Camera clamping focusing mechanism and rotary focusing device

Abstract

The utility model provides a camera clamping focusing mechanism and a rotary focusing device. The camera clamping and focusing mechanism comprises a mounting plate, a rotary focusing ring and a clamping assembly, a rotating opening is formed in the mounting plate, and the rotary focusing ring is rotationally embedded in the rotating opening; the clamping assembly comprises a top disc, a bottom disc and at least two clamping arms. The chassis is rotationally embedded in the inner ring of the rotary focusing ring; the top disc is slidably stacked on the bottom disc and fixedly connected to the inner ring wall of the rotary focusing ring. A center clamping cavity is formed in the top disc, opposite guide sliding grooves are formed in the cavity wall of the center clamping cavity, and at least two spiral sliding holes are formed in the bottom disc. Each spiral sliding hole corresponds to one guide sliding groove. The sliding part of each clamping arm is arranged in one guide sliding groove in a sliding mode, a guide sliding column is arranged in the corresponding spiral sliding hole in a protruding mode, the sliding part of each clamping arm can slide along the guide sliding groove by rotating the base plate, and therefore the clamping parts of the clamping arms can be relatively away from each other so as to be matched with cameras of various models.

Description

Technical Field

[0001] The present disclosure relates to the technical field of automobile camera focusing, and in particular to a camera clamping focusing mechanism and a rotating focusing device. Background Art

[0002] As the demand for automotive intelligence continues to increase, cameras are increasingly being installed in vehicles for recognition and sensing. To ensure image quality, cameras often require focus adjustment before leaving the factory, leading some manufacturers to further research and development.

[0003] For example, Chinese patent document CN108683835A discloses a camera focusing mechanism, which, from top to bottom, comprises an upper bearing cover, a synchronous wheel, a lens focusing base plate, and a lower bearing cover. A focusing cage is located between the upper bearing cover and the synchronous wheel, a bearing is located between the synchronous wheel and the lens focusing base plate, and a motor is located at the bottom of the lens focusing base plate. The focusing cage has a focusing claw in the center, and linear bearings, a focusing screw, and a spring are located along its edge. The synchronous wheel is equipped with a timing belt and connected to a small synchronous wheel; a guide shaft is located on the synchronous wheel.

[0004] However, the design of the above-mentioned camera focusing mechanism has the following problems:

[0005] Although the above-mentioned camera focusing mechanism can automatically focus the camera, due to the limitations of its focusing claw structure, a single focusing claw can only clamp a camera of a single specification for focusing. When it is necessary to focus cameras of different specifications, it is necessary to frequently replace the corresponding focusing claws, which makes the above-mentioned camera focusing mechanism extremely inconvenient to use. Utility Model Content

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a camera clamping and focusing mechanism and a rotating focusing device that can adapt to various models of cameras.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A camera clamping and focusing mechanism comprises a mounting plate and a rotary focusing ring; the mounting plate is provided with a rotating opening, and the rotary focusing ring is rotatably embedded in the rotating opening;

[0009] The camera clamping and focusing mechanism also includes a clamping component;

[0010] The clamping assembly includes a top plate, a bottom plate and at least two clamping arms; the bottom plate is rotatably embedded in the inner ring of the rotary focus ring; the top plate is slidably stacked on the bottom plate and fixedly connected to the inner ring wall of the rotary focus ring; a central clamping cavity is provided on the top plate, and the cavity wall of the central clamping cavity is provided with relatively arranged guide grooves, and at least two spiral sliding holes are provided on the bottom plate; each of the spiral sliding holes is arranged corresponding to a guide sliding groove and extends obliquely toward the central clamping cavity; the sliding portion of each clamping arm is slidably arranged in a guide sliding groove, and a guide sliding column is protruded into the corresponding spiral sliding hole; the clamping portions of each clamping arm are oriented towards the center position of the central clamping cavity, and can approach or move away from each other as the bottom plate rotates to clamp the camera.

[0011] In one embodiment, the clamping arm includes a slide plate and a triangular clamping piece; the slide plate is slidably set in the guide slide groove, the guide slide column is set on the slide plate, and the side of the triangular clamping piece is fixedly connected to the slide plate; the angular position of the triangular clamping piece is oriented towards the center position of the central clamping cavity, and an arc-shaped bayonet is opened.

[0012] In one embodiment, the cavity wall of the central clamping cavity includes two parallel guide sliding sides and two oppositely arranged installation sides, each installation side has a guide sliding groove, and the embedded part of the skateboard is slidably set in the guide sliding groove; the main body of the skateboard is located in the central clamping cavity, and the main body of the skateboard slides against one of the guide sliding sides respectively.

[0013] In one embodiment, the chassis is provided with a plurality of arc-shaped sliding holes at intervals, and the connecting line of the plurality of arc-shaped sliding holes forms a guide ring; the central clamping cavity is concentrically arranged with the guide ring, and the top plate is provided with a guide pile protruding into each of the arc-shaped sliding holes.

[0014] In one embodiment, a guide rod assembly is fixedly provided on the top plate, and the clamping arm is slidably provided on the guide rod assembly.

[0015] In one embodiment, the guide rod assembly is parallel to a line connecting the two opposite guide grooves.

[0016] In one embodiment, the number of the guide rod assemblies is at least two.

[0017] In one embodiment, the guide rod assembly is disposed in the central cavity, and both ends of the guide rod assembly are respectively connected to the cavity walls of the central cavity.

[0018] In one embodiment, the guide rod assembly includes a guide rod body and a slider body, the guide rod body is fixedly arranged in the central clamping cavity; the slider body is slidably arranged on the guide rod body and clamped on the rod body of the guide rod body; the clamping arm is fixed on the slider body.

[0019] A rotary focusing device comprises the camera clamping focusing mechanism of any of the above embodiments.

[0020] Compared with the prior art, the present disclosure has at least the following advantages:

[0021] 1) By sliding the sliding portion of each clamping arm in a guide slot, since the sliding portion of each clamping arm is provided with a guide slide post protruding into the corresponding spiral slide hole, and each spiral slide hole extends obliquely toward the central clamping cavity, when the chassis rotates in the inner ring of the rotary focus ring, since the top plate is fixedly connected to the inner ring wall of the rotary focus ring, that is, the chassis will rotate relative to the top plate, the guide slide post will move toward the central clamping cavity under the guidance of the spiral slide hole, and the guide slide post drives the sliding portion of each clamping arm to slide along the guide slot, thereby enabling the clamping portions of each clamping arm to move relatively to clamp the camera, and finally pushing the rotary focus ring to drive the clamping assembly to rotate to adjust the focal length of the camera.

[0022] 2) Compared with the camera focusing mechanism in the prior art, the above-mentioned camera clamping and focusing mechanism can rotate the chassis so that the sliding part of each clamping arm slides along the guide groove, thereby making the clamping parts of each clamping arm relatively far away to adapt to various models of cameras, and relatively close to clamp the camera for focal length adjustment. There is no need to repeatedly replace the clamping components to adapt to different models of cameras, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 An exploded view of a camera clamping and focusing mechanism according to an embodiment of the present disclosure;

[0025] Figure 2 for Figure 1 A cross-sectional structural diagram of the assembled state of the camera clamping and focusing mechanism shown;

[0026] Figure 3 for Figure 1 The structural diagram of the camera clamping and focusing mechanism is shown.

[0027] Figure numerals: 10, camera clamping and focusing mechanism; 100, mounting plate; 110, rotating mouth; 200, rotary focusing ring; 300, clamping assembly; 310, top plate; 3110, central clamping cavity; 3111, guide slide groove; 3112, guide slide pile; 311a, guide slide side; 311b, mounting side; 320, chassis; 3210, spiral slide hole; 3220, arc-shaped slide hole; 330, clamping arm; 3310, slide plate; 3320, triangular clamp; 3221, arc-shaped bayonet; 340, guide slide column; 350, guide rod assembly; 3510, guide rod body; 3520, slider body. DETAILED DESCRIPTION

[0028] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0032] like Figure 1 and Figure 2As shown, a camera clamping and focusing mechanism 10 of an embodiment includes a mounting plate 100, a rotary focusing ring 200 and a clamping assembly 300; a rotating opening 110 is opened on the mounting plate 100, and the rotary focusing ring 200 is rotatably embedded in the rotating opening 110; the clamping assembly 300 includes a top plate 310, a bottom plate 320 and at least two clamping arms 330; the bottom plate 320 is rotatably embedded in the inner ring of the rotary focusing ring 200; the top plate 310 is slidably stacked on the bottom plate 320 and fixedly connected to the inner ring wall of the rotary focusing ring 200; a central clamping cavity 3110 is opened on the top plate 310, and the The cavity wall of the central clamping cavity 3110 is provided with relatively arranged guide grooves 3111, and at least two spiral sliding holes 3210 are provided on the chassis 320; each of the spiral sliding holes 3210 is arranged corresponding to a said guide sliding groove 3111, and extends obliquely toward the central clamping cavity 3110; the sliding portion of each of the clamping arms 330 is slidably set in a said guide sliding groove 3111, and a guide sliding column 340 is protruded into the corresponding spiral sliding hole 3210; the clamping portion of each of the clamping arms 330 is oriented toward the center position of the central clamping cavity 3110, and can approach or move away from each other as the chassis 320 rotates to clamp the camera.

[0033] When the cam 310 is in the closed position, the cam 310 is in the closed position, and the cam 310 is in the closed position, so that the cam 310 can be adjusted by the cam 310 to adjust the focus of the camera.

[0034] It can be understood that compared with the camera focusing mechanism in the prior art, the above-mentioned camera clamping and focusing mechanism 10 can rotate the chassis 320 so that the sliding part of each clamping arm 330 slides along the guide groove 3111, thereby making the clamping parts of each clamping arm 330 relatively far away to adapt to various models of cameras, and can be relatively close to clamp the camera for focal length adjustment. There is no need to repeatedly replace the clamping assembly 300 to adapt to different models of cameras, and it is more convenient to use.

[0035] Combine Figure 3As shown, in this embodiment, the clamping arm 330 includes a slide 3310 and a triangular clamp 3320. The slide 3310 is slidably disposed within the guide groove 3111. The guide post 340 is disposed on the slide 3310. The triangular clamp 3320 is fixedly connected to the slide 3310 on its side. The triangular clamp 3320 is angularly oriented toward the center of the central clamp cavity 3110 and has an arcuate bayonet 3221. When the guide post 340 moves along the spiral slide hole 3210, the slide 3310 simultaneously slides along the slide groove, pushing the triangular clamp 3320 toward the center of the central clamp cavity 3110, thereby clamping the camera through the arcuate bayonet 3221. The stable structure of the triangular clamp 3320 enables a more stable clamping of the camera.

[0036] Combine Figure 3 As shown, further, the cavity wall of the central clamping cavity 3110 includes two parallel guide sliding side edges 311a and two oppositely arranged mounting side edges 311b, each of the mounting side edges 311b defines a guide sliding groove 3111, and the embedded portion of the slide plate 3310 is slidably disposed within the guide sliding groove 3111; the main body of the slide plate 3310 is located in the central clamping cavity 3110, and the two ends of the main body of the slide plate 3310 respectively slide against one of the guide sliding side edges 311a. It can be understood that when the embedded portion of the slide plate 3310 slides along the guide sliding groove 3111, since the two ends of the main body of the slide plate 3310 respectively slide against one of the guide sliding side edges 311a, the movement direction of the slide plate 3310 can be constrained, allowing the slide plate 3310 to slide more smoothly.

[0037] Combine Figure 1 and Figure 2 As shown, in one embodiment, the bottom plate 320 is provided with a plurality of arcuate sliding holes 3220 at intervals, and the line connecting the plurality of arcuate sliding holes 3220 forms a guide ring; the central clamping cavity 3110 is concentrically disposed with the guide ring, and the top plate 310 is provided with a guide post 3112 protruding from each of the arcuate sliding holes 3220. It will be understood that when the bottom plate 320 is rotated relative to the top plate 310, the guide post 3112 protruding from each of the arcuate sliding holes 3220 on the top plate 310 enables the bottom plate 320 and the top plate 310 to rotate concentrically, ultimately driving each of the clamping arms 330 to slide smoothly.

[0038] Combine Figure 3As shown, in one embodiment, a guide rod assembly 350 is further fixed to the top plate 310, and the clamping arm 330 is slidably disposed on the guide rod assembly 350. It can be understood that by slidably disposing the clamping arm 330 on the guide rod assembly 350, the guide rod assembly 350 can further guide the clamping arm 330, thereby preventing the clamping arm 330 from deflecting during the sliding process.

[0039] Combine Figure 3 As shown, further, the guide rod assembly 350 is parallel to the line connecting the two opposite guide grooves 3111. It can be understood that by arranging the guide rod assembly 350 parallel to the line connecting the two opposite guide grooves 3111, the clamping arm 330 in one guide groove 3111 can be guided by the guide rod assembly 350 to move closer to the clamping arm 330 in the other guide groove 3111, so as to better clamp the camera.

[0040] Combine Figure 3 As shown, in another embodiment, the number of the guide rod assemblies 350 is at least two. It will be appreciated that by providing at least two guide rod assemblies 350, when the clamping arm 330 is placed on the at least two guide rod assemblies 350 for pushing, the clamping arm 330 can move more smoothly. Specifically, the number of the guide rod assemblies 350 can be two, and the two guide rod assemblies 350 can be arranged in parallel.

[0041] Combine Figure 3 As shown, in this embodiment, the guide rod assembly 350 is disposed in the central clamping cavity 3110, and both ends of the guide rod assembly 350 are respectively connected to the cavity wall of the central clamping cavity 3110. It can be understood that by respectively connecting the both ends of the guide rod assembly 350 to the cavity wall of the central clamping cavity 3110, the guide rod assembly 350 can be firmly connected to the cavity wall of the central clamping cavity 3110, thereby better bearing the weight of the clamping arm 330.

[0042] Combine Figure 3As shown, in one embodiment, the guide rod assembly 350 includes a guide rod body 3510 and a slider body 3520. The guide rod body 3510 is fixedly disposed in the central clamping cavity 3110; the slider body 3520 is slidably disposed on the guide rod body 3510 and clamped to the shaft of the guide rod body 3510; and the clamp arm 330 is fixed to the slider body 3520. It can be understood that by fixing the clamp arm 330 to the slider body 3520, the clamp arm 330 can be firmly mounted on the guide rod assembly 350. Since the slider body 3520 is slidably disposed on the guide rod body 3510 and clamped to the shaft of the guide rod body 3510, when the slider body 3520 slides along the shaft of the guide rod body 3510, the clamp arm 330 can slide more smoothly with the slider body 3520.

[0043] The present disclosure further provides a rotary focusing device, comprising the camera clamping and focusing mechanism 10 of any of the above-mentioned embodiments. It is understood that by applying the camera clamping and focusing mechanism 10 of the present disclosure to the rotary focusing device, the sliding portion of each clamping arm 330 slides along the guide groove 3111, thereby enabling the clamping portions of each clamping arm 330 to be relatively separated to accommodate various camera models, and relatively close together to clamp the camera for focus adjustment. This eliminates the need to repeatedly replace the clamping assembly 300 to accommodate different camera models, making it more convenient to use.

[0044] Compared with the prior art, the present disclosure has at least the following advantages:

[0045] When the focus adjustment ring 200 is rotated, the upper plate 310 is fixedly connected to the inner ring wall of the focus adjustment ring 200, that is, the lower plate 320 rotates relative to the upper plate 310, and the guide post 340 is guided by the spiral slide hole 3210 to move toward the central clamping cavity 3110. The guide post 340 drives the sliding portion of each clamping arm 330 to slide along the guide slide groove 3111, thereby enabling the clamping portions of each clamping arm 330 to move relatively and clamp the camera, thereby pushing the focus adjustment ring 200 to drive the clamping assembly 300 to rotate, thereby adjusting the camera focus.

[0046] 2) Compared with the camera focusing mechanism in the prior art, the above-mentioned camera clamping and focusing mechanism 10 can rotate the chassis 320 so that the sliding portion of each clamping arm 330 slides along the guide groove 3111, thereby making the clamping portions of each clamping arm 330 relatively far away to adapt to various models of cameras, and relatively close to clamp the camera for focal length adjustment. There is no need to repeatedly replace the clamping assembly 300 to adapt to different models of cameras, and it is more convenient to use.

[0047] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A camera clamping and focusing mechanism, comprising a mounting plate and a rotary focusing ring; the mounting plate is provided with a rotating opening, and the rotary focusing ring is rotatably embedded in the rotating opening; It is characterized in that The camera clamping and focusing mechanism also includes a clamping component; The clamping assembly includes a top plate, a bottom plate and at least two clamping arms; the bottom plate is rotatably embedded in the inner ring of the rotary focus ring; the top plate is slidably stacked on the bottom plate and fixedly connected to the inner ring wall of the rotary focus ring; a central clamping cavity is provided on the top plate, and the cavity wall of the central clamping cavity is provided with relatively arranged guide grooves, and at least two spiral sliding holes are provided on the bottom plate; each of the spiral sliding holes is arranged corresponding to a guide sliding groove and extends obliquely toward the central clamping cavity; the sliding portion of each clamping arm is slidably arranged in a guide sliding groove, and a guide sliding column is protruded into the corresponding spiral sliding hole; the clamping portions of each clamping arm are oriented towards the center position of the central clamping cavity, and can approach or move away from each other as the bottom plate rotates to clamp the camera.

2. The camera clamping and focusing mechanism according to claim 1, characterized in that: The clamping arm includes a slide plate and a triangular clamping piece; the slide plate is slidably set in the guide slide groove, the guide slide column is set on the slide plate, and the side of the triangular clamping piece is fixedly connected to the slide plate; the angular position of the triangular clamping piece is oriented towards the center position of the central clamping cavity, and an arc-shaped bayonet is provided.

3. The camera clamping and focusing mechanism according to claim 2, characterized in that: The cavity wall of the central clamping cavity includes two parallel guide sliding sides and two oppositely arranged installation sides, each of the installation sides has a guide sliding groove, and the embedded part of the slide plate is slidably arranged in the guide sliding groove; the main body of the slide plate is located in the central clamping cavity, and the main body of the slide plate slides against one of the guide sliding sides respectively.

4. The camera clamping and focusing mechanism according to claim 1, characterized in that: The bottom plate is provided with a plurality of arc-shaped sliding holes at intervals, and the connecting line of the plurality of arc-shaped sliding holes forms a guide ring; the central clamping cavity is concentrically arranged with the guide ring, and the top plate is provided with a guide pile protruding into each of the arc-shaped sliding holes.

5. The camera clamping and focusing mechanism according to claim 1, characterized in that: A guide rod assembly is also fixed on the top plate, and the clamping arm is slidably arranged on the guide rod assembly.

6. The camera clamping and focusing mechanism according to claim 5, characterized in that: The guide rod assembly is parallel to a connecting line of the two opposite guide grooves.

7. The camera clamping and focusing mechanism according to claim 5, characterized in that: The number of the guide rod assemblies is at least two.

8. The camera clamping and focusing mechanism according to claim 5, characterized in that: The guide rod assembly is arranged in the central clamping cavity, and both ends of the guide rod assembly are respectively connected to the cavity walls of the central clamping cavity.

9. The camera clamping and focusing mechanism according to claim 8, characterized in that: The guide rod assembly includes a guide rod body and a slider body. The guide rod body is fixedly arranged in the central clamping cavity; the slider body is slidably arranged on the guide rod body and clamped on the rod body of the guide rod body; the clamping arm is fixed on the slider body.

10. A rotary focusing device, characterized in that: It comprises the camera clamping and focusing mechanism according to any one of claims 1 to 9.

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