Marker post convenient for engineering surveying

Abstract

The marker post comprises a marker post body, the marker post body comprises a first post body, a second post body and a third post body, and the bottom end of the first post body and the top end of the third post body are each provided with a connecting piece; the bottom end of the first rod body and the top end of the third rod body are connected to the upper end and the lower end of the second rod body through connecting pieces correspondingly, the connecting pieces are arranged at the ends of the first rod body and the third rod body correspondingly, and the first rod body and the third rod body are connected to the upper end and the lower end of the second rod body through the connecting pieces correspondingly; and the assembly can be completed only by controlling the connecting piece without rotating the single-section rod body, so that the assembly efficiency is improved, and the use effect of the marker post is improved.

Description

Technical Field

[0001] This patent relates to the field of benchmarking technology, specifically a benchmark that is convenient for engineering measurement. Background Technology

[0002] Most existing engineering surveying poles are single poles that cannot be disassembled, making them inconvenient to carry and handle. Some can be made up of multiple pole segments to form a longer pole, but this requires rotating the entire single pole segment during assembly. The single pole segment is heavy and not convenient for overall assembly. Therefore, we propose a pole that is easy to use in engineering surveying. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this patent is to provide a benchmark that is convenient for engineering measurement. This patent provides connectors at the ends of both the first and third poles, which are connected to the upper and lower ends of the second pole. During assembly, only the connectors need to be controlled to complete the assembly, without the need to rotate the individual pole sections, thus improving assembly efficiency and enhancing the effectiveness of the benchmark.

[0004] The technical solution adopted by this patent to solve its technical problem is: a marker pole that is easy to use in engineering measurement, including a marker pole body, the marker pole body including a first pole body, a second pole body and a third pole body, the bottom end of the first pole body and the top end of the third pole body are provided with connecting parts, and the bottom end of the first pole body and the top end of the third pole body are respectively connected to the upper and lower ends of the second pole body through the connecting parts;

[0005] The connector includes a bearing and an external threaded ring. The bearing includes an inner ring and an outer ring, and a roller is rolled between the inner ring and the outer ring. Circular grooves are provided at the bottom of the side wall of the first rod and the top of the side wall of the third rod. The inner side wall of the inner ring is fixedly installed in the circular groove, and a connecting ring is fixedly installed on the outer side wall of the outer ring. The inner side wall of the external threaded ring is fixedly installed on the outer side wall of the second rod, and the inner side wall of the connecting ring is screwed onto the outer side wall of the external threaded ring.

[0006] Furthermore, the second rod has a square groove at the top and bottom center, and the bottom of the first rod and the top of the third rod are integrally formed with square columns, which are inserted into the square grooves.

[0007] Furthermore, the end of the square column is provided with a tapered surface.

[0008] Furthermore, the inner end face of the square column extends beyond the inner end face of the connecting ring.

[0009] Furthermore, the outer ring is located outside the annular groove, and the outer ring does not contact the inner wall of the annular groove.

[0010] Furthermore, both the first and third rods include an upright and an end plate. The end plate is fixedly installed at the end of the upright, and the end plate and the square column are integrally formed.

[0011] The beneficial effects of this patent are:

[0012] 1. This patent provides connectors at the ends of both the first and third rods, which are connected to the upper and lower ends of the second rod. During assembly, only the connectors need to be controlled to complete the assembly, eliminating the need to rotate individual rod sections, thus improving assembly efficiency and enhancing the effectiveness of the marker. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this patent.

[0014] Figure 2 This is a schematic diagram at point a of this patent.

[0015] Figure 3 This is a three-dimensional view of the square column of this patent.

[0016] Figure 4 This is a schematic diagram of the first rod in this patent.

[0017] Explanation of reference numerals in the attached drawings: 1. Marker body, 2. First rod body, 3. Second rod body, 4. Third rod body, 5. Connector, 6. Bearing, 7. Inner ring, 8. Roller, 9. Outer ring, 10. Circular groove, 11. Connecting ring, 12. External threaded ring, 13. Square groove, 14. Square column, 15. Conical surface, 16. Upright pole, 17. End plate. Detailed Implementation

[0018] The present patent is further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the patent. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art can make various alterations or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims.

[0019] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This is a schematic diagram of the structure of this patent. A marker for easy engineering measurement includes a marker body 1, which includes a first rod 2, a second rod 3 and a third rod 4. The bottom end of the first rod 2 and the top end of the third rod 4 are provided with connectors 5. The bottom end of the first rod 2 and the top end of the third rod 4 are respectively connected to the upper and lower ends of the second rod 3 through the connectors 5.

[0020] As shown in the figure, the first rod 2 and the third rod 4 are symmetrically installed at both ends of the second rod 2 through the connector 5.

[0021] The connecting component 5 includes a bearing 6 and an external threaded ring 12. The bearing 6 includes an inner ring 7 and an outer ring 9. A roller 8 is rolled between the inner ring 7 and the outer ring 9. A circular groove 10 is provided at the bottom of the side wall of the first rod 2 and the top of the side wall of the third rod 4. The inner side wall of the inner ring 7 is fixedly installed in the circular groove 10. A connecting ring 11 is fixedly installed on the outer side wall of the outer ring 9. The inner side wall of the external threaded ring 12 is fixedly installed on the outer side wall of the second rod 3. The inner side wall of the connecting ring 11 is screwed onto the outer side wall of the external threaded ring 12.

[0022] The bearing 6 is provided to allow the connecting ring 11 to rotate relative to the first rod 2.

[0023] The inner wall of the connecting ring 11 is provided with threads that match the outer wall of the external threaded ring 12.

[0024] Specifically, the top and bottom of the second rod 3 are provided with square grooves 13, and the bottom of the first rod 2 and the top of the third rod 4 are integrally formed with square columns 14, which are inserted into the square grooves 13.

[0025] To improve the manufacturing precision of the square column 14 and the square groove 13, an interference fit or clearance fit with elastic element compensation is adopted. During manufacturing, the dimensional tolerance of the square column 14 and the square groove 13 is controlled within ±0.05mm; if a clearance fit is adopted, an elastic rubber strip can be embedded in the inner wall of the square groove 13, and the elastic deformation of the rubber can be used to fill the gap to ensure a tight connection.

[0026] The mating dimensions of the square post 14 and the square groove 13 are designed according to the overall strength requirements of the marker. For example, the side length of the square post is 10-15mm, and the corresponding size of the square groove is 0.02-0.05mm larger. The width of the elastic rubber strip is adapted to the inner wall of the square groove, the thickness is 1-2mm, and the hardness is moderate, which can provide sufficient elasticity without being prone to excessive wear.

[0027] By setting a square post 14 inserted into a square slot 13, the movement trajectory of the first rod 2 and the third rod 4 is limited, so that the ends of the two rods can only be pressed against the end of the second rod 3 in a straight line, thus avoiding wear on the end face.

[0028] Specifically, the end of the square column 14 is provided with a tapered surface 15.

[0029] The tapered surface 15 reduces the size of the end of the square column 14, making it easier for the square column 14 to be inserted into the square groove 13 during assembly.

[0030] Specifically, the inner end face of the square column 14 extends beyond the inner end face of the connecting ring 11.

[0031] The inner end face mentioned above refers to the end where two objects are close to each other, while the outer end is the opposite.

[0032] By extending the inner end face of the square post 14 beyond the inner end face of the connecting ring 11, the square post 14 can be inserted into the square groove 13 and play a limiting role even when the connecting ring 11 is not screwed onto the external threaded ring 12.

[0033] Specifically, the outer ring 9 is located outside the annular groove 10, and the outer ring 9 does not contact the inner wall of the annular groove 10.

[0034] Specifically, both the first rod 2 and the third rod 4 include a vertical rod 16 and an end plate 17. The end plate 17 is fixedly installed at the end of the vertical rod 16, and the end plate 17 and the square column 14 are integrally formed.

[0035] like Figure 4 As shown, the top of the end plate 17 is the bottom wall of the annular groove 10, which facilitates the installation of the bearing 6 in the annular groove 10 during the initial installation.

[0036] Sealed bearings are used, and a structure for regular lubrication and maintenance is designed. The existing bearing 6 is replaced with a deep groove ball bearing with a rubber seal, which can effectively prevent external impurities from entering the bearing. An oil injection hole is opened on the end plate 17, and a sealing plug is installed in the hole to facilitate the regular injection of lubricating grease and maintain the bearing's good rotational performance.

[0037] The model of the sealed bearing is selected according to the size of the annular groove 10. For example, the inner diameter matches the inner ring 7, and the outer diameter is slightly smaller than the diameter of the annular groove 10 to ensure proper installation. The diameter of the oil filling hole is 3-5mm, and the depth should be such that it does not affect the bearing installation and the strength of the rod. The sealing plug is made of silicone to ensure the sealing effect.

[0038] Working principle: When the whole assembly needs to be disassembled, the connecting ring 11 can be rotated individually to disengage the connecting ring 11 from the external threaded ring 12 and the square column 14 from the square groove 13, thus completing the disassembly of the first rod 2, the third rod 4 and the second rod 3.

[0039] For example, traditional single-section rods have threaded posts at the ends, requiring the entire single-section rod to be rotated for connection. The single-section rod is heavy and inconvenient to operate and assemble. However, the connection can be achieved by operating the connecting ring 11 alone, as described above.

[0040] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.

[0041] This patent features connectors at the ends of both the first and third rods, which are then connected to the upper and lower ends of the second rod. During assembly, only the connectors need to be controlled to complete the assembly, eliminating the need to rotate individual rod sections, thus improving assembly efficiency and enhancing the effectiveness of the marker.

[0042] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0043] Although embodiments of this patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this patent, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pole for facilitating use in engineering surveying, characterised in that: The system includes a marker body (1), which includes a first pole (2), a second pole (3) and a third pole (4). The bottom end of the first pole (2) and the top end of the third pole (4) are provided with connectors (5). The bottom end of the first pole (2) and the top end of the third pole (4) are respectively connected to the upper and lower ends of the second pole (3) through connectors (5). The connector (5) includes a bearing (6) and an external threaded ring (12). The bearing (6) includes an inner ring (7) and an outer ring (9). A roller (8) is rolled between the inner ring (7) and the outer ring (9). A circular groove (10) is provided at the bottom of the side wall of the first rod (2) and the top of the side wall of the third rod (4). The inner side wall of the inner ring (7) is fixedly installed in the circular groove (10). A connecting ring (11) is fixedly installed on the outer side wall of the outer ring (9). The inner side wall of the external threaded ring (12) is fixedly installed on the outer side wall of the second rod (3). The inner side wall of the connecting ring (11) is screwed onto the outer side wall of the external threaded ring (12).

2. A marker post for facilitating engineering surveying use according to claim 1, characterised in that: The second rod (3) has a square groove (13) at the top and bottom middle. The bottom of the first rod (2) and the top of the third rod (4) are integrally formed with square columns (14), which are inserted into the square groove (13).

3. A marker post for facilitating engineering surveying use according to claim 2, characterised in that: The end of the square column (14) is provided with a tapered surface (15).

4. A benchmark for engineering surveying as described in claim 2, characterized in that: The inner end face of the square column (14) extends beyond the inner end face of the connecting ring (11).

5. A benchmark for engineering surveying as described in claim 1, characterized in that: The outer ring (9) is located outside the annular groove (10), and the outer ring (9) does not contact the inner wall of the annular groove (10).

6. A benchmark for engineering surveying as described in claim 1, characterized in that: The first rod (2) and the third rod (4) both include a vertical rod (16) and an end plate (17). The end plate (17) is fixedly installed at the end of the vertical rod (16). The end plate (17) and the square column (14) are integrally formed.

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