Towing box staff structure

Abstract

The utility model relates to the technical field of box staff measurement, in particular to a heightened box staff structure. In order to solve the problems in the prior art that when the height difference of a local leveling area exceeds five meters, the workload of operators is large and the paying-off precision is low by adding a plurality of turning points for paying off, the utility model provides a novel heightened box staff structure which comprises a vertical column body, a plurality of supporting legs and a box staff, the supporting legs are distributed in the circumferential direction and fixedly supported on the lower portion of the vertical column body, a circular level bubble is arranged on the top end face of the vertical column body, and the box staff is vertically fixed to the vertical column body. The heightening box staff structure can meet the requirement for single leveling when the height difference of a local area exceeds five meters, turning point measurement is not needed, the labor intensity of operators is reduced, and the paying-off precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tower ruler measurement, in particular to a tower ruler structure. Background Art

[0002] Leveling is to use the horizontal line of sight provided by the level to directly measure the height difference between two points on the ground with the help of a level rod with divisions, and then calculate the elevation of the unknown point based on the elevation of the known point and the measured elevation difference. The tower ruler is one of the main tools in leveling. Early tower rulers were mostly made of wood, which was heavy and limited in length (usually 2m), making it inconvenient to carry. Later, they were gradually made of lightweight and high-strength materials such as aluminum alloy. They were in a tower-shaped retractable form, which was easy to pull out when used. The single elevation measurement range was greatly improved. The length was generally 5m, and it could be retracted when carried.

[0003] During construction, when the height difference of a local area in the leveling survey exceeds five meters, a five-meter measuring rod cannot meet the needs of a single measurement. The traditional method is to manually lift the measuring rod to meet the needs of a single measurement, but this method not only increases the labor intensity of the operators and has low measurement accuracy, but also cannot be achieved when the height difference is too high, such as when the height difference exceeds seven meters. The existing technology also adds multiple turning points to lay out the lines, but this method not only increases the workload of the operators, but also the cumulative error value of multiple turning points is large, resulting in low laying-out accuracy. Summary of the invention

[0004] In order to solve the problem that when the height difference of a local area in leveling measurement exceeds five meters, the prior art method of laying out by adding multiple turning points has a large workload for operators and low laying-out accuracy, a new tower ruler structure is provided.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] A tower ruler structure includes a vertical column, a plurality of supporting legs, and a tower ruler. The plurality of supporting legs are circumferentially distributed and fixedly supported on the lower part of the vertical column. A circular level bubble is provided on the top surface of the vertical column. The tower ruler is vertically fixed on the vertical column (it is well known to those skilled in the art that the tower ruler can be fixed on the vertical column by welding, bonding or bolting).

[0007] When in use, fix the supporting legs on the ground, and adjust the vertical column to make the circular level bubble centered to achieve the purpose of leveling the vertical column. Since the tower ruler is fixed on the vertical column, the leveling of the vertical column is equivalent to the leveling of the tower ruler. At this time, you can start measuring and laying out.

[0008] Furthermore, the top surface of the vertical column is less than 2m from the ground, which is convenient for operators to observe the circular level bubble. When the operators are short, they can step on a heightening pedal of appropriate height for observation.

[0009] Furthermore, a screw is coaxially fixed to the bottom end of the tower ruler, and an internal threaded hole matching the screw is provided at the center of the top end surface of the vertical column. The tower ruler and the vertical column are fixedly connected by threaded connection between the screw and the internal threaded hole, which facilitates the fixation of the tower ruler and the vertical column.

[0010] Furthermore, a protective circular groove is provided at the center of the top surface of the vertical column, the diameter of which is 10 mm larger than the diameter of the circumscribed circle of the tower ruler and is coaxially arranged with the circumscribed circle of the tower ruler, and the internal threaded hole is provided at the bottom of the protective circular groove. When the measurement is in windy weather, the tower ruler is not stable enough due to the high height of the tower ruler during measurement. The design of the protective circular groove increases the stability of the tower ruler, improves its measurement accuracy and the service life of the tower ruler.

[0011] Furthermore, each supporting leg is a telescopic structure, which is portable and applicable to a larger height difference range.

[0012] Furthermore, the overall shape of each supporting leg is a triangle with a narrow bottom end and a wide top end. Each supporting leg is arranged in an arc shape and the bottom ends of multiple supporting legs are arranged in a circle. This structural setting makes the overall tower scale structure more stable.

[0013] The beneficial effects of the utility model are as follows: the lifting tower ruler structure described in the utility model can meet the needs of single leveling when the height difference in the local area exceeds five meters, without the need for rotating point measurement, reducing the labor intensity of operators and improving the accuracy of line setting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings herein are incorporated into and constitute a part of the specification, showing embodiments consistent with the present utility model and, together with the description, serving to explain the principles of the present utility model.

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] In the figure: 1-vertical column, 2-support leg, 3-circular level bubble, 4-protective circular groove. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0019] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, a tower ruler structure includes a vertical column 1, a plurality of supporting legs 2, and a tower ruler. The plurality of supporting legs 2 are circumferentially distributed and fixedly supported on the lower part of the vertical column 1. A circular level bubble 3 is provided on the top surface of the vertical column 1. The tower ruler is vertically fixed on the vertical column 1 (it is well known to those skilled in the art that the tower ruler can be fixed on the vertical column 1 by welding, bonding or bolting).

[0023] When in use, fix the supporting legs 2 on the ground, and adjust the vertical column 1 so that the circular level bubble 3 is centered to achieve the purpose of leveling the vertical column 1. Since the tower ruler is fixed on the vertical column 1, the leveling of the vertical column 1 is equivalent to the leveling of the tower ruler. At this time, you can start measuring and laying out.

[0024] In specific implementation, the top surface of the vertical column 1 is less than 2m above the ground, which is convenient for operators to observe the circular level bubble 3. When the operators are short, they can step on a height-enhancing pedal of appropriate height for observation.

[0025] In specific implementation, a screw is coaxially fixed to the bottom end of the tower ruler, and an internal threaded hole matching the screw is provided at the center of the top end surface of the vertical column 1. The fixed connection between the tower ruler and the vertical column 1 is achieved through the threaded connection between the screw and the internal threaded hole, which facilitates the fixation of the tower ruler and the vertical column 1.

[0026] In specific implementation, a protective circular groove 4 is provided at the center of the top surface of the vertical column 1, the diameter of which is 10 mm larger than the diameter of the circumscribed circle of the tower ruler and is coaxially arranged with the circumscribed circle of the tower ruler, and an internal threaded hole is provided at the bottom of the protective circular groove 4. When the measurement is in windy weather, the tower ruler is not stable enough due to the high height of the tower ruler during measurement. The design of the protective circular groove 4 increases the stability of the tower ruler, improves its measurement accuracy and the service life of the tower ruler.

[0027] In specific implementation, each supporting leg 2 is a telescopic structure, which is portable and applicable to a larger height difference range.

[0028] In specific implementation, the overall shape of each support leg 2 is a triangle with a narrow bottom end and a wide top end. Each support leg 2 is arranged in an arc shape and the bottom ends of multiple support legs 2 are arranged in a circle. This structural setting makes the overall tower scale structure more stable.

[0029] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A tower structure, characterized in that: The utility model comprises a vertical column (1), a plurality of supporting legs (2), and a tower ruler, wherein the plurality of supporting legs (2) are distributed circumferentially and fixedly supported on the lower part of the vertical column (1), a circular level bubble (3) is provided on the top surface of the vertical column (1), and the tower ruler is vertically fixed on the vertical column (1).

2. A tower ruler structure according to claim 1, characterized in that: The top surface of the vertical column (1) is less than 2 m from the ground.

3. A tower scale structure according to claim 2, characterized in that: A screw rod is coaxially fixed to the bottom end of the tower ruler, and an internal threaded hole matching the screw rod is provided at the center of the top end surface of the vertical column (1).

4. A tower ruler structure according to claim 3, characterized in that: A protective circular groove (4) having a diameter 10 mm larger than the diameter of the circumscribed circle of the tower ruler and arranged coaxially with the circumscribed circle of the tower ruler is provided at the center of the top end surface of the vertical column (1), and an internal threaded hole is provided at the bottom of the protective circular groove (4).

5. A tower ruler structure according to claim 4, characterized in that: Each supporting leg (2) is a telescopic structure.

6. A tower ruler structure according to claim 5, characterized in that: The overall shape of each support leg (2) is a triangle with a narrow bottom end and a wide top end; each support leg (2) is arranged in an arc shape and the bottom ends of a plurality of support legs (2) are arranged in a circle.

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