TOF ranging and projection sensor

Abstract

The invention relates to the technical field of sensors, and particularly discloses a TOF ranging and projection sensor which comprises a mounting base, a mounting groove is formed in the inner side of the mounting base, slots are formed in the two sides in the mounting groove, sliding plates are slidably connected to the inner sides of the slots, and a sensor body is fixedly mounted on the inner sides of the sliding plates. By arranging the sensor main body, the device can detect the hand waving or foot waving action change of a user through the TOF object detection distance measuring sensor, the film projection sheet and the TOF distance measuring function in the use period, TOF laser is infrared light, and the sensing range cannot be recognized by naked eyes of people, so that the device can be used for detecting the hand waving or foot waving action change of the user. Film projection lamplight is added, lamp beads on the LED lamp panel are adopted to irradiate the film with the image, refraction and conduction are conducted through the lens, the guide pattern is projected in the induction range through visible light, a user can accurately recognize the induction range, and then the sensor is better and effectively triggered.

Description

Technical Field

[0001] The present invention relates to the technical field of sensors, in particular to a TOF distance measurement and projection sensor. Background Art

[0002] As an advanced technology combination, TOF object detection and distance measurement + projection sensor has extremely wide applications in many fields such as dishwashers, refrigerators, and automobiles. The sensor mainly relies on the principle of time of flight and can accurately sense the distance between objects and devices. When consumers stretch their hands or feet close to the corresponding equipment, the sensor will detect the action at an amazing speed and respond quickly to achieve the door opening operation. In dishwashers and refrigerators, this excellent technology greatly facilitates the user's door opening and closing operations. Users no longer need to directly touch the door body with their hands, which not only keeps the equipment clean and hygienic, but also provides great convenience for users who hold items with both hands. In the automotive field, the sensor can also be used to achieve a convenient door opening method, which not only improves the user experience, but also adds a strong sense of technology. The wide application of this sensor has undoubtedly brought consumers a more intelligent, convenient and comfortable life experience;

[0003] However, the existing TOF inspection and ranging + projection sensors have some shortcomings in the application process. In most cases, bolts are used to assist installation. Although this method ensures the stability of the installation to a certain extent, it is usually necessary to use tools such as screwdrivers to assist in the subsequent disassembly and maintenance, which makes the disassembly and assembly process more cumbersome and inconvenient. At the same time, during use, the projection lens on the surface of the projection sensor will accumulate dust over time. This dust will obviously have an adverse effect on the light transmittance of the lens, resulting in poor overall light transmittance, which in turn affects its inspection effect. It can be seen that the existing technology does have certain defects during use and urgently needs to be improved and optimized. Summary of the invention

[0004] The object of the present invention is to provide a TOF ranging and projection sensor to solve the problem in the above background technology that the existing sensor is inconvenient to disassemble and assemble and the surface is easily blocked by dust.

[0005] To achieve the above-mentioned object, the present invention provides a TOF ranging and projection sensor, comprising a mounting seat, a mounting groove is provided on the inner side of the mounting seat, slots are provided on both sides of the mounting groove, a slide plate is slidably connected to the inner side of the slot, a sensor body is fixedly installed on the inner side of the slide plate, a clamping mechanism is fixedly installed on the bottom of the mounting seat, the sensor body is installed on the inner side of the mounting groove through the clamping mechanism, a dustproof mechanism is fixedly installed on the front side of the sensor body, and the dustproof mechanism covers the front end of the sensor body;

[0006] The sensor body includes a shell, which is inserted into the inside of the installation groove, and the two sides of the shell are fixedly connected to the inner side of the skateboard. An LED light board is fixedly installed on the inner side of the shell, and a TOF object detection and ranging sensor is fixedly installed on the lower front end of the LED light board. A fixed sleeve is fixedly installed on the outer side of the LED lamp bead at the upper front end of the LED light board, and a film with an image is fixedly connected to the inner side of the fixed sleeve. A lens is fixedly installed on the front end of the fixed sleeve through the shell.

[0007] Furthermore, the dustproof mechanism includes a slip ring, a drive assembly and a scratch assembly, the slip ring is rotatably connected to the upper end of the front side of the shell, the slip ring is slidably connected to the outer side of the fixed sleeve, the drive assembly is fixedly installed on the top of the shell, and the scratch assembly is fixedly installed on the front side of the slip ring.

[0008] Furthermore, the driving assembly includes a first micro motor and a gear ring, the first micro motor is fixedly mounted on the top of the housing, the gear ring is fixedly mounted on the outside of the slip ring, a gear is fixedly mounted on the output end of the first micro motor, and the gear and the gear ring are meshingly connected.

[0009] Furthermore, a covering protective shell is fixedly mounted on the upper front end of the shell, and the covering protective shell covers the outer sides of the gear ring and the gear.

[0010] Furthermore, the scratch assembly includes a guide rail, which is fixedly installed on the middle part of the front side of the slip ring, and a second micro motor is fixedly installed on the outer end of the guide rail, and a micro screw is fixedly installed on the output end of the second micro motor through the guide rail, and the micro screw is rotatably connected to the inner side of the guide rail, and a slider is threadedly connected to the outer surface of the micro screw, and the slider is slidably connected to the inner side of the guide rail, and a connecting rod is fixedly installed on the front side of the slider, and a scratch silicone plate is fixedly connected to the end of the connecting rod, and the inner side of the scratch silicone plate is fit-connected to the outer surface of the lens.

[0011] Furthermore, the overall cross-sectional shape of the inner side of the slide plate and the slide groove is set to be a convex shape, and the overall cross-sectional shape of the inner side of the slide block and the guide rail is also set to be a convex shape.

[0012] Furthermore, a sensing window is provided at the lower end of the front side of the housing, and the sensing window is arranged directly in front of the TOF object detection and ranging sensor.

[0013] Furthermore, the mounting mechanism includes a rail frame and a slot, the rail frame is fixedly installed in the middle of the bottom of the mounting seat, the slot is opened on the front side of the shell and is located below the sensing window, the interior of the rail frame is fixedly connected to a limit spring, a slide rod is fixedly installed at the front end of the limit spring, the front end of the slide rod is fixedly connected to a limit plate, the upper end of the back side of the limit plate is fixedly connected to a limit block, and the end of the limit block is inserted into the inner side of the slot.

[0014] Furthermore, a push plate is fixedly connected to the rear side of the bottom of the slide rod, mounting plates are fixedly installed on both sides of the mounting seat, mounting holes are opened at both ends of the mounting plate, and the mounting holes are set as countersunk holes.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, in the present invention, by setting a sensor body, the device can use the TOF object detection distance measurement sensor and the film projection during use. The TOF distance measurement function is used to detect changes in the user's waving or waving movements. Since the TOF laser is infrared light, the human eye cannot identify the sensing range. The present invention adds film projection light, uses the lamp beads on the LED lamp board to illuminate the film with the image, and then refracts and transmits it through the lens, projecting the guide pattern into the sensing range through visible light, so that the user can accurately identify the sensing range, and thus better and more effectively trigger the sensor.

[0017] Secondly, in the present invention, the device exhibits excellent performance by cleverly setting up the card installation mechanism. When in use, the shell with the slide plate is inserted into the slot, the push plate is adjusted to drive the slide bar to move forward, so that the limit spring is stretched, and the limit plate and the limit block also move forward. When the shell is fully inserted into the installation slot, the push plate is released, the limit spring is reset, and the limit block is driven to insert into the card slot to complete the assembly of the mounting seat and the sensor body. After that, the device is installed by screws in conjunction with the mounting holes on the mounting plate. When disassembly and maintenance are required, the push plate is adjusted forward again, and the push plate drives the slide plate to push the limit plate and the limit block out of the limit slot. After the shell loses the limit, it can be pulled out of the installation slot. Overall, the card installation mechanism makes the device easy to quickly disassemble and overhaul, improves the convenience of disassembly and maintenance during use, is very worthy of promotion and application, and brings great convenience to users.

[0018] Thirdly, in the present invention, the reasonably arranged dust-proof mechanism enables the sensor to play a powerful role in the application. The second micro motor is started to drive the micro screw to rotate, and the slider is driven to slide on the inside of the guide rail, thereby assisting in driving the connecting rod and the scratch silicone plate to fit the outer surface of the lens. Then the first micro motor is started to drive the gear to rotate. Because the gear is engaged with the gear ring, the gear ring drives the slip ring to rotate, so that the guide rail and the connecting rod rotate. The rotation of the connecting rod drives the scratch silicone plate to rotate around the lens, and the lens is rotated and scratched to clean, effectively avoiding the lens from being blocked and maintaining its accuracy. When the sensor body needs to be used, the second micro motor is started to drive the micro screw to drive the slider to move upward, so that the scratch silicone plate leaves the lens to avoid obstruction. This adjustable design can be cleaned flexibly and quickly according to needs, without manual wiping, which is more convenient when used hidden inside the equipment, greatly improving the practicality and reliability of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the rear view structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the front view structure of the split state in the present invention;

[0022] Figure 4 This is a schematic diagram of the rear view structure of the present invention in a split state;

[0023] Figure 5 It is a schematic diagram of the split state side test structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the internal structure of the housing in the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the dustproof mechanism in the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the clamping mechanism in the present invention.

[0027] In the figure: 1. mounting seat; 2. mounting slot; 3. slot; 4. slide plate; 5. sensor body; 51. housing; 52. LED light board; 53. TOF object detection and ranging sensor; 54. fixing sleeve; 55. film with image; 56. lens; 6. clamping mechanism; 61. rail frame; 62. clamping slot; 63. limit spring; 64. slide bar; 65. limit plate; 66. limit block; 67. push plate; 68. mounting plate; 69. mounting hole; 7. dustproof mechanism; 71. slip ring; 72. drive assembly; 721. first micro motor; 722. gear ring; 723. gear; 73. scratch assembly; 731. guide rail; 732. second micro motor; 733. micro screw rod; 734. slider; 735. connecting rod; 736. scratch silicone plate; 8. protective shell; 9. sensing window. DETAILED DESCRIPTION

[0028] Example

[0029] See also Figure 1-Figure 8 In an embodiment of the present invention, a TOF ranging and projection sensor includes a mounting seat 1, a mounting groove 2 is provided on the inner side of the mounting seat 1, slots 3 are provided on both sides of the mounting groove 2, a slide plate 4 is slidably connected to the inner side of the slot 3, a sensor body 5 is fixedly installed on the inner side of the slide plate 4, a clamping mechanism 6 is fixedly installed on the bottom of the mounting seat 1, the sensor body 5 is installed on the inner side of the mounting groove 2 through the clamping mechanism 6, a dustproof mechanism 7 is fixedly installed on the front side of the sensor body 5, and the dustproof mechanism 7 covers the front end of the sensor body 5;

[0030] The sensor body 5 includes a shell 51, which is inserted into the interior of the mounting groove 2. Both sides of the shell 51 are fixedly connected to the inner side of the slide plate 4. An LED light board 52 is fixedly installed on the inner side of the shell 51. A TOF object detection and ranging sensor 53 is fixedly installed on the lower front end of the LED light board 52. A fixed sleeve 54 is fixedly installed on the upper front end of the LED light board 52, which is located on the outer side of the LED lamp bead. A film 55 with an image is fixedly connected to the inner side of the fixed sleeve 54. A lens 56 is fixedly installed on the front end of the fixed sleeve 54 through the shell 51. The design of the mounting seat 1 provides a stable mounting position for the sensor body 5. The setting of the mounting groove 2 and the slot 3, in conjunction with the slide plate 4, makes the installation and disassembly of the sensor body 5 more convenient. The clamping mechanism 6 further ensures the firm installation of the sensor body 5 in the mounting groove 2, and also facilitates the subsequent disassembly and maintenance, providing The convenience of maintenance is improved. The shell 51 of the sensor body 5 is connected to the skateboard 4 and can work stably after being inserted into the installation slot 2. The LED light board inside the shell 51 provides lighting for the entire device. The TOF object detection and ranging sensor at the lower end of the front side can accurately detect the distance and movement changes of the object. The fixed sleeve 54 and the film 55 with the image at the upper end of the front side cooperate with the lens 56. Through the illumination of the lamp beads on the LED light board, the guide pattern is projected in the form of visible light within the sensing range, allowing the user to accurately identify the sensing range and effectively trigger the sensor. In addition, the dustproof mechanism 7 on the front side can cover the front end of the sensor body 5 to prevent the lens 56 from being blocked by dust, maintain the accuracy of the lens 56, and improve the performance and service life of the sensor. On the whole, the sensor is reasonably designed, powerful, and has the advantages of high stability, easy installation and disassembly, and good dustproof performance.

[0031] See also Figure 1-Figure 5 and Figure 7The dustproof mechanism 7 includes a slip ring 71, a drive assembly 72 and a scratch assembly 73. The slip ring 71 is rotatably connected to the upper front end of the housing 51, and the slip ring 71 is slidably connected to the outer side of the fixed sleeve 54. The drive assembly 72 is fixedly installed on the top of the housing 51, and the scratch assembly 73 is fixedly installed on the front side of the slip ring 71. The drive assembly 72 includes a first micro motor 721 and a gear ring 722. The first micro motor 721 is fixedly installed on the top of the housing 51, and the gear ring 722 is fixedly installed on the outer side of the slip ring 71. A gear 723 is fixedly installed on the output end of the first micro motor 721, and the gear 723 and the gear ring 722 are meshed and connected. A covering protective shell 8 is fixedly installed on the upper front end of the housing 51, and the covering protective shell 8 covers the outer sides of the gear ring 722 and the gear 723. The slip ring 71 is rotatably connected to the upper front end of the housing 51 and is slidably connected to the outer side of the fixed sleeve 54, which provides a stable installation foundation and a flexible motion track for the scratch assembly 73. The first micro motor 721 in the component 72 serves as a power source. It is meshed and connected with the gear ring 722 on the outside of the slip ring 71 through the gear 723 at the output end, and can accurately drive the slip ring 71 to rotate. This transmission method is efficient and stable, ensuring the normal operation of the dustproof mechanism 7. At the same time, the covering protective shell 8 at the upper end of the front side of the shell 51 can effectively protect the gear ring 722 and the gear 723 to prevent them from being affected by the external environment, such as dust, collision, etc., thereby extending the service life of the driving component 72. The scratch component 73 is fixedly installed on the front side of the slip ring 71. When the slip ring 71 rotates, the scratch component 73 can effectively clean the front end of the sensor, especially the lens 56, to prevent dust and other impurities from adhering to the lens 56 and affecting the performance of the sensor. The design of the dustproof mechanism 7 not only improves the reliability and stability of the sensor, but also reduces the maintenance cost and usage failures caused by dust accumulation, providing a strong guarantee for the long-term stable operation of the sensor.

[0032] See also Figure 1-Figure 7The scratch assembly 73 includes a guide rail 731, which is fixedly installed in the middle of the front side of the slip ring 71. A second micro motor 732 is fixedly installed on the outer end of the guide rail 731. The output end of the second micro motor 732 passes through the guide rail 731 and is fixedly installed with a micro screw 733. The micro screw 733 is rotatably connected to the inner side of the guide rail 731. The outer surface of the micro screw 733 is threadedly connected with a slider 734. The slider 734 is slidably connected to the inner side of the guide rail 731. A connecting rod 735 is fixedly installed on the front side of the slider 734. The connecting rod The end of 735 is fixedly connected with a scratch silicone plate 736, the inner side of the scratch silicone plate 736 is fitted and connected with the outer surface of the lens 56, the overall cross-sectional shape of the slide plate 4 and the inner side of the slide groove is set to a convex shape, the overall cross-sectional shape of the slider 734 and the inner side of the guide rail 731 is also set to a convex shape, and the lower end of the front side of the housing 51 is provided with a sensing window 9, which is set in front of the TOF object detection and ranging sensor 53, and the guide rail 731 is fixed in the middle of the front side of the slip ring 71, providing a stable structural support for the entire scratch assembly 73 , the second micro motor 732 at the outer end serves as a power source, and the micro screw 733 at its output end can stably rotate inside the guide rail 731, thereby driving the threaded slider 734 to slide inside the guide rail 731, and the slider 734 and the inner side of the guide rail 731 as well as the slide plate 4 and the inner side of the slide groove are all designed with a convex overall cross-sectional shape, which can effectively prevent the slider 734 and the slide plate 4 from getting off the track during movement, ensuring the stability and accuracy of the movement, and the connecting rod 735 on the front side of the slider 734 is connected to the scratch silicone plate 736, and the inner side of the scratch silicone plate 736 is fitted and connected to the outer surface of the lens 56, which can effectively clean the lens 56 and prevent dust and other impurities from affecting the light transmittance of the lens 56 and the detection accuracy of the sensor. At the same time, the sensing window 9 opened at the lower end of the front side of the housing 51 faces the TOF object detection and ranging sensor, ensuring that the sensor can accurately receive external signals and improve the accuracy and reliability of detection. This scratch component 73 not only improves the performance and service life of the sensor, but also provides users with a more stable and efficient use experience.

[0033] See also Figure 1-Figure 5 and Figure 8The card-mounting mechanism 6 includes a rail frame 61 and a card slot 62. The rail frame 61 is fixedly installed in the middle of the bottom of the mounting seat 1. The card slot 62 is opened on the front of the shell 51 and is located at the lower side of the sensing window 9. The interior of the rail frame 61 is fixedly connected to a limit spring 63. The front end of the limit spring 63 is fixedly installed with a slide bar 64. The front end of the slide bar 64 is fixedly connected to a limit plate 65. The upper end of the back of the limit plate 65 is fixedly connected to a limit block 66. The end of the limit block 66 is inserted into the inner side of the card slot 62. The bottom rear side of the slide bar 64 is fixedly connected with a push plate 67. Both sides of the mounting seat 1 are fixedly installed with mounting plates 68. Both ends of the mounting plates 68 are opened with mounting holes 69. The mounting holes 69 are all set as countersunk holes. The rail frame 61 is fixed in the middle of the bottom of the mounting seat 1, providing a stable installation foundation for the card-mounting mechanism 6. The card slot 62 is opened on the lower side of the sensing window 9 on the front side of the shell 51, and the limit inside the rail frame 61 The spring 63, slide bar 64, limit plate 65 and limit block 66 cooperate with each other, and the limit spring 63 provides elastic support for the entire card installation process. When the shell 51 with the slide plate 4 is inserted into the installation slot 2, the push plate 67 is pushed to make the slide bar 64 move forward. At this time, the limit spring 63 is stretched, and the limit plate 65 and the limit block 66 also move forward. When the shell 51 is fully inserted into the installation slot 2, the push plate 67 is released, and the limit spring 63 is reset to drive the limit block 66 to insert into the inner side of the card slot 62, thereby completing the assembly of the mounting seat 1 and the sensor body 5. The operation is simple, firm and reliable. The mounting plates 68 on both sides of the mounting seat 1 and the countersunk mounting holes 69 at both ends are convenient for installing the device by screws, making the installation more stable and not affecting the appearance. The design of this card installation mechanism 6 makes the sensor as a whole easy to quickly disassemble and repair, improves the convenience of disassembly and maintenance during use, and brings great convenience to users.

[0034] The working principle of the present invention is: by carefully setting the sensor body 5, the device has many advantages during use. Specifically, the TOF distance measurement function can accurately detect the changes in the user's waving or waving movements through the synergistic effect of the TOF object detection distance measurement sensor 53 and the film projection film. Since the TOF laser is infrared light, the human eye cannot identify its sensing range. Therefore, the present invention innovatively adds film projection light, uses the lamp beads on the LED light board 52 to illuminate the film 55 with the image, and then refracts and transmits through the lens 56, and projects the guide pattern in the form of visible light within the sensing range. In this way, the user can accurately identify the sensing range, and then better and more effectively trigger the sensor, which greatly improves the convenience and accuracy of the sensor.

[0035] By setting the card-mounting mechanism 6, the housing 51 with the slide plate 4 can be inserted into the slot 3 during use. In this process, the push plate 67 is adjusted to drive the slide bar 64 to move forward. At this time, the limit spring 63 is stretched, and the limit plate 65 and the limit block 66 also move forward. When the housing 51 is completely inserted into the installation slot 2, the limit push plate 67 is released, and the limit spring 63 is reset immediately, driving the limit plate 65 and the limit block 66 at the upper end thereof to be inserted into the inner side of the card slot 62. At this time, the mounting seat 1 and the sensor body 5 can be completed. After the assembly is completed, the device can be installed by screwing the mounting holes 69 on the mounting plate 68. When it needs to be disassembled for maintenance, it is only necessary to adjust the push plate 67 to move forward, and the push plate 67 drives the slide plate 4 to push the limit plate 65 and the limit block 66 to move forward, and the limit block 66 can be separated from the limit groove. At this time, the shell 51 loses its limit, and the shell 51 inside the mounting groove 2 can be pulled out. It can be seen that the device as a whole is easy to disassemble and overhaul quickly, which can further improve the convenience of disassembly and maintenance during the use of the device as a whole, and is very worthy of promotion and application;

[0036] By setting the dustproof mechanism 7, the sensor can be operated by starting the second micro motor 732 during the application process, and the second micro motor 732 drives the micro screw 733 to rotate. The rotation of the micro screw 733 can drive the slider 734 to slide on the inner side of the guide rail 731. The slider 734 slides on the inner side of the guide rail 731, and then it can assist in driving the connecting rod 735 and the scratching silicone plate 736 at its end to fit to the outer surface of the lens 56. At this time, by starting the first micro motor 721 to run, the first micro motor 721 drives the gear 723 to rotate. Since the gear 723 and the gear ring 722 are meshed and connected, it can assist in driving the gear ring 722 to drive the rotation of the slip ring 71. The rotation of the slip ring 71 can drive the guide rail 731 and the connecting rod 735 at its top to rotate. The rotation of the connecting rod 735 can drive the scratch silicone plate 736 to rotate around the lens 56. At this time, the scratch silicone plate 736 can rotate and scratch the lens 56 to clean it, which can effectively prevent the lens 56 from being blocked and maintain the accuracy of the lens 56 for a long time. If the sensor body 5 needs to be used, the second micro motor 732 can be started to drive the micro screw 733 to drive the slider 734 to move upward, thereby causing the scratch silicone plate 736 to leave the lens 56. At this time, the lens 56 can be prevented from being blocked by the scratch silicone plate 736. This adjustable design can be flexibly and quickly cleaned according to specific needs without manual wiping, especially when it is hidden inside the equipment for use, it is more convenient, greatly improving the practicality and reliability of the sensor.

Claims

1. A TOF ranging and projection sensor, characterized in that: The sensor comprises a mounting seat, a mounting groove is provided on the inner side of the mounting seat, slots are provided on both sides of the mounting groove, a slide plate is slidably connected to the inner side of the slot, a sensor body is fixedly installed on the inner side of the slide plate, a clamping mechanism is fixedly installed on the bottom of the mounting seat, the sensor body is installed on the inner side of the mounting groove through the clamping mechanism, a dustproof mechanism is fixedly installed on the front side of the sensor body, and the dustproof mechanism covers the front end of the sensor body; The sensor body includes a shell, which is inserted into the inside of the installation groove, and the two sides of the shell are fixedly connected to the inner side of the skateboard. An LED light board is fixedly installed on the inner side of the shell, and a TOF object detection and ranging sensor is fixedly installed on the lower front end of the LED light board. A fixed sleeve is fixedly installed on the outer side of the LED lamp bead at the upper front end of the LED light board, and a film with an image is fixedly connected to the inner side of the fixed sleeve. A lens is fixedly installed on the front end of the fixed sleeve through the shell.

2. A TOF ranging and projection sensor according to claim 1, characterized in that: The dustproof mechanism includes a slip ring, a drive assembly and a scratch assembly. The slip ring is rotatably connected to the upper end of the front side of the shell, the slip ring is slidably connected to the outer side of the fixed sleeve, the drive assembly is fixedly installed on the top of the shell, and the scratch assembly is fixedly installed on the front side of the slip ring.

3. A TOF ranging and projection sensor according to claim 2, characterized in that: The driving assembly includes a first micro motor and a gear ring. The first micro motor is fixedly mounted on the top of the housing, the gear ring is fixedly mounted on the outside of the slip ring, a gear is fixedly mounted on the output end of the first micro motor, and the gear and the gear ring are meshed and connected.

4. A TOF ranging and projection sensor according to claim 3, characterized in that: A covering protective shell is fixedly installed on the upper end of the front side of the shell, and the covering protective shell covers the outer sides of the gear ring and the gear.

5. A TOF ranging and projection sensor according to claim 4, characterized in that: The scratch assembly includes a guide rail, which is fixedly installed on the middle part of the front side of the slip ring, a second micro motor is fixedly installed on the outer end of the guide rail, a micro screw is fixedly installed on the output end of the second micro motor passing through the guide rail, the micro screw is rotatably connected to the inner side of the guide rail, a slider is threadedly connected to the outer surface of the micro screw, the slider is slidably connected to the inner side of the guide rail, a connecting rod is fixedly installed on the front side of the slider, a scratch silicone plate is fixedly connected to the end of the connecting rod, and the inner side of the scratch silicone plate is fit-connected to the outer surface of the lens.

6. A TOF ranging and projection sensor according to claim 5, characterized in that: The overall cross-sectional shape of the inner side of the slide plate and the slide groove is set to a convex shape, and the overall cross-sectional shape of the inner side of the slide block and the guide rail is also set to a convex shape.

7. A TOF ranging and projection sensor according to claim 1, characterized in that: A sensing window is provided at the lower end of the front side of the housing, and the sensing window is arranged right in front of the TOF object detection and distance measurement sensor.

8. A TOF ranging and projection sensor according to claim 7, characterized in that: The mounting mechanism includes a rail frame and a slot, the rail frame is fixedly installed in the middle of the bottom of the mounting seat, the slot is opened on the front side of the shell and is located below the sensing window, the interior of the rail frame is fixedly connected to a limit spring, a slide bar is fixedly installed at the front end of the limit spring, the front end of the slide bar is fixedly connected to a limit plate, the upper end of the back side of the limit plate is fixedly connected to a limit block, and the end of the limit block is inserted into the inner side of the slot.

9. A TOF ranging and projection sensor according to claim 8, characterized in that: A push plate is fixedly connected to the rear side of the bottom of the slide rod, mounting plates are fixedly mounted on both sides of the mounting seat, mounting holes are opened at both ends of the mounting plate, and the mounting holes are set as countersunk holes.

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