CN213336135U

CN213336135U - Theodolite support

Info

Publication number: CN213336135U
Application number: CN202022782363.9U
Authority: CN
Inventors: 胡鑫康; 王文通; 李佳容; 宋瑞萌; 魏润杰; 侯睿轩
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-06-01
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a theodolite support, which comprises a base, a first support and a second support, wherein the upper end surface of the base is provided with a concave lens, a first through hole is formed from the upper end surface to the lower end surface of the first support, and a second through hole is formed from the upper end surface to the lower end surface of the second support; the first support is positioned above the base, the upper end surface of the second support is positioned above the first support, and the first through hole and the second through hole are communicated and are positioned above the concave lens together; the upper end surface of the base is connected with the lower end surface of the first support through at least two adjusting screws, and the at least two adjusting screws are uniformly distributed along the circumferential direction of the first support; the second support is movably connected with the first support, and the second support can only move along the radial direction of the second through hole and rotate around the axial direction of the second through hole; the side walls of the first support and the second support are respectively provided with a first level gauge and a second level gauge. The utility model discloses make the process of erectting of theodolite more convenient, practice thrift the erection time, improved the speed of erectting.

Description

Theodolite support

Technical Field

The utility model belongs to the technical field of the measuring instrument, concretely relates to theodolite support.

Background

Theodolites are a widely used measurement tool in engineering activities and their use typically includes leveling, centering, aiming and reading. Because flattening and centering can influence each other, so in the in-process of erectting the theodolite, need constantly carry out flattening, centering, rebalance, recentering. After multiple adjustments, it can be mounted flat in a fixed position. That is to say, flattening and centering interact for the erection process need cycle many flattening and centering operation can only be established the instrument flattening in suitable position, and erection process operation is loaded down with trivial details, too the time-wasting, erects slowly.

The improvement of theodolite at the present stage focuses on improving the stability of the theodolite and the use of the gyrotheodolite, and the improvement of the erection speed of the theodolite is little related. For the traditional theodolite, the use effect is quite ideal, and the defect is that the erection process takes too much time, so that the urgent need is to find a structure capable of realizing quick erection.

Disclosure of Invention

To the technical problem who exists among the prior art, the utility model provides a theodolite support for the process of erectting of theodolite is more convenient, practices thrift the erection time, has improved the speed of erectting.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a theodolite support comprises a base, a first support and a second support, wherein a concave lens is arranged on the upper end face of the base, a first through hole is formed from the upper end face to the lower end face of the first support in a penetrating manner, and a second through hole is formed from the upper end face to the lower end face of the second support in a penetrating manner; the first support is located above the base, the upper end face of the second support is located above the first support, the first through hole and the second through hole are communicated and located above the concave lens together, and the upper end face of the second support is used for placing a theodolite; the upper end surface of the base is connected with the lower end surface of the first support through at least two adjusting screws, and the at least two adjusting screws are uniformly distributed along the circumferential direction of the first support; the second support is movably connected with the first support, and the second support can only move along the radial direction of the second through hole and can only rotate around the axial direction of the second through hole; and the side walls of the first support and the second support are respectively provided with a first level gauge and a second level gauge.

Furthermore, the first support is cylindrical, and a first annular groove is formed in the side wall of the first through hole along the circumferential direction of the first through hole; the second support comprises a first unit body and a second unit body which are cylindrical respectively, the diameter of the first unit body is smaller than that of the first support, the diameter of the first unit body is larger than that of the first through hole, the diameter of the first unit body is smaller than that of the second unit body, the upper end face of the first unit body is integrally connected with the lower end face of the second unit body, and a second annular groove is formed in the side wall of the first unit body along the circumferential direction of the first unit body; the first unit body is inserted into the first through hole, the part between the lower end surface of the second annular groove and the lower end surface of the first unit body extends into the first annular groove, and the lower end surface of the first unit body is in contact with the lower end surface of the first annular groove; the portion between the upper end face of the first annular groove and the upper end face of the first support extends into the second annular groove.

Furthermore, the upper end face of the first annular groove is provided with a first limiting part along the annular direction, and the lower end face of the second annular groove is provided with a second limiting part along the annular direction.

Further, the axis of the first through hole coincides with the axis of the first support, and the axes of the first unit body, the second unit body and the second through hole coincide.

Further, the base is a cylinder, and the axis of the concave lens coincides with the axis of the base.

Further, the first level is a circular level and the second level is a pipe level.

Furthermore, the upper end face of the base and the lower end face of the first support are evenly distributed with three adjusting screws.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model provides a pair of theodolite support when using, through revolving the levelness of twisting the first support of regulation screw and second support, first spirit level and second spirit level on the lateral wall of the first support of cooperation and second support, when the bubble of observing first spirit level and second spirit level all is in spirit level central authorities, explains being in the horizontality of first support and second support. Because the second support is movably connected with the first support, and the second support can only move along the radial direction of the second through hole and rotate around the axial direction of the second through hole, when the first support and the second support are in a horizontal state, the second support only needs to move along the radial direction or rotate around the axial direction, namely, the leveling and the centering are not influenced, the first support and the second support are leveled by adjusting the screw, and the second support moves in the horizontal plane in the whole no matter how the second support moves in the centering process, so that the levelness of the second support is not influenced. In the process of erecting the theodolite, as long as it is not eccentric too big, only need erect a theodolite usually, carry out flattening and a centering, visible utilization the utility model discloses a behind the support for the process of erecting of theodolite is more convenient, and whole process of erecting will greatly reduce consuming time, and the speed of erecting will greatly improve.

Further, the utility model discloses a structural design of first support and second support and the cooperation connection relation of the two utilize the nested swing joint who has realized first support and second support each other of ring channel, design benefit, the reliability is high.

Furthermore, the upper end face of the first annular groove is provided with a first limiting portion in the annular direction, the lower end face of the second annular groove is provided with a second limiting portion in the annular direction, the first limiting portion and the second limiting portion are limited mutually, and reliability of the whole structure is guaranteed better.

Furthermore, the upper end face of the base and the lower end face of the first support are evenly provided with three adjusting screws, so that the leveling is quicker, and the adjusting precision is higher.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

Fig. 1 is a schematic perspective sectional view of a theodolite support of the present invention;

fig. 2 is a schematic perspective sectional view of a first support of a theodolite support according to the present invention;

fig. 3 is a schematic perspective sectional view of a second support of the theodolite support according to the present invention;

fig. 4 is a schematic view of a front plan structure of a theodolite support of the present invention;

fig. 5 is a schematic view of the front sectional plane structure of the theodolite support of the present invention.

In the figure: 1-a base; 2-a concave lens; 3-adjusting the helix; 4-a first support; 401 — a first via; 402-a first annular groove; 403-a first stop; 5-a second support; 501-a second through hole; 502-a first unit cell; 503-a second unit cell; 504-a second annular groove; 505-a second limit stop; 6-a first level; 7-second level.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As a specific embodiment of the present invention, as shown in fig. 1, 4 and 5, a theodolite support includes a base 1, a concave lens 2, an adjusting screw 3, a first support 4, a second support 5, a first level 6 and a second level 7.

The upper end face of the base 1 is provided with a concave lens 2, as a preferred embodiment, the base 1 is a cylinder, the axis of the concave lens 2 coincides with the axis of the base 1, of course, the base 1 can be a steel ring with the concave lens 2 embedded in the middle, and the shape of the steel ring is similar to that of the bottommost layer of a traditional theodolite base.

A first through hole 401 is formed from the upper end surface to the lower end surface of the first support 4 in a penetrating manner, and a second through hole 501 is formed from the upper end surface to the lower end surface of the second support 5 in a penetrating manner; first support 4 is located the top of base 1, and the up end of second support 5 is located the top of first support 4, and first through-hole 401 communicates and is located the top of concave lens 2 jointly with second through-hole 501, and the up end of second support 5 is used for placing the theodolite, and first through-hole 401 communicates and is located the top of concave lens 2 jointly with second through-hole 501, and the sight can see ground set point through the portion of alighting of theodolite when its purpose is in order to the centering. The upper end surface of the base 1 is connected with the lower end surface of the first support 4 through at least two adjusting screws 3, and the at least two adjusting screws 3 are uniformly distributed along the circumferential direction of the first support 4; as a preferred embodiment, three adjusting screws 3 are uniformly distributed on the upper end surface of the base 1 and the lower end surface of the first support 4. The adjusting screw 3 can adjust the height of the first support 4 and the second support 5 so that the first support 4 and the second support 5 are kept horizontal.

Second support 5 and first support 4 swing joint, and second support 5 can only follow the radial movement of second through-hole 501 and 360 degrees rotations in the axial around second through-hole 501, perpendicular sight can be in the arbitrary removal in a centre of a circle face when such structural design has guaranteed the centering, set up the point when only setting up the theodolite by this circular cover, alright in order no longer to remove the A-frame, only need remove second support 5 and can realize the centering. As a preferred embodiment, as shown in fig. 2, the first support 4 is a cylinder, a first annular groove 402 is formed in a side wall of the first through hole 401 along a circumferential direction of the first through hole 401, and more preferably, an axis of the first through hole 401 coincides with an axis of the first support 4. Referring to fig. 1 and 3, the second support 5 includes a first unit body 502 and a second unit body 503, which are cylindrical, respectively, a diameter of the first unit body 502 is smaller than a diameter of the first support 4, a diameter of the first unit body 502 is larger than a diameter of the first through hole 401, a diameter of the first unit body 502 is smaller than a diameter of the second unit body 503, an upper end surface of the first unit body 502 is integrally connected with a lower end surface of the second unit body 503, that is, an upper end surface of the first unit body 502 and a lower end surface of the second unit body 503 are integrally formed to form the second support 5, and more preferably, axes of the first unit body 502, the second unit body 503 and the second through hole 501 are coincident. As shown in fig. 3, the sidewall of the first unit body 502 is opened with a second annular groove 504 along the circumferential direction thereof. Referring to fig. 1 and 5, the first unit body 502 is inserted into the first through hole 401, a portion between a lower end surface of the second annular groove 504 and a lower end surface of the first unit body 502 extends into the first annular groove 402, a lower end surface of the first unit body 502 is in contact with a lower end surface of the first annular groove 402, and a portion between an upper end surface of the first annular groove 402 and an upper end surface of the first support 4 extends into the second annular groove 504, that is, the first annular groove 402 and the second annular groove 504 on the first support 4 and the second support 5 are nested with each other, so that the second support 5 and the first support 4 are movably connected, and the second support 5 can only move in a radial direction of the second through hole 501 and rotate around an axial direction of the second through hole 501.

In addition to the above-described embodiments, as a more preferable solution, as shown in fig. 2, a first stopper 403 is provided on an upper end surface of the first annular groove 402 in a circumferential direction, as shown in fig. 3, a second stopper 505 is provided on a lower end surface of the second annular groove 504 in a circumferential direction, and after the first annular groove 402 and the second annular groove 504 on the first support 4 and the second support 5 are nested with each other, the first stopper 403 and the second stopper 505 are stopped from each other, so that the connection reliability between the first support 4 and the second support 5 is ensured.

In the above-described embodiment, as shown in fig. 1, 4, and 5, the first level 6 and the second level 7 are provided on the side walls of the first holder 4 and the second holder 5, respectively. As a preferred embodiment, the first level 6 is a circular level for coarse level observation of the first pedestal 4, and the second level 7 is a pipe level for fine level observation of the first pedestal 4 and the second pedestal 5.

The base 1 is connected with a triangular support, a theodolite is installed on the upper end face of the second support 5, in the erection process, after the triangular support is erected, the adjusting screw 3 is adjusted while observing the first level 6 and the second level 7 until bubbles of the two levels are both in the center of the levels, and in the adjustment process, the second support 5 is rotated for a plurality of angles, so that the bubbles of the second level 7 are both in the center at each angle, and at the moment, the first support 4 and the second support 5 are both in a horizontal state; then, a vertical sight line is formed downwards through the collimation part of the theodolite, the second support 5 is moved to the sight line collimation station, and the centering is completed.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The theodolite support is characterized by comprising a base (1), a first support (4) and a second support (5), wherein a concave lens (2) is arranged on the upper end face of the base (1), a first through hole (401) is formed from the upper end face to the lower end face of the first support (4) in a through mode, and a second through hole (501) is formed from the upper end face to the lower end face of the second support (5) in a through mode; the first support (4) is located above the base (1), the upper end face of the second support (5) is located above the first support (4), the first through hole (401) is communicated with the second through hole (501) and is located above the concave lens (2) together, and the upper end face of the second support (5) is used for placing a theodolite; the upper end surface of the base (1) is connected with the lower end surface of the first support (4) through at least two adjusting screws (3), and the at least two adjusting screws (3) are uniformly distributed along the circumferential direction of the first support (4); the second support (5) is movably connected with the first support (4), and the second support (5) can only move along the radial direction of the second through hole (501) and rotate around the axial direction of the second through hole (501); the side walls of the first support (4) and the second support (5) are respectively provided with a first level gauge (6) and a second level gauge (7).

2. The theodolite support according to claim 1, wherein the first support (4) is a cylinder, and a first annular groove (402) is formed in the side wall of the first through hole (401) along the circumferential direction of the first through hole (401); the second support (5) comprises a first unit body (502) and a second unit body (503) which are cylindrical respectively, the diameter of the first unit body (502) is smaller than that of the first support (4), the diameter of the first unit body (502) is larger than that of the first through hole (401), the diameter of the first unit body (502) is smaller than that of the second unit body (503), the upper end face of the first unit body (502) is integrally connected with the lower end face of the second unit body (503), and a second annular groove (504) is formed in the side wall of the first unit body (502) along the circumferential direction of the side wall; the first unit body (502) is inserted into the first through hole (401), the part between the lower end surface of the second annular groove (504) and the lower end surface of the first unit body (502) extends into the first annular groove (402), and the lower end surface of the first unit body (502) is in contact with the lower end surface of the first annular groove (402); the portion between the upper end face of the first annular groove (402) to the upper end face of the first support (4) projects into the second annular groove (504).

3. The theodolite support according to claim 2, characterized in that the upper end face of the first annular groove (402) is provided with a first stop portion (403) in the circumferential direction, and the lower end face of the second annular groove (504) is provided with a second stop portion (505) in the circumferential direction.

4. Theodolite support according to claim 2, characterized in that the axis of said first through hole (401) coincides with the axis of said first support (4), the axes of said first elementary body (502), said second elementary body (503) and said second through hole (501) coinciding.

5. Theodolite support according to claim 1, characterized in that the base (1) is cylindrical, the axis of the concave lens (2) coinciding with the axis of the base (1).

6. Theodolite support according to claim 1, characterized in that the first level (6) is a round level and the second level (7) is a pipe level.

7. Theodolite support according to claim 1, characterized in that the upper end face of the base (1) and the lower end face of the first support (4) are provided with three adjusting screws (3) by uniform distribution.