CN218848532U

CN218848532U - Magnetic type adjustable ND mirror

Info

Publication number: CN218848532U
Application number: CN202221918191.6U
Authority: CN
Inventors: 严文栋
Original assignee: Shaoxing Shangyu Greenl Digital Photography Equipment Co ltd
Current assignee: Shaoxing Shangyu Greenl Digital Photography Equipment Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-04-11
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to the field of photographic equipment, and discloses a magnetic adjustable ND mirror, which comprises an upper adjusting module (1), a lower adjusting module (2) and a switching ring (3), wherein the upper adjusting module (1) is arranged on the lower adjusting module (2), and the lower adjusting module (2) is arranged on the switching ring (3); the lower adjusting module (2) comprises a lower adjusting ring (21), the lower adjusting ring (21) is connected with the adapter ring (3) in a magnetic attraction mode, a clamping block (211) is arranged on the lower end face of the lower adjusting ring (21), a limiting groove (31) is formed in the adapter ring (3), and the lower adjusting ring (21) is clamped into the limiting groove (31) of the adapter ring (3) through the clamping block (211). Be equipped with non return structure between lower adjusting ring in this ND mirror and the adapter ring to make lower adjusting ring and adapter ring can not take place to rotate, avoid lower adjusting ring to rotate and influence the regulation of adjusting module.

Description

Magnetic type adjustable ND mirror

Technical Field

The utility model relates to a photography and video equipment ware field especially relates to an adjustable ND mirror of formula is inhaled to magnetism.

Background

Traditional adjustable DN mirror adopts screw thread mode cooperation camera to dismantle and uses, if when wanting to use adjustable ND mirror among the shooting process, other filter screw threads are twisted out, and adjustable ND mirror is twisted on again, when very useless.

In order to replace an adjustable ND mirror easily, there are currently some adjustable ND mirrors using magnetic attraction, for example, a magnetic attraction filter of a camera with application number 201921784145.X and a magnetic attraction interchangeable ND filter with application number 202021960654.6, wherein in one of the magnetic attraction interchangeable ND filters, the ND value can be adjusted by rotating an iron metal frame, because the rotation angle of the iron metal frame is 360 °, the difficulty of adjustment is increased, and the required ND value is easily missed during adjustment. Simultaneously rotatory circle also can 360 rotations with the base, when people adjusted the iron metal picture frame, rotates the ND value that rotatory circle will influence after adjusting to influence the effect of shooing of camera.

SUMMERY OF THE UTILITY MODEL

The utility model discloses shortcoming to among the prior art provides an adjustable ND mirror of formula is inhaled to magnetism.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

a magnetic type adjustable ND mirror comprises an upper adjusting module, a lower adjusting module and a switching ring, wherein the upper adjusting module is arranged on the lower adjusting module, and the lower adjusting module is arranged on the switching ring; the lower adjusting module comprises a lower adjusting ring, the lower adjusting ring is connected with the adapter ring in a magnetic attraction mode, a clamping block is arranged on the lower end face of the lower adjusting ring, a limiting groove is formed in the adapter ring, and the lower adjusting ring is clamped into the limiting groove of the adapter ring through the clamping block. Be equipped with non return structure between lower adjusting ring in this ND mirror and the adapter ring to make lower adjusting ring and adapter ring can not take place to rotate, avoid lower adjusting ring to rotate and influence the regulation of adjusting module.

Preferably, at least two clamping blocks are uniformly distributed on the lower adjusting ring, and the adapter ring is uniformly provided with limiting grooves with the number equal to that of the clamping blocks. Through a plurality of block structures, circumferential rotation can not take place for adjusting ring and adapter ring down, and when adjusting ring under the wrench movement, adjusting ring atress is even down, and fixture block and spacing groove block stability are good.

Preferably, the lower adjusting module comprises a magnet, a mounting groove is formed in the adapter ring, an iron ring is mounted at the bottom of the mounting groove, and the lower end of the lower adjusting ring extends into the mounting groove and is attracted to the iron ring of the adapter ring through the magnet. The lower adjusting module of formula is inhaled to magnetism, makes things convenient for people quick will descend adjusting module to dismantle from the adapter ring, and the assembly time of the adjustable ND mirror of greatly reduced can not miss beautiful record.

Preferably, the lower adjusting module comprises a lower pressing ring and a lower lens, the lower adjusting ring is provided with a lower mounting groove, and the lower pressing ring is in threaded connection with the lower adjusting ring and presses the lower lens and the magnet in the mounting groove. The lower lens cannot be easily separated from the lower adjusting ring, and the lower lens is good in assembly stability.

Preferably, the magnet is in a ring shape, the lower lens is arranged in the ring of the magnet, the bottom of the lower mounting groove is provided with an annular groove, and the magnet is mounted on the annular groove in a limiting mode. The magnet is installed in a limiting mode through the annular groove, and the magnet is good in installation stability.

Preferably, the upper adjusting module comprises an upper adjusting ring, a first upper mounting groove is formed in the lower end of the upper adjusting ring, an upper buckling groove which is outwards sunken and annular in shape is formed in the inner side wall of the first upper mounting groove, a lower buckling groove which is inwards sunken and annular in shape is formed in the outer side wall of the upper end of the lower adjusting ring, and the upper buckling groove of the upper adjusting ring is connected with the lower buckling groove of the lower adjusting ring in a buckling mode. The upper adjusting ring and the lower adjusting ring are buckled together and cannot be easily separated from each other, and meanwhile, the upper adjusting ring can rotate on the lower adjusting ring.

Preferably, the bottom surface of the first upper mounting groove is provided with an arc-shaped adjusting groove, the upper end surface of the lower adjusting ring is provided with an upward convex block, and the upper adjusting ring is in limited mounting with the convex block of the lower adjusting ring through the adjusting groove. The cooperation of adjustment tank and lug makes the spacing rotation of upper control circle on the regulation circle under, and the upper control circle can not 360 rotations on the regulation circle under, and convenience of customers can be in the quick ND value that finds the needs regulation of the accommodation range of setting for, improves the regulation efficiency of ND value.

Preferably, the upper adjusting module comprises an upper pressing ring and an upper lens, the upper end of the upper adjusting ring is provided with a second upper mounting groove, and the upper pressing ring is in threaded connection with the upper adjusting ring and presses the upper lens on the second upper mounting groove. The upper lens cannot be easily separated from the upper adjusting ring, and the assembly stability of the upper lens is good.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect:

be equipped with non return structure between lower adjusting ring in this ND mirror and the adapter ring to make lower adjusting ring and adapter ring can not take place to rotate, avoid lower adjusting ring to rotate and influence the regulation of adjusting module.

The cooperation of adjustment tank and lug makes the spacing rotation of upper control circle on the regulation circle under, and the upper control circle can not 360 rotations on the regulation circle under, and convenience of customers can be in the quick ND value that finds the needs regulation of the accommodation range of setting for, improves the regulation efficiency of ND value.

Drawings

Fig. 1 is a schematic view of the assembled three-dimensional structure of the present invention.

Fig. 2 is a schematic sectional structure diagram of the present invention.

Fig. 3 is a schematic view of the structure of the joint ring of fig. 1.

Fig. 4 is a schematic perspective view of the upper end surface of the lower adjustment ring in fig. 1.

Fig. 5 is a perspective view of the lower end surface of the lower adjustment ring of fig. 1.

Fig. 6 is a schematic sectional view of the lower adjustment ring of fig. 1.

Fig. 7 is a schematic perspective view of the lower end surface of the upper adjusting ring in fig. 1.

Fig. 8 is a schematic sectional structure view of the upper adjustment ring in fig. 1.

The names of the parts indicated by the numerical references in the above figures are as follows:

1-upper adjusting module, 11-upper adjusting ring, 12-upper pressing ring, 13-upper lens, 111-first upper mounting groove, 112-upper fastening groove, 113-adjusting groove, 114-second upper mounting groove

2-lower adjusting module, 21-lower adjusting ring, 22-magnet, 23-lower pressing ring, 24-lower lens, 211-clamping block, 212-lower mounting groove, 213-annular groove, 214-lower fastening groove, 215-convex block

3-adapter ring, 31-limiting groove and 32-mounting groove

4-iron ring

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings 1-8 and examples.

Example 1

The utility model provides an adjustable ND mirror of formula is inhaled to magnetism, includes adjusting module 1, adjusting module 2 and adapter ring 3 down, goes up adjusting module 1 and installs under on adjusting module 2, goes up adjusting module 1 and forms a whole with adjusting module 2 is assembled down, adjusting module promptly. Adapter ring 3 is used for installing on the camera, is equipped with the external screw thread on adapter ring 3's the lateral wall, and adapter ring 3 passes through the threaded connection mode and installs on the camera. The lower adjusting module 2 is mounted on the adapter ring 3, i.e. the adjusting module is mounted on the adapter ring 3. The lower adjusting module 2 comprises a lower adjusting ring 21, the lower adjusting ring 21 is connected with the adapter ring 3 in a magnetic attraction mode, the adjusting module on the adapter ring 3 can be conveniently replaced, the assembling time of the adjustable ND mirror is shortened, and beautiful records cannot be missed. The lower terminal surface of lower adjusting ring 21 is equipped with fixture block 211, and fixture block 211 integrated into one piece is equipped with spacing groove 31 on adjusting ring 21 down, and lower adjusting ring 21 passes through fixture block 211 and blocks into spacing groove 31 of switching ring 3 to make adjusting ring 21 and switching ring 3 can not take place to rotate down, avoid adjusting ring 21 to rotate and influence the regulation of adjusting module 2 down. The total thickness of magnetism formula adjustable ND mirror of area lock of inhaling falls to 6.5mm, than ordinary area lock ND mirror 11 mm's thickness, reduces by a wide margin, and the person of facilitating the use carries.

The lower adjusting ring 21 is uniformly provided with at least two clamping blocks 211, the number of the clamping blocks 211 is 3, the adapter ring 3 is uniformly provided with limiting grooves 31, the number of the limiting grooves 31 is equal to the number of the clamping blocks 211, and the number of the limiting grooves 31 is also 3.

Lower adjusting module 2 includes magnet 22, is equipped with mounting groove 32 on the adapter ring 3, and iron ring 4 is installed to the bottom of mounting groove 32, and iron ring 4 passes through glue to be fixed on the bottom surface of mounting groove 32, and the lower tip of lower adjusting ring 21 stretches into in mounting groove 32 and through the actuation of magnet 22 on the iron ring 4 of adapter ring 3.

Lower adjusting module 2 includes clamping ring 23 and lower lens 24 down, is equipped with down mounting groove 212 on the lower adjusting ring 21, and lower clamping ring 23 and lower adjusting ring 21 threaded connection and with lens 24 and magnet 22 pressure equipment down in mounting groove 32, the port department of lower mounting groove 212 is equipped with the internal thread, and the lateral wall of lower clamping ring 23 is equipped with the external screw thread, and lower clamping ring 23 passes through threaded connection mode and installs in mounting groove 212 down.

Go up adjusting module 1 and include upper adjusting ring 11, the outer surface of upper adjusting ring 11 is the precious stone decorative pattern, increases the frictional force between hand and the upper adjusting ring 11, increases the pleasing to the eye of whole ND mirror simultaneously, has improved the feeling that ND adjusted. The lower end of the upper adjusting ring 11 is provided with a first upper mounting groove 111, the inner side wall of the first upper mounting groove 111 is provided with an upper buckling groove 112 which is outwards sunken and annular, the outer side wall of the upper end of the lower adjusting ring 21 is provided with a lower buckling groove 214 which is inwards sunken and annular, the upper buckling groove 112 of the upper adjusting ring 11 is buckled and connected with the lower buckling groove 214 of the lower adjusting ring 21, the upper adjusting ring 11 and the lower adjusting ring 21 cannot be easily separated from each other after being buckled and connected, and the upper adjusting ring 11 can rotate on the lower adjusting ring 21.

Go up adjusting module 1 and include clamping ring 12 and last lens 13, it is equipped with mounting groove 114 on the second to go up adjusting ring 11 upper end, go up clamping ring 12 and last adjusting ring 11 threaded connection and will go up lens 13 pressure equipment on mounting groove 114 on the second, mounting groove 114 is established in the first top of going up mounting groove 111 on the second, the port department of mounting groove 114 is equipped with the internal thread on the second, be equipped with the external screw thread on the lateral wall of going up clamping ring 12, it installs in mounting groove 114 on the second through the threaded connection mode to go up clamping ring 12.

Example 2

The embodiment 2 has substantially the same characteristics as the embodiment 1, except that the magnet 22 is in the shape of a ring, the lower lens 24 is arranged in the ring of the magnet 22, the bottom of the lower mounting groove 212 is provided with a ring-shaped groove 213, the magnet 22 is limited and mounted on the ring-shaped groove 213, and the magnet 22 is fixed on the ring-shaped groove 213 through glue.

Example 3

Embodiment 3 has substantially the same features as embodiment 1 or 2, except that the bottom surface of the first upper mounting groove 111 is provided with an adjusting groove 113 having an arc shape, the upper end surface of the lower adjusting ring 21 is provided with a projection 215 protruding upward, the projection 215 is integrated with the lower adjusting ring 21, and the upper adjusting ring 11 is installed in a limited manner through the adjusting groove 113 and the projection 215 of the lower adjusting ring 21, that is, the rotation range of the upper adjusting ring 11 is limited to the arc length of the adjusting groove 113. The cooperation of adjusting slot 113 and lug 215 makes the spacing rotation of upper adjusting ring 11 on lower adjusting ring 21, and upper adjusting ring 11 can not 360 rotations on lower adjusting ring 21, and the convenience of customers can be in the quick ND value that needs the regulation of finding in the regulation scope of settlement, improves the regulation efficiency of ND value, can adjust ND value (ND 2 ~ ND5, ND6 ~ ND 9) wantonly.

Claims

1. A magnetic type adjustable ND mirror comprises an upper adjusting module (1), a lower adjusting module (2) and a switching ring (3), wherein the upper adjusting module (1) is installed on the lower adjusting module (2), and the lower adjusting module (2) is installed on the switching ring (3); the method is characterized in that: the lower adjusting module (2) comprises a lower adjusting ring (21), the lower adjusting ring (21) is connected with the adapter ring (3) in a magnetic attraction mode, a clamping block (211) is arranged on the lower end face of the lower adjusting ring (21), a limiting groove (31) is formed in the adapter ring (3), and the lower adjusting ring (21) is clamped into the limiting groove (31) of the adapter ring (3) through the clamping block (211).

2. The magnetically-attractable adjustable ND mirror of claim 1, wherein: at least two clamping blocks (211) are uniformly distributed on the lower adjusting ring (21), and the adapter ring (3) is uniformly provided with limiting grooves (31) the number of which is equal to that of the clamping blocks (211).

3. The magnetically-attractable adjustable ND mirror of claim 1, wherein: lower adjusting module (2) includes magnet (22), is equipped with mounting groove (32) on adapter ring (3), and hoop (4) are installed to the bottom of mounting groove (32), and the lower tip of lower adjusting ring (21) stretches into in mounting groove (32) and through magnet (22) actuation on hoop (4) of adapter ring (3).

4. The magnetically-attractable adjustable ND mirror of claim 3, wherein: the lower adjusting module (2) comprises a lower pressing ring (23) and a lower lens (24), a lower installing groove (212) is formed in the lower adjusting ring (21), the lower pressing ring (23) is in threaded connection with the lower adjusting ring (21), and the lower lens (24) and the magnet (22) are pressed in the installing groove (32).

5. The magnetically-attractable adjustable ND mirror of claim 4, wherein: the magnet (22) is annular, the lower lens (24) is arranged in the ring of the magnet (22), the bottom of the lower mounting groove (212) is provided with an annular groove (213), and the magnet (22) is mounted on the annular groove (213) in a limiting manner.

6. A magnetically-attractable adjustable ND mirror as claimed in any one of claims 1-5, wherein: go up adjusting module (1) and include adjusting ring (11), it is equipped with first last mounting groove (111) to go up adjusting ring (11) lower tip, be equipped with outside sunken and the cyclic annular last catching groove (112) of journey on the inside wall of first last mounting groove (111), be equipped with inside sunken and the cyclic annular lower catching groove (214) of journey on lower adjusting ring (21) upper end lateral wall, go up last catching groove (112) of adjusting ring (11) and lower catching groove (214) spiral-lock of lower adjusting ring (21) and be connected.

7. The magnetically-attractable adjustable ND mirror of claim 6, wherein: the bottom surface of the first upper mounting groove (111) is provided with an arc-shaped adjusting groove (113), the upper end surface of the lower adjusting ring (21) is provided with a convex block (215) which protrudes upwards, and the upper adjusting ring (11) is in limited installation with the convex block (215) of the lower adjusting ring (21) through the adjusting groove (113).

8. The magnetically-attractable adjustable ND mirror of claim 6, wherein: go up adjusting module (1) and include clamping ring (12) and last lens (13), go up adjusting ring (11) upper end and be equipped with mounting groove (114) on the second, go up clamping ring (12) and last adjusting ring (11) threaded connection and will go up lens (13) pressure equipment on mounting groove (114) on the second.