CN219085136U

CN219085136U - Rotating support and laser radar

Info

Publication number: CN219085136U
Application number: CN202222918863.XU
Authority: CN
Inventors: 候称心; 胡攀攀; 杨昆
Original assignee: Wuhan Wanji Photoelectric Technology Co Ltd
Current assignee: Wuhan Wanji Photoelectric Technology Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-05-26
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the field of laser radars, and particularly relates to a rotating support and a laser radar. The coding teeth are integrally formed on the rotary support, so that functions of the rotary support are enriched, and the integration level of the laser radar is improved; in addition, the process flow of separately producing and manufacturing the coding disc is omitted, and the assembly procedure of the coding disc during the laser radar production is omitted, so that the production efficiency of the laser radar is improved.

Description

Rotating support and laser radar

Technical Field

The utility model relates to the technical field of laser radars, in particular to a rotating bracket and a laser radar.

Background

The laser radar is a radar system for detecting the position, speed and other characteristic quantities of an object by emitting laser beams, and the working principle of the laser radar is that a transmitter of a detection component emits laser used for detection to a detection area, then a receiver of the detection component receives reflected laser reflected from the object in the detection area, the reflected laser is compared with the emitted laser, and related information of the object such as parameters of distance, azimuth, height, speed, gesture, even shape and the like can be obtained after processing.

The mechanical laser radar comprises a base and a rotating body for installing a detection assembly, wherein the rotating body can rotate relative to the base, an angular displacement measuring device (comprising a code disc and an encoder) is required to be arranged between the rotating body and the base for resolving the rotating angle of the rotating body relative to the base, the code disc and the rotating body in the prior laser radar are two independent parts, and the code disc and the rotating body are fixed in a screw connection or gluing mode during assembly, so that the production efficiency of the laser radar is reduced, and the improvement of the integration level of the laser radar is not facilitated.

Disclosure of Invention

The embodiment of the utility model provides a rotating bracket and a laser radar, which are used for solving the technical problems that in the existing laser radar, a code wheel and a rotating body are two independent parts, and the two parts are fixed during assembly, so that the production efficiency of the laser radar is reduced, and the integration level of the laser radar is not beneficial to improvement.

To this end, according to an aspect of the present utility model, there is provided a rotary support for being rotatably provided on a base of a lidar, the rotary support having a central through hole coaxially provided with a rotation axis thereof, an end of the rotary support adjacent to the base having a receiving groove surrounding the central through hole, a portion of the rotary support between the central through hole and the receiving groove forming an inner cylinder, a portion of the rotary support located at a portion of the receiving groove remote from the inner cylinder forming an outer cylinder, an end of the outer cylinder adjacent to the base being provided with a plurality of slits around the rotation axis at intervals, and coding teeth being formed between two adjacent slits.

Optionally, the coding teeth are recessed toward a side of the interior of the accommodating groove toward a side of the coding teeth facing away from the interior of the accommodating groove.

Optionally, the outer peripheral wall of the outer cylinder comprises a sleeving section, a connecting section and a limiting section which are sequentially connected along a direction parallel to the rotation axis, the outer diameter of the sleeving section is smaller than that of the limiting section, and the sleeving section is used for sleeving and fixing a rotor of the driving motor.

Optionally, the plane at which the connecting section is located is perpendicular to the sleeving section, and the connecting section is used for abutting against one end of the rotor, which is close to the limiting section.

Optionally, an end of the swivel bracket remote from the base has a mounting projection extending in a direction parallel to the axis of rotation for mounting a support platform.

Optionally, the middle part of the supporting platform is provided with a positioning hole, one end of the rotating bracket away from the base is provided with a mounting cylinder surrounding the central through hole, the height of the mounting cylinder is larger than that of the mounting boss in the direction parallel to the rotation axis, and the part of the mounting cylinder higher than the mounting boss is used for being embedded into the positioning hole of the supporting platform.

Optionally, an end of the rotating bracket away from the base has a plurality of locking protrusions extending in a direction parallel to the rotation axis, and the height of the locking protrusions is smaller than that of the mounting protrusions, and the locking protrusions are used for mounting the circuit board.

Optionally, one end of the rotating bracket, which is far away from the base, is provided with a wire passing hole communicated with the accommodating groove, and the bottom of the accommodating groove is used for fixing an electric energy receiving coil of the wireless power supply module.

Optionally, a wiring hole communicated with the central through hole is formed in the wall of the mounting barrel, and a signal transmitting coil for fixing the magnetic induction communication module is arranged on the inner peripheral wall of the central through hole.

According to another aspect of the present utility model, there is provided a lidar comprising a base, a detection assembly, an encoder and a rotating support according to any of the above, the rotating support being rotatably arranged on the base, the detection assembly being mounted on the rotating support, the encoder being arranged on the base and corresponding to the encoding teeth.

The rotating bracket and the laser radar provided by the utility model have the beneficial effects that: compared with the prior art, the rotary support has the advantages that the plurality of openings are formed in the end, close to the base, of the outer cylinder at intervals around the rotating axis, so that coding teeth are formed between two adjacent openings, namely, the coding teeth are integrally formed on the rotary support, functions of the rotary support are enriched, and improvement of the integration level of the laser radar is facilitated; in addition, the process flow of separately producing and manufacturing the coding disc is omitted, and the assembly procedure of the coding disc during the laser radar production is omitted, so that the production efficiency of the laser radar is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is a schematic perspective view of a rotating bracket according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a rotating bracket according to another embodiment of the present utility model;

FIG. 3 is a schematic view of a rotor of a driving motor according to an embodiment of the present utility model sleeved and fixed on a sleeved section of an outer cylinder of a rotating bracket;

FIG. 4 is a schematic cross-sectional view of a rotor of a drive motor, a transmitter coil of a magnetic induction communication module, and a first bearing mounted on a rotating bracket according to an embodiment of the present utility model;

fig. 5 is a schematic view showing an external structure in which a rotor, a circuit board and a support platform of a driving motor are mounted on a rotating bracket according to an embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of the structure of FIG. 5;

fig. 7 is a schematic cross-sectional structure of a lidar according to an embodiment of the present utility model.

Description of main reference numerals:

100. a rotating bracket; 101. a central through hole; 102. a receiving groove; 1021. a glue containing groove;

110. an inner cylinder; 120. an outer cylinder; 1201. a sleeving section; 1202. a connection section; 1203. a limiting section; 121. a notch; 122. coding teeth; 130. mounting the bulge; 140. a mounting cylinder; 150. locking the bulge; 160. a wire through hole; 170. a wiring hole;

200. a driving motor; 210. a rotor; 220. a stator;

300. a support platform; 301. positioning holes;

400. a circuit board;

500. a wireless power supply module; 510. an electric power receiving coil; 520. an electric energy transmitting coil; 530. an annular magnetizer;

600. a magnetic induction communication module; 610. a signal transmitting coil; 620. a signal receiving coil; 630. a ring-shaped magnetizer;

700. a first bearing;

800. a second bearing;

900. a detection assembly;

1000. an encoder.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many other different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As described in the background art, the code wheel and the rotating body in the prior laser radar are two independent parts, and are fixed in a screw connection or cementing mode during assembly, so that the production efficiency of the laser radar is reduced, and the integration level of the laser radar is not improved.

In order to solve the above problems, according to an aspect of the present utility model, there is provided a rotary support 100 for being rotatably disposed on a base of a laser radar, as shown in fig. 1 to 2 and 7, the rotary support 100 having a central through hole 101 coaxially disposed with a rotation axis thereof, an end of the rotary support 100 near the base having a receiving groove 102 surrounding the central through hole 101, a portion of the rotary support 100 between the central through hole 101 and the receiving groove 102 forming an inner cylinder 110, a portion of the rotary support 100 located at a position of the receiving groove 102 remote from the inner cylinder 110 forming an outer cylinder 120, an end of the outer cylinder 120 near the base being provided with a plurality of slits 121 at intervals around the rotation axis, and coding teeth 122 formed between the adjacent two slits 121.

In the embodiment of the utility model, the rotary support 100 is provided with the plurality of openings 121 at intervals around the rotation axis at one end of the outer cylinder 120 close to the base, so that the coding teeth 122 are formed between two adjacent openings 121, namely, the coding teeth 122 are integrally formed on the rotary support 100, thereby enriching the functions of the rotary support 100 and being beneficial to improving the integration level of the laser radar; in addition, the process flow of separately producing and manufacturing the coding disc is omitted, and the assembly procedure of the coding disc during the laser radar production is omitted, so that the production efficiency of the laser radar is improved.

Further, it is understood that, by providing the above arrangement, each of the code teeth 122 extends in a direction approaching the base, dirt is hard to adhere to the inside of the notch 121 (i.e., the gap between two adjacent code teeth 122), and the problem of degradation in accuracy due to accumulation of dirt in the notch 121 does not occur.

Wherein the number of encoding teeth 122 is at least 37 for providing the encoder 1000 with angular information. In this embodiment, the number of the encoding teeth 122 is 37, and the encoding teeth 122 include a start tooth, a stop tooth, and a plurality of intermediate teeth between the start tooth and the stop tooth, and the pitch between two adjacent intermediate teeth, the pitch between the intermediate tooth near the start tooth and the start tooth, and the pitch between the intermediate tooth near the stop tooth and the stop tooth are equal.

The rotary support 100 may be integrally injection molded from aluminum alloy or plastic during manufacturing.

In one embodiment, as shown in fig. 2 and 4, a side of the coding teeth 122 facing the interior of the receiving groove 102 is recessed toward a side of the coding teeth 122 facing away from the interior of the receiving groove 102.

By the above arrangement, on the one hand, the accommodation space of the accommodation groove 102 can be increased, thereby improving the accommodation capacity of the accommodation groove 102; on the other hand, the thickness of the encoder teeth 122 can be reduced, thereby reducing the volume and weight of the rotary bracket 100, and also facilitating the miniaturized design of the correlation encoder.

In one embodiment, as shown in fig. 1 and 3 to 4, the outer circumferential wall of the outer cylinder 120 includes a sheathing section 1201, a connection section 1202, and a limiting section 1203 connected in sequence in a direction parallel to the rotation axis, the sheathing section 1201 having an outer diameter smaller than that of the limiting section 1203, and the sheathing section 1201 being for sheathing and fixing the rotor 210 of the driving motor 200.

By designing the outer peripheral wall of the outer tube 120 as described above, the outer peripheral wall of the outer tube 120 has a function of attaching the rotor 210 of the drive motor 200.

Here, as shown in fig. 7, the driving motor 200 is a component for driving the rotating bracket 100 to rotate around the rotation axis thereof with respect to the base in the laser radar, and drives the circuit board 400, the supporting platform 300, the detecting assembly 900 and other electrical components mounted on the rotating bracket 100 to rotate together with respect to the base by the rotation of the rotating bracket 100, so as to meet the working requirements of the laser radar. The driving motor 200 includes a stator 220 (armature) and a rotor 210 (magnet) with a circular ring structure, and all the stator and rotor 210 need to be arranged around the rotating bracket 100, through the arrangement, the rotor 210 can be sleeved and fixed (such as interference fit or glue fixation) on the outer peripheral wall of the outer cylinder 120, so that the installation of the rotor 210 is facilitated, the stator 220 and the base are fixed and sleeved outside the rotor 210, a gap is formed between the stator 220 and the rotor 210 in the diameter direction of the stator 220, in the working process, power is supplied to the stator 220, electromagnetic force is generated after power is supplied, the rotor 210 is driven to rotate relative to the stator 220 by the electromagnetic force, and the rotating bracket 100 is driven to rotate by the electromagnetic force.

In a specific embodiment, as shown in fig. 1 and 3-4, the plane of the connection section 1202 is perpendicular to the sleeve section 1201, and the connection section 1202 is used to abut against an end of the rotor 210 near the limiting section 1203.

By the above arrangement, the contact area between the rotor 210 and the outer circumferential wall of the outer cylinder 120 is increased, which is advantageous in improving the stability of the rotor 210 on the outer cylinder 120.

Specifically, glue may be dispensed on the connection section 1202, the rotor 210 is sleeved on the sleeve section 1201, and one end of the rotor 210, which is close to the limiting section 1203, is abutted against the connection section 1202, and the rotor 210 is fixed on the outer cylinder 120 by using the glue on the connection section 1202.

In one embodiment, as shown in fig. 1 and 5-6, the end of the swivel bracket 100 remote from the base has a mounting boss 130 extending in a direction parallel to the axis of rotation, the mounting boss 130 for mounting the support platform 300.

It should be noted that, as shown in fig. 7, the supporting platform 300 has a substantially disk shape and is used to carry the detecting assembly 900.

Wherein, the installation bulge 130 can be an installation block, one end of the installation block far away from the base is provided with a threaded hole, the supporting platform 300 is provided with an installation hole corresponding to the threaded hole, and the installation hole on the supporting platform 300 is screwed with the threaded hole on the installation block through a screw, so that the supporting platform 300 is fixed on the installation block.

Further, to improve the reliability of the mounting of the support platform 300, the number of mounting blocks may be set to be plural and uniformly disposed around the rotation axis.

In a specific embodiment, as shown in fig. 1, 3 and 4 to 6, the middle portion of the support platform 300 has a positioning hole 301, the end of the rotating bracket 100 remote from the base has a mounting cylinder 140 surrounding the central through hole 101, and the height of the mounting cylinder 140 is greater than the height of the mounting protrusion 130 in a direction parallel to the rotation axis, and a portion of the mounting cylinder 140 higher than the mounting protrusion 130 is used to be embedded in the positioning hole 301 of the support platform 300.

By the cooperation of the mounting cylinder 140 and the positioning hole 301 in the middle of the support platform 300, concentricity between the support platform 300 and the rotating bracket 100 is increased, and stability of the support platform 300 on the rotating bracket 100 is improved.

Specifically, the mounting cylinder 140 and the positioning hole 301 in the middle of the support platform 300 may be connected by interference fit.

Further, the height of the mounting cylinder 140 above the mounting protrusion 130 does not exceed the thickness of the support platform 300, so that the mounting cylinder 140 can be prevented from penetrating out of the upper surface of the support platform 300, and the mounting and fixing of the probe assembly 900 on the support platform 300 can be prevented.

In a specific embodiment, as shown in fig. 1 and 4-6, the end of the swivel bracket 100 remote from the base has a plurality of locking protrusions 150 extending in a direction parallel to the rotation axis, the height of the locking protrusions 150 is smaller than the height of the mounting protrusions 130, and the locking protrusions 150 are used to mount the circuit board 400.

By providing the locking protrusion 150 having a height smaller than the mounting protrusion 130, there is a height difference between the locking protrusion 150 and the mounting protrusion 130, so that the circuit board 400 and the support platform 300 can be layered in the direction of the rotation axis of the rotating bracket 100.

In addition, it is conceivable that the support platform 300 mounted on the mounting protrusion 130 can protect the circuit board 400 mounted on the locking protrusion 150 by designing as above, reducing the probability of damage to the circuit board 400 during the assembly process.

Specifically, the locking protrusion 150 may be a locking post, and a threaded hole is provided at one end of the locking post far away from the base, and the circuit board 400 is provided with a mounting hole corresponding to the threaded hole, and the circuit board 400 is fixed on the locking post by screwing a screw through the mounting hole on the circuit board 400 and the threaded hole on the locking post.

In some specific embodiments, as shown in fig. 1, 4 and 6, a wire through hole 160 is disposed at an end of the rotating bracket 100 away from the base and is communicated with the accommodating groove 102, and a bottom of the accommodating groove 102 is used for fixing an electric energy receiving coil 510 of the wireless power supply module 500.

The electric energy receiving coil 510 is fixed by utilizing the bottom of the accommodating groove 102, so that the installation and the fixation of the electric energy receiving coil 510 are facilitated; the wire through hole 160 is used for penetrating a cable so as to facilitate electrical connection between the power receiving coil 510 of the wireless power module 500 and the circuit board 400.

It should be noted that, as shown in fig. 7, the detection assembly 900 in the lidar uses the wireless power supply module 500 to supply power, where the wireless power supply module 500 includes an electric power transmitting coil 520 fixed on a base and an electric power receiving coil 510 rotating together with the rotating bracket 100, and electric power transmission is implemented between the electric power transmitting coil 520 and the electric power receiving coil 510 by electromagnetic induction.

Specifically, the electric energy receiving coil 510 is fixed on the annular magnetizer 530, the bottom of the accommodating groove 102 is provided with a glue accommodating groove 1021, the annular magnetizer 530 is embedded into the bottom of the accommodating groove 102 by dispensing glue in the glue accommodating groove 1021, and the annular magnetizer 530 is fixed by the glue.

In some specific embodiments, as shown in fig. 2, 4 and 6, a wiring hole 170 communicating with the central through hole 101 is provided on the wall of the mounting barrel 140, and a signal transmitting coil 610 for fixing the magnetic induction communication module 600 is provided on the inner peripheral wall of the central through hole 101.

The signal transmitting coil 610 is fixed by the inner peripheral wall of the central through hole 101, so that the signal transmitting coil 610 is convenient to install and fix; the trace holes 170 are used to pass through cables to facilitate electrical connection between the signal transmitting coil 610 and the circuit board 400.

As shown in fig. 7, the detection assembly 900 in the lidar uses a magnetic induction communication module 600 to transmit signals, where the magnetic induction communication module 600 includes a signal receiving coil 620 fixed on the outer peripheral wall of the central shaft of the base and a signal transmitting coil 610 rotating together with the rotating bracket 100, and information transmission is achieved between the signal transmitting coil 610 and the signal receiving coil 620 by electromagnetic induction.

Specifically, the signal transmitting coil 610 is fixed to the annular magnetizer 630, and the annular magnetizer 630 can be fixed to the inner peripheral wall of the central through hole 101 by interference fit.

In some embodiments, as shown in fig. 4 and 6-7, the mounting cylinder 140 is configured to be sleeved on the central shaft of the base, and an inner peripheral wall of the mounting cylinder 140 is configured to insert and fix the first bearing 700.

The use of the inner peripheral wall of the mounting cylinder 140 to provide a mounting carrier for the first bearing 700 (the first bearing 700 is used to achieve rotational connection between the rotating bracket 100 and the central axis of the base) enriches the functions of the rotating bracket 100, and the first bearing 700 may be pre-mounted on the rotating bracket 100 and then mounted on the base together with the rotating bracket 100 and the electrical components mounted on the rotating bracket 100 during the laser radar assembly process.

Further, a limiting protrusion surrounding the rotation axis is provided in the mounting cylinder 140 near the central through hole 101, and the limiting protrusion is used for abutting against one end of the first bearing 700 near the central through hole 101.

Providing the spacing protrusion facilitates mounting spacing of the first bearing 700.

In some embodiments, as shown in fig. 4 and 6-7, an end of the inner barrel 110 near the base on the peripheral side wall within the receiving slot 102 is used to nest and secure the second bearing 800.

The function of the rotating bracket 100 is enriched by providing a mounting carrier for the second bearing 800 (the second bearing 800 is used to realize the rotational connection between the rotating bracket 100 and the base) by the inner circumferential wall of the mounting cylinder 140.

In summary, the rotary support 100 is integrally formed with the coding teeth 122, and the coding disc does not need to be manufactured separately, so that the processing and assembling procedures are saved, and the rotary support 100 can be used as a load to mount and fix the rotor 210 of the driving motor 200, the supporting platform 300, the circuit board 400, the electric energy receiving coil 510 of the wireless power supply module 500, the signal transmitting coil 610 of the magnetic induction communication module 600, the first bearing 700 and the second bearing 800, and has the advantages of abundant and various functions and high integration level.

According to another aspect of the present utility model, there is also provided a lidar, as shown in fig. 7, which includes a base, a detecting assembly 900, an encoder 1000, and the rotating bracket 100 in any of the above embodiments, wherein the rotating bracket 100 is rotatably disposed on the base, the detecting assembly 900 is mounted on the rotating bracket 100, and the encoder 1000 is disposed on the base and corresponds to the encoding teeth 122.

Since the lidar has the rotating bracket 100 in the above embodiment, the lidar also has advantages and benefits of the rotating bracket 100, which are not described herein.

In addition, it is conceivable that the rotor 210 of the driving motor 200, the circuit board 400, the supporting platform 300, the detecting assembly 900, the power receiving coil 510 of the wireless power supply module 500, the signal transmitting coil 610 of the magnetic induction communication module 600, the first bearing 700, and the second bearing 800 are previously mounted and fixed on the rotating bracket 100 to form one rotating assembly during the assembly of the laser radar due to the high integration degree and the abundant functions of the rotating bracket 100; the encoder 1000, the electric energy transmitting coil of the wireless power supply module 500, the signal receiving coil 620 of the magnetic induction communication module 600, the main control board and the like are fixed on the base to form a fixed assembly, and then the rotary assembly and the fixed assembly are assembled in a modularized manner, so that the assembly efficiency of the laser radar is improved.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be assessed as that of the appended claims.

Claims

1. The utility model provides a runing rest for rotate and set up on laser radar's base, its characterized in that, the runing rest has the central through-hole that sets up rather than the axis of rotation is coaxial, the runing rest is close to the one end of base has around the holding groove of central through-hole, the runing rest is located the center through-hole with the part between the holding groove forms the inner tube, the runing rest is located the holding groove is kept away from the part of inner tube forms the urceolus, the urceolus is close to the one end of base is encircleed the axis of rotation interval is provided with a plurality of openings, adjacent two form the coding tooth between the opening.

2. The rotating bracket according to claim 1, wherein a side of the code tooth facing the inside of the accommodation groove is recessed to a side of the code tooth facing away from the inside of the accommodation groove.

3. The rotating bracket according to claim 1 or 2, characterized in that the outer circumferential wall of the outer cylinder comprises a sheathing section, a connecting section and a limiting section, which are sequentially connected in a direction parallel to the rotation axis, the sheathing section having an outer diameter smaller than an outer diameter of the limiting section, the sheathing section being for sheathing and fixing a rotor of a driving motor.

4. A swivel bracket according to claim 3, wherein the connecting section is arranged in a plane perpendicular to the sleeve section, and the connecting section is arranged to abut against an end of the rotor adjacent to the limiting section.

5. The swivel mount of claim 1, wherein an end of the swivel mount remote from the base has a mounting boss extending in a direction parallel to the axis of rotation for mounting a support platform.

6. The rotating bracket according to claim 5, wherein a positioning hole is provided in a middle portion of the support platform, a mounting cylinder surrounding the center through hole is provided at an end of the rotating bracket remote from the base, a height of the mounting cylinder is larger than a height of the mounting boss in a direction parallel to the rotation axis, and a portion of the mounting cylinder higher than the mounting boss is used to be embedded in the positioning hole of the support platform.

7. The rotating bracket according to claim 6, wherein an end of the rotating bracket remote from the base has a plurality of locking projections extending in a direction parallel to the rotation axis, the locking projections having a height smaller than a height of the mounting projections, the locking projections being for mounting a circuit board.

8. The rotating bracket according to claim 7, wherein one end of the rotating bracket far away from the base is provided with a wire passing hole communicated with the accommodating groove, and the bottom of the accommodating groove is used for fixing an electric energy receiving coil of a wireless power supply module.

9. The rotary bracket according to claim 7, wherein a wiring hole which is communicated with the central through hole is arranged on the wall of the mounting cylinder, and a signal transmitting coil which is used for fixing the magnetic induction communication module is arranged on the inner peripheral wall of the central through hole.

10. A lidar comprising a base, a detection assembly, an encoder and a rotating support according to any of claims 1 to 9, wherein the rotating support is rotatably arranged on the base, the detection assembly is arranged on the rotating support, and the encoder is arranged on the base and corresponds to the encoding teeth.