阅读说明：本技术 一种镜头压圈紧固、拆卸装置 (Lens clamping ring fastening and dismounting device ) 是由 何国顺 张琪步 张艳花 于 2019-11-06 设计创作，主要内容包括：本发明提供一种镜头压圈紧固、拆卸装置,包括镜头固定圆盘以及定位销,镜头固定圆盘上设有与定位销匹配的定位孔,镜头固定圆盘上设有固定组件。本发明通过对镜头压圈紧固、拆卸装置的巧妙设计,解决了现有技术中缺少与活动卡扳配合的镜头固定装置的问题。(The invention provides a lens pressing ring fastening and dismounting device which comprises a lens fixing disc and a positioning pin, wherein a positioning hole matched with the positioning pin is formed in the lens fixing disc, and a fixing assembly is arranged on the lens fixing disc. The invention solves the problem that a lens fixing device matched with the movable clamping plate is lacked in the prior art by skillfully designing the fastening and dismounting device of the lens pressing ring.)

1. The utility model provides a camera lens clamping ring fastening, dismounting device which characterized in that, includes camera lens fixed disk (1) and locating pin (2), is equipped with locating hole (3) that match with locating pin (2) on camera lens fixed disk (1), is equipped with fixed subassembly on camera lens fixed disk (1).

2. The lens pressing ring fastening and dismounting device according to claim 1, wherein the fixing component comprises a one-way bearing (4) and a base (5), an outer ring of the one-way bearing (4) is connected with the lens fixing disc (1), an inner ring of the one-way bearing (4) is connected with the base (5), and a screw (14) for fixedly connecting the lens fixing disc (1) and the base (5) is arranged on the lens fixing disc (1).

3. The lens pressing ring fastening and dismounting device according to claim 2, wherein a disc groove is formed in the base (5), the lens fixing disc (1) is located in the disc groove, a connecting column (6) is arranged in the disc groove, an inner ring of the one-way bearing (4) is sleeved on the connecting column (6), the inner ring of the one-way bearing (4) is connected with the connecting column (6) through a flat key (7), a connecting through hole is formed in the center of the lens fixing disc (1), the lens fixing disc (1) is sleeved on an outer ring of the one-way bearing (4), and the outer ring of the one-way bearing (4) is connected with the lens fixing disc (1) through the flat key (7).

4. A lens pressing ring fastening and dismounting device according to claim 3, wherein said screw (14) is screwed on the side of said lens fixing disk (1), and said base (5) is provided with a passage for said screw (14) to pass through.

5. The lens pressing ring fastening and dismounting device according to claim 3, wherein a one-way bearing outer ring pressing cover (8) is provided on the lower side surface of the lens fixing disc (1), the one-way bearing outer ring pressing cover (8) comprises an annular limiting portion and a connecting portion connected with the limiting portion, the connecting portion is connected with the lower side surface of the lens fixing disc (1), a one-way bearing outer ring limiting ring (9) is arranged at the connecting through hole, the one-way bearing outer ring limiting ring (9) is coaxial with the one-way bearing (4), the limiting part is matched with the one-way bearing outer ring limiting ring (9) to limit the outer ring of the one-way bearing (4), the upper end of the connecting column (6) is provided with a one-way bearing inner ring gland (10), a one-way bearing inner ring limiting ring (11) is arranged in the disc groove, and the one-way bearing inner ring gland (10) is matched with the one-way bearing inner ring limiting ring (11) to limit the inner ring of the one-way bearing (4).

6. The lens pressing ring fastening and dismounting device according to claim 1, wherein the positioning pin (2) is cylindrical, and one end of the positioning pin (2) is provided with a threaded column.

7. The lens pressing ring fastening and detaching device according to claim 2, wherein the base (5) is provided with a through hole for passing a bolt.

Technical Field

The invention relates to the field of lens assembling and disassembling tools, in particular to a lens pressing ring fastening and disassembling device.

Background

The pressing ring in the thermal imaging lens is used for fixing optical parts inside the lens, and the pressing ring and the lens body are connected in a screwing structure. Chinese patent application No. CN201120506817.8 discloses a movable clamp plate for rotating a clamping ring when fastening and detaching the clamping ring, which can be applied to various lenses with different radii because the movable base can move along the cross arm of the ruler base. When the lens pressing ring is fastened and disassembled, the lens body needs to be fixed, and the movable clamping plate is used for rotating the pressing ring, so that a lens fixing device matched with the movable clamping plate is absent in the prior art.

Disclosure of Invention

The invention provides a lens pressing ring fastening and dismounting device, which solves the problem that a lens fixing device matched with a movable clamping plate is lacked in the prior art.

A lens clamping ring fastening and dismounting device comprises a lens fixing disc and a positioning pin, wherein a positioning hole matched with the positioning pin is formed in the lens fixing disc, and a fixing assembly is arranged on the lens fixing disc. The lens fixing disc is fixedly connected to a fixed working surface through the fixing assembly, three threaded holes are uniformly distributed in the thermal image lens generally in the circumferential direction, one part of the positioning pin is inserted into the threaded holes, the other part of the positioning pin is inserted into the positioning holes, the positioning pin is used for limiting the lens, the lens cannot rotate, and the lens is fixed in the horizontal direction. The movable clamping plate can rotate the pressing ring to realize the disassembly and the assembly of the pressing ring.

Furthermore, the fixed assembly comprises a one-way bearing and a base, the outer ring of the one-way bearing is connected with the lens fixed disc, the inner ring of the one-way bearing is connected with the base, and the lens fixed disc is provided with a screw for fixedly connecting the lens fixed disc with the base. After the lens is fixed on the lens fixing disc, the movable clamping plate rotates the pressing ring, the one-way bearing cannot rotate, after the movable clamping plate rotates to a certain angle, the movable clamping plate rotates reversely, the one-way bearing rotates, the movable clamping plate returns to the original angle, and next rotation is facilitated.

Further, a disc groove is formed in the base, the lens fixing disc is located in the disc groove, a connecting column is arranged in the disc groove, an inner ring of the one-way bearing is sleeved on the connecting column, the inner ring of the one-way bearing is connected with the connecting column through a flat key, a connecting through hole is formed in the circle center of the lens fixing disc, the lens fixing disc is sleeved on an outer ring of the one-way bearing, and the outer ring of the one-way bearing is connected with the lens fixing disc through a flat key. The flat keys prevent the outer ring of the one-way bearing and the lens fixing disc and the inner ring of the one-way bearing and the connecting column from rotating. The lens fixing disc is positioned in the disc groove, so that space is saved.

Furthermore, the screw thread is connected with the side surface of the lens fixing disc, and a channel for the screw to pass through is arranged on the base. When the pressing ring is installed on the lens body to be detached, the one-way bearing plays a role, the rotating operation is simplified, when the pressing ring needs to be screwed, a screw penetrates through the channel and is connected to the lens fixing disc in a threaded mode, the lens fixing disc is fixedly connected with the base, the one-way bearing does not rotate any more, and the pressing ring can be fastened.

Further, be equipped with one-way bearing outer lane gland on the fixed disc of camera lens downside face, one-way bearing outer lane gland includes annular spacing portion and the connecting portion of being connected with spacing portion, and connecting portion are connected with the fixed disc downside of camera lens, connect through-hole department and be equipped with one-way bearing outer lane spacing ring, one-way bearing outer lane spacing ring is coaxial with one-way bearing, and spacing portion and the cooperation of one-way bearing outer lane spacing ring carry on spacingly to one-way bearing's outer lane, the spliced pole upper end is equipped with one-way bearing inner race gland, be equipped with one-way bearing inner race spacing ring in the disc recess, one-way bearing inner race gland and the cooperation of one-way. The limiting part is matched with the one-way bearing outer ring limiting ring to limit the outer ring of the one-way bearing, and the one-way bearing inner ring gland is matched with the one-way bearing inner ring limiting ring to limit the inner ring of the one-way bearing, so that the up-and-down movement of the bearing and the flat key is avoided.

Furthermore, the locating pin is cylindrical, and one end of the locating pin is provided with a threaded column. The threaded column is matched with a threaded hole of the lens to connect the positioning pin to the lens.

Furthermore, the base is provided with a through hole for a bolt to pass through. The bolt passes through the through hole, fixes the base to the fixed working face.

According to the technical scheme, the invention has the following advantages:

the lens fixing disc is fixedly connected to a fixed working surface through the fixing assembly, three threaded holes are uniformly distributed in the thermal image lens generally in the circumferential direction, one part of the positioning pin is inserted into the threaded holes, the other part of the positioning pin is inserted into the positioning holes, the positioning pin is used for limiting the lens, the lens cannot rotate, and the lens is fixed in the horizontal direction. The movable clamping plate can rotate the pressing ring to realize the disassembly and the assembly of the pressing ring.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is an external view of the present invention.

FIG. 2 is a schematic view of the internal structure of the present invention.

FIG. 3 is a view showing the structure of the components of the present invention.

1. The lens fixing device comprises a lens fixing disc, 2, a positioning pin, 3, a positioning hole, 4, a one-way bearing, 5, a base, 6, a connecting column, 7, a flat key, 8, a one-way bearing outer ring gland, 9, a one-way bearing outer ring limiting ring, 10, a one-way bearing inner ring gland, 11, a one-way bearing inner ring limiting ring, 12, a lens, 13, a working surface, 14 and a screw.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.