Level gauge for land planning and surveying and mapping of territorial space

Abstract

The utility model relates to the technical field of level gauges, and discloses a level gauge for territorial space land planning surveying and mapping, which comprises a base, a through hole is arranged at the bottom of the base, a horizontal table is rotatably connected inside the base, and the lower end of the horizontal table penetrates through the through hole and is fixedly connected with a gravity ball. Positioning blocks are slidably connected to the interiors of the front, rear, left and right side faces of the base, one end of each positioning block penetrates through the base to be slidably connected with a positioning groove, the positioning grooves are formed in the outer wall of a horizontal table, a tripod is fixedly arranged at the bottom of the base, and a level gauge is arranged at the top of the horizontal table. According to the utility model, through the horizontal table, the gravity ball, the universal ball and the magnetic damper, the horizontal table rotates in the base, and the top of the horizontal table is flush with the horizontal plane and is rapid and stable; the surveying and mapping data are recorded through the theodolite I, the theodolite II and the laser range finder, so that the measurement precision and the leveling efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of leveling instrument technology, and in particular to a leveling instrument used for land planning and surveying of national land space. Background Technology

[0002] As an indispensable tool in surveying work, the accuracy and stability of a level instrument directly affect the accuracy of surveying results. However, in practical applications, the support structure of the level instrument often becomes one of the key factors affecting measurement accuracy and efficiency.

[0003] Currently, most leveling instrument supports on the market adopt a triangular structure, supported by three legs on the ground to ensure the stability and accuracy of the level. However, this type of support has many shortcomings in practical applications. Especially in environments with uneven or potholed ground, the legs often become of different lengths due to the unevenness of the ground, causing the level to fail to maintain a level position. To adjust the leveling angle, operators need to spend a lot of time and effort repeatedly adjusting and calibrating each leg, making the leveling efficiency very low. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a level instrument for land planning and mapping, aiming to improve the efficiency of level instrument leveling.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a level instrument for land use planning and mapping, comprising a base, wherein the interior of the base is a hemispherical hollow structure, and the hemispherical cross-section of the hollow structure is flush with the top of the base; a through hole is provided at the bottom of the base; a water platform is rotatably connected inside the base; the water platform is hemispherical in shape, with the hemispherical cross-section facing upwards; a gravity ball is fixedly connected to the lower end of the water platform through the through hole; positioning blocks are slidably connected to the interior of the front, back, left, and right sides of the base; one end of each positioning block is slidably connected to a positioning groove through the base; the positioning groove is set on the outer wall of the water platform; a tripod is fixedly installed at the bottom of the base; and a level instrument is installed at the top of the water platform.

[0006] Preferably, the lower outer wall of the water platform is slidably connected with a universal ball bearing, and the lower outer wall of the water platform is provided with a magnetic damper. The universal ball bearing and the magnetic damper are disposed on the inner top wall of the base.

[0007] Preferably, a limiting rope is fixedly connected to the middle position of the tripod, a cone foot is fixedly connected to the lower end of the tripod, and an anti-sinking ring is fixedly connected to the lower end of the tripod. The anti-sinking ring is located at the connection between the tripod and the cone foot.

[0008] Preferably, the top of the water platform is provided with a fixing hole, the inner wall of the fixing hole is slidably connected to a base, and four connecting columns are evenly distributed at the bottom of the base, with the connecting columns at the bottom of the base slidably connected to the fixing hole.

[0009] Preferably, the level instrument has a telescope inside, with both ends of the telescope passing through the front and rear sides of the level instrument, and the top of the base is rotatably connected to the bottom of the level instrument.

[0010] Preferably, the level is provided with adjustment buttons on both the left and right sides, and a bubble level is fixedly connected to the top of the level.

[0011] Preferably, a laser rangefinder is provided on the front side of the level, and a theodolite is fixedly connected to the top of the level.

[0012] Preferably, it also includes a leveling rod, the upper end of which is fixedly connected to a theodolite II, and the leveling rod is provided with scale lines.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the water platform is rotated inside the base by the gravity traction of the gravity ball, and the top of the water platform approaches the horizontal plane. Under the action of the magnetic damper, the stabilization time of the water platform is accelerated. Then, the positioning block and positioning groove are used to fix the water platform in the horizontal state, thereby improving the leveling efficiency.

[0015] 2. In this utility model, the level is finely adjusted by using two adjustment buttons and a reference level bubble meter, so that the level can be quickly adjusted when the tripod shifts during the surveying process, thereby improving the leveling efficiency during the surveying process.

[0016] 3. In this utility model, the coordinate positions of the survey point and the target point are recorded by theodolite one and theodolite two, and the distance to the target point is measured and recorded by laser rangefinder, so as to complete the recording of coordinate information and distance of multiple target points, avoid repeated measurement, and improve the measurement accuracy. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the level instrument for land planning and mapping proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the base structure of the level instrument for land planning and mapping proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the water platform structure of the level instrument used for land planning and surveying proposed in this utility model.

[0020] Legend:

[0021] 1. Adjustment button; 2. Level; 3. Level bubble; 4. Theodolite I; 5. Telescope; 6. Laser rangefinder; 7. Base; 8. Theodolite II; 9. Leveling rod; 10. Scale line; 11. Conical foot; 12. Anti-sinking ring; 13. Tripod; 14. Limiting rope; 15. Gravity ball; 16. Positioning block; 17. Base; 18. Universal ball bearing; 19. Through hole; 20. Magnetic damper; 21. Fixing hole; 22. Level platform; 23. Positioning groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1-3 An embodiment of this utility model provides a level instrument for land planning and mapping, including a base 17. The interior of the base 17 is a hemispherical hollow structure, and the hemispherical cross-section of the hollow structure is flush with the top of the base 17. A through hole 19 is provided at the bottom of the base 17. A water platform 22 is rotatably connected inside the base 17. The water platform 22 is hemispherical in shape, and the hemispherical cross-section faces upward. A gravity ball 15 is fixedly connected to the lower end of the water platform 22 through the through hole 19. Positioning blocks 16 are slidably connected to the interior of the front, back, left and right sides of the base 17. One end of the positioning block 16 is slidably connected to a positioning groove 23 through the base 17. The positioning groove 23 is set on the outer wall of the water platform 22. A tripod 13 is fixedly set at the bottom of the base 17. A level instrument 2 is set at the top of the water platform 22.

[0024] In this embodiment, Figure 1 The orientation is determined by the front, back, left, and right sides. Specifically, when performing the operation, the tripod 13 is spread out and placed stably on the ground. The gravity ball 15 pulls on the center of gravity of the water platform 22, and the water platform 22 is rotated through the base 17. The top of the water platform 22 moves closer to the horizontal plane. After the water platform 22 is stable, the positioning blocks 16 around the base 17 are pushed, so that one end of the positioning block 16 is inserted into the positioning groove 23 on the water platform 22, thereby fixing the water platform 22. The level instrument 2 is then placed on the water platform 22, which improves the leveling efficiency of the level instrument 2.

[0025] Reference Figure 2The lower outer wall of the water platform 22 is slidably connected with a universal ball bearing 18, and a magnetic damper 20 is provided on the lower outer wall of the water platform 22. The universal ball bearing 18 and the magnetic damper 20 are provided on the inner top wall of the base 17.

[0026] Specifically, the lower side of the water platform 22 is made of magnetic material. After the tripod 13 is stabilized, the water platform 22 rotates inside the base 17 through the universal ball bearing 18 under the traction of the gravity ball 15, and the top of the water platform 22 approaches the horizontal plane. Under the action of the magnetic damper 20, the stabilization time of the water platform 22 is accelerated, and the leveling efficiency is improved.

[0027] Reference Figure 1 A limiting rope 14 is fixedly connected to the middle position of the tripod 13, a cone foot 11 is fixedly connected to the lower end of the tripod 13, and an anti-sinking ring 12 is fixedly connected to the lower end of the tripod 13. The anti-sinking ring 12 is set at the connection between the tripod 13 and the cone foot 11.

[0028] Specifically, when placing the tripod 13, the cone feet 11 allow the tripod 13 to be quickly inserted into the ground. In a soft ground environment, the anti-sinking ring 12 increases the contact area with the ground, preventing the tripod 13 from sinking into the ground. The limiting rope 14 limits the angle of the tripod 13 to prevent it from tilting, thus achieving quick fixation of the tripod 13.

[0029] Reference Figure 1 The top of the water platform 22 is provided with a fixing hole 21. The inner wall of the fixing hole 21 is slidably connected to the base 7. Four connecting columns are evenly distributed at the bottom of the base 7. The connecting columns at the bottom of the base 7 are slidably connected to the fixing hole 21.

[0030] Specifically, after the tripod 13 and the platform 22 are adjusted, the connecting column at the bottom of the base 7 is inserted into the fixing hole 21 at the top of the platform 22 to prevent the level 2 from slipping and improve the safety of the device.

[0031] Reference Figure 1 The level instrument 2 is equipped with a telescope 5 inside. The two ends of the telescope 5 pass through the front and rear sides of the level instrument 2 respectively. The top of the base 7 is rotatably connected to the bottom of the level instrument 2. Specifically, when the surveying begins, the level instrument 2 is rotated through the rotatable connection between the base 7 and the level instrument 2, which in turn causes the telescope 5 to rotate in the same direction to the direction to be measured, so as to observe the target and realize the multi-angle measurement function of the device.

[0032] Reference Figure 1The level instrument 2 is equipped with adjustment buttons 1 on both the left and right sides, and a bubble level 3 is fixedly connected to the top of the level instrument 2. Specifically, during the surveying process, when the tripod 13 shifts due to some reason, the adjustment of the gravity ball 15 fails because the positioning block 16 fixes the platform 22. At this time, by rotating the two adjustment buttons 1 and referring to the position of the bubble on the bubble level 3, the level instrument 2 can be finely adjusted to be horizontal, and the measurement work can continue. This reduces the leveling steps and improves work efficiency.

[0033] Reference Figure 1 A laser rangefinder 6 is installed on the front side of the level instrument 2, and a theodolite 4 is fixedly connected to the top of the level instrument 2. Specifically, after the survey point is selected, the coordinate position of the survey point is recorded by the theodolite 4, and the distance to the target point can be measured by the laser rangefinder 6, which improves the efficiency and convenience of surveying work.

[0034] Referring to the figure, it also includes a leveling rod 9, with a theodolite 2 8 fixedly connected to the upper end of the leveling rod 9. The leveling rod 9 is equipped with scale lines 10. Specifically, when multiple target points need to be measured, the leveling rod 9 is used to observe multiple points by rotating the surveying instrument 2 and the telescope 5, and the values ​​on the scale lines 10 are read and recorded to obtain the horizontal difference of the target points. The coordinate information of multiple target points is recorded by the theodolite 2 8 to avoid repeated measurements and improve work efficiency.

[0035] Working principle: During surveying operations, the tripod 13 is quickly inserted into the ground via the conical foot 11. The anti-sinking ring 12 increases the contact area with the ground, and the limiting rope 14 restricts the angle of the tripod 13's extension, thus firmly placing the tripod 13 on the ground. Under the traction of gravity ball 15, the horizontal platform 22 rotates inside the base 17 via the universal ball bearing 18, causing the top of the horizontal platform 22 to move closer to the horizontal plane. The magnetic damper 20 reduces the rotation speed of the horizontal platform 22, accelerating its stabilization time. The positioning blocks 16 around the base 17 are pushed, causing one end of the positioning block 16 to engage in the positioning groove 23 on the horizontal platform 22, ensuring a horizontal position. The water platform 22 is fixed, and the connecting column at the bottom of the base 7 is inserted into the fixing hole 21 at the top of the water platform 22. Through the rotational connection between the base 7 and the level 2, the level 2 is rotated, which in turn causes the telescope 5 to rotate in the same direction. The coordinates of the survey point and the target point are recorded by the theodolite 1 4 and the theodolite 2 8. The distance to the target point is measured and recorded by the laser rangefinder 6. The scale line 10 on the leveling rod 9 at the target point is observed by the telescope 5 and the value is recorded. When the tripod 13 shifts due to some reason, the level 2 can be finely adjusted by referring to the level bubble meter 3 through the two adjustment buttons 1. Thus, the level adjustment efficiency of the level 2 is improved.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A level for land planning and surveying of territorial space, comprising a base (17), characterized in that: The inside of the base (17) is a hollow structure of semispherical shape, and the semispherical section of the hollow structure is flush with the top of the base (17), the bottom of the base (17) is provided with a through hole (19), the inside of the base (17) is rotatably connected with a water platform (22), the water platform (22) is semispherical in shape, and the semispherical section is upward, the lower end of the water platform (22) is fixedly connected with a gravity ball (15) penetrating through the through hole (19), the inside of the front, rear, left and right sides of the base (17) is slidably connected with a positioning block (16), one end of the positioning block (16) is slidably connected with a positioning groove (23) penetrating through the base (17), the positioning groove (23) is arranged on the outer wall of the water platform (22), and the bottom of the base (17) is fixedly provided with a tripod (13), and the top of the water platform (22) is provided with a level (2).

2. The terrestrial space land planning surveying level according to claim 1, characterized in that: The lower outer wall of the water platform (22) is slidably connected with a universal ball (18), and the lower outer wall of the water platform (22) is provided with a magnetic damper (20), and the universal ball (18) and the magnetic damper (20) are arranged on the inner top wall of the base (17).

3. The terrestrial space land planning surveying level according to claim 1, characterized in that: The middle position of the tripod (13) is fixedly connected with a limiting rope (14), the lower end of the tripod (13) is fixedly connected with a tapered foot (11), the lower end of the tripod (13) is fixedly connected with an anti-trapping ring (12), and the anti-trapping ring (12) is arranged at the connection between the tripod (13) and the tapered foot (11).

4. The terrestrial space land planning and mapping level of claim 1, wherein: The top of the water platform (22) is provided with a fixing hole (21), the inner wall of the fixing hole (21) is slidably connected with a base (7), the bottom of the base (7) is uniformly distributed with four connecting columns, and the connecting columns at the bottom of the base (7) are slidably connected with the fixing hole (21).

5. The terrestrial space land planning and mapping level of claim 4, wherein: The inside of the level (2) is provided with a telescope (5), both ends of the telescope (5) penetrate through the front and rear sides of the level (2), and the top of the base (7) is rotatably connected to the bottom of the level (2).

6. The terrestrial space land planning and mapping level of claim 1, wherein: The left side and the right side of the level (2) are provided with adjusting buttons (1), and the top of the level (2) is fixedly connected with a level bubble instrument (3).

7. The terrestrial space land planning and mapping level of claim 1, wherein: The front side of the level (2) is provided with a laser range finder (6), and the top of the level (2) is fixedly connected with a theodolite (4).

8. The terrestrial space land planning and mapping level of claim 1, wherein: A staff (9) is further included, the upper end of the staff (9) is fixedly connected with a theodolite (8), and the staff (9) is provided with a scale line (10).

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