Portable surveying and mapping level gauge convenient to level

Abstract

The utility model discloses a portable surveying and mapping level gauge convenient to level, which comprises a level gauge body, and the level gauge body is mounted at the top of a tripod through a leveling mechanism; the leveling mechanism comprises a leveling mechanism supporting spherical shell rotationally connected to the top of the tripod in a spherical surface mode. The leveling supporting plate is fixedly connected with the top of the tripod and arranged in the leveling mechanism supporting spherical shell, a vertical calibration pipe with an upward opening is connected to the leveling supporting plate, a plumb weight ball is fixed to the lower end of the vertical calibration pipe, and a vertical calibration reflecting mirror is fixed in the vertical calibration pipe; the device is provided with a high-efficiency leveling mechanism, and a beam of laser is reflected back and forth and irradiated on the leveling dial to guide the leveling observation support tube and the vertical calibration tube to be in a coaxial state, so that the leveling work is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying and mapping, in particular to a portable surveying and mapping level which is convenient for leveling. Background Art

[0002] A level is an instrument used to establish a horizontal line of sight and measure the elevation difference between two points on the ground. It works based on the principles of leveling. Its main components include a telescope, a tube level (or compensator), a vertical axis, a base, and screws. Levels are categorized by structure as micro-tilt levels, automatic leveling levels, laser levels, and digital levels (also known as electronic levels). Levels are also categorized by accuracy as precision levels and standard levels.

[0003] In topographic surveying, the level is a crucial tool for establishing an elevation control network. By setting up multiple leveling points within a specific area and measuring them with the level, the elevation of each point can be determined, thereby establishing an elevation control network for the area.

[0004] The level needs to be precisely leveled before use to ensure accurate measurements. However, leveling the level can be a difficult task for beginners, and it can take more time and effort on uneven terrain or in strong winds. Utility Model Content

[0005] The purpose of the utility model is to provide a portable surveying and mapping level that is easy to level, and can level the level more quickly and accurately.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A portable level for surveying and mapping that is easy to level, comprising a level body, the level body being mounted on the top of a tripod via a leveling mechanism;

[0008] The leveling mechanism includes a leveling mechanism support spherical shell spherically connected to the top of the tripod, a leveling support plate fixedly connected to the top of the tripod and arranged inside the leveling mechanism support spherical shell, a vertical calibration tube with an upward opening connected to the leveling support plate, a plumb bob counterweight ball fixed to the lower end of the vertical calibration tube, and a vertical calibration reflector fixed inside the vertical calibration tube;

[0009] A leveling observation support tube is fixed on the top of the leveling mechanism support spherical shell. The top of the leveling mechanism support spherical shell has a reflecting through hole connected to the leveling observation support tube. An initial reflection prism and a return reflection prism are fixed from bottom to top in the leveling observation support tube. A leveling dial is fixed in the leveling observation support tube between the initial reflection prism and the return reflection prism. A laser emitter is fixed on the side wall of the leveling observation support tube at the initial reflection prism. An eyepiece observation tube is fixed on the outside of the leveling observation support tube at the return reflection prism. A lens group is provided in the eyepiece observation tube.

[0010] Preferably, the leveling support plate has a vertical connecting hole, in which a leveling support ball is rotatably connected, the leveling support ball has a vertical accommodating hole, a vertical calibration ball is fitted and constrained on the spherical surface of the vertical accommodating hole, the vertical calibration ball has a vertically through calibration tube fixing hole, and the vertical calibration tube is fixed in the calibration tube fixing hole.

[0011] Note: The leveling support sphere protects the vertical calibration sphere and facilitates manual adjustment of the initial posture of the leveling support sphere.

[0012] Preferably, the vertical calibration ball is magnetically suspended and constrained in the vertical accommodating hole, a plurality of magnetic suspension constraining inner magnets are fixed on the outside of the vertical calibration ball, and a plurality of magnetic suspension constraining outer magnets are fixed on the inner side wall of the vertical accommodating hole.

[0013] Description: The vertical calibration ball is magnetically suspended and constrained in the vertical receiving hole, which reduces the rotational resistance of the vertical calibration ball and makes the vertical state reference of the vertical calibration tube more accurate.

[0014] Preferably, a vertical calibration protection outer tube is fixed to the lower side of the leveling support sphere, and a transparent vertical observation window is provided on the vertical calibration protection outer tube.

[0015] Note: The vertical observation window allows for easy observation of the vertical calibration tube and the plumb bob weight ball. Under gravity, the vertical calibration tube naturally hangs down in a vertical direction, and the plumb bob weight ball is prevented from contacting the inner wall of the vertical calibration protective outer tube.

[0016] Preferably, a level connecting shell is fixed to the top of the leveling mechanism support spherical shell, the level body is fixedly connected to the top of the level connecting shell, the level connecting shell surrounds the leveling observation support tube, and the eyepiece observation tube extends to the outside of the level connecting shell.

[0017] Note: The relative position between the level body and the leveling mechanism support ball shell is precisely fixed and consistent. When the leveling mechanism support ball shell is in a horizontal state, the level body is also in a horizontal state.

[0018] Preferably, a leveling drive mechanism is provided on the horizontal support plate, and the horizontal support plate has a plurality of vertically penetrating leveling drive accommodating holes. The leveling drive mechanism includes a leveling drive nut that is rotatably engaged in the leveling drive accommodating hole. The leveling drive nut has an internal thread transmission connection with a leveling drive screw. The top of the leveling drive screw is fixedly connected to the top of the leveling mechanism support ball shell through a leveling drive connecting rod, and a manual drive ring is fixed to the top of the leveling drive nut.

[0019] Description: By manually rotating each manual drive ring, the leveling drive screw is driven by thread transmission to drive the leveling mechanism support spherical shell to rotate around the ball center of the leveling connection hole through the leveling drive connecting rod, so as to facilitate the adjustment of the posture of the leveling mechanism support spherical shell.

[0020] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0021] 1. The utility model has a reasonable structural design and an efficient leveling mechanism. It uses a laser beam to reflect back and forth and illuminate the leveling scale to guide the leveling observation support tube and the vertical calibration tube to be in a coaxial state, thus completing the leveling work;

[0022] 2. The utility model is easy to operate. The vertical calibration tube is protected in a vertical calibration protective outer tube. It is not affected by strong winds during operation and has good adaptability to outdoor work.

[0023] 3. The vertical calibration ball of the utility model is magnetically suspended and constrained in the vertical accommodation hole, so that the rotation resistance of the vertical calibration ball is smaller, thereby making the vertical state reference of the vertical calibration tube more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the main view of the utility model;

[0025] Figure 2 yes Figure 1 Bottom view of

[0026] Figure 3 It is a structural diagram of the leveling mechanism of the utility model;

[0027] Figure 4 This is a structural diagram of the leveling support sphere of the utility model;

[0028] Figure 5 It is a structural schematic diagram of the leveling observation support tube of the utility model.

[0029] In the figure, 10-level instrument body, 11-level instrument connecting shell, 20-leveling mechanism, 201-leveling connecting hole, 21-leveling mechanism supporting ball shell, 210-vertical opening, 211-reflection through hole, 22-leveling support plate, 220-vertical connecting hole, 221-U-shaped connecting rod, 23-leveling supporting ball, 230-vertical accommodating hole, 231-vertical calibration protection outer tube, 232-vertical observation window, 24-vertical calibration ball, 240-calibration tube fixing hole, 241-magnetic levitation constraint inner magnet, 242-magnetic levitation constraint outer magnet, 2 5-vertical calibration tube, 250-vertical calibration reflector, 251-plumb weight ball, 26-leveling observation support tube, 260-leveling dial, 261-initial reflection prism, 262-return reflection prism, 27-laser transmitter, 28-eyepiece observation tube, 280-lens group, 29-leveling drive mechanism, 290-leveling drive receiving hole, 291-leveling drive nut, 292-leveling drive screw, 293-leveling drive connecting rod, 294-manual drive ring, 30-tripod, 31-horizontal support plate, 32-telescopic support leg. DETAILED DESCRIPTION

[0030] The following combination Figure 1-Figure 5 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are consistent with the up, down, left, right, front and back directions of the projection relationship of each main view or structural schematic diagram itself.

[0031] Example 1:

[0032] A portable level for surveying and mapping that is easy to level. Figure 1 As shown, the leveler body 10 is mounted on the top of a tripod 30 through a leveling mechanism 20;

[0033] The level body 10 is the Tianjin Oubo DS32S level of the prior art. The innovation of the present application is not in the level body 10, but in the rapid and accurate leveling of the existing level body 10. Therefore, the innovation lies in the leveling mechanism 20.

[0034] The tripod 30 is composed of a horizontal support plate 31 and a plurality of telescopic support legs 32 connected to the lower side of the horizontal support plate 31;

[0035] like Figure 3 As shown, the horizontal support plate 31 has a leveling connection hole 201, and the leveling mechanism 20 includes a leveling mechanism support ball shell 21 connected in the leveling connection hole 201;

[0036] The inner wall of the leveling connection hole 201 is a spherical structure, and the leveling mechanism supports the spherical shell 21 to spherically rotate and fit in the leveling connection hole 201;

[0037] The top of the leveling mechanism supporting spherical shell 21 is a flat structure, and the surrounding of the leveling mechanism supporting spherical shell 21 is a spherical structure;

[0038] The bottom of the leveling mechanism supporting spherical shell 21 has a vertical opening 210 communicating with the inside and outside;

[0039] like Figure 3 As shown, a leveling support plate 22 is connected to the leveling connection hole 201, and the leveling support plate 22 is fixedly connected to the horizontal support plate 31 through a plurality of U-shaped connecting rods 221. The leveling support plate 22 is arranged inside the leveling mechanism support ball shell 21. A vertical calibration tube 25 with an upward opening is connected to the leveling support plate 22. A plumb bob weight ball 251 is fixed to the lower end of the vertical calibration tube 25. A vertical calibration reflector 250 is fixed inside the vertical calibration tube 25.

[0040] The leveling support plate 22 has a vertical connecting hole 220, in which a leveling support ball 23 is rotatably connected. The leveling support ball 23 has a vertical accommodating hole 230, in which a vertical calibration ball 24 is fitted and constrained on the spherical surface. The vertical calibration ball 24 has a vertically penetrating calibration tube fixing hole 240, in which the vertical calibration tube 25 is fixed.

[0041] The vertical connection hole 220 is a spherical hole, and the leveling support ball 23 spherically rotates and fits in the vertical connection hole 220;

[0042] The vertical receiving hole 230 is a spherical hole, and the vertical calibration ball 24 is spherically rotated and fitted in the vertical receiving hole 230;

[0043] The leveling connection hole 201, the vertical connection hole 220 and the vertical receiving hole 230 are located at the same spherical center;

[0044] like Figure 3 As shown, a leveling observation support tube 26 is fixed on the top of the leveling mechanism support spherical shell 21. Figure 5 As shown, the top of the leveling mechanism support spherical shell 21 has a reflective through hole 211 connected to the leveling observation support tube 26, and an initial reflection prism 261 and a return reflection prism 262 are fixed from bottom to top in the leveling observation support tube 26. A leveling dial 260 is fixed in the leveling observation support tube 26 between the initial reflection prism 261 and the return reflection prism 262. The leveling dial 260 is made of transparent material. A laser emitter 27 is fixed on the side wall of the leveling observation support tube 26 at the initial reflection prism 261. An eyepiece observation tube 28 is fixed on the outside of the leveling observation support tube 26 at the return reflection prism 262. The eyepiece observation tube 28 is connected to the inside of the leveling observation support tube 26, and a lens group 280 is provided in the eyepiece observation tube 28.

[0045] like Figure 3As shown, a level connecting shell 11 is fixed to the top of the leveling mechanism support ball shell 21, the level body 10 is fixedly connected to the top of the level connecting shell 11, the level connecting shell 11 surrounds the leveling observation support tube 26, and the eyepiece observation tube 28 extends to the outside of the level connecting shell 11.

[0046] like Figure 3 As shown, a leveling drive mechanism 29 is provided on the horizontal support plate 31, and a plurality of vertically penetrating leveling drive accommodating holes 290 are provided on the horizontal support plate 31. The leveling drive mechanism 29 includes a leveling drive nut 291 that is rotatably engaged in the leveling drive accommodating hole 290. The leveling drive nut 291 is internally threadedly connected to a leveling drive screw 292. The top of the leveling drive screw 292 is fixedly connected to the top of the leveling mechanism support ball shell 21 through a leveling drive connecting rod 293. A manual drive ring 294 is fixed to the top of the leveling drive nut 291.

[0047] The leveling drive screw 292 has a limit groove parallel to its axis, and the horizontal support plate 31 is fixed with a limit block that slides with the limit groove, so that the leveling drive screw 292 can only move along the axial direction of the leveling drive accommodating hole 290, thereby limiting the rotation of the leveling drive screw 292 around the axis of the leveling drive accommodating hole 290.

[0048] Example 2:

[0049] On the basis of Example 1, Figure 4 As shown, the vertical calibration ball 24 is magnetically levitated and constrained in the vertical accommodating hole 230. The vertical calibration ball 24 is made of polytetrafluoroethylene. A plurality of magnetic levitation constrained inner magnets 241 are fixed to the outside of the vertical calibration ball 24, and a plurality of magnetic levitation constrained outer magnets 242 are fixed to the inner wall of the vertical accommodating hole 230. Both the magnetic levitation constrained inner magnets 241 and the magnetic levitation constrained outer magnets 242 are neodymium iron boron permanent magnets.

[0050] Example 3:

[0051] On the basis of Example 2, Figure 3 As shown, a vertical calibration protection outer tube 231 is fixed to the lower side of the leveling support sphere 23 , and a transparent vertical observation window 232 is provided on the vertical calibration protection outer tube 231 .

[0052] The plumb bob weight ball 251 is made of aluminum or copper. A strong magnetic fastener is fixed to the bottom of the vertical calibration protection outer tube 231. The eddy current induction principle is used to quickly consume the swing potential energy of the vertical calibration tube 25, so that the vertical calibration tube 25 is quickly in a stable vertical state under the action of gravity.

[0053] It should be noted that the vertical calibration reflector 250, initial reflective prism 261, return reflective prism 262, laser emitter 27, and lens group 280 used in this application are all based on existing technologies and are not specifically limited here. Those skilled in the art can choose them according to their needs as long as they can implement the technical solution of this application.

[0054] In actual application of the present invention, the tripod 30 is used to support and fix the entire device on the ground, and multiple telescopic support legs 32 are supported on the ground, and the horizontal support plate 31 is roughly horizontal by adjusting the length of the telescopic support legs 32;

[0055] Manually bend the vertical calibration protective outer tube 231 so that it is approximately in a vertical direction. Observe the vertical calibration tube 25 and the plumb bob weight ball 251 through the vertical observation window 232. Under the action of gravity, the vertical calibration tube 25 naturally droops in the vertical direction, and the plumb bob weight ball 251 is prevented from contacting the inner wall of the vertical calibration protective outer tube 231.

[0056] At this time, the vertical calibration tube 25 is in the standard vertical direction, and the level body 10 is leveled with the vertical calibration tube 25 as a reference;

[0057] By manually rotating each manual drive ring 294, the leveling drive screw 292 can be moved along the axis of the leveling drive receiving hole 290 by utilizing the threaded transmission between the leveling drive nut 291 and the leveling drive screw 292. The leveling drive screw 292 then drives the leveling mechanism support spherical shell 21 to rotate around the spherical center of the leveling connection hole 201 through the leveling drive connecting rod 293.

[0058] The initial reflection prism 261 and the return reflection prism 262 are 90° reflection prisms. The laser emitter 27 emits a laser beam. After being reflected at a right angle by the initial reflection prism 261, the laser passes through the reflection through-hole 211 and enters the vertical calibration tube 25. After being reflected by the vertical calibration reflector 250, the laser returns to the leveling observation support tube 26. The laser continues to pass through the initial reflection prism 261 and enters the eyepiece observation tube 28 after being reflected at a right angle by the return reflection prism 262. A clear image of the leveling scale 260 can be observed through the imaging of the lens group 280. The light spot irradiated by the laser on the leveling scale 260 is observed through the eyepiece observation tube 28. When the light spot irradiated by the laser on the leveling scale 260 is at the center point of the leveling scale 260, the leveling is completed.

[0059] When the laser spot irradiated on the leveling dial 260 is at the center point of the leveling dial 260, it means that the leveling observation support tube 26 and the vertical calibration tube 25 are coaxial and both are in a vertical state. The leveling observation support tube 26 is perpendicular to the top of the leveling mechanism support spherical shell 21, that is, the leveling mechanism support spherical shell 21 is in a horizontal state at this time. The level body 10 is fixedly connected to the top of the leveling mechanism support spherical shell 21 through the level connecting shell 11. When the leveling mechanism support spherical shell 21 is in a horizontal state, the level body 10 is also in a horizontal state.

Claims

1. A portable level for surveying and mapping that is easy to level, characterized in that: The leveler body (10) is mounted on the top of a tripod (30) via a leveling mechanism (20); The tripod (30) is composed of a horizontal support plate (31) and a plurality of telescopic support legs (32) connected to the lower side of the horizontal support plate (31); The leveling mechanism (20) comprises a leveling mechanism support spherical shell (21) spherically connected to the top of the tripod (30), a leveling support plate (22) fixedly connected to the top of the tripod (30) and arranged inside the leveling mechanism support spherical shell (21), a vertical calibration tube (25) with an upward opening connected to the leveling support plate (22), a plumb bob weight ball (251) fixed to the lower end of the vertical calibration tube (25), and a vertical calibration reflector (250) fixed inside the vertical calibration tube (25); A leveling observation support tube (26) is fixed on the top of the leveling mechanism support spherical shell (21), and a reflection through hole (211) is provided on the top of the leveling mechanism support spherical shell (21) and is communicated with the leveling observation support tube (26). An initial reflection prism (261) and a return reflection prism (262) are fixed from bottom to top in the leveling observation support tube (26), a leveling scale (260) is fixed between the initial reflection prism (261) and the return reflection prism (262) in the leveling observation support tube (26), a laser emitter (27) is fixed on the side wall of the leveling observation support tube (26) at the initial reflection prism (261), and an eyepiece observation tube (28) is fixed on the outside of the leveling observation support tube (26) at the return reflection prism (262), and a lens group (280) is provided in the eyepiece observation tube (28).

2. The portable level for surveying and mapping that is easy to level according to claim 1, characterized in that: The leveling support plate (22) has a vertical connection hole (220), a leveling support sphere (23) is rotatably connected in the vertical connection hole (220), the leveling support sphere (23) has a vertical accommodating hole (230), a vertical calibration ball (24) is fitted and constrained in the spherical surface of the vertical accommodating hole (230), the vertical calibration ball (24) has a vertically penetrating calibration tube fixing hole (240), and the vertical calibration tube (25) is fixed in the calibration tube fixing hole (240).

3. The portable level for surveying and mapping that is easy to level according to claim 2, characterized in that: The vertical calibration ball (24) is magnetically suspended and constrained in the vertical accommodating hole (230), a plurality of magnetically suspended constrained inner magnets (241) are fixed on the outside of the vertical calibration ball (24), and a plurality of magnetically suspended constrained outer magnets (242) are fixed on the inner side wall of the vertical accommodating hole (230).

4. The portable level for surveying and mapping that is easy to level according to claim 2, characterized in that: A vertical calibration protection outer tube (231) is fixed to the lower side of the leveling support sphere (23), and a transparent vertical observation window (232) is provided on the vertical calibration protection outer tube (231).

5. The portable level for surveying and mapping that is easy to level according to claim 1, characterized in that: A level connecting shell (11) is fixed to the top of the leveling mechanism supporting spherical shell (21), the level body (10) is fixedly connected to the top of the level connecting shell (11), the level connecting shell (11) surrounds the leveling observation support tube (26), and the eyepiece observation tube (28) extends to the outside of the level connecting shell (11).

6. The portable level for surveying and mapping that is easy to level according to claim 1, characterized in that: The horizontal support plate (31) is provided with a leveling drive mechanism (29), and the horizontal support plate (31) has a plurality of vertically penetrating leveling drive accommodating holes (290). The leveling drive mechanism (29) includes a leveling drive nut (291) rotatably engaged in the leveling drive accommodating hole (290), the leveling drive nut (291) is internally threadedly connected to a leveling drive screw (292), the top of the leveling drive screw (292) is fixedly connected to the top of the leveling mechanism support ball shell (21) via a leveling drive connecting rod (293), and a manual drive ring (294) is fixed to the top of the leveling drive nut (291).

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