Telescopic auxiliary measuring marker post for surveying instrument

Abstract

The utility model relates to the technical field of surveying and mapping equipment, in particular to a telescopic auxiliary measuring marker post for a surveying and mapping instrument, which comprises a main post body, a lower extending rod capable of extending downwards from the inside of the main post body is mounted at the bottom of the main post body, a rotating ball is integrally formed on the main post body, a disc is arranged on the outer side of the rotating ball, and a telescopic rod is arranged on the disc. Three supporting legs distributed in a circular array are hinged to the bottom of the disc, and a spherical groove matched with the rotating ball in size is formed in the center of the disc. The rotating ball is matched with the spherical groove of the disc, so that the main rod body can rotate in all directions and be positioned, and the three supporting legs are combined to form a stable triangular supporting structure. The telescopic rod is connected with the fixed ring and the movable block, the angle can be locked after the main rod body rotates, the lower extension rod extends downwards after the angle is locked, the problem that the lower extension rod is difficult to adjust after being inserted into the ground is effectively avoided, meanwhile, shaking in the measuring process is prevented, and the measuring stability and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of surveying equipment technology, specifically to a retractable auxiliary measuring rod for a surveying instrument. Background Technology

[0002] In the field of surveying and mapping, measuring benchmarks are important tools that assist surveying instruments in carrying out measurement work. Their performance has a direct impact on the accuracy of measurement results and the efficiency of measurement work.

[0003] For example, patent application CN202223184746.1 discloses a building surveying pole, which includes land, with a surveying pole longitudinally installed on the land, and a conical plug integrally connected to the lower end of the surveying pole, wherein the conical plug is inserted into the land. The outer wall of the surveying pole is connected to a vertically adjustable guide support tube structure. The design of this utility model, including a ball ring, rotating ball, support guide tube, mounting plate, universal bubble level, inverted L-shaped bracket and base, can effectively reduce the time required to adjust the verticality of the surveying pole to the horizontal plane and can effectively improve the installation efficiency of the surveying pole. However, in actual use, this technical solution requires inserting the pole into the ground first and then adjusting the pole according to the multi-directional bubble level. Firstly, it lacks a locking mechanism, and the angle is easily affected by external factors during the measurement process. Secondly, inserting the pole into the ground in advance also increases the difficulty of subsequent adjustment of the pole angle.

[0004] In view of this, we propose a retractable auxiliary measuring rod for surveying instruments. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a retractable auxiliary measuring rod for surveying instruments.

[0006] The technical solution of this utility model is:

[0007] A telescopic auxiliary measuring pole for a surveying instrument includes a main pole body. A downwardly extending rod is mounted at the bottom of the main pole body. A rotating sphere is integrally formed on the main pole body. A disc is positioned on the outer side of the rotating sphere. Three support legs arranged in a circular array are hinged to the bottom of the disc. A spherical groove adapted to the size of the rotating sphere is formed at the center of the disc. The height of the disc is less than the diameter of the rotating sphere. A mounting ring is coaxially fixed to the top of the disc. A movable block is slidably mounted on the mounting ring. A fixed ring is fixed to the outer circumference of the main pole body above the rotating sphere. A telescopic rod is hinged to the outer wall of the fixed ring via a hinge seat. The end of the telescopic rod away from the fixed ring is hinged to the top of the movable block via a hinge seat. The height is adjusted via the downward extending rod at the bottom of the main pole body to adapt to different measurement scenarios. The rotating sphere and the spherical groove of the disc allow the main pole body to rotate and be positioned in all directions, forming a stable triangular support structure with the three support legs. The telescopic rod connects the fixed ring and the movable block, which can lock the angle after the main rod rotates. After locking the angle, the lower extension rod extends downward, effectively avoiding the problem of difficulty in adjustment after the lower extension rod is inserted into the ground. At the same time, it prevents shaking during the measurement process and improves the stability and accuracy of the measurement.

[0008] As a preferred technical solution, a rotating head is rotatably mounted at the bottom end of the main rod, and the lower extension rod is threadedly connected to the rotating head. The extension and retraction of the lower extension rod is achieved by rotating the rotating head.

[0009] As a preferred technical solution, two drive rods are symmetrically fixedly connected to the outer ring wall of the rotating head, and a silicone sleeve is fixed to the outer wall of each drive rod. The drive rods on the outer ring wall of the rotating head facilitate manual rotation of the rotating head by the operator, and the silicone sleeves increase the friction between the hand and the drive rod.

[0010] As a preferred technical solution, a multi-directional bubble level is installed at the center of the top of the main pole, and the bottom of the lower extension rod is tapered. The multi-directional bubble level at the top of the main pole can display the horizontal status of the pole in real time, assisting the operator to quickly adjust the pole to a vertical position and improve measurement accuracy. The tapered design at the bottom of the lower extension rod facilitates insertion into the ground, enhances the stability of the pole on soft ground, and prevents tilting or swaying.

[0011] As a preferred technical solution, the telescopic rod includes an outer sleeve hinged to a fixed ring. A movable rod, hinged to the top of a movable block, is slidably installed inside the outer sleeve. A fine-tuning knob, threaded to the outer wall of the movable rod, is rotatably mounted on the outer sleeve. By rotating the fine-tuning knob, the extension length of the movable rod can be precisely controlled, thereby fine-tuning the angle of the main rod body to achieve high-precision angle adjustment and meet the requirements of precision measurement.

[0012] As a preferred technical solution, an annular limiting groove is provided on both the inner and outer ring walls of the mounting ring, which is slidably connected to the movable block. This provides guidance and limiting for the movable block, ensuring that the movable block slides smoothly along the circumference of the mounting ring, preventing the movable block from detaching from the mounting ring, and ensuring the stability and reliability of the telescopic rod when adjusting the angle of the main rod.

[0013] As a preferred technical solution, a clamping plate is provided inside the movable block on the outer side of the mounting ring. A clamping bolt is threaded onto the movable block, and the clamping bolt is rotatably connected to the clamping plate. When the clamping bolt is tightened, the clamping plate is tightly fitted against the outer ring wall of the mounting ring. Tightening the clamping bolt ensures that the clamping plate and the outer ring wall of the mounting ring are tightly fitted, generating friction to lock the position of the movable block. This design can fix the angle of the main rod after adjustment, prevent angle changes due to external forces or vibrations, and ensure angle stability during measurement.

[0014] As a preferred technical solution, both the top and bottom of the support leg are integrally formed with a connecting rod. The connecting rod at the top is hinged to the bottom of the disc via a hinge seat, and the connecting rod at the bottom is hinged to a base plate via a hinge seat. A positioning pin is fixedly connected to each of the four corners of the bottom of the base plate. The connecting rods at the top and bottom of the support leg are hinged together, allowing the support leg to flexibly adjust its angle to adapt to different terrains. The base plate increases the support area, and the positioning pins inserted into the ground further enhance stability, especially on uneven or soft ground, effectively preventing the marker from tipping over or shifting, thus improving measurement reliability.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a rotating ball and a spherical groove on a disc to allow the main rod to rotate and be positioned in all directions, forming a stable triangular support structure with three supporting legs. The telescopic rod connects a fixed ring and a movable block, locking the angle after the main rod rotates. After locking the angle, a lower extension rod extends downwards, effectively preventing the difficulty in adjustment caused by the lower extension rod inserting into the ground. It also prevents swaying during measurement, improving measurement stability and accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 In this utility model Figure 1 Enlarged view of point A in the image;

[0019] Figure 3 This is a front view of a partial structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the support leg in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Disc; 10. Mounting ring; 100. Annular limiting groove; 11. Movable block; 110. Clamping plate; 111. Clamping bolt; 2. Support leg; 20. Connecting rod; 21. Base plate; 22. Positioning pin; 3. Main rod body; 30. Rotating ball; 31. Fixing ring; 32. Multi-directional bubble level; 33. Telescopic rod; 330. Outer sleeve; 331. Movable rod; 332. Fine adjustment knob; 34. Rotating head; 35. Drive rod; 36. Silicone sleeve; 4. Lower extension rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to the accompanying drawings. This utility model provides a technical solution:

[0025] like Figure 1 and Figure 2 As shown, a telescopic auxiliary measuring rod for a surveying instrument includes a main rod body 3. A lower extension rod 4, which can extend downwards from the bottom of the main rod body 3, is installed at the bottom. A rotating ball 30 is integrally formed on the main rod body 3. A disc 1 is provided on the outer side of the rotating ball 30. Three support legs 2 arranged in a circular array are hinged to the bottom of the disc 1. A spherical groove adapted to the size of the rotating ball 30 is opened at the center of the disc 1. The height of the disc 1 is smaller than the diameter of the rotating ball 30. A mounting ring 10 is coaxially fixed to the top of the disc 1. A movable block 11 is slidably mounted on the mounting ring 10. A fixing ring 31 is fixed above the rotating ball 30 on the outer circumference of the main rod body 3. A telescopic rod 33 is hinged to the outer wall of the fixing ring 31 via a hinge seat. The end of the telescopic rod 33 away from the fixing ring 31 is hinged to the top of the movable block 11 via a hinge seat. The height is adjusted by the lower extension rod 4 at the bottom of the main rod body 3 to adapt to different measurement scenarios. The rotating ball 30 engages with the spherical groove of the disc 1, allowing the main rod 3 to rotate and be positioned in all directions, forming a stable triangular support structure with the three support legs 2. The telescopic rod 33 connects the fixing ring 31 and the movable block 11, and can lock the angle after the main rod 3 rotates. After locking the angle, the lower extension rod 4 extends downward, effectively avoiding the problem of difficulty in adjustment after the lower extension rod 4 is inserted into the ground, while preventing shaking during measurement and improving measurement stability and accuracy.

[0026] like Figure 1As shown, in a preferred embodiment, a rotating head 34 is rotatably mounted at the bottom end of the main rod 3, and the lower extension rod 4 is threadedly connected to the rotating head 34. The extension and retraction of the lower extension rod 4 are achieved by rotating the rotating head 34.

[0027] like Figure 1 As shown, in a preferred embodiment, two drive rods 35 are symmetrically fixedly connected to the outer ring wall of the rotating head 34, and a silicone sleeve 36 is fixed to the outer wall of each drive rod 35. The drive rods 35 on the outer ring wall of the rotating head 34 facilitate manual rotation of the rotating head 34 by the operator, and the silicone sleeves 36 increase the friction between the hand and the drive rods 35.

[0028] like Figure 1 As shown in the preferred embodiment, a multi-directional bubble level 32 is installed at the center of the top of the main rod 3, and the bottom of the lower extension rod 4 is tapered. The multi-directional bubble level 32 at the top of the main rod 3 can display the horizontal status of the target rod in real time, assisting the operator to quickly adjust the target rod to a vertical position and improve measurement accuracy. The tapered design at the bottom of the lower extension rod 4 facilitates insertion into the ground, enhances the stability of the target rod on soft ground, and prevents tilting or shaking.

[0029] like Figure 3 As shown, in a preferred embodiment, the telescopic rod 33 includes an outer sleeve 330 hinged to the fixed ring 31. A movable rod 331, hinged to the top of the movable block 11, is slidably installed inside the outer sleeve 330. A fine-tuning knob 332, threadedly connected to the outer wall of the movable rod 331, is rotatably mounted on the outer sleeve 330. By rotating the fine-tuning knob 332, the extension length of the movable rod 331 can be precisely controlled, thereby fine-tuning the angle of the main rod body 3, achieving high-precision angle adjustment, and meeting the requirements of precision measurement.

[0030] like Figure 3 As shown, in a preferred embodiment, both the inner and outer ring walls of the mounting ring 10 are provided with an annular limiting groove 100 that slides in connection with the movable block 11. This provides guidance and limiting for the movable block 11, ensuring that the movable block 11 slides smoothly along the circumference of the mounting ring 10, preventing the movable block 11 from detaching from the mounting ring 10, and ensuring the stability and reliability of the telescopic rod 33 when adjusting the angle of the main rod body 3.

[0031] like Figure 2 and Figure 3As shown, in a preferred embodiment, a clamping plate 110 is provided inside the movable block 11, located outside the mounting ring 10. A clamping bolt 111 is threaded onto the movable block 11, and the clamping bolt 111 is rotatably connected to the clamping plate 110. When the clamping bolt 111 is tightened, the clamping plate 110 is tightly fitted against the outer ring wall of the mounting ring 10. Tightening the clamping bolt 111 allows the clamping plate 110 to fit tightly against the outer ring wall of the mounting ring 10, generating friction to lock the position of the movable block 11. This design can fix the adjusted angle of the main rod 3, preventing angle changes due to external forces or vibrations, and ensuring angle stability during measurement.

[0032] like Figure 4 As shown in the preferred embodiment, the top and bottom of the support leg 2 are integrally formed with a connecting rod 20. The connecting rod 20 at the top is hinged to the bottom of the disc 1 via a hinge seat, and the connecting rod 20 at the bottom is hinged to a base plate 21 via a hinge seat. A positioning pin 22 is fixedly connected to each of the four corners of the bottom of the base plate 21. The connecting rods 20 at the top and bottom of the support leg 2 are hinged via hinge seats, allowing the support leg 2 to flexibly adjust its angle to adapt to different terrains. The base plate 21 increases the support area, and the positioning pins 22 inserted into the ground further enhance stability, especially on uneven or soft ground, effectively preventing the marker from tipping over or shifting, and improving measurement reliability.

[0033] When using the telescopic auxiliary measuring rod of this utility model, after arriving at the measurement location, the support leg 2 is hinged to the bottom hinge seat of the disc 1 via the top connecting rod 20, allowing for flexible angle adjustment to adapt to the terrain. The bottom plate 21 hinged to the bottom connecting rod 20 increases the support area, and the positioning pin 22 is inserted into the ground for further fixation. Through the cooperation of the rotating ball 30 and the spherical groove of the disc 1, the main rod 3 is rotated to a suitable angle. Then, the angle of the main rod 3 is finely adjusted by rotating the fine adjustment knob 332 on the outer sleeve 330 to precisely control the extension length of the movable rod 331. After adjusting the angle, the clamping bolt 111 on the movable block 11 is tightened to make the clamping plate 110 fit tightly against the outer ring wall of the mounting ring 10, locking the angle of the main rod 3 and preventing shaking during measurement, thereby ensuring the stability and accuracy of the measurement. During the adjustment process, the multi-directional bubble level 32 displays the horizontal status of the rod in real time, assisting in adjusting the rod to a vertical position. Then, the rotating head 34 at the bottom of the main rod 3 is rotated to extend the lower extension rod 4 downward to a suitable height through threaded transmission.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A telescopic auxiliary surveying pole for a plotter, characterized in that: The main rod (3) includes a main rod body (3), a lower extension rod (4) that can extend downward from its interior is installed at the bottom of the main rod body (3), a rotating ball (30) is integrally formed on the main rod body (3), a disc (1) is provided on the outside of the rotating ball (30), three support legs (2) arranged in a circular array are hinged at the bottom of the disc (1), a spherical groove adapted to the size of the rotating ball (30) is opened at the center of the disc (1), the height of the disc (1) is less than the diameter of the rotating ball (30), a mounting ring (10) is fixed coaxially at the top of the disc (1), a movable block (11) is slidably installed on the mounting ring (10), a fixing ring (31) is fixed on the outer circumference of the main rod body (3) above the rotating ball (30), a telescopic rod (33) is hinged to the outer ring wall of the fixing ring (31) through a hinge seat, and the end of the telescopic rod (33) away from the fixing ring (31) is hinged to the top of the movable block (11) through a hinge seat.

2. The telescopic auxiliary staff for plotter according to claim 1, characterized in that: A rotating head (34) is rotatably installed at the bottom end of the main rod (3), and the lower extension rod (4) is threadedly connected to the rotating head (34).

3. The telescopic auxiliary staff for plotter according to claim 2, characterized in that: Two drive rods (35) are symmetrically fixedly connected to the outer ring wall of the rotating head (34), and a silicone sleeve (36) is fixed to the outer wall of each drive rod (35).

4. The telescopic auxiliary staff for plotter according to claim 3, characterized in that: A multi-directional bubble level (32) is installed at the top center of the main rod (3), and the bottom of the lower extension rod (4) is conical.

5. The retractable auxiliary measuring rod for a surveying instrument as described in claim 4, characterized in that: The telescopic rod (33) includes an outer sleeve (330) hinged to a fixed ring (31), and a movable rod (331) hinged to the top of the movable block (11) is slidably installed inside the outer sleeve (330). A fine adjustment knob (332) threaded to the outer wall of the movable rod (331) is rotatably installed on the outer sleeve (330).

6. The telescopic auxiliary staff for plotter according to claim 5, characterized in that: An annular limiting groove (100) is provided on both the inner and outer ring walls of the mounting ring (10) and is slidably connected to the movable block (11).

7. The telescopic auxiliary staff for plotter according to claim 6, characterized in that: Inside the movable block (11), a clamping plate (110) is provided outside the mounting ring (10). A clamping bolt (111) is threaded onto the movable block (11). The clamping bolt (111) is rotatably connected to the clamping plate (110), and when the clamping bolt (111) is tightened, the clamping plate (110) is tightly fitted to the outer ring wall of the mounting ring (10).

8. The telescopic auxiliary staff for plotter according to claim 7, characterized in that: The support leg (2) has a connecting rod (20) integrally formed at the top and bottom. The connecting rod (20) at the top is hinged to the bottom of the disc (1) through a hinge seat. The connecting rod (20) at the bottom is hinged to a base plate (21) through a hinge seat. A positioning pin (22) is fixedly connected to each of the four corners of the bottom of the base plate (21).

Images