CN216646938U

CN216646938U - Structural device for preventing lens cam from jumping

Info

Publication number: CN216646938U
Application number: CN202122393217.1U
Authority: CN
Inventors: 白继清
Original assignee: Changchun Yili Photoelectric Instrument Co ltd
Current assignee: Changchun Yili Photoelectric Instrument Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-31
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a structural device for preventing a lens cam from jumping, which solves the problem that the cam is easy to jump in the use process after being adjusted to influence the focal length in the prior art. The utility model provides a prevent constructional device that camera lens cam is beated, include the body and be located the cam on the body, the fixed surface of body is connected with the fixed plate, the spout that is close to the cam is seted up at the top of fixed plate, the inside sliding connection of spout has the slide bar, the adjustment tank has been seted up to the side of slide bar, the inside sliding connection of adjustment tank has the regulating block that is T shape, a plurality of latch has been seted up to the one end that the adjustment tank was kept away from to the regulating block, the inside of adjustment tank is equipped with adjustment mechanism, the inside of spout is equipped with extrusion mechanism. The cam of the utility model can not jump to cause focal length change, so that the lens is more stable to use.

Description

Structural device for preventing lens cam from jumping

Technical Field

The utility model relates to the technical field of lens focal length adjustment, in particular to a structural device for preventing a lens cam from jumping.

Background

The optical lens is an essential component in a machine vision system and directly influences the quality of imaging quality, and can be divided into a short-focus lens, a medium-focus lens and a long-focus lens; the camera can be adjusted by using the cam when focusing, so that the photographing effect is good.

In the prior art, when shooting, the position is selected firstly, then the lens of the camera is fixed in position, then the cam is rotated to adjust the focal length of the camera, and the camera is arranged after being adjusted to a proper position to make a video, however, after the cam is adjusted, the cam is easy to jump in the using process to change the focal length, so that the lens is blurred and cannot be used during shooting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a structural device for preventing a lens cam from jumping, and solves the problem that the cam is easy to jump in the use process after being adjusted to influence the focal length in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent constructional device that camera lens cam is beated, include the body and be located the cam on the body, the fixed surface of body is connected with the fixed plate, the spout that is close to the cam is seted up at the top of fixed plate, the inside sliding connection of spout has the slide bar, the adjustment tank has been seted up to the side of slide bar, the inside sliding connection of adjustment tank has the regulating block that is T shape, a plurality of latch has been seted up to the one end that the adjustment tank was kept away from to the regulating block, the inside of adjustment tank is equipped with adjustment mechanism, the inside of spout is equipped with extrusion mechanism.

Preferably, adjustment mechanism includes the adjusting screw with slide bar top threaded connection, and the adjusting screw is located the inside one end of adjustment tank and rotates with the top of regulating block to be connected, and the holding tank has been seted up to the both sides of adjustment tank, and the both ends of regulating block are located adjacent holding tank respectively inside.

Preferably, the extrusion mechanism includes the restriction groove of seting up in spout one side, and the spout is kept away from one side of restriction groove and is rotated and be connected with the restriction pole, and the slide bar passes through one side elastic connection of extrusion spring and spout.

Preferably, two sides of the sliding rod are fixedly connected with triangular supporting blocks, and the bottoms of the supporting blocks are attached to the top of the fixing plate.

Preferably, the two sides of the sliding groove are provided with anti-falling grooves, and the two sides of the sliding rod are rotatably connected with rollers positioned inside the adjacent anti-falling grooves.

Preferably, the top of the fixing plate is rotatably connected with an inverted V-shaped auxiliary rod, and the top of the auxiliary rod is close to the adjusting block.

The utility model has at least the following beneficial effects:

when the focal length to the camera lens is adjusted, can block the recess of cam surface through the latch on the regulating block for the cam can't rotate, thereby makes the camera lens when using, and the cam can not beat and lead to the focal length to change, makes the use of camera lens more stable.

The utility model also has the following beneficial effects:

when the cam needs to be adjusted to a large extent, the sliding rod needs to be pulled away from the cam, then the limiting rod is rotated to limit the sliding rod, and the sliding rod is prevented from hindering the cam from being adjusted to a large extent due to the elastic force of the extrusion spring.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of the fixation plate of FIG. 1;

fig. 3 is a schematic side view of the slide bar of fig. 1.

In the figure: 1. a body; 2. a cam; 3. a chute; 4. a slide bar; 5. an adjustment groove; 6. a regulating block; 7. clamping teeth; 8. an adjustment mechanism; 9. an extrusion mechanism; 10. a support block; 11. a drop-proof groove; 12. a roller; 13. an auxiliary lever; 14. a fixing plate; 801. adjusting the screw rod; 802. accommodating grooves; 901. a limiting groove; 902. a restraining bar; 903. compressing the spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-3, a structural device for preventing a lens cam from jumping comprises a body 1 and a cam 2 located on the body 1, specifically, a groove is formed in the surface of the cam 2 to facilitate rotation of a person, a fixing plate 14 is fixedly connected to the surface of the body 1, specifically, the fixing plate 14 is in a U shape and does not interfere with rotation of the cam 2, a sliding groove 3 close to the cam 2 is formed in the top of the fixing plate 14, a sliding rod 4 is connected to the sliding groove 3 in a sliding mode, an adjusting groove 5 is formed in the side face of the sliding rod 4, an adjusting block 6 in a T shape is connected to the adjusting groove 5 in a sliding mode, a plurality of clamping teeth 7 are formed in one end, away from the adjusting groove 5, an adjusting mechanism 8 is arranged inside the adjusting groove 5, specifically, the adjusting mechanism 8 enables the adjusting block 6 to move up and down to enable the focal length of the body 1 to be adjusted and used, and an extrusion mechanism 9 is arranged inside the sliding groove 3.

The scheme has the following working processes:

when using lens body 1, need use cam 2 to focus, make slide bar 4 slide and be close to cam 2 in spout 3 through extrusion mechanism 9 after the focusing is ended, make adjusting block 6 inside adjusting groove 5 can contact with cam 2, and make latch 7 block with the recess on cam 2 surface, then use adjusting mechanism 8 to drive cam 2 to adjust block 6 and finely tune, make the focus can normal use, later use body 1, when needs adjust the focus by a wide margin, need stimulate slide bar 4 earlier and make adjusting block 6 leave cam 2, then adjust cam 2.

According to the working process, the following steps are known:

can use latch 7 on 6 surfaces of regulating block to block the recess that cam 2 surface was seted up convenient rotation cam 2 after 2 regulation of cam are finished to make and can not beat the use that changes focus influence body 1 after 2 adjustments of cam.

Further, adjustment mechanism 8 includes adjusting screw 801 with slide bar 4 top threaded connection, adjusting screw 801 is located the inside one end of adjustment tank 5 and is connected with the top of regulating block 6 is rotated, holding tank 802 has been seted up to the both sides of adjustment tank 5, the both ends of regulating block 6 are located adjacent holding tank 802 respectively inside, it is specific, when the position of regulating block 6 needs to be adjusted, adjusting screw 801 can be rotated, adjusting screw 801's rotation makes regulating block 6 slide from top to bottom in the inside of holding tank 802.

Further, the pressing mechanism 9 includes a limiting groove 901 formed in one side of the sliding groove 3, which is far away from the limiting groove 901, is rotatably connected with a limiting rod 902, the sliding rod 4 is elastically connected with one side of the sliding groove 3 through a pressing spring 903, specifically, the sliding rod 4 is pulled to enable the sliding rod 4 to be far away from the cam 2 when the cam 2 needs to be rotated, then the limiting rod 902 is rotated, one end of the limiting rod 902 is enabled to enter the limiting groove 901 to prevent the sliding rod 4 from being close to the cam 2, and the limiting rod 902 is rotated after the adjustment is finished to enable the sliding rod 4 not to be limited so as to be close to the cam 2 through the elastic force of the pressing spring 903.

Furthermore, two sides of the sliding rod 4 are fixedly connected with triangular supporting blocks 10, the bottoms of the supporting blocks 10 are attached to the top of the fixing plate 14, specifically, the sliding rod 4 can be prevented from inclining through the triangular supporting blocks 10 in the sliding process of the sliding rod 4, and the adjusting blocks 6 on the sliding rod 4 cannot be influenced when the cam 2 is limited.

Furthermore, anti-drop grooves 11 have been all seted up to the both sides of spout 3, and the both sides of slide bar 4 are rotated and are connected with the gyro wheel 12 that is located adjacent anti-drop groove 11 inside, and specifically, slide bar 4 can reduce the frictional force with spout 3 bottom through two gyro wheels 12 when sliding. While also being prevented from escaping from the chute 3 by the two rollers 12.

Further, the top of fixed plate 14 is rotated and is connected with auxiliary rod 13 that is the shape of falling V, and the top of auxiliary rod 13 is close to regulating block 6, and is concrete, and auxiliary rod 13 rotates after slide bar 4 is close to cam 2 for the sharp-pointed one end of auxiliary rod 13 is close to regulating block 6, supports slide bar 4, prevents that slide bar 4 from receiving the extrusion of extrusion spring 903 and leading to latch 7 to break away from cam 2.

In conclusion, when the body 1 needs to be used, the focal length can be adjusted through the cam 2, the adjusted sliding rod 4 enables the adjusting block 6 to be close to the cam 2, then the cam 2 is clamped through the latch 7 on the adjusting block 6, and when the cam 2 needs to be adjusted greatly, the limiting rod 902 is rotated to enable the sliding rod 4 not to be close to the cam 2 temporarily, so that adjustment is convenient.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a prevent constructional device that camera lens cam is beated, includes body (1) and is located cam (2) on body (1), its characterized in that, the fixed surface of body (1) is connected with fixed plate (14), the top of fixed plate (14) is seted up and is close to spout (3) of cam (2), the inside sliding connection of spout (3) has slide bar (4), adjustment tank (5) have been seted up to the side of slide bar (4), the inside sliding connection of adjustment tank (5) has regulating block (6) that are T shape, a plurality of latch (7) have been seted up to the one end that adjustment tank (5) were kept away from in regulating block (6), the inside of adjustment tank (5) is equipped with adjustment mechanism (8), the inside of spout (3) is equipped with extrusion mechanism (9).

2. The structural device for preventing the lens cam from jumping as claimed in claim 1, wherein said adjusting mechanism (8) includes an adjusting screw (801) threadedly connected to the top of said sliding rod (4), one end of said adjusting screw (801) located inside said adjusting groove (5) is rotatably connected to the top of said adjusting block (6), two sides of said adjusting groove (5) are opened with receiving grooves (802), and two ends of said adjusting block (6) are located inside adjacent receiving grooves (802), respectively.

3. A structural device for preventing lens cam bouncing as claimed in claim 1, wherein the pressing mechanism (9) comprises a limiting groove (901) formed on one side of the sliding groove (3), a limiting rod (902) is rotatably connected to one side of the sliding groove (3) far away from the limiting groove (901), and the sliding rod (4) is elastically connected to one side of the sliding groove (3) through a pressing spring (903).

4. The structural device for preventing the lens cam from jumping as claimed in claim 1, wherein the two sides of the sliding rod (4) are fixedly connected with triangular supporting blocks (10), and the bottom of the supporting blocks (10) is attached to the top of the fixing plate (14).

5. The structural device for preventing the lens cam from jumping as claimed in claim 1, wherein the sliding groove (3) is formed with anti-falling grooves (11) on both sides thereof, and the sliding rod (4) is rotatably connected with rollers (12) inside the adjacent anti-falling grooves (11) on both sides thereof.

6. A structural device for preventing lens cam bouncing as claimed in claim 1, wherein an auxiliary rod (13) having an inverted V shape is rotatably attached to the top of the fixed plate (14), and the top of the auxiliary rod (13) is adjacent to the adjusting block (6).