Portable point erecting device

Abstract

The utility model provides a portable point erecting device, which comprises a frame body, a connecting assembly, a needle head, a shell and a prism assembly, and is characterized in that the connecting assembly is detachably connected with the frame body; the needle head is detachably connected with one end, positioned in the frame body, of the connecting assembly; the shell is of a cubic structure, the interior of the shell is hollow, the shell is detachably connected with the other end of the connecting assembly, and through holes are formed in the four side faces of the shell in the circumferential direction of the shell; and the prism assembly is arranged in the shell.

Description

Technical Field

[0001] This utility model relates to the field of power supply technology, specifically to a portable power supply device. Background Technology

[0002] As military training and preparedness tasks deepen and unit surveying technology continues to develop, the requirements for the accuracy and reliability of surveying tools are becoming increasingly stringent. Portable surveying stations, as a rapid and convenient auxiliary instrument for measuring distances, play a vital role in the surveying field by providing quick and convenient access to surveying positions. However, during setup, operators use a surveying board, and setting up a single point takes 2 to 3 minutes, which is relatively time-consuming and requires a certain amount of training to meet the required standards. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a portable mounting device.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A portable mounting device includes: a frame; a connecting assembly detachably connected to the frame; a needle detachably connected to one end of the connecting assembly located within the frame; a housing, the housing having a cubic structure with a hollow interior, the housing being detachably connected to the other end of the connecting assembly, and the housing having through holes on its four circumferential sides; and a prism assembly installed within the housing.

[0006] The frame is U-shaped and made of stainless steel. The frame includes a longitudinal section and a first transverse section and a second transverse section respectively disposed at both ends of the longitudinal section. The connecting component is detachably connected to the first transverse section, and a rectangular opening is provided on the second transverse section.

[0007] It also includes a magnetic lamp, on which a magnetic plate is fixedly connected, and the magnetic lamp is magnetically connected to the bottom of the first horizontal part through the magnetic plate.

[0008] The connecting assembly includes: a screw rod, which has screw holes at both ends and is threadedly connected to the first transverse portion; and a nut, which is threadedly connected to the screw rod.

[0009] The needle includes: a syringe, one end of which is fixedly provided with a second screw, the second screw being threadedly connected to the screw hole at one end of the frame body of the first screw; and a needle tip, which is fixedly connected to the other end of the syringe.

[0010] One end of the outer shell is open and the interior is hollow. The through holes are provided on the four sides of the outer shell in the circumferential direction.

[0011] The prism assembly includes: a mirror base, which includes a base and a top base. The base is adapted to the opening of the housing and is detachably connected to the opening of the housing. The top base has a triangular structure. Connecting seats corresponding to the top base are fixedly provided at the three corners of the base. Connecting rods are installed on the connecting seats, and the other end of the connecting rods is connected to the top base. A screw three is fixedly connected to the bottom of the base, and the screw three is threadedly connected to the screw hole at the end of the screw one away from the needle tip. A 360-degree prism body is mounted on the base.

[0012] The beneficial effects of this utility model are:

[0013] This utility model of a portable target acquisition device features a detachable connection between the frame, connecting components, needle, outer shell, prism assembly, and magnetic lamp. The assembly is simple and quick, and the setup method is easy. With minimal training, personnel can complete the setup within 30 seconds. Compared to traditional target acquisition, it offers advantages such as higher accuracy, time savings, less target exposure, and ease of operation. In areas with good visibility, it can replace traditional target acquisition devices, enabling rapid distance measurement at the site. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the portable mounting device according to an embodiment of the present invention;

[0015] Figure 2 This is a side view of a portable mounting device according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the frame structure according to one embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structure of a connection component according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the needle structure according to one embodiment of the present invention;

[0019] Figure 6 This is an exploded structural diagram of the prism assembly and the outer shell according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Frame, 11-Longitudinal section, 12-First transverse section, 13-Second transverse section, 14-Rectangular opening;

[0022] 2-Connecting assembly, 21-Screw 1, 22-Screw hole, 23-Nut;

[0023] 3-Needle, 31-Syringe, 32-Screw 2, 33-Needle tip.

[0024] 4-Outer shell, 41-Through hole;

[0025] 5-Prism assembly, 51-Base, 52-Top mount, 53-Connecting mount, 54-Connecting rod, 55-Screw three, 56-360-degree prism body;

[0026] 6-Magnetic lamp, 61-Magnetic sheet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-6 As shown, a portable mounting device according to an embodiment of the present invention may include a frame 1; a connecting component 2; a needle 3; a shell 4; and a prism component 5.

[0029] Specifically, the connecting component 2 is detachably connected to the frame 1; the needle 3 is detachably connected to one end of the connecting component 2 located inside the frame 1; the outer shell 4 has a cubic structure with a hollow interior, and the other end of the outer shell 4 is detachably connected to the connecting component 2, and the outer shell 4 has through holes 41 on its four sides along its circumferential direction; the prism component 5 is installed inside the outer shell 4.

[0030] In one embodiment of this utility model, such as Figure 3 As shown, the frame 1 is U-shaped and made of stainless steel. The frame 1 includes a longitudinal part 11 and a first transverse part 12 and a second transverse part 13 respectively disposed at both ends of the longitudinal part 11. The connecting component 2 is detachably connected to the first transverse part 12. A rectangular opening 14 is provided on the second transverse part 13.

[0031] In one embodiment of this utility model, such as Figure 2 As shown, it also includes a magnetic lamp 6, on which a magnetic plate 61 is fixedly connected. The magnetic lamp 6 is magnetically connected to the bottom of the first horizontal part 12 through the magnetic plate 61.

[0032] The magnetic light 6 is a multi-functional magnetic light 6, which is an existing technology product, and its structural principle will not be described in detail here. The magnetic plate 61 uses a magnet. When measuring at night, the portable measuring device is a small target, and the magnetic light 6 is magnetically attached to the inside of the frame 1, with less light source exposure, which can achieve a better concealment and camouflage effect.

[0033] In one embodiment of this utility model, such as Figure 4 As shown, the connecting assembly 2 may include a screw 21 and a nut 23, wherein the screw 21 has screw holes 22 at both ends and is threadedly connected to the first transverse portion 12; the nut 23 is threadedly connected to the screw 21.

[0034] In one embodiment of this utility model, such as Figure 5 As shown, the needle 3 may include a syringe 31 and a needle tip 33. One end of the syringe 31 is fixedly provided with a second screw 32, which is threadedly connected to the screw hole 22 at one end of the screw 21 located inside the frame 1. The needle tip 33 is fixedly connected to the other end of the syringe 31.

[0035] In one embodiment of this utility model, such as Figure 6 As shown, one end of the outer shell 4 is open and the interior is hollow, and the through holes 41 are provided on the four sides of the outer shell in the circumferential direction.

[0036] In one embodiment of this utility model, such as Figure 6 As shown, the prism assembly 5 may include a mirror base and a 360-degree prism body 56. The mirror base may include a base 51 and a top base 52. The base 51 is adapted to the opening of the outer casing 4 and is detachably connected to the opening of the outer casing 4. The top base 52 has a triangular structure. Connecting seats 53 corresponding to the top base 52 are fixedly provided at the three corners of the base 51. Connecting rods 54 are installed on the connecting seats 53, and the other end of the connecting rods 54 is connected to the top base 52. A screw 3 55 is fixedly connected to the bottom of the base 51. The screw 3 55 is threadedly connected to the screw hole 22 at the end of the screw 1 21 away from the needle 3. The 360-degree prism body 56 is mounted on the base 51.

[0037] The 360-degree prism body 56 is glued to the base 51. The 360-degree prism body 56 is located inside the outer shell 4, which provides protection for its movement and can prevent rain.

[0038] In this embodiment of the invention, the 360-degree prism body is a Leica 360-degree microprism.

[0039] During setup, place the device at the point to be measured, adjust the needle tip up and down using the nut until the needle tip is accurately placed at the measurement point, then tighten the nut to ensure it is flat on the measurement point, and then proceed with the subsequent measurement work.

[0040] The following explains the data constants for the portable prism:

[0041] I. Prism Parameters

[0042] 1. The prism constant of the Leica 360-degree small prism is -30mm, and the absolute constant is -4.4mm (i.e., the distance correction value caused by the difference in the propagation path of light in the prism). When using it, the prism constant needs to be set correctly in measuring instruments such as total stations, otherwise it will lead to a large error in the distance measurement results.

[0043] 2. The ranging accuracy of the Leica 360-degree small prism 30mm usually depends on the accuracy of the measuring instruments used, such as the total station, as well as the measurement environment. The accuracy of the prism itself has a certain impact on the final ranging accuracy, but it is not the only determining factor.

[0044] 3. If using a high-precision Leica total station such as (TS11 or TC1201) in conjunction with it, under good measurement conditions (such as no strong wind, strong light interference, stable temperature, etc.).

[0045] 4. The overall ranging accuracy can reach the millimeter level, but if the measurement environment is poor or the instrument used has low accuracy, the ranging accuracy may be greatly affected.

[0046] II. Sources of error and error elimination

[0047] 1. Fixed errors inherent to the instrument: These are mainly caused by errors in the determination of the instrument's additive constant, centering errors, and phase measurement errors. This part of the error is independent of the measured distance; regardless of the actual distance, a certain fixed error will always exist. For a Leica total station paired with this small prism system, this fixed error may be within the millimeter range, but the specific value varies depending on the instrument model and the specific equipment.

[0048] Aiming error:

[0049] 1. Aiming accuracy: The needle tip is made of SKD61 grinding rod, with a general accuracy of -0.01 to -0.02 mm. The syringe is machined by a precision CNC lathe with an accuracy in the range of 0.01 to 0.03 mm.

[0050] 2. When using a Leica total station to aim at the 360-degree prism body and needle, surveyors may not be able to accurately aim at the center of the 360-degree prism body, which will produce aiming error. The magnitude of the aiming error depends on the surveyor's operating skills and experience, as well as the accuracy of the total station's aiming equipment.

[0051] Scale error:

[0052] The proportional error is mainly caused by instrument frequency error and atmospheric refractive index error. This part of the instrument's error changes proportionally with the actual measured distance. The proportional error coefficient is usually expressed in ppm (parts per million). For example, the distance measurement accuracy of some Leica total stations is expressed as (a + bppm * d) mm, where b is the proportional error coefficient and d is the actual distance measured by the total station (in kilometers).

[0053] Manufacturing errors inherent in the prism itself:

[0054] This includes errors caused by manufacturing tolerances such as the precision of the four reflecting surfaces of the prism and the accuracy of the angles. Leica products are manufactured with high precision, but even the 30mm Leica 360-degree miniature prism may still have some manufacturing error, generally around ±0.5mm.

[0055] The influence of external environmental factors:

[0056] Changes in environmental conditions such as temperature, humidity, and air pressure can affect measurement results. For example, temperature changes may cause slight variations in the physical dimensions of the prism and instrument, thus affecting measurement accuracy; changes in atmospheric refractive index can also affect the light propagation path, thereby affecting distance measurement accuracy. Under favorable measurement conditions, the impact of these factors is relatively small, but under harsh environmental conditions, errors may increase.

[0057] Temperature change error:

[0058] This affects the physical dimensions of the instrument and prism, as well as the refractive index of air. Generally, for every 1°C change in temperature, the thermal expansion and contraction of the instrument and prism may cause a distance measurement error of approximately 0.1 mm / m. In this case, for a distance of 800 meters, due to a 20°C temperature change, the error caused by thermal expansion and contraction would be approximately 800 × 0.1 × 20 = 1600 mm = 1.6 m. Simultaneously, the change in the air's refractive index caused by temperature variations will also affect the measurement results, and the combined effect will significantly increase the measurement error.

[0059] Lighting conditions - strong light interference:

[0060] In strong light environments, such as under intense sunlight, portable measuring devices may experience interference, such as difficulty seeing the needle or misalignment of the measurement point. Strong light may also cause misalignment during setup, leading to inaccurate measurements and affecting ranging accuracy and speed.

[0061] The following are solutions to the 30mm measurement error of the Leica 360° microprism:

[0062] I. Instrument-related errors 1. Prism constant error

[0063] Correct settings: Before using the total station, be sure to carefully check the prism constant and accurately set it to -30mm in the instrument. The prism constant setting can be written in a prominent location, such as on the total station's casing, to remind the operator.

[0064] Checking and Verification: Before commencing measurements, verify the prism constant setting by measuring target points at known distances (e.g., two points determined using a precisely calibrated steel ruler). If the measurement results deviate from the known distance, first check the prism constant setting.

[0065] 2. Prism manufacturing precision error

[0066] Quality Inspection: When purchasing prisms, choose reliable products that have undergone rigorous testing. You can check the product's quality certifications and test reports to ensure the prism's manufacturing precision meets requirements.

[0067] Replace the prism: If the measurement results are unreliable due to manufacturing precision errors of the prism and cannot be corrected by other methods, the prism should be replaced in time.

[0068] II. Solutions to Errors Caused by Environmental Factors

[0069] 1. Temperature effect

[0070] Temperature Compensation: Leica total stations generally have a temperature compensation function. Accurately input the current ambient temperature during measurement, and the instrument will automatically perform temperature compensation calculations. For example, use a high-precision thermometer to measure the ambient temperature and input the temperature value into the total station.

[0071] Choose an appropriate time for measurement: Try to select a period of time with minimal temperature fluctuations, such as early morning or evening. If measurements must be taken during periods of greater temperature fluctuation throughout the day, increase the number of measurements and take the average to reduce errors caused by temperature variations.

[0072] 2. Influence of atmospheric refraction

[0073] Meteorological correction: During measurement, use a barometer and hygrometer to measure the air pressure and humidity at the site, and input these meteorological parameters into the total station so that the instrument can make meteorological corrections based on the built-in atmospheric refraction model.

[0074] Shorten the measurement distance or use differential measurement technology: In situations where atmospheric refraction has a significant impact, such as long-distance measurements or areas with complex atmospheric conditions, the measurement distance can be appropriately shortened, and measurements can be taken in multiple segments and then accumulated.

[0075] 3. If the portable positioning device's vertical centering mechanism has a deviation, such as the needle not being perpendicular to the point, when using the portable positioning device to center the point, even if it appears to be aligned, the needle of the portable positioning device will actually have a certain error, which may be on the order of millimeters.

[0076] III. Human operational factors

[0077] 1. Improper centering operation

[0078] When aligning a portable positioning device, the operator may not accurately align the needle of the device with the target point. For example, if the upper nut is not tightened, is loose, or is off-target, it may cause errors during measurement. Alternatively, accidentally touching the portable positioning device and causing a slight displacement will also introduce errors, leading to alignment errors.

[0079] 2. The Influence of Leveling Error

[0080] Leveling is done to ensure the portable positioning device is perpendicular to the center of the target point. However, if the centering is not precise enough, the portable positioning device may tilt, causing the needle tip to bend and misalign with the target point, resulting in centering errors. This is especially true when the area around the target point is uneven, with significant terrain undulations and uneven ground, which can easily lead to larger centering errors.

[0081] Here are some methods to eliminate errors in portable mounting devices:

[0082] 1. Choose a relatively flat and firm site to set up the portable mounting device. Avoid setting it up on inclined or uneven factory grounds. Before setting it up, clear stones, debris, etc. from the ground to prevent the portable mounting device from being placed unevenly.

[0083] 2. Quality inspection of portable mounting devices

[0084] Inspect the quality of the portable needle holder itself, ensuring it is of regular shape, the needles are intact and not deformed, the prism is intact, and its surface is flat, without dents or bulges; check for obvious damage. If the portable needle holder has any problems, it should be replaced immediately.

[0085] Setup process:

[0086] When using a portable positioning device, the positioning point should be accurately centered. To center the device, first loosen the nut and then rotate the screw to adjust it until it is aligned with the positioning point. Then tighten the nut and adjust it to the center of the positioning point. This adjustment can be repeated once to make the portable positioning device more accurately centered. The error should be controlled within the specified accuracy range. For example, in normal measurement, the centering error should be less than 0.2mm.

[0087] In summary, the 30mm measurement error of the Leica 360° miniature prism is the result of a combination of factors. Under normal measurement conditions, the overall error may be within millimeters. However, in practical use, it is necessary to conduct error analysis and evaluation based on the actual situation and take corresponding measures to reduce the error, such as correctly setting instrument parameters and selecting a suitable measurement environment.

[0088] The performance analysis of the portable mounting device is as follows:

[0089] (I) Accuracy Testing

[0090] Through actual measurement experiments, compared with station boards, the portable target device can reduce errors caused by personnel setting up the target, structural errors of the target board itself, optical errors, and external environmental influences. When measuring the short side angle, the accuracy error of the portable target device can be within 1 to 3 seconds (within 0.15 mm), and the maximum distance measurement of the 360° prism can reach ≤1000 meters with an error of 1 mm, which greatly facilitates distance measurement and target finding in the field.

[0091] (II) Stability Assessment

[0092] The portable lamp holder is made of stainless steel, which is strong, stable, and rainproof. Each lamp holder is equipped with a multi-functional magnetic light, which can last up to 24 hours and can be used for nighttime work or as an emergency light in case of emergency at night.

[0093] (III) Anti-interference capability

[0094] The portable measuring device can measure distances in all weather conditions, including rain. It is resistant to minor vibrations and temperature changes do not significantly affect the measurement.

[0095] Application areas of portable mounting devices:

[0096] (I) Site Survey

[0097] Portable azimuth measuring devices are primarily used for aiming azimuth measurements and can be used for horizontal angle and distance measurements. Compared to target plates, using portable azimuth measuring devices improves the measurement accuracy at each site, reducing the measurement error to within 1 to 3 seconds, and saving at least 10 to 15 minutes of measurement time per site. This provides guaranteed accuracy for site measurements, increases measurement speed, and significantly saves operation time. During nighttime measurements, the portable azimuth measuring device is a small target, and the multi-functional magnetic light is installed inside the U-shaped steel frame, minimizing light exposure and achieving better concealment and camouflage.

[0098] In summary, this portable target acquisition device is simple and quick to operate, and its setup method is convenient. Compared with the traditional target acquisition method, it has advantages such as high accuracy, time saving, minimal target exposure, and ease of operation. The portable target acquisition device is easy to set up, and after simple training, it can meet the measurement requirements. Moreover, the setup time is short; after simple training, the setup personnel can complete the setup within 30 seconds. In areas with good visibility, it can replace the traditional target acquisition method to achieve rapid distance measurement at the site.

[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0100] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A portable mounting device, characterized in that, include: Frame; A connecting component, which is detachably connected to the frame; A needle, wherein the needle is detachably connected to one end of the connecting assembly located within the frame; The outer casing has a cubic structure with a hollow interior. The outer casing is detachably connected to the other end of the connecting assembly. Through holes are provided on the four sides of the outer casing along its circumferential direction. A prism assembly, which is mounted inside the housing.

2. The portable mounting device according to claim 1, characterized in that, The frame is U-shaped and made of stainless steel. The frame includes a longitudinal section and a first transverse section and a second transverse section respectively disposed at both ends of the longitudinal section. The connecting component is detachably connected to the first transverse section, and a rectangular opening is provided on the second transverse section.

3. The portable mounting device according to claim 2, characterized in that, It also includes a magnetic lamp, on which a magnetic plate is fixedly connected, and the magnetic lamp is magnetically connected to the bottom of the first horizontal part through the magnetic plate.

4. The portable mounting device according to claim 3, characterized in that, The connection component includes: A screw rod, wherein both ends of the screw rod are provided with screw holes, and the screw rod is threadedly connected to the first transverse portion; and A nut, which is threadedly connected to the screw.

5. The portable mounting device according to claim 4, characterized in that, The needle includes: A syringe, one end of which is fixedly provided with a second screw, the second screw being threadedly connected to a screw hole located at one end of the frame body; and The needle tip is fixedly connected to the other end of the syringe.

6. The portable mounting device according to claim 5, characterized in that, One end of the outer shell is open and the interior is hollow. The through holes are provided on the four sides of the outer shell in the circumferential direction.

7. The portable mounting device according to claim 6, characterized in that, The prism assembly includes: A lens mount, comprising a base and a top mount, wherein the base is adapted to the opening of the outer casing and is detachably connected to the opening of the outer casing; the top mount has a triangular structure, and connecting seats corresponding to the top mount are fixedly provided at the three corners of the base; connecting rods are mounted on the connecting seats, and the other end of the connecting rods is connected to the top mount; a third screw is fixedly connected to the bottom of the base, and the third screw is threadedly connected to the threaded hole at the end of the first screw away from the needle tip; and A 360-degree prism body, which is mounted on the base.

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