A highway construction surveying device

Abstract

The utility model relates to road construction surveying technical field discloses a kind of road construction surveying devices, including device pedestal, level gauge body is equipped on device pedestal upper, rotating mechanism is rotatably equipped on device pedestal, adjusting mechanism is equipped on rotating mechanism, rotating mechanism can drive adjusting mechanism and level gauge body rotation, device pedestal bottom is equipped with support rod piece, several device supports are equipped on support rod piece, the beneficial effects compared with prior art of the utility model are as follows: downward pressing device pedestal can make support rod be driven by ground reaction force and move up limit block, a plurality of hinged rods are automatically opened outwards by bracing rod synchronous drive, without manual manual bending support foot;Only need to loosen locking bolt after measurement, spring can push limit block and support rod downward reset, drive device support to automatically fold inwards, overall erection and storage time compared with traditional tripod shorten, substantially improve the measurement operation efficiency of road construction frequent point transfer.

Description

Technical Field

[0001] This utility model relates to the field of highway construction surveying technology, specifically to a highway construction surveying device. Background Technology

[0002] Highway construction surveying is a crucial preliminary step in processes such as roadbed filling, pavement paving, slope trimming, and centerline setting out. It primarily utilizes levels to control elevation, detect cross slopes, and verify flatness, demanding extremely high standards for equipment setup speed, support stability, leveling efficiency, and angle adjustment accuracy. Construction sites often consist of soft soil, gravel slopes, and uneven terrain, frequently accompanied by vibration interference. Traditional surveying equipment is no longer adequate for the demands of efficient, accurate, and stable construction.

[0003] Current highway construction surveying generally adopts the traditional combination of tripod and level instrument. The tripod is mostly supported by three independent metal legs. Each leg is equipped with a rotating locking sleeve and telescopic tube. Leveling requires manual rotation of the three leveling screws to repeatedly raise and lower the level. The adjustment steps are numerous, the amount of backtracking is large, and the leveling time is long, which seriously affects the measurement efficiency and data consistency.

[0004] Regarding adaptability to complex terrain, traditional equipment has fixed outrigger angles and cannot adaptively extend, making it difficult to stably set up in narrow spaces, slopes, and ditches. Pointed supports are prone to embedding in soft soil, while disc-shaped supports have a small contact area on slopes and poor stability. After measurement, storage requires loosening screws and retracting outriggers one by one, a cumbersome and time-consuming process that is not conducive to frequent measurement operations. In terms of automation and convenience, current technology remains in the stage of purely manual operation. There is no linkage extension mechanism, and outriggers must be manually pried open one by one; there are no adaptive telescopic outriggers, so they cannot automatically level themselves according to ground undulations; there is no integrated locking structure, and multiple knobs must be locked separately after setup, which is cumbersome and prone to missing locks, leading to the risk of tipping over. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned difficulties and provide a highway construction surveying device.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A highway construction surveying device includes a base, a level instrument body on top of the base, a rotating mechanism rotatably mounted on the base, an adjusting mechanism mounted on the rotating mechanism, the level instrument body mounted on the adjusting mechanism, and the rotating mechanism driving the adjusting mechanism and the level instrument body to rotate. The adjusting mechanism driving the level instrument body to perform pitch and tilt adjustments. A support rod is provided at the bottom of the base, and several device supports are mounted on the support rod. The support rod includes a cylindrical member fixed to the bottom of the base, and a support rod is slidably inserted into the bottom of the cylindrical member. When the support rod moves upward, it can drive the device supports to expand outward.

[0007] As an improvement, a limiting block that moves inside the cylinder is provided at the top of the support rod, and a spring is provided inside the cylinder between the limiting block and the top of the inner wall of the cylinder.

[0008] As an improvement, several sliding grooves are provided on the side wall of the cylinder, and a support that slides in the sliding groove is provided at the side end of the limiting block. Several hinge seats are provided at the top of the cylinder. The device support includes a hinge rod that is hinged to the top of the hinge seat. A second hinge seat is provided on the lower end face of the hinge rod. A support rod is hinged between the second hinge seat and the support. A locking bolt that abuts against the support rod is threaded into the bottom of the cylinder. A telescopic rod is fixed to the bottom end of the hinge rod.

[0009] As an improvement, the telescopic rod includes an electric telescopic rod 1 fixed to the bottom end of the hinge rod. The telescopic end of the electric telescopic rod 1 is provided with a right-angle plate. The right-angle plate is hinged to the electric telescopic rod 1 through a connecting seat. An elastic sheet is connected between the horizontal plate of the right-angle plate and the inner end face of the telescopic end of the electric telescopic rod 1.

[0010] As an improvement, an assembly groove is provided on the device base, and the rotating mechanism includes a worm wheel that rotates in the assembly groove. A worm is meshed with one side of the worm wheel, and the rotating shafts at both ends of the worm pass through the device base and have adjustment ends at the ends of the rotating shafts. A circular plate that blocks the assembly groove is fixed on the worm wheel, and the adjustment mechanism is located on the circular plate.

[0011] As an improvement, the circular plate is provided with a hinge seat three, and the adjustment mechanism includes a rotating block with a semi-circular bottom. The rotating block is provided with an end shaft that is rotatably inserted into the hinge seat three. The bottom of the rotating block is provided with a toothed groove, and the circular plate is provided with a groove. An electric telescopic rod three is provided in the groove. The telescopic end of the electric telescopic rod three is provided with a drive block, and the drive block is provided with a toothed plate that meshes with the toothed groove.

[0012] As an improvement, the adjustment mechanism also includes a support plate located above the rotating block, the level instrument body is mounted on the support plate, a top seat is provided at the top of the rotating block, a hinge block is provided at the bottom of the support plate and hinge seat four is provided at the end of the support plate, a shaft seat is provided at the end of the shaft, and an electric telescopic rod two is hinged between the shaft seat and hinge seat four.

[0013] The advantages of this utility model compared with the prior art are as follows: 1. This device achieves one-click rapid setup and automatic storage through a purely mechanical linkage design between the support rods and the device bracket. Pressing down on the device base causes the support rod to move upward due to the ground reaction force, which in turn moves the limit block upward. The support rod synchronously drives multiple sets of hinged rods to automatically expand outward, eliminating the need for manual prying of the support legs. After measurement, simply loosening the locking bolts allows the spring to push the limit block and support rod downward to reset, causing the device bracket to automatically retract inward. The overall setup and storage time is shorter than that of traditional tripods, significantly improving the efficiency of measurement operations with frequent changes in location during highway construction.

[0014] 2. This device, through multiple sets of independently controllable telescopic rods and an adaptive fitting structure, perfectly adapts to various complex construction terrains. The electric telescopic rod at the bottom of the hinged rod can be individually adjusted in length, allowing for adjustments to the support height for low-lying or raised undulating ground, ensuring that all support feet are in full contact with the ground without the need for manual leveling with stones or wooden boards. The hinged right-angle plate, combined with the elastic sheet, can automatically adjust the fitting angle according to the ground slope, significantly increasing the ground contact area. This not only prevents subsidence of soft soil foundations but also enables stable installation on slopes and in narrow spaces. At the same time, the elastic sheet can absorb ground vibrations caused by construction machinery operations and vehicle traffic, reducing level lens shake and improving the stability of measurement readings.

[0015] 3. This device achieves precise and rapid leveling in both pitch and tilt dimensions through an adjustment mechanism, completely solving the pain point of cumbersome leveling in traditional equipment; the electric telescopic rod three drives the rotating block to complete the pitch angle adjustment around the end shaft through the meshing transmission of the toothed plate and tooth groove. The gear and rack meshing transmission has no backlash and no clearance, resulting in higher adjustment accuracy and adapting to the needs of various operation scenarios such as highway elevation measurement and slope detection; the electric telescopic rod two can drive the support plate to tilt and rotate left and right around the hinge block. With the level bubble built into the level instrument, the level instrument can be quickly calibrated to a standard level state without the need for repeated manual adjustment of the fine-tuning screws, greatly shortening the leveling time and ensuring the consistency of measurement data.

[0016] 4. This device adopts an integrated locking design. Only a single set of locking bolts needs to be tightened to lock the relative position of the support rod and the cylinder, thereby fixing the opening angle of all supports. There are no multiple locking operations, which completely avoids the risk of tipping over due to missing locks and improves operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a highway construction surveying device according to this utility model.

[0018] Figure 2 This is a schematic diagram showing the overall structure of a highway construction surveying device according to this utility model.

[0019] Figure 3 This is a cross-sectional schematic diagram of the support rod of a highway construction surveying device according to this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of a highway construction surveying device according to this utility model.

[0021] Figure 5 This is a partial structural breakdown diagram of a highway construction surveying device according to this utility model. Figure 1 .

[0022] Figure 6This is a partial structural breakdown diagram of a highway construction surveying device according to this utility model. Figure 2 .

[0023] Figure 7 This is a schematic diagram of the adjustment mechanism of a highway construction surveying device according to this utility model.

[0024] Figure 8 This is a schematic diagram of the right-angle plate structure of a highway construction surveying device according to this utility model.

[0025] As shown in the figure: 1. Device base; 101. Assembly groove; 2. Support rod; 201. Cylindrical component; 202. Support rod; 203. Limiting block; 204. Spring; 205. Slide groove; 206. Support; 207. Locking bolt; 208. Hinge seat one; 3. Device bracket; 301. Hinge rod; 302. Hinge seat two; 303. Support rod; 304. Electric telescopic rod one; 305. Right angle plate; 306. Elastic sheet; 307. Connecting seat; 4. Rotating mechanism; 01. Worm gear; 402. Worm; 403. Rotating shaft; 404. Adjusting end; 405. Circular plate; 406. Groove; 407. Hinge seat three; 5. Adjusting mechanism; 501. Rotating block; 502. End shaft; 503. Shaft seat; 504. Top seat; 505. Support plate; 506. Hinge block; 507. Hinge seat four; 508. Electric telescopic rod two; 509. Electric telescopic rod three; 510. Drive block; 511. Tooth plate; 512. Tooth groove; 6. Level body. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Combined with appendix Figure 1 Appendix Figure 2 As shown: A highway construction surveying device includes a device base 1, a level instrument body 6 is provided on the top of the device base 1, a rotating mechanism 4 is rotatably provided on the device base 1, an adjustment mechanism 5 is provided on the rotating mechanism 4, the level instrument body 6 is provided on the adjustment mechanism 5 and the rotating mechanism 4 can drive the adjustment mechanism 5 and the level instrument body 6 to rotate, the adjustment mechanism 5 can drive the level instrument body 6 to perform pitch adjustment and tilt adjustment, a support rod 2 is provided at the bottom of the device base 1, and a plurality of device brackets 3 are provided on the support rod 2.

[0028] This highway construction surveying device uses the base 1 as a rigid load-bearing platform. The bottom support rods 2 automatically expand outward through the reaction force of the support rods 202 touching the ground, enabling rapid adaptive erection and stable support on soft roadbeds, gravel slopes, and uneven ground at highway construction sites, without the need for repeated manual adjustment of the support angles. The top rotation mechanism 4 drives the level instrument body 6 to achieve seamless circumferential horizontal rotation through a self-locking transmission, accurately aligning it with the leveling measurement points for highway construction. The adjustment mechanism 5, through gear and rack meshing transmission and the coordinated drive of the dual electric telescopic rods, accurately adjusts the pitch angle of the level instrument body 6 and automatically levels its left and right tilt, quickly calibrating the level instrument body 6 to a standard level state. This meets the construction surveying needs of various scenarios such as highway subgrade elevation measurement, road cross slope detection, route centerline layout, and slope verification. The entire device solves the problems of cumbersome erection, low leveling efficiency, unstable support in complex terrain, and unstable measurement accuracy associated with traditional highway surveying tripods.

[0029] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 5 Appendix Figure 8 As shown: The device base 1 is provided with an assembly groove 101. The support rod 2 includes a cylindrical part 201 fixed to the bottom of the device base 1. A support rod 202 is slidably inserted into the bottom of the cylindrical part 201. A limiting block 203 that moves inside the cylindrical part 201 is provided at the top of the support rod 202. A spring 204 is provided inside the cylindrical part 201 between the limiting block 203 and the top of the inner wall of the cylindrical part 201. When the limiting block 203 moves upward, it can drive the device bracket 3 to be pushed outward.

[0030] The cylindrical component 201 has several sliding grooves 205 on its side wall. The end of the limiting block 203 is provided with a support 206 that slides in the sliding groove 205. The top of the cylindrical component 201 is provided with several hinge seats 208. The device support 3 includes a hinge rod 301 whose top end is hinged to the hinge seat 208. The lower end face of the hinge rod 301 is provided with a second hinge seat 302. A support rod 303 is hinged between the second hinge seat 302 and the support 206. A locking bolt 207 that abuts against the support rod 202 is threaded into the bottom of the cylindrical component 201. A telescopic rod is fixed to the bottom end of the hinge rod 301.

[0031] The telescopic rod includes an electric telescopic rod 304 fixed to the bottom end of the hinge rod 301. The telescopic end of the electric telescopic rod 304 is provided with a right angle plate 305. The right angle plate 305 is hinged to the electric telescopic rod 304 through a connecting seat 307. An elastic plate 306 is connected between the horizontal plate of the right angle plate 305 and the inner end face of the telescopic end of the electric telescopic rod 304.

[0032] The device base 1 is the core supporting body of the entire measuring device. It includes a device base 1 made of high-strength aluminum alloy through die casting. The base has a circular platform structure. A circular recessed assembly groove 101 is provided at the center of the top. The inner diameter of the assembly groove 101 is adapted to the outer diameter of the worm gear 401. A bearing mounting position is provided at the bottom of the groove to provide rotational support for the rotating mechanism 4.

[0033] The base 1 and the cylindrical part 201 of the support rod 2 are rigidly connected to form the top load-bearing body of the whole device, which bears all the static loads of the level body 6, the adjustment mechanism 5 and the rotation mechanism 4, and eliminates the measurement data deviation caused by the deformation of the base. The mounting groove 101 at the top provides the installation space for the worm gear 401. The bearing at the bottom of the groove supports the worm gear 401 to rotate smoothly, while preventing dust, sand and mud from the construction site from entering the transmission structure, ensuring the smoothness of the transmission of the worm gear 401 and worm 402. The top of the mounting groove 101 is completely sealed by the circular plate 405 on the worm gear 401 to form a flat installation top surface, providing a horizontal installation reference surface for the adjustment mechanism 5.

[0034] The support rod 2 is the core linkage drive mechanism that supports the device bracket 3. It includes a cylindrical member 201 that is vertically fixed to the center of the bottom of the device base 1. The cylindrical member 201 is a hollow cylindrical structure. A vertical support rod 202 is slidably inserted into the bottom opening. A circular limiting block 203 is integrally formed at the top of the support rod 202. The outer diameter of the limiting block 203 is clearance-fitted with the inner diameter of the cylindrical member 201, and can slide freely up and down along the inner wall of the cylindrical member 201. A spring 204 is provided inside the cylindrical member 201. The upper and lower ends of the spring 204 abut against the top of the inner wall of the cylindrical member 201 and the upper surface of the limiting block 203, respectively, and always provide a downward elastic thrust to the limiting block 203. The side wall of the cylindrical component 201 is evenly provided with vertical grooves 205 along the circumference. The side end of the limiting block 203 is fixedly connected with a support 206 in the same number as the grooves 205. The support 206 extends out of the cylindrical component 201 through the grooves 205 and can slide up and down along the grooves 205. The top outer wall of the cylinder 201 is uniformly welded with hinge seats 208 corresponding to the number of slide grooves 205, which are used for the hinge rods 301 of the hinge device bracket 3; the bottom side wall of the cylinder 201 is threaded with locking bolts 207, and the end of the locking bolts 207 can extend into the inside of the cylinder 201 and abut against the outer wall of the support rod 202 to lock it.

[0035] In the initial storage state, the spring 204 pushes the limiting block 203 to the bottom of the cylinder 201, the support rod 202 extends fully out of the cylinder 201, and the device bracket 3 is in a folded state, which is convenient for storage and transportation. When setting up on site, the device is placed vertically at the measurement point of the highway construction. The bottom end of the support rod 202 is in contact with the ground. The operator presses down on the device base 1. The reaction force of the ground pushes the support rod 202 and the limiting block 203 to slide upward along the inner wall of the cylinder 201, compressing the spring 204. The support 206 on the side of the limiting block 203 slides upward synchronously along the slide groove 205. During the upward movement of the support 206, the hinge rod 303 pushes the hinge rod 301 to swing outward around the hinge seat 208, realizing the automatic outward expansion of the device support 3 without the need for manual prying of the legs. After the device support 3 is fully extended and the device base 1 is adjusted to a roughly horizontal position, the operator tightens the locking bolt 207 at the bottom of the cylinder 201, so that the end of the locking bolt 207 tightly abuts against the outer wall of the support rod 202, completely locking the relative position of the support rod 202 and the cylinder 201, thereby fixing the extension angle of the device support 3 and the overall height of the device, ensuring that the support structure will not shrink or shake during the measurement process; after the measurement is completed, the locking bolt 207 is loosened, and the elastic force of the spring 204 pushes the limit block 203 and the support rod 202 to return to their original position downwards, causing the support 206 to slide down along the slide groove 205, pulling the device support 3 to automatically retract inwards, completing the storage.

[0036] The device support 3 is the main body of the ground support. A hinge seat 302 is welded to the middle of the hinge rod 301. A support rod 303 is hinged between the hinge seat 302 and the support 206. The two ends of the support rod 303 are respectively hinged to the support 206 and the hinge seat 302 by pins to form a triangular support structure. An electric telescopic rod 304 is fixed to the bottom end of the hinge rod 301 by bolts. The telescopic end of the electric telescopic rod 304 faces downward. An L-shaped right angle plate 305 is hinged to the end of the electric telescopic rod 304 by a connecting seat 307. The horizontal plate of the right angle plate 305 faces the center of the device. An elastic sheet 306 is fixed between the upper surface of the horizontal plate of the right angle plate 305 and the inner end face of the telescopic end of the electric telescopic rod 304.

[0037] Once the hinge rod 301 is extended to the predetermined angle, the operator can control the extension length of each set of electric telescopic rods 304 according to the flatness of the ground. For support feet in low-lying areas, the electric telescopic rod 304 is extended downwards to ensure that the bottom surface of the right-angle plate 305 is in close contact with the ground. For support feet in raised areas, the electric telescopic rod 304 is retracted upwards to ensure that all support feet are in complete contact with the ground, achieving multi-point adaptive leveling without the need for manual placement of stones or wooden boards. The right-angle plate 305 is hinged to the electric telescopic rod 304 through the connecting seat 307. With the elastic buffer of the elastic plate 306, it can adapt to the slope of the ground. Even on highway slopes and sloping roadbeds, the horizontal plate of the right-angle plate 305 can be completely in contact with the ground, increasing the contact area and preventing the device from sinking in soft soil. At the same time, the elastic plate 306 can absorb ground vibrations caused by vehicle traffic and mechanical operations at the construction site, reducing the shaking of the lens of the level instrument body 6 and ensuring the stability of the measurement readings.

[0038] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 Appendix Figure 7 As shown: The rotating mechanism 4 includes a worm gear 401 that rotates in the assembly groove 101. A worm 402 is meshed with one side of the worm gear 401. The rotating shafts 403 at both ends of the worm 402 pass through the device base 1 and the ends of the rotating shafts 403 are provided with adjusting heads 404. A circular plate 405 that blocks the assembly groove 101 is fixed on the worm gear 401. The adjusting mechanism 5 is provided on the circular plate 405.

[0039] The circular plate 405 is provided with a hinge seat 407. The adjustment mechanism 5 includes a rotating block 501 with a semi-circular bottom. The rotating block 501 is provided with an end shaft 502 that is rotatably inserted into the hinge seat 407. The bottom of the rotating block 501 is provided with a toothed groove 512. The circular plate 405 is provided with a groove 406. An electric telescopic rod 509 is provided in the groove 406. The telescopic end of the electric telescopic rod 509 is provided with a drive block 510. The drive block 510 is provided with a toothed plate 511 that meshes with the toothed groove 512.

[0040] The adjustment mechanism 5 also includes a support plate 505 located above the rotating block 501. The level instrument body 6 is mounted on the support plate 505. The top of the rotating block 501 is provided with a top seat 504. The bottom of the support plate 505 is provided with a hinge block 506 that is hinged to the top seat 504. The end of the support plate 505 is provided with a hinge seat 507. The end of the end shaft 502 is provided with a shaft seat 503. An electric telescopic rod 508 is hinged between the shaft seat 503 and the hinge seat 507.

[0041] The rotating mechanism 4 is the driving mechanism for the circumferential rotation of the level body 6. It includes a worm gear 401 rotatably installed in the assembly slot 101. The bottom of the worm gear 401 is connected to the bottom of the assembly slot 101 through a thrust bearing and can rotate freely around the central axis. A worm 402 is meshed with one side of the worm gear 401. The two ends of the worm 402 are integrally formed with a rotating shaft 403. The rotating shaft 403 extends outward through the side wall of the device base 1. An adjusting end head 404 is fixedly installed at the end of the rotating shaft 403. The outer wall of the adjusting end head 404 can be knurled for anti-slip treatment. A circular plate 405 is fixed to the top of the worm gear 401 by bolts. The outer diameter of the circular plate 405 is the same as the outer diameter of the device base 1, completely sealing the top opening of the assembly slot 101. A hinge seat 407 is welded to the upper surface of the circular plate 405. A recessed groove 406 is opened on the upper surface of the circular plate 405. The groove 406 is used to install the electric telescopic rod 509 of the adjusting mechanism 5.

[0042] When the measuring direction of the level instrument body 6 needs to be adjusted, the operator rotates the adjusting end 404 with one hand, causing the rotating shaft 403 and worm gear 402 to rotate synchronously. The worm gear 402 is driven by the meshing of the helical teeth with the worm wheel 401, causing the worm wheel 401 to rotate smoothly around the central axis in the assembly groove 101. The circular plate 405 on the top of the worm wheel 401 rotates synchronously with the worm wheel 401, thereby driving the adjusting mechanism 5 on the circular plate 405 and the level instrument body 6 to complete the circumferential horizontal rotation, accurately aligning with the foresight and backsight leveling rod points for highway construction. The worm wheel 401 and worm gear 402 transmission has a reverse self-locking characteristic. When the operator stops rotating the adjusting end 404, the transmission will automatically lock in place. After 4, the worm gear 401 cannot drive the worm 402 to rotate in the reverse direction, which can firmly lock the level body 6 in the current measurement direction. Even if it is slightly touched, there will be no angle deviation or rebound, ensuring the stability of the measurement direction. The circular plate 405 rotates synchronously with the worm gear 401, and the hinge seat 3 407 on its top rotates synchronously with the groove 406, ensuring that all parts of the adjustment mechanism 5 turn synchronously with the level body 6 and there will be no transmission interference. The circular plate 405 completely seals the assembly groove 101, which can prevent dust and mud from the construction site from entering the worm gear 401 and worm 402 transmission pair, ensuring the smoothness of transmission and service life.

[0043] The adjustment mechanism 5 is the core mechanism for the pitch and tilt adjustment of the level body 6. It includes a semi-circular rotating block 501 at the bottom, with horizontal end shafts 502 integrally formed at the center of both sides of the rotating block 501. The end shafts 502 are rotatably inserted into the shaft holes of the hinge seat 407, allowing the rotating block 501 to pitch and roll back and forth around the axis of the end shaft 502. Shaft seats 503 are fixedly installed at both ends of the end shaft 502, and a top seat 504 is welded to the center of the top of the rotating block 501. The semi-circular bottom of the rotating block 501 is evenly provided with toothed grooves 512 along the arc direction. An electric telescopic rod 509 is horizontally fixedly installed in the groove 406 on the circular plate 405. The telescopic end of the telescopic rod 509 is fixedly connected to a drive block 510. The upper surface of the drive block 510 is integrally formed with a toothed plate 511 that meshes with the toothed groove 512. A horizontal support plate 505 is provided above the rotating block 501. The level instrument body 6 is fixedly installed on the upper surface of the support plate 505 by bolts. A hinge block 506 is welded to the bottom center of the support plate 505. The hinge block 506 is hinged to the top seat 504 by a horizontal pin. The support plate 505 can tilt and rotate left and right around the pin of the hinge block 506. A hinge seat 507 is welded to the bottom of one end of the support plate 505. The two ends of the electric telescopic rod 508 are respectively hinged to the shaft seat 503 and the hinge seat 507.

[0044] When it is necessary to adjust the pitch angle of the level instrument body 6, the electric telescopic rod 509 is activated. The electric telescopic rod 509 drives the drive block 510 to move horizontally back and forth along the groove 406. The toothed plate 511 on the drive block 510 meshes with the toothed groove 512 at the bottom of the rotating block 501, driving the semi-circular rotating block 501 to pitch and rotate back and forth around the axis of the end shaft 502. Then, through the top seat 504 and the hinge block 506, the support plate 505 is driven to complete the pitch angle adjustment synchronously with the level instrument body 6. It is suitable for the needs of leveling rod measurement at different elevations of highways, slope detection and other operations. The meshing transmission between the toothed plate 511 and the toothed groove 512 is free of backlash and gap. After the adjustment is in place, the angle is kept stable by the self-locking of the electric telescopic rod. When it is necessary to level the body 6 of the level instrument and adjust its left and right tilt, start the electric telescopic rod 508. The electric telescopic rod 508 extends and retracts, causing the support plate 505 to tilt and rotate left and right around the pin of the hinge block 506, adjusting the left and right level of the support plate 505. With the help of the bubble level built into the body 6 of the level instrument, the body 6 of the level instrument can be quickly calibrated to the standard level state, completely solving the tedious operation of traditional tripods that require repeated tightening of the fine adjustment screws of the support legs. When the rotating mechanism 4 drives the level instrument body 6 to rotate circumferentially, the entire adjustment mechanism 5 rotates synchronously with the circular plate 405, ensuring that the levelness and pitch angle after leveling will not change, eliminating the need for repeated leveling and greatly improving the efficiency of multi-directional continuous measurement.

[0045] The level instrument body 6 is fixedly mounted on the upper surface of the support plate 505 of the adjustment mechanism 5 by fastening bolts. It can complete circumferential rotation, pitch adjustment and horizontal leveling in sync with the support plate 505. The level instrument body 6 is equipped with a high magnification optical lens, automatic leveling compensator, level tube and digital reading display screen, which can accurately read the scale data of the leveling rod.

[0046] After the instrument is erected, rotated circumferentially, and leveled, the level instrument body 6 enters the working state. Its automatic leveling compensator can automatically compensate for minor tilt errors, ensuring that the lens is always in a horizontal measurement state. The operator uses the optical lens of the level instrument body 6 to align with the leveling rod at the highway construction measurement point, reads and records the readings of the middle and upper wires of the leveling rod, and completes the collection of highway construction measurement data such as roadbed elevation, road cross slope, centerline elevation, slope gradient, and bridge pier elevation. The lens of the level instrument body 6 can be quickly rotated through the rotating mechanism 4 to complete the continuous reading of the front and back sight leveling rods, realizing closed leveling measurement, attached leveling measurement, and other operations. During the measurement process, the adjustment mechanism 5 can finely adjust the pitch angle and levelness in real time to ensure the accuracy of the measurement readings.

[0047] When implementing the highway construction surveying device, first move the entire device to the highway construction surveying point, place it vertically, and press down on the device base 1. The support rod 202 is pushed by the ground reaction force to slide the limiting block 203 upward along the cylinder 201 and compress the spring 204. The limiting block 203 drives the support 206 to move upward along the slide groove 205. Through the support rod 303, the hinge rod 301 is pushed to automatically open outward around the hinge seat 208. Tighten the locking bolt 207 to lock the relative position of the support rod 202 and the cylinder 201. Then, the extension length of each electric telescopic rod 304 is adjusted so that the right-angle plate 305 adapts to the ground with the cooperation of the elastic plate 306, thus completing the stable support for complex terrain.

[0048] Next, rotate the adjusting end 404 of the rotating mechanism 4, which drives the worm wheel 401 to rotate through the worm 402, causing the circular plate 405 to rotate synchronously, driving the adjusting mechanism 5 and the level body 6 to achieve circumferential horizontal rotation, and accurately aligning with the measurement point; Start the electric telescopic rod 509 of the adjustment mechanism 5. Through the meshing of the toothed plate 511 and the toothed groove 512, drive the rotating block 501 to pitch around the end shaft 502, and complete the pitch angle adjustment of the level body 6. Then start the electric telescopic rod 508 to extend and retract, drive the support plate 505 to tilt left and right around the hinge block 506, and cooperate with the level bubble of the level body 6 to quickly calibrate to a horizontal state.

[0049] After the level instrument body 6 is set up, turned, and leveled, construction measurement operations such as roadbed elevation, road surface cross slope, and slope gradient can be carried out. After the measurement is completed, the locking bolt 207 is loosened, the spring 204 pushes the limit block 203 and the support rod 202 to reset downwards, and drives the device bracket 3 to automatically retract and complete the storage.

[0050] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A highway construction surveying device, comprising a device base (1), and a level instrument body (6) disposed above the device base (1), characterized in that: A rotating mechanism (4) is rotatably provided on the device base (1), and an adjustment mechanism (5) is provided on the rotating mechanism (4). The level instrument body (6) is located on the adjustment mechanism (5), and the rotating mechanism (4) can drive the adjustment mechanism (5) and the level instrument body (6) to rotate. The adjustment mechanism (5) can drive the level instrument body (6) to perform pitch adjustment and tilt adjustment. A support rod (2) is provided at the bottom of the device base (1), and several device supports (3) are provided on the support rod (2). The support rod (2) includes a cylindrical part (201) fixed to the bottom of the device base (1). A support rod (202) is slidably inserted into the bottom of the cylindrical part (201). When the support rod (202) moves upward, it can drive the device supports (3) to be pushed outward.

2. The highway construction surveying device according to claim 1, characterized in that: The top of the support rod (202) is provided with a limiting block (203) that moves inside the cylinder (201), and the cylinder (201) is provided with a spring (204) located between the limiting block (203) and the top of the inner wall of the cylinder (201).

3. The highway construction surveying device according to claim 2, characterized in that: The cylindrical component (201) has several sliding grooves (205) on its side wall. The side end of the limiting block (203) is provided with a support (206) that slides in the sliding groove (205). The top of the cylindrical component (201) is provided with several hinge seats (208). The device support (3) includes a hinge rod (301) whose top end is hinged to the hinge seat (208). The lower end face of the hinge rod (301) is provided with a hinge seat (302). A support rod (303) is hinged between the hinge seat (302) and the support (206). A locking bolt (207) that abuts against the support rod (202) is threaded into the bottom of the cylindrical component (201). A telescopic rod is fixed to the bottom end of the hinge rod (301).

4. A highway construction surveying device according to claim 3, characterized in that: The telescopic rod includes an electric telescopic rod one (304) fixed to the bottom end of the hinge rod (301). The telescopic end of the electric telescopic rod one (304) is provided with a right angle plate (305). The right angle plate (305) is hinged to the electric telescopic rod one (304) through a connecting seat (307). An elastic plate (306) is connected between the horizontal plate of the right angle plate (305) and the inner end face of the telescopic end of the electric telescopic rod one (304).

5. A highway construction surveying device according to claim 1, characterized in that: An assembly groove (101) is provided on the device base (1). The rotating mechanism (4) includes a worm wheel (401) that rotates in the assembly groove (101). A worm (402) is meshed on one side of the worm wheel (401). The rotating shafts (403) at both ends of the worm (402) pass through the device base (1) and the ends of the rotating shafts (403) are provided with adjusting heads (404). A circular plate (405) that blocks the assembly groove (101) is fixed on the worm wheel (401). The adjusting mechanism (5) is provided on the circular plate (405).

6. A highway construction surveying device according to claim 5, characterized in that: The circular plate (405) is provided with a hinge seat three (407). The adjustment mechanism (5) includes a rotating block (501) with a semi-circular bottom. The rotating block (501) is provided with an end shaft (502) that is rotatably inserted into the hinge seat three (407). The bottom of the rotating block (501) is provided with a toothed groove (512). The circular plate (405) is provided with a groove (406). The groove (406) is provided with an electric telescopic rod three (509). The telescopic end of the electric telescopic rod three (509) is provided with a drive block (510). The drive block (510) is provided with a toothed plate (511) that meshes with the toothed groove (512).

7. A highway construction surveying device according to claim 6, characterized in that: The adjustment mechanism (5) also includes a support plate (505) located above the rotating block (501), the level body (6) is mounted on the support plate (505), the top of the rotating block (501) is provided with a top seat (504), the bottom of the support plate (505) is provided with a hinge block (506) that is hinged to the top seat (504), the end of the support plate (505) is provided with a hinge seat four (507), the end of the end shaft (502) is provided with a shaft seat (503), and an electric telescopic rod two (508) is hinged between the shaft seat (503) and the hinge seat four (507).

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