Swing angle adjusting mechanism and imaging device
By designing a swing angle adjustment mechanism including a base, a rotating shaft, an adjustment screw, a moving part and a connecting part, the problem of low accuracy and inconvenience in adjusting the swing angle of the image equipment is solved, and efficient and accurate swing angle adjustment is achieved.
Patent Information
- Application Number
- CN202421712086.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the prior art, when the imaging device adjusts the swing angle, the ball head connecting rod is not effectively restricted, resulting in difficulty in adjusting the swing angle slightly, low adjustment accuracy and inconvenient method.
A swing angle adjustment mechanism is designed, including a base, a first rotating shaft, a first adjustment screw, a first moving member and a first connecting member. By rotating the first adjustment screw, the first moving member moves on the screw, abuts against the first limiting portion, and drives the first connecting member to rotate about the first rotation axis, thereby adjusting the swing angle.
It realizes efficient and accurate swing angle adjustment, improves adjustment efficiency and accuracy, and is convenient to use.
Smart Images
Figure CN222887313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a swing angle adjusting mechanism and an imaging device. Background Art
[0002] In the prior art, during the use of imaging devices such as projectors and cameras, it is necessary to slightly adjust the angular position of the imaging device so that the lens is aligned with a preset position. The imaging device is generally connected to a fixing member such as a tripod or a boom through a pan-tilt device. The pan-tilt device usually adopts a ball head link structure to achieve universal rotation. When the imaging device needs to perform up-and-down swing adjustment or left-and-right swing adjustment, due to the lack of effective constraints on the ball head link, it is very difficult to perform fine adjustment of the swing angle, the adjustment accuracy is low, and the adjustment method is very inconvenient. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, one of the purposes of the utility model is to propose a swing angle adjusting mechanism with high adjustment efficiency and accuracy and convenient use; the second purpose is to propose an imaging device adopting the above swing angle adjusting mechanism.
[0004] A swing angle adjusting mechanism according to an embodiment of the first aspect of the utility model includes: a base, on which a first rotating shaft is provided; a first adjusting screw, rotatably provided only on the base, the first adjusting screw being spatially orthogonal to the first rotating shaft; a first moving member, threadedly connected to the first adjusting screw to reciprocate along the length direction of the first adjusting screw; a first connecting member, rotatably provided on the base around the axial direction of the first rotating shaft, the first connecting member being provided with a first limiting portion capable of abutting against the front end and the rear end of the moving direction of the first moving member; when the first moving member moves on the first adjusting screw, it abuts against the first limiting portion to drive the first connecting member to rotate relative to the base around the axial direction of the first rotating shaft.
[0005] A swing angle adjusting mechanism according to an embodiment of the utility model has at least the following beneficial effects:
[0006] The swing angle adjusting mechanism with the above structure rotates the first adjusting screw, and the first moving member feeds and moves on the first adjusting screw to abut against the first limiting portion of the first connecting member, thereby driving the first connecting member to rotate relative to the base around the axial direction of the first rotating shaft, so as to adjust the swing angle in a certain direction. The movement accuracy of the first moving member is high, so that the change of the swing angle can be accurately realized, and the adjustment efficiency is high and the use is convenient.
[0007] In some embodiments of the present utility model, a threaded through hole adapted to the first adjusting screw is provided in the middle of the first moving member. The outer walls at both ends of the first moving member along the length direction of the first adjusting screw are both provided with first arc surfaces, and at least part of the first arc surfaces are arranged around the radial circumference of the first adjusting screw.
[0008] In some embodiments of the present utility model, the first moving member includes a spherical part. The threaded through hole is provided through the radial direction of the spherical part, and part of the spherical surface of the spherical part constitutes the first arc surface. The first connecting member is provided with second arc surfaces that abut against both sides of the spherical part along the moving direction of the first moving member.
[0009] In some embodiments of the present utility model, a rotation-limiting part is protrudingly provided on the spherical part. The rotation-limiting part can abut against the first connecting member to prevent the first moving member from rotating together with the first adjusting screw.
[0010] In some embodiments of the present utility model, the first connecting member has two parallel and spaced-apart clamping plates. The second arc surfaces are provided on the inner sides of the clamping plates. The spherical part is clamped between the two clamping plates, and the first adjusting screw passes through the gap between the two clamping plates.
[0011] In some embodiments of the present utility model, the first limiting part is defined between all the second arc surfaces. The inner diameter dimension of the second arc surface is adapted to the diameter dimension of the spherical part so that the spherical part can only rotate relative to the first connecting member.
[0012] In some embodiments of the present utility model, the base is a sleeve member that is penetrated up and down. The first moving member and at least part of the first connecting member are located inside the sleeve member. The first rotating shaft and the first adjusting screw both horizontally penetrate through the sleeve member, and one end of the first adjusting screw is connected with a knob part that extends outside the sleeve member.
[0013] In some embodiments of the present utility model, a second rotating shaft that is spatially orthogonal to the first rotating shaft is provided on the base. The base is only rotatably provided with a second adjusting screw that is parallel to the first rotating shaft. A second moving member that reciprocally moves along its length direction is threadedly connected to the second adjusting screw. The base is rotatably provided around the axial direction of the second rotating shaft with a second connecting member. The second connecting member is provided with a second limiting part that can abut against the front end and the rear end of the moving direction of the second moving member. The second moving member abuts against the second limiting part to drive the second connecting member to rotate relative to the base around the axial direction of the second rotating shaft.
[0014] In some embodiments of the present utility model, one of the first connecting member and the second connecting member is used to connect the imaging device, and the other is used to connect the bracket assembly.
[0015] An imaging device according to an embodiment of the second aspect of the present utility model includes: the swing angle adjusting mechanism of any of the above technical solutions. By rotating the first adjusting screw to drive the first moving member to feed and move on the first adjusting screw, and using the first moving member to contact the first limiting portion to drive the first connecting member to rotate relative to the base around the axial direction of the first rotating shaft, the swing angle adjustment of the imaging device can be accurately realized, and the adjustment efficiency is high and the use is convenient.
[0016] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0018] Figure 1 is a schematic structural diagram of Embodiment 1 of the swing angle adjusting mechanism of the present utility model;
[0019] Figure 2 is Figure 1 a schematic cross-sectional view of the embodiment along the axial direction of the first adjusting screw;
[0020] Figure 3 is Figure 1 a schematic cross-sectional view of the embodiment along the radial direction of the first adjusting screw;
[0021] Figure 4 is Figure 1 a schematic structural diagram of the separated first connecting member and the first moving member of the embodiment;
[0022] Figure 5 is a schematic structural diagram of Embodiment 2 of the swing angle adjusting mechanism of the present utility model;
[0023] Figure 6 is Figure 5 a schematic structural diagram of the embodiment after removing the base;
[0024] Figure 7 is a schematic structural diagram of an embodiment of the imaging device of the present utility model.
[0025] REFERENCE NUMERALS:
[0026] Base 100; first rotating shaft 200; first adjusting screw 300; knob part 310; first moving part 400; threaded through hole 410; first arc surface 420; rotation limiting part 430; first connecting part 500; second arc surface 510; clamping plate 520; second rotating shaft 600; second adjusting screw 710; second moving part 720; second connecting part 730; bracket assembly 800. Detailed implementation manners
[0027] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.
[0028] In the description of the present invention, it should be understood that with respect to the orientation description, for example, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0029] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0030] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0031] See Figures 1 to 4, a swing angle adjusting mechanism according to an embodiment of the present invention includes: a base 100, on which a first rotating shaft 200 is provided; a first adjusting screw 300, rotatably provided only on the base 100, the first adjusting screw 300 being spatially orthogonal to the first rotating shaft 200; a first moving member 400, threadedly connected to the first adjusting screw 300 to reciprocate along the length direction of the first adjusting screw 300; a first connecting member 500, rotatably provided on the base 100 around the axial direction of the first rotating shaft 200, the first connecting member 500 being provided with a first limiting portion capable of abutting against the front end and the rear end of the moving direction of the first moving member 400; when the first moving member 400 moves on the first adjusting screw 300, it abuts against the first limiting portion to drive the first connecting member 500 to rotate relative to the base 100 around the axial direction of the first rotating shaft 200.
[0032] Among them, the base 100 can be used as a fixed seat, and the base 100 can also be connected to components such as a tripod and a boom. The first connecting member 500 can be directly connected to the imaging device, or the first connecting member 500 is connected to the imaging device through a pan-tilt head. The swing angle adjusting mechanism with the above structure rotates the first adjusting screw 300, and the first moving member 400 feeds and moves on the first adjusting screw 300 to abut against the first limiting portion of the first connecting member 500, thereby driving the first connecting member 500 to rotate relative to the base 100 around the axial direction of the first rotating shaft 200, so as to adjust the swing angle in a certain direction to meet the use needs of shooting or projection. The movement accuracy of the first moving member 400 is high to accurately realize the change of the swing angle, and the adjustment efficiency is high and the use is convenient.
[0033] See Figure 2 and Figure 4 , in some embodiments of the present invention, a threaded through hole 410 adapted to the first adjusting screw 300 is provided in the middle of the first moving member 400, and first arc surfaces 420 are provided on the outer walls at both ends of the first moving member 400 along the length direction of the first adjusting screw 300, and at least part of the first arc surfaces 420 are arranged around the radial circumference of the first adjusting screw 300. It should be noted that the whole formed by the first moving member 400 and the first adjusting screw 300 is equivalent to a lead screw-nut mechanism. When the first moving member 400 abuts against the first limiting portion and moves, the first connecting member 500 receives a torque, and the first connecting member 500 can rotate relative to the base 100 around the first rotating shaft 200. During the rotation of the first connecting member 500 around the first rotating shaft 200, the position where the first moving member 400 contacts the first limiting portion changes, and the setting of the first arc surface 420 ensures that the first connecting member 500 rotates stably at a preset swing rate, avoiding the situation that the angular position of the first connecting member 500 relative to the first moving member 400 suddenly changes, and improving the stability of swing angle adjustment.
[0034] See Figures 2 to 4 Figures 2 to 4 , in some embodiments of the present utility model, the first moving member 400 includes a spherical portion, the threaded through hole 410 is radially disposed through the spherical portion, a partial spherical surface of the spherical portion constitutes the first arc surface 420, and the first connecting member 500 is provided with a second arc surface 510 that abuts against both sides of the spherical portion along the moving direction of the first moving member 400. It can be understood that the second arc surface 510 abutting against both sides of the moving direction of the first moving member 400 can prevent the first connecting member 500 and the base 100 from moving in the direction perpendicular to the first adjusting screw 300. Moreover, when the first connecting member 500 rotates relative to the first moving member 400 around the first rotating shaft 200, the spherical portion neither interferes with the free rotation of the first connecting member 500, nor can the spherical portion limit the first connecting member 500 to rotate relative to the first moving member 400 only around the first rotating shaft 200, further improving the smoothness and stability of the swing angle adjusting mechanism.
[0035] See Figure 3 and Figure 4 Figure 4 , in some embodiments of the present utility model, in order to prevent the first adjusting screw 300 from driving the first moving member 400 to rotate together when rotating, resulting in the first moving member 400 being unable to reciprocate along the first adjusting screw 300, a rotation limiting portion 430 is protrudingly provided on the spherical portion, and the first connecting member 500 can abut against both sides of the rotation limiting portion 430 along the moving direction of the first moving member 400 to play a role of moving guidance.
[0036] See Figures 2 to 4 Figures 2 to 4 , in some embodiments of the present utility model, the first connecting member 500 has two parallelly spaced-apart clamping plates 520, the second arc surface 510 is provided on the inner side of the clamping plates 520, the spherical portion is clamped between the two clamping plates 520, and the first adjusting screw 300 passes through the gap between the two clamping plates 520. Specifically, a second arc surface 510 is formed on the inner surface of each of the two clamping plates 520, and a multi-point contact is formed between the spherical portion and all the second arc surfaces 510. When the spherical portion moves along the first adjusting screw 300, the second arc surface 510 offsets on the spherical surface of the spherical portion. In addition, the two clamping plates 520 can also clamp both sides of the rotation limiting portion 430, restricting the rotation limiting portion 430 to reciprocate only along the length direction of the gap between the two clamping plates 520. The above structure helps to improve the structural compactness, reduce the number of components, and simplify the manufacturing process.
[0037] See Figures 2 to 4, in some embodiments of the present utility model, the first limiting portion is defined between all the second arc surfaces 510, and the inner diameter dimension of the second arc surface 510 is adapted to the diameter dimension of the spherical portion so that the spherical portion can only rotate relative to the first connecting member 500. It can be understood that all the second arc surfaces 510 can not only serve as the first limiting portion but also prevent the spherical portion from moving in other directions relative to the first connecting member 500 except for rotating around the first rotating shaft 200, ensuring the accuracy and reliability of the swing angle adjustment of the imaging device on the first connecting member 500.
[0038] See Figures 1 to 3 , in some embodiments of the present utility model, in order to prevent foreign objects from touching the first adjusting thread, the first moving member 400 and the first connecting member 500, the base 100 is a sleeve member that is penetrated up and down. The first moving member 400 and at least part of the first connecting member 500 are located inside the sleeve member. The first rotating shaft 200 and the first adjusting screw 300 are both horizontally disposed through the sleeve member. One end of the first adjusting screw 300 is connected with a knob portion 310 that extends outside the sleeve member, and the knob portion 310 facilitates the user to manually rotate the first adjusting screw 300.
[0039] See Figure 5 and Figure 6 , in some embodiments of the present utility model, a second rotating shaft 600 that is spatially orthogonal to the first rotating shaft 200 is provided on the base 100. The base 100 is only rotatably provided with a second adjusting screw 710 that is parallel to the first rotating shaft 200. A second moving member 720 that reciprocates along its length direction is threadedly connected to the second adjusting screw 710. The base 100 is rotatably provided around the axis of the second rotating shaft 600 with a second connecting member 730. The second connecting member 730 is provided with a second limiting portion that can abut against the front end and the rear end of the moving direction of the second moving member 720. The second moving member 720 abuts against the second limiting portion and drives the second connecting member 730 to rotate relative to the base 100 around the axis of the second rotating shaft 600. The above structure can realize the swing angle adjustment in two mutually orthogonal directions. For example, while realizing the up-and-down swing adjustment, the left-and-right swing adjustment can also be realized. It can be understood that according to the needs of use, more directions of swing angle adjustment can be expanded by increasing the number of swing angle adjustment mechanisms. In some embodiments, the second rotating shaft 600 and the first rotating shaft 200 can also be arranged to intersect at an acute angle in space, etc.
[0040] See Figure 7, in some embodiments of the present utility model, one of the first connecting member 500 and the second connecting member 730 is used to connect the imaging device, and the other is used to connect the bracket assembly 800. At this time, the above structure can be used to realize the rotation of the imaging device around the first rotation axis 200 and the second rotation axis 600, so as to realize the swing adjustment in two directions. For example, while realizing the up-and-down swing adjustment, the left-and-right swing adjustment can also be realized, so as to meet different shooting requirements or projection requirements. Specifically, the first connecting member 500 can be connected to the imaging device through a pan-tilt head or a quick-release plate assembly, and the second connecting member 730 is connected to the bracket assembly 800, and the bracket assembly 800 generally adopts a tripod.
[0041] See Figure 7 , the present utility model also discloses an imaging device, including: the swing angle adjustment mechanism of any of the above technical solutions. The imaging device drives the first moving member 400 to feed and move on the first adjustment screw 300 by rotating the first adjustment screw 300, and uses the first moving member 400 to contact the first limiting portion to drive the first connecting member 500 to rotate relative to the base 100 around the axial direction of the first rotation axis 200, which can accurately realize the swing angle adjustment of the imaging device, and has high adjustment efficiency and convenient use.
[0042] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0043] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A swing angle adjustment mechanism, characterized in that: include: A base (100), wherein a first rotating shaft (200) is provided on the base (100); A first adjusting screw (300) is rotatably disposed on the base (100), and the first adjusting screw (300) is spatially orthogonal to the first rotating shaft (200); A first moving member (400) is threadedly connected to the first adjusting screw (300) so as to reciprocate along the length direction of the first adjusting screw (300); A first connecting member (500) is arranged on the base (100) for axial rotation around the first rotating shaft (200), and the first connecting member (500) is provided with a first limiting portion capable of abutting against the front end and the rear end of the moving direction of the first moving member (400); When the first moving member (400) moves on the first adjusting screw (300), it abuts against the first limiting portion to drive the first connecting member (500) to rotate relative to the base (100) around the axial direction of the first rotating shaft (200).
2. A swing angle adjustment mechanism according to claim 1, characterized in that: A threaded through hole (410) adapted to the first adjusting screw (300) is provided in the middle of the first movable member (400), and first arc surfaces (420) are provided on the outer walls of both ends of the first movable member (400) along the length direction of the first adjusting screw (300), and at least part of the first arc surface (420) is arranged radially circumferentially around the first adjusting screw (300).
3. A swing angle adjustment mechanism according to claim 2, characterized in that: The first movable member (400) includes a spherical portion, the threaded through hole (410) is radially arranged to penetrate the spherical portion, a partial spherical surface of the spherical portion constitutes the first arc surface (420), and the first connecting member (500) is provided with a second arc surface (510) abutting against both sides of the spherical portion along the moving direction of the first movable member (400).
4. A swing angle adjustment mechanism according to claim 3, characterized in that: A limited rotation portion (430) is protruded from the spherical portion, and the limited rotation portion (430) can abut against the first connecting member (500) to prevent the first moving member (400) from rotating along with the first adjusting screw (300).
5. The swing angle adjustment mechanism according to claim 3, characterized in that: The first connecting member (500) has two parallel and spaced-apart clamping plates (520), the second arc surface (510) is arranged on the inner side of the clamping plates (520), the spherical body is clamped between the two clamping plates (520), and the first adjusting screw (300) passes through the gap between the two clamping plates (520).
6. The swing angle adjustment mechanism according to claim 3, characterized in that: The first limiting portion is defined between all the second arc surfaces (510), and the inner diameter of the second arc surface (510) is matched with the diameter of the spherical portion so that the spherical portion can only rotate relative to the first connecting member (500).
7. The swing angle adjustment mechanism according to claim 1, characterized in that: The base (100) is a sleeve member that passes through from top to bottom, the first moving member (400) and at least part of the first connecting member (500) are located inside the sleeve member, the first rotating shaft (200) and the first adjusting screw (300) are both horizontally inserted into the sleeve member, and one end of the first adjusting screw (300) is connected to a knob portion (310) that extends out of the sleeve member.
8. The swing angle adjustment mechanism according to claim 1, characterized in that: The base (100) is provided with a second rotating shaft (600) which is spatially orthogonal to the first rotating shaft (200); the base (100) is only provided with a second adjusting screw (710) which is parallel to the first rotating shaft (200) and is rotatable; the second adjusting screw (710) is threadedly connected with a second moving member (720) which reciprocates along its length direction; the base (100) is provided with a second connecting member (730) which is axially rotated around the second rotating shaft (600); the second connecting member (730) is provided with a second limiting portion which can abut against the front and rear ends of the moving direction of the second moving member (720); the second moving member (720) abuts against the second limiting portion to drive the second connecting member (730) to rotate relative to the base (100) around the axial direction of the second rotating shaft (600).
9. The swing angle adjustment mechanism according to claim 8, characterized in that: One of the first connecting member (500) and the second connecting member (730) is used to connect to the imaging device, and the other is used to connect to the bracket assembly (800).
10. An imaging device, characterized in that: include: A swing angle adjustment mechanism according to any one of claims 1 to 9.