Reference probe device for measuring angle in close range

Abstract

The utility model discloses a reference probe device used for measuring an angle in a close range, which comprises a probe connecting piece (1), a probe (2), a base connecting piece (4) and a base (7), the probe (2) is arranged on the probe connecting piece (1), the probe connecting piece (1) is fixedly arranged on the base connecting piece (4), and the base connecting piece (4) is fixedly arranged on the base (7); the probe connecting piece (1) is composed of an upper mounting part (1-1) and a lower connecting part (1-2) which are integrally formed, a mounting hole (1-1-1-1) is formed in the center of the upper mounting part (1-1), the probe (2) is vertically mounted in the mounting hole (1-1-1-1), and the lower connecting part (1-2) is arranged at the top of the base connecting piece (4) in a sleeving manner; and the diameter of the measuring pin (2) is the same as the distance between double wires of the reticle.

Description

Technical Field

[0001] The utility model belongs to the technical field of measurement and detection, and in particular relates to a reference measuring needle device for measuring angles at close range. Background Art

[0002] When measuring angles in traditional geodetic and engineering surveying, surveyors need to set up a symmetrical and clear measurement mark at the surveying site, usually using a target plate as the mark. However, it is difficult to ensure accuracy when measuring short-side angles. The main reason lies in the plumbness of the measurement mark in the vertical direction and the symmetry in the horizontal direction. The specification requires that the geometric symmetry of the target plate's own pattern must be calibrated before using it. At present, the geometric symmetry of the target plate pattern is mainly calibrated by analyzing the direction value deviation and then loosening the bolts. This is time-consuming and labor-intensive, and requires a certain site, personnel and equipment. In addition, there are certain accidental errors. That is, a single adjustment result cannot fully guarantee that the symmetry accuracy at different angles meets the requirements without multiple measurement verifications, which is not conducive to the effective implementation of the measurement work.

[0003] In the field of military surveying and mapping, directional equipment is indispensable. With the increase in the number of directional equipment in our army, the calibration and accuracy verification of the equipment must use the reference azimuth edge. Usually the azimuth edges are outdoors. When measuring the azimuth edges outdoors, it is inevitable that the accuracy of the target reading will be reduced due to the influence of factors such as air flow, direct sunlight, and vibration. Although the traditional target plate has a certain degree of recognition, its geometrically symmetrical triangular shape, wide outline, and low edge line discrimination make it difficult for the human eye to recognize when encountering a slight airflow or vibration that causes the center of the target plate to deviate slightly from the double-wire or single-wire center, especially when measuring angles at close range within 100 meters. The error introduced is even greater.

[0004] The traditional target plate is mainly composed of five parts: the target plate, the lining plate, the target plate connector, the base, and the base connector. Due to the structure and pattern of the traditional target plate, the target plate and the lining plate are required to be bonded smoothly and should not have obvious dents, scratches, cracks, deformations, etc. The surface coating should not have blistering, cracking, peeling, and color inconsistency. However, as the target plate ages, the target plate and the lining plate may become debonded, bubbled, dented, scratched, cracked, and deformed, which seriously affects the accuracy of azimuth measurement.

[0005] Therefore, it is necessary to develop a new type of reference probe device for measuring angles at close range. Utility Model Content

[0006] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provides a reference probe device for measuring angles at close range.

[0007] In order to solve the technical problem, the technical method of the utility model is: a reference probe device for measuring angles at close range, comprising a probe connector, a probe, a base connector and a base, wherein the probe is mounted on the probe connector, the probe connector is fixedly mounted on the base connector, and the base connector is fixedly mounted on the base;

[0008] The measuring needle connector is composed of an upper mounting part and a lower connecting part which are integrally formed. A mounting hole is provided at the center of the upper mounting part. The measuring needle is vertically mounted in the mounting hole. The lower connecting part is sleeved on the top of the base connector.

[0009] The diameter of the measuring needle is the same as the distance between the two wires of the graticule.

[0010] Preferably, the upper mounting portion includes an integrally formed circular mounting surface and a back plate, the back plate is arranged on the edge of the upper end surface of the circular mounting surface, and the back plate is perpendicular to the circular mounting surface, and a mounting hole is opened in the center of the circular mounting surface.

[0011] Preferably, the lower connecting part is a hollow cylindrical structure, a fixing groove is provided in the circumference of the lower connecting part, and the lower connecting part is sleeved on the top of the base connecting piece.

[0012] Preferably, a cylindrical mounting groove is provided on the top of the base connector, a tightening piece is installed on one side wall of the cylindrical mounting groove, and the lower connecting part is sleeved in the cylindrical mounting groove. When the lower connecting part is sleeved in the cylindrical mounting groove, the position of the fixing groove is flush with the position of the tightening piece, and one end of the tightening piece passes through the side wall of the cylindrical mounting groove and is pressed into the fixing groove, thereby fixing the measuring probe connector on the base connector.

[0013] Preferably, the measuring needle is a cylinder of unequal diameters, including a first cylindrical section, a second cylindrical section and a third cylindrical section connected in sequence, the diameter of the second cylindrical section is larger than the diameters of the first cylindrical section and the third cylindrical section, the diameter of the first cylindrical section is the same as the distance between the double wires of the graticule, and the third cylindrical section is installed in the mounting hole.

[0014] Preferably, the diameter of the mounting hole is larger than the diameter of the third cylindrical segment, and the diameter of the mounting hole is smaller than the diameter of the second cylindrical segment.

[0015] Preferably, a long level and an optical plummet are also installed on the base connector.

[0016] Preferably, the base connector is snap-connected to the base, a circular level is provided on the base, and the base is mounted on a tripod.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] (1) The utility model discloses a reference probe device for measuring angles at close range, comprising a probe connector, a probe, a base connector and a base, wherein the probe is vertically mounted in the middle of the probe connector, the probe connector is fixedly mounted on the base connector, the base connector is clamped on the base, and the base is mounted on a tripod, the probe diameter is completely consistent with the distance between the two wires of the graticule, and when aiming, the two edge lines of the probe are almost coincident with the two wires of the graticule, which is convenient for aiming. Compared with the symmetrical pattern of the traditional sighting mark, the accuracy is greatly improved, which is more conducive to human eye discrimination, especially when observing the target at close range, which greatly improves the aiming accuracy;

[0019] (2) The reference probe device of the utility model does not need to be calibrated before use and can ensure measurement accuracy, which provides a more favorable guarantee for the effective implementation of measurement work, avoids the cumbersome calibration procedure before use, and improves the efficiency of measurement work;

[0020] (3) The reference probe device of the utility model has a simple structure, clear edge lines, and is not easy to deform or discolor. It avoids the shortcomings of traditional target plates and ensures the continuity and effectiveness of aiming accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 , a schematic structural diagram of a reference probe device for measuring angles at close range according to the utility model;

[0022] Figure 2 , a front view of the measuring needle connector of the utility model;

[0023] Figure 3 , a left side view of the measuring needle connector of the utility model;

[0024] Figure 4 , a top view of the measuring needle connector of the utility model;

[0025] Figure 5 , the front view of the measuring needle of the utility model.

[0026] Description of reference numerals:

[0027] 1. Probe connector, 2. Probe, 3. Long level, 4. Base connector, 5. Circular level, 6. Optical plummet, 7. Base;

[0028] 1-1, upper installation part, 1-2, lower connection part;

[0029] 1-1-1, circular mounting surface, 1-1-2, back panel;

[0030] 1-1-1-1, mounting hole;

[0031] 1-2-1, fixed slot;

[0032] 4-1, cylindrical mounting groove, 4-2, tightening piece;

[0033] 2-1, the first cylindrical section, 2-2, the second cylindrical section, 2-3, the third cylindrical section. DETAILED DESCRIPTION

[0034] The following describes the specific implementation of the utility model in conjunction with embodiments:

[0035] It should be noted that the contents shown in the drawings of this specification are only used to cooperate with the principles, features and content descriptions disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the utility model. Without affecting the effects and purposes that can be achieved by the utility model, they should still fall within the scope of the technical contents disclosed by the utility model.

[0036] Example 1

[0037] like Figures 1 to 5 As shown, the utility model discloses a reference probe device for measuring angles at close range, comprising a probe connector 1, a probe 2, a base connector 4 and a base 7, wherein the probe 2 is mounted on the probe connector 1, the probe connector 1 is fixedly mounted on the base connector 4, and the base connector 4 is fixedly mounted on the base 7;

[0038] The measuring needle connector 1 is composed of an upper mounting part 1-1 and a lower connecting part 1-2 which are integrally formed. A mounting hole 1-1-1-1 is provided at the center of the upper mounting part 1-1. The measuring needle 2 is vertically mounted in the mounting hole 1-1-1-1. The lower connecting part 1-2 is sleeved on the top of the base connector 4.

[0039] The diameter of the measuring needle 2 is the same as the distance between the two wires of the graticule.

[0040] Example 2

[0041] like Figures 2 to 4 As shown, preferably, the upper mounting portion 1-1 includes an integrally formed circular mounting surface 1-1-1 and a back plate 1-1-2, the back plate 1-1-2 is arranged on the edge of the upper end surface of the circular mounting surface 1-1-1, and the back plate 1-1-2 is perpendicular to the circular mounting surface 1-1-1, and a mounting hole 1-1-1-1 is opened in the center of the circular mounting surface 1-1-1.

[0042] Preferably, the lower connecting part 1 - 2 is a hollow cylindrical structure, a fixing groove 1 - 2 - 1 is circumferentially provided on the lower connecting part 1 - 2 , and the lower connecting part 1 - 2 is sleeved on the top of the base connecting piece 4 .

[0043] Example 3

[0044] like Figures 2-3 As shown, preferably, a cylindrical mounting groove 4-1 is provided on the top of the base connector 4, a tightening piece 4-2 is installed on one side wall of the cylindrical mounting groove 4-1, and the lower connecting part 1-2 is sleeved in the cylindrical mounting groove 4-1. When the lower connecting part 1-2 is sleeved in the cylindrical mounting groove 4-1, the position of the fixing groove 1-2-1 is flush with the position of the tightening piece 4-2, and one end of the tightening piece 4-2 passes through the side wall of the cylindrical mounting groove 4-1 and is pressed into the fixing groove 1-2-1, thereby fixing the probe connector 1 on the base connector 4.

[0045] One end of the tightening member 4-2 close to the fixing groove 1-2-1 is adapted to the shape of the fixing groove 1-2-1.

[0046] Example 4

[0047] like Figure 5 As shown, preferably, the measuring needle 2 is a cylinder of unequal diameters, including a first cylindrical segment 2-1, a second cylindrical segment 2-2 and a third cylindrical segment 2-3 connected in sequence, the diameter of the second cylindrical segment 2-2 is larger than the diameters of the first cylindrical segment 2-1 and the third cylindrical segment 2-3, the diameter of the first cylindrical segment 2-1 is the same as the distance between the double wires of the graticule, and the third cylindrical segment 2-3 is installed in the mounting hole 1-1-1-1.

[0048] like Figure 5 As shown, preferably, the diameter of the mounting hole 1-1-1-1 is larger than the diameter of the third cylindrical segment 2-3, and the diameter of the mounting hole 1-1-1-1 is smaller than the diameter of the second cylindrical segment 2-2.

[0049] The height of the first cylindrical section 2-1 is slightly higher than that of the back plate 1-1-2, and the color of the back plate 1-1-2 is quite different from that of the measuring needle 2. For example, the color of the back plate 1-1-2 is white, and the color of the measuring needle 2 is black. This allows the boundary of the measuring needle 2 to be more clearly distinguished, making it easier to aim the theodolite or total station.

[0050] Example 5

[0051] like Figure 1 As shown, preferably, a long level 3 and an optical plummet 6 are also installed on the base connector 4 .

[0052] like Figure 1 As shown, preferably, the base connector 4 is snap-connected to the base 7, a circular level 5 is provided on the base 7, and the base 7 is mounted on a tripod.

[0053] The long level 3, circular level 5 and optical plummet 6 are existing original parts, and their working principles and usage methods are all existing technologies, which will not be described in detail in the present utility model.

[0054] The principle of the utility model is as follows:

[0055] like Figures 1 to 5 As shown, the utility model discloses a reference measuring needle device for measuring angles at close range, comprising a measuring needle connector 1, a measuring needle 2, a base connector 4 and a base 7, wherein the measuring needle 2 is mounted on the measuring needle connector 1, the measuring needle connector 1 is fixedly mounted on the base connector 4, the base connector 4 is fixedly mounted on the base 7, the diameter of the measuring needle 2 is the same as the distance between the double wires of the graticule, when aiming, the surveyor sets up the theodolite or the total station at a preset observation point and levels it, aims at the reference measuring needle device at the measured point, adjusts the focal length of the telescope to make it clearly visible, adjusts the eyepiece until the crosshair graticule of the telescope is clearly visible, uses the double wires of the crosshair graticule of the theodolite to completely clamp the measuring needle 2 in the middle, and observes the distance between the two edge lines of the measuring needle 2 and the corresponding double wires to accurately adjust the two sides to be completely symmetrical, or uses the single wire of the graticule of the theodolite to aim at the center line of the measuring needle 2, and observes the distance between the single wire and the two edge lines of the measuring needle 2 to accurately adjust the two sides to be completely symmetrical, thereby achieving accurate aiming and laying a foundation for measuring angles at close range.

[0056] The method of using the utility model is:

[0057] 1) Set up a tripod at the measured point and level it;

[0058] 2) Connect the measuring needle 2 to the measuring needle connector 1, then insert the measuring needle connector 1 into the interface of the base connector 4 and lock it, and install the base connector 4 on the base 7;

[0059] 3) Place the base 7 connected with the measuring needle 2 on a leveled tripod;

[0060] 4) Rotate the base 7 and the foot screw to check whether the bubble of the long level 3 is centered.

[0061] If there is a deviation, the correction screw on the long level 3 needs to be adjusted, so that the bubble of the long level 3 deviates from the center by no more than 0.5 grid within the range of 360° on the rotating base 7.

[0062] 5) After the level 3 is calibrated, if the bubble of the circular level 5 on the base 7 is centered, no calibration is required. If the bubble is not centered, adjust the correction screw of the circular level 5 until the bubble deviates from the center by no more than 1 / 4 grid value.

[0063] 6) After adjusting the focal length of the optical plummet 6 on the base connector 4, move the cross mark on the ground to coincide with the center mark of the optical plummet centering point. Rotate the plummet and adjust the plummet with the correction screw until the center runout of the plummet is no more than 0.3 mm when rotating 360°.

[0064] 7) Set up a theodolite or total station at a preset observation point and level it, aim at the reference probe device at the measured point, adjust the telescope focal length to make it clearly visible, adjust the eyepiece until the telescope crosshair graticule is clearly visible, use the double wires of the theodolite crosshair graticule to completely clamp the probe 2 in the middle, and accurately adjust it to make both sides completely symmetrical by observing the distance between the two edge lines of the probe 2 and the corresponding double wires, or use the single wire of the theodolite graticule to aim at the center line of the probe 2, and accurately adjust it to make both sides completely symmetrical by observing the distance between the single wire and the two edge lines of the probe 2.

[0065] As an angle measuring target device, the reference probe device for measuring angles at close range of the utility model is different from the existing traditional target plate in the following aspects:

[0066] 1. Differences in precise aiming methods:

[0067] When aiming at a traditional target plate: Method 1: Use the double wires of the theodolite crosshair graticule to clamp the center line of the target plate in the middle, and use the unique symmetrical pattern of the target plate to accurately adjust the position of the double wires to make the patterns on both sides completely symmetrical; Method 2: Use the single wire of the theodolite graticule to aim at the center line of the target plate so that they coincide.

[0068] The method for aiming the reference probe device of the utility model is:

[0069] Method 1: Use the double wires of the theodolite crosshair graticule to completely clamp the measuring needle 2 in the middle, and accurately adjust it to make both sides completely symmetrical by observing the distance between the two edge lines of the measuring needle and the corresponding double wires. In addition, the diameter of the measuring needle 2 specially designed by this device is completely consistent with the distance between the double wires of the graticule, and the two edge lines almost coincide with the double wires when aiming;

[0070] Method 2: Use the single wire on the theodolite graticule to aim at the center line of the measuring needle, and accurately adjust the distance between the single wire and the two edge lines of the measuring needle 2 to make both sides completely symmetrical.

[0071] 2. Different calibration requirements before use

[0072] Before using a traditional target plate, the geometric symmetry of the target plate's own pattern must be checked and calibrated. Currently, when using the reference probe device of the utility model, no calibration is required.

[0073] The utility model discloses a reference probe device for measuring angles at close range, comprising a probe connector, a probe, a base connector and a base, wherein the probe is vertically mounted at the middle position of the probe connector, the probe connector is fixedly mounted on the base connector, the base connector is clamped on the base, and the base is mounted on a tripod, the probe diameter is completely consistent with the distance between double wires of a graticule, and when aiming, the two edge lines of the probe are almost coincident with the double wires of the graticule, so aiming is convenient, and the accuracy is greatly improved compared with the symmetrical pattern of a traditional sighting mark, which is more conducive to human eye discrimination, especially when observing a target at close range, and the aiming accuracy is greatly improved.

[0074] The reference probe device of the utility model does not need to be calibrated before use and can ensure measurement accuracy, which provides a more favorable guarantee for the effective implementation of measurement work, avoids cumbersome calibration procedures before use, and improves the efficiency of measurement work.

[0075] The utility model discloses a reference measuring needle device with simple structure, clear and discernible edge lines, and is not easy to deform or discolor, thereby avoiding the shortcomings of traditional target plates and ensuring the continuity and effectiveness of aiming accuracy.

[0076] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary geologists in the field without departing from the purpose of the present invention.

[0077] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A reference probe device for measuring angles at close range, characterized in that: It comprises a measuring needle connecting member (1), a measuring needle (2), a base connecting member (4) and a base (7), wherein the measuring needle (2) is mounted on the measuring needle connecting member (1), the measuring needle connecting member (1) is fixedly mounted on the base connecting member (4), and the base connecting member (4) is fixedly mounted on the base (7); The measuring needle connector (1) is composed of an upper mounting portion (1-1) and a lower connecting portion (1-2) which are integrally formed; a mounting hole (1-1-1-1) is provided at the center of the upper mounting portion (1-1); the measuring needle (2) is vertically mounted in the mounting hole (1-1-1-1); and the lower connecting portion (1-2) is sleeved on the top of the base connector (4); The diameter of the measuring needle (2) is the same as the distance between the two wires of the graticule.

2. A reference probe device for close-range angle measurement according to claim 1, characterized in that: The upper mounting portion (1-1) comprises an integrally formed circular mounting surface (1-1-1) and a back plate (1-1-2); the back plate (1-1-2) is arranged on the upper end surface edge of the circular mounting surface (1-1-1), and the back plate (1-1-2) is perpendicular to the circular mounting surface (1-1-1); and a mounting hole (1-1-1-1) is provided at the center of the circular mounting surface (1-1-1).

3. A reference probe device for close-range angle measurement according to claim 1, characterized in that: The lower connecting part (1-2) is a hollow cylindrical structure. A fixing groove (1-2-1) is provided in the circumference of the lower connecting part (1-2). The lower connecting part (1-2) is sleeved on the top of the base connecting piece (4).

4. A reference probe device for close-range angle measurement according to claim 3, characterized in that: The top of the base connecting member (4) is provided with a cylindrical mounting groove (4-1), a tightening member (4-2) is installed on one side wall of the cylindrical mounting groove (4-1), and the lower connecting portion (1-2) is sleeved in the cylindrical mounting groove (4-1). When the lower connecting portion (1-2) is sleeved in the cylindrical mounting groove (4-1), the position of the fixing groove (1-2-1) is flush with the position of the tightening member (4-2), and one end of the tightening member (4-2) passes through the side wall of the cylindrical mounting groove (4-1) and is pressed into the fixing groove (1-2-1), thereby fixing the measuring needle connecting member (1) on the base connecting member (4).

5. A reference probe device for close-range angle measurement according to claim 1, characterized in that: The measuring needle (2) is a cylinder of unequal diameters, comprising a first cylindrical section (2-1), a second cylindrical section (2-2) and a third cylindrical section (2-3) connected in sequence, the diameter of the second cylindrical section (2-2) being respectively larger than the diameters of the first cylindrical section (2-1) and the third cylindrical section (2-3), the diameter of the first cylindrical section (2-1) being the same as the distance between the double wires of the reticle, and the third cylindrical section (2-3) being installed in the installation hole (1-1-1-1).

6. A reference probe device for close-range angle measurement according to claim 5, characterized in that: The diameter of the mounting hole (1-1-1-1) is greater than the diameter of the third cylindrical section (2-3), and the diameter of the mounting hole (1-1-1-1) is smaller than the diameter of the second cylindrical section (2-2).

7. A reference probe device for close-range angle measurement according to claim 1, characterized in that: A long level (3) and an optical plummet (6) are also installed on the base connecting member (4).

8. A reference probe device for close-range angle measurement according to claim 1, characterized in that: The base connecting member (4) is clamped on the base (7), a circular level (5) is arranged on the base (7), and the base (7) is mounted on a tripod.

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