CN216954331U - Ground crack dipperstick - Google Patents
Ground crack dipperstick Download PDFInfo
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- CN216954331U CN216954331U CN202220385021.XU CN202220385021U CN216954331U CN 216954331 U CN216954331 U CN 216954331U CN 202220385021 U CN202220385021 U CN 202220385021U CN 216954331 U CN216954331 U CN 216954331U
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- ruler
- telescopic
- rod body
- main rod
- pointer
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Abstract
The utility model discloses a ground crack measuring ruler, which comprises a length ruler and an angle ruler; the length ruler comprises a main rod body and a telescopic ruler, wherein a telescopic groove matched with the telescopic ruler is formed in the lower surface of the main rod body in an upward extending mode, scale marks are arranged on the telescopic ruler, a plurality of elastic pieces are arranged on the side face of the telescopic ruler along the length direction, and the telescopic ruler is embedded in the telescopic groove of the main rod body; the angle square comprises a round angle square and a pointer, the round angle square is fixedly arranged on the main rod body, the pointer is rotatably arranged on the main rod body, the rotating shaft line of the pointer is perpendicular to the round angle square and passes through the circle center of the round angle square, and the tail end of the pointer is provided with a load-bearing part which enables the pointer to keep vertical. Compared with the prior art, the ground fissure measuring scale measures relevant distance data through the length ruler, measures relevant angle data through the angle ruler simultaneously, and the distance data and the angle data are combined to calculate the opening distance and the lower wrong height of the ground fissure.
Description
Technical Field
The utility model relates to the technical field of geological disaster prevention and exploration, in particular to a ground crack measuring scale.
Background
The opening distance and the dislocation height of the ground fissure are basic elements of ground fissure investigation, and the opening distance and the dislocation height are the basis of deformation evolution characteristic analysis of landslide, ground subsidence and other geological disasters. Particularly, in the single landslide risk analysis, ground cracks need to be comprehensively and finely investigated, and deformation subareas of the landslide in the whole range are developed accordingly. When the scientific research personnel survey and measure in the field, generally directly measure ground crack opening distance and lower wrong distance through measuring tools such as tape measure or tape measure, but measuring tool's levelness and straightness that hangs down are difficult to guarantee, and measurement starting point and measurement terminal point are also difficult for maring, make the error of survey data great, influence the survey precision that becomes more meticulous, are unfavorable for developing of follow-up analysis work.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ground crack measuring scale aiming at the existing technical situation, which has the advantages of simple structure, portability, easy use and suitability for quickly measuring small ground cracks.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a ground crack measuring scale comprises a length scale and an angle scale;
the length ruler comprises a main rod body and a telescopic ruler, wherein a telescopic groove matched with the telescopic ruler is formed in the lower surface of the main rod body in an upward extending mode, scale marks are arranged on the telescopic ruler, a plurality of elastic pieces are arranged on the side surface of the telescopic ruler in the length direction, and the telescopic ruler is embedded into the telescopic groove of the main rod body;
the angle ruler comprises a round angle ruler and a pointer, the round angle ruler is fixedly arranged on the main rod body, the pointer is rotatably arranged on the main rod body, the rotating shaft line of the pointer is perpendicular to the round angle ruler and passes through the circle center of the round angle ruler, and the tail end of the pointer is provided with a load-bearing part which enables the pointer to keep vertical.
Furthermore, the lateral wall of the telescopic groove is provided with a limit groove along the length direction of the main rod body, and after the telescopic ruler is embedded in the telescopic groove, the elastic parts arranged on the telescopic ruler are all embedded in the limit groove.
Furthermore, the elastic piece is a spring piece.
Further, still include a plurality of length fixing chi, length fixing chi one end is equipped with first concatenation round pin, the other end is equipped with the first concatenation round pin and matches the first concatenation hole, the telescopic ruler is kept away from the main pole body one end and is equipped with the second concatenation hole the same with first concatenation hole.
Furthermore, the main rod body is provided with a pin sleeve and a plug inserted in the pin sleeve, and the pin sleeve is provided with a second fastening piece in threaded connection with the pin sleeve.
Further, the weight piece is a first fastener in threaded connection with the end of the pointer.
Furthermore, the scale marks on the telescopic ruler are arranged on the upper surface of the telescopic ruler.
The utility model has the beneficial effects that:
compared with the prior art, the ground fissure measuring scale measures relevant distance data through the length ruler, measures relevant angle data through the angle ruler simultaneously, and the distance data and the angle data are combined to calculate the opening distance and the lower wrong height of the ground fissure.
Drawings
FIG. 1 is a schematic structural view of a ground fissure measuring ruler according to the present invention (in use);
FIG. 2 is a schematic view of a split structure of the ground crack measuring ruler of the present invention;
FIG. 3 is a schematic structural view of a main rod body according to the present invention.
Description of the labeling: 1. the telescopic rod comprises a main rod body 1-1, a telescopic groove 1-2, a limiting groove 2, a round angle square 3, a pointer 4, a load bearing part 5, a telescopic ruler 5-1, a second splicing hole 5-2, an elastic part 6, a bolt 7, a pin sleeve 8, a second fastener 9, a fixed length ruler 9-1, a first splicing pin 9-2 and a first splicing hole.
Detailed Description
The utility model will be further explained with reference to the drawings.
Referring to fig. 1-3, a ground fissure measuring ruler comprises a length ruler and an angle ruler.
The length ruler comprises a main rod body 1 and a telescopic ruler 5, wherein a telescopic groove 1-1 matched with the telescopic ruler 5 extends upwards from the lower surface of the main rod body 1, scale marks are arranged on the telescopic ruler 5, a plurality of elastic pieces 5-2 are arranged on the side surfaces of the telescopic ruler 5 along the length direction, and the telescopic ruler 5 is embedded in the telescopic groove 1-1 of the main rod body 1. In the figure, the elastic members 5-2 are three groups.
According to above-mentioned design, telescopic ruler 5 is scalable to be set up in the body of the mast 1, and its lower surface and the lower surface parallel and level of the body of the mast 1, has guaranteed the uniformity of measuring the benchmark.
Wherein, the side wall of the telescopic groove 1-1 is provided with a limit groove 1-2 along the length direction of the main rod body 1, and after the telescopic ruler 5 is embedded in the telescopic groove 1-1, the elastic parts 5-2 arranged on the telescopic ruler 5 are all embedded in the limit grooves 1-2, thereby preventing the telescopic ruler 5 from being separated from the telescopic groove 1-1. Optionally, the elastic member 5-2 is a spring.
In the above technical solution, the scale lines on the telescopic ruler 5 are located on the side surface or the upper surface thereof. Preferably, the scale lines on the telescopic rod 5 are positioned on the upper surface thereof, which is beneficial for reading data.
The angle square includes fillet chi 2 and pointer 3, and fillet chi 2 is fixed to be set up on the body of rod 1, and pointer 3 rotates and sets up on the body of rod 1, and pointer 3's pivot line perpendicular to fillet chi 2 just passes through the centre of a circle of fillet chi 2, and 3 ends of pointer are equipped with and make it keep vertical heavy burden piece 4.
According to the design, the angle ruler can always measure the included angle between the length ruler and the vertical direction. To facilitate reading of data, a bevel is disposed at the upper end of the upper surface of the main lever 1. Furthermore, a point on the side of the main rod body 1 should be marked as a measurement starting point, and the distance between the measurement starting point and the lower end of the main rod body 1 is a fixed value, rather than taking the upper end of the main rod body 1 as the measurement starting point, so as to increase the relative height of the angle ruler during measurement.
Above-mentioned technical scheme, preferably, weight piece 4 is the first fastener with 3 terminal threaded connection of pointers, and during the measurement, rotatory first fastener makes it keep away from the body of the main rod 1, and pointer 3 normally rotates, and during non-measurement, rotatory first fastener makes it support tight body of the main rod 1, prevents that pointer 3 from rotating.
As one implementation mode, the telescopic rod type telescopic rod further comprises a plurality of fixed length scales 9, one end of each fixed length scale 9 is provided with a first splicing pin 9-1, the other end of each fixed length scale 9 is provided with a first splicing hole 9-2 matched with the first splicing pin 9-1, and one end, far away from the main rod body 1, of the telescopic rod 5 is provided with a second splicing hole 5-1 identical to the first splicing hole 9-2. In the figure, the first splicing pin 9-1, the first splicing hole 9-2 and the second splicing hole 5-1 are all two groups.
According to the design, when the equivalent range is insufficient, the measuring range can be increased by splicing the length-fixing ruler 9 on the telescopic ruler 5.
As one embodiment, the main rod 1 is provided with a pin sleeve 7 and a plug pin 6 inserted into the pin sleeve 7, the pin sleeve 7 is provided with a second fastening member 8 in threaded connection with the pin sleeve, and the second fastening member 8 abuts against the plug pin 6 to fix the position of the plug pin.
According to above-mentioned design, after this dipperstick was put to the measuring position, loosen bolt 6 and insert it ground, can fix the dipperstick temporarily.
Specifically, referring to fig. 1, the calculation process of surveying the earth with the measuring ruler is as follows:
and reading the distance L (constant value + reading) between the point A and the point B, and reading the included angle theta of the straight line AB relative to the vertical direction, wherein the opening distance of the ground fissure is L · sin theta, and the height L of the ground fissure dislocation is L · cos theta.
When theta is 45 degrees, L.sin theta is L.cos theta; when theta is more than 45 degrees, L.sin theta is more than L.cos theta, the horizontal displacement is dominant; when theta is less than 45 degrees, L.sin theta is less than L.cos theta, the lower error displacement is the main.
In general, the measuring scale measures the relevant distance data through the length scale, measures the relevant angle data through the angle scale, and combines the distance data and the angle data to calculate the opening distance and the lower dislocation height of the ground fissure.
It should be understood that the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention.
Claims (7)
1. A ground crack dipperstick which characterized in that: comprises a length ruler and an angle ruler;
the length ruler comprises a main rod body and a telescopic ruler, wherein a telescopic groove matched with the telescopic ruler is formed in the lower surface of the main rod body in an upward extending mode, scale marks are arranged on the telescopic ruler, a plurality of elastic pieces are arranged on the side face of the telescopic ruler along the length direction, and the telescopic ruler is embedded in the telescopic groove of the main rod body;
the angle ruler comprises a round angle ruler and a pointer, the round angle ruler is fixedly arranged on the main rod body, the pointer is rotatably arranged on the main rod body, the rotating shaft line of the pointer is perpendicular to the round angle ruler and passes through the circle center of the round angle ruler, and the tail end of the pointer is provided with a load-bearing part which enables the pointer to keep vertical.
2. The ground fissure dipperstick of claim 1, wherein: the lateral wall of the telescopic groove is provided with a limiting groove along the length direction of the main rod body, and after the telescopic ruler is embedded in the telescopic groove, the elastic parts arranged on the telescopic ruler are all embedded in the limiting groove.
3. The ground fissure dipperstick of claim 2, wherein: the elastic piece is a spring piece.
4. The ground fissure dipperstick of claim 1, wherein: still include a plurality of length scales, length scale one end is equipped with first concatenation round pin, the other end is equipped with the first concatenation hole that matches with first concatenation round pin, telescopic ruler keeps away from the main pole body one end and is equipped with the second concatenation hole the same with first concatenation hole.
5. The ground fissure dipperstick of claim 1, wherein: the main rod body is provided with a pin sleeve and a plug pin inserted in the pin sleeve, and the pin sleeve is provided with a second fastening piece in threaded connection with the pin sleeve.
6. The ground fissure dipperstick of claim 1, wherein: the weight piece is a first fastener in threaded connection with the tail end of the pointer.
7. The ground fissure dipperstick of claim 1, wherein: the scale mark on the telescopic ruler is positioned on the upper surface of the telescopic ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220385021.XU CN216954331U (en) | 2022-02-22 | 2022-02-22 | Ground crack dipperstick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220385021.XU CN216954331U (en) | 2022-02-22 | 2022-02-22 | Ground crack dipperstick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216954331U true CN216954331U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220385021.XU Active CN216954331U (en) | 2022-02-22 | 2022-02-22 | Ground crack dipperstick |
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| CN (1) | CN216954331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045769A (en) * | 2023-03-06 | 2023-05-02 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Ground crack measuring system for coal mining subsidence area |
-
2022
- 2022-02-22 CN CN202220385021.XU patent/CN216954331U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116045769A (en) * | 2023-03-06 | 2023-05-02 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Ground crack measuring system for coal mining subsidence area |
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