Protective device for surveying and mapping engineering theodolite

Abstract

The utility model relates to the technical field of teaching tools, in particular to a protective device for a surveying and mapping engineering theodolite, which has the characteristic of improving practicability and comprises a base and a bottom plate, two sides of the base are respectively provided with a fixing plate, the middle of each fixing plate is provided with a first threaded hole, and two sides of the bottom plate are respectively provided with a plurality of second threaded holes. Grooves are formed in the periphery of the base, the grooves located in the front side and the rear side are rotationally connected with first supporting plates through rotating shafts, and the grooves located in the left side and the right side are rotationally connected with second supporting plates through rotating shafts. The upper portions of the second supporting plates are each provided with another groove, and the other grooves are rotationally connected with third supporting plates through rotating shafts.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a protective device for a theodolite in surveying and mapping engineering. Background Art

[0002] As we all know, the theodolite is a measuring instrument designed based on the principle of angle measurement for measuring horizontal and vertical angles. It is divided into optical theodolite and electronic theodolite, and is very common in the engineering field.

[0003] The patent with application number CN202120060239.3 discloses a protective device for a surveying and mapping engineering theodolite, including a protective cover main body, a through hole is provided on the top of the protective cover main body, and a protective cover is rotatably connected to one side of the top of the protective cover main body close to the through hole, a protective cavity is provided inside the protective cover main body, and two sliding grooves are symmetrically provided on the inner wall of the protective cavity, and the interiors of the two sliding grooves are both slidably connected with limit plates, and sliders are installed on the opposite sides of the two limit plates, and two springs are symmetrically fixedly connected on the opposite sides of the two sliders.

[0004] Although the device has a certain effect of improving the use efficiency, in order to facilitate the staff to work while standing, the theodolite often needs to be used on a support base, and the device does not have a device installed together with the support base, so it is not convenient to fix the device on the support base for use, and the practicality is not very good. Secondly, when the device is in use, the theodolite needs to be rotated to the upper part of the protective cover body for use. At this time, the theodolite is at a high place, and the overall center of gravity moves as the theodolite moves upward, thereby raising the position of the center of gravity. When using the device, the staff accidentally collides with the theodolite or is affected by other external forces, and it is easy to shake or even topple over. Therefore, the practicality is not very good and there is room for improvement. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a protective device for a theodolite in surveying and mapping engineering, which has the characteristic of improving practicability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for a surveying and mapping engineering theodolite, comprising a base and a bottom plate, fixing plates are respectively arranged on both sides of the base, a first threaded hole is arranged in the middle of several fixing plates, a second threaded hole is respectively arranged on both sides of the bottom plate, and all of them are threadedly connected by first bolts and the first threaded holes, grooves are respectively arranged around the base, several of the grooves located on the front and rear sides are rotatably connected to the first support plate through a rotating shaft, several of the grooves located on the left and right sides are rotatably connected to the second support plate through a rotating shaft, another groove is arranged on the upper part of several of the second support plates, several of the other grooves are rotatably connected to the third support plate through a rotating shaft, a third threaded hole is arranged on the front and rear parts of several of the third support plates, a fourth threaded hole is arranged on the upper part of several of the first support plates, and all of them are threadedly connected by the second bolts and the third threaded holes.

[0009] Furthermore, a card slot is provided on the upper portion of the base, and the theodolite body is card-connected thereto, and a gap is provided between the upper portion of the theodolite body and the plurality of third support plates.

[0010] Furthermore, the corners of the ends of the plurality of third support plates that are close to each other are all arranged in an arc shape, and the end surfaces of the ends of the plurality of third support plates that are close to each other are in contact with each other.

[0011] Furthermore, the corners of the lower end surfaces of the first support plates and the second support plates are all arranged in an arc shape, and a gap is arranged between the lower end surface of the groove.

[0012] Preferably, the exteriors of the first and second bolts are coated with an anti-corrosion coating.

[0013] Preferably, a plurality of support columns are provided at the lower portion of the base plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a protective device for theodolite in surveying and mapping engineering, which has the following beneficial effects:

[0016] The protective device for the surveying and mapping engineering theodolite, when the device needs to be installed on a base plate on a supporting column for installation and use, the base can be installed on the base plate by means of a first bolt and a threaded connection between the first threaded hole and the second threaded hole, thereby facilitating the use of the theodolite body by workers. When it is needed to be used on a flat ground or other object, the base only needs to be placed on the ground or other object, and then the second bolt is unscrewed, and the first supporting plate, the second supporting plate and the third supporting plate are rotated to a horizontal state and laid flat on the ground or other object, thereby preventing the center of gravity of the theodolite body from rising and causing instability, thereby improving practicality to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the cooperation of the base, the first support plate, the second support plate, etc. of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the first support plate, the second support plate and the third support plate after being opened;

[0020] Figure 4 For this utility model Figure 1 A schematic diagram of the structure with a partial enlargement shown in FIG.

[0021] In the figure: 1. base; 2. bottom plate; 3. fixing plate; 4. first threaded hole; 5. first bolt; 6. groove; 7. first support plate; 8. second support plate; 9. third support plate; 10. third threaded hole; 11. fourth threaded hole; 12. second bolt; 13. slot; 14. theodolite body; 15. support column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model is a protective device for a surveying and mapping engineering theodolite, comprising a base 1 and a bottom plate 2. A plurality of support columns 15 are arranged at the lower part of the bottom plate 2, and the bottom plate 2 is supported on the ground by the support columns 15. A card slot 13 is arranged at the upper part of the base 1, and a theodolite body 14 is carded thereon. The theodolite body 14 is carded in the card slot 13 of the base 1 by carding. Fixed plates 3 are arranged at both sides of the base 1, and first threaded holes 4 are arranged at the middle parts of the plurality of fixed plates 3. A plurality of second threaded holes are arranged at both sides of the bottom plate 2, and the plurality of second threaded holes are all threadedly connected to the first threaded holes 4 by first bolts 5. The base 1 is installed on the bottom by means of a threaded connection between the first bolt 5 and the first threaded hole 4 and the second threaded hole, so that the theodolite body 14 can be used on the bottom plate 2. Grooves 6 are respectively arranged around the base 1. Several grooves 6 located on the front and rear sides are rotatably connected to the first support plate 7 through a rotating shaft, and several grooves 6 located on the left and right sides are rotatably connected to the second support plate 8 through a rotating shaft. The corners of the lower end faces of the several first support plates 7 and the second support plates 8 are all arranged in an arc shape, and a gap is arranged between the lower end faces of the grooves 6 to prevent the first support plates 7 and the second support plates 8 from being at the bottom. When the seat 1 rotates in the groove 6, friction occurs with the inner wall of the groove 6. Another groove 6 is provided on the upper part of several second support plates 8. Several other grooves 6 are rotatably connected to the third support plate 9 through the rotating shaft. The third support plate 9 rotates on the second support plate 8. The front and rear parts of several third support plates 9 are provided with third threaded holes 10. The upper parts of several first support plates 7 are provided with fourth threaded holes 11, and they are all threadedly connected with the third threaded holes 10 through the second bolts 12. The third support plates 9 and the fourth threaded holes 11 are connected by the second bolts 12 and the third threaded holes 10. The first support plates 7 are fixedly installed together, thereby protecting the theodolite body 14. The edges and corners of the ends of the several third support plates 9 that are close to each other are all arranged in an arc shape to prevent the two third support plates 9 from rubbing against each other when rotating. The end surfaces of the ends of the several third support plates 9 that are close to each other are fitted together to improve the tightness between the two. The exteriors of the several first bolts 5 and the second bolts 12 are coated with an anti-corrosion coating to improve the anti-corrosion effect. A gap is arranged between the upper part of the theodolite body 14 and the several third support plates 9 to prevent the installation of the third support plates 9 from affecting the theodolite body 14.

[0024] To sum up, when the protective device for the surveying and mapping engineering theodolite is in use, if the staff needs to use the device for measurement, they can install the base 1 on the base plate 2, so that the first threaded hole 4 of the fixing plate 3 and the second threaded hole of the base plate 2 coincide with each other, screw on the first bolt 5, and then unscrew the second bolt 12 from the first support plate 7 and the third support plate 9, and rotate several first support plates 7, second support plates 8 and third support plates 9 to a horizontal or tilted downward state, and then use the theodolite body 14 to measure.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a theodolite in surveying and mapping engineering, characterized in that: The invention comprises a base (1) and a bottom plate (2), wherein fixing plates (3) are respectively arranged on both sides of the base (1), and a first threaded hole (4) is arranged in the middle of a plurality of the fixing plates (3), and a plurality of second threaded holes are respectively arranged on both sides of the bottom plate (2), and the second threaded holes are all threadedly connected to the first threaded hole (4) through a first bolt (5), and grooves (6) are respectively arranged around the base (1), and a plurality of the grooves (6) located on the front and rear sides are rotatably connected to the first support plate (7) through a rotating shaft, and a plurality of the grooves (6) located on the left and right sides are rotatably connected to the first support plate (7) through a rotating shaft. Each of the grooves (6) is rotatably connected to a second support plate (8) via a rotating shaft, a plurality of the second support plates (8) are each provided with another groove (6) on their upper parts, a plurality of the other grooves (6) are each rotatably connected to a third support plate (9) via a rotating shaft, a plurality of the third support plates (9) are each provided with a third threaded hole (10) at their front and rear parts, a plurality of the first support plates (7) are each provided with a fourth threaded hole (11) on their upper parts, and are each threadedly connected via a second bolt (12) and the third threaded hole (10).

2. A protective device for a surveying and mapping engineering theodolite according to claim 1, characterized in that: The upper part of the base (1) is provided with a card slot (13), and is card-connected with a theodolite body (14), and a gap is provided between the upper part of the theodolite body (14) and a plurality of third support plates (9).

3. The protective device for theodolite of surveying and mapping engineering according to claim 1, characterized in that: The corners of the ends of the plurality of third support plates (9) that are close to each other are all arranged in an arc shape, and the end surfaces of the ends of the plurality of third support plates (9) that are close to each other are in contact with each other.

4. The protective device for theodolite in surveying and mapping engineering according to claim 1, characterized in that: The corners of the lower end surfaces of the first supporting plates (7) and the second supporting plates (8) are all arranged in an arc shape, and a gap is arranged between the lower end surface of the groove (6).

5. The protective device for theodolite in surveying and mapping engineering according to claim 1, characterized in that: The exteriors of the plurality of first bolts (5) and second bolts (12) are coated with an anti-corrosion coating.

6. The protective device for theodolite in surveying and mapping engineering according to claim 1, characterized in that: A plurality of support columns (15) are arranged at the lower part of the bottom plate (2).

Images