RTK measuring rod with fan-shaped tip

Abstract

The utility model discloses an RTK (Real Time Kinematic) measuring rod with a fan-shaped tip, which belongs to the technical field of surveying and mapping instruments and can solve the problem of low measuring precision when the existing RTK measuring rod is used for measuring loose soil such as soft cultivated land, desert or sludge. The measuring rod comprises a single rod; the fan-shaped tip is connected to the bottom end of the single rod; the fan-shaped tip comprises an inverted cone part and a fan-shaped part; the bottom surface of the fan-shaped body part is fan-shaped, and the height of the fan-shaped body part is the same as that of the inverted cone part; the vertex of the fan-shaped body part is located on the central axis of the single rod and coincides with the vertex of the inverted cone part. The utility model is used for the RTK measuring rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to a RTK surveying rod with fan-shaped tip belongs to surveying and mapping instrument technical field. BACKGROUND

[0002] RTK (Real-Time Kinematic, real-time dynamic positioning technology, usually also refers to GNSS-RTK surveying instrument) has become one of the indispensable surveying instruments for surveying and mapping professionals, and the surveying rod is an indispensable accessory. The bottom tip of the existing RTK surveying single rod structure is a conical or other multi-faceted cone structure, and the bottom is sharp. When measuring in soft farmland, desert or silt, the single rod stands on the ground, and during the measurement process, the rod tip easily penetrates below the ground under the action of gravity, and the depth sometimes even reaches 5cm-10cm or more, which seriously affects the terrain point measurement accuracy. If it is like a control point survey, a large height error will directly affect the accuracy of aerial triangulation and three-dimensional model. SUMMARY

[0003] The utility model provides a RTK surveying rod with fan-shaped tip, can solve the problem of low measurement accuracy of the existing RTK surveying rod when measuring loose soil such as soft farmland, desert or silt.

[0004] The utility model provides a RTK surveying rod with fan-shaped tip, the surveying rod includes:

[0005] Single rod;

[0006] Fan-shaped tip, be connected in the bottom end of single rod;The fan-shaped tip includes inverted pyramid portion and fan-shaped portion;The bottom surface of fan-shaped portion is fan-shaped, and its height is same with the height of inverted pyramid portion;

[0007] The vertex of fan-shaped portion is located on the central axis of single rod, and coincides with the vertex of inverted pyramid portion.

[0008] Optionally, the bottom end of the single rod is detachably connected with the fan-shaped tip.

[0009] Optionally, the included angle of the bottom surface of the fan-shaped portion is 70°-110°.

[0010] Optionally, the inverted pyramid portion is an inverted circular cone.

[0011] Optionally, the radius of the bottom surface of the fan-shaped portion is greater than or equal to the radius of the bottom surface of the inverted pyramid portion.

[0012] Optionally, the inverted pyramid portion and the fan-shaped portion are integrally formed.

[0013] Optionally, the bottom end of the single rod is provided with a nut, the bottom surface of the inverted pyramid part of the fan-shaped prong is provided with a threaded hole, and the nut is connected in the threaded hole.

[0014] Optionally, the fan-shaped prong is made of aluminum alloy.

[0015] The utility model discloses can produce beneficial effect includes:

[0016] The utility model discloses a RTK measuring rod with fan-shaped prong, through connecting fan-shaped prong at the bottom end of single rod, when measuring, fan-shaped prong stands on the ground, because the bottom surface of fan-shaped body part is fan-shaped, the area of contact with the ground is larger, the resistance of natural sinking under gravity is big, and the coarse error of measurement is very small, and therefore the measurement precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a RTK measuring rod with fan-shaped prong structure schematic diagram for the embodiment of the utility model provides;

[0018] Figure 2 The utility model discloses a fan-shaped prong front view structure schematic diagram for the embodiment of the utility model provides;

[0019] Figure 3 The utility model discloses a fan-shaped prong lower view structure schematic diagram for the embodiment of the utility model provides;

[0020] Figure 4 The utility model discloses a fan-shaped prong upper view structure schematic diagram for the embodiment of the utility model provides;

[0021] Figure 5 The utility model discloses a fan-shaped prong and existing single point prong measuring control point schematic diagram for the embodiment of the utility model provides;

[0022] Figure 6 The utility model discloses a fan-shaped prong and existing single point prong measuring schematic diagram on soft soil for the embodiment of the utility model provides.

[0023] Reference signs:

[0024] 1, single rod;2, fan-shaped prong;21, inverted pyramid part;22, fan-shaped body part;3, nut;4, threaded hole;5, single point prong;6, control point. DETAILED DESCRIPTION

[0025] The utility model discloses will be limited to these embodiments in the following in conjunction with embodiment detailed description.

[0026] The utility model embodiment provides a RTK measuring rod with fan-shaped prong, as shown in Figures 1 to 4 The utility model discloses a RTK measuring rod with fan-shaped prong, through connecting fan-shaped prong at the bottom end of single rod, when measuring, fan-shaped prong stands on the ground, because the bottom surface of fan-shaped body part is fan-shaped, the area of contact with the ground is larger, the resistance of natural sinking under gravity is big, and the coarse error of measurement is very small, and therefore the measurement precision is improved.

[0027] Single rod 1;

[0028] The fan-shaped tip 2 is connected to the bottom end of the single rod 1, and the fan-shaped tip 2 comprises an inverted pyramid portion 21 and a fan-shaped portion 22; the bottom surface of the fan-shaped portion 22 is fan-shaped, and the height of the fan-shaped portion 22 is the same as the height of the inverted pyramid portion 21.

[0029] The vertex of the fan-shaped portion 22 is located on the central axis of the single rod 1 and coincides with the vertex of the inverted pyramid portion 21.

[0030] The fan-shaped tip of the RTK measuring rod designed in the utility model is a fan-shaped tip structure, which can replace the original conical (or polyhedral conical) tip, and the vertex of the bottom fan shape of the fan-shaped tip 2 plays the role of the existing single-point tip 5, is used for point matching, measuring a control point 6, checking a control point 6 and the like, and has the role of the existing single-point tip 5, that is, the fan-shaped tip 2 can accurately match points. Figure 5 As shown in the reference, Figure 5 The left half in the middle is a schematic diagram of a measuring rod of the existing single-point tip 5 measuring a control point 6, Figure 5 And the right half is a schematic diagram of a measuring rod of the fan-shaped tip of the utility model measuring a control point 6.

[0031] Meanwhile, when measuring on soft ground, farmland and desert, the fan-shaped tip 2 of the utility model is used for measurement, since the bottom of the fan-shaped tip 2 is a fan-shaped plane, the contact area with the soft soil ground of the measured point is increased, and therefore the depth of the measuring rod and the GNSS equipment sinking into the ground under the action of gravity after natural sinking can be significantly reduced, and the accuracy of the RTK measurement height is increased. Figure 6 As shown in the reference, Figure 6 The left half in the middle is a schematic diagram of a measuring rod of the existing single-point tip 5 measuring on soft soil, Figure 6 And the right half is a schematic diagram of a measuring rod of the fan-shaped tip of the utility model measuring on soft soil.

[0032] In the embodiment of the utility model, the bottom end of the single rod 1 is detachably connected with the fan-shaped tip 2. In this way, the tip of the measuring rod can be replaced at any time, so that the measuring rod can adapt to more application scenarios.

[0033] Specifically, the bottom end of the single rod 1 is provided with a nut 3, the bottom surface of the inverted pyramid portion 21 of the fan-shaped tip 2 is provided with a threaded hole 4, and the nut 3 is connected in the threaded hole 4. That is, the bottom end of the single rod 1 is connected with the top end of the fan-shaped tip 2 through the nut 3.

[0034] In actual application, the inverted pyramid portion 21 and the fan-shaped portion 22 are integrally formed. In this way, the strength of the fan-shaped tip 2 can be ensured.

[0035] The material of the fan-shaped tip 2 is not limited in the embodiment of the utility model, and for example, the fan-shaped tip 2 can be made of aluminum alloy.

[0036] In the utility model, the included angle of the bottom surface of the fan-shaped body part 22 is 70°-110°. For example, the included angle of the bottom surface of the fan-shaped body part 22 can be 70°, 80°, 90°, 100°, 110°, etc. Preferably, the included angle of the bottom surface of the fan-shaped body part 22 is 90°.

[0037] In practical application, the inverted cone body part 21 is an inverted circular cone.

[0038] Further, the radius of the bottom surface of the fan-shaped body part 22 is greater than or equal to the radius of the bottom surface of the inverted cone body part 21. By setting the radius of the bottom surface of the fan-shaped body part 22 to be relatively large, the area of the bottom surface of the fan-shaped body part 22 can be increased, i.e. the bottom support area of the fan-shaped prong 2 is increased, so that the fan-shaped prong 2 is less likely to sink in soft ground, thereby further increasing the precision of RTK measurement height.

[0039] Reference Figures 1 to 4 As shown in the figure, the upper part of the measuring rod is a cylindrical single rod 1, the lower part is a fan-shaped prong 2 composed of a conical prong and a fan-shaped body, and the bottom tip is at the end of the center line of the cylindrical single rod 1 (when the measuring rod is vertical, the bottom tip is the projection position of the phase center point of the GNSS receiver antenna).

[0040] When measuring the ground in farmland, desert, silted mud top, or other loose geological conditions, the fan-shaped prong 2 can be used for measurement. The fan-shaped prong 2 stands on the ground, and because the area in contact with the ground is large, the resistance to gravity is large, and the measurement error is small, thereby improving the measurement precision.

[0041] The above is only a few embodiments of the present application, and does not limit the present application in any form. Although the above is disclosed as a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, which is equivalent to an equivalent embodiment, and is within the scope of the technical solution.

Claims

1. An RTK measuring pole with a sector-shaped tip, characterized in that, The measuring rod comprises: a single rod; a fan-shaped tip connected to the bottom end of the single rod; the fan-shaped tip comprises an inverted pyramid portion and a fan-shaped portion; the bottom surface of the fan-shaped portion is fan-shaped, and the height of the fan-shaped portion is the same as the height of the inverted pyramid portion; the vertex of the fan-shaped portion is located on the central axis of the single rod and coincides with the vertex of the inverted pyramid portion.

2. The measuring rod according to claim 1, characterized in that The bottom end of the single rod is detachably connected to the fan-shaped tip.

3. The measuring rod according to claim 1, characterized in that The included angle of the bottom surface of the fan-shaped portion is 70°-110°.

4. The measuring rod according to claim 1, characterized in that The inverted pyramid portion is an inverted circular cone.

5. The measuring rod according to claim 4, characterized in that The radius of the bottom surface of the fan-shaped portion is greater than or equal to the radius of the bottom surface of the inverted pyramid portion.

6. The measuring rod according to claim 1, characterized in that The inverted pyramid portion and the fan-shaped portion are integrally formed.

7. The measuring rod according to claim 2, characterized in that The bottom end of the single rod is provided with a nut, the bottom surface of the inverted pyramid portion of the fan-shaped tip is provided with a threaded hole, and the nut is connected in the threaded hole.

8. The measuring rod according to claim 1, characterized in that The fan-shaped tip is made of aluminum alloy.

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