CN213422587U

CN213422587U - Micro-distance camera focusing detection mechanism

Info

Publication number: CN213422587U
Application number: CN202022728637.6U
Authority: CN
Inventors: 李彦维; 肖利兵; 封鸣鹏
Original assignee: Sichuan Zhuoke Zhilian Optoelectronics Co ltd
Current assignee: Sichuan Zhuoke Zhilian Optoelectronics Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-11
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a micro-distance camera focusing detection mechanism, which belongs to the technical field of cameras and comprises a support frame and a fixed frame, wherein the fixed frame is fixed on the upper surface of the support frame through screws, a first support rod is inserted into one side of the fixed frame, the fixed frame is supported by the support frame, and a first support rod is inserted into the side surface of the fixed frame through rotation, the other end of the first support rod is hinged with a second support rod, the other end of the second support rod is inserted into a mounting groove in a sliding way, the other end of the second support rod is connected with a spring, so that the hinged part of the first support rod and the second support rod is elastically extruded towards the circle center of the fixed frame, a lens to be detected is clamped through elasticity, the upper surface of a sliding block is provided with a motor, the output end of the motor sequentially passes through a first speed change gear and, the slide block can be finely adjusted through multi-layer speed reduction, and the accuracy of focal length adjustment is improved.

Description

Micro-distance camera focusing detection mechanism

Technical Field

The utility model relates to a camera technical field specifically is a microspur camera detection mechanism that focuses on.

Background

The macro lens is a special lens used for macro photography and is mainly used for shooting very fine objects such as flowers, insects and the like. In order to correctly focus on an object at a very close distance, a macro lens is usually designed to be able to be stretched longer so as to make the optical center as far as possible from the photosensitive element, and in the design of the lens group, attention must be paid to control of distortion, chromatic aberration, and the like at a close distance. Most macro lenses have a focal length larger than that of a standard lens, and thus are not completely suitable for general photography. There are generally two types of structures for macro photographic lenses. A macro photographic lens adopts a structure of a built-in telescopic lens cone, and the other structure of exchanging the front and back positions of an optical lens group in the lens.

According to the conventional micro-distance camera focusing detection device disclosed by CN 211239990U, a pressing block and a positioning seat are difficult to stably control an oversize, undersize or square lens, the lens is difficult to flexibly clamp, the adjustment of a sliding block is difficult to adjust the distance with high precision requirement, and the applicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a microspur camera detection mechanism that focuses, support frame support mount, the side of mount has first bracing piece through rotatory pegging graft, the other end of first bracing piece articulates there is the second bracing piece, the other end of second bracing piece slides and pegs graft in the mounting groove, the other end of second bracing piece is connected with the spring in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a micro-distance camera focusing detection mechanism comprises a supporting frame and a fixing frame, wherein the fixing frame is fixed on the upper surface of the supporting frame through screws, a first supporting rod is inserted into one side of the fixing frame in an inserting mode, a second supporting rod is hinged to the other end of the first supporting rod, an installation groove is formed in one side of the fixing frame, the other end of the second supporting rod is inserted into the installation groove in a sliding mode, and a spring is embedded into the installation groove in an inserting mode;

one end of the spring is welded at one end of the second support rod in the mounting groove, a fixing sleeve is inserted in the fixing frame, a detection lamp is inserted in the fixing sleeve, a guide rail is fixed on one side of the support frame through screws, roller rails are fixed on two sides of the guide rail through screws, a sliding block is clamped on the upper surface of the guide rail, rollers are inserted on two sides of the sliding block, and a motor is fixed on the upper surface of the sliding block through screws;

the output of motor sets up to tooth structure, the output meshing of motor has first change gear, first change gear meshing has second change gear, second change gear meshing in the top of gyro wheel, the upper surface one end of guide rail has the baffle through the screw fixation, the upper surface one end of slider has the focus to gather the board through the screw fixation.

Preferably, the cross section of the joint of the first support rod and the second support rod is an arc-shaped structure.

Preferably, the first support rods, the second support rods and the mounting grooves are arranged into four groups, and the four groups of the first support rods, the second support rods and the mounting grooves are distributed in a circular array.

Preferably, the detection light emitting light is set to be parallel light.

Preferably, the sliding block is arranged in a groove-shaped structure, the notch of the sliding block is arranged downwards, and the width of the notch of the sliding block is equal to the width of the guide rail.

Preferably, the profile of the roller is set to be in a tooth structure, the upper surface of the roller track is set to be in a tooth structure, and the roller is meshed with the upper surface of the roller track.

Preferably, a groove is formed in the side surface of the slider, the first speed change gear and the second speed change gear are arranged in the groove of the slider, and the side surface of the second speed change gear is flush with the side surface of the slider.

Preferably, a reinforcing rib is arranged at the contact position of the focus acquisition plate and the sliding block.

Preferably, the focus collecting plate and the side surface of the fixing frame are arranged in a parallel relationship.

Preferably, the upper surface of the guide rail is marked with length scales.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the support frame supports the mount, the side of mount has first bracing piece through rotatory grafting, the other end of first bracing piece articulates there is the second bracing piece, the other end of second bracing piece slides and pegs graft in the mounting groove, the other end of second bracing piece is connected with the spring, make the articulated department of first bracing piece and second bracing piece to the elastic extrusion of mount centre of a circle department, through elastic clamping to detect the lens, contact insufficient when avoiding ordinary holding frame centre gripping less lens takes place to squint, guaranteed the detection quality of detecting the lamp;

2. the utility model discloses the upper surface of guide rail is provided with the slider, and the last perpendicular surface of slider is provided with the focus and gathers the board, and the rear end of guide rail passes through the screw fixation and has the baffle, has guaranteed that the removal of slider can not drop, and the upper surface of slider is provided with the motor, and the output through the motor loops through first change gear and second change gear transmission gyro wheel and moves on the gyro wheel track, makes the slider can finely tune through the speed reduction of multilayer, has improved the accuracy of focus regulation.

Drawings

FIG. 1 is a front view of the fixing frame of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the top view structure of the slider of the present invention.

In the figure: 1. a support frame; 2. a guide rail; 3. a fixed mount; 4. fixing the sleeve; 5. a first support bar; 6. a second support bar; 7. mounting grooves; 8. a spring; 9. detecting a light; 10. a roller track; 11. a slider; 12. a baffle plate; 13. a roller; 14. a second speed change gear; 15. a first speed change gear; 16. a motor; 17. a focus acquisition board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: the micro-distance camera focusing detection mechanism comprises a support frame 1 and a fixing frame 3, wherein the fixing frame 3 is fixed on the upper surface of the support frame 1 through screws, the stability of the fixing frame 3 is improved, a first supporting rod 5 is inserted into one side of the fixing frame 3, the other end of the first supporting rod 5 is hinged with a second supporting rod 6, the hinged part is used for clamping a lens of a camera, the cross section of the hinged part of the first supporting rod 5 and the second supporting rod 6 is of an arc-shaped structure to prevent the lens from falling off, the first supporting rod 5, the second supporting rod 6 and the mounting groove 7 are all set into four groups, the four groups of the first supporting rod 5, the second supporting rod 6 and the mounting groove 7 are distributed in a circular array manner, the stability of clamping the lens is improved, the mounting groove 7 is formed in one side of the fixing frame 3 and used for fixing the second supporting rod 6, the other end of the second supporting rod, pressure for providing clamping;

one end of a spring 8 is welded at one end of the second support rod 6 in the mounting groove 7, a fixing sleeve 4 is inserted in the fixing frame 3 for fixing a detection lamp 9, the detection lamp 9 is inserted in the fixing sleeve 4 for detecting a clamped lens, the light emitted by the detection lamp 9 is set to be parallel light, the accuracy of the focal length of the lens is convenient to determine, a guide rail 2 is fixed on one side of the support frame 1 through screws for limiting the action of a sliding block 11, roller rails 10 are fixed on the two sides of the guide rail 2 through screws for receiving rollers 13, the outline of each roller 13 is set to be a tooth structure, the upper surface of each roller rail 10 is set to be a tooth structure, the rollers 13 are meshed with the upper surface of each roller rail 10, the sliding block 11 is prevented from deviating, a sliding block 11 is clamped on the upper surface of the guide rail 2 and used for driving a focus collection plate 17 to, the notch of the sliding block 11 is arranged downwards, the width of the notch of the sliding block 11 is equal to the width of the guide rail 2, the sliding block 11 is prevented from laterally deviating, the two sides of the sliding block 11 are inserted with rollers 13 for driving the sliding block 11 to move, and the upper surface of the sliding block 11 is fixed with a motor 16 through screws for driving the rollers 13 to rotate;

the output end of the motor 16 is set to be in a tooth structure, the output end of the motor 16 is meshed with a first speed change gear 15 for reducing the rotating speed of a second speed change gear 14, the first speed change gear 15 is meshed with the second speed change gear 14 for reducing the rotating speed of a roller 13, the second speed change gear 14 is meshed above the roller 13 and is used for driving the roller 13 to be finely adjusted, the side surface of the slider 11 is provided with a groove, the first speed change gear 15 and the second speed change gear 14 are arranged in the groove of the slider 11, the side surface of the second speed change gear 14 is flush with the side surface of the slider 11 to avoid the first speed change gear 15 and the second speed change gear 14 from falling off, one end of the upper surface of the guide rail 2 is fixed with a baffle 12 through a screw to play a limiting role and prevent the slider 11 from falling off, one end of the upper surface of the slider 11 is fixed with a focus acquisition plate 17 through a screw to identify the focus position, the perpendicularity of the focus collection plate 17 is guaranteed, the focus collection plate 17 and the side face of the fixing frame 3 are arranged in a parallel relation, the accuracy of lens detection is guaranteed, the length scales are marked on the upper surface of the guide rail 2, and the detection result of the lens is conveniently read.

The working principle is as follows: the utility model discloses a support frame 1 supports mount 3, there is first bracing piece 5 mount 3's side through rotatory grafting, the other end of first bracing piece 5 articulates there is second bracing piece 6, the other end of second bracing piece 6 slides and pegs graft in mounting groove 7, the other end of second bracing piece 6 is connected with spring 8, make the articulated department of first bracing piece 5 and second bracing piece 6 to 3 centre of a circle departments elastic extrusion of mount, hold through elasticity and wait to detect the lens, the not enough emergence of contact skew when avoiding the less lens of ordinary holding frame centre gripping, the detection quality of detecting the lamp has been guaranteed, guide rail 2's upper surface is provided with slider 11, slider 11's last perpendicular surface is provided with focus acquisition board 17, guide rail 2's rear end has baffle 12 through the screw fixation, it can not drop to have guaranteed that slider 11's removal can not drop, slider 11's upper surface is provided with motor 16, output through motor 16 loops through first change gear 15 and second change gear 14 transmission gyro wheel 13 The slider can be finely adjusted by multi-layer speed reduction when moving on the roller track 10, so that the accuracy of focal length adjustment is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a detection mechanism is focused to macro camera, includes support frame (1) and mount (3), its characterized in that: the fixing frame (3) is fixed on the upper surface of the supporting frame (1) through screws, a first supporting rod (5) is inserted into one side of the fixing frame (3), a second supporting rod (6) is hinged to the other end of the first supporting rod (5), an installation groove (7) is formed in one side of the fixing frame (3), the other end of the second supporting rod (6) is inserted into the installation groove (7) in a sliding mode, and a spring (8) is embedded into the installation groove (7);

one end of the spring (8) is welded at one end of the second support rod (6) in the mounting groove (7), a fixing sleeve (4) is inserted into the fixing frame (3), a detection lamp (9) is inserted into the fixing sleeve (4), a guide rail (2) is fixed on one side of the support frame (1) through screws, roller rails (10) are fixed on two sides of the guide rail (2) through screws, a sliding block (11) is clamped on the upper surface of the guide rail (2), rollers (13) are inserted into two sides of the sliding block (11), and a motor (16) is fixed on the upper surface of the sliding block (11) through screws;

the output of motor (16) sets up to the tooth structure, the output meshing of motor (16) has first change gear (15), first change gear (15) meshing has second change gear (14), second change gear (14) meshing in the top of gyro wheel (13), the upper surface one end of guide rail (2) is passed through the screw fixation and is had baffle (12), the upper surface one end of slider (11) is passed through the screw fixation and is had focus collection board (17).

2. The mechanism of claim 1, wherein: the section of the hinged part of the first supporting rod (5) and the second supporting rod (6) is of an arc-shaped structure.

3. The mechanism of claim 1, wherein: first bracing piece (5), second bracing piece (6) and mounting groove (7) all set up to four groups, four groups first bracing piece (5), second bracing piece (6) and mounting groove (7) circular array distribute.

4. The mechanism of claim 1, wherein: the light emitted by the detection lamp (9) is set to be parallel light.

5. The mechanism of claim 1, wherein: the slider (11) sets up to the channel type structure, the notch of slider (11) sets up to down, the notch width of slider (11) sets up to the width that equals guide rail (2).

6. The mechanism of claim 1, wherein: the profile of the roller (13) is set to be in a tooth structure, the upper surface of the roller track (10) is set to be in the tooth structure, and the roller (13) is meshed with the upper surface of the roller track (10).

7. The mechanism of claim 1, wherein: the side surface of the sliding block (11) is provided with a groove, the first speed change gear (15) and the second speed change gear (14) are arranged in the groove of the sliding block (11), and the side surface of the second speed change gear (14) is flush with the side surface of the sliding block (11).

8. The mechanism of claim 1, wherein: and a reinforcing rib is arranged at the contact part of the focus acquisition plate (17) and the sliding block (11).

9. The mechanism of claim 1, wherein: the focus acquisition plate (17) and the side surface of the fixed frame (3) are arranged in parallel.

10. The mechanism of claim 1, wherein: the upper surface of the guide rail (2) is marked with length scales.