A surveying device for cultivated land

Abstract

The present invention provides a surveying and mapping device for cultivated land, which belongs to the technical field of surveying and mapping equipment. The technical scheme is as follows: it includes a main component and a sub-component, the main component includes a support plate 1, a fixing needle 1 is arranged on the lower side of the support plate, a vertical rod 1 is arranged on the upper side of the support plate 1, a circular plate 1 is arranged on the upper end of the vertical rod 1, a rotating shaft 1 is arranged on the circular plate 1, and a surveying and mapping ruler is wound around the outer periphery of the rotating shaft 1; the sub-component includes a support plate 2, a fixing needle 2 is arranged on the lower side of the support plate 2, a vertical rod 2 is arranged on the upper side of the support plate 2, and the free end of the surveying and mapping ruler is fixed on the vertical rod 2. The beneficial effects of the present invention are as follows: the present scheme has a simple structure and is easy to use, and the setting of the thin steel wire makes the surveying and mapping ruler not easily affected by the wind after being tightened, thereby ensuring the accuracy of the measurement results.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping equipment, and in particular to a surveying and mapping device for cultivated land. Background Art

[0002] Arable land is land formed by natural soil development, capable of growing crops, and providing a natural environment for their growth, development, and maturity. It is a fundamental resource for human survival. Arable land surveying and mapping involves using computer technology, optoelectronics technology, network communications technology, space science, and information science as a foundation, with the Global Positioning System (GPS), remote sensing (RS), and geographic information system (GIS) as its core technologies, to measure existing ground features and boundaries, obtaining graphical and location information reflecting the ground's current status.

[0003] Although the above-mentioned surveying and mapping methods with global positioning system (GPS), remote sensing (RS), and geographic information system (GIS) as the technical core can provide intelligent surveying and mapping, and can also provide various information, such as latitude and longitude, elevation and other information, the above-mentioned surveying and mapping methods are relatively costly for individual agricultural households. Farmers determine the amount of fertilizer and pesticide by measuring the area of ​​arable land, or divide the current arable land into areas with a certain area by measuring the length and width for planting various crops. Considering the cost reasons, the above-mentioned individual agricultural households are not suitable for adopting various high-tech surveying and mapping methods, and still rely on traditional surveying rulers for measurement. Since there are many uncertainties in the surveying and mapping process, such as in windy weather, the tape measure is easily offset in the middle after being stretched under the action of wind, thereby affecting the accuracy of surveying and mapping. For this reason, this application document provides a surveying and mapping device for arable land. Summary of the Invention

[0004] The object of the present invention is to provide a farmland surveying and mapping device which is simple to operate and can prevent windy weather from affecting the measurement accuracy.

[0005] The present invention is achieved by the following measures:

[0006] A surveying device for cultivated land, characterized in that it comprises a main component and a sub-component, the main component comprising a support plate, a fixing pin being provided on the lower side of the support plate, a vertical rod being provided on the upper side of the support plate, a circular plate being provided on the upper end of the vertical rod, a rotating shaft being provided on the circular plate, a surveying ruler being wound around the outer periphery of the rotating shaft, a receiving tube being provided on the circular plate for accommodating the surveying ruler, an opening being provided on the outer side of the accommodating tube for allowing the surveying ruler to pass through, the main component further comprising a coil spring, one end of the coil spring being provided on the inner end of the surveying ruler, and the other end of the coil spring being provided on the rotating shaft, the surveying ruler being easily retracted and tightened by the action of the coil spring, the coil spring being a prior art and not described in detail here;

[0007] The auxiliary component includes a second support plate, a second fixing pin is provided on the lower side of the second support plate, a second vertical rod is provided on the upper side of the second support plate, and the free end of the surveying ruler is fixed on the second vertical rod.

[0008] The specific features of the present invention also include:

[0009] The first vertical rod is provided with a support plate 1, the first support plate is provided with a vertical plate, the vertical plate is provided with a through transverse narrow slot, the free end of the surveying ruler is folded in half and passed through the narrow slot, and then is provided on the second vertical rod;

[0010] Scale marks are provided on both the upper and lower sides of the folded surveying ruler, and the scale marks facilitate the measurement of the length of certain plots in the middle after the surveying ruler is stretched;

[0011] A second scale is provided on the inner side of the surveying ruler when it is folded in half. The second scale is used to measure the entire length of the surveying ruler after it is stretched. The first scale corresponds to the second scale, and the two scales are provided only for the convenience of reading.

[0012] The upper and lower sides of the side surface of the surveying ruler folded inward are provided with matching adhesive parts, and the folded surveying ruler is firmly adhered by the adhesive parts. In this embodiment, the adhesive part is Velcro, and the upper side of the corresponding side surface of the surveying ruler is provided with a parent surface of the Velcro, and the lower side of the corresponding side surface is provided with a child surface of the Velcro. In this way, when the surveying ruler is folded in half and squeezed by the narrow groove, the parent and child surfaces of the Velcro adhere to each other to form a firm fixation.

[0013] A bracket plate 2 is provided on the bracket plate 1, and a triangular block is provided on the bracket plate 2. The triangular block is provided in a gap formed before the surveying ruler is completely folded in half at the rear side of the narrow slot away from the auxiliary component. When the surveying ruler is recovered after use under the action of the winding spring 1, the triangular block separates the male and female surfaces of the Velcro, thereby allowing the surveying ruler to be smoothly wound on the rotating shaft.

[0014] A vertical rod three is provided on the upper side of the support plate one, a circular plate two is provided on the upper end of the vertical rod three, a rotating shaft two is provided on the circular plate two, a thin steel wire is wound around the outer periphery of the rotating shaft two, the free end of the thin steel wire passes around the triangular block and penetrates into the inner bottom of the folded surveying ruler, the free end of the thin steel wire passes through the surveying ruler and is fixed to the vertical rod two, a accommodating tube two for accommodating the thin steel wire is provided on the circular plate two, an opening is provided on the outer side surface of the accommodating tube two for allowing the thin steel wire to pass through, and further the main component also includes a coil spring two, one end of the coil spring two is provided on the inner end of the thin steel wire, and the other end of the coil spring two is provided on the rotating shaft two, the thin steel wire can be easily recovered and tightened by the action of the coil spring two, and the coil spring two is a prior art and will not be described in detail here.

[0015] The outer side surface of the triangular block is provided with an arc-shaped groove matched with the thin steel wire, and the thin steel wire is arranged in the arc-shaped groove and slides along the groove.

[0016] A pointer for convenient reading of the second scale is provided on one side of the vertical rod.

[0017] Semi-arc plates are hinged on both sides of the support plate one and the support plate two, and fixing pins three are slidably provided on the four groups of semi-arc plates. The semi-arc plates are used to increase the contact area with the ground. Since some grounds are relatively soft, a large ground contact area can increase the firmness of the device. After the semi-arc plates are unfolded, the fixing pins three are inserted into the ground to achieve fixation.

[0018] Auxiliary rods are provided on the vertical rod 1, the vertical rod 2 and the vertical rod 3, and magnet 1 is provided at both ends of the auxiliary rod. A matching metal plate is provided on the side surface of the semi-arc plate. When storing, the semi-arc plate can be folded and fixed by the adsorption effect of magnet 1 and the metal plate.

[0019] The upper end surface of the fixing needle three is provided with a magnet two that cooperates with the metal plate. When storing, the fixing needle three on one side of the semi-arc plate is slid until the rear end is adsorbed on the metal plate on the other side of the semi-arc plate.

[0020] The upper end surface of the second rotating shaft is provided with an oblong hole that passes through the second circular plate. The second circular plate is provided with a threaded hole coaxial with the oblong hole. A long bolt is movably provided through the oblong hole. The lower end of the long bolt is screwed into the threaded hole. When the surveying ruler is stretched to the required length, the long bolt is tightened to fix the second rotating shaft, so that the thin steel wire is no longer pulled, and the thin steel wire can be tightened by moving the secondary main part.

[0021] When in use, first unfold the two semi-arc plates on the main component, then place it on the ground and insert the fixing pin 1 and the fixing pin 3 into the ground to fix them. Then, hold the auxiliary component and pull the surveying ruler to the specified position, tighten the thin steel wire and the surveying ruler, then insert the fixing pin 2 and the corresponding fixing pin 3 into the ground to fix them, and then read the scale 2 indicated by the pointer, which is the measured length of the ground.

[0022] The beneficial effects of the present invention are as follows: the present solution has a simple structure and is easy to use; the provision of the thin steel wire makes it less susceptible to wind influence after the surveying ruler is tightened, thereby ensuring the accuracy of the measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall structure from another perspective of an embodiment of the present invention.

[0025] Figure 3 for Figure 2 A magnified view of the middle panel.

[0026] Among them, the accompanying drawings are marked as follows: 1. Fixing needle 1; 2. Support plate 1; 3. Semi-arc plate; 4. Fixing needle 3; 5. Vertical rod 3; 6. Vertical rod 1; 7. Rotating shaft 2; 8. Long bolt; 9. Rotating shaft 1; 10. Thin steel wire; 11. Triangular block; 12. Surveying ruler; 13. Vertical plate; 14. Vertical rod 2; 15. Support plate 2; 16. Fixing needle 2; 17. Pointer; 18. Magnet 1; 19. Round plate 2; 20. Round plate 1. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0031] See also Figure 1-Figure 3 A surveying and mapping device for cultivated land includes a main component and a sub-component, the main component includes a support plate 2, a fixing needle 1 is provided on the lower side of the support plate, a vertical rod 6 is provided on the upper side of the support plate 2, a circular plate 20 is provided on the upper end of the vertical rod 6, a rotating shaft 9 is provided on the circular plate 20, a surveying ruler 12 is wound around the outer periphery of the rotating shaft 9, a receiving tube 1 for accommodating the surveying ruler 12 is provided on the circular plate 20, and an opening for allowing the surveying ruler 12 to pass through is provided on the outer side of the receiving tube, and the main component further includes a coil spring 1, one end of the coil spring 1 is provided on the inner end of the surveying ruler 12, and the other end of the coil spring 1 is provided on the rotating shaft 9. The surveying ruler 12 can be easily recovered and tightened by the action of the coil spring 1. The coil spring 1 is a prior art and will not be described in detail here;

[0032] The auxiliary component includes a second support plate 15 , a second fixing pin 16 is provided on the lower side of the second support plate 15 , a second vertical rod 14 is provided on the upper side of the second support plate 15 , and the free end of the surveying ruler 12 is fixed on the second vertical rod 14 .

[0033] A support plate 1 is provided on the vertical rod 1 6, a vertical plate 13 is provided on the support plate 1, and a through-going narrow transverse slot is provided on the vertical plate 13. The free end of the surveying ruler 12 is folded in half and passed through the narrow slot, and then is provided on the vertical rod 2 14;

[0034] Scale marks are provided on both the upper and lower sides of the folded surveying ruler 12, which facilitate the measurement of the length of certain plots in the middle after the surveying ruler 12 is stretched;

[0035] A second scale is provided on the inner side of the folded surveying ruler 12. The second scale is used to measure the entire length of the surveying ruler 12 after it is stretched. The first scale corresponds to the second scale, and the two scales are provided only for the convenience of reading.

[0036] The upper and lower sides of the inner side of the surveying ruler 12 are provided with matching adhesive parts, and the folded surveying ruler 12 is firmly adhered by the adhesive parts. In this embodiment, the adhesive part is Velcro, and the upper side of the corresponding side of the surveying ruler 12 is provided with a mother surface of the Velcro, and the lower side of the corresponding side is provided with a child surface of the Velcro. In this way, the surveying ruler 12 is folded in half and under the squeezing action of the narrow groove, the mother and child surfaces of the Velcro adhere to each other to form a firm fixation.

[0037] A bracket plate 2 is provided on the bracket plate 1, and a triangular block 11 is provided on the bracket plate 2. The triangular block 11 is arranged in the gap formed before the surveying ruler 12 is completely folded in the narrow slot away from the rear side of the auxiliary component. When the surveying ruler 12 is used up and recovered under the action of the winding spring 1, the triangular block 11 separates the parent and child surfaces of the Velcro, so that the surveying ruler 12 can be smoothly wound on the rotating shaft.

[0038] A vertical rod three 5 is provided on the side surface of the support plate one 2, and a circular plate two 19 is provided on the upper end of the vertical rod three 5. A rotating shaft two 7 is provided on the circular plate two 19. A thin steel wire 10 is wound around the outer periphery of the rotating shaft two 7. The free end of the thin steel wire 10 passes around the triangular block 11 and penetrates into the inner bottom of the folded surveying ruler 12. The free end of the thin steel wire 10 passes through the surveying ruler 12 and is fixed on the vertical rod two 14. A accommodating tube two for accommodating the thin steel wire 10 is provided on the circular plate two 19, and an opening for allowing the thin steel wire 10 to pass through is provided on the outer surface of the accommodating tube two. Further main components also include a coil spring two, one end of the coil spring two is provided on the inner end of the thin steel wire 10, and the other end of the coil spring two is provided on the rotating shaft two 7. The thin steel wire 10 can be easily recovered and tightened by the action of the coil spring two. The coil spring two is a prior art and will not be described in detail here.

[0039] The outer side surface of the triangular block 11 is provided with an arc-shaped groove that matches the thin steel wire 10. The thin steel wire 10 is arranged in the arc-shaped groove and slides along it.

[0040] A pointer 17 is provided on one side of the vertical rod 1 6 for convenient reading of the scale 2.

[0041] Semi-arc plates 3 are hinged on both sides of support plate 1 2 and support plate 2 15. Fixing pins 3 4 are slidably provided on the four groups of semi-arc plates 3. The semi-arc plates 3 are used to increase the contact area with the ground. Since some ground is relatively soft, a large contact area can increase the firmness of the device. After the semi-arc plates 3 are unfolded, the fixing pins 3 4 are inserted into the ground to achieve fixation.

[0042] Auxiliary rods are provided on vertical rod 1 6, vertical rod 2 14 and vertical rod 3 5, and magnets 18 are provided at both ends of the auxiliary rods. Matching metal plates are provided on the upper side of the semi-arc plate 3. When storing, the semi-arc plate 3 can be folded and fixed by the adsorption effect of magnet 18 and the metal plate.

[0043] The upper end surface of the fixing needle three 4 is provided with a magnet two that cooperates with the metal plate. When storing, the fixing needle three 4 on one side of the semi-arc plate 3 is slid until the rear end is adsorbed on the metal plate on the other side of the semi-arc plate 3.

[0044] An oblong hole is provided on the upper end face of the rotating shaft 7 and passes through the circular plate 2 19. A threaded hole coaxial with the oblong hole is provided on the circular plate 19. A long bolt 8 is movably provided through the oblong hole. The lower end of the long bolt 8 is screwed into the threaded hole. When the surveying ruler 12 is stretched to the required length, the long bolt 8 is tightened to fix the rotating shaft 2 7, so that the thin steel wire 10 is no longer pulled, and the thin steel wire 10 can be tightened by moving the secondary main part.

[0045] When in use, first unfold the two semi-arc plates 3 on the main component, then place it on the ground and insert the fixing pin 1 and the fixing pin 3 4 into the ground for fixation. Then, hold the auxiliary component and pull the surveying ruler 12 to the specified position, tighten the thin steel wire 10 and the surveying ruler 12, then insert the fixing pin 2 16 and the corresponding fixing pin 3 4 into the ground for fixation, and then read the scale 2 indicated by the pointer 17, which is the measured length of the ground.

[0046] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A surveying and mapping device for cultivated land, characterized in that: It comprises a main component and a sub-component, the main component comprising a support plate (2), a fixing pin (1) is arranged on the lower side of the support plate, a vertical rod (6) is arranged on the upper side of the support plate (2), a circular plate (1) is arranged on the upper end of the vertical rod (6), a rotating shaft (9) is arranged on the circular plate, and a surveying ruler (12) is wound around the outer periphery of the rotating shaft (9); The auxiliary component comprises a second support plate (15), a second fixing pin (16) is arranged on the lower side of the second support plate (15), a second vertical rod (14) is arranged on the upper side of the second support plate (15), and the free end of the surveying ruler (12) is fixed on the second vertical rod (14); A support plate 1 is arranged on the vertical rod 1 (6), a vertical plate (13) is arranged on the support plate 1, a through transverse narrow groove is arranged on the vertical plate (13), and the free end of the surveying ruler (12) is folded in half and passes through the narrow groove; The folded surveying ruler (12) is provided with scale marks on both upper and lower sides thereof; The surveying ruler (12) is folded inwardly and has a second scale on its side; The upper and lower sides of the side surface of the surveying ruler (12) folded inward are provided with matching adhesive portions; The support plate 1 is provided with a support plate 2, and the support plate 2 is provided with a triangular block (11), and the triangular block (11) is arranged in a gap formed before the surveying ruler (12) is completely folded in half at the rear side of the narrow groove away from the auxiliary component; A vertical rod three (5) is arranged on the upper side of the support plate one (2), a circular plate two is arranged on the upper end of the vertical rod three (5), a rotating shaft two (7) is arranged on the circular plate two, a thin steel wire (10) is wound around the outer periphery of the rotating shaft two (7), the free end of the thin steel wire (10) passes around the triangular block (11) and then penetrates into the inner bottom of the folded surveying ruler (12), and the free end of the thin steel wire (10) passes through the surveying ruler (12) and then is fixed on the vertical rod two (14); The outer side surface of the triangular block (11) is provided with an arc-shaped groove that matches the thin steel wire (10).

2. The arable land surveying device according to claim 1, characterized in that: A pointer (17) is arranged on one side of the vertical rod (6) for convenient reading of the second scale.

3. The arable land surveying device according to claim 1, characterized in that: The support plate 1 (2) and the support plate 2 (15) are both hingedly connected with semi-arc plates (3), and the four groups of semi-arc plates (3) are all slidably provided with fixing pins 3 (4).

4. The arable land surveying device according to claim 3, characterized in that: The vertical rod 1 (6), Auxiliary rods are arranged on the second vertical rod (14) and the third vertical rod (5), and magnets are arranged on both ends of the auxiliary rods. A matching metal plate is arranged on the upper side of the semi-arc plate (3).

5. The arable land surveying device according to claim 4, characterized in that: The upper end surface of the fixing needle three (4) is provided with a magnet two which cooperates with the metal plate.

6. The arable land surveying device according to claim 5, characterized in that: The upper end surface of the second rotating shaft (7) is provided with an oblong hole penetrating to the second circular plate, and the second circular plate is provided with a threaded hole coaxial with the oblong hole, and a long bolt (8) is movably provided through the oblong hole, and the lower end of the long bolt (8) is screwed into the threaded hole.

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