Endoscope rotating device and helmet

Abstract

The utility model belongs to the technical field of protective articles, disclose inner lens rotating device and helmet including inner lens quick release seat and driving gear, inner lens quick release seat includes annular part and connecting portion, connecting portion is fixed in annular part one side, and connecting portion detachably installs inner lens, and the ring inside of annular part is equipped with driven gear;Driving gear is located between connecting portion and annular part, and with the driven gear engagement of annular part ring inside, forms inner and outer gear pair structure, wherein driving gear diameter is less than annular part diameter, and the number of teeth of driving gear is less than the number of teeth of driven gear, and the knob is installed on driving gear, and the knob can adjust driving gear rotation angle, to drive inner lens quick release seat rotation through gear engagement. The utility model's structure connection is compact, and the space is small, when operating, the starting process is more labor-saving and smooth, and the flexible, convenient adjustment of inner lens angle is convenient to realize, can be conveniently disassembled and replace inner lens, improves the convenience of use and user experience.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, and in particular to an inner lens rotating device and a helmet. Background Technology

[0002] The inner lens is a key component of helmet visors, providing functions such as anti-fogging, improved visual clarity, and UV protection. Typically, an air layer forms between the inner and outer lenses, effectively reducing the temperature difference between the inside and outside, thus lowering the risk of fogging on the inner lens. This structure not only prevents blurred vision due to fogging but also maintains clear vision during use, significantly improving safety.

[0003] However, existing internal lens angle adjustment structures suffer from insufficient compactness and large space occupation. Furthermore, users have to exert effort when operating the handle, making it difficult to achieve flexible and easy adjustment of the internal lens angle. In addition, the internal lens is not easy to replace after wear, which affects the overall ease of use and user experience. Utility Model Content

[0004] The purpose of this invention is to provide an inner lens rotating device and a helmet. The device has a compact structure and occupies little space. When the user operates it, the start-up process is more effortless and smooth. It is easy to flexibly and conveniently adjust the angle of the inner lens, and it is easy to disassemble and replace the inner lens, thus improving the convenience of use and the user experience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The internal lens rotating device includes:

[0007] The quick-release mount for an inner lens includes an annular portion and a connecting portion. The connecting portion is fixedly disposed on one side of the annular portion, and the connecting portion is detachably used to mount the inner lens. The inner side of the annular portion is provided with a driven tooth.

[0008] A drive gear is disposed between the connecting part and the annular part, and meshes with the driven teeth on the inner side of the annular part to form an internal and external gear pair structure. The diameter of the drive gear is smaller than the diameter of the annular part, and the number of teeth of the drive gear is smaller than the number of teeth of the driven teeth. A knob is installed on the drive gear, and the knob can adjust the rotation angle of the drive gear so as to drive the quick-release seat of the inner lens to rotate through gear meshing.

[0009] Furthermore, the connecting part is arranged radially along the annular part, the first end of the connecting part is located at the central axis of the annular part, and its second end is detachably connected to the inner lens. The driving gear is located between the first end of the connecting part and the annular part and can mesh with the driven gear to drive the quick-release seat of the inner lens to rotate around the central axis of the annular part.

[0010] Furthermore, the driving gear includes a driving gear body and driving teeth disposed on its outer edge. The driving teeth are disposed within a predetermined angle range along the circumference of the driving gear body. The remaining circumferential area of ​​the driving gear body is a toothless smooth rim structure. The driving teeth mesh with the driven teeth, and the smooth rim structure abuts against the first end of the connecting portion.

[0011] Furthermore, the quick-release mount for the inner lens also includes a limiting part, which is disposed on the quick-release mount for limiting the rotation angle range of the quick-release mount for the inner lens.

[0012] Furthermore, the limiting part includes a limiting groove and a limiting protrusion. The limiting groove is provided on the annular part along its circumference. The limiting groove rotates together with the annular part. One end of the limiting protrusion is fixedly disposed on other fixed components, and the other end is disposed in the limiting groove and slidably connected with the limiting groove.

[0013] Furthermore, the length of the limiting groove along the circumferential direction of the annular portion corresponds to the angular range of the active gear arranged along the circumferential direction of the active wheel body. When the active gear rotates to the circumferential end position of the active gear, the limiting protrusion also slides to the end position of the limiting groove accordingly.

[0014] Furthermore, the knob is provided with anti-slip texture.

[0015] Furthermore, the inner lens can be snapped into place with the connecting part.

[0016] Furthermore, the surface of the inner lens is provided with an anti-fog layer.

[0017] A helmet, comprising a helmet body and an inner lens rotating device as described in any of the preceding claims, the inner lens rotating device being disposed on both sides of the helmet body.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides an inner lens rotating device and helmet, including an inner lens quick-release seat and a drive gear. By setting the driven gear inside the annular portion of the inner lens quick-release seat, and placing the drive gear between two existing connecting parts and the annular structure, an inner and outer gear pair structure is formed, which does not occupy additional external space of the device. This avoids the traditional gear transmission arrangement that requires external extension, making the overall device flatter and more compact. Because the drive gear has a small diameter and a small number of teeth, while the driven gear has a large diameter and a large number of teeth, an unequal transmission structure is formed. Under the same operating force, a larger torque can be output. Users only need to gently rotate the knob to easily rotate the larger inner lens, reducing the operating burden. At the same time, the small number of teeth on the drive gear drives the large number of teeth on the driven gear, resulting in a large transmission ratio, which is beneficial for precise adjustment of small angles. The manual control via the knob is intuitive and does not require complicated operating procedures. The inner lens is detachably installed on the connecting part, which facilitates the replacement of the inner lens and improves the convenience of use and user experience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the internal lens rotating device in this utility model;

[0021] Figure 2 This is a schematic diagram of the inner lens of the helmet in the downward state in this utility model;

[0022] Figure 3 This is a schematic diagram of the inner lens of the helmet in the upward state of this utility model.

[0023] In the picture:

[0024] 1. Inner lens quick-release mount; 2. Annular part; 3. Connecting part; 4. Driven gear; 5. Drive gear; 51. Drive wheel body; 52. Drive gear; 6. Limiting part; 61. Limiting groove; 62. Limiting protrusion; 7. Helmet body; 8. Inner lens. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] Please refer to Figures 1 to 3 As shown, this utility model provides an inner lens rotating device, including an inner lens quick-release seat 1 and a drive gear 5. The inner lens quick-release seat 1 includes an annular part 2 and a connecting part 3. The connecting part 3 is fixedly disposed on one side of the annular part 2, and the inner lens 8 is detachably installed on the connecting part 3. A driven tooth 4 is provided on the inner side of the annular part 2. The drive gear 5 is disposed between the connecting part 3 and the annular part 2, and meshes with the driven tooth 4 on the inner side of the annular part 2 to form an inner and outer gear pair structure. The diameter of the drive gear 5 is smaller than the diameter of the annular part 2, and the number of teeth of the drive gear 5 is smaller than the number of teeth of the driven tooth 4. A knob is installed on the drive gear 5, and the knob can adjust the rotation angle of the drive gear 5 so as to drive the inner lens quick-release seat 1 to rotate through gear meshing.

[0030] By setting the driven gear 4 inside the annular portion 2 of the inner lens quick-release seat 1, the driving gear 5 is placed between the two existing connecting portions 3 and the annular portion 2 structure, forming an inner and outer gear pair structure. The inner and outer gear pair structure is that the driven gear 4 is set inside the ring (usually an annular component or the inner wall of a cylinder); the driving gear 5 is set on the outer edge of the disc or cylinder; the two are in an "internal meshing" state, that is, the driving gear 5 operates inside the driven gear 4, and the force and motion are transmitted through gear meshing. This connection method does not occupy additional external space of the device; it avoids the arrangement method of traditional gear transmission that requires external extension, making the overall device flatter and more compact. Because the driving gear 5 has a small diameter and a small number of teeth, while the driven gear 4 has a large diameter and a large number of teeth, an unequal transmission structure is formed. Under the same operating force, a larger torque can be output. The user can easily drive the larger inner lens 8 to rotate by simply rotating the knob, reducing the operating burden. At the same time, the small-tooth driving gear 5 drives the large-tooth driven gear 4, resulting in a large transmission ratio, which is beneficial for precise adjustment of small angles. The manual control via the knob is intuitive and does not require complicated operating procedures. The inner lens 8 is detachably installed on the connecting part 3, which facilitates the replacement of the inner lens 8 and improves the convenience of use and user experience.

[0031] like Figure 1 As shown, specifically, the connecting part 3 is arranged radially along the annular part 2. The first end of the connecting part 3 is located at the central axis of the annular part 2, and its second end is detachably connected to the inner lens 8. The driving gear 5 is located between the first end of the connecting part 3 and the annular part 2, and can mesh with the driven gear 4 to drive the inner lens quick release seat 1 to rotate around the central axis of the annular part 2.

[0032] The first end of the connecting part 3 is located at the central axis of the annular part 2, which means that the entire inner lens 8 and its transmission structure rotate around the central axis of the annular part 2. This helps to maintain the concentricity and controllability of the rotation trajectory of the inner lens 8, avoid eccentricity problems, and is suitable for the functional requirements of adjusting the opening and closing of the inner lens 8 and multi-angle adjustment. The driving gear 5 is directly set between the first end of the connecting part 3 and the annular part 2. The distance is short and the transmission link is direct, which reduces redundant structures. The gear meshing can achieve high-efficiency and low-energy torque transmission.

[0033] More specifically, the driving gear 5 includes a driving wheel body 51 and driving teeth 52 disposed on its outer edge. The driving teeth 52 are disposed within a predetermined angle range along the circumference of the driving wheel body 51. The remaining circumferential area of ​​the driving wheel body 51 is a toothless, smooth rim structure. The driving teeth 52 mesh with the driven teeth 4, and the smooth rim structure abuts against the first end of the connecting part 3. By displacing the driving teeth 52 only within the predetermined angle range, the driving gear 5 can only mesh with the driven teeth 4 within a certain limited angle range. Once it rotates beyond this range, the driving teeth 52 disengage from the meshing area, and the device will no longer be able to drive rotation, thus preventing the inner lens 8 from rotating continuously without control, causing structural damage or positional deviation, thereby automatically achieving angle limitation. The remaining area is a smooth rim that abuts against the connecting part 3, providing stable support for the driving wheel body 51 without wobbling or eccentricity.

[0034] Since the gear transmission structure may be accidentally rotated by the user if there is no limit, resulting in structural deformation or tooth damage, in order to further prevent excessive rotation and protect the device structure, the inner lens quick release seat 1 also includes a limiting part 6. The limiting part 6 is provided on the inner lens quick release seat 1 and is used to limit the rotation angle range of the inner lens quick release seat 1. The limiting part 6 is used to physically limit the rotation angle range of the inner lens quick release seat 1 to prevent rotation from exceeding the set angle.

[0035] Specifically, the limiting part 6 includes a limiting groove 61 and a limiting protrusion 62. The limiting groove 61 is formed on the annular part 2 along its circumference. The limiting groove 61 rotates together with the annular part 2. One end of the limiting protrusion 62 is fixedly set on other fixed parts, and the other end is set in the limiting groove 61 and slidably connected with the limiting groove 61. The limiting groove 61 is formed on the annular part 2. As it rotates, the limiting protrusion 62 remains fixed and is inserted into the groove. When the rotation angle reaches both ends of the limiting groove 61, the limiting protrusion 62 will lock the edge of the groove, thereby accurately limiting the rotation range. The limiting groove 61 and the limiting protrusion 62 are in sliding fit, so that the rotation process can smoothly slide to the limit position.

[0036] More specifically, the length of the limiting groove 61 along the circumference of the annular portion 2 corresponds to the angular range of the driving gear 52 along the circumference of the driving wheel body 51. When the driving gear 5 rotates to the circumferential end position of the driving gear 52, the limiting protrusion 62 also slides to the end position of the limiting groove 61 accordingly. When the driving gear 52 runs to the end, the limiting protrusion 62 just slides to the end of the limiting groove 61, so that when the gear transmission stops, the limiting is synchronously in place, avoiding the misalignment phenomenon that the driving gear 5 has rotated to the end but the limiting portion 6 has not yet locked or the limiting is locked first but the gear still wants to rotate.

[0037] Combination Figure 2 and Figure 3As shown, exemplarily, when the inner lens 8 is in the upward (open) state, the driving gear 5 rotates counterclockwise by 120°, driving the driven gear 4 to rotate counterclockwise by 47°, thereby driving the inner lens quick-release seat 1 to rotate, forming an unequal transmission structure. During this process, the limiting protrusion 62 simultaneously slides to the top end position of the limiting groove 61, keeping the inner lens 8 stably in the fully open state. When the inner lens 8 is in the downward (closed) state, the driving gear 5 rotates clockwise by 120°, driving the driven gear 4 to rotate counterclockwise by 47°, thereby driving the inner lens quick-release seat 1 to rotate, forming an unequal transmission structure. During this process, the limiting protrusion 62 simultaneously slides to the bottom end position of the limiting groove 61, keeping the inner lens 8 stably in the fully closed state. The setting of the limiting part 6 not only accurately limits the rotation angle, but also effectively prevents the driving gear 5 from axially shifting or moving outward due to uneven force during the meshing of the driving gear 5 and the driven gear 4, ensuring smooth transmission and structural stability.

[0038] It is understandable that the unequal transmission ratio between the driving gear 5 and the driven gear 4 can be set according to actual needs, and no specific limitation is made here.

[0039] To make it easier for users to rotate the knob, the knob is equipped with anti-slip texture. The anti-slip texture increases the coefficient of friction between the user's fingers and the knob surface, so that even if the hands are wet, gloves are worn, or in micro-operation scenarios, it can be rotated steadily without slipping, making it easier to open and close the inner lens 8.

[0040] Optionally, the inner lens 8 can be snapped into place with the connecting part 3. The snap-fit ​​connection allows the inner lens 8 to be locked in place, enabling the user to quickly complete the assembly by feel. The connecting part 3 has a slot, and the inner lens 8 has elastic claws at both ends. When the elastic claws are inserted into the slot, it can be automatically installed.

[0041] In other embodiments, the inner lens 8 and the connecting portion 3 may be connected by magnetic attraction, but are not limited to this method.

[0042] In some embodiments, the surface of the inner lens 8 is provided with an anti-fog layer, which can effectively prevent the inner lens 8 from fogging during use.

[0043] This utility model also provides a helmet, including a helmet body 7 and the inner lens rotating device in any of the above embodiments, with the inner lens rotating device disposed on both sides of the helmet body 7. By integrating the inner lens rotating device on both sides of the helmet body 7, the inner lens 8 can be quickly installed and accurately rotated, improving the convenience of product use, while meeting the needs of multi-functional and frequent replacement, and providing a good user experience and ease of maintenance.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An intraocular lens rotating device, characterized by, include: The quick-release mount (1) for the inner lens includes an annular part (2) and a connecting part (3). The connecting part (3) is fixedly disposed on one side of the annular part (2), and the connecting part (3) can be detachably installed with the inner lens (8). The inner side of the annular part (2) is provided with a driven tooth (4). The driving gear (5) is located between the connecting part (3) and the annular part (2) and meshes with the driven tooth (4) on the inner side of the annular part (2) to form an inner and outer gear pair structure. The diameter of the driving gear (5) is smaller than the diameter of the annular part (2), and the number of teeth of the driving gear (5) is smaller than the number of teeth of the driven tooth (4). A knob is installed on the driving gear (5) and the knob can adjust the rotation angle of the driving gear (5) so as to drive the inner lens quick release seat (1) to rotate through gear meshing.

2. The internal lens rotating device according to claim 1, characterized in that, The connecting part (3) is arranged radially along the annular part (2). The first end of the connecting part (3) is located at the central axis of the annular part (2), and its second end is detachably connected to the inner lens (8). The driving gear (5) is located between the first end of the connecting part (3) and the annular part (2) and can mesh with the driven gear (4) to drive the quick-release seat (1) of the inner lens to rotate around the central axis of the annular part (2).

3. The internal lens rotating device according to claim 2, characterized in that, The driving gear (5) includes a driving gear body (51) and a driving tooth (52) disposed on its outer edge. The driving tooth (52) is disposed within a predetermined angle range along the circumference of the driving gear body (51). The remaining circumferential area of ​​the driving gear body (51) is a toothless smooth rim structure. The driving tooth (52) meshes with the driven tooth (4). The smooth rim structure abuts against the first end of the connecting part (3).

4. The internal lens rotating device according to claim 3, characterized in that, The quick-release mount (1) for the inner lens also includes a limiting part (6), which is disposed on the quick-release mount (1) for limiting the rotation angle range of the quick-release mount (1).

5. The internal lens rotating device according to claim 4, characterized in that, The limiting part (6) includes a limiting groove (61) and a limiting protrusion (62). The limiting groove (61) is provided on the annular part (2) along its circumference. The limiting groove (61) rotates together with the annular part (2). One end of the limiting protrusion (62) is fixedly set on the fixing component, and the other end is set in the limiting groove (61) and slidably connected with the limiting groove (61).

6. The internal lens rotating device according to claim 5, characterized in that, The length of the limiting groove (61) along the circumference of the annular portion (2) corresponds to the angle range of the active tooth (52) along the circumference of the active wheel body (51). When the active gear (5) rotates to the circumferential end position of the active tooth (52), the limiting protrusion (62) also slides to the end position of the limiting groove (61).

7. The internal lens rotating device according to any one of claims 1-6, characterized in that, The knob has anti-slip texture.

8. The internal lens rotating device according to any one of claims 1-6, characterized in that, The inner lens (8) can be snapped into the connecting part (3).

9. The internal lens rotating device according to any one of claims 1-6, characterized in that, The inner lens (8) has an anti-fog layer on its surface.

10. A helmet, characterized in that, The helmet body (7) includes an inner lens rotating device as described in any one of claims 1-9, wherein the inner lens rotating device is located on both sides of the helmet body (7).

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