CN216717352U - Theodolite backward observation device - Google Patents
Theodolite backward observation device Download PDFInfo
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- CN216717352U CN216717352U CN202220109725.4U CN202220109725U CN216717352U CN 216717352 U CN216717352 U CN 216717352U CN 202220109725 U CN202220109725 U CN 202220109725U CN 216717352 U CN216717352 U CN 216717352U
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Abstract
The utility model discloses a theodolite backward observation device which is characterized by comprising a steering base, a first mirror tube, a steering mirror tube, a second mirror tube and an eyepiece part which are sequentially connected; the steering base is used for being connected with the theodolite telescope, and a steering end lens and a first steering lens are arranged in the steering base; a first lens group is arranged in the first lens tube; a second steering lens is arranged in the steering lens tube; a second lens group is arranged in the second lens tube, and an ocular lens group is arranged in the ocular part; the extending direction of the first tube is perpendicular to the extending direction of the second tube, and the extending direction of the first tube is also perpendicular to the axis direction of the theodolite telescope. The theodolite-based portable theodolite instrument is simple in structure and principle, low in cost, light in weight, convenient to carry, simple to use and operate, free of additional modification on the theodolite and free of damage to the instrument under the condition of correct use.
Description
Technical Field
The utility model belongs to the technical field of engineering measurement, and particularly relates to a backward observation device loaded on a theodolite telescope, which is used for theodolite measurement personnel to carry out backward observation.
Background
The theodolite is a measuring instrument for measuring horizontal angles and vertical angles designed according to an angle measuring principle, and when the theodolite is used, a sighting telescope needs to be aligned to a target and then the horizontal angles and the vertical angles measured by the instrument are read.
Under the technical conditions of the existing engineering measurement, the theodolite is used for forward observation, namely, three points of an observer, the theodolite and a target measuring point are sequentially on the same straight line, and the theodolite is positioned between the observer and the target measuring point. However, when the measuring station (where the observer is located) is located in a near-air or near-water surface, the measuring personnel is limited by environmental conditions, the target measuring point cannot be looked at by adopting the traditional method, and at the moment, the measuring point can only be used as a target observation point but not as the measuring station, so that the use of the measuring point is limited, and the precision of the whole deformation measuring system is further influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the utility model provides a theodolite backward observation device, which has the following specific technical scheme.
A theodolite backward observation device is characterized by comprising a steering base, a first lens tube, a steering lens tube, a second lens tube and an eyepiece part which are sequentially connected; the steering base is used for being connected with the theodolite telescope, and a steering end lens and a first steering lens are arranged in the steering base; a first lens group is arranged in the first lens tube; a second steering lens is arranged in the steering lens tube; a second lens group is arranged in the second lens tube, and an ocular lens group is arranged in the ocular part;
the extending direction of the first tube is perpendicular to the extending direction of the second tube, and the extending direction of the first tube is also perpendicular to the axis direction of the theodolite telescope.
By adopting the technical scheme, light rays enter the theodolite telescope, sequentially pass through the steering base, the first lens tube, the steering lens tube and the second lens tube to reach the eyepiece part, and the visual line direction of the theodolite telescope is approximately turned by 180 degrees, so that the aim and observation of a target point on the back of the standing side of an observer are realized.
Further, the angle between the axis of the turning end lens and the axis of the first turning optic is 45 °.
Further, the included angle between the axis of the first lens group and the axis of the second turning lens is 45 degrees. The first steering lens and the second steering lens are respectively used for turning the light path by 90 degrees.
Furthermore, one end of the first mirror tube is fixedly connected with the steering base, and the other end of the first mirror tube is detachably connected with the steering mirror tube; the steering base is provided with a buckle used for being connected with a telescope of the theodolite. The steering base is detachably connected with the telescope of the theodolite through the buckle, the steering base is fixedly connected with the first mirror tube, the assembly time of the backward observation device is favorably shortened, and the observation efficiency is improved. Preferably, after the first mirror tube is connected with the steering mirror tube, the steering mirror tube can rotate relative to the axis of the first mirror tube. The advantage of setting up like this lies in, according to the difference of observer's height, can adjust the height of eyepiece portion through the rotation of turning to mirror tube (second mirror tube) around first mirror tube to satisfy the observer demand of different heights.
Furthermore, one end of the second lens tube is fixedly connected with the steering lens tube, and the other end of the second lens tube is in threaded connection with the ocular part. The second mirror tube is fixedly connected with the steering mirror tube, so that the assembly time of the backward observation device is reduced, the whole backward observation device can be roughly disassembled into two parts which take the first mirror tube as a main part and the second mirror tube as a main part when being stored, and the assembly of the backward observation device can be completed only by connecting the steering mirror tube with the first mirror tube during use, so that the installation is very simple and convenient. The second lens tube is in threaded connection with the ocular part, and the connection length of the second lens tube and the ocular part can be adjusted by rotating the ocular part so as to achieve the purpose of focusing.
The utility model carries out approximately 180-degree steering on the sight direction of the theodolite telescope, thereby realizing the aim of aiming and observing a target point which is back on the side where an observer stands; a series of refraction lenses are arranged in the backward observation device according to the theodolite imaging rule, so that the forward and backward directions and the proper size of the visual image are kept, and the visual image can be compatible with a theodolite telescope imaging system and can be perfectly butted. The theodolite-based portable theodolite instrument is simple in structure and principle, low in cost, light in weight, convenient to carry, simple to use and operate, free of additional modification on the theodolite and free of damage to the instrument under the condition of correct use.
Drawings
FIG. 1 is a schematic view of a theodolite back view assembly;
FIG. 2 is a schematic diagram of the internal structure of the theodolite back observation assembly;
FIG. 3 is a view of the eyepiece portion of the theodolite telescope;
fig. 4 is a schematic diagram of the use state of the theodolite back observation assembly.
In the figure: 1-a steering base, 11-a buckle, 12-a steering end lens, 13-a first steering lens, 2-a first lens tube, 21-a first lens group, 3-a steering lens tube, 31-a second steering lens, 4-a second lens tube, 41-a second lens group, 5-an eyepiece part, 51-an eyepiece part lens group, 6-a theodolite telescope, 61-a theodolite eyepiece, 62-a theodolite eyepiece interface, 7-a wave wall, 8-a dam crest and 9-a downstream side measuring point.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in fig. 1-2, the theodolite back observation assembly mainly includes a turning base 1, a turning end lens 12, a first turning lens 13, a first lens tube 2, a first lens set 21, a turning lens tube 3, a second turning lens 31, a second lens tube 4, a second lens set 41, an eyepiece portion 5 and an eyepiece portion lens set 51.
The steering base 1, the first lens tube 2, the steering lens tube 3, the second lens tube 4 and the ocular part 5 are connected in sequence; the steering base 1 is used for being connected with the theodolite telescope 6, and a steering end lens 12 and a first steering lens 13 are arranged in the steering base 1; a first lens group 21 is arranged in the first lens tube 2; a second steering lens 31 is arranged in the steering lens tube 3; a second lens group 41 is arranged in the second lens tube 4, and an ocular part lens group 51 is arranged in the ocular part 5; the included angle between the axis of the turning end lens 12 and the axis of the first turning mirror 13 is 45 degrees, and the included angle between the axis of the first lens group 21 and the axis of the second turning mirror 31 is 45 degrees;
the extending direction of the first lens tube 2 is perpendicular to the extending direction of the second lens tube 4, and the extending direction of the first lens tube 2 is also perpendicular to the axial direction of the theodolite telescope 6.
Wherein, the steering base 1, the first lens tube 2, the steering lens tube 3, the second lens tube 4 and the ocular part 5 are made of stainless steel materials; the turning end lens 12, the first turning lens 13, the first lens group 21, the second turning lens 31, the second lens group 41, and the eyepiece lens portion lens group 51 are formed by processing optical resin lenses; the steering base 1, the first lens tube 2, the steering lens tube 3, the second lens tube 4 and the ocular part 5 are reserved with clamping grooves for embedding and fixing lenses and steering lenses (reflecting lenses).
In this embodiment, a suave LT402L electronic theodolite is used as a surveying instrument, and the telescope 6 is shown in fig. 3. This theodolite eyepiece 61 is connected with theodolite eyepiece interface 62 through the buckle, and the backward observation subassembly of configuration also is corresponding to be provided with the buckle of the same model.
The buckle type, the lens magnification factor and the structure size of each component of the component are determined according to the used theodolite object before processing, and then the component structure is cast according to the determined parameters. And the casting piece is a half of the structure, a clamping groove for placing the lens and the reflector is reserved, and after the casting is finished, the processed lens and the processed reflector are placed in corresponding parts and then the half components are welded together. And finally, all the sub-structures are spliced, wherein the steering base 1 and the first mirror tube 2 are fixedly connected, the first mirror tube 2 and the steering mirror tube 3 are connected in a clamping sleeve manner, the steering mirror tube 3 can rotate around the axis of the first mirror tube 2, the steering mirror tube 3 and the second mirror tube 4 are fixedly connected, and the second mirror tube 4 and the ocular part 5 are in threaded connection, so that all the processing work is finished.
During observation, the light path is reflected twice by the first steering lens 13 and the second steering lens 31, the advancing direction is reversed by 180 degrees, the forward and reverse directions and the size of the video image are adjusted through the first lens set 21, the second lens set 41 and the ocular lens set 51, the ocular lens 5 is in threaded connection with the second lens tube 4, and the connection length can be adjusted through rotation so as to achieve the purpose of focusing.
In the deformation monitoring of a certain hydropower station, observation points are respectively arranged on the upstream side slope, the downstream side slope and the dam crest of the retaining dam, and the dam crest measurement points are arranged on the upstream surface wave wall 7, as shown in fig. 4. In the conventional observation, the measuring point at the wave wall 7 can only be used as a target measuring point, or a person stands on a dam after the instrument is erected to observe the upstream measuring point, and cannot observe the downstream measuring point 9. To solve this problem, the backward observation component of the present application is introduced to perform auxiliary observation.
When the device works, an observer stands at one side of a wave wall dam, a Su Yi LT402L type electronic theodolite is erected on a measuring point on a wave wall 7, and after fastening and leveling, the target measuring point can be observed. When observing the target station located on the downstream side, the backward observation component of the present embodiment can be employed. The specific use mode is as follows: the theodolite eyepiece 61 is taken off from the theodolite eyepiece interface 62 at first, and the buckle 11 facing away from the observation assembly is aligned with the groove on the theodolite eyepiece interface 62 and is put into and clamped fixedly, namely the assembly is installed. The measurer observes a scene back to the observer from the ocular part 5, adjusts the definition of an object image by rotating the ocular part 5, finds a target measuring point, and then starts observation.
After whole measurement operation is accomplished, will turn to base 1 and dismantle from the theodolite to with first microscope tube 2 and the separation of turning to microscope tube 3, can accomodate the subassembly of surveing dorsad.
The embodiments of the present invention are described above with reference to the drawings, and the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A theodolite backward observation device is characterized by comprising a steering base (1), a first lens tube (2), a steering lens tube (3), a second lens tube (4) and an ocular part (5) which are connected in sequence; the steering base (1) is used for being connected with the theodolite telescope (6), and a steering end lens (12) and a first steering lens (13) are arranged in the steering base (1); a first lens group (21) is arranged in the first lens tube (2); a second steering lens (31) is arranged in the steering lens tube (3); a second lens group (41) is arranged in the second lens tube (4), and an ocular lens group (51) is arranged in the ocular part (5);
the extending direction of the first lens tube (2) is perpendicular to the extending direction of the second lens tube (4), and the extending direction of the first lens tube (2) is also perpendicular to the axis direction of the theodolite telescope (6).
2. Theodolite back sighting device according to claim 1, characterized in that the angle between the axis of the turning end lens (12) and the axis of the first turning mirror (13) is 45 °.
3. Theodolite back sighting device according to claim 1, characterised in that the angle between the axis of the first lens group (21) and the axis of the second turning optic (31) is 45 °.
4. The theodolite back observation device according to claim 1, wherein one end of the first mirror tube (2) is fixedly connected with the steering base (1), and the other end is detachably connected with the steering mirror tube (3); the steering base (1) is provided with a buckle (11) used for being connected with the theodolite telescope (6).
5. A theodolite back observation device according to claim 4, characterized in that the steering tube (3) can be turned in relation to the axis of the first tube (2) after the first tube (2) has been connected to the steering tube (3).
6. A theodolite back observation device according to claim 5, characterized in that one end of the second mirror tube (4) is fixedly connected with the steering mirror tube (3) and the other end is in threaded connection with the eyepiece portion (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220109725.4U CN216717352U (en) | 2022-01-17 | 2022-01-17 | Theodolite backward observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220109725.4U CN216717352U (en) | 2022-01-17 | 2022-01-17 | Theodolite backward observation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216717352U true CN216717352U (en) | 2022-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220109725.4U Active CN216717352U (en) | 2022-01-17 | 2022-01-17 | Theodolite backward observation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216717352U (en) |
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2022
- 2022-01-17 CN CN202220109725.4U patent/CN216717352U/en active Active
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