CN213457618U

CN213457618U - M42 lens to M72 lens adapter part

Info

Publication number: CN213457618U
Application number: CN202022902760.5U
Authority: CN
Inventors: 刘旭伟; 郭玉茹; 龚庆玲
Original assignee: Shenzhen Juli Optical Machinery Technology Co ltd
Current assignee: Shenzhen Juli Optical Machinery Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-06-15
Anticipated expiration: 2030-12-04

Abstract

The utility model belongs to the technical field of optical connection part, and M42 camera lens is to M72 camera lens switching part is disclosed, including the installation piece, the fixed intercommunication in left side of installation piece has the connecting cylinder, the fixed intercommunication in left side of connecting cylinder has the excircle cover, the activity inner tube has been cup jointed in the inside activity of connecting cylinder, the left side of activity inner tube is passed connecting cylinder and excircle cover in proper order and is extended to the outside of excircle cover, and the top groove has been seted up to the inside on connecting cylinder top, the top fixed mounting of activity inner tube has the motion piece that is located top inslot portion. The utility model discloses a set up draw-in groove and card axle, because the draw-in groove adopts the distributed design, go into to the draw-in groove of different positions when the card axle card, the activity inner tube also can change thereupon at the left length of excircle cover this moment, has made things convenient for operating personnel to adjust the whole length of this part, need not to use in addition the extension part, and the use of giving operating personnel has brought the facility, has consequently increased the practicality of this switching part.

Description

M42 lens to M72 lens adapter part

Technical Field

The utility model belongs to the technical field of optical connection part, specifically M42 camera lens is to M72 camera lens adapter part.

Background

The camera lens is the most important part in the camera because its quality directly affects the quality of the shot image, and the lens is the most important standard for dividing the camera into three grades, generally speaking, the camera can be divided into a professional camera, a quasi-professional camera and a common camera according to the lens, no matter the traditional film camera or the digital camera can be suitable for the division, and the lens can be divided into two categories of zooming and fixed focusing.

At present, when an operator converts and uses an M42 lens and an M72 lens, the corresponding adapter component is often needed, while in the actual use process of the existing lens adapter component, the flange distance of the lens needs to be matched with the flange distance of a camera, if the flange distance of the lens exceeds the flange distance of the camera, an extension component needs to be added, and if the flange distance of the lens exceeds the flange distance of the camera, the camera cannot be focused, however, the adapter component on the market is often fixed in size, and the extension component needs to be additionally added, which brings inconvenience to the use of the operator, so the improvement of the adapter component is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, the utility model provides a M42 camera lens is to M72 camera lens switching part, has the advantage of making things convenient for the whole length of adjustment part.

In order to achieve the above object, the utility model provides a following technical scheme: the component for transferring the M42 lens to the M72 lens comprises a mounting block, wherein the left side of the mounting block is fixedly communicated with a connecting cylinder, the left side of the connecting cylinder is fixedly communicated with an outer circular sleeve, the inner part of the connecting cylinder is movably sleeved with a movable inner cylinder, the left side of the movable inner cylinder sequentially penetrates through the connecting cylinder and the outer circular sleeve and extends to the outside of the outer circular sleeve, a top groove is arranged inside the top end of the connecting cylinder, a moving block positioned inside the top groove is fixedly arranged at the top of the movable inner cylinder, the top of the motion block is movably connected with an arc block, the middle part of the top end of the arc block is fixedly provided with a pull block, the top of the connecting cylinder is provided with clamping grooves positioned at the two sides of the top groove, the bottom of the arc block is fixedly provided with side blocks positioned at the two sides of the motion block, the lower surface of the side block is movably connected with the outer surface of the connecting cylinder, and a clamping shaft located inside the clamping groove is fixedly installed at the bottom of the side block.

As a preferred technical scheme of the utility model, the left end fixed intercommunication of activity inner tube has an installation section of thick bamboo, the inside of an installation section of thick bamboo is equipped with the internal thread, because the internal screw thread design to make M42 camera lens and M72 camera lens can cooperate the installation through between the screw thread that self was established and the internal thread.

As a preferred technical scheme of the utility model, the movable block has been cup jointed in the inside activity of motion piece, the middle part fixed mounting on movable block top has the montant, the top of montant runs through the inside that the motion piece extended to motion piece top, the top of montant and the bottom fixed connection of arc piece when operating personnel pulling draws the piece will make the arc piece drive montant and movable block motion, and rigid spring will be stretched this moment.

As a preferred technical scheme of the utility model, the kerve has been seted up to the inside of movable block bottom, the inside fixedly connected with stiff spring of kerve, the bottom of stiff spring and the bottom fixed connection of moving block inner chamber because stiff spring's design, the card that will make the card axle can be inseparable in the inside of draw-in groove.

As an optimal technical scheme of the utility model, the quantity of side piece is two, two the lower surface of side piece is all smooth, two the surface of side piece all presents for the arc to make it can be laminated with the surface of connecting cylinder completely, ensured the stability of side piece motion.

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

1. the utility model discloses a set up draw-in groove and card axle, because the draw-in groove adopts the distributed design, go into to the draw-in groove of different positions when the card axle card, the activity inner tube also can change thereupon at the left length of excircle cover this moment, has made things convenient for operating personnel to adjust the whole length of this part, need not to use in addition the extension part, and the use of giving operating personnel has brought the facility, has consequently increased the practicality of this switching part.

2. The utility model discloses a set up internal thread and stiff spring, because the internal screw thread design, will make things convenient for operating personnel to install or dismantle M42 camera lens and M72 camera lens, and because stiff spring's design, will make the card that the card axle can be stable in the inside of draw-in groove, avoid it to take place the structure not hard up, consequently further increase this switching part's practicality.

Drawings

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

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

fig. 3 is a schematic front view of the motion block of the present invention;

fig. 4 is a schematic view of the internal structure of the motion block of the present invention.

In the figure: 1. mounting blocks; 2. a connecting cylinder; 3. an outer circular sleeve; 4. a movable inner cylinder; 5. a top groove; 6. a motion block; 7. an arc block; 8. pulling the block; 9. a side block; 10. a card slot; 11. clamping a shaft; 12. mounting the cylinder; 13. an internal thread; 14. a movable block; 15. a vertical rod; 16. a bottom groove; 17. a stiff spring.

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.

As shown in fig. 1 to 4, the utility model provides a component for transferring an M42 lens to an M72 lens, which comprises an installation block 1, wherein the left side of the installation block 1 is fixedly communicated with a connecting cylinder 2, the left side of the connecting cylinder 2 is fixedly communicated with an outer circular sleeve 3, a movable inner cylinder 4 is movably sleeved in the connecting cylinder 2, the left side of the movable inner cylinder 4 sequentially passes through the connecting cylinder 2 and the outer circular sleeve 3 and extends to the outside of the outer circular sleeve 3, a top groove 5 is arranged in the top end of the connecting cylinder 2, a motion block 6 arranged in the top groove 5 is fixedly arranged at the top of the movable inner cylinder 4, the top of the motion block 6 is movably connected with an arc block 7, a pull block 8 is fixedly arranged in the middle of the top end of the arc block 7, a clamping groove 10 arranged at two sides of the top groove 5 is arranged at the top of the connecting cylinder 2, side blocks 9 arranged at two sides of the motion block 6 are fixedly arranged at the bottom of, the bottom of the side block 9 is fixedly provided with a clamping shaft 11 positioned in the clamping groove 10.

Wherein, the left end of activity inner tube 4 is fixed to be communicated with installation section of thick bamboo 12, and the inside of installation section of thick bamboo 12 is equipped with internal thread 13, because the design of internal thread 13 to make M42 camera lens and M72 camera lens can carry out the cooperation installation through between the screw thread that self established and the internal thread 13.

Wherein, the inside activity of motion piece 6 has cup jointed movable block 14, and the middle part fixed mounting on movable block 14 top has montant 15, and the top of montant 15 runs through motion piece 6 and extends to the inside on motion piece 6 top, and the top of montant 15 and the bottom fixed connection of arc piece 7 when operating personnel pulling draws piece 8, will make arc piece 7 drive montant 15 and movable block 14 motion, and rigid spring 17 will be stretched this moment.

Wherein, the bottom groove 16 has been seted up to the inside of movable block 14 bottom, the inside fixedly connected with stiff spring 17 of bottom groove 16, the bottom of stiff spring 17 and the bottom fixed connection of motion block 6 inner chamber, because the design of stiff spring 17 will make the card that card axle 11 can be inseparable block in the inside of draw-in groove 10.

Wherein, the quantity of side piece 9 is two, and the lower surface of two side pieces 9 is all smooth, and the surface of two side pieces 9 all presents for the arc to make it can laminate with the surface of connecting cylinder 2 completely, ensured the stability of side piece 9 motion.

The utility model discloses a theory of operation and use flow: the operator can mount and fix the M42 lens or the M72 lens by matching the screw thread with the internal screw thread 13, when an operator needs to adjust the overall length of the switching component, the operator can pull the pull block 8 at the moment to enable the arc block 7 to drive the two side blocks 9 to move upwards, at the same time, the latch shaft 11 will be disengaged from the interior of the latch slot 10, and the stiff spring 17 will now be in a stretched state, then the operator can move the pulling block 8, so that the moving block 6 drives the movable inner cylinder 4 to move horizontally, when the length of the movable inner cylinder 4 on the left side of the outer circular sleeve 3 meets the requirement of an operator, the operator can loosen the pull block 8 at the moment, meanwhile, due to the elastic force recovery action of the rigid spring 17, the side block 9 drives the clamping shaft 11 to be clamped into the corresponding clamping groove 10, and then the position of the movable inner cylinder 4 is fixed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

An M42 lens to M72 lens adapter part, including installation piece (1), its characterized in that: the left side of the installation block (1) is fixedly communicated with a connecting cylinder (2), the left side of the connecting cylinder (2) is fixedly communicated with an outer circular sleeve (3), the inner part of the connecting cylinder (2) is movably sleeved with a movable inner cylinder (4), the left side of the movable inner cylinder (4) sequentially penetrates through the connecting cylinder (2) and the outer circular sleeve (3) and extends to the outer part of the outer circular sleeve (3), a top groove (5) is formed in the top end of the connecting cylinder (2), a movement block (6) positioned in the top groove (5) is fixedly installed at the top of the movable inner cylinder (4), an arc block (7) is movably connected to the top of the movement block (6), a pull block (8) is fixedly installed in the middle of the top end of the arc block (7), clamping grooves (10) positioned on two sides of the top groove (5) are formed in the top of the connecting cylinder (2), side blocks (9) positioned on two sides of the movement block (6) are fixedly installed at the bottom of the arc, the outer surface swing joint of side piece (9) lower surface and connecting cylinder (2), the bottom fixed mounting of side piece (9) has card axle (11) that are located draw-in groove (10) inside.
2. The M42 lens-to-M72 lens adapter as recited in claim 1, wherein: the left end of the movable inner cylinder (4) is fixedly communicated with an installation cylinder (12), and an internal thread (13) is arranged in the installation cylinder (12).
3. The M42 lens-to-M72 lens adapter as recited in claim 1, wherein: the inside activity of motion piece (6) has cup jointed movable block (14), the middle part fixed mounting on movable block (14) top has montant (15), the inside on motion piece (6) top is run through and extends to motion piece (6) top on the top of montant (15), the top of montant (15) and the bottom fixed connection of arc piece (7).
4. The M42 lens-to-M72 lens adapter as claimed in claim 3, wherein: a bottom groove (16) is formed in the bottom end of the movable block (14), a rigid spring (17) is fixedly connected to the inside of the bottom groove (16), and the bottom end of the rigid spring (17) is fixedly connected with the bottom of the inner cavity of the movable block (6).
5. The M42 lens-to-M72 lens adapter as recited in claim 1, wherein: the number of the side blocks (9) is two, the lower surfaces of the two side blocks (9) are smooth, and the outer surfaces of the two side blocks (9) are arc-shaped.