CN219085253U

CN219085253U - Light adjusting device

Info

Publication number: CN219085253U
Application number: CN202223276573.6U
Authority: CN
Inventors: 周阳; 晏科满
Original assignee: Shenzhen Leqi Network Technology Co Ltd
Current assignee: Shenzhen Leqi Network Technology Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-26
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a light adjusting device, which comprises a lens and a lens barrel, wherein the lens barrel is sleeved with the lens barrel, and the lens barrel can slide along a first direction relative to the lens; one of the lens barrel and the lens is rotatably provided with a rotating assembly, the rotating assembly comprises a rotating piece, the rotating piece can rotate around a first direction, the other rotating piece is provided with a matching structure corresponding to the rotating piece, one of the rotating piece and the matching structure is provided with an internal thread, the other rotating piece is provided with an external thread, and the internal thread and the external thread extend along the first direction, so that the lens barrel or the lens provided with the matching structure can slide along the first direction along with the rotation of the rotating piece, and the lens barrel can do linear reciprocating motion along the first direction relative to the lens. The lens barrel and the lens in the technical scheme of the utility model do relative translational movement, the operation is smooth, the locking is not easy, the movement is avoided in a threaded matching way, the operation reliability is ensured, and the operation reliability of the light adjusting device is improved.

Description

Light adjusting device

Technical Field

The utility model relates to the technical field of auxiliary photography, in particular to a light adjusting device.

Background

For better shooting experience, shooting auxiliary equipment such as a light adjusting device is generally used, and the light adjusting device can adjust the focal length to help a user obtain a clear picture. However, the existing light adjusting device is unreasonable in structural design, so that the phenomenon of structural jamming easily occurs during focusing, and the working reliability is low.

Disclosure of Invention

The utility model aims to provide a lamplight adjusting device, which aims to enable the lamplight adjusting device to be easily and smoothly focused, avoid the phenomenon of structure blocking during focusing and ensure the working reliability of the lamplight adjusting device.

In order to achieve the above object, the present utility model provides a light adjusting device, comprising:

the lens is used for mounting a lens, the lens barrel is sleeved with the lens, and the lens barrel can slide along a first direction relative to the lens;

one of the lens barrel and the lens is rotationally provided with a rotating assembly, the rotating assembly comprises a rotating piece, the rotating piece can rotate around the first direction, the other rotating piece is provided with a matching structure corresponding to the rotating piece, one of the rotating piece and the matching structure is provided with an internal thread, the other rotating piece is provided with an external thread, the internal thread and the external thread extend along the first direction, and the internal thread and the external thread are in threaded fit, so that the lens barrel or the lens provided with the matching structure can slide along the first direction along with the rotation of the rotating piece, and the lens barrel can do linear reciprocating motion along the first direction relative to the lens.

Optionally, the rotating member includes a rotating portion and a gear portion that are connected to each other, and an end of the rotating portion away from the gear portion is in threaded engagement with the engagement structure;

the lens barrel or the lens is provided with an installation cavity, the installation cavity is communicated with the outside, the rotating assembly further comprises a gear assembly, the gear assembly is installed in the installation cavity and can rotate in the installation cavity, and the gear assembly is meshed with the gear portion.

Optionally, the gear assembly includes a driving gear and a transmission gear, the transmission gear is disposed between the driving gear and the gear portion of the rotating member, the transmission gear includes a first gear and a second gear that are connected, the first gear is meshed with the driving gear, and the second gear is meshed with the gear portion of the rotating member.

Optionally, the driving gear rotates around a second direction, and the second direction and the first direction form an included angle; the driving gear and the first gear are provided as helical gears such that the second gear rotates about the first direction under rotation of the driving gear.

Optionally, the light adjusting device further includes a mounting member, the mounting member is mounted in the mounting cavity, the mounting member has a first mounting groove, a second mounting groove and a third mounting groove, the second mounting groove is respectively communicated with the first mounting groove and the third mounting groove, the driving gear is mounted in the first mounting groove, the driving gear is mounted in the second mounting groove, and the rotating member is mounted in the third mounting groove.

Optionally, one of the groove wall of the first mounting groove and the driving gear is provided with a first limiting column, the other one is provided with a first limiting hole, and the first limiting column is rotatably inserted into the first limiting hole; and/or the number of the groups of groups,

one of the groove wall of the second mounting groove and the transmission gear is provided with a second limiting column, the other one is provided with a second limiting hole, and the second limiting column is rotationally inserted into the second limiting hole; and/or the number of the groups of groups,

one of the groove wall of the third mounting groove and the rotating piece is provided with a third limiting column, the other one of the groove wall of the third mounting groove and the rotating piece is provided with a third limiting hole, and the third limiting column is rotationally inserted into the third limiting hole.

Optionally, the rotating assembly further includes a knob at least partially protruding from a surface of the lens barrel, and the knob is connected to the driving gear so that the driving gear rotates following the rotation of the knob.

Optionally, the rotating assembly further comprises a twisting rod, the twisting rod comprises a rotating section and a hand pushing section, the rotating section and the hand pushing section are arranged at an included angle, one end of the rotating section, which is far away from the hand pushing section, is rotationally connected with the eccentric part of the knob, and the twisting rod has a storage state and a use state;

when the torsion bar is in a storage state, the whole rotating section is close to or abutted to the top surface of the knob, and the hand pushing section is positioned on the periphery side of the knob and is close to or abutted to the side surface of the knob;

when the torsion bar is in a use state, the torsion bar turns over, so that the hand pushing section is far away from the knob.

Optionally, one of the lens barrel and the lens is provided with a limiting groove, the other one of the lens barrel and the lens is provided with a limiting rib, the limiting rib and the limiting groove extend along the first direction, and the limiting groove is in fit and insertion with the limiting rib.

Optionally, the outer wall of the rotating member is provided with the external thread, the matching structure comprises a movable hole, and the hole wall of the movable hole is provided with the internal thread.

According to the technical scheme, when the rotating piece rotates in a threaded matching mode, the lens barrel or the lens with the matching structure moves along the first direction, so that the lens barrel moves along the first direction relative to the lens. Therefore, the rotation direction of the rotating piece can be controlled to control the direction of the relative movement of the lens barrel and the lens, so that the lens barrel can do linear reciprocating motion along the first direction relative to the lens, and focusing is achieved. Because the lens barrel and the lens do relative translational movement, the operation is smooth, the lens barrel and the lens are not easy to be blocked, and the relative movement between the lens barrel and the lens is avoided in a threaded fit mode, the operation reliability is ensured, and the operation reliability of the light adjusting device is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a light adjusting device according to the present utility model;

FIG. 2 is a schematic cross-sectional view of a light adjusting device according to the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of an exploded view of a portion of the structure of the light adjusting device of the present utility model;

FIG. 5 is a schematic view of an exploded view of another part of the structure of the light adjusting device of the present utility model;

fig. 6 is a schematic structural view of a rotating assembly of the light adjusting device of the present utility model.

Fig. 7 is a schematic view showing a structure of a torsion bar of the light adjusting device in a use state.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "and/or" throughout this document includes three schemes, taking a and/or B as an example, including a technical scheme, a technical scheme B, and a technical scheme that both a and B satisfy; in addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The specific structure of the light adjusting device will be mainly described below.

Referring to fig. 1 to 7, in an embodiment of the present utility model, the light adjusting device includes a lens 100 and a lens barrel 200, the lens 100 is used for mounting a lens 110, the lens barrel 200 is sleeved with the lens 100, and the lens barrel 200 is slidable along a first direction relative to the lens 100; one of the lens barrel 200 and the lens 100 is rotatably provided with a rotation assembly, the rotation assembly comprises a rotation member 310, the rotation member 310 can rotate around the first direction, the other one of the rotation member 310 and the engagement structure is provided with an internal thread (not shown in the figure), the other one of the rotation member 310 and the engagement structure is provided with an external thread (not shown in the figure), the internal thread and the external thread extend along the first direction, and the internal thread and the external thread are engaged, so that the lens barrel 200 or the lens 100 provided with the engagement structure can slide along the first direction along with the rotation of the rotation member 310, thereby the lens barrel 200 can reciprocate linearly along the first direction relative to the lens 100.

In this embodiment, the first direction may be understood as a length direction of the lens barrel 200, for example, may be an axial direction of the lens barrel 200. The internal thread and the external thread extend along the first direction, which means that the extending trend of the internal thread and the external thread is the first direction, so that when the rotating member 310 rotates, the mating structure moves along the first direction relative to the rotating member 310, so that the lens barrel 200 moves along the first direction relative to the lens 100.

According to the technical scheme of the utility model, when the rotating member 310 rotates in a threaded fit manner, the lens barrel 200 or the lens 100 provided with the fit structure moves along the first direction, so that the lens barrel 200 moves along the first direction relative to the lens 100. In this way, the rotation direction of the rotator 310 may be controlled to control the direction in which the lens barrel 200 and the lens 100 move relatively, so that the lens barrel 200 may reciprocate linearly along the first direction relative to the lens 100, thereby achieving focusing. Because the lens barrel 200 and the lens 100 do relative translational movement, the operation is smooth, the lens barrel is not easy to be blocked, and the relative movement between the lens barrel 200 and the lens 100 is avoided in a threaded fit mode, so that the reliability of the operation is ensured, and the reliability of the operation of the light adjusting device is improved.

There are many forms of the mating structure, and in some embodiments, the outer wall of the rotating member 310 is provided with the external thread, and the mating structure includes a movable hole 120, and the wall of the movable hole 120 is provided with the internal thread. In other embodiments, the rotating member 310 may be provided with a movable hole, the hole wall of the movable hole is provided with an internal thread, the matching structure includes a matching column, and the outer wall of the matching column is provided with an external thread. The mating structure may also be in other forms, not illustrated herein.

In some embodiments, the rotating member 310 includes a rotating portion 311 and a gear portion 312 connected to each other, and an end of the rotating portion 311 remote from the gear portion 312 is in threaded engagement with the engagement structure; the lens barrel 200 or the lens 100 has a mounting cavity 220, the mounting cavity 220 communicates with the outside, and the rotation assembly further includes a gear assembly mounted to the mounting cavity 220 and rotatable within the mounting cavity 220, the gear assembly being engaged with the gear portion 312. In this embodiment, the rotating member 310 may be rotated by rotating the gear assembly, and the reliability of the light adjusting device is improved due to the high reliability of the transmission motion of the gear transmission manner.

Further, the gear assembly includes a driving gear 320 and a transmission gear 330, the transmission gear 330 is disposed between the driving gear 320 and the gear portion 312 of the rotating member 310, the transmission gear 330 includes a first gear 331 and a second gear 332 connected to each other, the first gear 331 is meshed with the driving gear 320, and the second gear 332 is meshed with the gear portion 312 of the rotating member 310. The actual gear assembly is composed of a plurality of gears, which is beneficial to improving focusing precision. The number of teeth of the first gear 331 may be the same as or different from that of the second gear 332, and in practical application, the driving gear 320 rotates around a second direction, where the second direction forms an included angle with the first direction; the driving gear 320 and the first gear 331 are provided as helical gears such that the second gear 332 rotates around the first direction under rotation of the driving gear 320. Therefore, the movement direction is flexibly and skillfully changed, and the installation position of the rotating assembly is reasonably arranged according to actual requirements. Taking the first direction as the axial direction of the lens barrel 200 as an example, the rotating member 310 may be installed inside the lens barrel 200 to extend along the axial direction of the lens barrel 200, and the driving gear 320 may be installed on the circumferential wall of the lens barrel 200 to avoid the end wall of the lens barrel 200, and simultaneously facilitate the user to rotate the driving gear 320.

In some embodiments, the light adjusting device further includes a mounting member 400, the mounting member 400 is mounted in the mounting cavity 220, the mounting member 400 has a first mounting groove 410, a second mounting groove 420 and a third mounting groove 430, the second mounting groove 420 is respectively communicated with the first mounting groove 410 and the third mounting groove 430, the driving gear 320 is mounted in the first mounting groove 410, the driving gear 330 is mounted in the second mounting groove 420, and the rotating member 310 is mounted in the third mounting groove 430. The gear is installed in the mounting groove, can play limiting displacement to the gear to a certain extent, avoid the gear to take place abnormal conditions such as deflection in rotatory in-process, guarantee the stable and reliable work of gear to improve light adjusting device's reliability.

Further, one of the slot wall of the first mounting slot 410 and the driving gear 320 is provided with a first limiting post 411, the other one is provided with a first limiting hole, and the first limiting post 411 is rotatably inserted into the first limiting hole; and/or, one of the groove wall of the second mounting groove 420 and the transmission gear 330 is provided with a second limiting post 421, and the other one is provided with a second limiting hole, and the second limiting post 421 is rotatably inserted into the second limiting hole; and/or, one of the groove wall of the third mounting groove 430 and the rotating member 310 is provided with a third limiting post 313, and the other one is provided with a third limiting hole, and the third limiting post 313 is rotatably inserted into the third limiting hole. The arrangement further prevents the gear from deflecting, and further improves the reliability of the light adjusting device.

It should be noted that, in order to prevent the gear from deflecting and facilitate the installation of the gear, the installation member 400 may be designed separately, for example, the installation member 400 may be composed of an installation body 401, a first cover body 402 and a second cover body 403, the installation body 401 is provided with the first installation groove 410, the second installation groove 420 and the third installation groove 430, the first cover body 402 is covered with the opening of the first installation groove 410, and the first cover body 402 may be provided with a through hole to expose the rotating portion of the driving gear 320; the second cover 403 covers the second mounting groove 420 and the third mounting groove 430.

In some embodiments, the rotation assembly further includes a knob 500, the knob 500 at least partially protruding from the surface of the lens barrel 200, the knob 500 being connected to the driving gear 320 such that the driving gear 320 rotates following the rotation of the knob 500. In this embodiment, the driving gear 320 may be rotated by rotating the knob 500, so as to finally achieve focusing, where the knob 500 protrudes at least partially from the surface of the lens barrel 200, so that a user can rotate the knob 500, and the convenience of focusing is improved.

Further, the rotating assembly further includes a torsion bar 600, the torsion bar 600 includes a rotating section 610 and a pushing section 620, the rotating section 610 and the pushing section 620 are disposed at an included angle, one end of the rotating section 610 away from the pushing section 620 is rotatably connected with the eccentric portion of the knob 500, and the torsion bar 600 has a storage state and a use state; in the storage state of the twist lever 600, the whole rotating section 610 is close to or abutted against the top surface of the knob 500, and the hand pushing section 620 is located at the periphery of the knob 500 and is close to or abutted against the side surface of the knob 500; in the use state of the twist rod 600, the twist rod 600 is turned over, so that the hand push section 620 is far away from the knob 500. In this embodiment, the rotating section 610 is rotatably connected to the knob 500, so that an included angle between the rotating section 610 and the knob 500 can be adjusted, so that the torsion bar 600 has a storage state and a use state, and referring to fig. 4, the torsion bar 600 shown in fig. 4 is in the storage state, and referring to fig. 7, the torsion bar 600 shown in fig. 7 is in the use state. In the storage state of the torsion bar 600, the angle between the rotating section 610 and the knob 500 may be 0-15 degrees, such as 0 degrees; in use, the angle between the rotating segment 610 and the knob 500 may be 165-180 degrees, such as 180 degrees. The user can directly rotate the knob 500 to rotate the driving gear 320, or can rotate the rotating section 610 to push the pushing section 620 after the torsion bar 600 is in the use state, so that the pushing section 620 drives the knob 500 to rotate to realize the rotation of the driving gear 320, thereby saving the torque force and easily rotating the knob 500. When the torsion bar 600 is not used, the torsion bar 600 may be placed in a storage state, so that the space additionally occupied by the torsion bar 600 is reduced.

In some embodiments, one of the lens barrel 200 and the lens 100 is provided with a limiting groove 210, the other one is provided with a limiting rib 130, the limiting rib 130 and the limiting groove 210 extend along the first direction, and the limiting groove 210 is adapted to be inserted into the limiting rib 130. In this way, the lens barrel 200 is restricted from rotating and shifting relative to the lens 100, so that the lens barrel 200 can only perform linear reciprocating motion in the first direction relative to the lens 100, and focusing accuracy is improved.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A light adjustment device, comprising:

2. The light adjustment device of claim 1, wherein the rotating member comprises a rotating portion and a gear portion connected to each other, and an end of the rotating portion remote from the gear portion is screw-engaged with the engagement structure;

3. A light fixture according to claim 2 wherein the gear assembly comprises a drive gear and a transfer gear, the transfer gear being disposed between the drive gear and the gear portion of the rotatable member, the transfer gear comprising a first gear and a second gear connected, the first gear being in mesh with the drive gear, the second gear being in mesh with the gear portion of the rotatable member.

4. A light regulating device according to claim 3, wherein said drive gear rotates about a second direction, said second direction being disposed at an angle to said first direction; the driving gear and the first gear are provided as helical gears such that the second gear rotates about the first direction under rotation of the driving gear.

5. A light regulating device according to claim 3, further comprising a mounting member mounted to said mounting cavity, said mounting member having a first mounting groove, a second mounting groove and a third mounting groove, said second mounting groove being in communication with said first mounting groove and said third mounting groove, respectively, said drive gear being mounted to said first mounting groove, said drive gear being mounted to said second mounting groove, said rotating member being mounted to said third mounting groove.

6. The light adjusting device according to claim 5, wherein one of a groove wall of the first mounting groove and the driving gear is provided with a first limit post, the other one is provided with a first limit hole, and the first limit post is rotatably inserted into the first limit hole; and/or the number of the groups of groups,

7. The light modulation device according to any one of claims 3-6, wherein the rotation assembly further comprises a knob protruding at least partially from a surface of the lens barrel, the knob being coupled to the driving gear such that the driving gear rotates following rotation of the knob.

8. The light adjustment device of claim 7, wherein the rotating assembly further comprises a torsion bar, the torsion bar comprises a rotating section and a hand-pushing section, the rotating section is arranged at an included angle with the hand-pushing section, one end of the rotating section away from the hand-pushing section is rotatably connected with the eccentric part of the knob, and the torsion bar has a storage state and a use state;

9. The light adjusting device according to any one of claims 1 to 6, wherein one of the lens barrel and the lens is provided with a limit groove, the other one is provided with a limit rib, the limit rib and the limit groove extend along the first direction, and the limit groove is adapted to be inserted into the limit rib.

10. A light regulating device according to any one of claims 1 to 6, wherein the outer wall of the rotating member is provided with the external thread, the mating structure comprises a movable hole, and the wall of the movable hole is provided with the internal thread.