A measuring device for land management

Abstract

The application relates to the field of land measurement, in particular to a measuring device for land management. The device comprises an extension rod, a machine head arranged at the top of the extension rod, and a hand book arranged on the extension rod; further comprising a mounting mechanism arranged on the extension rod, a lifting ring slidingly arranged on the mounting mechanism in the vertical direction, a plurality of reinforcing support rods penetratingly arranged on the lifting ring, a limiting assembly arranged on the lifting ring to limit the movement of the reinforcing support rods, before the measuring point, the reinforcing support rods can freely move in the vertical direction, after the measuring point and the vertical state are adjusted, the freedom of the reinforcing support rods in the vertical direction is limited through the limiting assembly. In the application, the natural falling of the plurality of reinforcing support rods can adapt to the uneven ground, after the reinforcing support rods are fixed through the clamping blocks, the extension rod can be vertically and stably erected on the ground, at this time, the hand book cannot cause the extension rod to unintentionally tilt, and the measuring precision is maximally ensured.

Description

Technical Field

[0001] This invention relates to the field of land surveying technology, and more particularly to a surveying device for land management. Background Technology

[0002] Land management is a comprehensive field involving multiple stages such as cadastral surveying, planning, approval, and supervision. It demands high accuracy and authority in measurement data, requiring a wide variety of surveying equipment, ranging from traditional optical instruments to modern satellite and aerial remote sensing equipment, forming a complete technological system. Among these, RTK (Real-Time Kinematic) positioning technology is widely used in surveying, agriculture, engineering construction, and UAV navigation—fields requiring high positioning accuracy—due to its ease of use and high precision. Currently, RTK systems are equipped with tilt compensation, maintaining good accuracy even when the extension rod is tilted. However, in formal, high-precision land management surveying, surveyors prioritize ensuring the rod is straight, using tilt compensation as a backup for complex terrain rather than relying on it routinely. While a bubble level is used to ensure the extension rod's verticality, operators still need to manipulate a handheld device mounted on the extension rod. However, maintaining the extension rod's verticality while manipulating the handheld device can unintentionally cause discrepancies between the measured and ideal values.

[0003] Chinese patent CN213902381U discloses an RTK measuring rod for confirming land contractual management rights. Through the design of the auxiliary seat, auxiliary equipment can be used simultaneously with the RTK measuring body to perform measurements, which improves the accuracy and efficiency of the measurement. Through the setting of the measuring platform, it can be applied to different RTK equipment and other measuring equipment that require measuring rods, and has strong versatility.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: although the support base can provide assistance, it is difficult to quickly maintain the vertical position of the measuring rod. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art that it is difficult to ensure the verticality of the measuring rod when operating the handheld device, and to propose a measuring device for land management.

[0006] The technical solution of the present invention: A measuring device for land management includes an extension rod, a measuring head disposed at the top of the extension rod, and a handheld device disposed on the extension rod; it also includes an installation mechanism disposed on the extension rod, a lifting ring slidably disposed on the installation mechanism in the vertical direction, a plurality of reinforcing support rods being disposed through the lifting ring, and a limiting component for restricting the movement of the reinforcing support rods disposed on the lifting ring. Before measuring the point, the reinforcing support rods can move freely in the vertical direction. After measuring the point and adjusting the vertical state, the degree of freedom of the reinforcing support rods in the vertical direction is restricted by the limiting component.

[0007] Preferably, the extension rod includes an upper outer cylinder and a lower outer cylinder that are connected to each other, and a support rod that is inserted into the upper outer cylinder and the lower outer cylinder. The machine head is located at the top of the support rod, a conical measuring head is located at the bottom of the lower outer cylinder, and a mounting frame is located on the upper outer cylinder. The handheld device is clipped onto the mounting frame.

[0008] Preferably, multiple vertically opposed mounting seats a are provided at the bottom of the outer peripheral wall of the upper outer cylinder and the top of the outer peripheral wall of the lower outer cylinder. The mounting seats a are provided with vertical threaded holes, and two mounting seats a are connected by mounting bolts.

[0009] Preferably, the mounting mechanism includes an upper mounting ring, a cylinder disposed at the bottom of the outer edge of the upper mounting ring, and a barrel connected to the bottom of the cylinder. The upper outer cylinder and the lower outer cylinder are both located inside the barrel, the cylinder, and the upper mounting ring. A lifting ring is slidably disposed on the outer peripheral wall of the cylinder. Multiple vertically opposed mounting seats a are provided at the bottom of the outer peripheral wall of the upper outer cylinder and the top of the outer peripheral wall of the lower outer cylinder. Vertical threaded holes are provided on the mounting seats a. The upper mounting ring is located between the vertically opposed mounting seats a. The mounting seats a and the upper mounting ring are connected by mounting bolts.

[0010] Preferably, the lifting ring is provided with multiple pairs of clamping blocks for clamping the reinforcing support rod. One clamping block is fixedly mounted on the lifting ring, and the other clamping block is slidably mounted on the lifting ring. A spring is provided between the two clamping blocks. The lifting ring is provided with a clamping assembly that drives the clamping blocks to slide for clamping or releasing. Both the lifting ring and the barrel are provided with clearance holes for the reinforcing support rod to pass through.

[0011] Preferably, the clamping assembly includes a rotating ring rotatably mounted on a lifting ring, a fixed plate mounted on the outer wall of the rotating ring, and a plurality of push rods that contact the sliding clamping blocks, as well as an electric push rod a mounted on the lifting ring, the telescopic end of which contacts the fixed plate.

[0012] Preferably, an installation seat b is provided on the outer peripheral wall of the cylinder, and an electric push rod b is vertically installed on the installation seat b. The top of the telescopic end of the electric push rod b is connected to the lifting ring.

[0013] Preferably, a control box is installed at the bottom of the lifting ring, containing a power supply and a control system. The control system is connected to both electric push rod a and electric push rod b. A button station is installed on the extension rod, and the control system is electrically connected to the button station. Compared with the prior art, the present invention has the following beneficial technical effects: The natural descent of multiple reinforcing support rods adapts to uneven ground. After the reinforcing support rods are fixed by clamping blocks, the extension rod stands vertically and stably on the ground. At this time, the operating handpiece will not cause the extension rod to tilt unintentionally, maximizing measurement accuracy. Furthermore, by setting up a structure where electric push rod b drives the lifting ring downwards, multiple reinforcing support rods can be inserted into the ground, enhancing the support stability of the extension rod on soft ground. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure after removing the lifting ring;

[0016] Figure 3 for Figure 2 A schematic diagram of the structure after removing the top cover ring and the barrel body;

[0017] Figure 4 for Figure 3 A structural diagram from another perspective;

[0018] Figure 5 for Figure 3 Enlarged diagram of point A in the diagram;

[0019] Reference numerals: 1. Upper outer cylinder; 2. Lower outer cylinder; 3. Conical measuring head; 4. Support rod; 5. Machine head; 6. Handbook; 7. Mounting bracket; 8. Locking bracket; 9. Cylinder body; 10. Lifting ring; 11. Handle; 12. Cylinder body; 13. Top cover ring; 14. Lifting ring; 15. Guide rail; 16. Upper mounting ring; 17. Mounting seat a; 18. Mounting bolt; 19. Clamping block; 20. Reinforcing support rod; 21. Limiting plate; 22. Spring; 23. Rotating ring; 24. Push rod; 25. Fixing plate; 26. Electric push rod a; 27. Mounting seat b; 28. Electric push rod b; 29. ​​Control box; 30. Clearance groove a; 31. Clearance groove b; 32. Slide rod a; 33. Slide rod b; 34. Button station; 35. Horizontal bubble. Detailed Implementation

[0020] Example 1; as Figures 1-3As shown, this invention proposes a surveying device for land management, comprising an extension rod, a receiver head 5 mounted on the top of the extension rod, and a handheld device 6 mounted on the extension rod. The receiver head 5 is a GNSS receiver. The base station continuously receives signals from all visible satellites. Based on its known coordinates and the received satellite data, it calculates the total error value of each satellite signal in real time and transmits this error data in real time via a data link. The rover station simultaneously receives satellite signals and correction data from the base station. It uses this correction data to correct its received original satellite observations in real time. Using the corrected high-precision observations, it calculates its own precise three-dimensional coordinates. Then, through multi-point measurement, it obtains data such as length, area, and slope to complete the land management surveying work. The receiver head 5 has a conventional structure, and the handheld device 6 is used in conjunction with it. The technologies of the receiver head 5 and the handheld device 6 are mature and will not be described in detail here. The device also includes an installation mechanism mounted on the extension rod. A lifting ring 14 is slidably mounted on the installation mechanism along the vertical direction. Multiple reinforcing support rods 20 are mounted through the lifting ring 14. Limiting components are provided on the lifting ring 14 to restrict the movement of the reinforcing support rods 20. In its natural state, the reinforcing support rod 20 can move freely up and down in the vertical direction. After the limiting component stops it, the reinforcing support rod 20 can no longer move up or down. Before the measuring point, the reinforcing support rod 20 can move freely in the vertical direction. After the measuring point is reached and the vertical position is adjusted, the limiting component restricts the degree of freedom of the reinforcing support rod 20 in the vertical direction. Multiple reinforcing support rods 20 can support the ground simultaneously, maintaining the overall vertical position and providing auxiliary support. In this state, the operator can hold the extension rod with one hand to maintain basic stability, and use the other hand to operate the handheld device. There will be no tilting. The above measurement method is more suitable for use on harder ground, with multiple reinforcing support rods 20 supporting the ground. However, when the area around the measurement point is soft, such as loose soil, after adjusting the vertical position with the level bubble, the height of the lifting ring 14 can be changed to insert multiple reinforcing support rods 20 into the ground at a certain depth simultaneously to improve stability. It should be noted that this method requires the operator to hold the extension rod and apply a certain downward holding force. Once the reinforcing support rod 20 is inserted into the ground, it can be released.

[0021] Example 2; as Figure 1 and Figure 5 As shown, this invention proposes a measuring device for land management. Compared with Embodiment 1, this embodiment details the structure of the extension rod.

[0022] The extension rod includes an upper outer cylinder 1 and a lower outer cylinder 2 that are connected to each other, and a support rod 4 that is inserted into the upper outer cylinder 1 and the lower outer cylinder 2. A locking frame 8 is set at the top of the upper outer cylinder 1 to lock the support rod 4. The locking frame 8 is also equipped with a horizontal bubble 35, which is used to determine the verticality of the extension rod. The machine head 5 is set at the top of the support rod 4, and the two are threaded together. A conical measuring head 3 is set at the bottom of the lower outer cylinder 2 to facilitate accurate measurement. A mounting frame 7 is set on the upper outer cylinder 1, and the handheld device 6 is clipped onto the mounting frame 7. The locking frame 8 and the mounting frame 7 are conventional structures in RTK equipment and will not be described in detail here.

[0023] Multiple mounting seats a17 are provided at the bottom of the outer peripheral wall of the upper outer cylinder 1 and the top of the outer peripheral wall of the lower outer cylinder 2. Each mounting seat a17 has a vertical threaded hole. The two mounting seats a17 are connected by mounting bolts 18. In this application, the upper outer cylinder 1 and the lower outer cylinder 2 can be directly connected and used without adding any additional support parts, and can be used as a conventional extension rod.

[0024] Example 3; as Figures 1-5 As shown, this invention proposes a measuring device for land management. Compared with Embodiment 2, this embodiment details the structure of the installation mechanism.

[0025] The mounting mechanism includes an upper mounting ring 16, a cylindrical body 12 disposed at the bottom of the outer edge of the upper mounting ring 16, and a barrel 9 connected to the bottom of the cylindrical body 12. The upper outer cylinder 1 and the lower outer cylinder 2 are both located within the barrel 9, the cylindrical body 12, and the upper mounting ring 16. A lifting ring 14 is slidably disposed on the outer peripheral wall of the cylindrical body 12. In an optional embodiment, multiple guide rails 15 are vertically disposed on the outer peripheral wall of the cylindrical body 12, and multiple sliding grooves that cooperate with the guide rails 15 are disposed on the inner peripheral surface of the lifting ring 14. The lifting ring 14 is located within the barrel 9, and the bottom of the outer peripheral wall of the upper outer cylinder 1 and the lower outer cylinder... 2. Multiple vertically opposite mounting seats a17 are provided on the top of the outer peripheral wall. Vertical threaded holes are provided on the mounting seats a17. The upper mounting ring 16 is located between the vertically opposite mounting seats a17. The mounting seats a17 and the upper mounting ring 16 are connected by mounting bolts 18. During installation, the bottom of the upper outer cylinder 1 is inserted into the upper mounting ring 16 from above, and the lower outer cylinder 2 is inserted into the upper mounting ring 16 from below. The mounting seats a17 contact the upper mounting ring 16. At this time, the upper outer cylinder 1 and the lower outer cylinder 2 are also in contact. Then, they are fixed by mounting bolts 18.

[0026] Furthermore, the lifting ring 14 is provided with multiple pairs of clamping blocks 19 for clamping the reinforcing support rods 20. One clamping block 19 is fixedly mounted on the lifting ring 14, and the other clamping block 19 is slidably mounted on the lifting ring 14. When sliding, the two clamping blocks 19 move closer or further apart. A spring 22 is provided between the two clamping blocks 19. The lifting ring 14 is provided with a clamping assembly that drives the clamping blocks 19 to slide for clamping or releasing. Specifically, the lifting ring 14 is provided with multiple arc-shaped clearance grooves b31. The bottom of the clamping block 19 is provided with a sliding rod b33 that passes through the clearance groove b31. The bottom of the sliding rod b33 is larger and abuts against the bottom of the lifting ring 14. In order to avoid The internal structure of the barrel body 9 is directly exposed, which affects the aesthetics. The top of the barrel body 9 is equipped with a top cover ring 13, and a lifting ring 10 is placed on the top cover ring 13. A handle 11 is set on the lifting ring 10. A limiting plate 21 is set on the top of the reinforcing support rod 20. By moving the lifting ring 10 upward, multiple reinforcing support rods 20 can be moved upward as a whole, so that the reinforcing support rods 20 are higher than the conical measuring head 3. This allows it to be used in situations where it is difficult to keep it vertical, such as measuring the corner of a wall or other positions where it can only be measured at an angle. The lifting ring 14, the top cover ring 13, the lifting ring 10, and the barrel body 9 are all equipped with clearance holes for the reinforcing support rods 20 to pass through.

[0027] Furthermore, the clamping assembly includes a rotating ring 23 rotatably mounted on the lifting ring 14, a fixed plate 25 mounted on the outer wall of the rotating ring 23, and multiple push rods 24 that contact the sliding clamping block 19, as well as an electric push rod a26 mounted on the lifting ring 14. The telescopic end of the electric push rod a26 is provided with a ball head, which contacts the fixed plate 25. Specifically, the lifting ring 14 is provided with multiple arc-shaped clearance grooves a30, and the bottom of the rotating ring 23 is provided with a sliding rod a32 that passes through the clearance grooves a30. The bottom of the sliding rod a32 is larger and abuts against the bottom of the lifting ring 14. When the electric push rod a26 extends, it pushes the rotating ring 23 to rotate counterclockwise. The push rod 24 drives the clamping block 19 to move and clamp the reinforcing support rod 20. When the electric push rod a26 retracts, the clamping block 19 moves in the opposite direction under the action of the spring 22, releasing the fixation of the reinforcing support rod 20.

[0028] Example 4; as Figure 1 , Figure 4 and Figure 5 As shown, this invention proposes a measuring device for land management. Compared with Embodiment 3, this embodiment details the electrical connection structure.

[0029] An installation seat b27 is provided on the outer peripheral wall of the cylinder 12, and an electric push rod b28 is vertically installed on the installation seat b27. The top of the telescopic end of the electric push rod b28 is connected to the lifting ring 14. A control box 29 is installed at the bottom of the lifting ring 14. The control box 29 contains a power supply and control system. The control system is connected to both the electric push rod a26 and the electric push rod b28. A button station 34 is installed on the extension rod. Specifically, the button station 34 is installed on the mounting bracket 7. The control system is electrically connected to the button station 34. The operation of the electric push rod a26 and the electric push rod b28 is controlled by the button station 34. Before measurement, the electric push rod a26 is in the retracted state, and the reinforcing support rod 20 hangs down naturally. After the conical measuring head 3 is placed at the measurement point, the extension rod is adjusted to a vertical state by the level bubble 35. Then, the electric push rod a26 is extended by the button station 34, and the reinforcing support rod 20 is fixed by the clamping block 19. The multi-point support here ensures that the extension rod is stably in a vertical state. Then, when operating the handbook 6, there is no need to worry about the extension rod tilting, which can maximize the measurement accuracy.

[0030] In summary, when using this invention, before measurement, the electric push rod a26 is in a retracted state, and the reinforcing support rod 20 hangs naturally. After placing the conical measuring head 3 at the measurement point, the extension rod is adjusted to a vertical state using the level bubble 35. Then, the electric push rod a26 is extended by the button station 34, and the reinforcing support rod 20 is fixed by the clamping block 19. Here, multiple points of support ensure that the extension rod is stably in a vertical state. Then, when operating the handbook 6, there is no need to worry about the extension rod tilting, which can maximize the measurement accuracy. When measuring on softer ground, after adjusting the verticality of the extension rod, the button station 34 controls the electric push rod b28 to retract, which drives the lifting ring 14 to descend. The descent of the lifting ring 14 will simultaneously drive multiple reinforcing support rods 20 to insert into the ground, enhancing stability. However, in this case, it should be noted that the operator needs to hold the extension rod and apply a certain downward holding force first. Once the reinforcing support rod 20 is inserted into the ground, it can be released. In this invention, the natural hanging of multiple reinforcing support rods 20 adapts to uneven ground. After the reinforcing support rods 20 are fixed by the clamping block 19, the extension rod stands vertically and stably on the ground. At this point, the operating manual 6 will not cause the extension rod to tilt unintentionally, maximizing measurement accuracy. Furthermore, by setting up a structure where the electric push rod b28 drives the lifting ring 14 downwards, multiple reinforcing support rods 20 can be inserted into the ground, enhancing the support stability of the extension rod on soft ground. The embodiments of this invention have been described in detail above with reference to the accompanying drawings. However, this invention is not limited thereto, and various modifications can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of this invention.

Claims

1. A measuring device for land management, comprising an elongated pole, a head (5) arranged at the top of the elongated pole, and a hand book (6) arranged on the elongated pole; characterized in that, The installation mechanism includes an upper installation ring (16), a barrel (12) arranged at the bottom of the outer edge of the upper installation ring (16), and a bucket (9) connected to the bottom of the barrel (12). The lifting ring (14) is slidingly arranged on the outer peripheral wall of the barrel (12). A plurality of clamping blocks (19) for clamping the reinforcing support rods (20) are arranged on the lifting ring (14). One clamping block (19) is fixedly arranged on the lifting ring (14), and the other clamping block (19) is slidingly arranged on the lifting ring (14). A spring (22) is arranged between the two clamping blocks (19). The lifting ring (14) is provided with a clamping assembly for driving the clamping blocks (19) to slide for clamping or releasing. The lifting ring (14) and the bucket (9) are each provided with an avoiding hole through which the reinforcing support rod (20) passes. The clamping assembly includes a rotating ring (23) rotatably arranged on the lifting ring (14), a fixed plate (25) arranged on the outer wall of the rotating ring (23), a plurality of push rods (24) in contact with the sliding clamping blocks (19), and an electric push rod a (26) arranged on the lifting ring (14). The extension rod includes an upper outer cylinder (1) and a lower outer cylinder (2) connected to each other, and a support rod (4) fitted into the upper outer cylinder (1) and the lower outer cylinder (2). A hand book (6) is clamped on the mounting bracket (7) arranged on the upper outer cylinder (1). The extension rod includes an upper outer cylinder (1) and a lower outer cylinder (2) connected to each other, and a support rod (4) fitted into the upper outer cylinder (1) and the lower outer cylinder (2). A hand book (6) is clamped on the mounting bracket (7) arranged on the upper outer cylinder (1).

2. The measuring device for land management according to claim 1, characterized in that, The bottom of the outer peripheral wall of the upper outer cylinder (1) and the top of the outer peripheral wall of the lower outer cylinder (2) are each provided with a plurality of mounting seats a (17) opposite in the up-down direction. The mounting seats a (17) are provided with vertical threaded holes. The two mounting seats a (17) are connected by mounting bolts (18).

3. The measuring device for land management according to claim 2, characterized in that, The upper outer cylinder (1) and the lower outer cylinder (2) are located in the bucket (9), the barrel (12) and the upper installation ring (16). The bottom of the outer peripheral wall of the upper outer cylinder (1) and the top of the outer peripheral wall of the lower outer cylinder (2) are each provided with a plurality of mounting seats a (17) opposite in the up-down direction. The mounting seats a (17) are provided with vertical threaded holes. The upper installation ring (16) is located between the mounting seats a (17) opposite in the up-down direction. The mounting seats a (17) and the upper installation ring (16) are connected by mounting bolts (18).

4. The surveying apparatus for land management according to claim 2, wherein ​ 5. The surveying apparatus for land management according to claim 1, wherein The lifting ring (14) is provided with a control box (29) at the bottom, the control box (29) is provided with a power supply and a control system, the control system is connected with the electric push rod a (26) and the electric push rod b (28), and a button station (34) is arranged on the extension rod, and the control system is electrically connected with the button station (34).

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