Surveying and mapping device convenient to level

Abstract

The invention relates to a surveying and mapping device convenient to level. The surveying and mapping device comprises an adjusting workbench, a basic workbench, a first leveling mechanism and a second leveling mechanism, the first leveling mechanism and the second leveling mechanism are arranged between the adjusting workbench and the basic workbench in a crossed mode and each comprise a fixing column, a lead screw, a fixing rod, a fixing base, a lifting base, a sliding block, a driving transmission rod and a follow-up transmission rod. The fixed column is fixed on the basic workbench, and the center of the adjusting workbench is connected to the fixed column through a spherical hinge; a fixed block and a sliding block are respectively arranged in the fixed groove and the sliding groove; the lead screw and the fixing rod are arranged on the adjusting workbench through spherical hinges, the lifting base is connected to the lead screw in a threaded mode, the two ends of the driving transmission rod are hinged between the lifting base and the fixing block respectively, the follow-up transmission rods are hinged between the fixing base and the sliding block respectively, and the upper end of the lead screw is in transmission connection with the motor. On the basis of the basic workbench, leveling work is carried out through the two-stage leveling mechanism, the adjusting steps are simplified, and the leveling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly relates to a surveying and mapping device that is convenient for leveling. Background Art

[0002] In the process of project cost, a rangefinder is an important surveying and mapping instrument for construction engineering, which is used to measure parameters such as the size, distance, and height of buildings, providing basic data for the accurate calculation of project cost. However, there are many deficiencies in the traditional rangefinder during use, especially in terms of bracket adjustment and measurement accuracy, which affect the efficiency and accuracy of project cost calculation.

[0003] Traditional rangefinders usually use a tripod for support, and change the height and level of the instrument by adjusting the opening angles of the three legs. However, this adjustment method requires frequent adjustment of the leg positions and re-fixing of the bracket after each adjustment, which is cumbersome and time-consuming. The adjustment of the bracket depends mostly on the experience of the construction workers, and it is easy to have a deviation in the level, resulting in inaccurate measurement data. After frequent adjustment of the bracket, the stability of the instrument is difficult to guarantee, and it is easily affected by external vibrations or wind, further reducing the measurement accuracy.

[0004] At the same time, the level adjustment of the traditional rangefinder depends on the adjustment of the legs of the tripod. Once the bracket moves or is adjusted, the level is prone to deviation and needs to be recalibrated. After each adjustment of the bracket, the level needs to be recalibrated again, increasing the operation time and workload. The deviation of the level will directly affect the measurement accuracy of the rangefinder. Especially in the project cost calculation with high-precision requirements, this deviation may lead to large errors in the cost calculation results.

[0005] It has poor adaptability in complex construction environments (such as uneven ground, narrow spaces, or high-altitude operations), and it is difficult to quickly adjust and stably measure, with a limited adaptation range.

[0006] Based on this, it is necessary to research a surveying and mapping device that is convenient for leveling. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a surveying and mapping device that is convenient for leveling, effectively solving the problems of low adjustment efficiency, easy deviation, and limited adaptation range of the existing rangefinder leveling structure.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is: a surveying and mapping device that is convenient for leveling, including an adjustment workbench, a basic workbench, a first leveling mechanism, and a second leveling mechanism; the first leveling mechanism and the second leveling mechanism are cross-set between the adjustment workbench and the basic workbench to level the adjustment workbench by using the first leveling mechanism and the second leveling mechanism on the basis of the basic workbench; Both the first leveling mechanism and the second leveling mechanism include a fixed column, a lead screw, a fixed rod, a fixed seat, a lifting seat, a slider, a driving link rod, and a follower link rod; the fixed column is fixed on the basic workbench, and the center of the adjusting workbench is connected to the fixed column through a ball seat; a fixed groove and a sliding groove are provided on the side surface of the fixed column, and a fixed block and a slider are respectively arranged in the fixed groove and the sliding groove; the lead screw and the fixed rod are arranged on the adjusting workbench through ball hinges and are symmetric with respect to the center, a fixed seat is arranged at the bottom of the fixed rod, the lifting seat is threadedly connected to the lead screw, two ends of the driving link rod are respectively hinged between the lifting seat and the fixed block, the follower link rod is respectively hinged between the fixed seat and the slider, and the upper end of the lead screw is in transmission connection with a motor.

[0009] Further, the first leveling mechanism and the second leveling mechanism are arranged vertically, and the lead screw and the fixed rod are arranged on a circumference with the ball hinge center of the adjusting workbench as the center of the circle.

[0010] Further, a locking mechanism is further included, and the locking mechanism includes a locking piece, a claw, and a locking chuck; a clamping groove is arranged between the fixed groove and the sliding groove, the claw is sleeved in the clamping groove, the locking chuck is sleeved at the bottom of the fixed column, a rotatable spiral driving disc is arranged inside the locking chuck, the bottom of the claw is in transmission connection with the spiral driving disc, so that the claw moves inwards or outwards synchronously under the action of the locking chuck, a driving shaft is arranged on the locking chuck, the driving shaft is in transmission connection with the spiral driving disc through a gear, the outer side of the driving shaft is connected with a locking motor, and the locking piece is fixed at the end of the claw and covers the outer side of the slider.

[0011] Further, the slider is sleeved in the sliding groove so that it can move along the sliding groove, the outer side of the slider protrudes from the surface of the fixed column, and the locking piece is on the outer side of the slider.

[0012] Further, the locking piece, the fixed block, and the slider are all arc-shaped structures, and the contact surface between the locking piece and the slider is an anti-friction surface.

[0013] Further, a connecting seat is arranged at the bottom of the lead screw, a connecting plate is fixed on the adjusting workbench, and the connecting seat is fixed on the connecting plate to stabilize the lead screw.

[0014] Further, a mounting seat is arranged on the adjusting workbench, the motor is fixed on the mounting seat, a measuring platform is arranged above the adjusting workbench, and a distance measuring instrument is fixed on the measuring platform.

[0015] Further, a level bubble is arranged on the adjusting workbench corresponding to the lead screw and the fixed rod, and the levelness between the lead screw and the opposite fixed rod is judged through the level bubble.

[0016] Further, operation buttons are provided on the adjustment workbench. The operation buttons are used to control the forward or reverse rotation of the motor. The horizontal spirit level is exposed to the environment, and corresponding adjustment operations are performed by observing the horizontal spirit level.

[0017] Further, the horizontal spirit level is an electronic horizontal spirit level. The electronic horizontal spirit level is connected to a controller, and the controller is connected to the motor controlling the lead screw and controls the forward rotation, reverse rotation and number of rotation turns of the motor.

[0018] The beneficial effects of the above technical solutions are as follows: On the basis of the existing support platform, the present invention is configured with a secondary leveling mechanism. The lower support platform, i.e., the basic workbench, only needs to provide a rough leveling basis. On this leveling basis, a leveling workbench is further configured, and the first leveling structure and the second leveling mechanism are used to realize the secondary leveling of the leveling workbench.

[0019] In the leveling work of the present invention, a combination of a lead screw and a motor is used as the driving basis. The up and down movement of the lifting sleeve is driven by the lead screw. Both ends of the transmission rod are hinged. When the lifting sleeve moves up and down, the inclination angle of this side can be changed, and then the fixed rod on the other side drives the follower transmission rod to perform a follow-up change, so as to realize the leveling work in one direction. Subsequently, the same means are adopted to realize the leveling work in the other direction.

[0020] In terms of structure, the center position of the leveling workbench is connected to the fixed column, i.e., the basic workbench, through a ball joint, and swings around this point to adjust its own levelness. Sliders and fixed blocks are arranged along the circumference with the fixed column as the center. The fixed rods and the lead screws are also arranged correspondingly along the circumference. When the lead screw acts, the angle change of the leveling workbench is realized.

[0021] In order to monitor the leveling state, the present invention uses a horizontal spirit level or an electronic horizontal spirit level for leveling monitoring, and controls the motor and the lead screw to work according to the monitoring results, realizing an electronically controlled leveling operation, reducing the operation difficulty and improving the operation accuracy.

[0022] At the same time, in view of the structural characteristics of the slider, the present invention stabilizes it through a locking mechanism. Thus, after leveling, the present invention can lock the state, thereby ensuring the stability of the horizontal state of the leveling workbench.

[0023] Therefore, based on the basic workbench, after keeping it in a fixed state, the present invention performs the leveling work through a secondary leveling mechanism. This leveling method uses electric control operation, which not only improves the operation accuracy, but also simplifies the adjustment steps, improves the leveling efficiency, and provides a basis for automatic leveling work. This structure can cope with more complex environments. In the case of poor working environments, such as when it is difficult to provide a good leveling support basis in the working environment, leveling operations can be carried out through this structure, with low requirements for the construction environment and a wide adaptation range, providing convenience for project cost assessment personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 is Figure 1 the front view structural diagram of Figure 3 is Figure 1 the top view structural diagram of Figure 4 is Figure 3 the sectional view taken along A-A in Figure 5 is a schematic diagram of the leveling principle; Figure 6 is a schematic diagram of the locking mechanism; Figure 7 is Figure 6 the front view structural diagram of Figure 8 is Figure 6 the top view structural diagram of Figure 9 is the locking principle diagram of the locking chuck.

[0025] Reference numerals: 1 - basic workbench, 2 - adjustment workbench, 3 - leg, 4 - fixed column, 5 - ball seat, 6 - lead screw, 7 - fixed rod, 8 - ball hinge, 9 - motor, 10 - lifting sleeve, 11 - fixed seat, 12 - active transmission rod, 13 - follower transmission rod, 14 - fixed block, 15 - slider, 16 - card slot, 17 - card block, 18 - locking piece, 19 - hinge seat, 20 - locking chuck, 201 - spiral drive disk, 202 - gear, 203 - drive shaft, 204 - locking motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments: Embodiment 1. This embodiment aims to provide a surveying and mapping device that is convenient for leveling. During the engineering cost process, a rangefinder, as a key instrument for building engineering surveying and mapping, is used to measure parameters such as the dimensions, distances, and heights of buildings, providing basic data for cost calculation. However, traditional rangefinders are usually supported by triangular brackets, and the height and levelness are changed by adjusting the angles of the legs. This method is cumbersome and time-consuming to operate, and relies on manual experience. It is easy to cause levelness deviation due to improper adjustment of the bracket or external interference, affecting the measurement accuracy and stability. In addition, traditional rangefinders have poor adaptability in complex construction environments (such as uneven ground, narrow spaces, or high-altitude operations), and it is difficult to quickly adjust and stably measure. Based on this, this embodiment provides a device for leveling a surveying and mapping platform to reduce the difficulty of leveling and improve the leveling efficiency.

[0027] In the specific structure, as Figures 1-4 shown in, a surveying and mapping device that is convenient for leveling includes an adjustment workbench 2, a basic workbench 1, a first leveling mechanism, and a second leveling mechanism; in this embodiment, the basic workbench 1 is in a fixed state, and it can be mounted on the corresponding base according to actual needs, such as a three-leg support structure. The basic workbench 1 is configured on the ground through the legs 3, or on other support bases; stable support is provided by three legs, which is prior art and will not be elaborated again here. Its purpose is to provide a stable foundation for the basic workbench.

[0028] In the basic structure, the basic workbench 1 is in a fixed state, and the adjustment workbench 2 can be adjusted. The rangefinder is assembled on the adjustment workbench 2. After leveling on the adjustment workbench 2, the rangefinder is in a horizontal state.

[0029] To carry out the adjustment work, in this embodiment, the first leveling mechanism and the second leveling mechanism are cross-arranged between the adjustment workbench 2 and the basic workbench 1 to level the adjustment workbench 2 on the basis of the basic workbench 1 by using the first leveling mechanism and the second leveling mechanism; specifically, when implemented, the first leveling mechanism and the second leveling mechanism are vertically arranged, and the first leveling mechanism and the second leveling mechanism are preferably in a vertical relationship. Thus, with the ball joint center of the adjustment workbench 2 as the origin, the first leveling mechanism as the X-axis, and the second leveling mechanism as the Y-axis, the levelness is judged by a horizontal bubble level to realize the attitude adjustment of the adjustment workbench.

[0030] In the specific structure, both the first leveling mechanism and the second leveling mechanism include a fixed column 4, a lead screw 6, a fixed rod 7, a fixed seat 11, a lifting seat 10, a slider 15, a driving transmission rod 12, and a follower transmission rod 13; the fixed column 4 is fixed on the basic workbench 1, and the center of the adjustment workbench 2 is connected to the fixed column 4 through a ball seat 5; in this embodiment, the fixed column 4 is used as the support foundation, and the adjustment workbench 2 is configured on the upper part of the fixed column 4 through a ball joint, so that the adjustment workbench 2 can swing and is supported by the basic workbench 1.

[0031] For adjustment, in this embodiment, a fixing groove and a sliding groove are provided on the side surface of the fixing column 4, and a fixing block 14 and a sliding block 15 are respectively arranged in the fixing groove and the sliding groove; wherein the fixing block 14 is fixed in the fixing groove, the sliding block 15 is slidably arranged in the sliding groove, and hinge seats 19 are arranged in the middle regions on the outer sides of the fixing block 14 and the sliding block 15.

[0032] The lead screw 6 and the fixing rod 7 are arranged on the adjusting workbench 2 through spherical hinges and are symmetrical relative to the center. Among them, the lead screw 6 is rotatably arranged in the spherical hinge and can rotate, and the fixing rod 7 is fixed on the spherical hinge. Through the spherical hinge structure, the first leveling mechanism and the second leveling mechanism can be adjusted one by one to avoid movement interference.

[0033] During specific implementation, the lead screw 6 and the fixing rod 7 are arranged on a circumference with the center of the spherical hinge of the adjusting workbench 2 as the center of the circle. A fixing seat 11 is arranged at the bottom of the fixing rod 7, the lifting seat 10 is threadedly connected to the lead screw 6, hinge seats are arranged on the fixing seat 11 and the lifting seat 10, and both ends of the active transmission rod 12 are respectively hinged between the lifting seat 10 and the fixing block 14, and the follower transmission rod 13 is respectively hinged between the fixing seat 11 and the sliding block 15. The upper end of the lead screw 6 is in transmission connection with the motor.

[0034] As Figure 1 shown in the figure, two motors 9 are provided and can respectively drive the corresponding lead screws 6 to rotate independently. The fixing rod 7 is on the opposite side of the lead screw 6. Thus, during work, one motor works first. Taking the bottom spherical hinge of the adjusting workbench 2 as the adjustment basis, the motor on one side moves up and down, and the fixing rod 7 on the other side moves in the reverse direction due to the lever structure and drives the sliding block 15 to move downward, thereby realizing the adjustment in one direction. After the adjustment is completed, the other motor is started to work, and the other direction is leveled in the same way, thereby realizing the adjustment work of the adjusting workbench 2.

[0035] To ensure the stability of the lead screw 6 and the fixing rod 7, connection seats are arranged at the bottoms of the lead screw 6 and the fixing rod 7. A connecting plate is fixed on the adjusting workbench 2, and the connection seats are fixed on the connecting plate to stabilize the lead screw 6 and the fixing rod 7. At the same time, the connecting plate can be in a cylindrical structure and partially block the area between the adjusting workbench and the base workbench. An upper blocking plate is arranged above the adjusting workbench to block the area above the adjusting workbench.

[0036] An installation seat is arranged on the adjusting workbench 2 (upper blocking plate), and the motor is fixed on the installation seat. A measuring platform is arranged above the adjusting workbench 2, and the distance measuring instrument is fixed on the measuring platform. As can be seen from the above content, the leveling workbench can be adjusted to a horizontal state. By mounting a parallel installation seat on it, the installation seat can be in a horizontal state, thereby realizing the leveling work of the distance measuring instrument.

[0037] In order to intuitively obtain the state of the adjustment workbench 2, in this embodiment, a horizontal bubble level corresponding to the lead screw 6 and the fixed rod 7 is provided on the adjustment workbench 2, and the levelness between the lead screw 6 and the fixed rod 7 on the opposite side is judged by the horizontal bubble level. As an implementation method, the state of the horizontal bubble level can be obtained by observation. An operation button is provided on the adjustment workbench 2. The operation button is used to control the forward or reverse rotation of the motor. The horizontal bubble level is exposed to the environment. By observing the horizontal bubble level, corresponding adjustment operations are performed, and the corresponding control button is manually activated to realize the forward or reverse rotation of the motor, so as to perform the corresponding leveling work.

[0038] This embodiment provides a surveying and mapping device that is convenient for leveling. Through a two-stage leveling mechanism and electric control operation, the leveling efficiency and accuracy are significantly improved, and at the same time, the requirements for the construction environment are reduced. It has the following beneficial effects: The present invention adopts a two-stage leveling mechanism. The basic workbench 1 provides a preliminary leveling basis. The leveling workbench is precisely leveled by the lead screw 6 and the motor drive, avoiding the cumbersome operation of frequent adjustment of the traditional triangular bracket. The requirement for initial leveling is relatively low, and stable leveling can be quickly achieved in complex environments such as uneven ground and narrow spaces, expanding the scope of application.

[0039] Embodiment 2 further describes the structure of the horizontal bubble level.

[0040] In this embodiment, the horizontal bubble level is an electronic horizontal bubble level, and the electronic horizontal bubble level usually has an automatic calibration function. When it detects that the bubble deviates from the center, the device will calculate the deviation through a built-in algorithm and generate a calibration signal. The calibration signal can be transmitted to the controller through the output interface of the device (such as USB or Bluetooth). The electronic horizontal bubble level is connected to the controller, and the controller is connected to the motor that controls the lead screw 6 and controls the forward, reverse rotation and the number of rotation turns of the motor.

[0041] Specifically, the electronic horizontal bubble level can be the French EDA bubble level 61R or the French EDA micro-leveling level 65. This structure can be optionally equipped with a frame-shaped or magnetic base. The electronic horizontal bubble level is correspondingly arranged at the center position of the fixed rod 7 and the lead screw 6, and the electronic horizontal bubble level is connected to the controller. The controller controls the working state of the motor according to the received signal, such as the rotation direction and the number of rotation turns.

[0042] Thus, this embodiment can automatically perform the leveling work. Fix the legs on the ground to stabilize the basic workbench 1, or mount the basic workbench 1 on a movable unmanned aerial vehicle or other fixed bases. After the structure is stable, the basic workbench 1 is in a basically horizontal state, and simple measurement can be carried out by visual inspection to reduce the amplitude of leveling and improve the leveling efficiency. That is, the basic workbench 1 first provides a relatively horizontal basis, and then the leveling mechanism performs precise two-stage leveling, and the leveling operation can be realized without manual intervention.

[0043] Traditional leveling relies on manual experience, and the operation is complicated and prone to errors. This embodiment uses a bubble level or an electronic bubble level to monitor the leveling status in real time, and combines the electric control system to automatically adjust the motor and the screw 6, which significantly improves the leveling accuracy and operation efficiency; through electronic control leveling, manual intervention is reduced, the difficulty of operation is reduced, and even non-professionals can quickly complete the leveling work.

[0044] Embodiment 3, this embodiment is aimed at the structure in embodiment 1 and embodiment 2, and further includes a locking mechanism. Structurally, the slider 15 is in a sliding state. In order to improve the stability of the structure and reduce the error caused by the gap in the screw rod 6 itself, this embodiment clamps the slider 15 structure and locks it from both sides to ensure the stability of the structure after leveling.

[0045] Specifically, the locking mechanism includes a locking plate 18, a claw 17 and a locking chuck 20; a slot 16 is provided between the fixed slot and the slide slot, the claw 17 is inserted into the slot 16 and can move in the slot, the locking plate 18 is fixed to the end of the claw 17 and wrapped around the outside of the slider 15, and by moving the claw 17 inward or outward, the locking plate 18 can be driven to press the slider 15 from the outside, or release the slider 15.

[0046] In order to ensure the locking effect, the slider 15 is mounted in the slide groove in this embodiment so that it can move along the slide groove. The outer side of the slider 15 protrudes from the surface of the fixed column 4, and the locking piece 18 is located on the outer side of the slider 15. In order to ensure the tight contact and improve the locking strength, the locking piece 18, the fixed block 14 and the slider 15 are all arc-shaped structures, and the contact surface between the locking piece 18 and the slider 15 is an anti-friction surface.

[0047] In order to drive the claw 17 to translate synchronously, this embodiment provides a chuck structure, the locking chuck 20 is mounted on the bottom of the fixed column 4, and a rotatable spiral drive disk 201 is arranged inside the chuck 20, the bottom of the claw 17 is connected to the spiral drive disk, so that the claw 17 moves synchronously inward or outward under the action of the locking chuck 20, and a driving shaft 203 is arranged on the locking chuck 20, and the driving shaft 203 is connected to the spiral drive disk 201 through a gear (the spiral drive disk 201 is provided with a gear ring 202, and the gear on the driving shaft is meshed with the gear ring 202), and the outer side thereof is connected to the locking motor 204. The slider 15 is stabilized by the locking mechanism to ensure that the workbench remains in a horizontal state after leveling, thereby avoiding errors caused by external vibrations or equipment gaps and improving measurement stability.

[0048] On the basis of Embodiment 2, the locking motor can be connected to the controller. After the electronic level bubble instrument issues a leveling completion instruction, the controller controls the locking motor to work and locks the slider 15. In this embodiment, the electronic level bubble instrument is linked with the controller to achieve automatic leveling and locking, further improving the intelligent level of the device and providing convenience for project cost assessment personnel.

[0049] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is to use the basic workbench for preliminary stable support and rough leveling, use the first leveling mechanism and the second leveling mechanism for precise leveling, and at the same time provide a horizontal reference with the help of the bubble instrument and drive the first leveling mechanism and the second leveling mechanism to perform automatic leveling work. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A surveying and mapping device that is convenient for leveling, characterized in that: It includes an adjustment workbench, a base workbench, a first leveling mechanism and a second leveling mechanism. The first leveling mechanism and the second leveling mechanism are cross - arranged between the adjustment workbench and the base workbench to level the adjustment workbench by using the first leveling mechanism and the second leveling mechanism on the basis of the base workbench. Both the first leveling mechanism and the second leveling mechanism include a fixed column, a lead screw, a fixed rod, a fixed seat, a lifting seat, a slider, a driving rod and a follower rod. The fixed column is fixed on the base workbench, and the center of the adjustment workbench is connected to the fixed column through a ball seat. A fixed groove and a sliding groove are provided on the side surface of the fixed column, and a fixed block and a slider are respectively arranged in the fixed groove and the sliding groove. The lead screw and the fixed rod are arranged on the adjustment workbench through ball hinges and are symmetric with respect to the center. A fixed seat is provided at the bottom of the fixed rod. The lifting seat is threadedly connected to the lead screw. The two ends of the driving rod are respectively hinged between the lifting seat and the fixed block, and the follower rod is respectively hinged between the fixed seat and the slider. The upper end of the lead screw is in transmission connection with a motor.

2. The surveying and mapping device convenient for leveling according to claim 1, characterized in that: The first leveling mechanism and the second leveling mechanism are vertically arranged, and the lead screw and the fixed rod are arranged on a circumference with the ball hinge center of the adjustment workbench as the center of the circle.

3. The surveying and mapping device convenient for leveling according to claim 1, characterized in that: It further includes a locking mechanism. The locking mechanism includes a locking piece, a claw and a locking chuck. A clamping groove is provided between the fixed groove and the sliding groove. The claw is sleeved in the clamping groove. The locking chuck is sleeved at the bottom of the fixed column, and a rotatable spiral driving disk is arranged inside it. The bottom of the claw is in transmission connection with the spiral driving disk to make the claw move inwards or outwards synchronously under the action of the locking chuck. A driving shaft is provided on the locking chuck. The driving shaft is in transmission connection with the spiral driving disk through a gear and is connected to a locking motor on its outside. The locking piece is fixed at the end of the claw and covers the outside of the slider.

4. The surveying and mapping device facilitating leveling according to claim 3, wherein: The slider is sleeved in the sliding groove so that it can move along the sliding groove. The outside of the slider protrudes from the surface of the fixed column, and the locking piece is on the outside of the slider.

5. The surveying and mapping device convenient for leveling according to claim 3, wherein: The locking piece, the fixed block and the slider are all arc - shaped structures, and the contact surface between the locking piece and the slider is an anti - friction surface.

6. The surveying and mapping device convenient for leveling according to claim 1, wherein: A connecting seat is provided at the bottom of the lead screw. A connecting plate is fixed on the adjustment workbench, and the connecting seat is fixed on the connecting plate to stabilize the lead screw.

7. The surveying and mapping device convenient for leveling according to claim 1, characterized in that: An installation seat is provided on the adjustment workbench, and the motor is fixed on the installation seat. A measuring platform is provided above the adjustment workbench, and a rangefinder is fixed on the measuring platform.

8. The surveying and mapping device facilitating leveling according to claim 1, characterized in that: Leveling bubble gauges corresponding to the lead screw and the fixed rod are provided on the adjustment workbench to judge the levelness between the lead screw and the opposite fixed rod through the leveling bubble gauges.

9. The surveying and mapping device convenient for leveling according to claim 8, wherein: Operation buttons are provided on the adjustment workbench. The operation buttons are used to control the forward or reverse rotation of the motor. The leveling bubble gauges are exposed to the environment, and corresponding adjustment operations are carried out by observing the leveling bubble gauges.

10. The surveying and mapping device facilitating leveling according to claim 8, characterized in that: The leveling bubble gauges are electronic leveling bubble gauges. The electronic leveling bubble gauges are connected to a controller, and the controller is connected to the motor controlling the lead screw and controls the forward rotation, reverse rotation and number of rotation turns of the motor.

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