CN213986970U

CN213986970U - Internal rotation type sealing zooming mechanism

Info

Publication number: CN213986970U
Application number: CN202120124890.2U
Authority: CN
Inventors: 郑磊; 洪辉; 杨巨恒; 李国成; 王陈锐; 董钰锋; 吴龙城; 余心仪; 杨斌; 蔡佳霖; 常时光
Original assignee: Zhejiang Huadong Photoelectric Instrument Co ltd
Current assignee: Zhejiang Huadong Photoelectric Instrument Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-08-17
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses an internal rotation type sealing zoom mechanism, which belongs to the field of optical zoom and comprises a rubber eyeshade, a fixing screw, a first rotating shell, a first lens fixing sleeve, a sealing ring, a fixing shell, a second lens fixing sleeve, a second rotating shell, a concave lens fixing ring, a first lens group, a second lens group, a retainer ring, a convex lens and a pressing ring, the first rotating shell and the second rotating shell are connected through a fixing screw and insections, a fixed shell is arranged between the first rotating shell and the second rotating shell, the fixed shell is in threaded connection with the second rotating shell, a check ring and a pressing ring are arranged between the second rotating shell and the fixed shell, a sealing ring is fixed between the retainer ring and the pressing ring, the sealing ring is sleeved on the second rotating shell, and the second rotating shell is internally and sequentially fixed with a convex lens, a first lens group and a second lens group. The utility model discloses can realize under environment such as overcast and rainy, sand and dust, high temperature, low temperature, the optics of mechanism zoom the function.

Description

Internal rotation type sealing zooming mechanism

Technical Field

The utility model relates to a field, concretely relates to sealed zoom mechanism of interior formula of revolving is zoomed to accurate optics.

Background

In the conventional zoom internal thread rotating device, gaps usually exist, so that the device shakes in the radial direction and the axial direction. The O-shaped sealing ring is arranged at the matching part of the rotating part and the connecting piece to play a role in sealing, and the matching notch of the rotating part and the connecting piece can be extruded during rotation to cause sealing failure (deformation, fracture and the like) and reduce the sealing performance.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides an internal rotation formula seals zoom mechanism.

The technical scheme of the utility model as follows: the utility model provides a sealed zoom mechanism of interior formula of revolving, includes rubber eye-shade, set screw, first rotating housing, the fixed cover of first lens, sealing washer, fixed casing, the fixed cover of second lens, the rotating housing of second, concave mirror retainer plate, first battery of lens, second battery of lens, retaining ring, convex lens and clamping ring, first rotating housing is connected with the rotating housing of second through set screw and insection, be equipped with fixed casing between first rotating housing and the second rotating housing, fixed casing and the rotating housing threaded connection of second, be equipped with retaining ring and clamping ring between the rotating housing of second and the fixed casing, be fixed with the sealing washer between retaining ring and the clamping ring, the sealing washer cover is established on the rotating housing of second, be fixed with convex lens, first battery of lens and second battery of lens in proper order in the rotating housing of second.

A first lens fixing sleeve is arranged between the first lens group and the second lens group.

And a second lens fixing sleeve is arranged between the first lens group and the convex lens.

One side of the second lens group is provided with a concave mirror fixing ring, the tail of the second rotating shell is provided with threads, and the concave mirror fixing ring is fixed at the tail of the second rotating shell.

The front end of the first rotating shell is provided with a rubber eyeshade.

The fixed shell is connected with the pressing ring through threads.

And V-shaped grooves are formed in the insections of the second rotating shell.

The utility model discloses a retaining ring makes the sealing washer fill up the space between fixed casing and the second rotating housing with the clamping ring combination, realizes sealedly, can be under environment such as overcast and rainy, sand and dust, high temperature, low temperature to axial reciprocating motion between casing and the casing is accomplished in the manual mode rotation, realizes the mechanism optics function of zooming, product when rotatory have better stability.

Drawings

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

FIG. 2 is a schematic view of a first rotating housing;

FIG. 3 is a schematic structural view of a first rotating housing;

FIG. 4 is a schematic view of a second rotating housing;

FIG. 5 is a schematic view of a second rotating housing;

in the figure: the lens comprises a rubber eyeshade 1, a fixing screw 2, a first rotating shell 3, a first lens fixing sleeve 4, a first sealing ring 5, a fixing shell 6, a second lens fixing sleeve 7, a second rotating shell 8, a concave lens fixing ring 9, a first lens group 10, a second lens group 11, a check ring 12, a convex lens 13, a pressing ring 14, a threaded hole 15, a tooth pattern 16 and a V-shaped groove 17.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-5, an inward-rotation type sealed zoom mechanism includes a rubber eyeshade 1, a fixing screw 2, a first rotating casing 3, a first lens fixing sleeve 4, a sealing ring 5, a fixing casing 6, a second lens fixing sleeve 7, a second rotating casing 8, a concave lens fixing ring 9, a first lens group 10, a second lens group 11, a retainer ring 12, a convex lens 13, and a pressing ring 14, wherein the first rotating casing 3 and the second rotating casing 8 are connected through the fixing screw 2 and a insection 16, and a circle of V-shaped groove 17 is formed on the insection 16 of the second rotating casing 8. Be equipped with fixed casing 6 between first rotary casing 3 and the second rotary casing 8, be equipped with the screw thread on the casing body of the second rotary casing 8, fixed casing 6 and the 8 threaded connection of the second rotary casing, be equipped with retaining ring 12 and clamping ring 14 between second rotary casing 8 and the fixed casing 6, fixed casing 6 is connected through the screw thread with clamping ring 14, be fixed with sealing washer 5 between retaining ring 12 and the clamping ring 14, the sealing washer 5 cover is established on the second rotary casing 8.

Convex lens 13, first battery of lens 10 and second battery of lens 11 are fixed with in proper order in the rotatory casing of second 8, one side of second battery of lens 11 is equipped with concave mirror retainer plate 9, the afterbody of the rotatory casing of second 8 is equipped with the screw thread, concave mirror retainer plate 9 is through fixing the afterbody at the rotatory casing of second 8, be equipped with the fixed cover of first lens 4 between first battery of lens 10 and the second battery of lens 11, be equipped with the fixed cover of second lens 7 between first battery of lens 10 and the convex lens 13. The front end of the first rotating shell 3 is provided with a rubber eyeshade 1, and the rubber eyeshade 1 is fixedly connected with the first rotating shell 3 through a fixing screw 2.

As shown in fig. 2 to 5, the first rotary housing 3 and the second rotary housing 8 are engaged by the insections to restrict their relative radial movement and circumferential rotation, and the first rotary housing 3 is fixed by the screws to restrict their relative axial movement, so that the second rotary housing 8 can be rotated synchronously. When the fixed shell 6 is fixed, the first rotating shell 3 is rotated to drive the second rotating shell 8 and the connecting piece to do integral telescopic motion, so that the optical zooming of the internal rotation type sealing zooming mechanism is realized.

The left side of the retainer ring 12 is in contact with the fixed shell 6, the right side of the retainer ring is in contact with the sealing ring 5, the right side of the sealing ring 5 is in contact with the pressing ring 14, and the pressing ring 14 is fixed with the fixed shell 6 through threads. The tight-turning pressing ring 14 presses the sealing ring 5, so that the sealing ring 5 fills the gap between the fixed shell 6 and the second rotating shell 8, and sealing is realized. The retainer ring 12 has a backward limiting function for the zoom body (the zoom body is composed of a rubber eyeshade 1, a fixing screw 2, a rotating shell a3, a first lens fixing sleeve 4, a second lens fixing sleeve 7, a second rotating shell 8, a concave mirror fixing ring 9, a first lens group 10, a second lens group 11 and a convex mirror 13), and the pressing ring 14 has a forward limiting function for the zoom body.

Claims

1. The utility model provides a sealed zoom mechanism of interior spiral, includes set screw (2), first rotatory casing (3), sealing washer (5), fixed casing (6), second rotatory casing (8), first lens group (10), second lens group (11), retaining ring (12), convex lens (13) and clamping ring (14), its characterized in that: first rotating housing (3) is connected with second rotating housing (8) through set screw (2) and insection (16), be equipped with between first rotating housing (3) and second rotating housing (8) fixed casing (6), fixed casing (6) and second rotating housing (8) threaded connection, be equipped with retaining ring (12) and clamping ring (14) between second rotating housing (8) and fixed casing (6), be fixed with between retaining ring (12) and clamping ring (14) sealing washer (5), the cover is established on second rotating housing (8) sealing washer (5), be fixed with convex lens (13), first battery of lens (10) and second battery of lens (11) in proper order in second rotating housing (8).

2. The sealed internally rotating zoom mechanism of claim 1, wherein: a first lens fixing sleeve (4) is arranged between the first lens group (10) and the second lens group (11).

3. The sealed internally rotating zoom mechanism of claim 1, wherein: a second lens fixing sleeve (7) is arranged between the first lens group (10) and the convex lens (13).

4. The sealed internally rotating zoom mechanism of claim 1, wherein: one side of the second lens group (11) is provided with a concave mirror fixing ring (9), the tail of the second rotating shell (8) is provided with threads, and the concave mirror fixing ring (9) is fixed at the tail of the second rotating shell (8).

5. The sealed internally rotating zoom mechanism of claim 1, wherein: the front end of the first rotating shell (3) is provided with a rubber eyeshade (1).

6. The sealed internally rotating zoom mechanism of claim 1, wherein: the fixed shell (6) is connected with the pressing ring (14) through threads.

7. The sealed internally rotating zoom mechanism of claim 1, wherein: and V-shaped grooves (17) are formed in the insections of the second rotating shell (8).