Laser measuring device and sweeping robot

Abstract

The utility model discloses a laser measuring device and a sweeping robot, the laser measuring device comprises a fixed base, a rotating part and an emitting part, the rotating part comprises a rotating platform, a receiving assembly and a light machine module, the rotating platform is rotatably installed on the fixed base, the receiving assembly and the light machine module are both arranged on the rotating platform, and the emitting part is arranged on the receiving assembly. The receiving assembly comprises a receiving circuit board and a receiving coil, the receiving coil is arranged on one side, close to the fixed base, of the receiving circuit board, and the optical machine module is directly and electrically connected with the receiving coil; the transmitting part comprises a first transmitting circuit board, a transmitting coil and a second transmitting circuit board, the first transmitting circuit board is arranged between the fixed base and the receiving assembly, and the transmitting coil is arranged on the side, close to the receiving circuit board, of the first transmitting circuit board; the second transmitting circuit board is arranged on the side, away from the rotating platform, of the fixed base and electrically connected with the first transmitting circuit board. According to the utility model, the problems of long production period and complex assembly of a laser measuring device are solved.

Description

Technical Field

[0001] The present application relates to the technical field of measuring devices, and in particular to a laser measuring device and a sweeping robot. Background Art

[0002] As a radar device, laser radar has the advantages of high precision, strong anti-interference ability, and fast response speed, so it is suitable for a variety of use environments. As described above, the laser radar can emit a laser beam as a detection signal to the surrounding three-dimensional space, and the laser beam is reflected by the objects in the surrounding space and becomes an echo signal and returns. The laser radar compares the received echo signal with the emitted detection signal to obtain relevant information about the surrounding objects such as distance and speed.

[0003] As the central sensor of many smart devices, laser radar is widely used, for example, in environmental exploration and map construction of sweeping robots. The current mainstream laser radar (also known as laser measuring device) is mainly composed of a driving part and a rotating part, wherein the driving part uses a motor to drive the rotating part to rotate through a belt transmission, and a laser transmitter and a laser receiver are arranged on the rotating part to rotate and measure the distance of surrounding obstacles. The optical-mechanical module used for laser emission and receiving laser reflection signals in existing laser measuring devices is often designed to be rotatable. The laser measuring device uses the principle of wireless power transmission to transmit electric energy or / and data. The specific implementation method is: the transmitting coil is wound on a winding outer frame, the receiving coil is wound or laid on the winding inner frame, and the transmitting coil uses wireless power transmission to supply power to the receiving coil. It can be seen that the existing laser measuring device uses the principle of wireless power transmission to transmit electric energy or / and data. The winding frame of the coil must be made first, and then the winding is performed, resulting in a long production cycle and complex assembly. Utility Model Content

[0004] The main purpose of the present application is to provide a laser measuring device and a sweeping robot to solve the problem mentioned in the background technology that the laser measuring device must first prepare a winding skeleton of the coil and then perform winding, resulting in a long production cycle and complex assembly.

[0005] According to one aspect of the present application, a laser measuring device is provided, comprising:

[0006] Fixed base;

[0007] A rotating component, the rotating component includes a rotating platform, a receiving assembly and an optical-mechanical module, the rotating platform is rotatably mounted on the fixed base, the receiving assembly and the optical-mechanical module are both arranged on the rotating platform, the receiving assembly includes a receiving circuit board and a receiving coil, the receiving coil is arranged on a side of the receiving circuit board close to the fixed base, and the optical-mechanical module is directly electrically connected to the receiving coil;

[0008] A transmitting component, the transmitting component includes a first transmitting circuit board, a transmitting coil and a second transmitting circuit board, the first transmitting circuit board is arranged between the fixed base and the receiving component, the transmitting coil is arranged on a side of the first transmitting circuit board close to the receiving circuit board, the second transmitting circuit board is arranged on a side of the fixed base away from the rotating platform and is electrically connected to the first transmitting circuit board, the second transmitting circuit board is used to transmit electrical energy to the first transmitting circuit board and receive data information generated by the optical machine module, and the transmitting coil is used to transmit electrical energy to the receiving coil.

[0009] Furthermore, a fixing bracket is provided on the fixing base, and the fixing bracket is located between the receiving component and the second transmitting circuit board. The first transmitting circuit board is covered on one end of the fixing bracket close to the receiving circuit board and has a predetermined gap with the receiving circuit board.

[0010] Furthermore, a first avoidance hole is provided on the rotating platform, the receiving circuit board is provided at an end of the rotating platform away from the fixed bracket and covers the first avoidance hole, and the first transmitting circuit board is provided at an end of the fixed bracket close to the receiving circuit board and is located in the first avoidance hole, wherein, along the axial direction of the first avoidance hole, the projected outer contour of the receiving coil is at least partially located within the projected outer contour of the first avoidance hole.

[0011] Further, along the axial direction of the first avoidance hole, the projected outer contour of the receiving coil is located inside the projected outer contour of the first avoidance hole; and / or, along the axial direction of the first avoidance hole, the projected outer contour of the transmitting coil is located inside the projected outer contour of the receiving coil.

[0012] Further, the fixing bracket is provided with a second avoidance hole, the second avoidance hole is arranged through along the thickness direction of the fixing base, the second transmitting circuit board is covered and arranged at an end of the second avoidance hole away from the first transmitting circuit board, the first transmitting circuit board is covered and arranged at an end of the second avoidance hole close to the receiving circuit board, and the first transmitting circuit board is provided with a third avoidance hole connected with the second avoidance hole, and the laser measuring device further includes:

[0013] An optical communication lamp, the optical communication lamp is arranged at a position of the receiving circuit board close to the third avoidance hole, and the optical communication lamp is used to convert the data information received by the receiving circuit board into an optical signal;

[0014] An infrared receiver, wherein the infrared receiver is arranged at a position of the second transmitting circuit board close to the third avoidance hole, and the infrared receiver is used to convert the received optical signal into an electrical signal.

[0015] Furthermore, the fixing bracket comprises:

[0016] a first annular boss, wherein the second avoidance hole is disposed in the first annular boss;

[0017] A snap-on assembly is provided on one end of the first annular boss close to the receiving circuit board, and the snap-on assembly is at least used to snap-on the first transmitting circuit board to the first annular boss.

[0018] Furthermore, the first annular boss is provided with a plurality of avoidance grooves spaced apart along its circumference, and the groove depths of the plurality of avoidance grooves extend along the axial direction of the first annular boss so as to divide the first annular boss into at least a plurality of connecting bosses, and the snap-on assembly is arranged at one end of the connecting boss close to the receiving circuit board.

[0019] Further, the connecting boss includes a plurality of first connecting bosses, and the buckle assembly includes:

[0020] A buckle connection surface, the buckle connection surface is arranged at one end of at least one of the first connection bosses close to the receiving circuit board;

[0021] A first snap-on protrusion, wherein the first snap-on protrusion is a structure protruding from the inner wall surface of the first annular protrusion along the radial direction of the first annular protrusion, the first snap-on protrusion is arranged at one end of at least another of the first connecting protrusions close to the receiving circuit board, and the distance from the snap-on table to the receiving circuit board is greater than the distance from the side of the first snap-on protrusion close to the snap-on table to the receiving circuit board.

[0022] Further, the buckle table and the first buckle protrusion each include a plurality, and the plurality of buckle tables and the first buckle protrusions are alternately arranged on different first connecting protrusions; and / or, a plug hole is provided on one of the first connecting protrusions, and the plug hole is provided through the thickness direction of the fixed base, and the emitting component further includes:

[0023] A connecting plug-in is disposed in the plug-in hole and is used to electrically connect the second transmitting circuit board with the first transmitting circuit board.

[0024] Furthermore, the rotating component further includes a bearing, the connecting boss further includes a plurality of second connecting bosses, and any of the second connecting bosses is disposed between two adjacent first connecting bosses, and the buckle assembly further includes:

[0025] The second snap-connecting protrusion is a structure that protrudes from the outer wall surface of the first annular boss along the radial direction of the first annular boss. The second snap-connecting protrusion includes a plurality of second snap-connecting protrusions, and the plurality of second snap-connecting protrusions are arranged one by one at one end of the plurality of second connection protrusions close to the receiving circuit board. The bearing is snapped to the fixed base through the second snap-connecting protrusion, and the inner wall surface of the first avoidance hole is fixedly connected to the outer peripheral surface of the bearing.

[0026] Furthermore, it also includes:

[0027] An angle measuring component is used to measure the rotation angle of the rotating platform.

[0028] Furthermore, a fourth avoidance hole is further provided on the rotating platform, and the fourth avoidance hole is provided through the axial direction of the first avoidance hole, and the angle measurement component includes:

[0029] A second annular boss, the second annular boss is disposed around the outer circumference of the fixed bracket, a plurality of flanges are disposed at one end of the second annular boss close to the rotating platform, and the plurality of flanges are spaced apart along the circumference of the second annular boss;

[0030] A photoelectric sensor is provided at a position of the receiving circuit board close to the fourth avoidance hole, and the photoelectric sensor is used to record a rotation angle of the rotating platform relative to the second annular boss.

[0031] Furthermore, an annular avoidance groove is provided on one side of the rotating platform close to the second annular boss, and the annular avoidance groove is connected to the fourth avoidance hole, and the second annular boss is at least partially located in the annular avoidance groove.

[0032] Furthermore, it also includes:

[0033] A driving assembly, the driving assembly includes a motor, a transmission wheel and a transmission belt, the motor is arranged on a side of the fixed base away from the rotating platform, and the motor includes an output shaft; the transmission wheel is arranged on a side of the fixed base close to the rotating platform and is fixedly connected to the output shaft; the transmission belt is sleeved on the outer circumference of the transmission wheel and the rotating platform.

[0034] Further, the receiving coil comprises a first conducting wire, and the first conducting wire is a conducting wire spirally etched on the receiving circuit board; and / or,

[0035] The transmitting coil includes a second conducting wire, and the second conducting wire is a conducting wire spirally wound around and etched on the first transmitting circuit board.

[0036] Further, the area on the receiving circuit board where the receiving coil is arranged is the first area, the area on the first transmitting circuit board where the transmitting coil is arranged is the second area, and the projection of the second area on the receiving circuit board at least partially covers the first area.

[0037] According to another aspect of the present application, a sweeping robot is provided, and the sweeping robot includes the laser measuring device.

[0038] Compared with the prior art, the technical solution of this application has at least the following technical effects:

[0039] The laser measuring device provided by the present application has a receiving circuit board arranged on its rotating platform, and a first transmitting circuit board arranged between the fixed base and the rotating platform. When the rotating platform is installed on the fixed base, the receiving circuit board and the first transmitting circuit board for power transmission are installed. The assembly is simple, convenient and fast, which shortens the production cycle of the laser measuring device and reduces the processing cost and labor cost. Moreover, during the rotation of the rotating platform, the first transmitting circuit board will not only not interfere with the rotation of the receiving circuit board, but the first transmitting circuit board can also transmit electrical energy to the receiving coil on the rotating receiving circuit board through the transmitting coil arranged thereon, thereby ensuring that the optical machine module electrically connected to the receiving circuit board can continuously obtain working electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0041] Figure 1 A schematic diagram of the appearance structure of a laser measuring device provided in one embodiment of the utility model;

[0042] Figure 2 is a cross-sectional view of a laser measuring device;

[0043] Figure 3 This is a schematic diagram of the explosion of the laser measurement device;

[0044] Figure 4 It is a schematic diagram of the structure of the receiving circuit board;

[0045] Figure 5 is a schematic structural diagram of a first transmitting circuit board;

[0046] Figure 6It is a schematic diagram of the assembly structure of the rotating parts;

[0047] Figure 7 It is a schematic diagram of assembling the fixed base and the first transmitting circuit board;

[0048] Figure 8 for Figure 7 Schematic diagram of the decomposition of

[0049] Fig. 9 It is a structural diagram of a fixed base.

[0050] The above drawings include the following reference numerals:

[0051] 10. Fixed base; 11. First annular boss; 111. Second avoidance hole; 112. Avoidance groove; 113. First connection boss; 131. Insertion hole; 114. Second connection boss; 12. Buckle table; 13. First buckle protrusion; 14. Second buckle protrusion; 15. Second annular boss; 151. Flange; 16. Cover; 17. Mounting groove; 20. Rotating platform; 21. First avoidance hole; 22. Fourth avoidance hole; 23. Annular avoidance groove; 24. Mounting seat; 30. Optical machine module; 3 1. Laser emitting board; 32. Laser receiving board; 33. Filter; 34. Optical bracket; 35. Transmitting lens; 36. Receiving lens; 40. Receiving circuit board; 41. Receiving coil; 42. Optical communication lamp; 43. Photoelectric sensor; 50. First transmitting circuit board; 51. Transmitting coil; 52. Third avoidance hole; 60. Bearing; 70. Second transmitting circuit board; 71. Infrared receiver; 80. PIN needle; 81. Connecting block; 82. Via hole; 90. Motor; 91. Transmission wheel; 92. Transmission belt. DETAILED DESCRIPTION

[0052] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0055] To solve the problem that the laser measuring device must first make the coil winding frame and then wind the wire, which leads to a long production cycle and complicated assembly. Figures 1 to 8 The first embodiment of the utility model provides a laser measuring device, which includes a fixed base 10, a rotating component and a transmitting component. Figure 6 As shown, the rotating component includes a rotating platform 20, a receiving assembly and an optical machine module 30. The rotating platform 20 is rotatably mounted on the fixed base 10, and the receiving assembly and the optical machine module 30 are both arranged on the rotating platform 20. Figure 4 As shown, the receiving assembly includes a receiving circuit board 40 and a receiving coil 41. The receiving coil 41 is arranged on the side of the receiving circuit board 40 close to the fixed base 10. The optical module 30 is directly electrically connected to the receiving coil 41. The optical module 30 uses the power provided by the receiving coil 41 to measure the distance, speed and other data information of the surrounding obstacles during the rotation of the rotating platform 20. Figure 2 , Figure 3 , Figure 5 as well as Figure 8 As shown, the transmitting component includes a first transmitting circuit board 50, a transmitting coil 51 and a second transmitting circuit board 70. The first transmitting circuit board 50 is arranged between the fixed base 10 and the receiving component. The transmitting coil 51 is arranged on the side of the first transmitting circuit board 50 close to the receiving circuit board 40. The second transmitting circuit board 70 is arranged on the side of the fixed base 10 away from the rotating platform 20 and is electrically connected to the first transmitting circuit board 50. Among them, the second transmitting circuit board 70 is used to transmit electric energy to the first transmitting circuit board 50 and receive data information generated by the optical machine module 30, and the transmitting coil 51 is used to transmit electric energy to the receiving coil 41.

[0056] The transmitting coil 51 in this embodiment is directly arranged on the first transmitting circuit board 50, and the receiving coil 41 is arranged on the receiving circuit board 40. There is no need to arrange a winding frame for winding the corresponding coil in the laser measuring device. When the first transmitting circuit board 50 and the receiving circuit board 40 are installed, the transmitting coil 51 and the receiving coil 41 are installed at the same time, and the assembly is simple and efficient. In the process of the rotating platform 20 driving the optical machine module 30 to rotate, the transmitting coil 51 on the first transmitting circuit board 50 can use wireless power transmission to supply power to the receiving coil 41 on the receiving circuit board 40, and the receiving coil 41 then transmits the electrical energy to the optical machine module 30 electrically connected thereto for use.

[0057] It can be seen that the laser measuring device provided in this embodiment, by setting a receiving circuit board 40 on its rotating platform 20, setting a first transmitting circuit board 50 between the fixed base 10 and the rotating platform 20, when the rotating platform 20 is installed on the fixed base 10, the receiving circuit board 40 and the first transmitting circuit board 50 for power transmission are installed, and the assembly is simple, convenient and fast, which shortens the production cycle of the laser measuring device and reduces the processing cost and labor cost. Moreover, during the rotation of the rotating platform 20, the first transmitting circuit board 50 will not only not interfere with the rotation of the receiving circuit board 40, but the first transmitting circuit board 50 can also transmit electrical energy to the receiving coil 41 on the rotating receiving circuit board 40 through the transmitting coil 51 set thereon, thereby ensuring that the optical machine module 30 electrically connected to the receiving circuit board 40 can continuously obtain working power.

[0058] Among them, Figure 3 and Figure 8 As shown, in this embodiment, the second transmitting circuit board 70 can be connected to a power source and a sweeping robot (the second transmitting circuit board 70 can also be connected to a drone, a home service robot, a vehicle, etc.). In the process of the optical machine module 30 rotating with the rotating platform 20, the second transmitting circuit board 70 transmits electrical energy to the first transmitting circuit board 50, so that the transmitting coil 51 on the first transmitting circuit board 50 transmits the electrical energy to the receiving coil 41 on the receiving circuit board 40 in a wireless transmission manner. The receiving coil 41 can transmit the electrical energy to the optical machine module 30 electrically connected thereto for use. After the optical machine module 30 measures the corresponding distance, speed and other data information, the second transmitting circuit board 70 then conveys these data information to the corresponding sweeping robot, so that the sweeping robot makes corresponding actions according to the received data information. For example, the sweeping robot learns from the data information that there is an obstacle in a certain direction at a certain distance from itself, so that it avoids the obstacle and performs cleaning work during the sweeping process.

[0059] The receiving coil 41 in this embodiment includes a first conductive wire, which is a conductive wire etched in a spiral shape on the receiving circuit board 40. One end of the first conductive wire is connected to the positive electrode interface of the optical machine module 30 and the other end is connected to the negative electrode interface of the optical machine module 30 to realize power supply to the optical machine module 30. The transmitting coil 51 includes a second conductive wire, which is a conductive wire etched in a spiral shape on the first transmitting circuit board 50. One end of the second conductive wire is connected to the positive electrode interface of the power supply and the other end is connected to the negative electrode interface of the power supply. When the second conductive wire is energized, the transmitting coil 51 formed by the second conductive wire can transmit electrical energy to the receiving coil 41 formed by the first conductive wire. In this embodiment, the receiving coil 41 is directly etched on the receiving circuit board 40, and the receiving coil 41 is etched on the receiving circuit board 40. Compared with the method of winding the coil on the skeleton, the processing is simple and the assembly is efficient.

[0060] Among them, the area on the receiving circuit board 40 where the receiving coil 41 is arranged is the first area, and the area on the first transmitting circuit board 50 where the transmitting coil 51 is arranged is the second area, and the projection of the second area on the receiving circuit board 40 at least partially covers the first area, thereby ensuring that the transmitting coil 51 on the first transmitting circuit board 50 can effectively transmit electric energy to the receiving coil 41 on the receiving circuit board 40. Specifically, in this embodiment, the first area on the receiving circuit board 40 etched with the first conductive wire is coaxially arranged with the second area on the first transmitting circuit board 50 etched with the second conductive wire, thereby ensuring that the transmitting coil 51 is directly opposite to the receiving coil 41 along the thickness direction of the first transmitting circuit board 50, so that the transmitting coil 51 is more efficient in transmitting electric energy to the receiving coil 41.

[0061] In this embodiment, a fixed bracket is provided on the fixed base 10, and the fixed bracket is located between the receiving component and the second transmitting circuit board 70. The first transmitting circuit board 50 is provided at one end of the fixed bracket close to the receiving circuit board 40 and has a predetermined gap with the receiving circuit board 40. In this embodiment, by providing the first transmitting circuit board 50 on the fixed bracket, a better energy transmission gap is ensured between the transmitting coil 51 and the receiving coil 41 on the receiving circuit board 40. At the same time, in terms of assembly, the installation height of the first transmitting circuit board 50 along the first direction is pre-defined by the fixed bracket, so that when installing, the first transmitting circuit board 50 where the transmitting coil 51 is located can be directly covered on one end of the fixed bracket close to the receiving circuit board 40, and the assembly is efficient and convenient, so that the first transmitting circuit board 50 and the receiving circuit board 40 can transmit electricity at a better predetermined gap. Moreover, when the rotating platform 20 rotates, the receiving component, the optical machine module 30 and other components on the rotating platform 20 will not interfere with the transmitting components, the fixed bracket, etc., which greatly improves the working safety of the laser measuring device.

[0062] like Figure 2As shown, the rotating platform 20 in this embodiment is provided with a first avoidance hole 21, and the receiving circuit board 40 is arranged at one end of the rotating platform 20 away from the fixed bracket and covers the first avoidance hole 21. Therefore, when installing the receiving circuit board 40, the receiving circuit board 40 does not need to be inserted into the first avoidance hole 21 of the rotating platform 20 for alignment and calibration installation, which avoids the cumbersomeness of installation and avoids the installation errors that may be caused by the insertion of the receiving circuit board 40 into the first avoidance hole 21 of the rotating platform 20 during installation, causing the receiving circuit board 40 to interfere with the structure or components in the first avoidance hole 21 and damage the components on the receiving circuit board 40. Secondly, the first transmitting circuit board 50 is arranged at one end of the fixed bracket close to the receiving circuit board 40 and is located in the first avoidance hole 21, wherein, along the axial direction of the first avoidance hole 21, the projected outer contour of the receiving coil 41 is at least partially located in the projected outer contour of the first avoidance hole 21, so that the receiving coil 41 can receive the electric energy transmitted from the transmitting coil 51 on the first transmitting circuit board 50 through the first avoidance hole 21. In this embodiment, the axial direction of the first avoidance hole 21 is the thickness direction of the fixed base 10, that is, Figure 2 The arrow X shown indicates a direction (this direction is hereinafter referred to as the first direction).

[0063] Preferably, the projected outer contour of the receiving coil 41 in this embodiment is completely located within the projected outer contour of the first avoidance hole 21. At this time, the receiving coil 41 can receive all the energy transmitted from the transmitting coil 51 through the first avoidance hole 21. Specifically, the projected outer contour of the transmitting coil 51 along the axial direction of the first avoidance hole 21 in this embodiment is located within the projected outer contour of the receiving coil 41. That is, the projected outer contour of the transmitting coil 51 completely overlaps with the projected outer contour of the receiving coil 41 or is completely covered by the projected outer contour of the receiving coil 41, and when the projected outer contour of the transmitting coil 51 is equal to the projected outer contour area of ​​the receiving coil 41, the transmitting coil 51 and the receiving coil 41 can be coaxially arranged, so that all the energy of the transmitting coil 51 can be transmitted to the receiving coil 41 through the first avoidance hole 21, which greatly improves the efficiency of transmitting electrical energy from the transmitting coil 51 to the receiving coil 41.

[0064] The rotating component also includes a bearing 60. The fixed bracket is at least partially connected to the inner wall of the first avoidance hole 21 through the bearing 60, so that the rotating platform 20 can rotate relative to the fixed base 10 or the fixed bracket under the action of the bearing 60. The first transmitting circuit board 50 is covered and arranged at one end of the fixed bracket close to the receiving circuit board 40, and there is a predetermined gap between the first transmitting circuit board 50 and the receiving circuit board 40. In this embodiment, by arranging the first transmitting circuit board 50 at one end of the fixed bracket close to the receiving circuit board 40, the predetermined gap between the first transmitting circuit board 50 and the receiving circuit board 40 meets the ideal power transmission gap, ensuring that the transmitting coil 51 on the first transmitting circuit board 50 can efficiently and stably transmit electrical energy to the receiving coil 41 on the receiving circuit board 40.

[0065] like Figure 2 and Fig. 9 As shown, the fixed bracket of this embodiment is provided with a second avoidance hole 111, and the second avoidance hole 111 is arranged along the thickness direction (i.e., the first direction) of the fixed base 10. The second transmitting circuit board 70 is arranged to cover the end of the second avoidance hole 111 away from the first transmitting circuit board 50, that is, the second transmitting circuit board 70 is located at the bottom of the fixed base 10 away from the rotating platform 20 and covers the second avoidance hole 111. The first transmitting circuit board 50 is arranged to cover the end of the second avoidance hole 111 close to the receiving circuit board 40, and the first transmitting circuit board 50 is provided with a third avoidance hole 52 connected to the second avoidance hole 111. The data information measured by the optical machine module 30 in this embodiment can be first transmitted to the receiving circuit board 40. In this regard, in order to realize the sending of the data information measured by the optical machine module 30 to the second transmitting circuit board 70, the laser measuring device in this embodiment also includes an optical communication lamp 42 and an infrared receiver 71. The optical communication lamp 42 is arranged at a position of the receiving circuit board 40 close to the third avoidance hole 52, and the optical communication lamp 42 is used to convert the data information received by the receiving circuit board 40 into an optical signal. The infrared receiver 71 is arranged at a position of the second transmitting circuit board 70 near the third avoidance hole 52, and the infrared receiver 71 is used to convert the received optical signal into an electrical signal. It can be seen that this embodiment forms a transmission channel for transmitting the optical signal generated by the optical communication lamp 42 to the infrared receiver 71 through the third avoidance hole 52 on the first transmitting circuit board 50 and the second avoidance hole 111 on the fixed bracket, so as to ensure that the infrared receiver 71 can receive the optical signal in a timely and effective manner. After receiving the optical signal, the infrared receiver 71 converts the optical signal into an electrical signal again. The second transmitting circuit board 70 sends the electrical signal converted by the infrared receiver 71 to the sweeping robot, and the sweeping robot can recognize the data information contained in the electrical signal.

[0066] In this embodiment, by arranging the first transmitting circuit board 50 and the second transmitting circuit board 70 at opposite ends of the second avoidance hole 111 of the fixing bracket, the data information measured by the optical machine module 30 is sent to the second transmitting circuit board 70 in the form of an optical signal, and the assembly efficiency of the first transmitting circuit board 50 and the working safety of the laser measuring device are improved. First, by arranging the first transmitting circuit board 50 on the fixing bracket, it is ensured that the transmitting coil 51 and the receiving coil 41 have a better energy transmission gap. At the same time, in terms of assembly, the installation height of the first transmitting circuit board 50 along the first direction is pre-defined by the fixing bracket, so that during installation, the first transmitting circuit board 50 where the transmitting coil 51 is located can be directly covered on the end of the second avoidance hole 111 close to the receiving circuit board 40, and the assembly is efficient and convenient, so that there is a predetermined power transmission gap between the first transmitting circuit board 50 and the receiving circuit board 40. This arrangement makes it unnecessary to insert the receiving circuit board 40 into the first avoidance hole 21 of the rotating platform 20 for alignment and calibration installation when installing the receiving circuit board 40, thereby avoiding the cumbersomeness of installation and avoiding the installation errors that may be caused by the insertion of the receiving circuit board 40 into the first avoidance hole 21 of the rotating platform 20 during installation, causing the receiving circuit board 40 to interfere with the structure or components in the first avoidance hole 21 and damage the components on the receiving circuit board 40. Moreover, when the rotating platform 20 rotates, the receiving circuit board 40 on the rotating platform 20, the receiving coil 41, the optical communication lamp 42 and other components on the receiving circuit board 40 will not interfere with the transmitting components, the fixing bracket, etc., which greatly improves the working safety of the laser measurement device.

[0067] See also Figures 7 and 8, the fixing bracket in this embodiment includes a first annular boss 11 and a buckle assembly. A second avoidance hole 111 is provided in the first annular boss 11. The buckle assembly is provided at one end of the first annular boss 11 close to the receiving circuit board 40, and the buckle assembly is at least used to buckle the first transmitting circuit board 50 on the first annular boss 11. The height of the first annular boss 11 extends out of the surface of the fixing base 10 in the direction close to the receiving circuit board 40. In this embodiment, the first transmitting circuit board 50 is buckled on the first annular boss 11 by the buckle assembly provided at one end of the first annular boss 11 close to the receiving circuit board 40, so that the predetermined gap between the first transmitting circuit board 50 and the receiving circuit board 40 can meet the ideal power transmission gap. At the same time, in this embodiment, the installation height of the buckle assembly on the first annular boss 11 along the first direction can be pre-defined, and the first transmitting circuit board 50 can be directly buckled on the end of the second avoidance hole 111 close to the receiving circuit board 40 through the buckle assembly, and the assembly is efficient and accurate. A predetermined gap is provided between the first transmitting circuit board 50 and the receiving circuit board 40 for effective power transmission at a higher power transmission efficiency. When installing the receiving circuit board 40, the receiving circuit board 40 does not need to be inserted into the first avoidance hole 21 of the rotating platform 20 for alignment and calibration installation, thereby avoiding the cumbersomeness of installation and possible installation errors caused by the receiving circuit board 40 being inserted into the first avoidance hole 21 of the rotating platform 20 during installation. The receiving circuit board 40 will not be interfered with by other components when rotating with the rotating platform 20, thereby achieving high working safety.

[0068] When the snap-on assembly in this embodiment snaps the first transmitting circuit board 50 onto the first annular boss 11, the third avoidance hole 52 of the first transmitting circuit board 50 can also be coaxially arranged with the second avoidance hole 111 of the first annular boss 11, ensuring that the third avoidance hole 52 is connected to the second avoidance hole 111. After the first transmitting circuit board 50 is snapped onto the first annular boss 11, the second avoidance hole 111 in the first annular boss 11 and the third avoidance hole 52 on the first transmitting circuit board 50 together constitute a transmission channel for transmitting the optical signal generated by the optical communication lamp 42 to the infrared receiver 71, and the assembly is efficient and accurate.

[0069] The first annular boss 11 is provided with a plurality of avoidance grooves 112 at intervals along its circumference, and the depth of the plurality of avoidance grooves 112 extends along the axial direction of the first annular boss 11, so as to divide the first annular boss 11 into at least a plurality of connection bosses. The snap-on assembly is provided at one end of the connection boss close to the receiving circuit board 40. In this embodiment, by dividing the first annular boss 11 into a plurality of connection bosses, in the process of snapping the first transmitting circuit board 50 onto the connection bosses through the snap-on assembly, the connection bosses, whether plastic or metal, can produce a certain deformation, thereby ensuring that the first transmitting circuit board 50 can be snapped on smoothly by the snap-on assembly.

[0070] like Figure 7 and Figure 8 As shown, the connection boss in this embodiment includes a plurality of first connection bosses 113. The snap-on assembly includes a snap-on table 12 and a first snap-on protrusion 13. The snap-on table 12 is disposed at one end of at least one first connection boss 113 close to the receiving circuit board 40. The first snap-on protrusion 13 is a structure protruding from the inner wall surface of the first annular boss 11 along the radial direction of the first annular boss 11. The first snap-on protrusion 13 is disposed at one end of at least another first connection boss 113 close to the receiving circuit board 40, and the distance from the snap-on table 12 to the receiving circuit board 40 is greater than the distance from the side of the first snap-on protrusion 13 close to the snap-on table 12 to the receiving circuit board 40. The snap-on table 12 abuts against the end face of the first transmitting circuit board 50 close to the fixed base 10, and the first snap-on protrusion 13 abuts against the end face of the first transmitting circuit board 50 close to the receiving circuit board 40. Thus, under the supporting function of the buckling table 12 and the clamping and limiting function of the first buckling protrusion 13, the first transmitting circuit board 50 is buckled to the side of the first connecting protrusion 113 close to the receiving circuit board 40. In this embodiment, the installation height of the buckling table 12 on the first connecting protrusion 113 along the first direction can be pre-set to pre-define the installation height of the first transmitting circuit board 50 on the first connecting protrusion 113. When installing the first transmitting circuit board 50, the first transmitting circuit board 50 is directly buckled to the buckling table 12 through the first buckling protrusion 13, which can ensure that there is a better energy transmission gap between the first transmitting circuit board 50 and the receiving circuit board 40. Moreover, since there is also a predetermined gap between the side of the first buckling protrusion 13 close to the receiving circuit board 40 and the receiving circuit board 40, the first buckling protrusion 13 and the first transmitting circuit board 50 will not interfere with the rotation of the receiving circuit board 40.

[0071] Therefore, in this embodiment, the first transmitting circuit board 50 is fastened to the bottom of the receiving circuit board 40 through the fastening table 12 and the first fastening protrusions 13 on the multiple first connecting protrusions 113, and the design and installation requirements are simple and the cost is low. The matching relationship between the first transmitting circuit board 50 and the receiving circuit board 40 is simplified, and there is no risk of interference by the fastening components on the first connecting protrusions 113 and the first transmitting circuit board 50 during the rotation of the receiving circuit board 40 with the rotating platform 20. In addition, since the multiple first connecting protrusions 113 are arranged at intervals from each other, whether the first connecting protrusions 113 are plastic parts or metal parts, when the first transmitting circuit board 50 is fastened, each first connecting protrusion 113 can produce a certain deformation to ensure that the first transmitting circuit board 50 can be smoothly fastened to the fastening table 12 by the first fastening protrusions 13.

[0072] In order to improve the stability of the first emitting circuit board 50 on the first connecting boss 113, the buckling table 12 and the first buckling protrusion 13 in this embodiment each include multiple. Multiple buckling table 12 and first buckling protrusion 13 are alternately arranged on different first connecting bosses 113. In addition, in order to prevent the first emitting circuit board 50 from being deflected after being buckled on the fixing bracket, multiple buckling table 12 can be arranged on at least two first connecting bosses 113 arranged opposite to each other along the radial direction of the first annular boss 11. Specifically, as Figures 7 to 9 As shown, in this embodiment, the first connection bosses 113 include four, and the four first connection bosses 113 are arranged at intervals along the circumference of the first annular boss 11. Among them, one or more (such as two, three, etc.) buckling table surfaces 12 are respectively arranged on the two first connection bosses 113 arranged radially opposite to each other along the first annular boss 11, so that the first transmitting circuit board 50 is stably supported by the buckling table surfaces 12 on the two oppositely arranged first connection bosses 113, preventing the first transmitting circuit board 50 from being buckled on the first connection bosses 113 and causing unexpected deflection to affect power transmission. One or more first buckling protrusions 13 are respectively arranged on the other two first connection bosses 113 arranged radially opposite to each other along the first annular boss 11. The thickness of the portion of the first connection boss 113 provided with the first buckling boss 13 along the radial direction of the first annular boss 11 is thinner than the thickness of the portion of the first connection boss 113 not provided with the first buckling boss 13, so that the first buckling boss 13 can be opened by a slight force to buckle the first emitting circuit board 50 on the buckling table 12. When there is one first buckling boss 13, it can be a convex structure extending along the width direction of the first connection boss 113 and protruding from the inner wall surface of the first connection boss 113. When there are multiple first buckling bosses 13, they can be multiple convex structures arranged at intervals or adjacently along the width direction of the first connection boss 113 and protruding from the inner wall surface of the first connection boss 113, so that the first emitting circuit board 50 is stably and firmly buckled on the buckling table 12 through the first buckling boss 13.

[0073] like Figure 8 and Fig. 9 As shown, one of the first connection bosses 113 is provided with a plug hole 131, and the plug hole 131 is arranged through the thickness direction of the fixed base 10. The transmitting component also includes a connecting plug, which is arranged in the plug hole 131, and the connecting plug is used to electrically connect the second transmitting circuit board 70 with the first transmitting circuit board 50. Specifically, the plug hole 131 in this embodiment is arranged on one of the first connection bosses 113 provided with the buckle table 12, and the plug hole 131 passes through the buckle table 12 to the side of the fixed base 10 provided with the second transmitting circuit board 70. The first transmitting circuit board 50 is covered on the plug hole 131 and supported by the buckle table 12 around the plug hole 131. As a result, one end of the connecting plug can be conveniently electrically connected to the part of the first transmitting circuit board 50 located in the plug hole 131, and the other end is electrically connected to the part of the second transmitting circuit board 70 located in the plug hole 131. The assembly efficiency of the first transmitting circuit board 50 and the second transmitting circuit board 70 on the fixed base 10 is improved.

[0074] Specifically, Figure 8 As shown, the connection plug-in in this embodiment includes a PIN pin 80 and a connection block 81. The PIN pin 80 is a metal material used in the connector to complete electrical conduction. The PIN pin 80 in this embodiment includes two, and two connection holes are arranged at intervals on the connection block 81. The two PIN pins 80 are respectively arranged in the two connection holes of the connection block 81 to be insulated from each other. The connection block 81 connects the two PIN pins 80 to the plug hole 131. Among them, two vias 82 electrically connected to the PIN pin 80 are arranged on the first transmitting circuit board 50 and the second transmitting circuit board 70. One end of one of the PIN pins 80 is electrically connected to one of the vias 82 on the second transmitting circuit board 70, and the other end is electrically connected to one of the vias 82 on the first transmitting circuit board 50 that is electrically connected to the transmitting coil 51. One end of the other PIN pin 80 is electrically connected to another via 82 on the second transmitting circuit board 70, and the other end is electrically connected to another via 82 on the first transmitting circuit board 50 that is electrically connected to the transmitting coil 51, so as to realize the transmission of electric energy on the second transmitting circuit board 70 to the transmitting coil 51 on the first transmitting circuit board 50.

[0075] like Figure 8 and Fig. 9As shown, the connection boss in this embodiment also includes a plurality of second connection bosses 114, and any second connection boss 114 is arranged between two adjacent first connection bosses 113. The buckle assembly also includes a second buckle protrusion 14, which is a structure protruding from the outer wall surface of the first annular boss 11 along the radial direction of the first annular boss 11. The second buckle protrusion 14 includes a plurality of second buckle protrusions 14, and the plurality of second buckle protrusions 14 are arranged one by one at one end of the plurality of second connection bosses 114 close to the receiving circuit board 40. The bearing 60 is stably buckled on the fixed base 10 through the plurality of second buckle protrusions 14, and the inner wall surface of the first avoidance hole 21 is fixedly connected to the outer peripheral surface of the bearing 60. An annular buckle groove capable of buckling the bearing 60 is formed between the second buckle protrusions 14 on the plurality of second connection bosses 114 and the surface of the fixed base 10, so that the bearing 60 is stably and firmly buckled on the fixed base 10 through the annular buckle groove. If it is necessary to strengthen the fastening strength between the bearing 60 and the second connecting boss 114 , it is only necessary to set fixing glue between the inner circumference of the bearing 60 and the outer wall of the second connecting boss 114 to more firmly stick the bearing 60 , which makes the assembly simple and efficient.

[0076] The laser measuring device provided in this embodiment further includes an angle measuring component, which is used to measure the rotation angle of the rotating platform 20. The rotating platform 20 is provided with a fourth avoidance hole 22, which is arranged to penetrate the first avoidance hole 21 along the axial direction. Figure 3 and Figure 7 As shown, the angle measurement assembly includes a second annular boss 15 and a photoelectric sensor 43. The second annular boss 15 is arranged around the outer periphery of the fixed bracket. Specifically, the second annular boss 15 is arranged around the outer periphery of the first annular boss 11 and is arranged coaxially with the first annular boss 11, thereby saving the space occupied by the first annular boss 11 and the second annular boss 15 on the fixed base 10. A plurality of flanges 151 are arranged at one end of the second annular boss 15 close to the rotating platform 20. The plurality of flanges 151 are arranged at intervals along the circumference of the second annular boss 15 to form a scale structure capable of measuring the rotation angle of the rotating platform 20 by the photoelectric sensor 43. The photoelectric sensor 43 is arranged at a position of the receiving circuit board 40 close to the fourth avoidance hole 22, and the photoelectric sensor 43 is used to record the rotation angle of the rotating platform 20 relative to the second annular boss 15. During the rotation of the rotating platform 20, the photoelectric sensor 43 determines the rotation angle of the rotating platform 20 relative to the second annular boss 15 by detecting the number of flanges 151 on the second annular boss 15.

[0077] like Figure 2As shown, a circular avoidance groove 23 is further provided on one side of the rotating platform 20 close to the second circular boss 15, and the circular avoidance groove 23 is connected to the fourth avoidance hole 22, and the second circular boss 15 is at least partially located in the circular avoidance groove 23. Thus, the distance between the flange 151 on the second circular boss 15 and the photoelectric sensor 43 on the receiving circuit board 40 is shortened, thereby improving the detection sensitivity and accuracy of the photoelectric sensor 43.

[0078] In order to enable the rotating platform 20 to drive the optical machine module 30 to rotate, so that the optical machine module 30 can measure the data information such as the distance and / or speed of the surrounding obstacles during the rotation process. The laser measurement device in this embodiment also includes a driving component, and the driving component includes a motor 90, a transmission wheel 91 and a transmission belt 92. The motor 90 is arranged on the side of the fixed base 10 away from the rotating platform 20, and the motor 90 includes an output shaft. The transmission wheel 91 is arranged on the side of the fixed base 10 close to the rotating platform 20 and is fixedly connected to the output shaft. The transmission belt 92 is sleeved on the outer peripheral surface of the transmission wheel 91 and the rotating platform 20. After starting the motor 90, the output shaft of the motor 90 drives the transmission wheel 91 to rotate, and the transmission belt 92 transfers the rotational kinetic energy of the transmission wheel 91 to the rotating platform 20 to drive the rotating platform 20 to rotate relative to the fixed base 10. Of course, in order to ensure the stability of the transmission belt 92, a corresponding transmission groove is provided on the rotating platform 20, and the transmission belt 92 is sleeved in the transmission groove.

[0079] like Figure 3 and Figure 6 As shown, the optical machine module 30 in this embodiment includes a laser emitting plate 31, a laser receiving plate 32, a filter 33, an optical bracket 34, and an emitting lens 35 and a receiving lens 36 arranged in the optical bracket 34. The laser emitting plate 31, the laser receiving plate 32 and the filter 33 are installed on one side of the optical bracket 34. A mounting seat 24 is also provided on the rotating platform 20. The bottom of the optical bracket 34 near the receiving circuit board 40 is connected to the receiving circuit board 40, and the side of the optical bracket 34 away from the laser emitting plate 31 and the laser receiving plate 32 is also fixedly connected to the mounting seat 24, so as to ensure the stability of the optical machine module 30 during the rotation of the rotating platform 20. The laser emitting plate 31 and the laser receiving plate 32 are electrically connected to the receiving coil 41 on the receiving circuit board 40 to obtain the electrical energy required for work from the receiving coil 41. The laser emitting plate 31 emits laser to the surrounding environment of the laser measuring device, the laser receiving plate 32 is used to receive the reflected laser, and the filter 33 is used to filter out unnecessary light.

[0080] During the operation of the optical machine module 30, the receiving coil 41 on the receiving circuit board 40 generates inductive coupling with the transmitting coil 51 on the first transmitting circuit board 50. After receiving the electric energy, the receiving coil 41 supplies the electric energy to the laser transmitting plate 31 and the laser receiving plate 32 of the optical machine module 30. The light emitted by the laser transmitting plate 31 through the transmitting lens 35 is a point laser. At this time, the optical machine module 30 emits a beam of laser and times it. After the laser is emitted, the laser receiving plate 32 receives the light reflected back from the object through the receiving lens 36 (the reflected laser is focused on the photosensitive chip of the laser receiving plate 32). Then the optical machine module 30 calculates the distance value according to the laser emission time and the laser reception time, and calculates the angle value of the rotation of the rotating boss according to the number of flanges 151 on the second annular boss 15 detected by the photoelectric sensor 43. The optical machine module 30 transmits the distance value and the angle value to the receiving circuit board 40, and the receiving circuit board 40 sends the distance value, angle value and other data information to the second transmitting circuit board 70 through the optical communication light 42 arranged thereon, so that the second transmitting circuit board 70 outputs the distance value, angle value and other data information to the corresponding sweeping robot.

[0081] In addition, the laser measuring device in this embodiment also includes a cover body 16, and a mounting groove 17 is provided on the fixed base 10. The cover body 16 is adapted to the mounting groove 17, and the first annular boss 11, the second annular boss 15, and the transmission wheel 91 are all provided at the bottom of the mounting groove 17. The cover body 16 is provided to cover the mounting groove 17 and to enclose the mounting groove 17 to form an accommodation space for accommodating the rotating component, so as to improve the protection performance of the rotating component. The accommodation space can prevent the receiving component and the key components such as the receiving circuit board 40 and the optical machine module 30 in the rotating component from being affected by the external environment.

[0082] The second embodiment of the present invention provides a sweeping robot, which includes a laser measuring device. The specific structure of the laser measuring device can be found in the content provided in the first embodiment of the present invention, and will not be described in detail in this embodiment.

[0083] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0084] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0085] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser measuring device, characterized in that: include: Fixed base (10); A rotating component, the rotating component comprising a rotating platform (20), a receiving component and an optical machine module (30), the rotating platform (20) being rotatably mounted on the fixed base (10), the receiving component and the optical machine module (30) being both arranged on the rotating platform (20), the receiving component comprising a receiving circuit board (40) and a receiving coil (41), the receiving coil (41) being arranged on a side of the receiving circuit board (40) close to the fixed base (10), and the optical machine module (30) being directly electrically connected to the receiving coil (41); A transmitting component, the transmitting component comprising a first transmitting circuit board (50), a transmitting coil (51) and a second transmitting circuit board (70), wherein the first transmitting circuit board (50) is arranged between the fixed base (10) and the receiving component, the transmitting coil (51) is arranged on a side of the first transmitting circuit board (50) close to the receiving circuit board (40), and the second transmitting circuit board (70) is arranged on a side of the fixed base (10) away from the rotating platform (20) and is electrically connected to the first transmitting circuit board (50).

2. The laser measuring device according to claim 1, characterized in that: A fixing bracket is provided on the fixing base (10), and the fixing bracket is located between the receiving component and the second transmitting circuit board (70). The first transmitting circuit board (50) is arranged at one end of the fixing bracket close to the receiving circuit board (40) and has a predetermined gap with the receiving circuit board (40).

3. The laser measuring device according to claim 2, characterized in that: The rotating platform (20) is provided with a first avoidance hole (21); the receiving circuit board (40) is arranged at an end of the rotating platform (20) away from the fixed bracket and covers the first avoidance hole (21); the first transmitting circuit board (50) is arranged at an end of the fixed bracket close to the receiving circuit board (40) and is located in the first avoidance hole (21); wherein, along the axial direction of the first avoidance hole (21), the projected outer contour of the receiving coil (41) is at least partially located within the projected outer contour of the first avoidance hole (21).

4. The laser measuring device according to claim 3, characterized in that: Along the axial direction of the first avoidance hole (21), the projected outer contour of the receiving coil (41) is located inside the projected outer contour of the first avoidance hole (21); and / or, along the axial direction of the first avoidance hole (21), the projected outer contour of the transmitting coil (51) is located inside the projected outer contour of the receiving coil (41).

5. The laser measuring device according to claim 3, characterized in that: The fixing bracket is provided with a second avoidance hole (111), the second avoidance hole (111) is arranged to penetrate along the thickness direction of the fixing base (10), the second transmitting circuit board (70) is arranged to cover an end of the second avoidance hole (111) away from the first transmitting circuit board (50), the first transmitting circuit board (50) is arranged to cover an end of the second avoidance hole (111) close to the receiving circuit board (40), and the first transmitting circuit board (50) is provided with a third avoidance hole (52) connected with the second avoidance hole (111), and the laser measuring device further comprises: An optical communication light (42), the optical communication light (42) being arranged at a position of the receiving circuit board (40) close to the third avoidance hole (52); An infrared receiver (71), the infrared receiver (71) being arranged at a position of the second transmitting circuit board (70) close to the third avoidance hole (52).

6. The laser measuring device according to claim 5, characterized in that: The fixing bracket comprises: A first annular boss (11), wherein the second avoidance hole (111) is provided in the first annular boss (11); A snap-on assembly, the snap-on assembly being arranged at one end of the first annular boss (11) close to the receiving circuit board (40), the snap-on assembly being used at least to snap-on the first transmitting circuit board (50) to the first annular boss (11).

7. The laser measuring device according to claim 6, characterized in that: The first annular boss (11) is provided with a plurality of avoidance grooves (112) spaced apart along its circumference, and the groove depth of the plurality of avoidance grooves (112) extends along the axial direction of the first annular boss (11) so as to divide the first annular boss (11) into at least a plurality of connecting bosses, and the snap-on assembly is arranged at one end of the connecting boss close to the receiving circuit board (40).

8. The laser measuring device according to claim 7, characterized in that: The connecting boss comprises a plurality of first connecting bosses (113), and the buckle assembly comprises: A buckle connection surface (12), the buckle connection surface (12) being arranged at one end of at least one of the first connection bosses (113) close to the receiving circuit board (40); A first snap-fit ​​protrusion (13), wherein the first snap-fit ​​protrusion (13) is a structure protruding from the inner wall surface of the first annular protrusion (11) along the radial direction of the first annular protrusion (11), the first snap-fit ​​protrusion (13) is arranged at one end of at least another of the first connecting protrusions (113) close to the receiving circuit board (40), and the distance from the snap-fit ​​surface (12) to the receiving circuit board (40) is greater than the distance from the side of the first snap-fit ​​protrusion (13) close to the snap-fit ​​surface (12) to the receiving circuit board (40).

9. The laser measuring device according to claim 8, characterized in that: The buckling table (12) and the first buckling protrusion (13) each include a plurality, and the plurality of buckling table (12) and the first buckling protrusion (13) are alternately arranged on different first connecting protrusions (113); and / or, one of the first connecting protrusions (113) is provided with a plug hole (131), and the plug hole (131) is arranged through the thickness direction of the fixing base (10), and the emitting component further includes: A connecting plug-in is arranged in the plug-in hole (131), and is used to electrically connect the second transmitting circuit board (70) with the first transmitting circuit board (50).

10. The laser measuring device according to claim 8, characterized in that: The rotating component further comprises a bearing (60), the connecting boss further comprises a plurality of second connecting bosses (114), and any of the second connecting bosses (114) is arranged between two adjacent first connecting bosses (113), and the buckle assembly further comprises: A second snap-fit ​​protrusion (14), wherein the second snap-fit ​​protrusion (14) is a structure protruding from the outer wall surface of the first annular boss (11) along the radial direction of the first annular boss (11), wherein the second snap-fit ​​protrusion (14) comprises a plurality of second snap-fit ​​protrusions (14), and the plurality of second snap-fit ​​protrusions (14) are arranged one by one correspondingly at one end of the plurality of second connection protrusions (114) close to the receiving circuit board (40), wherein the bearing (60) is snap-fitted to the fixed base (10) via the second snap-fit ​​protrusion (14), and the inner wall surface of the first avoidance hole (21) is fixedly connected to the outer peripheral surface of the bearing (60).

11. The laser measuring device according to claim 3, characterized in that: Also includes: An angle measuring component is used to measure the rotation angle of the rotating platform (20).

12. The laser measuring device according to claim 11, characterized in that: The rotating platform (20) is further provided with a fourth avoidance hole (22), the fourth avoidance hole (22) being arranged to penetrate along the axial direction of the first avoidance hole (21), and the angle measurement component comprises: A second annular boss (15), the second annular boss (15) being arranged around the outer circumference of the fixed bracket, a plurality of flanges (151) being arranged at one end of the second annular boss (15) close to the rotating platform (20), and the plurality of flanges (151) being arranged at intervals along the circumference of the second annular boss (15); A photoelectric sensor (43), wherein the photoelectric sensor (43) is arranged at a position of the receiving circuit board (40) close to the fourth avoidance hole (22), and the photoelectric sensor (43) is used to record the rotation angle of the rotating platform (20) relative to the second annular boss (15).

13. The laser measuring device according to claim 12, characterized in that: An annular avoidance groove (23) is provided on one side of the rotating platform (20) close to the second annular boss (15), and the annular avoidance groove (23) is connected to the fourth avoidance hole (22), and the second annular boss (15) is at least partially located in the annular avoidance groove (23).

14. The laser measuring device according to any one of claims 1 to 13, characterized in that: Also includes: A drive assembly, the drive assembly comprising a motor (90), a transmission wheel (91) and a transmission belt (92), the motor (90) being arranged on a side of the fixed base (10) away from the rotating platform (20), the motor (90) comprising an output shaft; the transmission wheel (91) being arranged on a side of the fixed base (10) close to the rotating platform (20) and fixedly connected to the output shaft; the transmission belt (92) being sleeved on the outer circumference of the transmission wheel (91) and the rotating platform (20).

15. The laser measuring device according to any one of claims 1 to 13, characterized in that: The receiving coil (41) comprises a first conductive wire, wherein the first conductive wire is a conductive wire etched on the receiving circuit board (40) in a spiral shape; and / or, The transmitting coil (51) comprises a second conducting wire, which is a conducting wire etched on the first transmitting circuit board (50) in a spiral shape.

16. The laser measuring device according to any one of claims 1 to 13, characterized in that: The area on the receiving circuit board (40) where the receiving coil (41) is arranged is the first area, the area on the first transmitting circuit board (50) where the transmitting coil (51) is arranged is the second area, and the projection of the second area on the receiving circuit board (40) at least partially covers the first area.

17. A sweeping robot, characterized in that: The sweeping robot comprises the laser measuring device according to any one of claims 1 to 16.

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