CN211206916U

CN211206916U - Camera adjusting mechanism with axially fixed diaphragm ring and focusing ring

Info

Publication number: CN211206916U
Application number: CN201922475841.9U
Authority: CN
Inventors: 李成; 王杰; 郭楠
Original assignee: Chengdu Yunying Fangtang Technology Co ltd
Current assignee: Chengdu Yunying Fangtang Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-07
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a light ring and focusing ring axial position fixed camera adjustment mechanism, including the front shroud, a housing, focus the ring, the internal thread ring, the external screw thread ring, the stand, the light ring, the light ring driving lever, the light ring connects the pole, the rear mirror group, the light ring carousel, light ring blade base and scale ring, the slip (being the mirror core) of stand is located inside the casing all the time in focusing process and the light ring accommodation process, and it is unchangeable at the axial position of casing to focus ring and light ring, even more renewed camera lens, the position of focusing ring and light ring is still unchangeable, the position that the photographer need not readjust with the burnt ware can make with burnt ware and camera lens match, it is more convenient for the photographer changes the camera lens, the shooting experience of photographer has improved greatly.

Description

Camera adjusting mechanism with axially fixed diaphragm ring and focusing ring

Technical Field

The utility model relates to a camera adjustment mechanism especially relates to a camera adjustment mechanism that aperture ring and focusing ring axial position are fixed.

Background

The camera lens is the most important component in the camera because its quality directly affects the quality of the captured image. The lens mainly comprises zooming and fixed focus, and a doubling mirror. The zoom lens is a lens that can be pushed or pulled. In addition, there is a fixed focus lens, which is that the focal length cannot be changed to only one focal length, or only one viewing angle.

The fixed focus lens is a lens with a fixed focal length, and has no focal section or only one visual field. The fixed focus lens has no zooming function.

When a camera lens is used for shooting, a photographer often uses a focus follower to assist in shooting to control the depth of field, but the traditional camera lens is used for focusing and adjusting an aperture, the axial positions of a focusing ring and an aperture ring on the camera lens can be changed, when the photographer needs to replace the lens according to shooting requirements, a gear of the focus follower cannot be meshed with a newly replaced lens after the lens is replaced and the camera lens is replaced last time, so that the photographer needs to readjust the position of the focus follower to be matched with the newly replaced lens, and the operation of the photographer for replacing the lens is complicated and troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera adjustment mechanism that aperture ring and focusing ring axial position were fixed to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a camera adjusting mechanism with an aperture ring and a focusing ring fixed in axial position comprises a front cover, a shell, a focusing ring, an internal thread ring, an external thread ring, a support frame, an aperture ring, an aperture deflector rod, an aperture connecting rod, a rear lens group, an aperture turntable, an aperture blade base and a scale ring, wherein the front cover is installed at the end part of the shell, the external thread ring, the internal thread ring and the focusing ring are sequentially arranged outside the shell from inside to outside, the focusing ring is fixedly connected with the internal thread ring, the internal thread ring is rotatably connected with the outer wall of the shell, the external thread ring is in threaded connection with the internal thread ring, the inner wall of the shell is in sliding connection with the support frame, the support frame is fixedly connected with the external thread ring, an anti-rotation structure is arranged on the support frame, the aperture ring and the scale ring are also installed outside the shell, the scale ring is arranged between the aperture ring and the focusing ring, an, the light ring is connected with the shell in a rotating mode, a light ring driving lever is fixedly connected to the bottom of the light ring, a light ring connecting rod is connected to the light ring driving lever in a sliding mode, a rear mirror group is clamped to the bottom of the inner side of the support frame and comprises a support frame and a rear mirror core, the rear mirror core is installed at the bottom of the inner cavity of the support frame, a light ring rotating disc and a light ring blade base are arranged inside the support frame, the light ring rotating disc is connected with the support frame in a rotating mode and fixedly connected with the light ring connecting rod, and a light ring blade base is arranged above the light ring rotating disc and fixedly connected.

The anti-rotation structure comprises a plurality of support frame anti-rotation holes and anti-rotation pins matched with the support frame anti-rotation holes, the support frame anti-rotation holes are formed in the outer wall of the support frame, the anti-rotation pins are installed in the anti-rotation holes of the support frame, and anti-rotation matching holes matched with the anti-rotation structure are further formed in the side wall of the shell.

The diaphragm ring is provided with a plurality of first diaphragm driving lever mounting holes, the top end of the diaphragm driving lever is provided with a plurality of second diaphragm driving lever mounting holes, and the first diaphragm driving lever mounting holes and the second diaphragm driving lever mounting holes are arranged in a one-to-one correspondence mode.

The light ring driving lever is characterized in that a clamping convex block is arranged at the bottom of the light ring driving lever, a clamping strip-shaped hole is formed in the top of the light ring connecting rod, and the clamping convex block is connected with the clamping strip-shaped hole in a sliding mode.

The light ring connects pole bottom to be provided with a plurality of first light ring carousel fixed orificess, be provided with a plurality of second light ring carousel fixed orificess on the light ring carousel, first light ring carousel fixed orificess and second light ring carousel fixed orificess one-to-one set up.

An arc-shaped hole is communicated with the supporting frame of the rear lens group and is matched with the aperture connecting rod.

And an aperture damping is arranged between the aperture ring and the scale ring.

The outer side of the shell is also provided with a P L bayonet.

The utility model has the advantages that:

the sliding of the support frame (namely the lens core) is always positioned in the shell in the focusing process and the aperture adjusting process, and the axial positions of the focusing ring and the aperture ring in the shell are unchanged, so that the positions of the focusing ring and the aperture ring are still unchanged even if a new lens is replaced, and a photographer can match the focus follower with a camera lens without readjusting the position of the focus follower, so that the photographer can replace the lens more conveniently, and the photographing experience of the photographer is greatly improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at B-B according to the present invention;

fig. 4 is an enlarged view of a portion C of fig. 1 according to the present invention;

fig. 5 is a schematic structural view of the housing of the present invention;

FIG. 6 is a schematic structural view of a focusing ring according to the present invention;

fig. 7 is a schematic structural view of the internal thread ring of the present invention;

fig. 8 is a schematic structural view of the external and internal threaded ring of the present invention;

FIG. 9 is a schematic structural view of a stand according to the present invention;

fig. 10 is a schematic structural view of an aperture ring according to the present invention;

FIG. 11 is a schematic structural view of the middle aperture shift lever of the present invention;

fig. 12 is a schematic structural view of a middle aperture connecting rod according to the present invention;

FIG. 13 is a schematic view of a rear lens group according to the present invention;

fig. 14 is a schematic structural view of a middle aperture turntable according to the present invention;

FIG. 15 is a view of the middle aperture blade base of the present invention;

fig. 16 is a schematic structural view of the middle scale ring of the present invention;

fig. 17 is a schematic structural view of the adjusting ring of the present invention.

In the figure, a front cover 1, a shell 2, a second front cover mounting hole 2.2, an anti-rotation matching hole 2.3, a focusing ring 3, a first internal thread ring fixing hole 3.1, an internal thread ring 4, a second internal thread ring fixing hole 4.2, an external thread ring 5, a first support frame fixing hole 5.1, a support frame 6, a second support frame fixing hole 6.2, a support frame anti-rotation hole 6.3, a diaphragm ring 7, a first diaphragm deflector rod mounting hole 7.1, a diaphragm deflector rod 8, a second diaphragm deflector rod mounting hole 8.1, a clamping lug 8.2, a diaphragm connecting rod 9, a first diaphragm turntable fixing hole 9.1, a clamping strip-shaped hole 9.2, a rear lens group 10, an arc-shaped hole 10.1, a diaphragm turntable 11, a second diaphragm turntable fixing hole 11.1, a diaphragm blade base 12, a scale ring 13, a damping diaphragm 14, a P L bayonet 15 and an adjusting ring 16.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

Referring to fig. 1-17, an embodiment of the present invention provides a camera adjusting mechanism with an aperture ring and a focus ring fixed in axial position, which includes a front cover 1, a housing 2, a focus ring 3, an internal thread ring 4, an external thread ring 5, a holder 6, an aperture ring 7, an aperture shift lever 8, an aperture connecting rod 9, a rear lens group 10, an aperture turntable 11, an aperture blade base 12 and a scale ring 13, the end part of the shell 2 is provided with a front cover 1, the front cover 1 is provided with a plurality of first front cover mounting holes, a plurality of second front cover mounting holes 2.2 are arranged on the shell 2, the first front cover mounting holes and the second front cover mounting holes 2.2 are arranged in a one-to-one correspondence manner, the first and second front cover mounting holes 2.2 are fixedly mounted by screws during assembly (refer to fig. 3 and 5), and the shade bucket for blocking and absorbing light during photographing is mounted outside the front cover 1.

The outer part of the shell 2 is sequentially provided with an external thread ring 5, an internal thread ring 4 and a focusing ring 3 from inside to outside.

The focusing ring 3 is fixedly connected with the internal thread ring 4, a plurality of first internal thread ring fixing holes 3.1 are formed in the focusing ring 3, a plurality of second internal thread ring fixing holes 4.2 are formed in the internal thread ring 4, the first internal thread ring fixing holes 3.1 and the second internal thread ring fixing holes 4.2 correspond to each other one by one, and the first internal thread ring fixing holes 3.1 and the second internal thread ring fixing holes 4.2 are inserted into the screws in the assembling process to be fixedly installed (refer to fig. 3, 6 and 7).

Internal thread ring 4 rotates with 2 outer walls of casing to be connected, has the clearance between casing 2 and the internal thread ring 4, and external thread ring 5 can be in the reciprocal slip in the clearance, 5 inner walls of external thread ring and 2 sliding connection of casing, 5 outer walls of external thread ring are provided with first screw thread, and 4 inner walls of internal thread ring are provided with the second screw thread, and first screw thread and second screw thread match the setting.

The inner wall of the shell 2 is connected with a support frame 6 in a sliding mode, the support frame 6 is fixedly connected with an external thread ring 5, a first support frame fixing hole 5.1 is formed in the external thread ring 5, a plurality of second support frame fixing holes 6.2 are formed in the support frame 6, the first support frame fixing holes 5.1 and the second support frame fixing holes 6.2 are arranged in a one-to-one correspondence mode, and in the assembling process, screws are inserted into the first support frame fixing holes 5.1 and the second support frame fixing holes 6.2 to be fixedly installed (refer to fig. 3, 8 and 9).

The outer wall of the support frame 6 is provided with a support frame rotation-proof hole 6.3, (refer to fig. 9) a rotation-proof pin is arranged in the support frame rotation-proof hole 6.3, and the side wall of the shell 2 is also provided with a rotation-proof matching hole 2.3 (refer to fig. 5) matched with the side wall.

When the focusing ring 3 is rotated to adjust the camera lens, the focusing ring 3 is rotated, the internal thread ring 4 rotates along with the rotation of the focusing ring, the external thread ring 5 slides along the central axis of the shell 2 under the arrangement of the first thread, the second thread, the support frame anti-rotation hole 6.3 and the anti-rotation pin, so as to drive the support frame 6 to slide (the support frame 6 cannot rotate and can only slide due to the arrangement of the anti-rotation pin), the lens core of the camera lens is arranged in the support frame 6, so that the axial extension of the lens core is realized, the lens focusing function is realized, and the sliding of the support frame 6 (namely the lens core) is always positioned in the shell 2 in the focusing process.

The utility model discloses a focusing mechanism, including casing 2, light ring 7 and scale ring 13, scale ring 13 sets up between light ring 7 and focusing ring 3, be provided with adjusting ring 16 between scale ring 13 and the internal thread ring 4, scale ring 13 and adjusting ring 16 fixed connection, be provided with a plurality of first scale ring mounting holes on adjusting ring 16, be provided with second scale ring mounting hole on scale ring 13, and then make scale ring 13 and adjusting ring 16's fixed mounting more convenient at the assembly process, the assembly degree of difficulty has been alleviateed.

The aperture ring 7 is rotatably connected with the shell 2, the bottom of the aperture ring 7 is fixedly connected with an aperture shift lever 8, the aperture shift lever 8 is slidably connected with an aperture connecting rod 9, the bottom of the aperture shift lever 8 is provided with a clamping convex block 8.2, the top of the aperture connecting rod 9 is provided with a clamping strip-shaped hole 9.2, the clamping convex block 8.2 is slidably connected with the clamping strip-shaped hole 9.2, the support frame 6 axially slides back and forth along the shell 2 in the process of adjusting the focusing ring 3, the rear lens group 10 can also slide along with the support frame 6, at the moment, the axial position of the aperture ring 7 is unchanged, the clamping convex block 8.2 slides in the clamping strip-shaped hole 9.2 in an adaptive manner, and further, the aperture ring 7 can still be adjusted in the focusing process by rotating the aperture ring 7, and the axial positions of the aperture ring 7 and the focusing ring 3 are unchanged.

A plurality of first aperture deflector rod mounting holes 7.1 are formed in the aperture ring 7, a plurality of second aperture deflector rod mounting holes 8.1 are formed in the top end of the aperture deflector rod 8, the first aperture deflector rod mounting holes 7.1 and the second aperture deflector rod mounting holes 8.1 are arranged in a one-to-one correspondence manner, and screws are inserted into the first aperture deflector rod mounting holes 7.1 and the second aperture deflector rod mounting holes 8.1 in the assembling process to be fixedly mounted (refer to fig. 3, 10 and 11).

A rear mirror group 10 (refer to fig. 3 and 13) is clamped at the bottom of the inner side of the support frame 6, the rear mirror group 10 comprises a support frame and a rear mirror core, the rear mirror core is mounted at the bottom of the inner cavity of the support frame, an aperture rotary table 11 and an aperture blade base 12 (refer to fig. 3, 14 and 15) are arranged in the support frame, the aperture rotary table 11 is rotatably connected with the support frame, a plurality of first aperture rotary table fixing holes 9.1 are arranged at the bottom end of an aperture connecting rod 9.1, a plurality of second aperture rotary table fixing holes 11.1 are arranged on the aperture rotary table 11, the first aperture rotary table fixing holes 9.1 and the second aperture rotary table fixing holes 11.1 are arranged in a one-to-one correspondence manner, in the assembling process, the first aperture rotary table fixing holes 9.1 and the second aperture rotary table fixing holes 11.1 are inserted through screws for fixed mounting (refer to fig. 3, 12 and 14), an arc hole 10.1 is arranged on the support frame of the rear, the arc hole 10.1 connects pole 9 with the light ring and matches the setting, rotates light ring 7 and drives light ring driving lever 8 and rotate when adjusting the light ring size, and then drives the light ring and connects pole 9 and light ring carousel 11 to rotate, and the light ring connects the junction that pole 9 and light ring carousel 11 to pass braced frame, is exactly owing to the arc hole 10.1 who sets up has guaranteed the realization of above-mentioned motion.

The diaphragm plate is characterized in that a diaphragm blade base 12 (refer to fig. 15) is arranged above the diaphragm turntable 11, the diaphragm blade base 12 is fixedly connected with a supporting frame, a through hole is formed in the center of the diaphragm blade base 12 in a penetrating mode, a plurality of strip-shaped holes (12-17) are formed in the radial direction of the through hole and used for being matched with the diaphragm blades, the diaphragm blades are installed between the diaphragm blade base 12 and the diaphragm turntable 11 and installed by adopting an assembling method well known by technical personnel in the field, and the diaphragm turntable 11 rotates to drive the blades to open and close, so that the size of the diaphragm is adjusted.

An aperture damper 14 is arranged between the aperture ring 7 and the scale ring 13.

The outer side of the shell 2 is also provided with a P L bayonet 15, the P L bayonet 15 is a movie lens switching bayonet and is used for replacing lenses, and the lenses are normally locked by clockwise rotation.

The adjusting process comprises the following steps:

a focusing process: the focusing ring 3 is rotated, the internal thread ring 4 rotates along with the rotation, the external thread ring 5 slides along the central axis of the shell 2, the support frame 6 slides (the clamping convex block 8.2 slides in the clamping strip-shaped hole 9.2 in an adaptive manner to ensure the aperture adjusting function), the axis of the lens core stretches, and the function of focusing the lens is realized.

The aperture adjusting process: the function of adjusting the lens aperture is realized by rotating the aperture ring 7, rotating the aperture deflector rod 8, rotating the aperture connecting rod 9 and the aperture turntable 11, and opening and closing the aperture blades.

The sliding of the support frame 6 (namely the lens core) is always positioned in the shell 2 in the focusing process and the diaphragm adjusting process, and the axial positions of the focusing ring 3 and the diaphragm ring 7 in the shell 2 are unchanged, so that the positions of the focusing ring 3 and the diaphragm ring 7 are still unchanged even a new lens is replaced, and a photographer can match the focus follower with a camera lens without readjusting the position of the focus follower, so that the lens replacement of the photographer is more convenient, and the shooting experience of the photographer is greatly improved.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A camera adjusting mechanism with an aperture ring and a focusing ring fixed in axial position is characterized by comprising a front cover (1), a shell (2), a focusing ring (3), an internal thread ring (4), an external thread ring (5), a support frame (6), an aperture ring (7), an aperture deflector rod (8), an aperture connecting rod (9), a rear lens group (10), an aperture turntable (11), an aperture blade base (12) and a scale ring (13), wherein the front cover (1) is installed at the end part of the shell (2), the external thread ring (5), the internal thread ring (4) and the focusing ring (3) are sequentially arranged outside the shell (2) from inside to outside, the focusing ring (3) is fixedly connected with the internal thread ring (4), the internal thread ring (4) is rotatably connected with the outer wall of the shell (2), the external thread ring (5) is in threaded connection with the internal thread ring (4), the support frame (6) is in sliding connection with the inner wall of the shell (2, a support frame (6) is fixedly connected with an external thread ring (5), an anti-rotation structure is arranged on the support frame (6), a diaphragm ring (7) and a scale ring (13) are further arranged on the outer side of the shell (2), the scale ring (13) is arranged between the diaphragm ring (7) and the focusing ring (3), an adjusting ring (16) is arranged between the scale ring (13) and the internal thread ring (4), the scale ring (13) is fixedly connected with the adjusting ring (16), the diaphragm ring (7) is rotatably connected with the shell (2), a diaphragm deflector rod (8) is fixedly connected with the bottom of the diaphragm ring (7), a diaphragm connecting rod (9) is slidably connected with the diaphragm deflector rod (8), a rear lens group (10) is clamped at the bottom of the inner side of the support frame (6), the rear lens group (10) comprises a support frame and a rear lens core, the rear lens core is arranged at the bottom of the inner cavity of the support frame, a diaphragm turntable (11) and a diaphragm blade base (12) are arranged in, the aperture rotary table (11) is rotatably connected with the supporting frame and fixedly connected with the aperture extension rod (9), an aperture blade base (12) is arranged above the aperture rotary table (11), and the aperture blade base (12) is fixedly connected with the supporting frame.

2. The adjusting mechanism for the camera with the fixed axial position of the aperture ring and the focusing ring as claimed in claim 1, wherein the anti-rotation structure comprises a plurality of support anti-rotation holes (6.3) and anti-rotation pins matched with the support anti-rotation holes (6.3), the support anti-rotation holes (6.3) are all arranged on the outer wall of the support (6), the anti-rotation pins are installed in the support anti-rotation holes (6.3), and the side wall of the shell (2) is further provided with anti-rotation matching holes (2.3) matched with the anti-rotation structure.

3. The adjusting mechanism of a camera with fixed axial positions of an aperture ring and a focusing ring as claimed in claim 1, wherein the aperture ring (7) is provided with a plurality of first aperture deflector mounting holes (7.1), the top end of the aperture deflector (8) is provided with a plurality of second aperture deflector mounting holes (8.1), and the first aperture deflector mounting holes (7.1) and the second aperture deflector mounting holes (8.1) are arranged in a one-to-one correspondence.

4. The camera adjusting mechanism for fixing the axial positions of the aperture ring and the focus ring as claimed in claim 1, wherein the aperture deflector rod (8) is provided with a clamping protrusion (8.2) at the bottom, the aperture extension rod (9) is provided with a clamping bar-shaped hole (9.2) at the top, and the clamping protrusion (8.2) is slidably connected with the clamping bar-shaped hole (9.2).

5. The adjusting mechanism for a camera with fixed axial positions of an aperture ring and a focus ring as claimed in claim 1, wherein the bottom end of the aperture connecting rod (9.1) is provided with a plurality of first aperture plate fixing holes (9.1), the aperture plate (11) is provided with a plurality of second aperture plate fixing holes (11.1), and the first aperture plate fixing holes (9.1) and the second aperture plate fixing holes (11.1) are arranged in a one-to-one correspondence.

6. The adjusting mechanism for cameras with fixed axial positions of aperture ring and focus ring as claimed in claim 1, wherein the supporting frame of the rear lens group (10) has an arc hole (10.1), the arc hole (10.1) is matched with the aperture extension rod (9).

7. A camera adjustment mechanism with an axially fixed aperture ring and focus ring according to claim 1, characterized in that an aperture damper (14) is arranged between the aperture ring (7) and the scale ring (13).

8. The adjusting mechanism for camera with fixed axial position of aperture ring and focusing ring as claimed in claim 1, characterized in that the outside of the housing (2) is further provided with a P L bayonet (15).