Land survey positioning marker post

Abstract

The utility model discloses a land survey positioning marker post and belongs to the field of positioning marker posts. The land survey positioning marker post comprises a bottom plate and further comprises a plurality of insertion rods which are fixedly connected to the lower side of the bottom plate at equal intervals in a circumferential mode. The movable plate is arranged on the upper side of the bottom plate; the fixed column is fixedly arranged on the upper side of the movable plate; the spherical groove is formed in the fixed column; the rotating ball is rotationally arranged in the spherical groove; according to the utility model, the marker post body is in a vertical state when the ball is rotated, so that the precision of land survey is effectively improved, and the detachable marker post body is adopted, so that the weight and the volume of the counterweight ball can be reduced to the greatest extent, the gravity center of the counterweight ball can be reduced, and the marker post body is effectively prevented from toppling under the action of wind and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning benchmarks, in particular to a positioning benchmark for land surveying. Background Art

[0002] Land surveying is the work of measuring and mapping the quantity, distribution, terrain and other characteristics of various lands by using surveying and remote sensing technology methods, including topographic surveying, cadastral surveying, land leveling surveying, land use status surveying, investigation of reserve resources such as barren mountains and wastelands, etc. Land surveying is an important link in land management, planning and development, and the selection of surveying tools is crucial for the accuracy and reliability of surveying. When conducting land surveying, a positioning benchmark is needed for auxiliary operation.

[0003] At present, the positioning benchmark is directly fixed on the ground through a pin. Directly inserting it into the ground may cause the positioning benchmark to tilt. And when some use a rotating ball and a counterweight to correct the benchmark, due to the long length of the benchmark, a relatively large counterweight is needed for counterweight, and the counterweight is exposed above the ground, making the center of gravity of the whole device biased upwards, so it may be toppled under the action of wind. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a land surveying positioning benchmark that can overcome or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A land surveying positioning benchmark, comprising: a bottom plate, and further comprising: a plurality of insertion rods, fixedly connected at equal circumferential intervals to the lower side of the bottom plate; a moving plate, arranged on the upper side of the bottom plate; a fixed column, fixedly arranged on the upper side of the moving plate; a spherical groove, opened in the fixed column; a rotating ball, rotatably arranged in the spherical groove; a counterweight ball, fixedly arranged at the lower end of the rotating ball; a cavity, arranged on the upper side of the rotating ball; a benchmark body, detachably connected to the counterweight ball; a locking assembly for locking the rotating ball.

[0007] In order to facilitate locking the rotating ball, further, the locking assembly includes fixed tubes symmetrically and fixedly connected to the fixed column, and threaded rods are threadedly connected in the fixed tubes.

[0008] In order to prevent the rotating ball from moving, further, a limiting groove is opened in the fixed tube, and a pressing rod matching the rotating ball is slidably arranged in the limiting groove, and the pressing rod is rotatably connected to the threaded rod.

[0009] Preferably, a sliding cavity is arranged in the insertion rod, and a plurality of sliding rods matching the sliding cavity are arranged on the lower side of the moving plate.

[0010] For the convenience of observing the position of the counterweight ball, further, the sliding rod is rotatably connected to the moving plate, the limiting blocks are symmetrically and fixedly connected in the sliding cavity, the first sliding groove, the first annular groove, the second sliding groove and the second annular groove are sequentially arranged on the sliding rod, and the first sliding groove, the first annular groove, the second sliding groove and the second annular groove are all matched with the limiting blocks. A rotating head fixedly connected to the sliding rod is rotatably connected to the upper side of the moving plate.

[0011] For the convenience of installing and disassembling the benchmark body, preferably, the benchmark body is threadedly connected to the rotating ball.

[0012] Compared with the prior art, the present utility model provides a land survey positioning benchmark, which has the following beneficial effects:

[0013] 1. For this land survey positioning benchmark, a plurality of inserting rods are inserted into the ground to make the bottom plate fit the ground as much as possible. Then, the sliding rod on the moving plate is inserted into the sliding cavity of the inserting rod. By rotating the two threaded rods, the limit on the rotating ball is released. At this time, the rotating ball makes self-adjustment under the action of the counterweight ball, so that the counterweight ball is vertically downward. At this time, the installation groove for installing the benchmark body on the rotating ball is vertically upward. Then rotate the two threaded rods to make the threaded rods push the extrusion rod to slide towards the rotating ball to limit the rotating ball. Finally, install the benchmark body on the rotating ball, so that the benchmark body is in a vertical state, effectively improving the accuracy of land survey. And the detachable benchmark body is adopted, which can reduce the weight and volume of the counterweight ball to the greatest extent, and then can reduce its center of gravity, effectively preventing the benchmark body from toppling under the action of wind and the like.

[0014] 2. For this land survey positioning benchmark, the limiting block first enters the first annular groove through the first sliding groove, so that there is a certain gap between the moving plate and the bottom plate. Then, the rotating ball is adjusted, so as to facilitate observing the position of the counterweight ball and prevent the bottom plate from tilting too much, resulting in the counterweight ball being unable to accurately adjust the position of the rotating ball. When the counterweight ball contacts the fixed column, the position of the bottom plate needs to be adjusted so that the counterweight ball does not contact the fixed column. By rotating the rotating head, the limiting block enters the second sliding groove. When the moving plate contacts the bottom plate, the limiting block enters the second annular groove. Finally, by rotating the rotating head, the limiting block is separated from the second sliding groove, so as to lock the moving plate, thereby effectively improving the stability of the benchmark body.

[0015] The parts not involved in this device are the same as or can be implemented by the prior art. The present utility model makes the benchmark body in a vertical state through the rotating ball, effectively improving the accuracy of land survey. And the detachable benchmark body is adopted, which can reduce the weight and volume of the counterweight ball to the greatest extent, and then can reduce its center of gravity, effectively preventing the benchmark body from toppling under the action of wind and the like. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the land survey positioning benchmark proposed by the present utility model;

[0017] Figure 2 It is an unfolded structural diagram of the land survey positioning benchmark proposed by the present utility model;

[0018] Figure 3 It is a schematic sectional view of the land survey positioning benchmark proposed by the present utility model;

[0019] Figure 4 It is the land survey positioning benchmark proposed by the present utility model Figure 3 An enlarged schematic view of part A in it.

[0020] In the figure: 1, bottom plate; 101, insertion rod; 102, sliding cavity; 103, limiting block; 2, moving plate; 201, sliding rod; 202, first sliding groove; 203, first annular groove; 204, second sliding groove; 205, second annular groove; 206, rotating head; 3, fixed column; 301, fixed tube; 302, limiting groove; 303, extrusion rod; 304, threaded rod; 305, spherical groove; 4, rotating ball; 401, cavity; 402, counterweight ball; 403, benchmark body. Detailed Description of the Preferred Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Embodiment 1: Referring to Figures 1 - 4 , the land survey positioning benchmark includes: a bottom plate 1, and further includes: a plurality of insertion rods 101, which are fixedly connected to the lower side of the bottom plate 1 at equal circumferential intervals; a moving plate 2, which is arranged on the upper side of the bottom plate 1; a fixed column 3, which is fixedly arranged on the upper side of the moving plate 2; a spherical groove 305, which is opened in the fixed column 3; a rotating ball 4, which is rotatably arranged in the spherical groove 305; a counterweight ball 402, which is fixedly arranged at the lower end of the rotating ball 4; a cavity 401, which is arranged on the upper side of the rotating ball 4; a benchmark body 403, which is detachably connected to the counterweight ball 402; and a locking assembly for locking the rotating ball 4.

[0023] The locking assembly includes fixed tubes 301 symmetrically and fixedly connected to the fixed column 3, and a threaded rod 304 is threadedly connected in the fixed tube 301.

[0024] A limiting groove 302 is opened in the fixed tube 301, and an extrusion rod 303 matching the rotating ball 4 is slidably arranged in the limiting groove 302, and the extrusion rod 303 is rotatably connected to the threaded rod 304.

[0025] A sliding cavity 102 is arranged inside the insertion rod 101, and a plurality of sliding rods 201 matching the sliding cavity 102 are arranged on the lower side of the moving plate 2.

[0026] When the benchmark body 403 needs to be installed during land surveying, first insert a plurality of insertion rods 101 into the ground to make the bottom plate 1 fit the ground as much as possible, and then insert the sliding rods 201 on the moving plate 2 into the sliding cavity 102 of the insertion rod 101. By rotating the two threaded rods 304, the limit on the rotating ball 4 is released. At this time, the rotating ball 4 makes self-adjustment under the action of the counterweight ball 402, so that the counterweight ball 402 is vertically downward. At this time, the installation groove for installing the benchmark body 403 on the rotating ball 4 is vertically upward. Then rotate the two threaded rods 304 to make the threaded rods 304 push the extrusion rod 303 to slide towards the rotating ball 4 to limit the rotating ball 4. Finally, install the benchmark body 403 on the rotating ball 4, so that the benchmark body 403 is in a vertical state, effectively improving the accuracy of land surveying. And the detachable benchmark body 403 can reduce the weight and volume of the counterweight ball 402 to the greatest extent, and then can lower its center of gravity, effectively preventing the benchmark body 403 from tipping over under the action of wind and the like.

[0027] Example 2: Refer to Figures 1 - 4 , the land survey positioning benchmark, which is basically the same as Example 1. Further, the sliding rod 201 is rotatably connected to the moving plate 2. Limiting blocks 103 are symmetrically and fixedly connected inside the sliding cavity 102. The sliding rod 201 is sequentially provided with a first sliding groove 202, a first annular groove 203, a second sliding groove 204 and a second annular groove 205, and the first sliding groove 202, the first annular groove 203, the second sliding groove 204 and the second annular groove 205 are all matched with the limiting blocks 103. A rotating head 206 fixedly connected to the sliding rod 201 is rotatably connected to the upper side of the moving plate 2.

[0028] The benchmark body 403 is threadedly connected to the rotating ball 4.

[0029] When the sliding rod 201 slides into the sliding cavity 102, the limiting block 103 first enters the first annular groove 203 through the first sliding groove 202, so that there is a certain gap between the moving plate 2 and the bottom plate 1, and then the rotating ball 4 is adjusted, so as to facilitate observing the position of the counterweight ball 402 and prevent the bottom plate 1 from tilting excessively, resulting in the counterweight ball 402 being unable to accurately adjust the position of the rotating ball 4. When the counterweight ball 402 contacts the fixed column 3, the position of the bottom plate 1 needs to be adjusted to make the counterweight ball 402 not contact the fixed column 3. The limiting block 103 is made to enter the second sliding groove 204 by rotating the rotating head 206. When the moving plate 2 contacts the bottom plate 1, the limiting block 103 enters the second annular groove 205, and finally the limiting block 103 is made to move away from the second sliding groove 204 by rotating the rotating head 206, thereby realizing the locking of the moving plate 2 and effectively improving the stability of the benchmark body 403.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. Land survey positioning rod, comprising: Bottom plate (1), characterized in that it further comprises: A plurality of insertion rods (101), which are fixedly connected to the lower side of the bottom plate (1) at equal circumferential intervals; A moving plate (2), which is arranged on the upper side of the bottom plate (1); A fixed column (3), which is fixedly arranged on the upper side of the moving plate (2); A spherical groove (305), which is opened in the fixed column (3); A rotating ball (4), which is rotatably arranged in the spherical groove (305); A counterweight ball (402), which is fixedly arranged at the lower end of the rotating ball (4); A cavity (401), which is arranged on the upper side of the rotating ball (4); A benchmark body (403), which is detachably connected to the counterweight ball (402); A locking assembly for locking the rotating ball (4).

2. The land survey and positioning benchmark according to claim 1, wherein The locking assembly includes fixed tubes (301) symmetrically and fixedly connected to the fixed column (3), and a threaded rod (304) is threadedly connected in the fixed tube (301).

3. The land survey positioning benchmark according to claim 2, characterized in that, A limiting groove (302) is opened in the fixed tube (301), and an extrusion rod (303) matching the rotating ball (4) is slidably arranged in the limiting groove (302), and the extrusion rod (303) is rotatably connected to the threaded rod (304).

4. The land survey positioning benchmark according to claim 1, characterized in that, A sliding cavity (102) is arranged in the insertion rod (101), and a plurality of sliding rods (201) matching the sliding cavity (102) are arranged on the lower side of the moving plate (2).

5. The land survey positioning benchmark according to claim 4, characterized in that, The sliding rod (201) is rotatably connected to the moving plate (2), limiting blocks (103) are symmetrically and fixedly connected in the sliding cavity (102), a first sliding groove (202), a first annular groove (203), a second sliding groove (204) and a second annular groove (205) are sequentially arranged on the sliding rod (201), and the first sliding groove (202), the first annular groove (203), the second sliding groove (204) and the second annular groove (205) are all matched with the limiting blocks (103), and a rotating head (206) fixedly connected to the sliding rod (201) is rotatably connected to the upper side of the moving plate (2).

6. The land survey and positioning benchmark according to claim 1, characterized in that The benchmark body (403) is threadedly connected to the rotating ball (4).

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