A high-stability surveying instrument leveling device

Abstract

The utility model discloses a kind of high-stability surveying and mapping instrument leveling device, it is related to surveying and mapping instrument technical field, including leveling plate, the top of leveling plate is equipped with level tube, the outside triangle of leveling plate is provided with positioning peg through fixed lobe, and the outer wall of positioning peg is provided with soil trap, the inside triangle of leveling plate is provided with clamping arc block, and the inside of leveling plate is also provided with positioning assembly.This kind of high-stability surveying and mapping instrument leveling device is movably connected with fixed lobe by positioning peg, so that leveling plate can be flexibly rotated around positioning peg by large angle, and then make this device more suitable for complex terrain use;By the cooperation of clamping arc block, positioning assembly, limit plate and spring, it can be conveniently placed into the foot nail of surveying and mapping instrument tripod, and tightly clamped between clamping arc block and the inside triangle of leveling plate, so as to ensure the high stability of surveying.

Description

Technical Field

[0001] This utility model relates to the field of surveying instrument technology, specifically a high-stability surveying instrument leveling device. Background Technology

[0002] Surveying instruments refer to instruments and devices designed and manufactured for surveying operations, such as data acquisition, processing, and output. They are widely used in fields such as engineering surveying, geological exploration, and topographic mapping. Leveling is a crucial step before using surveying instruments. Currently, most surveying instrument leveling devices on the market use a tripod with a screw leveling structure. The instrument's level is calibrated by adjusting the length of the tripod legs or rotating the leveling screw.

[0003] However, when the slope of the mounting surface is large or the support surface is rugged, the built-in leveling mechanism is cumbersome. To overcome the above defects, the prior art (Chinese patent application number 202421565505.8, application date 2024-07-04) discloses a rapid leveling device for surveying instruments. By setting three mounting sleeves, and the positioning pins inside the three mounting sleeves can move freely, the limiting pads set on the outside of the mounting sleeves can be used to control and limit the adjustment slots at different positions on the outside of the corresponding positioning pins. Therefore, the support height of the positioning pins at different positions can be adjusted to quickly level the surveying instrument on a flat surface.

[0004] However, since the positioning pins can only move vertically up and down along the mounting sleeve, it is difficult to flexibly level the placement pad during the pin insertion process. Furthermore, relying solely on the foot pin collar to engage and fix the tripod feet is neither convenient for inserting the feet nor can it guarantee a stable engagement of the feet, thus compromising the stability of the surveying device during use. To address these issues, an innovative design based on the existing equipment is urgently needed. Therefore, we have proposed a high-stability surveying instrument leveling device that can effectively solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a high-stability leveling device for surveying instruments, in order to solve the problems mentioned in the background art, which are that because the positioning pins can only move vertically up and down along the mounting sleeve, it is difficult to flexibly level the placement pad during the process of driving in the positioning pins. Furthermore, relying solely on the foot pin collar to engage and fix the foot pins of the tripod is neither convenient for inserting the foot pins nor can it guarantee a stable engagement of the foot pins, thus failing to guarantee the stability of the surveying device during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability surveying instrument leveling device, including a leveling plate, the leveling plate having a hollow triangular plate structure, and positioning pins provided at the outer triangular part of the plate, a level tube also being installed on the top of the leveling plate, a fixing protrusion being formed at the outer triangular part of the leveling plate, and the positioning pins being movably disposed on the inner side of the fixing protrusion.

[0007] The outer wall of the positioning pin is provided with axially distributed soil-trapping grooves, and the soil-trapping grooves are located below the connecting ball block.

[0008] The inner triangle of the adjustment plate is provided with locking arc blocks, and the three locking arc blocks are used to clamp the foot nails at the bottom of the surveying instrument tripod between it and the inner triangle of the adjustment plate. The inner side of the adjustment plate is also provided with a positioning component for positioning the three locking arc blocks to make them lock securely.

[0009] Preferably, the outer wall of the positioning pin is formed with a connecting ball block, and the inner side of the fixing protrusion is provided with a connecting ball groove that matches the connecting ball block, and the connecting ball block is movably disposed inside the connecting ball groove.

[0010] Preferably, the positioning component includes a central frame fixedly connected to the inner wall of the adjusting plate. The top of the central frame is integrally formed with a threaded tube, and the inner side of the threaded tube is threadedly connected to a limiting threaded block. The outer end of the snap-fit ​​arc block is fixedly provided with a sliding rod, and the three sliding rods slide through to the inner side of the threaded tube and abut against the outer wall of the limiting threaded block along the axial direction. The bottom of the limiting threaded block has a downwardly narrowing frustum structure.

[0011] Preferably, a knob is fixedly provided at the top of the limiting threaded block, and the outer surface of the knob is formed with anti-slip protrusions.

[0012] Preferably, a guide plate is fixedly provided on the outer side of the sliding rod, and three sets of sliding grooves corresponding to and adapted to the three guide plates are opened on the inner side wall of the adjusting plate. A spring is connected between the end of the guide plate and the inner wall of the sliding groove and the outer wall of the threaded tube.

[0013] Preferably, guide rods are fixedly connected between the inner walls of the chute, and the two sides of the guide plate are slidably disposed on the outer side of the guide rods.

[0014] Preferably, a protective pad is fixedly bonded to the inner sidewall of the snap-fit ​​arc block, and the protective pad is made of flexible rubber.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This high-stability surveying instrument leveling device, through the movable connection between the positioning pin and the fixed convex plate, allows the leveling plate to rotate flexibly around the positioning pin at a large angle, thereby making the device more suitable for complex terrain; through the cooperation of the snap-fit ​​arc block, positioning component, limit plate and spring, the foot nail of the surveying instrument tripod can be easily inserted and tightly snapped between the snap-fit ​​arc block and the inner triangle of the leveling plate, thereby ensuring the high stability of the surveying. The specific contents are as follows: (1) Through the cooperation of the connecting ball block and the connecting ball groove on the fixed convex plate, the positioning pin and the leveling plate can rotate flexibly at a large angle, thereby making the device adaptable to complex ground such as slopes and soft ground, solving the problem that the traditional positioning pin is difficult to flexibly level by vertical lifting.

[0016] (2) By setting axially distributed soil grooves on the outer wall of the positioning pin, the soil will automatically fill when the pin is driven in, thereby enhancing the bonding force with the soil and improving the overall fixing effect of the device and ensuring the stability of the survey.

[0017] (3) By setting up a positioning component, simply turn the knob to push the three locking arc blocks to simultaneously clamp the three feet of the tripod, making the locking firm. The spring setting makes it easy to insert the feet, thus avoiding the defect of unstable fixing of traditional foot pin collars.

[0018] (4) By setting a flexible rubber protective pad on the snap-fit ​​arc block, the friction is increased and the foot nails are protected from wear; and the cooperation of the guide plate, guide rod and spring can ensure that the sliding rod moves smoothly, so as to improve the smoothness of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the positioning pin of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the adjusting plate of this utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the adjusting plate of this utility model;

[0024] Figure 6 This is a partial structural schematic diagram of the positioning component of this utility model.

[0025] In the diagram: 1. Adjusting plate; 2. Positioning pin; 3. Level tube; 4. Fixing convex plate; 5. Connecting ball block; 6. Connecting ball groove; 7. Soil trap; 8. Snap-fit ​​arc block; 9. Center frame; 10. Sliding rod; 11. Guide plate; 12. Slide groove; 13. Guide rod; 14. Spring; 15. Threaded tube; 16. Limiting threaded block; 17. Knob; 18. Protective pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Example 1: Please refer to Figures 1-3 The present invention provides the following technical solution: a high-stability surveying instrument leveling device, including a leveling plate 1, the leveling plate 1 having a hollow triangular plate structure, and positioning pins 2 provided at the outer triangular part of the plate. A level tube 3 is also installed on the top of the leveling plate 1. A fixing protrusion 4 is formed at the outer triangular part of the leveling plate 1, and the positioning pins 2 are movably disposed on the inner side of the fixing protrusion 4.

[0028] The outer wall of the positioning pin 2 is formed with a connecting ball block 5, and the inner side of the fixing convex plate 4 is provided with a connecting ball groove 6 that is compatible with the connecting ball block 5. The connecting ball block 5 is movably set inside the connecting ball groove 6. Through the cooperative design of the connecting ball block 5 and the connecting ball groove 6, the positioning pin 2 and the fixing convex plate 4 can be flexibly rotated at a large angle, which makes this device more suitable for use in complex terrains such as slopes and soft ground.

[0029] Furthermore, the outer wall of the positioning pin 2 is provided with axially distributed soil traps 7, and the soil traps 7 are located below the connecting ball block 5.

[0030] In use, first drive one positioning pin 2 into the ground. Due to the cooperation between the connecting ball block 5 and the connecting ball groove 6, the adjusting plate 1 can be rotated freely. After it is rotated to level, the level tube 3 on the surface of the adjusting plate 1 is used to judge. Then drive the remaining two positioning pins 2 into the ground to achieve overall fixation of the adjusting plate 1. During the process of driving in the positioning pins 2, the soil will automatically fill into the soil trap 7 under the action of vibration to enhance its bonding force with the soil, which effectively improves the stability of the positioning pins 2 driven into the soil, thereby ensuring the high stability of subsequent surveying work.

[0031] Example 2: Based on Example 1, please refer to... Figure 2 as well as Figures 4-6Each inner triangle of the adjusting plate 1 is provided with a snap-fit ​​arc block 8, and the three snap-fit ​​arc blocks 8 are used to clamp the foot nails at the bottom of the surveying instrument tripod between it and the inner triangle of the adjusting plate 1. The inner side of the adjusting plate 1 is also provided with a positioning component, which is used to position the three snap-fit ​​arc blocks 8 to make them snap-fit ​​securely.

[0032] Specifically, the positioning component includes a central frame 9 fixedly connected to the inner wall of the adjusting plate 1. The top of the central frame 9 is integrally formed with a threaded tube 15, and the inner side of the threaded tube 15 is threadedly connected to a limiting threaded block 16. The outer end of the snap-fit ​​arc block 8 is fixedly provided with a sliding rod 10, and the three sliding rods 10 slide through to the inner side of the threaded tube 15 and abut against the outer wall of the limiting threaded block 16 along the axial direction. The bottom of the limiting threaded block 16 has a downwardly narrowing frustum structure.

[0033] Furthermore, a knob 17 is fixedly provided at the top of the limiting threaded block 16, and the outer surface of the knob 17 is formed with anti-slip protrusions to increase the friction when the user turns the knob 17.

[0034] Meanwhile, a guide plate 11 is fixedly installed on the outer side of the sliding rod 10, and three sets of sliding grooves 12 corresponding to and adapted to the three guide plates 11 are opened on the inner side wall of the adjusting plate 1, so as to realize the directional sliding of the guide plate 11 along the inner side of the adjusting plate 1, thereby realizing the stability of the linear sliding of the sliding rod 10. A spring 14 is connected between the end of the guide plate 11 and the inner wall of the sliding groove 12 and the outer wall of the threaded tube 15, so as to keep the locking arc block 8 away from the inner triangle of the adjusting plate 1 before the limiting threaded block 16 abuts against the sliding rod 10, so as to expand the insertion space of the tripod feet and speed up the leveling efficiency.

[0035] Furthermore, guide rods 13 are fixedly connected between the inner walls of the chute 12, and the two sides of the guide plate 11 are slidably disposed on the outer side of the guide rods 13 to further improve the stability of the directional movement of the guide plate 11.

[0036] In addition, a protective pad 18 is fixedly bonded to the inner wall of the snap-fit ​​arc block 8. The protective pad 18 is made of flexible rubber material. This material can increase the friction between the protective pad 18 and the tripod feet, thereby improving the snap-fit ​​stability. It can also provide flexible protection for the surface of the feet to prevent surface wear during clamping and use.

[0037] After leveling, the three feet at the bottom of the surveying instrument tripod are respectively placed into the inner triangle of the three locking arc blocks 8 and the adjusting plate 1. Then, the knob 17 is turned to drive the limiting threaded block 16 to rotate and move down along the threaded tube 15. During the downward movement, the inclined surface of the cone at the bottom of the limiting threaded block 16 will abut against the ends of the three sliding rods 10 and push them outward from the threaded tube 15. The guide plate 11 moves along the slide groove 12 at the same time, and the spring 14 is compressed accordingly. The three locking arc blocks 8 move outward at the same time, and then the three feet are locked tightly between them and the inner triangle of the adjusting plate 1 to achieve tight fixation of the tripod feet, thereby further ensuring the stability during surveying.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-stability surveying instrument leveling device, comprising a leveling plate (1), wherein the leveling plate (1) is a hollow triangular plate structure, and positioning pins (2) are provided at the outer triangular parts of the plate, and a level tube (3) is also installed on the top of the leveling plate (1), characterized in that, The outer triangular part of the adjusting plate (1) is formed with a fixed protrusion (4), and the positioning pin (2) is movably set on the inner side of the fixed protrusion (4). The outer wall of the positioning pin (2) is provided with axially distributed soil traps (7), and the soil traps (7) are located below the connecting ball block (5); The inner triangle of the adjustment plate (1) is provided with a snap-fit ​​arc block (8), and the three snap-fit ​​arc blocks (8) are used to clamp the foot nails at the bottom of the surveying instrument tripod between it and the inner triangle of the adjustment plate (1). The inner side of the adjustment plate (1) is also provided with a positioning component, which is used to position the three snap-fit ​​arc blocks (8) so that they are snapped securely.

2. The high-stability surveying instrument leveling device according to claim 1, characterized in that: The outer wall of the positioning pin (2) is formed with a connecting ball block (5), and the inner side of the fixing convex plate (4) is provided with a connecting ball groove (6) that is adapted to the connecting ball block (5), and the connecting ball block (5) is movably disposed on the inner side of the connecting ball groove (6).

3. The high-stability surveying instrument leveling device according to claim 2, characterized in that: The positioning component includes a central frame (9) fixedly connected to the inner wall of the adjusting plate (1). The top of the central frame (9) is integrally formed with a threaded tube (15), and the inner side of the threaded tube (15) is threadedly connected to a limiting threaded block (16). The outer end of the snap-fit ​​arc block (8) is fixedly provided with a sliding rod (10), and the three sliding rods (10) slide through to the inner side of the threaded tube (15) and abut against the outer wall of the limiting threaded block (16) along the axial direction. The bottom of the limiting threaded block (16) has a downwardly narrowing frustum structure.

4. The high-stability surveying instrument leveling device according to claim 3, characterized in that: A knob (17) is fixedly provided at the top of the limiting threaded block (16), and the outer surface of the knob (17) is formed with anti-slip protrusions.

5. The high-stability surveying instrument leveling device according to claim 3, characterized in that: A guide plate (11) is fixedly provided on the outer side of the sliding rod (10), and three sets of sliding grooves (12) are provided on the inner side wall of the adjusting plate (1) to match the three guide plates (11). A spring (14) is connected between the end of the guide plate (11) and the inner wall of the sliding groove (12) and the outer wall of the threaded tube (15).

6. The high-stability surveying instrument leveling device according to claim 5, characterized in that: Guide rods (13) are fixedly connected between the inner walls of the groove (12), and the two sides of the guide plate (11) are slidably disposed on the outside of the guide rods (13).

7. The high-stability surveying instrument leveling device according to claim 3, characterized in that: The inner wall of the snap-fit ​​arc block (8) is fixedly bonded with a protective pad (18), and the protective pad (18) is made of flexible rubber.

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