CN206497250U

CN206497250U - Lens focal distance regulating structure

Info

Publication number: CN206497250U
Application number: CN201720061164.4U
Authority: CN
Inventors: 张高华
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-19
Filing date: 2017-01-19
Publication date: 2017-09-15
Anticipated expiration: 2027-01-19

Abstract

A kind of lens focal distance regulating structure, at least including pedestal, adjustment seat and camera lens；There is the first endoporus, the first inner port edge is extended with bulge loop, and the more several projections of bulge loop periphery extension, foregoing pedestal is provided with sliding bar respectively at symmetrical corner, and sliding bar end can lock the screw hole of screw provided with one inside the pedestal；There is the second endoporus, adjustment seat bottom surface is provided with multiple grooves, and each groove has inclined-plane, and adjustment seat is provided with limiting section in symmetrical corner, and camera lens screw lock is in the second endoporus inside the adjustment seat；When adjustment cover for seat is located at pedestal, sliding bar is inserted in spring and pad after passing through the chute of limiting section, and with screw locking, meanwhile, pedestal projection is inserted in the groove of adjustment seat respectively, and projection has a movement spacing in groove, make projection shift reciprocately in groove using adjustment seat is rotated, and along the inclined-plane rise and fall of groove, reach that rotation adjustment seat changes spacing with pedestal, drive camera lens to produce the fine setting of distance of stretch out and draw back.

Description

Lens focal distance regulating structure

Technical field

The utility model particularly relates to a kind of adjustable camera lens distance, and structure on a kind of lens focal distance regulating structure Simply, cost is low, operate easily lens focal distance regulating structure.

Background technology

Conventional lenses can only typically be focused by screw thread, if wanting zoom often to need complex mechanism, cost is high, and operation is also multiple It is miscellaneous.

Chinese patent ZL201020151352.4 discloses a kind of Manual focusing zoom lens, and it includes microscope base and tubular master Body, the cylindrical body is connected on microscope base by screw thread, and amasthenic lens group, varifocal mirror are provided with the cylindrical body Head group, the amasthenic lens group is installed in the anterior stack shell of cylindrical body, and pins fixation, the zoom lens by camera lens protecgulum Group is installed in zoom group lens barrel stack shell, and zoom group lens barrel, which is installed on to slide with cylindrical body in the stack shell of cylindrical body rear portion again, matches somebody with somebody Close, be axially arranged with spring between cylindrical body, and by guide locating device provided circumferentially fixed to limit its rotational freedom, the cylinder Adjustment barrel, regulation ring are cased with outside shape back body stack shell, the focusing drum is close to guide locating device provided, the focusing ring is with adjusting Burnt cylinder is close to and pinned by C-shaped ring fix, and provided with axial push structure between focusing drum.It can thus be appreciated that, it is known that zoom lens Part is more, structure is excessively complicated, and cost of parts is high, and makes the operation zoom lens cost time many.

There is disadvantages mentioned above in view of common structure, designer is the road for aforesaid drawbacks Improvement, there is this finally The generation of utility model.

Utility model content

The utility model main purpose is that there is provided the mirror that a kind of short-range inclined-plane produces rise and fall displacement fine setting Head focal-distance regulation structure.

The utility model secondary objective is that there is provided a kind of lens focus adjustment for operating convenient, simple in construction, cost low Structure.

To reach above-mentioned purpose and effect, the lens focal distance regulating structure that the utility model is provided, at least including a pedestal, One adjustment seat and a camera lens, and：

There is one first endoporus, the first inner port edge is extended with a bulge loop, and the extension of bulge loop periphery is most inside the pedestal Individual projection, the pedestal is respectively equipped with a sliding bar in a symmetrical corner, and sliding bar is cased with a pad and a spring, is sliding Bar end is provided with a screw hole, and locks a screw；

There is one second endoporus, the second endoporus wall is provided with an internal thread, and adjustment seat bottom surface is provided with inside the adjustment seat Multiple grooves, and each groove has an inclined-plane, the adjustment seat is provided with a limiting section, limiting section in a symmetrical corner to be set There is a chute；And,

The outside wall surface of the camera lens is provided with an external screw thread, and screw lock is on the internal thread of foregoing second endoporus；

When the adjustment cover for seat is located at the pedestal, the sliding bar is each passed through the chute of the limiting section, spring with Pad is inserted in sliding bar respectively, and is each passed through pad with screw and is locked in the screw hole of sliding bar, distinguishes the projection of pedestal In the groove for being inserted in adjustment seat, and projection has a movement spacing in groove, and order, which rotates adjustment seat, makes projection past in groove Complex displacement, and along the inclined-plane rise and fall of groove, reach that rotation adjustment seat changes spacing with pedestal, drive camera lens to produce and stretch The fine setting of contracting distance, so that the utility model lens focal distance regulating structure is simple in construction, cost is low, operation facility.

According to said structure, the sliding bar of the pedestal is inserted in the chute in the limiting section of foregoing adjustment seat respectively, and order is slided Bar carries out shift reciprocately along chute.

According to said structure, the sliding bar is through the chute in limiting section and is inserted in spring, and is each passed through pad with screw Piece is locked in the screw hole of sliding bar, makes the elastic force of spring aid in changing adjustment seat and pedestal spacing.

To make above-mentioned purpose of the present utility model, effect and feature more specifically to be understood, according to each brief description of the drawings such as Under.

Brief description of the drawings

Fig. 1 is the structural upright constitutional diagram of the utility model preferred embodiment.

Fig. 2 is the structural upright exploded view of the utility model preferred embodiment.

Fig. 3 A are that the projection of the adjustment seat of the utility model preferred embodiment rotates frontal plane right view.

Fig. 3 B be the utility model preferred embodiment the adjustment seat projection rotate after plane right view.

Fig. 4 is the structural plan sectional view of the utility model preferred embodiment.

Label declaration：

Pedestal ... ... ... 1；

First endoporus ... 11；Bulge loop ... ... 12；

Projection ... ... 13；Sliding bar ... ... 14；

Screw hole ... ... 141；Pad ... ... 15；

Spring ... ... 16；Screw ... ... 17；

Adjust seat ... ... ... 2；

Second endoporus ... 21；Internal thread ... ... 22；

Groove ... ... 23；Inclined-plane ... ... 231；

Mobile spacing ... 232；Limiting section ... ... 24；

Chute ... ... 241；

Camera lens ... ... ... 3；

External screw thread ... ... 3.

Embodiment

Please refer to shown in Fig. 1 to Fig. 4, it is known that the structure of the preferred embodiment of the utility model one mainly includes one Pedestal 1, one adjusts the camera lens 3 of seat 2 and one, wherein：

The inside of pedestal 1 has one first endoporus 11, and the edge of the first endoporus 11 is extended with a bulge loop 12, the periphery of bulge loop 12 The more several projections 13 of extension, the pedestal 1 is respectively equipped with a sliding bar 14 in a symmetrical corner, and sliding bar 14 is cased with a pad 15 With a spring 16, a screw hole 141 is provided with the end of sliding bar 14, and a screw 17 can be locked；

The inside of adjustment seat 2 has one second endoporus 21, and its endoporus wall is provided with an internal thread 22, adjustment seat 2 bottom surface Provided with most grooves 23, and each groove 23 has an inclined-plane 231, and inclined-plane 231 makes the upper and lower displacement in groove 23 of projection 13, then Seat 2 is adjusted to be provided with a limiting section 24, limiting section 24 provided with a chute 241 in a symmetrical corner；And,

The outside wall surface of the camera lens 3 is provided with an external screw thread 31, and screw lock is on the internal thread 22 of foregoing second endoporus 21.

Thereby, foregoing adjustment seat 2 is linked in pedestal 1, and the sliding bar 141 of pedestal 1 respectively penetrates the chute in limiting section 24 241, then sliding bar 14 is inserted in spring 16 respectively, continue and pad 15 is passed through with screw 17, and screw hole 141 is locked with screw 17 Interior, the compression spring 16 of screw 17 to the surface of limiting section 24 forms elastic force compression.More several projections 13 of pedestal 1 are inserted in tune respectively again More several grooves 23 of bed rearrangement 2, and there is a movement spacing 232 between projection 13 and groove 23, therefore, rotation adjustment seat 2 makes convex The shift reciprocately in groove 23 of block 13, and along the inclined-plane rise and fall of groove 23, because the sliding bar 14 of pedestal 1 covers respectively Enter the chute 241 in limiting section 24, and shift reciprocately is carried out along in chute 241, so adjustment seat 2 and pedestal 1 can be limited Between rotation distance, reach and rotate the change that adjustment seat 2 and pedestal 1 produce spacing, drive camera lens 3 to produce the micro- of distance of stretch out and draw back Transfer and make, it is noted that the foregoing compression spring 16 of screw 17 to the surface of limiting section 24 forms elastic force compression, allow the bullet of spring 16 Power auxiliary changes the spacing of adjustment seat 2 and pedestal 1, allows during inclined-plane rise and fall of the projection 13 along groove 23, has There is the function of augmented thrust and pull-back forces.

Claims

1. a kind of lens focal distance regulating structure, at least including a pedestal, an adjustment seat and a camera lens, it is characterised in that：

There is one first endoporus, the first inner port edge is extended with a bulge loop, and the extension of bulge loop periphery is more several convex inside the pedestal Block, the pedestal is respectively equipped with a sliding bar in a symmetrical corner, and sliding bar is cased with a pad and a spring, at sliding bar end End is provided with a screw hole；

There is one second endoporus, the second endoporus wall is provided with an internal thread, and adjustment seat bottom surface is provided with multiple inside the adjustment seat Groove, and each groove has an inclined-plane, the adjustment seat is respectively equipped with a limiting section, limiting section in a symmetrical corner to be set There is a chute；And,

When the adjustment cover for seat is located at the pedestal, the chute of the sliding bar through the limiting section carries out shift reciprocately, and The spring and pad are inserted in sliding bar respectively, and are each passed through pad with screw and are locked in the screw hole of sliding bar, make pedestal Projection be inserted in respectively adjustment seat groove in, and projection in groove have one movement spacing, rotate adjustment seat can make projection The shift reciprocately in groove, and along the inclined-plane rise and fall of groove, drive camera lens to produce the fine setting of distance of stretch out and draw back.