Simple distance measuring device for geographic information surveying and mapping

Abstract

The utility model discloses a simple distance measuring device for geographic information surveying and mapping, which comprises a sleeve, a laser emission source, a light blocking sheet, a spherical hinge, a support and a laser screen board, the sleeve is provided with a groove and a first scale, the light blocking sheet is provided with a sliding block, a scale needle and a cross seam, the sliding block is clamped in the groove, and the scale needle is arranged on the support. And the distance between the light blocking sheet and the laser emission source can be adjusted by moving back and forth in the groove. The laser emission source can emit green laser, and the green laser has better visibility in a strong light field environment. According to the technical scheme, the simple distance measuring device for geographic information surveying and mapping utilizes the similar triangle principle to measure distance, is simple in structure and low in manufacturing cost, and can effectively solve the problem that a distance measuring instrument is high in price.

Description

Technical Field

[0001] This utility model relates to the field of surveying equipment technology, and in particular to a simple distance measuring device for geographic information surveying. Background Technology

[0002] In geographic surveying, distance measuring instruments are crucial tools. They are widely used in land surveying, construction engineering, road planning, and other fields to help professionals obtain distance data, thereby ensuring the accuracy and compliance of projects. Common distance measuring instruments on the market include laser rangefinders and total stations; however, they are generally quite expensive.

[0003] This technical solution proposes a simple distance measuring device for geographic information mapping. It has a simple structure and low manufacturing cost, which can effectively solve the problem of expensive distance measuring instruments. Utility Model Content

[0004] The purpose of this invention is to provide a simple distance measuring device for geographic information surveying, which can effectively solve the problems in the background art. A simple distance measuring device for geographic information surveying comprises a sleeve, a laser emission source, a light-blocking plate, a ball joint, a support, and a laser screen; the sleeve is hinged to the support via the ball joint.

[0005] Furthermore, the sleeve is provided with a groove and a first scale, and the light-blocking plate is provided with a slider, a scale needle and a cross slit. The slider is stuck in the groove and can move back and forth in the groove to adjust the distance between the light-blocking plate and the laser emission source.

[0006] Furthermore, the "0" mark on the first scale of the sleeve is flush with the laser emission source.

[0007] Furthermore, the laser emission source is located at the rear of the sleeve, and can emit green laser light towards the front of the sleeve.

[0008] Furthermore, the laser screen panel is provided with a second scale, and the color of the laser screen panel (6) is set to a dark color, such as black or dark brown. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the light-blocking plate adjustment of this utility model.

[0011] Figure 3 This is a schematic diagram of the laser screen panel of this utility model.

[0012] Figure 4 This is a schematic diagram of the light-blocking sheet of this utility model.

[0013] Among them: 1. Sleeve; 11. Groove; 12. First scale; 2. Laser emission source; 3. Light blocking plate; 31. Slider; 32. Scale needle; 33. Cross slit; 4. Ball joint; 5. Bracket; 6. Laser screen panel; 61. Second scale. Detailed Implementation

[0014] The purpose of this utility model is to provide a simple distance measuring device for geographic information surveying. The technical solution adopted by this utility model is as follows: a simple distance measuring device for geographic information surveying, comprising a sleeve 1, a laser emission source 2, a light blocking plate 3, a ball hinge 4, a bracket 5, and a laser screen 6; the sleeve 1 is hinged to the bracket 5 through the ball hinge 4.

[0015] Furthermore, the sleeve 1 is provided with a groove 11 and a first scale 12, and the light-blocking plate 3 is provided with a slider 31, a scale needle 32, and a cross slit 33. The slider 31 is stuck in the groove 11 and can move back and forth in the groove 11 to adjust the distance between the light-blocking plate 3 and the laser emission source 2.

[0016] Furthermore, the "0" mark on the first scale 12 of the sleeve 1 is flush with the laser emission source 2.

[0017] Furthermore, the laser emission source 2 is located at the rear of the sleeve and can emit green laser light towards the front of the sleeve 1. Green laser light has better visibility in bright outdoor environments.

[0018] Furthermore, the laser screen panel 6 is provided with a second scale 61, and the color of the laser screen panel (6) is set to a dark color, such as black or dark brown.

[0019] This utility model requires two workers to operate, and can be carried out by following these steps.

[0020] Step 1: A staff member places the laser screen 6 on the area to be measured;

[0021] Step 2: Another staff member observes the placement of bracket 5 and adjusts the direction of sleeve 1 through ball hinge 4 so that sleeve 1 faces the laser screen panel 6 at the measurement point;

[0022] Step 3: Turn on the laser emission source 2, adjust the position of the light-blocking plate by slider 31, so that the green laser forms a cross-shaped beam after passing through the cross slit 33 and hits the laser screen panel 6.

[0023] Step 4: Further fine-tune the ball hinge 4 to align the cross-shaped beam with the scale of the laser screen panel 6.

[0024] Fifth step: Given that the length of the two slits forming the cross slit 33 is h, observe the scale indicated by the pointer 32 (l), and the lengths H1 and H2 of the two beams on the laser screen 6. From this, the measurement distance can be calculated as follows:

Claims

1. A simple distance measuring device for geographic information mapping, comprising a sleeve (1), a laser emission source (2), a light-blocking plate (3), a ball hinge (4), a bracket (5), and a laser screen (6); characterized in that: The sleeve (1) is hinged to the bracket (5) by a ball joint (4). The sleeve (1) is provided with a groove (11) and a first scale (12). The light-blocking plate (3) is provided with a slider (31), a scale needle (32) and a cross slit (33). The slider (31) is stuck in the groove (11) and can move back and forth in the groove (11) to adjust the distance between the light-blocking plate (3) and the laser emission source (2). The cross slit (33) is composed of two orthogonal slits with the same width and length. The laser emission source (2) is located at the rear of the sleeve (1) and can emit green light to the front of the sleeve (1). The laser screen plate (6) is provided with a second scale (61).

2. The simplified distance measuring device for geographic information mapping according to claim 1, characterized in that: The "0" mark on the first scale (12) of the sleeve (1) is flush with the laser emission source (2).

Images