Nose support module with adjustable nose pads
By introducing a drive mechanism and a transmission mechanism into the nose pad module, the problem of the inability to adjust the position and angle of the nose pad is solved, enabling precise adjustment of the nose pad and improving wearing comfort.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- GOERTEK INC
- Filing Date
- 2025-03-25
- Publication Date
- 2026-05-21
AI Technical Summary
The nose pad position and angle of traditional smart glasses are not adjustable, requiring wearers to manually adjust them, which affects wearing comfort.
The nose pad module is equipped with a drive mechanism, a transmission mechanism, and a guide component. The position and angle of the nose pad can be adjusted through the drive mechanism and the transmission mechanism and guide component in the connection part of the nose pad.
By adjusting the position and angle of the nose pads, the wearer's comfort is improved, and the precise adjustment of the nose pad spacing and angle is ensured.
Smart Images
Figure CN2025084620_21052026_PF_FP_ABST
Abstract
Description
Adjustable nose pad module
[0001] This application claims priority to Chinese Patent Application No. 202411638800.6, filed on November 15, 2024, entitled "Adjustable Nose Pad Module", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This invention relates to the field of smart wearable device technology, and more specifically, to an adjustable nose pad module. Background Technology
[0003] With economic and technological development, the application of smart wearable devices is becoming increasingly widespread. For example, smart glasses allow people to not only improve their vision but also perceive their environment through electronic devices, achieving a multi-functional effect.
[0004] Smart glasses typically consist of a frame, on which lenses, temples, and a nose pad module are mounted. The lenses are used to improve the wearer's vision, the temples are used to support the sides of the frame by resting on the wearer's ears, and the nose pad module has a nose pad that contacts the sides of the wearer's nose bridge, thereby enabling the nose pad module to support the middle of the frame.
[0005] Traditional smart glasses have a fixed nose pad position in the nose pad module. The position and angle of the two nose pads are not adjustable (especially the distance between the two nose pads). However, different wearers have different widths and heights of their nose bridges. Therefore, for smart glasses with non-adjustable nose pad positions, wearers need to manually adjust the entire smart glasses, which is not very effective and affects the wearer's comfort.
[0006] Based on the aforementioned technical issues, there is an urgent need for a nose pad module that can adjust the position and angle of the nose pad. Summary of the Invention
[0007] In view of the above problems, the purpose of this invention is to provide an adjustable nose pad module to solve the problem that the position and angle of the two nose pads in existing smart glasses are not adjustable.
[0008] The adjustable nose pad module provided by the present invention includes a main body and a first connecting portion and a second connecting portion respectively connected to both sides of the main body; wherein, a first nose pad is movably connected to the first connecting portion, and a second nose pad is movably connected to the second connecting portion; and...
[0009] A drive mechanism is provided in the main body, a first guide member near the first nose pad and a first transmission mechanism connected to the drive mechanism are provided in the first connecting part, and a second guide member near the second nose pad and a second transmission mechanism connected to the drive mechanism are provided in the second connecting part.
[0010] The first nose pad is connected to the drive mechanism via the first transmission mechanism for position adjustment and to the first guide for angle adjustment; the second nose pad is connected to the drive mechanism via the second transmission mechanism for position adjustment and to the second guide for angle adjustment.
[0011] Furthermore, in a preferred embodiment, the driving mechanism includes a lead screw, a first slider, and a second slider. The lead screw is rotatably connected within the main body and has an external thread. Both the first and second sliders have internal threaded holes adapted to the external thread. The first and second sliders are respectively screwed to the lead screw through corresponding internal threaded holes engaging with the external thread.
[0012] The first slider is connected to the first nose pad via the first transmission mechanism, and the second slider is connected to the second nose pad via the second transmission mechanism.
[0013] Furthermore, a preferred embodiment is that a dividing block is provided in the middle of the lead screw, and the external threads on the lead screw located on both sides of the dividing block are in opposite directions.
[0014] Furthermore, in a preferred embodiment, the drive mechanism further includes a drive motor disposed within the main body, the output shaft of which is connected to one end of the lead screw; and...
[0015] Inside the main body, there is a guide rail parallel to the lead screw, and both the first slider and the second slider are slidably connected to the guide rail.
[0016] Furthermore, in a preferred embodiment, the guide rail includes a guide rod parallel to the lead screw, a first guide sliding hole is provided on the first slider, and a second guide sliding hole is provided on the second slider, with the guide rod passing through the first guide sliding hole and the second guide sliding hole in sequence.
[0017] Furthermore, in a preferred embodiment, the first transmission mechanism includes a first connecting rod and a second connecting rod; wherein one end of the first connecting rod is fixedly connected to the first slider, the other end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the end of the second connecting rod away from the first connecting rod is connected to the first nose pad; and...
[0018] The second transmission mechanism includes a third link and a fourth link; wherein, one end of the third link is fixedly connected to the second slider, the other end of the third link is rotatably connected to one end of the fourth link, and the end of the fourth link away from the third link is connected to the second nose pad.
[0019] Furthermore, a preferred embodiment is that a first sliding guide groove is provided in the first connecting portion, and a second sliding guide groove is provided in the second connecting portion; wherein,
[0020] The first transmission mechanism is disposed in the first sliding guide groove, and the second transmission mechanism is disposed in the second sliding guide groove.
[0021] In addition, a preferred embodiment is that the first sliding guide groove includes a first inclined groove and a first extension groove that are connected to each other, the first connecting rod is disposed in the first inclined groove, and the second connecting rod is disposed in the first extension groove.
[0022] The second sliding guide groove includes a second inclined groove and a second extended groove that are connected to each other. The third connecting rod is disposed in the second inclined groove, and the fourth connecting rod is disposed in the second extended groove.
[0023] In addition, a preferred embodiment is that a first connecting block is connected to the first nose pad, and a first elongated hole communicating with the first extension groove is opened on the first connecting part. The first connecting block extends into the first extension groove through the first elongated hole and is connected to the second connecting rod.
[0024] A second connecting block is connected to the second nose pad. A second elongated hole communicating with the second extension groove is provided on the second connecting part. The second connecting block extends into the second extension groove through the second elongated hole and is connected to the fourth connecting rod.
[0025] Furthermore, in a preferred embodiment, the first guide member includes a first upper limit stop block disposed at the upper end of the first elongated hole and a first lower limit stop block disposed at the lower end of the first elongated hole; the second guide member includes a second upper limit stop block disposed at the upper end of the second elongated hole and a second lower limit stop block disposed at the lower end of the second elongated hole.
[0026] Compared with the prior art, the adjustable nose pad module according to the present invention has the following advantages:
[0027] The nose pad adjustable nose pad module provided by the present invention, by setting a driving mechanism in the main body and setting a transmission mechanism (including a first transmission mechanism and a second transmission mechanism) and a guide (including a first guide and a second guide) in the connecting part (including a first connecting part and a second connecting part), can realize the position adjustment (especially the adjustment of the distance between the two nose pads) and angle adjustment of the nose pad on the nose pad module, thereby improving the comfort of the wearer. Attached Figure Description
[0028] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of the invention. In the drawings:
[0029] Figure 1 is a perspective view of the adjustable nose pad module provided in an embodiment of the present invention;
[0030] Figure 2 is a schematic diagram of the internal transmission principle of the adjustable nose pad module provided in an embodiment of the present invention;
[0031] Figure 3 is an internal front sectional view of the main body provided in an embodiment of the present invention;
[0032] Figure 4 is a partial enlarged view of the lead screw provided in an embodiment of the present invention;
[0033] Figure 5 is an internal cross-sectional view of the first connecting portion provided in an embodiment of the present invention;
[0034] Reference numerals: Main body 1, First connecting part 2, First inclined groove 21, First extension groove 22, First elongated hole 23, First lower limit stop 24, First upper limit stop 25, Second connecting part 3, Second elongated hole 22, First nose pad 4, First connecting block 41, Second nose pad 5, Second connecting block 51, Lead screw 61, First slider 62, Second slider 63, Drive motor 64, Second support plate 65, First support plate 66, Separating block 67, Mounting groove 68, Guide rod 69, First connecting rod 71, Second connecting rod 72, Third connecting rod 81, Fourth connecting rod 82, Connecting end 9.
[0035] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation
[0036] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.
[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0038] Figure 1 shows the three-dimensional structure of the nose pad adjustable nose bridge module provided in an embodiment of the present invention. Figure 2 shows the internal transmission principle of the nose pad adjustable nose bridge module provided in an embodiment of the present invention. Figure 3 shows the internal main view cross-sectional structure of the main body provided in an embodiment of the present invention. Figure 4 shows a partially enlarged structure of the lead screw provided in an embodiment of the present invention. Figure 5 shows the internal cross-sectional structure of the first connecting part provided in an embodiment of the present invention.
[0039] As shown in Figures 1 to 5, the adjustable nose pad module provided in the embodiment of the present invention includes a main body 1 for internally carrying electronic components and a first connecting part 2 and a second connecting part 3 respectively connected to both sides of the main body 1; wherein, a first nose pad 4 is connected to the first connecting part 2 and a second nose pad 5 is connected to the second connecting part 3, and the first nose pad 4 and the second nose pad 5 are respectively used to fit and support the sides of the wearer's nose bridge.
[0040] To achieve position adjustment of the first nose pad 4 and the second nose pad 5 (especially the distance between the two nose pads), a drive mechanism is provided in the main body 1, a first transmission mechanism connected to the drive mechanism is provided in the first connecting part 2, and a second transmission mechanism connected to the drive mechanism is provided in the second connecting part 3; the first nose pad 4 is connected to the drive mechanism through the first transmission mechanism, and its position is adjusted by the drive mechanism in cooperation with the first transmission mechanism; the second nose pad 5 is connected to the drive mechanism through the second transmission mechanism, and its position is adjusted by the drive mechanism in cooperation with the second transmission mechanism.
[0041] To achieve angle adjustment of the first nose pad and the second nose pad, a first guide member is provided in the first connecting part near the first nose pad, and a second guide member is provided in the second connecting part near the second nose pad. The first guide member, in conjunction with the first transmission mechanism and the drive mechanism, can also achieve angle adjustment of the first nose pad, and the second guide member, in conjunction with the second transmission mechanism and the drive mechanism, can also achieve angle adjustment of the second nose pad.
[0042] In a specific embodiment of the present invention, as shown in Figures 2 to 4, in order to enable the driving mechanism to cooperate with the first transmission mechanism and the second transmission mechanism to adjust the position of the first nose pad 4 and the second nose pad 5 respectively, the driving mechanism may include a lead screw 61, a first slider 62, and a second slider 63. The lead screw 61 is rotatably connected inside the main body 1 and has an external thread. Both the first slider 62 and the second slider 63 have internal threaded holes adapted to the external threads. The inner walls of the internal threaded holes on the first slider 62 and the second slider 63 are... Both are provided with internal threads that are compatible with external threads. The first slider 62 and the second slider 63 are respectively sleeved on the lead screw 61 through their respective internal thread holes, and are screwed to the lead screw 61 through their respective internal threads engaging with the external threads on the lead screw 61. In order to realize the connection between the drive mechanism and the two nose pads, the end of the first slider 62 away from the lead screw 61 is connected to the first nose pad 4 through the first transmission mechanism, and the end of the second slider 63 away from the lead screw 61 is connected to the second nose pad 5 through the second transmission mechanism, thereby realizing the drive mechanism to drive the first nose pad 4 and the second nose pad 5.
[0043] It should be noted that a limiting boss 67 needs to be provided in the middle of the lead screw 61, and the external threads on the parts on both sides of the limiting boss 67 on the lead screw 61 should be in opposite directions. This arrangement allows the two sliders (including the first slider 62 and the second slider 63) to move towards or in opposite directions during the rotation of the lead screw 61. For example, when the lead screw 61 rotates in the forward direction, the first slider 62 and the second slider 63 move towards each other. At this time, the first nose pad 4 moves under the drive of the first transmission mechanism, and the second nose pad 5 moves under the drive of the second transmission mechanism. The movement of the two nose pads on the nose pad module allows them to retract inwards. When the lead screw 61 rotates in the opposite direction, the first slider 62 and the second slider 63 move in opposite directions. At this time, the first nose pad 4 moves under the drive of the first transmission mechanism, and the second nose pad 5 moves under the drive of the second transmission mechanism, thereby expanding the two nose pads on the nose pad module outwards. Of course, the limiting boss 67 set in the middle of the lead screw 61 can also limit the movement of the first slider 62 and the second slider 63, preventing the two sliders from moving too far (especially when they are close to each other).
[0044] It should be noted that, in the actual design process, the direction of the external thread on the lead screw 61 can be set as needed. For example, by changing the direction of the external thread on the lead screw 61, when the lead screw 61 rotates in the forward direction, the first slider 62 and the second slider 63 move in opposite directions; when the lead screw 61 rotates in the reverse direction, the first slider 62 and the second slider 63 move towards each other.
[0045] For the lead screw 61, in order to achieve its rotatable connection within the main body 1, a mounting groove 68 for mounting various components can be opened in the main body 1. A first support plate 66 and a second support plate 65 are provided in the mounting groove 68. One end of the lead screw 61 is rotatably connected to the first support plate 66, and the other end of the lead screw 61 is rotatably connected to the second support plate 65.
[0046] To provide driving force for the rotation of the lead screw 61, the drive mechanism may further include a drive motor 64 disposed within the main body 1. The output shaft of the drive motor 64 is fixedly connected to one end of the lead screw 61, thereby enabling the drive motor 64 to drive the lead screw 61 to rotate forward or in reverse. It should be noted that, for the drive motor 64, to facilitate precise control of its rotation, a stepper motor can be selected. By selecting a stepper motor, the angular displacement of the lead screw 61 can be precisely controlled, thereby precisely controlling the movement distance of the two sliders.
[0047] In addition, to ensure that the two sliders can slide stably and prevent them from rotating with the lead screw 61, a guide rail parallel to the lead screw 61 can be provided in the main body 1. The first slider 62 and the second slider 63 are slidably connected to the guide rail, thereby guiding the first slider 62 and the second slider 63 and ensuring that the two sliders can slide stably.
[0048] Specifically, regarding the fabrication of the guide rail, it may include a guide rod 69 parallel to the lead screw 61. To achieve a sliding connection between the first slider 62 and the second slider 63 and the guide rod 69, a first guide hole can be formed on the first slider 62, and a second guide hole can be formed on the second slider 63. The guide rod 69 passes through the first guide hole and the second guide hole in sequence, thereby achieving a sliding connection between the first slider 62 and the second slider 63 and the guide rod 69. Furthermore, to further enhance the guiding effect of the guide rail on the sliders, the guide rail may also include a guide groove (not shown in the figure) located below the lead screw 61. The guide groove is parallel to the lead screw 61, and the bottoms of the first slider 62 and the second slider 63 are both limited to the guide groove and can slide along it.
[0049] For the transmission mechanism (including the first transmission mechanism and the second transmission mechanism), in order to enable the two sliders to transmit the driving force received by the self-driving mechanism to the two nose pads, the first transmission mechanism may include a first connecting rod 71 and a second connecting rod 72; wherein, one end of the first connecting rod 71 is fixedly connected to the first slider 62, the other end of the first connecting rod 71 is rotatably connected to one end of the second connecting rod 72, and the end of the second connecting rod 72 away from the first connecting rod 71 is connected to the first nose pad 4; with this arrangement, when the first slider 62 moves laterally, the first connecting rod 71 moves laterally in the same direction. At this time, since the first connecting rod 71 and the second connecting rod 72 are rotatably connected, the second connecting rod 72 will perform a stretching action, thereby driving the first nose pad 4 to perform a telescopic action; and...
[0050] The second transmission mechanism includes a third link 81 and a fourth link 82. One end of the third link 81 is fixedly connected to the second slider 63, and the other end of the third link 81 is rotatably connected to one end of the fourth link 82. The end of the fourth link 82 away from the third link 81 is connected to the second nose pad 5. With this configuration, when the second slider 63 moves laterally, the third link 81 moves laterally in the same direction. Since the third link 81 and the fourth link 82 are rotatably connected, the fourth link 82 will stretch, thereby causing the second nose pad 5 to extend or retract. For the two nose pads, this results in either inward contraction or outward expansion.
[0051] It should be noted that, to ensure that the second link 72 and the fourth link 82 can extend and retract in the required direction, a first sliding guide groove can be provided in the first connecting part 2, and a second sliding guide groove can be provided in the second connecting part 3. The first transmission mechanism is located in the first sliding guide groove, and the second transmission mechanism is located in the second sliding guide groove. The first sliding guide groove may include a first inclined groove 21 and a first extension groove 22 that are connected. The first link 71 is located in the first inclined groove 21, and the second link 72 is located in the first extension groove 22. The second sliding guide groove may include a second inclined groove and a second extension groove that are connected. The third link 81 is located in the second inclined groove, and the fourth link 82 is located in the second extension groove. This design guides the movement of the second link 72 and the fourth link 82, allowing them to extend and retract as needed, thereby causing the two nose pads to retract inward or expand outward.
[0052] Furthermore, in actual operation, taking the adjustment of the left nose pad (i.e., the first nose pad 4) in Figure 2 as an example, the drive motor 64 drives the left slider (i.e., the first slider 62) to move to the left, and the first connecting rod 71 moves to the left in the first sliding guide groove. The first connecting rod 71 drives the upper end of the second connecting rod 72 to move to the left until the second connecting rod 72 touches the corner of the inner wall of the first sliding guide groove. Since the first connecting rod 71 and the second connecting rod 72 are rotatably connected by a pin, the second connecting rod 72 will rotate around its connecting shaft. Subsequently, due to the guiding and limiting effect of the first extension groove 22, the second connecting rod 72 moves downward in the first extension groove 22, thereby driving the left nose pad to move downward on the nose pad module.
[0053] Both the first nose pad 4 and the second nose pad 5 are located outside the connecting portion (including the first connecting portion 2 and the second connecting portion 3), while the second connecting rod 72 and the fourth connecting rod 82 are located inside the connecting portion. To achieve the connection between the nose pads and the corresponding connecting rods, a first connecting block 41 can be connected to the first nose pad 4. A first elongated hole 23 communicating with the first extension groove 22 is opened on the first connecting portion 2. The first connecting block 41 extends into the first extension groove 22 through the first elongated hole 23 and is connected to the second connecting rod 72. A second connecting block 51 is connected to the second nose pad 5. A second elongated hole communicating with the second extension groove is opened on the second connecting portion 3. The second connecting block 51 extends into the second extension groove through the second elongated hole and is connected to the fourth connecting rod 82. Thus, the connection between the two nose pads and the corresponding connecting rods is achieved.
[0054] In a specific embodiment of the present invention, in order to achieve angle adjustment of the first guide member on the first nose pad and angle adjustment of the second guide member on the second nose pad, the first guide member may include a first upper limit stop 25 disposed at the upper end of the first elongated hole and a first lower limit stop 24 disposed at the lower end of the first elongated hole; the second guide member includes a second upper limit stop disposed at the upper end of the second elongated hole and a second lower limit stop disposed at the lower end of the second elongated hole. In actual operation, taking the adjustment of the left nose pad (i.e., the first nose pad 4) in Figure 2 as an example, the drive motor 64 drives the left slider (i.e., the first slider 62) to move to the left. The first connecting rod 71 then moves to the left in the first sliding guide groove. The first connecting rod 71 drives the upper end of the second connecting rod 72 to move to the left until the second connecting rod 72 touches the corner of the inner wall of the first sliding guide groove. Since the first connecting rod 71 and the second connecting rod 72 are rotatably connected by a pin, the second connecting rod 72 will rotate around its connecting shaft. Subsequently, due to the guiding and limiting effect of the first extension groove 22, the second connecting rod 72 moves downward in the first extension groove 22, thereby driving the left nose pad to move downward on the nose pad module. When the left nose pad touches the first lower limit stop, it cannot continue to move. At this time, it can only rotate counterclockwise, thereby realizing the counterclockwise rotation adjustment of the left nose pad. Conversely, when the left nose pad is pulled upward and touches the first upper limit stop, it can only rotate clockwise, thereby realizing the clockwise rotation adjustment of the left nose pad.
[0055] Of course, in order to adjust the angle of the first nose pad and the second nose pad, the guides (including the first guide and the second guide) can also be set in other ways. For example, the adjustment can be made by using a stepper motor to connect the nose pad (including the first nose pad and the second nose pad) through a rotating shaft, or by connecting the nose pad through a gear rotation mechanism. Of course, the above two driving methods are common connection methods in the mechanical field. This invention mainly focuses on the application of their functions. Therefore, the specific working principles of the two methods mentioned above will not be elaborated here.
[0056] In addition, in order to connect the main body 1 to the frame, a connecting end 9 is provided on the side of the main body 1 away from the drive mechanism, and the main body 1 is connected to the frame through the connecting end 9.
[0057] As can be seen from the above specific embodiments, the adjustable nose pad module provided by the present invention has at least the following advantages:
[0058] 1. By setting a drive mechanism in the main body of the nose pad module, and connecting the first nose pad to the drive mechanism through the first transmission mechanism, and connecting the second nose pad to the drive mechanism through the second transmission mechanism, the distance between the first nose pad and the second nose pad can be adjusted in time by the drive mechanism in conjunction with the transmission mechanism, thereby improving the wearer's comfort.
[0059] 2. By setting up components such as drive motor, lead screw, slider, and guide rail, it is possible to realize the inward contraction or outward expansion between the first nose pad and the second nose pad, and to ensure that the displacement of the first nose pad and the second nose pad is always equal during the movement, so as to realize the synchronous adjustment of the two nose pads.
[0060] 3. By setting a first guide member in the first connecting part and a second guide member in the second connecting part, the upper and lower limit blocks (including the first upper and lower limit blocks and the second upper and lower limit blocks) in the guide member (including the first guide member and the second guide member) can cooperate with the transmission mechanism (including the first transmission mechanism and the second transmission mechanism), thereby completing the angle adjustment of the first nose pad and the second nose pad and further improving the comfort of the wearer.
[0061] The adjustable nose pad module according to the present invention has been described above by way of example with reference to Figures 1 to 5. However, those skilled in the art will understand that various modifications can be made to the adjustable nose pad module proposed in the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.
Claims
1. An adjustable nose pad module, characterized in that, It includes a main body and a first connecting portion and a second connecting portion respectively connected to both sides of the main body; wherein a first nose pad is movably connected to the first connecting portion, and a second nose pad is movably connected to the second connecting portion; and... A drive mechanism is provided in the main body, a first guide member near the first nose pad and a first transmission mechanism connected to the drive mechanism are provided in the first connecting part, and a second guide member near the second nose pad and a second transmission mechanism connected to the drive mechanism are provided in the second connecting part. The first nose pad is connected to the drive mechanism via the first transmission mechanism for position adjustment and to the first guide for angle adjustment; the second nose pad is connected to the drive mechanism via the second transmission mechanism for position adjustment and to the second guide for angle adjustment.
2. The adjustable nose pad module as described in claim 1, characterized in that, The driving mechanism includes a lead screw, a first slider, and a second slider. The lead screw is rotatably connected within the main body and has an external thread. Both the first and second sliders have internal threaded holes that mate with the external thread. The first and second sliders are screwed to the lead screw via their respective internal threaded holes engaging the external thread. The first slider is connected to the first nose pad via the first transmission mechanism, and the second slider is connected to the second nose pad via the second transmission mechanism.
3. The adjustable nose pad module as described in claim 2, characterized in that, A dividing block is provided in the middle of the lead screw, and the external threads on the lead screw located on both sides of the dividing block are in opposite directions.
4. The adjustable nose pad module as described in claim 3, characterized in that, The drive mechanism further includes a drive motor disposed within the main body, the output shaft of which is connected to one end of the lead screw; and... Inside the main body, there is a guide rail parallel to the lead screw, and both the first slider and the second slider are slidably connected to the guide rail.
5. The adjustable nose pad module as described in claim 4, characterized in that, The guide rail includes a guide rod parallel to the lead screw, a first guide sliding hole is provided on the first slider, and a second guide sliding hole is provided on the second slider. The guide rod passes through the first guide sliding hole and the second guide sliding hole in sequence.
6. The adjustable nose pad module as described in claim 1, characterized in that, The first transmission mechanism includes a first connecting rod and a second connecting rod; wherein, one end of the first connecting rod is fixedly connected to the first slider, the other end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the end of the second connecting rod away from the first connecting rod is rotatably connected to the first nose pad; The second transmission mechanism includes a third link and a fourth link; wherein, one end of the third link is fixedly connected to the second slider, the other end of the third link is rotatably connected to one end of the fourth link, and the end of the fourth link away from the third link is rotatably connected to the second nose pad.
7. The adjustable nose pad module as described in claim 6, characterized in that, A first sliding guide groove is provided in the first connecting portion, and a second sliding guide groove is provided in the second connecting portion; wherein, The first transmission mechanism is disposed in the first sliding guide groove, and the second transmission mechanism is disposed in the second sliding guide groove.
8. The adjustable nose pad module as described in claim 7, characterized in that, The first sliding guide groove includes a first inclined groove and a first extended groove that are connected to each other. The first connecting rod is disposed in the first inclined groove, and the second connecting rod is disposed in the first extended groove. The second sliding guide groove includes a second inclined groove and a second extended groove that are connected to each other. The third connecting rod is disposed in the second inclined groove, and the fourth connecting rod is disposed in the second extended groove.
9. The adjustable nose pad module as described in claim 8, characterized in that, A first connecting block is connected to the first nose pad, and a first elongated hole communicating with the first extension groove is provided on the first connecting part. The first connecting block extends into the first extension groove through the first elongated hole and is connected to the second connecting rod. A second connecting block is connected to the second nose pad. A second elongated hole communicating with the second extension groove is provided on the second connecting part. The second connecting block extends into the second extension groove through the second elongated hole and is connected to the fourth connecting rod.
10. The adjustable nose pad module as described in claim 9, characterized in that, The first guide includes a first upper limit stop block disposed at the upper end of the first elongated hole and a first lower limit stop block disposed at the lower end of the first elongated hole; the second guide includes a second upper limit stop block disposed at the upper end of the second elongated hole and a second lower limit stop block disposed at the lower end of the second elongated hole.