CN215729082U

CN215729082U - Adjusting and positioning mechanism for optical instrument

Info

Publication number: CN215729082U
Application number: CN202122243169.8U
Authority: CN
Inventors: 张耀; 孟威
Original assignee: Jiangsu Jiayi Beike Optical Technology Co ltd
Current assignee: Jiangsu Jiayi Beike Optical Technology Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-01
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses an adjusting and positioning mechanism for an optical instrument, which belongs to the technical field of optical measuring instruments and comprises a support platform, wherein a groove is formed in the support platform, an installation table is arranged in the groove, two groups of arc-shaped plates are hinged to the bottom of the support platform, elongated slots are formed in the arc-shaped plates, an extension rod penetrating through the elongated slots in the two groups of arc-shaped plates is arranged at the bottom of the installation table, and a locking part used for limiting the relative movement of the two groups of arc-shaped plates and the extension rod is arranged on the extension rod. According to the utility model, the support platform is provided with the positioning mechanism capable of being quickly adjusted, the positioning mechanism is composed of two arc-shaped plates and the mounting platform, the whole mechanism is similar to a pan-tilt head, when the locking part is not locked, the mounting platform can be automatically adjusted under the action of gravity to keep the horizontal state, and the mounting is quickly fixed through the locking part, so that the leveling can be adjusted without adjusting the foot screw back and forth, and the mechanism is simpler, more convenient and high in efficiency.

Description

Adjusting and positioning mechanism for optical instrument

Technical Field

The utility model relates to the technical field of optical measuring instruments, in particular to an adjusting and positioning mechanism for an optical instrument.

Background

The optical instrument is composed of single or multiple optical devices. Optical instruments mainly fall into two main categories, one is an optical instrument for real image, such as a slide projector, a camera and the like; another type is virtual imaging optical instruments such as telescopes, microscopes, loupes, etc. The optical instrument is a very important composition category in the instrument industry, and is an indispensable tool for observation, test, analysis, control, recording and transmission in various fields of industrial and agricultural production, resource exploration, space exploration, scientific experiments, national defense construction and social life.

Theodolite is a measuring instrument designed according to the principle of goniometry for measuring horizontal and vertical angles, and is a mechanical part of a telescope, so that the telescope can point in different directions. The theodolite has two mutually perpendicular's pivot, in order to adjust the azimuth and the level of telescope, because the great reason of theodolite itself, generally need have the support when measuring, erect the support after, the theodolite need adjust through the three foot spiral of its bottom and make it keep the level, then can carry out accurate angular surveying, when three foot spiral adjusts, when certain side position is lower, need make a round trip to adjust two foot spirals that are close to this side and make the theodolite reach a horizontally state, this mode is adjusted the operation comparatively loaded down with trivial details, adjust time is longer.

SUMMERY OF THE UTILITY MODEL

In view of the above technical deficiencies, the present invention provides an adjusting and positioning mechanism for an optical instrument, wherein a mechanism functioning as a pan-tilt is disposed between the instrument and a support platform, and a positioning and fixing structure is disposed to facilitate and fix the instrument, thereby improving efficiency and facilitating operation.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides an adjusting and positioning mechanism for an optical instrument, which comprises a support platform, wherein a groove with an annular arc surface is formed in the support platform, an installation table is arranged in the groove and used for installing and fixing a theodolite, two groups of arc plates are hinged to the bottom of the support platform, the two groups of arc plates are perpendicular to the end surface projection of the support platform, the inner surfaces and the outer surfaces of the two groups of arc plates are arc surfaces, the diameters of the two groups of arc plates are different, elongated grooves are formed in the arc plates, an extending rod penetrating through the elongated grooves in the two groups of arc plates is arranged at the bottom of the installation table, and a locking part used for limiting the two groups of arc plates and the extending rod to move relatively is arranged on the extending rod.

Preferably, locking portion includes latch segment, spring, spacing ring and the ejector sleeve that sets gradually from the top along the extension rod, the spring all overlaps with the latch segment and locates on the extension rod, and the both ends of spring are connected with latch segment and spacing ring respectively, the internal diameter face of ejector sleeve is equipped with the internal thread, through internal thread and extension rod threaded connection, the top surface of latch segment falls into two sets of faces, is connected with the external diameter face of two sets of arcs respectively.

Preferably, the outer diameter surface of the arc-shaped plate and the top surface of the locking block are both subjected to sanding treatment.

Preferably, the outer surface of the push cylinder is connected with a plurality of push rods arranged along the radial direction of the push cylinder.

Preferably, the bottom of the extension rod is provided with a balancing weight.

Preferably, the two ends of the arc-shaped plate are hinged with the support platform through balls.

The utility model has the beneficial effects that: through setting up to a positioning mechanism that can quick adjustment on with supporting platform, this mechanism comprises two arcs and a mount table, and its whole is similar to a cloud platform, when locking portion is not locked state, can make the mount table keep the horizontality under the action of gravity automatically regulated, and the installation is through locking portion quick fixation to need not make a round trip to adjust the foot spiral and adjust the level, simple and convenient and efficient more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an adjusting and positioning mechanism for an optical instrument according to an embodiment of the present invention.

Fig. 2 is a schematic view of a semi-sectional structure of a stent platform.

FIG. 3 is a schematic view of a bracket platform half-section and a structural split at the bottom of the bracket platform.

Fig. 4 is an enlarged view of the part a in fig. 3.

Description of reference numerals: 1-support platform, 2-groove, 3-mounting table, 4-arc plate, 5-long groove, 6-extension rod, 7-locking part, 8-push rod, 9-balancing weight, 701-locking block, 702-spring, 703-limit ring and 704-push cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 protection scope of the present invention.

Example (b): as shown in figures 1-4, the utility model provides an adjusting and positioning mechanism for an optical instrument, which comprises a support platform 1, wherein a groove 2 with an annular arc surface, more specifically a spherical surface, is formed on the support platform 1, an installation table 3 is arranged in the groove 2, a connecting part is also arranged on the installation table 3 and is used for fixedly installing a theodolite, the connecting part can be fixed by adopting a clamping, clamping or bolt fixed connection mode, the bottom of the installation table 3 is matched with the groove 2 and slides on the groove, the contact surface of the installation table and the groove is provided with balls or smooth processing, the installation table 3 is used for installing the theodolite and is fixed, the bottom of the support platform 1 is hinged with two groups of arc plates 4, the two groups of arc plates 4 are perpendicular to the end surface projection of the support platform 1, the inner and outer surfaces of the two groups of arc plates 4 are arc surfaces, the diameters are different, the arc surfaces of the arc plates 3 are also spherical surfaces and are coincided with the center of the spherical surface of the groove 2, so that can rotate in step, elongated slot 5 has been seted up in the arc 4, the bottom of mount table 3 is equipped with the extension rod 6 that passes elongated slot 5 in two sets of arcs 4, mount table 3 and two sets of arcs 4 and extension rod 6 constitute a structure similar to the cloud platform, the effect of extension rod 6 mainly is to reduce the focus, so that it can keep the horizontality of mount table 3 automatically under the action of gravity, be equipped with the locking part 7 that is used for restricting two sets of arcs 4 and the relative movement of extension rod 6 on the extension rod 6, locking part 7 is mainly fixed after the automatic adjustment level, so that the level of theodolite is placed.

Further, locking portion 7 includes along the latch segment 701 that extension rod 6 from the top set gradually, spring 702, spacing ring 703 and ejector sleeve 704, spring 702 all overlaps with latch segment 701 and locates on extension rod 6, and the both ends of spring 702 are connected with latch segment 701 and spacing ring 703 respectively, spring 702's main effect is quick pulls away arc plate 4 with latch segment 701, ejector sleeve 704's inside diameter face is equipped with the internal thread, through internal thread and 6 threaded connection of extension rod, the position that extension rod 6 is located the bottom of spacing ring 703 sets up one end external screw thread, through external screw thread and internal thread threaded connection, latch segment 701's top surface falls into two sets of faces, be connected with the external diameter face of two sets of arc plates 4 respectively, the top surface through latch segment 701 carries out the stiction locking with the contact of arc plate 4.

Further, the outer diameter surface of the arc-shaped plate 4 and the top surface of the locking block 701 are subjected to sanding treatment, and the roughness of the surfaces of the arc-shaped plate and the locking block is improved through sanding treatment, so that the friction coefficient of static friction of contact between the arc-shaped plate and the locking block is increased, and the arc-shaped plate is more stable when being fixed.

Further, the outer surface of the push cylinder 704 is connected with a plurality of push rods 8 arranged along the radial direction of the push cylinder, and the push rods 8 are arranged to extend the arm of force, so that the rotation of the push cylinder 704 can be adjusted manually.

Further, the bottom of extension rod 6 is equipped with balancing weight 9, and balancing weight 9 mainly functions reduces the focus, and avoids extension rod 6 overlength inconvenient use.

Further, the two ends of the arc-shaped plate 4 are in ball hinge connection with the support platform 1, and the arc-shaped plate 4 does not rotate around the ball center of the arc-shaped plate 4, so that the arc-shaped plate cannot be attached to the hinge joint and needs to have a certain space gap to facilitate the rotation of the arc-shaped plate, and the common shaft cannot rotate well to set the axial direction of the shaft, so that the ball hinge connection is more convenient to set.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An adjusting and positioning mechanism for an optical instrument is characterized by comprising a support platform (1), the bracket platform (1) is provided with a groove (2) with an annular arc-shaped surface, the groove (2) is internally provided with an installation table (3), the installation table (3) is used for installing and fixing a theodolite, the bottom of the bracket platform (1) is hinged with two groups of arc-shaped plates (4), the two groups of arc-shaped plates (4) are perpendicular to the projection of the end surface of the bracket platform (1), the inner and outer surfaces of the two groups of arc plates (4) are arc surfaces with different diameters, the arc plates (4) are internally provided with elongated slots (5), the bottom of the mounting table (3) is provided with an extension rod (6) which passes through the long grooves (5) in the two groups of arc-shaped plates (4), and the extension rod (6) is provided with a locking part (7) for limiting the relative movement of the two groups of arc plates (4) and the extension rod (6).

2. The adjusting and positioning mechanism of claim 1, wherein the locking portion (7) comprises a locking block (701), a spring (702), a limiting ring (703) and a pushing cylinder (704) sequentially arranged along the extension rod (6) from top to bottom, the spring (702) and the locking block (701) are sleeved on the extension rod (6), two ends of the spring (702) are respectively connected with the locking block (701) and the limiting ring (703), an inner diameter surface of the pushing cylinder (704) is provided with an internal thread and is in threaded connection with the extension rod (6) through the internal thread, a top surface of the locking block (701) is divided into two groups of surfaces and is respectively connected with outer diameter surfaces of two groups of arc-shaped plates (4).

3. An adjusting and positioning mechanism for optical instruments as claimed in claim 2, characterized in that the outer diameter surface of the arc-shaped plate (4) and the top surface of the locking block (701) are frosted.

4. An adjusting and positioning mechanism for an optical instrument as set forth in claim 2, characterized in that a plurality of push rods (8) are connected to the outer surface of the push cylinder (704) in a radial direction thereof.

5. An adjusting and positioning mechanism for optical instruments as claimed in claim 1 or 2, characterized in that the bottom of the extension rod (6) is provided with a weight (9).

6. An adjusting and positioning mechanism for optical instruments as claimed in claim 1, characterized in that the two ends of the arc-shaped plate (4) are ball-hinged to the support platform (1).