A leveling staff erecting device

Abstract

The application relates to a leveling rod erecting device, which relates to the technical field of engineering construction measurement and comprises a support frame and a fixing assembly; the support frame comprises a mounting platform and a plurality of support legs which are detachably connected below the mounting platform; the fixing assembly comprises an elastic fixing piece and a spherical cavity arranged on the mounting platform; the elastic fixing piece is accommodated in the spherical cavity and is matched with the spherical surface of the spherical cavity; and the elastic fixing piece is used for clamping and fixing a leveling rod. The leveling rod is automatically swung to a plumb state under the action of gravity through the spherical surface matching of the elastic fixing piece and the spherical cavity, manual repeated calibration is not needed, the measurement efficiency and accuracy are improved, the elastic fixing piece can self-adaptively clamp leveling rods of different specifications, the clamping is stable and the rod surface is not damaged, and the device has the advantages of simple structure, convenient operation and single-person erecting and storage.

Description

Technical Field

[0001] This application relates to the field of engineering construction surveying technology, and in particular to a leveling rod erection device. Background Technology

[0002] Leveling is a fundamental task in engineering surveying, widely used in elevation control and settlement monitoring in fields such as building construction, road and bridge construction, and water conservancy and hydropower. The leveling rod, as the core tool in leveling, directly affects the accuracy of the measurement results due to its verticality and stability. With the continuous expansion of engineering construction scale and the acceleration of construction pace, higher demands are placed on measurement efficiency and data reliability.

[0003] Currently, the commonly used technical solution in leveling surveying is to fix the leveling rod to a regular tripod using clamps or straps. Surveyors repeatedly adjust the length and angle of the tripod legs and continuously observe the position of the bubble in the circular level on the leveling rod until the bubble is centered, ensuring the leveling rod is approximately plumb. However, this solution has the following problems: leveling the tripod platform and calibrating the leveling rod are two independent steps. Even if the platform is level, the leveling rod may still be tilted due to installation errors of the rigid clamps, the bending of the leveling rod itself, or the clearance between the clamps and the rod. This requires repeated manual observation of the bubble and multiple adjustments, making the operation cumbersome and time-consuming. Furthermore, leveling rods from different manufacturers have slight differences in thickness, making it difficult for existing rigid clamps to adapt to different thicknesses. Too tight a clamp can scratch the rod surface, while too loose a clamp results in instability, leading to poor versatility. Summary of the Invention

[0004] In order to solve the problems of existing technology where the leveling rod still needs to be manually calibrated repeatedly after the tripod is leveled, which is cumbersome and inefficient, and existing clamps are difficult to adaptively clamp leveling rods of different specifications, are easy to scratch the rod surface and have poor versatility, this application provides a leveling rod erecting device.

[0005] The leveling rod erection device provided in this application adopts the following technical solution: A leveling rod erection device includes a support frame and a fixing assembly; the support frame includes a mounting platform and a plurality of support legs detachably connected to the underside of the mounting platform; The fixing component includes an elastic fixing member and a spherical cavity disposed on the mounting platform. The elastic fixing member is accommodated in the spherical cavity and mates with the spherical surface of the spherical cavity. The elastic fixing member is used to clamp and fix the leveling rod.

[0006] By adopting the above technical solution, the support frame, as an integral support structure, has multiple detachable support legs connected to its installation platform, facilitating quick deployment, storage, and replacement. The elastic fixing component in the fixing assembly is housed within a spherical cavity and mates with the spherical surface of the cavity, forming a multi-directional swinging connection structure. When the elastic fixing component clamps the leveling rod, the leveling rod, under its own weight, will cause the elastic fixing component to swing freely within the spherical cavity until it reaches a vertical state. This process eliminates the need for repeated manual adjustments, achieving automatic verticality of the leveling rod and improving measurement efficiency and accuracy. At the same time, the elastic material of the elastic fixing component can adapt to leveling rods of different diameters, providing a stable clamping without damaging the rod surface. The entire device has a simple structure, is easy to operate, and can be set up by a single person.

[0007] In one specific implementation, the outer diameter of the elastic fastener is smaller than the inner diameter of the spherical cavity.

[0008] By adopting the above technical solution, the outer diameter of the elastic fixing member is smaller than the inner diameter of the spherical cavity, and there is a gap between the two. This gap provides space for the elastic fixing member to swing freely in the spherical cavity, avoids rotational jamming caused by excessive tightness, and ensures that the leveling rod can respond sensitively to the action of gravity and automatically adjust to a vertical state, further ensuring the accuracy of the measurement readings.

[0009] In one specific implementation, the elastic fastener has a clamping channel for accommodating the leveling rod, and the inner wall of the clamping channel is in contact with the leveling rod.

[0010] By adopting the above technical solution, since the elastic fastener is made of elastic material, the inner wall of the clamping channel can fit tightly with the front and back of the leveling rod. The material's own elastic deformation generates a uniform clamping force. This design not only ensures the stability of the clamping but also avoids scratches on the rod surface that may be caused by rigid clamping. At the same time, it can adapt to leveling rods of different thicknesses and shapes, making it highly versatile.

[0011] In one specific implementation, the bottom of the spherical cavity is provided with a through hole through which the leveling rod passes.

[0012] By adopting the above technical solution, the bottom of the spherical cavity is provided with a through hole for the leveling rod to pass through. After the leveling rod is clamped by the elastic fixing member, its lower end can pass through the through hole and extend downward so as to contact the ground or rod pad for measurement. The existence of the through hole allows the leveling rod to pass through the installation platform, avoiding the situation where the platform is blocked and the field measurement cannot be carried out, thus ensuring the normal use function of the device.

[0013] In one specific implementation, the elastic fastener is provided with a rotation limiting shaft, and the spherical cavity is provided with a limiting groove that cooperates with the rotation limiting shaft.

[0014] By adopting the above technical solution, the elastic fixing component is provided with a rotation limiting shaft, and the spherical cavity is provided with a limiting groove that matches it. The matching structure of the rotation limiting shaft and the limiting groove not only limits the rotation range of the elastic fixing component to prevent it from excessively deflecting or falling out, but also provides a stable rotation axis, making the leveling rod more stable and controllable during the swinging process, avoiding the impact of excessive shaking on the measurement accuracy. This structure realizes the limiting rotation matching and enhances the stability and reliability of the device.

[0015] In one specific implementation, a horizontal support is detachably connected between two adjacent support legs, and both the support legs and the horizontal support are telescopic structures.

[0016] By adopting the above technical solution, the horizontal support is connected and fixed after the support feet are unfolded, forming a triangular stable structure, which enhances the overall rigidity and anti-overturning ability of the support frame. The telescopic structure allows the length of the support feet and horizontal support to be flexibly adjusted according to the terrain height and measurement needs, adapting to different slopes and ground conditions. At the same time, it is easy to store and carry, and the detachable connection facilitates the quick assembly and disassembly of the device.

[0017] In one specific implementation, a plurality of pulleys are also included, which are correspondingly disposed with the support foot and detachably connected to the underside of the support foot.

[0018] By adopting the above technical solution, the introduction of pulleys allows the entire device to be moved at any time during the measurement and layout process without having to repeatedly remove and re-erect the leveling rod, which greatly improves the efficiency of continuous measurement operations. The detachable connection allows the pulleys to be removed when not in use, and the support feet to directly touch the ground, increasing stability, or different types of pulleys to be replaced according to the terrain.

[0019] In one specific implementation, a hook is also included, which is disposed on the support frame and is used to install a counterweight.

[0020] By adopting the above technical solution, in situations with strong winds or uneven terrain, counterweights (such as sandbags, metal blocks, etc.) can be hung on the support frame to lower the center of gravity of the entire device, increase the anti-overturning ability, and further improve the stability of the leveling rod during the measurement process. The detachable design allows the counterweights to be selected and used according to actual needs without affecting the easy transport under normal circumstances.

[0021] In one specific implementation, the mounting platform is provided with horizontal bubbles.

[0022] By adopting the above technical solution, operators can determine whether the installation platform is level by observing the level bubble when setting up the device, and adjust the length or angle of each support leg accordingly to quickly level the platform. The level bubble provides an intuitive level reference, reduces the difficulty of leveling, and ensures the accuracy of the measurement benchmark.

[0023] In one specific implementation scheme, the mounting platform is further provided with a laser rangefinder and a distance display screen, the distance display screen being electrically connected to the laser rangefinder.

[0024] By adopting the above technical solution, the installation platform is equipped with a laser rangefinder and a distance display screen. The distance display screen is electrically connected to the laser rangefinder. The laser rangefinder can measure the distance between the device and the level or measuring point in real time and display the data directly on the distance display screen. Operators do not need to carry additional distance measuring tools. They can obtain distance information while leveling, realize synchronous calibration of leveling and distance measurement, and greatly improve measurement efficiency and data real-time performance.

[0025] In one specific implementation, an angle sensor and an electromagnetic locking element are also included, the angle sensor being used to detect the swing angle of the resilient fastener; the electromagnetic locking element is configured to selectively lock the relative rotation of the resilient fastener and the spherical cavity in response to the detection signal from the angle sensor.

[0026] By adopting the above technical solution, the angle sensor monitors the swing posture of the elastic fixing member in real time. When the change in the swing angle within a preset time is less than the set threshold, it is determined that the leveling rod is in a stable vertical state. Then, the electromagnetic locking device is automatically triggered to fix the elastic fixing member relative to the spherical cavity, preventing the rod from shaking due to external forces such as wind or contact during subsequent measurements. After the measurement is completed, it can be unlocked manually or automatically to allow the elastic fixing member to swing freely for relocation.

[0027] In summary, the beneficial technical effects of this application are as follows: By coordinating the support frame and the fixing components, and utilizing the spherical fit structure of the elastic fixing element and the spherical cavity, the leveling rod clamped in the elastic fixing element can automatically swing freely in the vertical direction under its own weight, quickly achieving a vertical state without repeated manual calibration, thereby significantly improving measurement efficiency and reading accuracy. At the same time, the elastic fixing element, due to its material elasticity, can adaptively clamp leveling rods of different diameters or thicknesses, ensuring stable clamping without damaging the rod surface. Combined with the detachable design of the support feet, the entire device has a simple structure and is easy to operate. A single person can complete the setup and storage, effectively solving the technical problems of difficulty in maintaining verticality, cumbersome operation, and low efficiency in the traditional leveling rod setup process. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the leveling rod erection device according to an embodiment of this application.

[0029] Figure 2 It is a structural diagram showing a horizontal bubble, a laser rangefinder, and a distance display screen.

[0030] Figure 3 This is a schematic diagram showing the structure of the clamping channel.

[0031] Figure 4 This is a structural diagram showing the rotation limit shaft and the limit groove.

[0032] Figure 5 This is a structural diagram showing the electromagnetic locking device and the angle sensor.

[0033] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Mounting platform; 111. Sliding hole; 12. Support foot; 13. Horizontal support; 2. Fixing component; 21. Elastic fastener; 211. Clamping channel; 212. Rotation limit shaft; 213. Locking hole; 22. Spherical cavity; 221. Limiting groove; 3. Horizontal bubble; 4. Laser rangefinder; 5. Distance display screen; 6. Pulley; 7. Hook; 8. Level; 9. Electromagnetic locking component; 91. Electromagnet; 92. Locking pin; 921. Retaining ring; 93. Return spring; 10. Angle sensor. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a leveling rod erection device, which is used to assist in leveling rod erection during leveling rod measurement. It can automatically adjust to a vertical state using the weight of the leveling rod itself, thereby improving measurement efficiency and accuracy.

[0036] Reference Figure 1-3 The leveling rod mounting device of this application includes a support frame 1 and a fixing component 2. The support frame 1 is used to provide a stable support base, and the fixing component 2 is used to swing the leveling rod 8 onto the support frame 1.

[0037] Specifically, the support frame 1 includes an installation platform 11 and multiple support legs 12 connected to the bottom of the installation platform 11. The installation platform 11 serves as the support base for the entire device. Its upper surface is used to install various functional components, and its lower surface is used to connect the support legs 12. The support legs 12 are connected to the installation platform 11 in a detachable manner, such as by quick-release buckles, threaded connections, or pin connections, so that the device can be quickly disassembled and stored when not in use and quickly assembled when in use.

[0038] The fixing component 2 includes an elastic fixing member 21 and a spherical cavity 22 disposed on the mounting platform 11. The spherical cavity 22 is fixedly disposed at the center of the upper surface of the mounting platform 11, forming a concave spherical receiving space. The elastic fixing member 21 is used to directly clamp the leveling rod 8, and its entire body is housed inside the spherical cavity 22. The outer surface of the elastic fixing member 21 and the inner wall of the spherical cavity 22 form a spherical fit relationship, that is, at least a part of the surface of the elastic fixing member 21 is a spherical surface, which is in contact with the spherical inner surface of the spherical cavity 22 and can slide relative to each other. Due to the use of spherical fit, the elastic fixing member 21 can swing freely in multiple directions within the spherical cavity 22, thereby causing the leveling rod 8 it clamps to automatically adjust to a vertical state under the action of gravity.

[0039] In this embodiment, the fixing component 2 serves as the core component connecting the support frame 1 and the leveling rod 8, and its specific structure is as follows.

[0040] A spherical cavity 22 is provided on the mounting platform 11. Its shape is a hemispherical or spherical crown-shaped groove with an upward opening. The inner wall of the spherical cavity 22 is a smooth spherical surface with a low surface roughness to reduce the frictional resistance between it and the elastic fixing member 21. A through hole is provided at the bottom of the spherical cavity 22. The through hole penetrates the mounting platform 11 and its diameter is larger than the cross-sectional dimension of the leveling rod 8, so that the leveling rod 8 can pass through the mounting platform 11 from the bottom of the spherical cavity 22 to contact the ground or the rod pad for measurement.

[0041] The elastic fastener 21 is integrally molded from highly elastic silicone material and has a spherical or hemispherical structure. The outer diameter of the elastic fastener 21 is smaller than the inner diameter of the spherical cavity 22, and the difference between the two is, for example, 0.5-3mm. This creates a uniform gap between the elastic fastener 21 and the spherical cavity 22, which provides room for the free swing of the elastic fastener 21 and avoids rotational jamming caused by excessive tightness.

[0042] The elastic fastener 21 has a clamping channel 211 inside. The clamping channel 211 extends along the axial direction of the elastic fastener 21 and is used to accommodate the leveling rod 8. The cross-sectional shape of the clamping channel 211 matches the cross-sectional shape of the leveling rod 8. For a leveling rod 8 with a rectangular cross-section, the clamping channel 211 is rectangular, and for a leveling rod 8 with a circular cross-section, the clamping channel 211 is circular.

[0043] The inner wall of the clamping channel 211 is slightly smaller than the corresponding size of the leveling rod 8 in its natural state (e.g., 0.5-3mm smaller in width or diameter). When the leveling rod 8 is inserted, the elastic fixing member 21 undergoes elastic deformation, and the inner wall of the clamping channel 211 fits tightly against the front and back of the leveling rod 8, generating a uniform clamping force. This elastic clamping method can adapt to leveling rods 8 from different manufacturers and of different specifications, and can also avoid scratches or deformation of the rod surface that may be caused by rigid clamping.

[0044] In other embodiments, the inner wall of the clamping channel 211 of the elastic fastener 21 may be provided with multiple annular protrusions or threaded structures to increase the friction between it and the leveling rod 8 and prevent the leveling rod 8 from accidentally slipping off during swinging. In other embodiments, the elastic fastener 21 may also adopt a dual-hardness structure, with a harder silicone outer layer to maintain the spherical shape and dimensional stability, and a softer silicone inner layer to enhance clamping adaptability and protective performance.

[0045] In this embodiment, the support frame 1 has the following further specific structure.

[0046] The installation platform 11 adopts a fixed disc structure, which is circular and flat in shape. The central area of ​​the top is hollowed out to reduce the overall weight and facilitate observation and installation. The installation platform 11 is made of high-strength lightweight materials, such as aluminum alloy or engineering plastics, and the surface is anodized or powder-coated, which has good corrosion resistance and wear resistance.

[0047] The mounting platform 11 is equipped with a level calibration component, including a level bubble 3, a laser rangefinder 4, and a distance display screen 5.

[0048] A horizontal bubble 3 is embedded in the top edge of the mounting platform 11. It is filled with liquid and contains a bubble. When the mounting platform 11 is horizontal, the bubble is located in the center of the horizontal bubble 3. When the mounting platform 11 is tilted, the bubble shifts to the higher side. The operator can judge whether the mounting platform 11 is horizontal by observing the position of the bubble and adjust the length of each support leg 12 accordingly until the bubble is centered.

[0049] The laser rangefinder 4 is installed on the mounting platform 11 with its laser emission direction facing the position of the level. The laser rangefinder 4 can be equipped with a rotatable and liftable ball joint, so that the laser emission angle can be flexibly adjusted according to the actual measurement needs. For example, on sloping terrain, the laser beam direction can be adjusted by the ball joint to align it with the line of sight of the level.

[0050] The distance display screen 5 is embedded in the top surface of the mounting platform 11 and is electrically connected to the laser rangefinder 4 via wires or wireless means. The laser rangefinder 4 measures the distance between the device and the level in real time and transmits the measurement data to the distance display screen 5 for digital display. Operators do not need to carry additional distance measuring tools and can obtain distance information while leveling, thus achieving synchronous calibration of leveling and distance measurement.

[0051] In this embodiment, there are three support legs 12. The three support legs 12 are evenly distributed around the circumference of the mounting platform 11 to form a stable three-point support structure. Each support leg 12 is provided with a quick-release buckle at its upper end. The quick-release buckle cooperates with the buckle seat preset on the lower surface of the mounting platform 11, which can quickly complete the installation or removal of a single support leg 12. This quick-release structure allows operators to complete the installation and removal of the support legs 12 without using any tools, which greatly improves the efficiency of on-site operations.

[0052] The support leg 12 is a telescopic structure. In this embodiment, the support leg 12 can adopt a multi-section sleeve telescopic structure, which is formed by connecting an outer tube and an inner tube. A locking element (such as a locking bolt) is provided between adjacent sleeves to lock the length after telescopic extension. The telescopic length of the support leg 12 can be flexibly adjusted according to the elevation of the measured terrain and the height of the operator, with a wide range of adaptability. The material of the support leg 12 is preferably corrosion-resistant stainless steel or aerospace-grade aluminum alloy, which ensures both structural strength and lightweight.

[0053] To further enhance the stability of the support frame 1, a horizontal support 13 is connected between two adjacent support legs 12. The two ends of the horizontal support 13 are connected to the lower middle part of the two support legs 12 respectively, and the horizontal support 13 also adopts a telescopic structure.

[0054] Specifically, the horizontal support 13 includes an outer rod and an inner rod. The outer rod is sleeved outside the inner rod. One end of the outer rod is hinged to a support leg 12, and one end of the inner rod is hinged to an adjacent support leg 12. The outer rod is provided with a locking knob for locking the position of the inner rod after adjusting the length. When the support leg 12 is extended into place, the horizontal support 13 is extended and locked, forming a triangular stable structure together with the support leg 12, which significantly improves the device's ability to resist lateral forces and overturning.

[0055] The horizontal support 13 and the support foot 12 are also detachably connected. In this embodiment, the two ends of the horizontal support 13 can be connected to the threaded holes on the support foot 12 by screws. Specifically, the end of the horizontal support 13 is provided with a connecting ear plate, and a through hole is opened on the connecting ear plate. The corresponding position of the lower side wall of the support foot 12 is provided with a threaded hole. After the hand screw passes through the through hole, it engages with the threaded hole to fix the end of the horizontal support 13 to the support foot 12. The head of the hand screw is provided with a butterfly handle, which can be tightened or loosened without tools, realizing tool-free quick assembly and disassembly, and facilitating disassembly and storage.

[0056] To facilitate convenient movement of the device during the measurement process, this embodiment of the application also provides a moving component at the bottom of the support foot 12. Specifically, each support foot 12 is detachably connected to a pulley 6, and the pulley 6 is arranged in a one-to-one correspondence with the support foot 12, that is, the three support feet 12 correspond to the three pulleys 6, forming a three-wheel support structure.

[0057] In this embodiment, the pulley 6 is preferably a universal wheel or a double-bearing pulley, which has a 360-degree rotation function, making it easy for the device to be pushed in any direction. The pulley 6 is also equipped with a brake, such as a foot brake or a manual paddle brake, which can lock the pulley 6 during measurement to prevent the device from sliding accidentally.

[0058] The pulley 6 is detachably connected to the support foot 12. In this embodiment, the bottom of the support foot 12 is provided with a threaded hole, and the upper end of the pulley 6 is provided with a screw that mates with the threaded hole. The pulley 6 is fixedly connected to the support foot 12 by screwing. The operator can quickly install or remove the pulley 6 as needed. The pulley 6 can be installed when frequent movement measurement is required, and the pulley 6 can be removed or the brake can be locked when long-term static observation is required.

[0059] The support frame 1 is also equipped with hooks 7 for suspending counterweights. In this embodiment, the hooks 7 are fixed near the connection position between the support foot 12 and the horizontal support 13, that is, the lower middle part of the support foot 12 and the side of the end of the horizontal support 13. The number of hooks 7 can be one or more, preferably one hook 7 is set on each support foot 12 to form a three-point suspension to maintain the balance of the center of gravity. The counterweight can be an object with appropriate weight, such as a sandbag, metal block, or water bag. The counterweight is detachably installed on the support frame 1 through the hooks 7. In the case of strong winds or uneven terrain, suspending the counterweight can lower the center of gravity of the entire device, increase the anti-overturning ability, and further improve the stability of the leveling rod 8 during the measurement process. In normal weather and on flat ground, the counterweight can be left unsuspended to keep it lightweight.

[0060] The following describes the overall assembly and usage process of the embodiments of this application in detail, based on the above structural description.

[0061] Assembly of support frame 1: Install the three support legs 12 under the mounting platform 11 using quick-release buckles, extend them outward to a suitable angle, connect the two ends of the horizontal support 13 to the adjacent support legs 12 respectively, adjust the length of the horizontal support 13 according to the extension angle of the support legs 12, and lock it in place. Adjust the telescopic length of the support legs 12 according to the terrain requirements, and fix the pole height with locking parts. If it is necessary to move the measurement, install the pulley 6 at the bottom of the support legs 12; if it is necessary to perform static and stable measurement, you can choose not to install the pulley 6 or install it and lock the brake.

[0062] Leveling rod 8 clamping: Insert the leveling rod 8 into the clamping channel 211 of the elastic fastener 21. The elastic fastener 21 itself is used to naturally clamp the leveling rod 8 in the lower middle area. Since the elastic fastener 21 is made of highly elastic silicone, its clamping force is uniform and does not damage the rod surface. At the same time, it can adapt to leveling rods of different diameters or thicknesses.

[0063] Leveling rod 8 installation: Place the elastic fixing member 21, which has been clamped and holds the leveling rod 8, into the spherical cavity 22. At this time, the spherical surface of the elastic fixing member 21 and the inner wall of the spherical cavity 22 form a spherical fit, and there is a gap between them. The elastic fixing member 21 can swing freely in the spherical cavity 22.

[0064] Leveling and distance measurement: Observe the horizontal bubble 3, and finely adjust the extension length or angle of each support leg 12 according to the position of the bubble until the horizontal bubble 3 is centered. At this time, the installation platform 11 is in a horizontal state. Turn on the laser rangefinder 4, adjust the laser emission angle through the ball joint to align it with the level, and read the data on the distance display screen 5 to confirm that the distance between the device and the level meets the observation requirements.

[0065] Measurement operation: During the measurement process, the leveling rod 8, under its own weight, swings freely in the spherical cavity 22 through the elastic fixing part 21, and automatically adjusts to a vertical state. The operator can take the leveling instrument reading without repeatedly manually supporting or adjusting the rod.

[0066] Moving and Propulsion: When it is necessary to move to the next measuring point, release the brake of pulley 6 and directly push the device to the new position.

[0067] Disassembly and storage: After the measurement is completed, remove the elastic fastener 21 from the spherical cavity 22, remove the leveling rod 8 from the clamping channel 211, disassemble the installation platform 11, horizontal support 13, and support foot 12, and put each component into the storage box.

[0068] In summary, the leveling rod device of this application, through the spherical fit and gap design of the elastic fixing member 21 and the spherical cavity 22, allows the leveling rod 8 to swing freely in multiple directions and automatically adjust to a vertical state using its own weight, eliminating the need for repeated manual adjustment and improving measurement accuracy and efficiency. The elastic fixing member 21 is made of highly elastic silicone material and has a clamping channel 211, which can elastically fit the front and back of the leveling rod 8 of different specifications, clamping it firmly without damaging the rod surface, and has strong versatility. The integrated bubble level 3, laser rangefinder 4, and distance display screen 5 enable rapid leveling and real-time distance measurement and synchronous calibration, further improving the ease of operation and data reliability. The support frame 1 uses retractable and detachable support feet 12 and horizontal support 13, with quick-release buckles and hand-tightening screws, allowing for quick assembly and disassembly without tools. The bottom pulley 6 enables flexible movement during the measurement process, avoiding repeated rod disassembly. The hook 7 and counterweight can lower the center of gravity and enhance the anti-tipping ability.

[0069] The entire device is compact and lightweight (the weight of the whole machine is controlled within 3.2kg), quick to assemble and disassemble, and can be carried and set up by a single person. It effectively solves the problems of low setting efficiency, difficulty in maintaining plumbness, and inconvenience in moving traditional leveling rods, and can be widely used in various leveling measurement scenarios.

[0070] Example 2 Reference Figure 4 The difference between this embodiment and Embodiment 1 is that a limiting rotation structure is also provided between the elastic fixing member 21 and the spherical cavity 22. Specifically, the elastic fixing member 21 has outwardly protruding rotation limiting shafts 212 symmetrically arranged on both sides. The rotation limiting shafts 212 can be spherical short shafts or cylindrical short shafts, which can be integrally formed with the main body of the elastic fixing member 21. Correspondingly, the inner wall of the spherical cavity 22 is provided with a limiting groove 221 that cooperates with the rotation limiting shaft 212. The limiting groove 221 can be an arc-shaped or straight groove, and its width is slightly larger than the diameter of the rotation limiting shaft 212. The length limits the sliding range of the rotation limiting shaft 212.

[0071] When the elastic fastener 21 is inserted into the spherical cavity 22, the rotating limiting shaft 212 is inserted into the limiting groove 221. During the swinging process of the elastic fastener 21, the rotating limiting shaft 212 slides or rotates in the limiting groove 221. The two ends of the limiting groove 221 block the rotating limiting shaft 212, thereby limiting the maximum swing angle of the elastic fastener 21 and preventing it from excessively deflecting or accidentally coming out of the spherical cavity 22. At the same time, the cooperation between the rotating limiting shaft 212 and the limiting groove 221 provides a stable rotation axis for the elastic fastener 21, making the swinging motion more stable and controllable, and avoiding the shaking that may occur with the free spherical surface.

[0072] As a simplified solution, in measurement scenarios where strict limits are not required, the rotation limit shaft 212 and the limit groove 221 can be omitted, and the swing can be achieved solely by spherical fit and clearance. In this case, the swing range of the elastic fixing member 21 is determined by the opening edge of the spherical cavity 22. This simplified solution has a simpler structure and lower cost.

[0073] This scheme effectively constrains the swing range of the elastic fixing member 21 by setting rotation limiting shafts 212 on both sides of the elastic fixing member 21 and opening limiting grooves 221 in the inner wall of the spherical cavity 22 to cooperate with it, preventing excessive deflection or disengagement. At the same time, it provides a stable rotation axis for swing, making the vertical adjustment process of the leveling rod 8 more stable and controllable, avoiding the shaking that may be caused by the free spherical surface, thereby further improving the stability of the measurement reading and the reliability of the device. The simplified scheme retains the flexibility of swinging by relying solely on the spherical surface and gap, and can choose whether to add a limiting structure according to the actual measurement needs, thus balancing cost and performance.

[0074] Example 3 Reference Figure 5 The difference between this embodiment and Embodiment 1 is that this embodiment also includes an angle sensor 10 and an electromagnetic locking component 9, which are used to fix the elastic fixing component 21 and the spherical cavity 22 relative to each other during the measurement process to ensure the stability of the reading.

[0075] In one specific implementation, the angle sensor 10 can be a MEMS accelerometer or a capacitive tilt sensor. In this embodiment, the angle sensor 10 is mounted on the top of the outer surface of the elastic fastener 21 and swings together with the elastic fastener 21 to detect the swing angle of the elastic fastener 21 in real time. Alternatively, the angle sensor 10 can also be mounted on the mounting platform 11 to detect the attitude change of the elastic fastener 21 in a non-contact manner (e.g., photoelectric or magnetic induction).

[0076] The electromagnetic locking component 9 includes an electromagnet 91, a locking pin 92, and a return spring 93. The elastic fixing component 21 is provided with a locking hole 213. The mounting platform 11 is provided with a sliding hole 111. One end of the sliding hole 111 is connected to the spherical cavity 22, and the other end is closed or provided with a fixed end face. The electromagnet 91 is fixedly installed at the rear end of the sliding hole 111 (i.e., the end away from the spherical cavity 22), and the iron core of the electromagnet 91 faces the rear end face of the locking pin 92; the locking pin 92 is slidably disposed in the sliding hole 111, the front end of the locking pin 92 faces the locking hole 213 on the elastic fixing member 21, the rear end face of the locking pin 92 is opposite to the iron core of the electromagnet 91, and the front part of the locking pin 92 is provided with a radially protruding retaining ring 921.

[0077] The return spring 93 is a compression spring, which is sleeved on the front of the locking pin 92 and located between the retaining ring 921 and the front end face of the sliding hole 111 (i.e. the end face near the spherical cavity 22). One end of the return spring 93 abuts against the retaining ring 921, and the other end abuts against the front end face of the sliding hole 111 (or a washer fixed to that end face).

[0078] In addition, embodiments of this application also include a power module and a controller. The power module is used to power the angle sensor 10, the electromagnet 91 and the controller. It can be a built-in dry battery, a rechargeable lithium battery or an external power interface. The controller is electrically connected to the angle sensor 10 and the electromagnet 91 respectively, and is used to receive the detection signal of the angle sensor 10 and control the power supply of the electromagnet 91.

[0079] Initial state (electromagnet 91 de-energized): Locking pin 92 is in the retracted position, the front end of locking pin 92 has not entered the spherical cavity 22, the elastic fixing member 21 can swing freely, and at this time the return spring 93 is at its natural length (or slightly pre-compressed) and is not subject to additional pressure.

[0080] When the angle sensor 10 detects that the change in the swing angle of the elastic fixing member 21 within a preset time (e.g., 2 seconds) is less than a set threshold (e.g., 0.05°), the controller determines that the level 8 has stabilized in a vertical state and controls the electromagnet 91 to be energized. After the electromagnet 91 is energized, its iron core generates magnetic force, pushing the locking pin 92 forward (towards the spherical cavity 22). The locking pin 92 moves forward against the resistance of the return spring 93, and its front end extends out of the sliding hole 111 and passes through the side wall of the spherical cavity 22, inserting into the locking hole 213 on the elastic fixing member 21, fixing the elastic fixing member 21 and the spherical cavity 22 relative to each other. During this process, the retaining ring 921 on the locking pin 92 moves forward with the locking pin 92 and compresses the return spring 93, so that the return spring 93 stores elastic potential energy.

[0081] After the measurement is completed, the operator manually presses the button to de-energize the electromagnet 91. The magnetic field of the electromagnet 91 disappears, the thrust on the locking pin 92 disappears, the compressed return spring 93 releases its elastic potential energy, and pushes the retaining ring 921 to move away from the spherical cavity 22 (i.e., back), which drives the locking pin 92 to exit the locking hole 213 and retract to the initial position. The elastic fixing part 21 returns to its free swing state so that the device can automatically plumb again when it moves to the next measuring point.

[0082] This embodiment of the application adds an angle sensor 10 to monitor the swing posture of the elastic fixing member 21 in real time. After detecting that the leveling rod 8 is stable and plumb, the controller automatically triggers the electromagnet 91 to be energized, driving the locking pin 92 to insert into the locking hole 213. At the same time, the compression return spring 93 stores potential energy, realizing the reliable locking of the elastic fixing member 21 and the spherical cavity 22. This effectively avoids the shaking of the leveling rod 8 caused by external forces such as wind and touch during the measurement process. After the measurement is completed, the electromagnet 91 is de-energized, and the compression return spring 93 releases potential energy to automatically push the locking pin 92 back, restoring the free swing state for relocation. This scheme realizes the automatic sensing, automatic locking and automatic unlocking of the leveling rod 8's posture without manual intervention, significantly reducing human operation errors, improving the stability and reliability of measurement data, and improving the automation level and operation efficiency of the device.

[0083] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A leveling rod erection device, characterized in that: It includes a support frame and a fixing assembly; the support frame includes a mounting platform and a plurality of support legs detachably connected to the underside of the mounting platform; The fixing component includes an elastic fixing member and a spherical cavity disposed on the mounting platform. The elastic fixing member is accommodated in the spherical cavity and mates with the spherical surface of the spherical cavity. The elastic fixing member is used to clamp and fix the leveling rod.

2. The leveling rod erection device according to claim 1, characterized in that: The outer diameter of the elastic fastener is smaller than the inner diameter of the spherical cavity.

3. The leveling rod erection device according to claim 1, characterized in that: The elastic fastener has a clamping channel for accommodating the leveling rod, and the inner wall of the clamping channel is in contact with the leveling rod.

4. The leveling rod erection device according to claim 1, characterized in that: The bottom of the spherical cavity is provided with a through hole for the leveling rod to pass through.

5. The leveling rod erection device according to claim 1, characterized in that: The elastic fastener is provided with a rotation limiting shaft, and the spherical cavity is provided with a limiting groove that cooperates with the rotation limiting shaft.

6. The leveling rod erection device according to claim 1, characterized in that: A horizontal support is detachably connected between two adjacent support legs, and both the support legs and the horizontal support are telescopic structures.

7. The leveling rod erection device according to claim 6, characterized in that: It also includes multiple pulleys, which are correspondingly arranged with the support feet and detachably connected to the underside of the support feet.

8. The leveling rod erection device according to claim 1, characterized in that: It also includes hooks, which are disposed on the support frame and are used to install counterweights.

9. The leveling rod erection device according to claim 1, characterized in that: The installation platform is equipped with horizontal air bubbles; The mounting platform is also equipped with a laser rangefinder and a distance display screen, and the distance display screen is electrically connected to the laser rangefinder.

10. The leveling rod erection device according to claim 1, characterized in that: It also includes an angle sensor and an electromagnetic locking element, the angle sensor being used to detect the swing angle of the elastic fastener; the electromagnetic locking element being configured to selectively lock the relative rotation of the elastic fastener and the spherical cavity in response to the detection signal of the angle sensor.

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