CN203024732U

CN203024732U - Optical lever measuring device with laser sight

Info

Publication number: CN203024732U
Application number: CN201220716430XU
Authority: CN
Inventors: 安郁宽
Original assignee: Binzhou Medical College
Current assignee: Binzhou Medical College
Priority date: 2012-12-05
Filing date: 2012-12-05
Publication date: 2013-06-26
Anticipated expiration: 2022-12-05

Abstract

The utility model relates to an optical lever measuring device with a laser sight. The optical lever measuring device comprises an optical lever with the laser sight and a telescope ruler group, wherein the optical lever with the laser sight is characterized in that a laser device (5) serving as the laser sight is arranged on a plane mirror (3) of the optical lever, and a laser beam (21) given out by the laser device is emitted along the central normal direction of the plane mirror (3), the telescope ruler group mainly comprises a telescope (10) and a ruler (11) which are fixedly on the two sides of a same connecting piece, an aiming point marker is drawn on the connecting piece, the marker is arranged at a center point (22) of a telescope location point (17) and a ruler location point (18), and when the laser beam (21) aims at the aiming point marker, the image of the ruler (11) can be observed through the telescope (10). The optical path adjustment of the optical lever measuring device can be rapidly finished through a collimation effect of the laser light.

Description

Optical lever measurement mechanism with laser sight

One, technical field

The utility model patent relates to a kind of optical lever measurement mechanism that tiny length changes, especially a kind of optical lever measurement mechanism that laser sight has been installed measured.

Two, background technology

The polished rod bar is a kind of experimental provision that tiny length changes of measuring, and is usually used in pulling method and measures in the experiment measurings such as linear expansion coefficient of Young modulus wiry and metal bar.The optical lever measurement mechanism mainly is made of optical lever, telescope chi group.Wherein, optical lever is made of level crossing and a T shape base with three point foots, and telescope chi group also claims Telescope, mainly is made of telescope and scale, and level crossing and telescope and scale consist of the opticator of optical lever measurement mechanism.Before experiment measuring, need to regulate opticator, namely carry out optical path adjusting, with optical path adjusting to clearly observe the state of scale imaging in level crossing in telescope.Existing optical lever measurement mechanism exists deficiency aspect optical path adjusting, the skill that its optical path adjusting action need is certain, and for the beginner, operation easier is very large.Chinese patent ZL 200720104171.4 discloses the utility model patent that a kind of name is called " with the Young's modules instrument device of laser sight ", proposes laser sight is installed on lens cone for telescope, and laser beam arrives scale after flat mirror reflects.This laser sight requires the laser beam alignment scale after laser beam should the alignment surface mirror reflects again, and its operation still has certain difficulty; In addition because its laser beam not with telescopical optical axis coincidence, so there is certain deviation in its laser aiming.

Three, summary of the invention

The purpose of this utility model is to provide a kind of new optical lever measurement mechanism with laser sight, and it has overcome the shortcoming of prior art, make the optical path adjusting of optical lever become intuitively, simply, easy operating.

The scheme that the utility model solves its technical matters is that a laser instrument is installed on the level crossing of optical lever as laser sight, laser instrument and level crossing are fixed together, the light beam that laser instrument sends is perpendicular to the minute surface of level crossing, along the direction of level crossing centre normal or be parallel to this normal direction; The aiming point mark of laser sight is drawn on the web member of the telescope of telescope chi group and scale, is positioned on the perpendicular bisector of the midpoint of position of telescope point and position of rule point line or both lines.

Fig. 1 is laser sight principle of work schematic diagram.Laser instrument 5 is installed on the back side of level crossing 3, laser beam 21 is penetrated by the centre normal of aperture 9 along level crossing 3, the line that position of telescope point 17 and position of rule point are 18 two is parallel to the minute surface of level crossing 3, the first aiming point 22 is the position of laser aiming, this position is the mid point of position of telescope point 17 and position of rule point 18, when laser beam 21 was aimed at the first aiming point 22, as shown in Figure 1, incident ray 19 necessarily satisfied reflection law with reflection ray 20.Namely can see the picture of scale 11 from telescope 10.

The utility model is comprised of optical lever 1 and telescope chi group 2 two parts with laser sight, optical lever 1 with laser sight is comprised of level crossing 3, T shape base 4, laser instrument 5, battery case 6, flexible circuit conductor 7, telescope chi group 2 is comprised of telescope 10, telescope base 14, scale 11, web member 12, support 16, it is characterized in that, described laser instrument 5 is installed on level crossing 3, and the beam direction that laser instrument 5 sends is perpendicular to level crossing 3 minute surfaces; The telescope base 14 of described telescope 10 is fixed in web member 12 1 sides, and scale 11 is fixed in web member 12 opposite sides, and aiming point mark 15 is drawn on web member 12.

Described laser instrument 5 is installed on level crossing 3 centers, the back side, and an aperture 9 is arranged at the center of level crossing 3, and laser beam 21 penetrates along level crossing 3 normal directions through aperture 9; The position of aiming point mark 15 is positioned on the first aiming point 22, and the first aiming point 22 is the mid point of position of telescope point 17 with position of rule point 18 both lines.

Described laser instrument 5 is installed on the level crossing coboundary, and the laser beam direction is parallel to the normal direction of level crossing 3; Described aiming point mark 15 is positioned on the second aiming point 23, and the second aiming point 23 is directly over the first aiming point 22, and both distances equal level crossing 3 centers to the distance of the light beam of laser instrument 5.

Described laser instrument 5 adopts semiconductor laser or laser diode, and battery case 6 is connected to its power supply through flexible circuit conductor 7 and laser instrument 5, and battery case 6 is controlled opening and closing of laser instrument 5 with switch 8.

The invention has the beneficial effects as follows: when using the utility model to carry out optical path adjusting, operation is directly perceived, step is clear, be easy to grasp; Semiconductor laser used, battery case etc. are with low cost, are easy to apply.

Four, description of drawings

Fig. 1 is the principle of work schematic diagram of laser sight;

Fig. 2 is an example with the optical lever of laser sight;

Fig. 3 is another each and every one example with the optical lever of laser sight;

Fig. 4 is an example of telescope chi group;

Fig. 5 is another example of telescope chi group;

Fig. 6 is that the aiming point mark is drawn position view.

In figure, each label is respectively: 1. with the optical lever of laser sight, and 2. telescope chi group, 3. level crossing, 4.T shape base, 5. laser instrument, 6. battery case, 7. flexible circuit conductor, 8. switch, 9. aperture, 10. telescope, 11. scales, 12. web members, 13. carriage, 14. telescope bases, 15. aiming point marks, 16. support, 17. the position of telescope point, 18. position of rule points, 19. incident raies, 20. reflection ray, 21. laser beam, 22. first aiming point, 23. second aiming point, 24. the vertical rotation axle, 25. angle of pitch set screw.

Five, embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is illustrated.

Fig. 2 is an example with the optical lever of laser sight, it is made of level crossing 3, T shape base 4, laser instrument 5, battery case 6, it is characterized in that: an aperture 9 is made a call at the center of level crossing 3, laser instrument 5 is fixed in the back side of level crossing 3, laser beam is penetrated by aperture 9, the laser beam perpendicular direction that laser instrument 9 sends is in the minute surface of level crossing 3, also namely along the centre normal direction of level crossing 3; Laser instrument 5 is its power supply by battery case 6 through flexible circuit conductor 7, controls opening and closing of laser instrument with switch 8 on battery case 7.

Fig. 3 is another example with the optical lever of laser sight, and it is made of level crossing 3, T shape base 4, laser instrument 5, battery case 6.Laser instrument 5 is fixed in the edge of level crossing 3 directly over level crossing 3, the beam direction that laser instrument 5 sends also namely is parallel to the centre normal of level crossing 3 perpendicular to the minute surface of level crossing 3; Laser instrument is its power supply by battery case 6 through flexible circuit conductor 7, controls opening and closing of laser instrument with switch 8 on battery case 6.

Can find out, example shown in Figure 3 is actually the result of the translation that in example shown in Figure 2, laser instrument 5 made progress.As long as with the position of the aiming point mark 15 also same distance of translation upwards, the laser aiming effect of example shown in Figure 3 is identical with Fig. 2.

An example of the telescope chi group that Fig. 4 is, it mainly is made of telescope 10, scale 11, web member 12, support 16, telescope 10 is fixed in a side of web member 12 by the vertical rotation axle 24 on telescope base 14, scale 11 is fixed in the opposite side of web member 12.The position angle of telescope 10 is adjusted by vertical rotation axle 24, the angle of pitch is adjusted by angle of pitch set screw 25, and the direction adjustment of telescope 10 is independently, when adjusting the direction of telescope 10, position of rule is unaffected, and web member 12 does not rotate with the direction adjustment of telescope 10 yet.

Another example of the telescope chi group that Fig. 5 is, it mainly is made of telescope 10, scale 11, web member 12, carriage 13, support 16, telescope 10 is fixed in a side of web member 12 through telescope base 14, scale 11 is fixed in the opposite side of web member 12, and web member 12 is held by carriage 13 and is fixed on support 16; Web member 12 can rotate take support 16 as axle, and to adjust the position angle of telescope 10, the angle of pitch of telescope 10 is adjusted by angle of pitch set screw 25 (not drawing in Fig. 5).

Fig. 6 is that the aiming point mark is drawn position view, when drawing aiming point mark 15 on web member 12, should satisfy relation shown in Figure 6.Position of telescope point 17 is the first aiming point 22 with the mid point of position of rule point 18 lines, and it is the drafting position of the aiming point mark 15 of optical lever example with laser sight shown in Figure 2; The second aiming point 23 is directly over the first aiming point 22, it is the drafting position of the aiming point mark 15 of optical lever example with laser sight shown in Figure 3, and the distance of the second aiming point 23 to first aiming point 22 equals the center of the level crossing 3 in Fig. 3 to the distance of the laser beam of laser instrument 5.Here, once position of telescope point 17 and position of rule point 18 are described again, as shown in Figure 1, in the horizontal plane at telescope 10 optical axis places, the central point in the cross section of rear sight 11 is position of rule point 18, and position of telescope point 17 in two kinds of situation, and in telescope chi group shown in Figure 4, position of telescope point 17 is the intersection point of the axis of the optical axis of telescope 10 and vertical rotation axle 24; In telescope chi group shown in Figure 5, the intersection point of the vertical line that position of telescope point 17 is done to the optical axis of telescope 10 for position of rule point 18, strict says, in this case, do not satisfy relation shown in Figure 1, still, during due to experiment measuring, the distance of position of telescope point 17 and position of rule point 18 so also just satisfies relation shown in Figure 1 approx less than the length of incident ray 19 or reflection ray 20.

Claims

1. optical lever measurement mechanism with laser sight, formed by optical lever (1) and telescope chi group (2) two parts with laser sight, with the optical lever (1) of laser sight by level crossing (3), T shape base (4), laser instrument (5), battery case (6), flexible circuit conductor (7) forms, telescope chi group (2) is by telescope (10), telescope base (14), scale (11), web member (12), support (16) forms, it is characterized in that, described laser instrument (5) is installed on level crossing (3), the beam direction that laser instrument (5) sends is perpendicular to level crossing (3) minute surface, the telescope base (14) of described telescope (10) is fixed in web member (12) one sides, and scale (11) is fixed in web member (12) opposite side, and aiming point mark (15) is drawn on web member (12).

2. the optical lever measurement mechanism with laser sight according to claim 1, it is characterized in that, described laser instrument (5) is installed on level crossing (3) center, the back side, at the center of level crossing (3), an aperture (9) is arranged, laser beam (21) penetrates along level crossing (3) normal direction through aperture (9); The position of aiming point mark (15) is positioned on the first aiming point (22), and the first aiming point (22) is the mid point of position of telescope point (17) and both lines of position of rule point (18).

3. the optical lever measurement mechanism with laser sight according to claim 1, is characterized in that, described laser instrument (5) is installed on the level crossing coboundary, and the laser beam direction is parallel to the normal direction of level crossing (3); Described aiming point mark (15) is positioned on the second aiming point (23), the second aiming point (23) is directly over the first aiming point (22), and both distances equal level crossing (3) center to the distance of the light beam of laser instrument (5).

4. the described optical lever measurement mechanism with laser sight of any one according to claim 1 to 3, it is characterized in that, described laser instrument (5) adopts semiconductor laser or laser diode, battery case (6) is connected to its power supply through flexible circuit conductor (7) and laser instrument (5), and battery case (6) is controlled opening and closing of laser instrument (5) with switch (8).