Headband type head lamp with high-beam and low-beam effects

Abstract

The invention discloses a head band type head lamp with a high beam and low beam effect, and particularly relates to the technical field of head lamps, the head band type head lamp comprises a head band shell, a support frame, a sleeve block and an automatic switching mechanism; wherein the automatic switching mechanism comprises a connecting block, an adjusting shell, a lens, an adjusting motor, a bar code recognition sensor, a high beam bar code, a low beam bar code and a screw rod; the lens is fixed to the inner wall of the adjusting shell, and the adjusting motor is fixed to one side of the inner wall of the supporting frame. The device further comprises a switching sensing mechanism and a voice recognition adjusting assembly. The automatic switching mechanism has the advantages that automatic switching of high-beam and low-beam light can be carried out according to the inclination position of the head, and time and labor are saved during switching of the high-beam and low-beam light, so that the problem that automatic switching of the high-beam and low-beam light is difficult to carry out according to the inclination position of the head is solved; the brightness of the lamplight is difficult to automatically adjust according to voice needs, and time and labor are wasted when the high-beam lamplight and the low-beam lamplight are switched for use.

Description

Technical Field

[0001] The present invention relates to the technical field of head lamps, and more particularly to a headband type head lamp with high beam and low beam effects. Background Art

[0002] The existing headband headlights use electronic spotlight cup headlights, which are complex to process, have high manufacturing and assembly costs, are easily deformed during use, lack waterproof properties, and lack brightness, and cannot achieve the effect of high beam and low beam. Secondly, the headlights use convex lenses, which have high lens costs and complex production processes. The use of convex lenses increases the weight of the headlights, making the user experience poor, and the maximum lens that can be used is only φ65mm. The larger the lens, the heavier it is.

[0003] In the existing public documents, the patent with patent announcement number CN211976582U discloses a portable headlamp with a headband, which is aligned with the first socket through two second sockets and pivoted through a pin, and the headband connector is provided with two slots, and the two ends of the headband pass through the two slots and are detachably fixed to the side of the headband connector close to the lamp body, and the headband connector is also provided with a slot extending from the slot to the two side edges of the headband connector. This utility model solves the problem that the existing headlamps are easy to fall off. However, this patent has the following defects.

[0004] A headlamp needs to be worn on the head and then turned on to provide lighting needs. When in use, the headlamp needs to be adjusted to low beam for close-range lighting and to high beam for long-range lighting. The head will be tilted downward for close-range lighting and adjusted horizontally for high beam lighting. Therefore, it is difficult to automatically switch between high and low beams according to the tilt position of the head, and it is also difficult to automatically adjust the brightness of the light according to voice needs. Switching between high and low beams is more time-consuming and laborious. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a headband type headlamp with high beam and low beam effects, comprising a headband shell, a support frame and a sleeve block, wherein the support frame is fixed to one side of the headband shell, the sleeve block is slidably connected to the inner wall of the support frame, and one side of the sleeve block is provided with an automatic switching mechanism; the automatic switching mechanism comprises a connecting block fixedly arranged on one side of the sleeve block, and one side of the connecting block is fixedly connected to an adjustment shell; the automatic switching mechanism also comprises a lens, an adjustment motor, a barcode recognition sensor, a high beam barcode, a low beam barcode and a screw rod; the lens is fixed on the inner wall of the adjustment shell, and the adjustment motor is fixed on one side of the inner wall of the support frame, the barcode recognition sensor is fixed on the other side of the sleeve block, the high beam barcode is fixed on the outer wall of the support frame and is located above the barcode recognition sensor, and the low beam barcode is located on one side of the high beam barcode and is fixedly connected to the support frame; the screw is threadedly connected to the inner wall of the sleeve block, and the screw is fixedly connected to the output end of the adjustment motor; a switching sensor mechanism is provided on the lower surface of the support frame; a voice recognition adjustment component is provided at the bottom end of the headband shell.

[0006] Preferably, the sleeve block is slidably connected to the support frame, and the outer wall of the sleeve block and the inner wall of the support frame are both smooth surfaces, the upper surfaces of the high beam barcode and the low beam barcode are at the same horizontal line, and the cross-sectional shapes of the high beam barcode and the low beam barcode are both rectangular, two brackets are fixedly connected to the other side of the headband shell, and a buckle is provided on one side of the bracket, and the two brackets are fixedly connected to the buckle, and a battery is fixedly installed on one side of the inner wall of the headband shell, and a charging port is fixedly connected to the bottom end of the battery, and the charging port extends to the lower position of the headband shell. The inner wall of the adjustment shell is slidably connected to a plastic aluminum heat dissipation shell, and a primary LED light source is installed on one side of the plastic aluminum heat dissipation shell, and the primary LED light source and the headband shell are fixedly connected to the plastic aluminum heat dissipation shell; a plurality of secondary LED light sources are provided outside the primary LED light source, and the plurality of secondary LED light sources are fixedly connected to the plastic aluminum heat dissipation shell.

[0007] When this technology is used, the screw is started to rotate by adjusting the motor, the sleeve block drives the connecting block to move right, the adjusting shell drives the lens to move right, and the lens begins to move away from the primary LED light source. When the barcode recognition sensor senses the low beam barcode position, the barcode recognition sensor recognizes the low beam switch position and then turns off the adjustment motor.

[0008] Preferably, the switching sensing mechanism includes a first support block fixedly arranged on the lower surface of the support frame; a tilt angle sensor is fixedly connected to one side of the first support block; the switching sensing mechanism also includes a second support block, a pillar, a support block, a main infrared distance sensor and a proofreading infrared distance sensor; the second support block is fixed to one side of the tilt angle sensor, and the pillar is fixed to one end of the second support block, the support block is welded to one end of the pillar, the main infrared distance sensor and the proofreading infrared distance sensor are both fixed to one side of the support block, and the main infrared distance sensor is also located at one side of the proofreading infrared distance sensor, the vertical cross-sectional area of ​​the support block is larger than the vertical cross-sectional area of ​​the pillar, and the vertical cross-sectional shape of the pillar is circular.

[0009] When the present technology is in use, when the user's head is set to tilt at 45 degrees, the headband shell drives the support frame to tilt at 45 degrees, the tilt angle sensor supports the second support block, the second support block supports the pillar, and the support block supports the main infrared distance sensor and the proofreading infrared distance sensor, so that the main infrared distance sensor and the proofreading infrared distance sensor are both long-distance sensors, and the barcode recognition sensor remains stationary. At the same time, the barcode recognition sensor senses and recognizes the high-beam barcode, so that the shell supports the lens, and by turning on the first-level LED light source on the plastic aluminum heat dissipation shell, the first-level LED light source illuminates the lens, so that the first-level LED light source can achieve high-beam irradiation. When the headband shell tilts more than 45 degrees, the tilt angle sensor is used to sense the tilt angle, and the proofreading infrared distance sensor and the main infrared distance sensor can perform short-distance sensing of the ground.

[0010] Preferably, the voice recognition adjustment component includes a recognition controller fixedly arranged at the bottom end of the headband shell; a rotating motor is fixedly connected to one side of the recognition controller, and a concave sleeve block is rotatably connected to the outer wall of the output end of the rotating motor, the concave sleeve block is fixedly connected to the headband shell, and a sleeve strip is rotatably connected to the inner wall of the concave sleeve block; a voice recognition sensor is fixedly connected to one side of the sleeve strip and at a position away from the concave sleeve block.

[0011] When the technology is in use, the recognition controller starts the rotating motor to rotate forward 180 degrees and then reverse 180 degrees. The sleeve strip rotates back and forth inside the concave sleeve block, and the sleeve strip drives the voice recognition sensor to rotate back and forth. The operator's voice output of the secondary light can be recognized over a large area through the voice recognition sensor. After recognition, the primary LED light source is turned on by the recognition controller, and the recognition controller will also turn on multiple secondary LED light sources at the same time.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention utilizes an automatic switching mechanism, and starts the screw to rotate by adjusting the motor. The screw drives the sleeve block to move right under the action of the thread transmission force, and the connecting block drives the adjusting shell to move right. The adjusting shell drives the lens to move right, and the lens begins to move away from the primary LED light source. When the barcode recognition sensor senses the low beam barcode position, the barcode recognition sensor recognizes the low beam switching position, and the primary LED light source can realize low beam lighting through the lens. In this way, the high and low beam lights can be automatically switched according to the tilt position of the head, and the high and low beam light switching is more time-saving and labor-saving.

[0014] 2. The present invention switches the sensing mechanism. When the user's head is set to tilt at 45 degrees, the headband shell drives the support frame to tilt at 45 degrees. The first support block supports the tilt angle sensor, the tilt angle sensor supports the second support block, and the support block supports the main infrared distance sensor and the proofreading infrared distance sensor. Both the main infrared distance sensor and the proofreading infrared distance sensor can tilt at 45 degrees to sense the ground. The distance value sensed by the tilt angle sensor is also tilted at 45 degrees. The barcode recognition sensor senses and recognizes the high-beam barcode. By turning on the primary LED light source on the plastic-aluminum heat dissipation shell, the primary LED light source illuminates the lens to realize the switching operation of the low-beam headlight, thereby realizing automatic sensing switching.

[0015] 3. The present invention adopts a voice recognition adjustment component. The rotating motor is started to rotate forward 180 degrees and then reversed 180 degrees. The output end of the rotating motor drives the sleeve strip to rotate reciprocatingly. At the same time, the sleeve strip rotates reciprocatingly inside the concave sleeve block. The operator's voice output can be recognized over a large area through the voice recognition sensor, turning on the primary LED light source, and the recognition controller will also turn on multiple secondary LED light sources at the same time. In this way, the brightness of the light can be automatically adjusted according to the voice needs, and the switching between high and low lights is more time-saving and labor-saving.

[0016] According to the mutual influence of the above multiple functions, the barcode recognition sensor first recognizes the low beam switch position, and the first-level LED light source can realize low beam lighting through the lens, and then the first-level LED light source on the plastic aluminum heat dissipation shell is turned on, and the first-level LED light source illuminates the lens, and finally the first-level LED light source is turned on, and the recognition controller will also turn on multiple second-level LED light sources at the same time. In summary, the high and low lights can be automatically switched according to the tilt position of the head, and the brightness of the light can be automatically adjusted according to the voice needs, and the high and low light switching is more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of the headband type headlamp with high beam and low beam effects of the present invention.

[0018] Figure 2It is a schematic diagram of the partial structure of the connection between the regulating shell and the connecting block of the present invention.

[0019] Figure 3 It is a schematic diagram of the vertical cross-section structure of the headband type headlamp with high beam and low beam effects of the present invention.

[0020] Figure 4 The diagram is a schematic diagram of the headband-type headlamp with high-beam and low-beam effects when viewed from above.

[0021] Figure 5 It is a bottom view structural schematic diagram of the switching sensor mechanism of the present invention.

[0022] Figure 6 A schematic diagram of the annotated structure of the speech recognition adjustment component of the present invention.

[0023] The accompanying drawings are marked as follows: 1. headband shell; 2. support frame; 3. sleeve block; 4. connecting block; 5. adjustment shell; 6. lens; 7. adjustment motor; 8. barcode recognition sensor; 9. high beam barcode; 10. low beam barcode; 11. screw; 12. bracket; 13. buckle; 14. battery; 15. charging port; 16. plastic aluminum heat dissipation shell; 17. primary LED light source; 18. secondary LED light source; 19. first support block; 20. tilt angle sensor; 21. second support block; 22. pillar; 23. support block; 24. main infrared distance sensor; 25. calibration infrared distance sensor; 26. recognition controller; 27. rotating motor; 28. concave sleeve block; 29. ​​sleeve strip; 30. voice recognition sensor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] As attached Figure 1-6 A headband headlamp with high and low beam effects is shown. The headband headlamp with high and low beam effects is provided with an automatic switching mechanism, a switching sensing mechanism, and a voice recognition adjustment component. The settings of each mechanism and component can automatically switch between high and low beam lights according to the tilt position of the head, and can automatically adjust the brightness of the light according to voice needs. The switching between high and low beam lights is more time-saving and labor-saving. The specific structural settings of each mechanism and component are as follows.

[0026] In this embodiment, as shown in the attached Figure 1-3As shown, the automatic switching mechanism includes a connecting block 4 fixedly arranged on one side of the sleeve block 3, and one side of the connecting block 4 is fixedly connected with an adjustment shell 5; the automatic switching mechanism also includes a lens 6, an adjustment motor 7, a barcode recognition sensor 8, a high-beam barcode 9, a low-beam barcode 10 and a screw 11; the lens 6 is fixed to the inner wall of the adjustment shell 5, and the adjustment motor 7 is fixed to one side of the inner wall of the support frame 2, the barcode recognition sensor 8 is fixed at the other side of the sleeve block 3, the high-beam barcode 9 is fixed to the outer wall of the support frame 2 and is located above the barcode recognition sensor 8, and the low-beam barcode 10 is located on one side of the high-beam barcode 9 and is fixedly connected to the support frame 2; the screw 11 is threadedly connected to the inner wall of the sleeve block 3, and the screw 11 is fixedly connected to the output end of the adjustment motor 7; the lower surface of the support frame 2 is provided with a switching sensor mechanism; the bottom end of the headband shell 1 is provided with a voice recognition adjustment component.

[0027] In this embodiment, as shown in the attached Figure 1-3 As shown, two brackets 12 are fixedly connected to the other side of the headband shell 1, and a buckle 13 is provided on one side of the bracket 12. The two brackets 12 are fixedly connected to the buckle 13 so that the buckle 13 can be clamped on the headband of the user's head. The two brackets 12 are supported by the buckle 13, and the two brackets 12 provide support for the headband shell 1, making the headband shell 1 more stable when in use.

[0028] A battery 14 is fixedly installed on one side of the inner wall of the headband shell 1, and a charging port 15 is fixedly connected to the bottom end of the battery 14. The charging port 15 extends to the lower position of the headband shell 1 so that the charging port 15 can charge the battery 14, and the battery 14 is used for energy storage lighting. In this way, the battery 14 can be charged and powered.

[0029] The inner wall of the adjustment shell 5 is slidably connected with a plastic-aluminum heat dissipation shell 16, and a primary LED light source 17 is installed on one side of the plastic-aluminum heat dissipation shell 16. The primary LED light source 17 and the headband shell 1 are fixedly connected to the plastic-aluminum heat dissipation shell 16; a plurality of secondary LED light sources 18 are arranged outside the primary LED light source 17, and the plurality of secondary LED light sources 18 are fixedly connected to the plastic-aluminum heat dissipation shell 16, so that by turning on the primary LED light source 17 on the plastic-aluminum heat dissipation shell 16, the primary LED light source 17 performs lighting operation on the lens 6, and the plastic-aluminum heat dissipation shell 16 provides heat dissipation.

[0030] In this embodiment, as shown in the attached Figure 4-5As shown, the switching sensing mechanism includes a first support block 19 fixedly arranged on the lower surface of the support frame 2; a tilt angle sensor 20 is fixedly connected to one side of the first support block 19; the switching sensing mechanism also includes a second support block 21, a pillar 22, a support block 23, a main infrared distance sensor 24 and a calibration infrared distance sensor 25; the second support block 21 is fixed to one side of the tilt angle sensor 20, and the pillar 22 is fixed to one end of the second support block 21, the support block 23 is welded to one end of the pillar 22, the main infrared distance sensor 24 and the calibration infrared distance sensor 25 are both fixed to one side of the support block 23, and the main infrared distance sensor 24 is also located at one side of the calibration infrared distance sensor 25. The vertical cross-sectional area of ​​the support block 23 is larger than the vertical cross-sectional area of ​​the pillar 22, and the vertical cross-sectional shape of the pillar 22 is circular.

[0031] In this embodiment, as shown in the attached Figure 4-6 As shown, the voice recognition adjustment component includes a recognition controller 26 fixedly arranged at the bottom end of the headband shell 1; a rotating motor 27 is fixedly connected to one side of the recognition controller 26, and a concave sleeve block 28 is rotatably connected to the outer wall of the output end of the rotating motor 27, the concave sleeve block 28 is fixedly connected to the headband shell 1, and a sleeve strip 29 is rotatably connected to the inner wall of the concave sleeve block 28; a voice recognition sensor 30 is fixedly connected to one side of the sleeve strip 29 and at a position away from the concave sleeve block 28.

[0032] Working principle of the present invention:

[0033] Step 1, when switching sensing, first clamp the buckle 13 on the headband of the user's head, support the two brackets 12 through the buckle 13, and the two brackets 12 provide support for the headband shell 1. When the user's head is set to be tilted at forty-five degrees, the headband shell 1 drives the support frame 2 to tilt at forty-five degrees, so that the support frame 2 supports the first support block 19, the first support block 19 supports the tilt angle sensor 20, the tilt angle sensor 20 supports the second support block 21, the second support block 21 supports the pillar 22, the pillar 22 provides support force for the support block 23, and the support block 23 supports the main infrared distance sensor 24 and the proofreading infrared distance sensor 25, so that the main infrared distance sensor 24 and the proofreading infrared distance sensor 25 can both tilt at forty-five degrees to sense the ground, so that the main infrared distance sensor 24 and the proofreading infrared distance sensor 25 are long-distance sensors, and the distance value sensed by the tilt angle sensor 20 is also tilted at forty-five degrees, so that the barcode recognition sensor 8 is kept stationary.

[0034] At the same time, the barcode recognition sensor 8 senses and recognizes the high beam barcode 9, so that the adjustment shell 5 supports the lens 6, and by turning on the primary LED light source 17 on the plastic aluminum heat dissipation shell 16, the primary LED light source 17 illuminates the lens 6, so that the primary LED light source 17 can achieve high beam illumination. When the headband housing 1 is tilted more than 45 degrees, the tilt angle sensor 20 is used to sense the tilt angle, and the calibration infrared distance sensor 25 and the main infrared distance sensor 24 can perform short-distance sensing on the ground. In this way, the switching operation of the low beam is realized.

[0035] Step 2: When switching automatically, the screw 11 is started to rotate by adjusting the motor 7, and the screw 11 drives the sleeve block 3 to move right under the action of the thread transmission force, the sleeve block 3 drives the connecting block 4 to move right, the connecting block 4 drives the adjusting shell 5 to move right, the adjusting shell 5 drives the lens 6 to move right, the adjusting shell 5 moves right along the outer wall of the plastic aluminum heat dissipation shell 16, and the lens 6 starts to move away from the primary LED light source 17. When the barcode recognition sensor 8 senses the position of the low beam barcode 10, the barcode recognition sensor 8 recognizes the low beam switch position, and then turns off the adjusting motor 7, so that the primary LED light source 17 can achieve low beam lighting through the lens 6.

[0036] Step 3: During voice recognition adjustment, the rotary motor 27 is started by the recognition controller 26 to rotate forward 180 degrees and then reverse 180 degrees, so that the output end of the rotary motor 27 drives the sleeve 29 to rotate back and forth, and the sleeve 29 rotates back and forth inside the concave sleeve block 28, and the sleeve 29 drives the voice recognition sensor 30 to rotate back and forth. The operator's voice output of the secondary light can be recognized by the voice recognition sensor 30 for a large area. After recognition, the recognition controller 26 turns on the primary LED light source 17, and the recognition controller 26 also turns on multiple secondary LED light sources 18 at the same time, realizing the light increase operation and voice control. At the same time, the charging port 15 can charge the battery 14, and the battery 14 realizes energy storage lighting.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A headband headlamp with high beam and low beam effects, comprising a headband housing (1), a support frame (2) and a sleeve block (3), wherein the support frame (2) is fixed to one side of the headband housing (1), and the sleeve block (3) is slidably connected to the inner wall of the support frame (2), characterized in that: An automatic switching mechanism is provided on one side of the sleeve block (3); The automatic switching mechanism comprises a connecting block (4) fixedly arranged on one side of the sleeve block (3), and an adjusting shell (5) is fixedly connected to one side of the connecting block (4); The automatic switching mechanism also includes a lens (6), an adjustment motor (7), a barcode recognition sensor (8), a high-beam barcode (9), a low-beam barcode (10), and a screw (11); The lens (6) is fixed on the inner wall of the adjustment shell (5), and the adjustment motor (7) is fixed on one side of the inner wall of the support frame (2), the barcode recognition sensor (8) is fixed on the other side of the sleeve block (3), the high-beam barcode (9) is fixed on the outer wall of the support frame (2) and is located above the barcode recognition sensor (8), and the low-beam barcode (10) is located on one side of the high-beam barcode (9) and is fixedly connected to the support frame (2); The screw rod (11) is threadedly connected to the inner wall of the sleeve block (3), and the screw rod (11) is fixedly connected to the output end of the regulating motor (7); A switching sensor mechanism is provided on the lower surface of the support frame (2); A voice recognition adjustment component is provided at the bottom end of the headband housing (1).

2. The headband headlamp with high beam and low beam effects according to claim 1, characterized in that: The sleeve block (3) is slidably connected to the support frame (2), and the outer wall of the sleeve block (3) and the inner wall of the support frame (2) are both smooth surfaces.

3. The headband headlamp with high and low beam effects according to claim 1, characterized in that: The upper surfaces of the high-beam barcode (9) and the low-beam barcode (10) are on the same horizontal line, and the cross-sectional shapes of the high-beam barcode (9) and the low-beam barcode (10) are both rectangular.

4. The headband headlamp with high beam and low beam effects according to claim 1, characterized in that: Two brackets (12) are fixedly connected to the other side of the headband shell (1), and a buckle (13) is provided on one side of the bracket (12), and the two brackets (12) are fixedly connected to the buckle (13).

5. The headband headlamp with high beam and low beam effects according to claim 1, characterized in that: A storage battery (14) is fixedly mounted on one side of the inner wall of the headband housing (1), a charging port (15) is fixedly connected to the bottom end of the storage battery (14), and the charging port (15) extends to a position below the headband housing (1).

6. The headband headlamp with high beam and low beam effects according to claim 1, characterized in that: The inner wall of the adjustment shell (5) is slidably connected to a plastic aluminum heat dissipation shell (16), a primary LED light source (17) is installed on one side of the plastic aluminum heat dissipation shell (16), and the primary LED light source (17) and the headband shell (1) are fixedly connected to the plastic aluminum heat dissipation shell (16); A plurality of secondary LED light sources (18) are arranged outside the primary LED light source (17), and the plurality of secondary LED light sources (18) are fixedly connected to the plastic-aluminum heat dissipation shell (16).

7. The headband headlamp with high beam and low beam effects according to claim 1, characterized in that: The switching sensor mechanism comprises a first support block (19) fixedly arranged on the lower surface of the support frame (2); A tilt angle sensor (20) is fixedly connected to one side of the first support block (19); The switching sensing mechanism further comprises a second support block (21), a support column (22), a support block (23), a main infrared distance sensor (24) and a calibration infrared distance sensor (25); The second support block (21) is fixed on one side of the tilt angle sensor (20), and the pillar (22) is fixed on one end of the second support block (21), the support block (23) is welded on one end of the pillar (22), the main infrared distance sensor (24) and the calibration infrared distance sensor (25) are both fixed on one side of the support block (23), and the main infrared distance sensor (24) is also located on one side of the calibration infrared distance sensor (25).

8. The headband type headlamp with high beam and low beam effects according to claim 7, characterized in that: The vertical cross-sectional area of ​​the support block (23) is greater than the vertical cross-sectional area of ​​the support column (22), and the vertical cross-sectional shape of the support column (22) is circular.

9. The headband type headlamp with high beam and low beam effects according to claim 1, characterized in that: The speech recognition adjustment component comprises a recognition controller (26) fixedly arranged at the bottom end of the headband housing (1); A rotating motor (27) is fixedly connected to one side of the identification controller (26), and a concave sleeve (28) is rotatably connected to the outer wall of the output end of the rotating motor (27), the concave sleeve (28) is fixedly connected to the headband housing (1), and a sleeve strip (29) is rotatably connected to the inner wall of the concave sleeve (28); A voice recognition sensor (30) is fixedly connected to one side of the sleeve strip (29) and at a position away from the concave sleeve block (28).

Images