Lens module and optical equipment

Abstract

The utility model relates to the technical field of lens protection, and discloses a lens module and an optical device, the lens module comprises a lens cover, a lens seat and a linkage member, one end of the lens seat is provided with a lens, one end of the linkage member is rotatably connected with the lens cover, the other end of the linkage member is rotatably connected with the lens seat, and when the lens cover rotates towards a second rotation direction relative to the linkage member, the lens cover rotates towards the second rotation direction. The lens cover can rotate to the outer side of the lens when the lens cover rotates in the first rotation direction relative to the lens base and the linkage piece rotates in the second rotation direction relative to the lens base, and the lens cover can rotate to the peripheral side of the lens base when the lens cover rotates in the first rotation direction relative to the lens base and the linkage piece rotates in the first rotation direction relative to the lens base; the end, close to the lens cover, of the linkage piece can extend towards the outer side of the lens base, the distance between the lens cover and the outer surface of the lens base is increased, a certain gap can be kept between the lens cover and the outer surface of the lens base all the time, direct contact abrasion of the lens cover and a functional structure on the lens base is avoided, the unfolding angle of the lens cover is increased, and the view of the lens is prevented from being shielded.

Description

Technical Field

[0001] This utility model relates to the field of lens protection technology, and in particular to a lens module and optical device. Background Technology

[0002] Optical equipment (such as thermal imagers and infrared cameras) has wide applications in various fields such as target detection, temperature measurement, and night vision imaging. As a core optical component, its lens usually needs to be effectively protected by a lens cap when not in use to prevent damage from dust, collisions, or environmental factors.

[0003] However, in related technologies, the lens cap of optical devices is usually opened and closed by a pivot. During the opening process, the flipping trajectory of the lens cap is prone to spatial interference with the functional structure on the device body. This not only causes mechanical friction or collision between the lens cap and the functional structure, but also limits the flipping angle of the lens cap, resulting in a limited unfolding angle of the lens cap. Utility Model Content

[0004] The present invention aims to provide a lens module and optical device to solve the technical problem in the prior art where the lens cover is prone to friction and collision with the functional structure during the lens cover opening process, resulting in a limited opening angle of the lens cover.

[0005] The present invention addresses its technical problem by providing the following technical solution: a lens module, comprising:

[0006] Mirror cover;

[0007] Mirror mount, one end of which has a lens;

[0008] A linkage component, one end of which is rotatably connected to the lens cover, and the other end of which is rotatably connected to the lens mount;

[0009] When the lens cover rotates in the first rotation direction relative to the linkage member, and the linkage member rotates in the first rotation direction relative to the lens base, the lens cover can rotate to the outer periphery of the lens base;

[0010] When the lens cap rotates in the second rotation direction relative to the linkage member, and the linkage member rotates in the second rotation direction relative to the lens mount, the lens cap can rotate to the outside of the lens.

[0011] The second rotation direction is opposite to the first rotation direction.

[0012] In some embodiments, the lens cover is rotatable relative to the linkage between a first position and a second position, and the linkage is rotatable relative to the lens mount between a third position and a fourth position;

[0013] The lens cover can rotate relative to the linkage in a first rotational direction to a first position, thereby causing the linkage to rotate relative to the lens mount in the first rotational direction to a third position, so that the lens cover is located on the outer periphery of the lens mount; and

[0014] The lens cap can rotate relative to the linkage in a second rotational direction to a second position, thereby driving the linkage to rotate relative to the lens mount in a second rotational direction to a fourth position, so that the lens cap covers the outside of the lens.

[0015] In some embodiments, when the lens cover rotates to a first position relative to the linkage in a first rotation direction, the plane direction of the lens cover is perpendicular to the plane direction of the linkage.

[0016] When the linkage rotates relative to the lens mount in the first rotation direction to the third position, the plane direction of the linkage is perpendicular to the optical axis direction of the lens.

[0017] In some embodiments, the linkage component includes a linkage body, a first rotating part, a first positioning part, and a second positioning part, wherein the first rotating part, the first positioning part, and the second positioning part are respectively disposed at one end of the linkage body;

[0018] The lens cover includes a cover body, a second rotating part, a third positioning part, and a fourth positioning part, wherein the second rotating part, the third positioning part, and the fourth positioning part are respectively located at one end of the cover body;

[0019] The second rotating part is rotatably connected to the first rotating part;

[0020] When the mirror cover rotates relative to the linkage in the first rotation direction to the first position, the third positioning part abuts against the first positioning part;

[0021] When the mirror cover rotates to the second position in the second rotation direction relative to the linkage, the fourth positioning part abuts against the second positioning part.

[0022] In some embodiments, a first rotating shaft is further included; there are two second rotating parts, the first rotating part is disposed between the two second rotating parts, and the first rotating part and the two second rotating parts are rotatably connected by the first rotating shaft;

[0023] The first positioning part and the second positioning part are both located on the outer peripheral surface of the first rotating part; the third positioning part and the fourth positioning part are both located between the two second rotating parts, and the third positioning part and the fourth positioning part are both connected to the cover.

[0024] In some embodiments, the linkage further includes a third rotating part, a first limiting part, and a second limiting part, wherein the third rotating part, the first limiting part, and the second limiting part are respectively disposed at the other end of the linkage body;

[0025] The mirror mount includes a base body, a fourth rotating part, a third limiting part, and a fourth limiting part, wherein the fourth rotating part, the third limiting part, and the fourth limiting part are respectively located at one end of the base body;

[0026] The fourth rotating part is rotatably connected to the third rotating part;

[0027] When the linkage rotates relative to the mirror mount in the first rotation direction to the third position, the third limiting part abuts against the first limiting part;

[0028] When the linkage rotates relative to the mirror mount in the second rotation direction to the fourth position, the fourth limiting part abuts against the second limiting part.

[0029] In some embodiments, a second rotating shaft is also included; there are two fourth rotating parts, and a third rotating part is disposed between the two fourth rotating parts, and the third rotating part and the two fourth rotating parts are rotatably connected by the second rotating shaft;

[0030] The first limiting part and the second limiting part are both provided on the outer peripheral surface of the third rotating part; the third limiting part and the fourth limiting part are both located between the two fourth rotating parts, and the third limiting part and the fourth limiting part are both connected to the seat body.

[0031] In some embodiments, a first damping element and a second damping element are also included;

[0032] The first damping element is disposed between the first rotating part and the second rotating part, and the two ends of the first damping element abut against the first rotating part and the second rotating part respectively;

[0033] The second damping member is disposed between the third rotating part and the fourth rotating part, and the two ends of the second damping member abut against the third rotating part and the fourth rotating part, respectively.

[0034] In some embodiments, a first limiting groove is provided on the end face of the first rotating part or the second rotating part, and the first damping member is disposed in the first limiting groove;

[0035] The end face of the third rotating part or the fourth rotating part is provided with a second limiting groove, and the second damping element is disposed in the second limiting groove.

[0036] To solve its technical problems, this utility model also provides the following technical solution: providing an optical device, the optical device including the lens module described in any of the above embodiments.

[0037] Compared with the prior art, in the lens module and optical device provided by this utility model embodiment, when it is necessary to switch the lens cover from the closed state to the open state, the lens cover can be rotated relative to the linkage in a first rotation direction first. Then, the linkage and the lens cover as a whole can be rotated relative to the lens mount in the first rotation direction, thereby rotating the lens cover to the outer periphery of the lens mount. During the rotation, the end of the linkage near the lens cover can extend outward to the lens mount, increasing the distance between the lens cover and the outer surface of the lens mount. This ensures that the outer surfaces of the lens cover and the lens mount always maintain a certain distance, avoiding direct contact and wear between the lens cover and the functional structures on the lens mount, and increasing the opening angle of the lens cover to avoid obstructing the lens's field of view. Attached Figure Description

[0038] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0039] Figure 1 This is a three-dimensional structural diagram of the lens module provided in this utility model embodiment when the lens cover is in the closed state;

[0040] Figure 2 This is a three-dimensional structural diagram of the lens module provided in this utility model embodiment when the lens cover is in the open state;

[0041] Figure 3 This is a schematic cross-sectional view of the lens module along its axial direction when the lens cover of the lens module is in the closed state in this embodiment of the utility model.

[0042] Figure 4 This is a schematic cross-sectional view of the lens module along its radial direction when the lens cover of the lens module is in the open state in this embodiment of the utility model.

[0043] Figure 5 yes Figure 3 A magnified view of a section at point A in the middle;

[0044] Figure 6 yes Figure 4 A magnified view of a section at point B in the middle;

[0045] Figure 7 This is an exploded view of the lens module provided in this embodiment of the utility model;

[0046] Figure 8This is a cross-sectional structural diagram of the lens module along its radial direction in an embodiment of this utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Lens module; 10. Lens mount; 11. Lens; 12. Mount; 13. Fourth rotating part; 130. Receiving cavity; 131. First mounting hole; 132. Second mounting hole; 14. Third limiting part; 15. Fourth limiting part; 20. Lens cover; 21. Cover body; 22. Second rotating part; 220. Receiving groove; 221. First connecting hole; 222. Second connecting hole; 23. Third positioning part; 24. Fourth Positioning part; 30, linkage component; 31, linkage body; 32, first rotating part; 320, first shaft hole; 321, first limiting groove; 33, first positioning part; 34, second positioning part; 35, third rotating part; 350, second shaft hole; 351, second limiting groove; 36, first limiting part; 37, second limiting part; 40, first rotating shaft; 50, second rotating shaft; 60, first damping component; 70, second damping component. Detailed Implementation

[0049] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0051] The following will be combined with the appendix Figures 1 to 8 The lens module 100 and optical equipment provided in the embodiments of this utility model will be described in detail.

[0052] Please see Figures 1 to 4 This utility model embodiment provides a lens module 100, including a lens mount 10, a lens cover 20, and a linkage component 30.

[0053] One end of the lens mount 10 has a lens 11. One end of the linkage 30 is rotatably connected to the lens cap 20, and the other end of the linkage 30 is rotatably connected to the lens mount 10. When the lens cap 20 rotates relative to the linkage 30 in a first rotation direction, and the linkage 30 rotates relative to the lens mount 10 in the first rotation direction, the lens cap 20 can rotate to the outer periphery of the lens mount 10. When the lens cap 20 rotates relative to the linkage 30 in a second rotation direction, and the linkage 30 rotates relative to the lens mount 10 in the second rotation direction, the lens cap 20 can rotate to the outer side of the lens 11. The second rotation direction is opposite to the first rotation direction. For example, when the first rotation direction is clockwise, the second rotation direction is counterclockwise.

[0054] like Figure 1 and Figure 2 As shown, the lens module 100 can be an optical structure with a lens 11. For example, the lens module 100 can be an infrared thermal imager.

[0055] The lens mount 10 can be roughly cylindrical, rectangular, or polygonal in shape, etc. Understandably, several functional structures are usually provided on the outer surface of the lens mount 10, such as a power button, menu button, battery cover button, etc. The lens 11 is located at one end of the lens mount 10 (that is, the front end of the lens mount 10). The lens 11 can be used to collect and focus light to form a clear image.

[0056] The two ends of the linkage 30 are rotatably connected to the lens mount 10 and the lens cover 20, respectively. The linkage 30 can be located at the end of the lens mount 10 near the lens 11 and extend to the outer periphery of the lens 11 so as to cooperate with the lens cover 20 to realize the closing and opening of the lens cover 20.

[0057] like Figure 3 and Figure 4 As shown, Figure 3 This is a cross-sectional view of the lens module 100 when the lens cap 20 is in the closed state. Figure 4 This is a cross-sectional view of the lens module 100 when the lens cap 20 is in the open state.

[0058] When it is necessary to switch the lens cap 20 from the closed state to the open state, you can first operate the lens cap 20 relative to the linkage 30 in the first rotation direction (corresponding to...). Figure 3 , Figure 4Rotate the linkage 30 clockwise, and then rotate the linkage 30 and the lens cap 20 as a whole relative to the lens base 10 in the first rotation direction. This will rotate the lens cap 20 to the outer periphery of the lens base 10, putting the lens cap 20 in the open state. It can be understood that during the rotation, the end of the linkage 30 near the lens cap 20 can extend outward from the lens base 10, so that there is always a certain gap between the lens cap 20 and the outer surface of the lens base 10. This avoids direct contact and wear between the lens cap 20 and the functional structures on the lens base 10, increases the opening angle of the lens cap 20, and avoids obstructing the field of view of the lens 11.

[0059] When it is necessary to switch the lens cover 20 from the open state to the closed state, you can first operate the lens cover 20 in the second rotation direction relative to the linkage 30 (corresponding to...). Figure 3 , Figure 4 Rotate counterclockwise, and then rotate the linkage 30 and the lens cover 20 as a whole relative to the lens base 10 in the second rotation direction. This will rotate the lens cover 20 to the front end of the lens base 10 and cover the outside of the lens 11, so that the lens cover 20 is in the closed state, thereby protecting the lens 11.

[0060] It should be noted that in some embodiments, the user can manually rotate the lens cover 20 and the linkage 30. In other embodiments, the rotation of the lens cover 20 and the linkage 30 can also be precisely controlled by configuring a drive device.

[0061] Please see Figure 5 and Figure 6 In some embodiments, the lens cap 20 is rotatable relative to the linkage 30 between a first position and a second position, and the linkage 30 is rotatable relative to the lens mount 10 between a third position and a fourth position; the lens cap 20 is rotatable relative to the linkage 30 in a first rotational direction to a first position, thereby causing the linkage 30 to rotate relative to the lens mount 10 in the first rotational direction to a third position, so that the lens cap 20 is located on the outer periphery of the lens mount 10; and the lens cap 20 is rotatable relative to the linkage 30 in a second rotational direction to a second position, thereby causing the linkage 30 to rotate relative to the lens mount 10 in the second rotational direction to a fourth position, so that the lens cap 20 covers the outer side of the lens 11.

[0062] like Figure 5 and Figure 6As shown, when it is necessary to switch the lens cover 20 from the closed state to the open state, the user can pull or push the lens cover 20 in the first rotation direction, so that the lens cover 20 rotates in the first rotation direction relative to the linkage 30 until the lens cover 20 rotates to the first position relative to the linkage 30. After that, the lens cover 20 can no longer rotate in the first rotation direction relative to the linkage 30. At this time, as the user continues to pull or push the lens cover 20 in the first rotation direction, the lens cover 20 and the linkage 30 can rotate as a whole relative to the lens base 10 in the first rotation direction until the linkage 30 rotates to the third position relative to the lens base 10. Then, the lens cover 20 is located on the outer periphery of the lens base 10, and the lens cover 20 is in the open state.

[0063] When it is necessary to switch the lens cover 20 from the open state to the closed state, the user can pull or push the lens cover 20 in the second rotation direction, so that the lens cover 20 rotates relative to the linkage 30 in the second rotation direction until the lens cover 20 rotates to the second position relative to the linkage 30. After that, the lens cover 20 can no longer rotate relative to the linkage 30 in the second rotation direction. At this time, as the user continues to pull or push the lens cover 20 in the second rotation direction, the lens cover 20 and the linkage 30 can rotate as a whole relative to the lens base 10 in the second rotation direction until the linkage 30 rotates to the fourth position relative to the lens base 10. Then, the lens cover 20 is located on the outer periphery of the lens base 10, and the lens cover 20 is in the closed state.

[0064] Therefore, it can be seen that the lens cover 20 can be opened or closed simply by pulling or pushing it, which is convenient and quick.

[0065] like Figure 4 and Figure 6 As shown, in some embodiments, when the lens cap 20 rotates relative to the linkage 30 in the first rotation direction to a first position, the plane of the lens cap 20 is perpendicular to the plane of the linkage 30. When the linkage 30 rotates relative to the lens mount 10 in the first rotation direction to a third position, the plane of the linkage 30 is perpendicular to the optical axis S of the lens 11. The plane of the linkage 30 is the plane formed by the rotation axes of the linkage 30 and the lens cap 20, and the rotation axes of the linkage 30 and the lens mount 10.

[0066] like Figure 4As shown, in this embodiment, when the lens cover 20 is in the open state, the lens cover 20 is parallel to the optical axis direction S of the lens 11, allowing the lens cover 20 to be fully unfolded. This avoids obstruction of the field of view and contact wear caused by the lens cover 20 tilting relative to the optical axis after it is opened. Furthermore, since the linkage 30 is perpendicular to the optical axis direction of the lens 11, the end of the linkage 30 near the lens cover 20 can extend outwards from the lens mount 10 in a direction perpendicular to the optical axis. This increases the distance between the lens cover 20 and the outer surface of the lens mount 10, further preventing contact wear with the functional structure.

[0067] Please refer to the following: Figure 5 , Figure 6 and Figure 7 In some embodiments, the linkage 30 includes a linkage body 31, a first rotating part 32, a first positioning part 33, and a second positioning part 34. The first rotating part 32, the first positioning part 33, and the second positioning part 34 are respectively disposed at one end of the linkage body 31. Optionally, the linkage body 31 can be in the form of a generally flat plate structure. The linkage body 31, the first rotating part 32, the first positioning part 33, and the second positioning part 34 can be integrally formed to ensure its structural strength.

[0068] The lens cover 20 includes a cover body 21, a second rotating part 22, a third positioning part 23, and a fourth positioning part 24. The second rotating part 22, the third positioning part 23, and the fourth positioning part 24 are respectively located at one end of the cover body 21. Optionally, the cover body 21 has a generally plate-like structure, and the cover body 21, the second rotating part 22, the third positioning part 23, and the fourth positioning part 24 can be integrally formed to ensure its structural strength.

[0069] The second rotating part 22 is rotatably connected to the first rotating part 32 to realize relative rotation between the mirror cover 20 and the linkage 30. Optionally, both the first rotating part 32 and the second rotating part 22 can be columnar structures.

[0070] When the mirror cover 20 rotates relative to the linkage 30 in the first rotation direction to the first position, the third positioning part 23 abuts against the first positioning part 33 (see...). Figure 6 This restricts the mirror cover 20 from continuing to rotate relative to the linkage 30 in the first rotation direction, preventing the mirror cover 20 from rotating excessively and ensuring the positional accuracy of the mirror cover 20 in the first position.

[0071] When the lens cover 20 rotates relative to the linkage 30 in the second rotation direction to the second position, the fourth positioning part 24 abuts against the second positioning part 34 (see...). Figure 5 This restricts the mirror cover 20 from continuing to rotate relative to the linkage 30 in the second rotation direction, ensuring the positional accuracy of the mirror cover 20 in the second position.

[0072] In some embodiments, one of the first rotating part 32 and the second rotating part 22 is provided with a rotating shaft, and the other is provided with a rotating shaft hole. The rotating connection between the rotating shaft and the rotating shaft hole is used to achieve the rotational engagement between the two.

[0073] like Figure 7 As shown, in some embodiments, the lens module 100 further includes a first rotating shaft 40, two second rotating parts 22, a first rotating part 32 disposed between the two second rotating parts 22, and the first rotating part 32 and the two second rotating parts 22 are rotatably connected by the first rotating shaft 40; a first positioning part 33 and a second positioning part 34 are both disposed on the outer peripheral surface of the first rotating part 32; a third positioning part 23 and a fourth positioning part 24 are both located between the two second rotating parts 22, and the third positioning part 23 and the fourth positioning part 24 are both connected to the cover 21.

[0074] The first positioning part 33 and the second positioning part 34 can be arranged at intervals along the circumferential direction of the first rotating part 32. The first positioning part 33 and the second positioning part 34 can be positioning protrusions provided on the outer peripheral surface of the first rotating part 32. Optionally, the first positioning part 33 can be provided between the linkage body 31 and the first rotating part 32, that is, the first rotating part 32 is connected to the linkage body 31 through the first positioning part 33. Alternatively, the first rotating part 32 can be directly connected to the linkage body 31.

[0075] A receiving groove 220 is formed between the two second rotating parts 22. When the first rotating part 32 and the two second rotating parts 22 are rotatably connected by the first rotating shaft 40, a portion of the first rotating part 32 is located in the receiving groove 220. Optionally, a third positioning part 23 and a fourth positioning part 24 are formed at opposite ends of the receiving groove 220 along the rotation direction of the first rotating part 32, respectively.

[0076] In some embodiments, the first positioning part 33 includes a first positioning surface, the second positioning part 34 includes a second positioning surface, the third positioning part 23 includes a third positioning surface, and the fourth positioning part 24 includes a fourth positioning surface.

[0077] When the mirror cover 20 rotates to the first position in the first rotation direction relative to the linkage 30, the third positioning surface contacts the first positioning surface. When the mirror cover 20 rotates to the second position in the second rotation direction relative to the linkage 30, the fourth positioning surface contacts the second positioning surface. The surface contact can provide a larger force-bearing area, improve the structural stability during contact, and ensure positioning accuracy.

[0078] Optionally, the first rotating shaft 40 can be a stud. The first rotating part 32 has a first shaft hole 320, one of the second rotating parts 22 has a first connecting hole 221, and the other second rotating part 22 has a second connecting hole 222. The second connecting hole 222 can be a threaded hole. During assembly, the first rotating shaft 40 is passed through the first connecting hole 221 and the first shaft hole 320 in sequence and screwed into the second connecting hole 222 to achieve the rotational connection between the first rotating part 32 and the second rotating part 22.

[0079] In some embodiments, the linkage 30 further includes a third rotating part 35, a first limiting part 36 and a second limiting part 37, which are respectively disposed at the other end of the linkage body 31. Optionally, the linkage body 31, the third rotating part 35, the first limiting part 36 and the second limiting part 37 can be integrally formed to ensure its structural strength.

[0080] The mirror base 10 includes a base body 12, a fourth rotating part 13, a third limiting part 14, and a fourth limiting part 15. The fourth rotating part 13, the third limiting part 14, and the fourth limiting part 15 are respectively located at one end of the base body 12. Optionally, the base body 12, the fourth rotating part 13, the third limiting part 14, and the fourth limiting part 15 can be integrally formed.

[0081] The fourth rotating part 13 is rotatably connected to the third rotating part 35 to realize relative rotation between the mirror base 10 and the linkage 30. Optionally, both the third rotating part 35 and the fourth rotating part 13 can be columnar structures.

[0082] When the linkage 30 rotates relative to the mirror base 10 in the first rotation direction to the third position, the third limiting part 14 abuts against the first limiting part 36 (see...). Figure 6 This restricts the linkage 30 from continuing to rotate relative to the mirror mount 10 in the first rotation direction, preventing the linkage 30 from rotating excessively and ensuring the positional accuracy of the linkage 30 in the third position.

[0083] When the linkage 30 rotates relative to the mirror base 10 in the second rotation direction to the fourth position, the fourth limiting part 15 abuts against the second limiting part 37 (see...). Figure 5 This restricts the linkage 30 from continuing to rotate relative to the mirror mount 10 in the second rotation direction, ensuring the positional accuracy of the linkage 30 in the fourth position.

[0084] In some embodiments, one of the third rotating part 35 and the fourth rotating part 13 is provided with a rotating shaft, and the other is provided with a rotating shaft hole. The rotating connection between the rotating shaft and the rotating shaft hole is used to achieve the rotational engagement between the two.

[0085] In some embodiments, the lens module 100 further includes a second rotating shaft 50, two fourth rotating parts 13, a third rotating part 35 disposed between the two fourth rotating parts 13, and the third rotating part 35 and the two fourth rotating parts 13 are rotatably connected through the second rotating shaft 50; the first limiting part 36 and the second limiting part 37 are both disposed on the outer peripheral surface of the third rotating part 35, the third limiting part 14 and the fourth limiting part 15 are both located between the two fourth rotating parts 13, and the third limiting part 14 and the fourth limiting part 15 are both connected to the base body 12.

[0086] The third rotating part 35 is fixedly connected to the other end of the linkage body 31. The first limiting part 36 and the second limiting part 37 are spaced apart along the circumferential direction of the third rotating part 35. The first limiting part 36 and the second limiting part 37 can be limiting protrusions provided on the outer peripheral surface of the first rotating part 32.

[0087] A receiving cavity 130 is formed between the two fourth rotating parts 13. When the third rotating part 35 and the two fourth rotating parts 13 are rotatably connected via the second rotating shaft 50, a portion of the third rotating part 35 is located in the receiving cavity 130. Optionally, the cavity wall of the receiving cavity 130 includes a third limiting part 14 and a fourth limiting part 15.

[0088] In some embodiments, the first limiting part 36 includes a first limiting surface, the second limiting part 37 includes a second limiting surface, the third limiting part 14 includes a third limiting surface, and the fourth limiting part 15 includes a fourth limiting surface.

[0089] When the linkage 30 rotates relative to the mirror base 10 in the first rotation direction to the third position, the third limiting surface contacts the first limiting surface. When the linkage 30 rotates relative to the mirror base 10 in the second rotation direction to the fourth position, the fourth limiting surface contacts the second limiting surface. Surface contact can provide a larger force-bearing area, improve the structural stability during contact, and ensure positioning accuracy.

[0090] Optionally, the second rotating shaft 50 can be a stud. The third rotating part 35 has a second shaft hole 350, one of the fourth rotating parts 13 has a first mounting hole 131, and the other fourth rotating part 13 has a second mounting hole 132. The second mounting hole 132 can be a threaded hole. During assembly, the second rotating shaft 50 is passed through the first mounting hole 131 and the second shaft hole 350 in sequence and screwed into the second mounting hole 132 to achieve the rotational connection between the third rotating part 35 and the fourth rotating part 13.

[0091] Please see Figure 7 and Figure 8In some embodiments, the lens module 100 further includes a first damping member 60 and a second damping member 70. The first damping member 60 is disposed between the first rotating part 32 and the second rotating part 22, and its two ends abut against the first rotating part 32 and the second rotating part 22, respectively. The second damping member 70 is disposed between the third rotating part 35 and the fourth rotating part 13, and its two ends abut against the third rotating part 35 and the fourth rotating part 13, respectively.

[0092] Both the first damping element 60 and the second damping element 70 can be configured as a ring structure. The first damping element 60 and the second damping element 70 can be made of materials with good elasticity and wear resistance to improve the damping effect. For example, the first damping element 60 and the second damping element 70 can be made of materials such as silicone or rubber.

[0093] During the rotation of the lens cover 20 relative to the linkage 30, the first damping member 60 can provide appropriate resistance, which helps to accurately control the rotation position of the lens cover 20, thereby effectively controlling the rotation angle of the lens cover 20, so that the user can conveniently adjust the opening and closing degree of the lens cover 20 according to actual needs.

[0094] During the rotation of the linkage 30 relative to the mirror mount 10, the second damping element 70 can provide appropriate resistance, which helps to accurately control the rotation position of the linkage 30, thereby effectively controlling the rotation angle of the linkage 30.

[0095] In some embodiments, there are two first damping elements 60 and two rotating parts 22. The two first damping elements 60 are respectively disposed between the first rotating part 32 and the corresponding second rotating part 22 to ensure that the lens cover 20 can obtain balanced and stable resistance during rotation, thereby achieving more precise rotation control.

[0096] Both the second damping element 70 and the fourth rotating part 13 have two units. The two second damping elements 70 are respectively disposed between the third rotating part 35 and the corresponding fourth rotating part 13, ensuring that the linkage 30 can obtain balanced and stable resistance during rotation, thereby achieving more precise rotation control.

[0097] In some embodiments, a first limiting groove 321 is provided on the end face of the first rotating part 32 or the second rotating part 22, and a first damping member 60 is disposed in the first limiting groove 321.

[0098] like Figure 7 As shown, a first limiting groove 321 for accommodating the first damping member 60 is provided on the end face of the first rotating part 32, thereby ensuring the installation position accuracy of the first damping member 60 and ensuring that it will not shift or loosen during rotation. It is understood that the first limiting groove 321 can also be provided on the end face of the second rotating part 22, achieving the same effect.

[0099] In some embodiments, a second limiting groove 351 is provided on the end face of the third rotating part 35 or the fourth rotating part 13, and a second damping member 70 is disposed in the second limiting groove 351.

[0100] like Figure 7 As shown, a second limiting groove 351 for accommodating the second damping member 70 is provided on the end face of the third rotating part 35, thereby ensuring the installation position accuracy of the second damping member 70 and ensuring that it will not shift or loosen during rotation. It is understood that a second limiting groove 351 can also be provided on the end face of the fourth rotating part 13 to achieve the same effect.

[0101] Based on the same inventive concept, this utility model embodiment also provides an optical device, which includes the lens module 100 in any of the above embodiments. Since the optical device includes the lens module 100 in the above embodiments, it also has the beneficial effects of the above embodiments, the specific beneficial effects of which are described above and will not be repeated here.

[0102] Optionally, the optical device is a sight, for example, a thermal imaging sight (infrared sight), which detects the infrared radiation of the target object and converts the temperature distribution map of the target object into a video image through photoelectric conversion, electrical signal processing and other technologies.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lens module, characterized in that, include: Mirror cap (20); A lens mount (10), one end of which has a lens (11); Linkage component (30), one end of which is rotatably connected to the mirror cover (20), and the other end of which is rotatably connected to the mirror base (10); When the lens cover (20) rotates in the first rotation direction relative to the linkage (30), and the linkage (30) rotates in the first rotation direction relative to the lens base (10), the lens cover (20) can rotate to the outer periphery of the lens base (10); When the lens cap (20) rotates in the second rotation direction relative to the linkage (30), and the linkage (30) rotates in the second rotation direction relative to the lens mount (10), the lens cap (20) can rotate to the outside of the lens (11); The second rotation direction is opposite to the first rotation direction.

2. The lens module according to claim 1, characterized in that, The mirror cover (20) is rotatable relative to the linkage (30) between a first position and a second position, and the linkage (30) is rotatable relative to the mirror base (10) between a third position and a fourth position; The lens cover (20) can rotate relative to the linkage (30) in a first rotation direction to a first position, so as to drive the linkage (30) to rotate relative to the lens base (10) in a first rotation direction to a third position, so that the lens cover (20) is located on the outer periphery of the lens base (10); as well as The lens cap (20) can rotate relative to the linkage (30) in a second rotational direction to a second position, so as to drive the linkage (30) to rotate relative to the lens mount (10) in a second rotational direction to a fourth position, so that the lens cap (20) covers the outside of the lens (11).

3. The lens module according to claim 2, characterized in that, When the mirror cover (20) rotates to the first position in the first rotation direction relative to the linkage (30), the plane direction of the mirror cover (20) is perpendicular to the plane direction of the linkage (30); When the linkage (30) rotates relative to the lens mount (10) in the first rotation direction to the third position, the plane direction of the linkage (30) is perpendicular to the optical axis direction of the lens (11).

4. The lens module according to claim 2, characterized in that, The linkage component (30) includes a linkage body (31), a first rotating part (32), a first positioning part (33), and a second positioning part (34), wherein the first rotating part (32), the first positioning part (33), and the second positioning part (34) are respectively disposed at one end of the linkage body (31); The mirror cover (20) includes a cover body (21), a second rotating part (22), a third positioning part (23) and a fourth positioning part (24), wherein the second rotating part (22), the third positioning part (23) and the fourth positioning part (24) are respectively located at one end of the cover body (21); The second rotating part (22) is rotatably connected to the first rotating part (32); When the mirror cover (20) rotates to the first position in the first rotation direction relative to the linkage (30), the third positioning part (23) abuts against the first positioning part (33); When the mirror cover (20) rotates to the second position in the second rotation direction relative to the linkage (30), the fourth positioning part (24) abuts against the second positioning part (34).

5. The lens module according to claim 4, characterized in that, It also includes a first rotating shaft (40); there are two second rotating parts (22), and the first rotating part (32) is disposed between the two second rotating parts (22), and the first rotating part (32) and the two second rotating parts (22) are rotatably connected by the first rotating shaft (40); The first positioning part (33) and the second positioning part (34) are both provided on the outer peripheral surface of the first rotating part (32); The third positioning part (23) and the fourth positioning part (24) are both located between the two second rotating parts (22), and the third positioning part (23) and the fourth positioning part (24) are both connected to the cover (21).

6. The lens module according to claim 4, characterized in that, The linkage component (30) further includes a third rotating part (35), a first limiting part (36) and a second limiting part (37), which are respectively located at the other end of the linkage body (31); The mirror base (10) includes a base body (12), a fourth rotating part (13), a third limiting part (14) and a fourth limiting part (15), wherein the fourth rotating part (13), the third limiting part (14) and the fourth limiting part (15) are respectively located at one end of the base body (12); The fourth rotating part (13) is rotatably connected to the third rotating part (35); When the linkage (30) rotates relative to the mirror base (10) in the first rotation direction to the third position, the third limiting part (14) abuts against the first limiting part (36); When the linkage (30) rotates to the fourth position in the second rotation direction relative to the mirror base (10), the fourth limiting part (15) abuts against the second limiting part (37).

7. The lens module according to claim 6, characterized in that, It also includes a second rotating shaft (50); there are two fourth rotating parts (13), and the third rotating part (35) is disposed between the two fourth rotating parts (13), and the third rotating part (35) and the two fourth rotating parts (13) are rotatably connected by the second rotating shaft (50); The first limiting part (36) and the second limiting part (37) are both provided on the outer peripheral surface of the third rotating part (35); the third limiting part (14) and the fourth limiting part (15) are both located between the two fourth rotating parts (13), and the third limiting part (14) and the fourth limiting part (15) are both connected to the seat (12).

8. The lens module according to claim 6, characterized in that, It also includes a first damping element (60) and a second damping element (70); The first damping member (60) is disposed between the first rotating part (32) and the second rotating part (22), and the two ends of the first damping member (60) abut against the first rotating part (32) and the second rotating part (22) respectively; The second damping member (70) is disposed between the third rotating part (35) and the fourth rotating part (13), and the two ends of the second damping member (70) abut against the third rotating part (35) and the fourth rotating part (13) respectively.

9. The lens module according to claim 8, characterized in that, The first rotating part (32) or the second rotating part (22) has a first limiting groove (321) on its end face, and the first damping member (60) is disposed in the first limiting groove (321); The end face of the third rotating part (35) or the fourth rotating part (13) is provided with a second limiting groove (351), and the second damping member (70) is provided in the second limiting groove (351).

10. An optical device, characterized in that, The optical device includes the lens module as described in any one of claims 1-9.

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