Positioning marker post for land survey

Abstract

The utility model belongs to the technical field of land survey, and discloses a positioning marker post for land survey, which comprises a fixing ring arranged on the outer side of an outer graduated tube, a middle graduated tube and an inner graduated rod, the lower end of the middle graduated tube is fixedly connected with an external thread ring, and the lower end of the inner graduated rod is fixedly connected with an external thread disc. First threads are arranged on the inner side face of the outer graduated tube, the outer threaded ring is in threaded connection with the outer graduated tube through the first threads, the middle graduated tube is located on the inner side of the outer graduated tube, second threads are arranged on the inner side face of the middle graduated tube, and the outer threaded disc is in threaded connection with the middle graduated tube through the second threads. The inner graduated rod is positioned on the inner side of the middle graduated tube; compared with the prior art, the positioning marker post has the advantages that the positioning marker post can be stored when not in use so as to prevent the soil inserting rod from hurting external objects or personnel, and the positioning marker post is convenient to carry anywhere, convenient to use, high in adjusting speed and wide in application range, and has a convenient height adjusting function.

Description

Technical Field

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

[0002] Land surveying involves the use of surveying and remote sensing techniques to measure and map the quantity, distribution, and topographic characteristics of various types of land. This includes topographic surveying, cadastral surveying, land leveling surveying, current land use status surveying, and investigation of reserve resources such as barren hills and wastelands. Methods used include geodesy, conventional surveying, aerial photogrammetry, remote sensing, and map compilation. Land surveying often requires the use of positioning poles to locate measurement points.

[0003] After searching, a Chinese patent document with publication number CN213688365U discloses a positioning pole for land surveying. The positioning pole can be easily inserted into the ground through a ground-piercing device, which saves time and effort. At the same time, the drill bit inserted into the ground can increase the overall stability. A small colored light is provided on the top of the positioning pole to facilitate the visibility of the positioning pole. At the same time, a solar panel is provided to save energy and electricity. However, when the existing land survey positioning pole is idle, its sharp supporting parts are exposed to the outside world and can easily cause damage to other objects or people. It is also not convenient to carry around. Utility Model Content

[0004] The utility model proposes a positioning pole for land surveying, which aims to solve the technical problem that "the existing positioning poles for land surveying, when idle, have sharp supporting parts exposed to the outside world, which may easily cause damage to other objects or people, and are inconvenient to carry around".

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0006] A positioning pole for land surveying comprises a fixing ring arranged outside an outer scale tube, an intermediate scale tube and an inner scale rod, wherein the lower end of the intermediate scale tube is fixedly connected to an outer threaded ring, and the lower end of the inner scale rod is fixedly connected to an outer threaded disk.

[0007] Preferably, the inner side surface of the outer scale tube is provided with a first thread, and the outer thread ring is threadably connected to the outer scale tube via the first thread, and the intermediate scale tube is located on the inner side of the outer scale tube.

[0008] Preferably, the inner side surface of the intermediate scale tube is provided with a second thread, and the external threaded disk is threadably connected to the intermediate scale tube via the second thread, and the inner scale rod is located on the inner side of the intermediate scale tube.

[0009] Preferably, the upper end of the middle scale tube is fixedly connected to a first rotating handle, and the upper end of the inner scale rod is fixedly connected to a second rotating handle, and the second rotating handle is located on the upper side of the first rotating handle.

[0010] Preferably, the fixed ring is fixedly sleeved on the outer bottom of the external scale tube, four groups of limiting vertical rods are fixedly connected to the upper surface of the fixed ring, a movable ring is sleeved on the outer top of the external scale tube, and four groups of movable support plates are arranged on the periphery of the external scale tube, and the lower ends of the four groups of movable support plates are fixedly connected to soil insertion rods.

[0011] Preferably, four groups of limiting sliding holes are opened through the upper surface of the movable ring, and internal thread rings are provided on the upper surface of the movable ring and on the upper side of the four groups of limiting sliding holes. The four groups of limiting vertical rods pass through the limiting sliding holes and are threadedly connected to the four groups of internal thread rings.

[0012] Preferably, the four groups of movable support plates are respectively connected to the movable ring with connecting hinges, the four groups of movable support plates and the four groups of limiting vertical rods are staggered, and the four groups of movable support plates and the four groups of limiting vertical rods are symmetrically arranged about the inner scale rod, the upper surface of the fixed ring is provided with slots, and the four groups of soil insertion rods are respectively matched with the four groups of slots.

[0013] The beneficial effects of the utility model are as follows:

[0014] The positioning benchmark of land surveying of the present invention enables the movable ring to move upward along the outer scale tube through four groups of limiting vertical rods and four groups of limiting sliding holes. At this time, the four groups of movable support plates are respectively connected to the hinges and rotated to a vertical state, and then the movable ring is moved downward until the four groups of soil insertion rods are respectively placed inside the four groups of slots, and the four groups of internal threaded rings are threadedly connected to the limiting vertical rods so that the four groups of internal threaded rings are all blocked on the upper side of the movable ring. The positioning benchmark can be stored when it is idle to prevent the soil insertion rods from causing damage to external objects or personnel. It is also convenient to carry anywhere and easy to use.

[0015] The positioning benchmark of the land surveying of the present invention has a first rotating handle that cooperates with the external thread ring and the first thread to make the middle scale tube spirally move up along the inside of the outer scale tube, and then a second rotating handle that cooperates with the external thread disk and the second thread to make the inner scale rod spirally move up along the inside of the middle scale tube. The height of the positioning benchmark can be changed by the cooperation of the outer scale rod, the middle scale rod and the inner scale rod, which has a convenient height adjustment function and a fast adjustment speed, and the benchmark has a wider range of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a positioning pole for land surveying according to an embodiment of the present utility model;

[0017] Figure 2A partial cross-sectional view of a positioning pole for land surveying according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the movable ring in an embodiment of the utility model;

[0019] Figure 4 The figure is a side view of a positioning pole for land surveying according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. External scale tube; 2. Middle scale tube; 3. External threaded ring; 4. First rotating handle; 5. Internal scale rod; 6. External threaded disk; 7. Second rotating handle; 8. Fixed ring; 9. Limit vertical rod; 10. Movable ring; 11. Limit sliding hole; 12. Internal threaded ring; 13. Movable support plate; 14. Connecting hinge; 15. Soil insertion rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] Example 1

[0025] See also Figure 1-Figure 4 A positioning benchmark for land surveying includes a fixed ring 8 arranged on the outside of an outer scale tube 1, an intermediate scale tube 2 and an inner scale rod 5, the lower end of the intermediate scale tube 2 is fixedly connected to an external threaded ring 3, and the lower end of the inner scale rod 5 is fixedly connected to an external threaded disk 6.

[0026] The inner side of the outer calibrated tube 1 is provided with a first thread, and the outer thread ring 3 is threadedly connected to the outer calibrated tube 1 through the first thread. The intermediate calibrated tube 2 is located on the inner side of the outer calibrated tube 1 .

[0027] In this embodiment, the external thread ring 3 and the first thread allow the intermediate scale tube 2 to be spirally raised and lowered.

[0028] The inner side surface of the intermediate scale tube 2 is provided with a second thread, and the external threaded disk 6 is threadedly connected to the intermediate scale tube 2 through the second thread. The inner scale rod 5 is located on the inner side of the intermediate scale tube 2.

[0029] In this embodiment, the inner scale rod 5 is spirally raised and lowered by the outer thread disk 6 and the second thread.

[0030] The upper end of the middle scale tube 2 is fixedly connected to a first rotating handle 4 , and the upper end of the inner scale rod 5 is fixedly connected to a second rotating handle 7 . The second rotating handle 7 is located on the upper side of the first rotating handle 4 .

[0031] In this embodiment, the middle scale rod 2 and the inner scale rod 5 are rotated by the first rotating handle 4 and the second rotating handle 7 .

[0032] Specifically, the first rotating handle 4 cooperates with the external thread ring 3 and the first thread to make the middle scale tube 2 spirally move up along the inside of the outer scale tube 1, and then the second rotating handle 7 cooperates with the external thread disk 6 and the second thread to make the inner scale rod 5 spirally move up along the inside of the middle scale tube 2. The height of the positioning benchmark can be changed by the cooperation of the outer scale rod, the middle scale rod and the inner scale rod 5, which has a convenient height adjustment function, a fast adjustment speed, and a wider range of application of the benchmark.

[0033] Example 2

[0034] See also Figure 1-Figure 4 A positioning benchmark for land measurement, a fixed ring 8 is fixedly sleeved on the outer bottom of an outer scale tube 1, four groups of limit vertical rods 9 are fixedly connected to the upper surface of the fixed ring 8, a movable ring 10 is sleeved on the outer top of the outer scale tube 1, and four groups of movable support plates 13 are set on the periphery of the outer scale tube 1, and the lower ends of the four groups of movable support plates 13 are fixedly connected to soil insertion rods 15.

[0035] Four groups of limiting sliding holes 11 are opened through the upper surface of the movable ring 10. Internal threaded rings 12 are provided on the upper surface of the movable ring 10 and on the upper side of the four groups of limiting sliding holes 11. The four groups of limiting vertical rods 9 pass through the limiting sliding holes 11 and are threadedly connected to the four groups of internal threaded rings 12.

[0036] In this embodiment, the four groups of limiting vertical rods 9 and the four groups of limiting sliding holes 11 cooperate to facilitate the lifting and lowering of the movable ring 10.

[0037] The four groups of movable support plates 13 are respectively connected to the movable ring 10 with connecting hinges 14, the four groups of movable support plates 13 and the four groups of limiting vertical rods 9 are staggered, and the four groups of movable support plates 13 and the four groups of limiting vertical rods 9 are symmetrically arranged about the inner scale rod 5, the upper surface of the fixed ring 8 is provided with slots, and the four groups of soil insertion rods 15 are respectively matched with the four groups of slots.

[0038] In this embodiment, the four groups of movable support plates 13 are rotated by connecting hinges 14 .

[0039] Specifically, the four groups of limiting vertical rods 9 cooperate with the four groups of limiting sliding holes to enable the movable ring 10 to move upward along the outer scale tube 1. At this time, the four groups of movable support plates 13 are respectively connected to the hinges 14 and rotated to a vertical state. Then the movable ring 10 is moved downward until the four groups of soil insertion rods 15 are respectively placed inside the four groups of slots, and the four groups of internal threaded rings 12 are threadedly connected to the limiting vertical rods 9 so that the four groups of internal threaded rings 12 are all blocked on the upper side of the movable ring 10. The positioning pole can be stored when it is idle to prevent the soil insertion rods 15 from causing damage to external objects or personnel. It is also convenient to carry anywhere and easy to use.

[0040] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A positioning pole for land surveying, comprising a fixing ring arranged outside an outer graduated tube, characterized in that: It also includes an intermediate scale tube and an inner scale rod. The lower end of the intermediate scale tube is fixedly connected with an external thread ring, and the lower end of the inner scale rod is fixedly connected with an external thread disk.

2. A positioning pole for land surveying according to claim 1, characterized in that: The inner side surface of the outer calibrated tube is provided with a first thread, and the outer thread ring is threadably connected to the outer calibrated tube through the first thread, and the intermediate calibrated tube is located on the inner side of the outer calibrated tube.

3. A positioning pole for land surveying according to claim 2, characterized in that: The inner side surface of the intermediate scale tube is provided with a second thread, and the external threaded disk is threadedly connected with the intermediate scale tube through the second thread, and the inner scale rod is located on the inner side of the intermediate scale tube.

4. A positioning pole for land surveying according to claim 3, characterized in that: The upper end of the middle scale tube is fixedly connected with a first rotating handle, the upper end of the inner scale rod is fixedly connected with a second rotating handle, and the second rotating handle is located on the upper side of the first rotating handle.

5. A positioning pole for land surveying according to claim 1, characterized in that: The fixed ring is fixedly sleeved on the outer bottom of the outer scale tube, four groups of limiting vertical rods are fixedly connected to the upper surface of the fixed ring, a movable ring is sleeved on the outer top of the outer scale tube, four groups of movable support plates are arranged on the periphery of the outer scale tube, and the lower ends of the four groups of movable support plates are fixedly connected to soil insertion rods.

6. A positioning pole for land surveying according to claim 5, characterized in that: Four groups of limiting sliding holes are formed through the upper surface of the movable ring. Internal threaded rings are provided on the upper surface of the movable ring and on the upper sides of the four groups of limiting sliding holes. The four groups of limiting vertical rods pass through the limiting sliding holes and are threadedly connected with the four groups of internal threaded rings.

7. A positioning pole for land surveying according to claim 5, characterized in that: The four groups of movable support plates are respectively connected to the movable rings with connecting hinges, the four groups of movable support plates and the four groups of limit vertical rods are staggered, and the four groups of movable support plates and the four groups of limit vertical rods are symmetrically arranged about the inner scale rod, the upper surface of the fixed ring is provided with slots, and the four groups of soil insertion rods are respectively matched with the four groups of slots.

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