intersects with the first direction Z, rotating the radar detection unit 31 can change the orientation of the radar detection unit 31, thereby changing the detection direction P and the detection range of the radar detection unit 31. The rotating bracket 20 can rotate 360° relative to the mounting bracket 10 around the rotation axis 25, so the radar detection unit 31 can rotate 360° with the rotating bracket 20 around the rotation axis 25, and the detection range of the radar detection unit 31 can also rotate 360° around the rotation axis 25. This application embodiment can solve the technical problem that the detection range of the radar detection device is difficult to adjust.

[0029] In some embodiments, please refer to Figure 5 , Figure 6 , Figure 15 and Figure 16 The rotating bracket 20 includes an annular wall 21 and a first abutting structure 22 and a second abutting structure 23 connected to the annular wall 21. The mounting bracket 10 is disposed in the space enclosed by the annular wall 21. The axis of the annular wall 21 coincides with the rotation axis 25. The annular wall 21 is used to block the mounting bracket 10 from moving radially along the annular wall 21.

[0030] The first abutting structure 22 and the second abutting structure 23 abut against different positions of the mounting bracket 10; in the first direction Z, the first abutting structure 22 and the second abutting structure 23 are used to prevent the mounting bracket 10 from moving in opposite directions.

[0031] The mounting bracket 10 is disposed within the space enclosed by the annular wall 21, that is, the annular wall 21 is fitted onto the mounting bracket 10. Optionally, the mounting bracket 10 may be entirely located within the space enclosed by the annular wall 21. Optionally, the mounting bracket 10 may also be partially located within the space enclosed by the annular wall 21. The annular wall 21 has a circular structure; the annular wall 21 is used to prevent the mounting bracket 10 from moving radially along the annular wall 21. That is, in multiple directions perpendicular to the rotation axis 25, the annular wall 21 can prevent the mounting bracket 10 from moving relative to the annular wall 21. Similarly, the mounting bracket 10 can also prevent the annular wall 21 from moving relative to the mounting bracket 10. Optionally, the inner annular surface of the annular wall 21 can contact the mounting bracket 10. Optionally, a small gap can also be provided between the annular wall 21 and the mounting bracket 10 in the radial direction of the annular wall 21 to facilitate the installation of the mounting bracket 10 into the space enclosed by the annular wall 21.

[0032] The positions where the first abutting structure 22 abuts against the mounting bracket 10 and the positions where the second abutting structure 23 abuts against the mounting bracket 10 are spaced apart along a first direction Z. The first direction Z includes a first positive direction and a first negative direction, which are opposite in direction. The first abutting structure 22 and the second abutting structure 23 are respectively used to prevent the mounting bracket 10 from moving relative to the rotating bracket 20 along the first positive direction and the first negative direction. Similarly, the mounting bracket 10 can also prevent the rotating bracket 20 from moving relative to the mounting bracket 10 along the first positive direction and the first negative direction. In the first direction Z, the first abutting structure 22 and the second abutting structure 23 exert pressure on the mounting bracket 10 in opposite directions. Optionally, the abutting force of the first abutting structure 22 on the mounting bracket 10 can be along the first positive direction, and the abutting force of the second abutting structure 23 on the mounting bracket 10 can be along the first negative direction. Optionally, the component of the abutting force of the first abutting structure 22 on the mounting bracket 10 can be along the first positive direction, and the component of the abutting force of the second abutting structure 23 on the mounting bracket 10 can be along the first negative direction. For example, in the first direction Z, the first abutting structure 22 and the second abutting structure 23 can respectively abut against the two ends of the mounting bracket 10, and the first abutting structure 22 and the second abutting structure 23 clamp the mounting bracket 10 to prevent the rotating bracket 20 from moving relative to the mounting bracket 10 in the first direction Z.

[0033] Optionally, the annular wall 21, the first abutment structure 22, and the second abutment structure 23 can be an integral structure, and the annular wall 21, the first abutment structure 22, and the second abutment structure 23 can be formed simultaneously, resulting in higher production efficiency of the rotating bracket 20.

[0034] The beneficial effects of this embodiment are as follows: the annular wall 21 can prevent the mounting bracket 10 from moving radially relative to the rotating bracket 20 along the annular wall 21; in the first direction Z, the first abutting structure 22 and the second abutting structure 23 are used to prevent the mounting bracket 10 from moving relative to the rotating bracket 20. Therefore, the mounting bracket 10 can only move circumferentially along the annular wall 21, that is, the mounting bracket 10 can rotate relative to the rotating bracket 20 around the rotation axis 25. Similarly, the rotating bracket 20 can rotate relative to the mounting bracket 10 around the rotation axis 25. Since the first abutting structure 22 and the second abutting structure 23 abut against the mounting bracket 10 respectively, the first abutting structure 22 and the second abutting structure 23 have friction with the mounting bracket 10 respectively, and the rotating bracket 20 can remain stable after rotating at any angle relative to the mounting bracket 10; when adjusting the angle of the rotating bracket 20, the rotating bracket 20 can be manually adjusted steplessly around the rotation axis 25 in 360°.

[0035] In some embodiments, please refer to Figure 5 , Figure 6 , Figure 15 and Figure 16The mounting bracket 10 includes a mounting body 11 and an annular flange 12 connected to the mounting body 11. The axis of the annular flange 12 coincides with the rotation axis 25.

[0036] The mounting body 11 is located within the space enclosed by the annular wall 21, which is used to prevent the mounting body 11 from moving radially along the annular wall 21; the first abutting structure 22 abuts against one end of the mounting body 11 along the first direction Z; and the second abutting structure 23 abuts against one end of the annular flange 12 away from the first abutting structure 22 along the first direction Z.

[0037] The mounting bracket 10 is used to connect to an external structure of the radar detection device 100. Optionally, the mounting body 11 can be a ring structure, prism, cylinder, or other shape extending along the first direction Z.

[0038] The axis of the annular flange 12 coincides with the rotation axis 25, meaning the annular flange 12 is a circular ring structure. Optionally, the annular flange 12 can be connected to the outer surface of the mounting bracket 10. Optionally, when the mounting body 11 is annular extending along the first direction Z, the annular flange 12 can also be connected to the inner ring surface of the mounting body 11. Optionally, the annular flange 12 can be connected between the two ends of the mounting body 11 along the first direction Z. Optionally, the annular flange 12 can also be connected to the end of the mounting body 11 away from the first abutment structure 22 along the first direction Z. Optionally, the annular flange 12 can be directly fixed to the mounting body 11. Optionally, the annular flange 12 can also be fixed to the mounting body 11 through a connecting structure. Optionally, the annular flange 12 and the mounting body 11 can be an integral structure, which can improve the molding efficiency of the mounting bracket 10.

[0039] The annular wall 21 can prevent the mounting bracket 10 from moving by blocking the movement of the mounting body 11. The first abutment structure 22 can abut against either end of the mounting body 11 along the first direction Z.

[0040] The annular flange 12 and the first abutting structure 22 are arranged along the first direction Z. The second abutting structure 23 abuts against the end of the annular flange 12 away from the first abutting structure 22 along the first direction Z. That is, the pressure of the second abutting structure 23 on the annular flange 12 is directed towards the first abutting structure 22 along the first direction Z, or the component of the pressure of the second abutting structure 23 on the annular flange 12 is directed towards the first abutting structure 22 along the first direction Z. Since the pressures of the first abutting structure 22 and the second abutting structure 23 on the mounting bracket 10 are opposite along the first direction Z, the pressure of the first abutting structure 22 on the mounting body 11 is directed towards the annular flange 12 along the first direction Z, or the component of the pressure of the first abutting structure 22 on the mounting body 11 is directed towards the annular flange 12 along the first direction Z. The first abutting structure 22 and the second abutting structure 23 clamp the mounting bracket 10 along the first direction Z.

[0041] The beneficial effects of this embodiment are as follows: In the first direction Z, the first abutting structure 22 and the second abutting structure 23 abut against one end of the mounting body 11 and the annular flange 12, respectively, which can prevent the rotating bracket 20 from moving relative to the mounting bracket 10 in the first direction Z. The annular flange 12 facilitates abutment against the second abutting structure 23. The annular flange 12 is a ring shape with its axis coinciding with the rotation axis 25. After the rotating bracket 20 rotates relative to the mounting bracket 10, the second abutting structure 23 can always maintain abutment against the annular flange 12. Moreover, the annular flange 12 can be set at any position on the mounting body 11 in the first direction Z, making it easy to adapt to the second abutting structure 23.

[0042] In some embodiments, please refer to Figures 5 to 7 The second abutment structure 23 includes a hook 231 and an elastic connecting arm 232. The hook 231 abuts against the annular flange 12; the elastic connecting arm 232 connects the hook 231 and the first abutment structure 22.

[0043] The hook 231 abuts against the annular flange 12, meaning the hook 231 is located at the end of the annular flange 12 away from the second abutting structure 23 along the first direction Z. The hook 231 and the second abutting structure 23 are spaced apart along the first direction Z. The two ends of the elastic connecting arm 232 along its length are respectively connected to the hook 231 and the first abutting structure 22. Optionally, when the hook 231 and the first abutting structure 22 are in the same position circumferentially on the annular flange 12, the elastic connecting arm 232 can extend along the first direction Z. Optionally, when the hook 231 and the first abutting structure 22 are misaligned circumferentially on the annular flange 12, the length direction of the elastic connecting arm 232 intersects the first direction Z. Optionally, the elastic connecting arm 232 can be a plastic rod, plastic sheet, metal sheet, etc.

[0044] When the rotating bracket 20 is connected to the mounting bracket 10, in the first direction Z, the annular wall 21 is moved from the side of the mounting body 11 near the first abutment structure 22 towards the mounting bracket 10, and the annular wall 21 is fitted onto the mounting body 11. When the hook 231 moves to the end of the annular flange 12 near the first abutment structure 22, the hook 231 is moved radially away from the mounting body 11 towards the annular flange 12. Continuing to move the rotating bracket 20, when the first abutment structure 22 is moved to abut against one end of the mounting bracket 10, the hook 231 abuts against the annular flange 12.

[0045] The beneficial effects of this application embodiment are as follows: by using the elastic connecting arm 232 to connect the hook 231 and the first abutting structure 22, when installing or removing the rotating bracket 20 on the mounting bracket 10, the hook 231 can be moved radially along the annular flange 12. After the hook 231 causes the elastic connecting arm 232 to undergo elastic deformation, the elastic connecting arm 232 can drive the hook 231 to reset, and the rotating bracket 20 can be repeatedly disassembled and used.

[0046] In some embodiments, please refer to Figures 5 to 7 , Figure 9 and Figure 10 The annular flange 12 has a transition annular surface 121 on its radial side facing away from the mounting body 11. The transition annular surface 121 is coaxial with the annular flange 12. The annular flange 12 is inclined along the first direction Z towards the end face of the first abutment structure 22 and forms a first conical surface 122. The first conical surface 122 is coaxial with the annular flange 12. In the first direction Z, the first conical surface 122 intersects the transition annular surface 121 at the edge of the first conical surface 122 near the hook 231.

[0047] The transition annular surface 121 is located between the two ends of the annular flange 12 along the first direction Z. Optionally, the transition annular surface 121 can be a toroidal surface, a conical surface, etc.

[0048] Optionally, the end face of the annular flange 12 approaching the first abutment structure 22 along the first direction Z can be completely inclined to form a first conical surface 122. Optionally, the end face of the annular flange 12 approaching the first abutment structure 22 along the first direction Z can also be partially inclined to form a first conical surface 122.

[0049] The first end is defined as the end where the first conical surface 122 intersects the transition annular surface 121 along the first direction Z, and the other end of the first conical surface 122 along the first direction Z is defined as the second end. In the radial direction of the annular flange 12, the first end is the end of the first conical surface 122 away from the mounting body 11, and the second end is the end of the first conical surface 122 close to the mounting body 11. Since the first end is the end of the first conical surface 122 close to the hook 231 along the first direction Z, the second end is the end of the first conical surface 122 away from the hook 231 along the first direction Z. For example, when the annular flange 12 is connected to the outer surface of the mounting body 11, the diameter of the transition annular surface 121 is larger than the diameter of the side of the annular flange 12 connected to the mounting body 11, and the diameter of the first conical surface 122 gradually increases from the second end to the first end along the first direction Z. For example, when the mounting body 11 is an annular structure extending along the first direction Z, the annular flange 12 can be connected to the inner annular surface of the mounting body 11, the diameter of the transition annular surface 121 is smaller than the diameter of the side of the annular flange 12 connected to the mounting body 11, and the diameter of the first conical surface 122 gradually decreases from the second end to the first end along the first direction Z.

[0050] The first conical surface 122 is located at one end of the annular flange 12 near the first abutting structure 22 along the first direction Z. When the rotating bracket 20 is connected to the mounting bracket 10, the hook 231 moves from the end of the mounting body 11 that abuts against the first abutting structure 22 towards the annular flange 12. When the hook 231 moves to the annular flange 12, it first contacts the first conical surface 122. As the hook 231 moves on the first conical surface 122 away from the first abutting structure 22, it also moves radially away from the mounting body 11 along the annular flange 12. The hook 231 can move from the first conical surface 122 to the transition annular surface 121, and finally to the end of the annular flange 12 away from the first abutting structure 22. When installing the rotating bracket 20, there is no need to manually move the hook 231 radially along the annular flange 12. The first conical surface 122 can guide the hook 231 to move automatically radially along the annular flange 12. The rotating bracket 20 can be quickly connected to the mounting bracket 10 simply by moving the rotating bracket 20 along the first direction Z.

[0051] In some embodiments, please refer to Figures 5 to 7 , Figure 9 and Figure 10 The annular flange 12 has a transition annular surface 121 on its radial side away from the mounting body 11, and the transition annular surface 121 is coaxial with the annular flange 12. The end face of the annular flange 12 is inclined away from the first abutment structure 22 along the first direction Z and forms a second conical surface 123, which is coaxial with the annular flange 12. In the first direction Z, the second conical surface 123 intersects with the transition annular surface 121 at the edge of the second conical surface 123 near the first abutment structure 22, and the hook 231 abuts against the second conical surface 123.

[0052] Optionally, the end face of the annular flange 12 away from the first abutment structure 22 along the first direction Z can be completely inclined to form a second conical surface 123. Optionally, the end face of the annular flange 12 away from the first abutment structure 22 along the first direction Z can also be partially inclined to form a second conical surface 123.

[0053] The end where the second conical surface 123 intersects the transition annular surface 121 along the first direction Z is defined as the third end, and the other end of the second conical surface 123 along the first direction Z is defined as the fourth end. In the radial direction of the annular flange 12, the third end is the end of the second conical surface 123 away from the mounting body 11, and the fourth end is the end of the second conical surface 123 close to the mounting body 11. Since the third end is the end of the second conical surface 123 away from the first abutment structure 22 along the first direction Z, the fourth end is also the end of the second conical surface 123 away from the first abutment structure 22 along the first direction Z. For example, when the annular flange 12 is connected to the outer surface of the mounting body 11, the diameter of the transition annular surface 121 is larger than the diameter of the side of the annular flange 12 connected to the mounting body 11, and the diameter of the second conical surface 123 gradually increases from the fourth end to the third end. For example, when the mounting body 11 is an annular structure extending along the first direction Z, the annular flange 12 can be connected to the inner annular surface of the mounting body 11, the diameter of the transition annular surface 121 is smaller than the diameter of the side of the annular flange 12 connected to the mounting body 11, and the diameter of the second conical surface 123 gradually decreases from the fourth end to the third end.

[0054] When the rotating bracket 20 is removed from the mounting bracket 10, the hook 231 abuts against the second conical surface 123. As the hook 231 moves towards the transition annular surface 121 on the second conical surface 123, it also moves radially away from the mounting body 11 along the annular flange 12. The hook 231 can move from the second conical surface 123 to the transition annular surface 121 and eventually disengage from the annular flange 12. When removing the rotating bracket 20, it is not necessary to manually move the hook 231 radially along the annular flange 12; the second conical surface 123 can guide the hook 231 to move automatically radially along the annular flange 12. Simply moving the rotating bracket 20 along the first direction Z allows for quick removal from the mounting bracket 10.

[0055] In some embodiments, please refer to Figures 5 to 7 , Figure 9 and Figure 10 The annular flange 12 has a transition annular surface 121 on its radial side away from the mounting body 11. The transition annular surface 121 is coaxial with the annular flange 12. The annular flange 12 is inclined along the first direction Z towards the end face of the first abutment structure 22 and forms a first conical surface 122. The first conical surface 122 is coaxial with the annular flange 12. In the first direction Z, the first conical surface 122 intersects the transition annular surface 121 at the edge of the first conical surface 122 near the hook 231.

[0056] The annular flange 12 is inclined away from the end face of the first abutment structure 22 along the first direction Z and forms a second conical surface 123. The second conical surface 123 is coaxial with the annular flange 12. In the first direction Z, the second conical surface 123 intersects with the transition annular surface 121 at the edge of the second conical surface 123 near the first abutment structure 22.

[0057] In some embodiments, please refer to Figures 5 to 8 The hook 231 has a transition surface 2311, which is disposed opposite to the side of the mounting body 11 that connects to the annular flange 12. The end of the hook 231 away from the annular flange 12 along the first direction Z is inclined to the annular flange 12 and forms a first inclined surface 2312; in the first direction Z, the first inclined surface 2312 intersects the transition surface 2311 at the edge of the first inclined surface 2312 near the annular flange 12.

[0058] The surface where the mounting body 11 connects to the annular flange 12 is defined as the connecting surface 1112. A transition surface 2311 is provided between the two ends of the latch 231 along the first direction Z. The radial direction from the rotation axis 25 to the center of the latch 231 of the annular flange 12 is defined as the reference radial direction. In the reference radial direction, the transition surface 2311 is the side of the latch 231 facing the connecting surface 1112. Optionally, the transition surface 2311 can be parallel to the first direction Z. Optionally, the transition surface 2311 can also intersect with the first direction Z.

[0059] Optionally, the end face of the hook 231 away from the annular flange 12 along the first direction Z can be completely inclined to form a first inclined surface 2312. Optionally, the end face of the hook 231 away from the annular flange 12 along the first direction Z can also be partially inclined to form a first inclined surface 2312.

[0060] In the first direction Z, the first inclined surface 2312 intersects the transition surface 2311 at the edge of the first inclined surface 2312 near the annular flange 12. That is, the edge where the first inclined surface 2312 intersects the transition surface 2311 is located at one end of the first inclined surface 2312 near the annular flange 12. Then, the edge of the first inclined surface 2312 away from the transition surface 2311 along the reference radial direction is located at one end of the first inclined surface 2312 away from the annular flange 12. The first inclined surface 2312 slopes along the reference radial direction from the end away from the transition surface 2311 to the end near the transition surface 2311 towards the annular flange 12.

[0061] The first inclined surface 2312 is used to abut against the end of the annular flange 12 near the first abutting structure 22 along the first direction Z. When the rotating bracket 20 is connected to the mounting bracket 10, the hook 231 moves from the end of the mounting body 11 that abuts against the first abutting structure 22 towards the annular flange 12. The first inclined surface 2312 on the hook 231 first contacts the annular flange 12. As the first inclined surface 2312 moves away from the first abutting structure 22 relative to the annular flange 12, it also moves away from the mounting body 11 radially along the annular flange 12. The hook 231 can move from the end of the annular flange 12 near the first abutting structure 22 to the transition annular surface 121, and finally to the end of the annular flange 12 away from the first abutting structure 22. When installing the rotating bracket 20, there is no need to manually move the hook 231 radially along the annular flange 12. The first inclined surface 2312 can automatically move radially along the annular flange 12. The rotating bracket 20 can be quickly connected to the mounting bracket 10 simply by moving the rotating bracket 20 along the first direction Z.

[0062] In some embodiments, please refer to Figures 5 to 8 The inclination angle of the first inclined surface 2312 relative to the rotation axis 25 is equal to the inclination angle of the first conical surface 122 relative to the rotation axis 25. When the rotating bracket 20 is connected to the mounting bracket 10, the contact area between the first inclined surface 2312 and the first conical surface 122 is large, and the wear of the hook 231 is less when it moves relative to the annular flange 12.

[0063] In some embodiments, please refer to Figures 5 to 8 The hook 231 has a transition surface 2311, which is disposed opposite to the side of the mounting body 11 that connects to the annular flange 12. The hook 231 is inclined along the first direction Z towards the end near the annular flange 12 and forms a second inclined surface 2313. In the first direction Z, the second inclined surface 2313 intersects the transition surface 2311 at the edge of the second inclined surface 2313 away from the first abutting structure 22, and the second inclined surface 2313 abuts against the annular flange 12.

[0064] Optionally, the end face of the hook 231 near the annular flange 12 along the first direction Z can be completely inclined to form a second inclined surface 2313. Optionally, the end face of the hook 231 near the annular flange 12 along the first direction Z can also be partially inclined to form a second inclined surface 2313.

[0065] In the first direction Z, the second inclined surface 2313 intersects the transition surface 2311 at the edge of the second inclined surface 2313 away from the first abutting structure 22. That is, the edge where the second inclined surface 2313 intersects the transition surface 2311 is located at the end of the second inclined surface 2313 away from the first abutting structure 22. Then, the edge of the second inclined surface 2313 away from the transition surface 2311 along the reference radial direction is located at the end of the second inclined surface 2313 closer to the first abutting structure 22. The second inclined surface 2313 slopes along the reference radial direction from the end away from the transition surface 2311 to the end closer to the transition surface 2311 in the direction away from the first abutting structure 22.

[0066] The second inclined surface 2313 abuts against the annular flange 12. When the rotating bracket 20 is removed from the mounting bracket 10, as the second inclined surface 2313 moves relative to the annular flange 12 toward the first abutting structure 22, it also moves radially away from the mounting body 11 along the annular flange 12. The latch 231 can move from the end of the annular flange 12 away from the first abutting structure 22 to the transition annular surface 121, and finally disengage from the annular flange 12. When removing the rotating bracket 20, there is no need to manually move the latch 231 radially along the annular flange 12. The second inclined surface 2313 can move radially along the annular flange 12 automatically. The rotating bracket 20 can be quickly removed from the mounting bracket 10 simply by moving the rotating bracket 20 in the first direction Z.

[0067] In some embodiments, please refer to Figures 5 to 8 The inclination angle of the second inclined surface 2313 relative to the rotation axis 25 is equal to the inclination angle of the second conical surface 123 relative to the rotation axis 25. When the rotating bracket 20 is removed from the mounting bracket 10, the contact area between the second inclined surface 2313 and the second conical surface 123 is large, and the wear of the hook 231 is less when it moves relative to the annular flange 12.

[0068] In some embodiments, please refer to Figures 5 to 8 The hook 231 has a transition surface 2311, which is disposed opposite to the side of the mounting body 11 that connects to the annular flange 12. The end of the hook 231 away from the annular flange 12 along the first direction Z is inclined to the annular flange 12 and forms a first inclined surface 2312; in the first direction Z, the first inclined surface 2312 intersects the transition surface 2311 at the edge of the first inclined surface 2312 near the annular flange 12.

[0069] The hook 231 is inclined along the first direction Z towards the end of the annular flange 12 and away from the annular flange 12 to form a second inclined surface 2313; in the first direction Z, the second inclined surface 2313 intersects the transition surface 2311 at the edge of the second inclined surface 2313 away from the first abutting structure 22, and the second inclined surface 2313 abuts against the annular flange 12.

[0070] In some embodiments, please refer to Figure 8 The second abutment structure 23 is provided with at least three hooks 231 of the multiple second abutment structures 23 distributed around the rotation axis 25, and the angle between any two adjacent hooks 231 and the rotation axis 25 is less than or equal to 180°.

[0071] Optionally, the second abutment structure 23 may be provided in three, four or more forms.

[0072] The angle between adjacent hooks 231 and the rotation axis 25 is B. On a plane perpendicular to the first direction Z, the angle between the two lines connecting the orthographic projection centers of two hooks 231 and the two lines connecting the rotation axis 25 is also angle B. When the hook 231 has a second inclined surface 2313 or the annular flange 12 has a second conical surface 123, the hook 231 has a radial bearing force against the annular flange 12; the collective of multiple hooks 231 has a bearing force against any radial direction of the annular flange 12, and the collective of the hooks 231 and the annular flange 12 can remain relatively fixed. Optionally, the multiple hooks 231 are evenly spaced along the circumference of the annular flange 12. For example, the second bearing structure 23 can be set to three, and the angle between any two hooks 231 and the rotation axis 25 is equal to 120°.

[0073] The beneficial effects of this application embodiment are as follows: providing multiple second abutment structures 23 can increase the pressure of the rotating bracket 20 on the mounting bracket 10, thereby increasing the friction between the rotating bracket 20 and the mounting bracket 10, making the rotating bracket 20 more stable on the mounting bracket 10. When the hook 231 has a second inclined surface 2313 or the annular flange 12 has a second conical surface 123, the entire assembly of the multiple hooks 231 has a resisting force on any radial direction of the annular flange 12, and the entire assembly of the hooks 231 and the annular flange 12 can remain relatively fixed.

[0074] In some embodiments, please refer to Figures 5 to 7 The radar detection device 100 also includes an anti-slip pad 50 sandwiched between the first supporting structure 22 and the mounting bracket 10.

[0075] The first supporting structure 22 holds the anti-slip pad 50 against the mounting bracket 10. Optionally, the anti-slip pad 50 can be an ethylene-vinyl acetate copolymer (EVA) foam pad, a silicone pad, a rubber pad, etc.

[0076] The beneficial effect of this application embodiment is that: setting the anti-slip pad 50 can increase the friction between the first supporting structure 22 and the mounting bracket 10, making the rotating bracket 20 more stable on the mounting bracket 10.

[0077] In some embodiments, please refer to Figures 5 to 7 , Figure 9 and Figure 17 The mounting body 11 is provided with a through hole 1111 coaxial with the annular flange 12. The annular flange 12 is connected to the hole wall of the through hole 1111, and the second abutment structure 23 is located inside the through hole 1111.

[0078] The through hole 1111 is a circular hole extending along the first direction Z. The annular flange 12 and the second abutment structure 23 are both located within the through hole 1111, which can reduce the space occupied by the radar detection device 100 in the radial direction of the annular flange 12 and reduce the volume of the radar detection device 100; moreover, the mounting body 11 can protect the second abutment structure 23.

[0079] The annular flange 12 is connected to the wall of the through hole 1111. The wall of the through hole 1111 is the connecting surface 1112 on the mounting body 11 that connects to the annular flange 12. The diameter of the transition annular surface 121 is smaller than the diameter of the side of the annular flange 12 connected to the mounting body 11. Optionally, when the annular flange 12 has a first tapered surface 122, the diameter of the first tapered surface 122 gradually decreases from the second end to the first end along the first direction Z. Optionally, when the annular flange 12 has a first tapered surface 122, the diameter of the transition annular surface 121 is smaller than the diameter of the side of the annular flange 12 connected to the mounting body 11, and the diameter of the second tapered surface 123 gradually decreases from the fourth end to the third end.

[0080] In some embodiments, please refer to Figures 5 to 8 The first supporting structure 22 is an annular part coaxial with the annular flange 12. The anti-slip pad 50 is coaxial with the annular flange 12. Multiple second supporting structures 23 are provided around the rotation axis 25. The anti-slip pad 50 is sleeved on multiple second supporting structures 23.

[0081] Optionally, the first supporting structure 22 can be a plate-like structure with a thickness along the first direction Z.

[0082] The beneficial effects of this embodiment are as follows: Since both the first abutment structure 22 and the anti-slip pad 50 are annular, the contact area between the first abutment structure 22 and the anti-slip pad 50 is larger, the contact area between the anti-slip pad 50 and the mounting bracket 10 is also larger, resulting in greater friction between the first abutment structure 22 and the mounting bracket 10, thus making the rotating bracket 20 more stable on the mounting bracket 10. Furthermore, since the anti-slip pad 50 is fitted onto multiple second abutment structures 23, these structures can prevent the anti-slip pad 50 from moving radially, ensuring its stability during the rotation of the rotating bracket 20.

[0083] In some embodiments, please refer to Figures 5 to 8The rotating bracket 20 also includes a separator 24 connected to the second abutment structure 23. The separator 24 separates the detection component 30 from the through hole 1111 along the first direction Z. The separator 24 is provided with a wire hole 241. The radar detection device 100 also includes a lead wire 70 electrically connected to the detection component 30. The lead wire 70 extends from the detection component 30 through the wire hole 241 into the through hole 1111.

[0084] In the first direction Z, the detection component 30 is disposed on the side of the separator 24 away from the through hole 1111. Optionally, the separator 24 can be a plate-shaped component. Optionally, the separator 24, the annular wall 21, the first abutment structure 22 and the second abutment structure 23 can be an integral structure, and the separator 24, the annular wall 21, the first abutment structure 22 and the second abutment structure 23 can be formed simultaneously, resulting in higher production efficiency of the rotating bracket 20.

[0085] The two ends of the wire hole 241 along its own length direction are respectively located on both sides of the separator 24 along the first direction Z. Optionally, the wire hole 241 may extend along the first direction Z.

[0086] The lead wire 70 can extend from the through hole 1111 to the outside of the mounting bracket 10 and the rotating bracket 20, and can be connected to external devices of the radar detection device 100. Optionally, the lead wire 70 can be a power line, network cable, etc. of the detection component 30.

[0087] Optionally, the radar detection device 100 also includes a wire silicone plug 80 sleeved on the lead wire 70, the wire silicone plug 80 being disposed in the wire hole 241, and the wire silicone plug 80 having a waterproof function.

[0088] The beneficial effects of this embodiment are as follows: The separator 24 separates the through hole 1111 from the detection component 30, preventing external debris from entering the detection component 30 through the through hole 1111, thus maintaining the stability of the detection component 30. The wire hole 241 allows the lead wire 70 to extend from the detection component 30 into the through hole 1111, enabling the detection component 30 to be connected to external devices of the radar detection device 100 via the lead wire 70.

[0089] In some embodiments, please refer to Figures 3 to 6 , Figures 13 to 16 The detection component 30 also includes an infrared sensor 32, which is oriented in the first direction Z. This means that the infrared sensor 32 can detect objects along the first direction Z. The infrared sensor 32 can detect locations that the radar detection unit 31 cannot detect, thus increasing the detection range of the radar detection device 100.

[0090] In some embodiments, please refer to Figure 2 , Figure 5 and Figure 6The radar detection device 100 also includes a protective housing 40 fixed to the rotating bracket 20. The protective housing 40 and the separator 24 form an installation space, within which the detection component 30 is located. The detection component 30 is fixed to the protective housing 40 and connected to the rotating bracket 20 via the protective housing 40. Optionally, the protective housing 40 may be made of flame-retardant polycarbonate (PC) material, which can suppress the combustion process and allow it to be used for a period of time in the event of a fire.

[0091] Optionally, the radar detection device 100 also includes a silicone sealing strip 90 sandwiched between the rotating bracket 20 and the protective housing 40, which is waterproof.

[0092] In some embodiments, please refer to Figure 2 and Figure 12 The rotating bracket 20 is provided with a fixing hole. The radar detection device 100 also includes a screw and a silicone plug. The screw passes through the fixing hole and connects to the protective shell 40, holding the rotating bracket 20 against the protective shell 40. The silicone plug is located inside the fixing hole at the end away from the protective shell 40.

[0093] In some embodiments, please refer to Figures 2 to 6 , Figures 12 to 16 The detection assembly 30 also includes a button 33, a lens cap 34, a lens mount 35, an inner bracket 36, a power circuit board 37, and a light guide post 38. The power circuit board 37 is electrically connected to the lead wire 70, the radar detection unit 31, and the infrared sensor 32. The button 33 is electrically connected to the power circuit board 37. The inner bracket 36 intersects the first direction Z and is fixed to the protective shell 40. The radar detection unit 31 is fixed to the inner bracket 36.

[0094] The lens cap 34 is fixedly connected to the protective housing 40 via the lens mount 35. The protective housing 40 is provided with a lens hole and a light guide hole. The lens cap 34 is located inside the lens hole, and the infrared sensor 32 is positioned facing the lens cap 34. The light guide post 38 is fixed inside the light guide hole. The light guide post 38 can guide the light from outside the radar detection device 100 into the installation space, enabling the detection component 30 to sense the ambient brightness.

[0095] Optionally, button 33 may be made of flame-retardant polycarbonate (PC) material, which can suppress the combustion process and allow it to be used for a period of time when on fire. Optionally, button 33 may be used to control the power supply to or off of the radar detection device 100.

[0096] The lens cap 34 is light-transmitting, and the light emitted by the infrared sensor 32 can pass through the lens cap 34 to detect objects outside the radar detection device 100.

[0097] Optionally, the inner support 36 may be made of flame-retardant polycarbonate (PC) material, which can suppress the combustion process and can be used for a period of time in the event of a fire.

[0098] Optionally, the light guide post 38 may include polymethyl methacrylate (PMMA), also known as acrylic or plexiglass, which is transparent to light.

[0099] Optionally, the radar detection unit 31 is a radar circuit board module. Optionally, the infrared sensor 32 is an infrared circuit board module.

[0100] In some embodiments, please refer to Figures 5 to 9 The mounting body 11 includes an annular plate 111 and a mounting plate 112. The annular plate 111 is coaxial with the annular flange 12. The thickness direction of the annular plate 111 is radially related to itself, and the annular plate 111 forms a through hole 1111. The mounting plate 112 is annular and connected to the outer surface of the annular plate 111. The mounting plate 112 is coaxial with the annular flange 12 and is connected to the end of the annular plate 111 away from the first abutment structure 22 along the first direction Z. The mounting plate 112 is provided with a plurality of mounting holes 1121 extending along the first direction Z. Screws are used to pass through the mounting holes 1121 to connect with other structures outside the radar detection device 100, which can hold and fix the mounting bracket 10 to other structures, making it convenient to fix the mounting bracket 10 to other structures outside the radar detection device 100. The mounting plate 112 is located within the space enclosed by the annular wall 21, which is used to prevent the mounting plate 112 from moving radially.

[0101] Optionally, the mounting plate 112, the annular plate 111, and the annular flange 12 are integral structures, and the mounting plate 112, the annular plate 111, and the annular flange 12 can be formed simultaneously, resulting in a fast production speed for the mounting bracket 10.

[0102] In other embodiments, please refer to Figure 11 , Figure 15 and Figure 17 The radar detection device 100 also includes a pair of ceiling spring clips 60 connected to the mounting bracket 10, facilitating installation of the radar detection device 100 after drilling an opening in the ceiling. The ceiling spring clips 60 are also called spring clip lugs. Optionally, the ceiling spring clips 60 are made of piano wire.

[0103] In some embodiments, please refer to Figures 1 to 9The radar detection device 100 includes a mounting bracket 10, a rotating bracket 20, and a detection assembly 30. The rotating bracket 20 is rotatably connected to the mounting bracket 10 about a rotation axis 25 extending along a first direction Z. The rotating bracket 20 includes an annular wall 21 and a first abutment structure 22 and a second abutment structure 23 connected to the annular wall 21. The mounting bracket 10 is disposed within the space enclosed by the annular wall 21, the axis of the annular wall 21 coincides with the rotation axis 25, and the annular wall 21 is used to prevent the mounting bracket 10 from moving radially along the annular wall 21.

[0104] The mounting bracket 10 includes a mounting body 11 and an annular flange 12. The mounting body 11 has a through hole 1111 coaxial with the annular flange 12. The annular flange 12 is connected to the wall of the through hole 1111, and the axis of the annular flange 12 coincides with the rotation axis 25. The mounting body 11 is located within the space enclosed by an annular wall 21, which prevents the mounting body 11 from moving radially along the annular wall 21. A first abutting structure 22 abuts against one end of the mounting body 11 along the first direction Z. A second abutting structure 23 is located within the through hole 1111 and includes a hook 231 and an elastic connecting arm 232. The hook 231 abuts against one end of the annular flange 12 away from the first abutting structure 22 along the first direction Z. The elastic connecting arm 232 connects the hook 231 and the first abutting structure 22.

[0105] The detection assembly 30 is connected to the rotating bracket 20. The detection assembly 30 includes a radar detection unit 31 and an infrared sensor 32. The detection direction P of the radar detection unit 31 intersects with the first direction Z. The infrared sensor 32 is oriented in the first direction Z.

[0106] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A radar detection apparatus, characterized by, include: Mounting bracket; A rotating bracket is rotatably connected to the mounting bracket about a rotation axis extending in a first direction; A detection component is connected to the rotating bracket. The detection component includes a radar detection unit, and the detection direction of the radar detection unit intersects with the first direction.

2. The radar detection apparatus of claim 1, wherein The rotating bracket includes an annular wall and a first abutting structure and a second abutting structure connected to the annular wall. The mounting bracket is disposed within the space enclosed by the annular wall. The axis of the annular wall coincides with the rotation axis. The annular wall is used to prevent the mounting bracket from moving radially along the annular wall. The first abutting structure and the second abutting structure abut against different positions of the mounting bracket; in the first direction, the first abutting structure and the second abutting structure are respectively used to prevent the mounting bracket from moving in opposite directions.

3. The radar detection apparatus of claim 2, wherein, The mounting bracket includes a mounting body and an annular flange connected to the mounting body, wherein the axis of the annular flange coincides with the rotation axis. The mounting body is disposed within the space enclosed by the annular wall, which is used to prevent the mounting body from moving radially along the annular wall; the first abutting structure abuts against one end of the mounting body along the first direction; the second abutting structure abuts against one end of the annular flange away from the first abutting structure along the first direction.

4. The radar detection apparatus of claim 3, wherein The second abutment structure includes a hook and an elastic connecting arm, wherein the hook abuts against the annular flange; and the elastic connecting arm connects the hook and the first abutment structure.

5. The radar detection apparatus of claim 4, wherein The side of the annular flange that is radially away from the mounting body is a transition annular surface, and the transition annular surface is coaxial with the annular flange; the annular flange is inclined along the first direction near the end face of the first abutment structure and forms a first conical surface, and the first conical surface is coaxial with the annular flange; in the first direction, the first conical surface and the transition annular surface intersect at the edge of the first conical surface near the hook; And / or, The annular flange is inclined away from the end face of the first abutment structure along the first direction and forms a second conical surface, the second conical surface being coaxial with the annular flange; in the first direction, the second conical surface intersects with the transition annular surface at the edge of the second conical surface near the first abutment structure, and the hook abuts against the second conical surface.

6. The radar detection apparatus of claim 4, wherein The hook has a transition surface, which is disposed opposite to the side of the mounting body that connects to the annular flange; the end of the hook away from the annular flange along the first direction is inclined to the annular flange and forms a first inclined surface; in the first direction, the first inclined surface intersects the transition surface at the edge of the first inclined surface near the annular flange; and / or, The hook is inclined at the end near the annular flange along the first direction and forms a second inclined surface away from the annular flange; in the first direction, the second inclined surface intersects the transition surface at the edge of the second inclined surface away from the first abutting structure, and the second inclined surface abuts against the annular flange.

7. The radar detection apparatus of claim 5 or 6, wherein The second abutment structure is provided with at least three hooks, and the hooks of the multiple second abutment structures are distributed around the rotation axis, and the angle between any two adjacent hooks and the rotation axis is less than or equal to 180°.

8. The radar detection apparatus of any one of claims 2-6, wherein, The radar detection device also includes an anti-slip pad sandwiched between the first abutment structure and the mounting bracket.

9. The radar detection apparatus of any one of claims 3-6, wherein, The mounting body is provided with a through hole coaxial with the annular flange, the annular flange is connected to the wall of the through hole, and the second abutment structure is located inside the through hole.

10. The radar detection apparatus of any one of claims 1-6, wherein, The detection component also includes an infrared sensor, which is oriented in the first direction.

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