Gradient and flatness surveying and mapping equipment for land engineering

Abstract

The invention relates to the technical field of engineering surveying and mapping, in particular to land engineering slope and flatness surveying and mapping equipment which comprises a supporting frame and supporting columns fixedly installed on the supporting frame and symmetrically arranged, and longitudinal supporting wheels are rotationally installed at the ends of the supporting columns; the deflection mechanism is arranged on the supporting frame, a rotating plate is connected to the deflection mechanism, transverse supporting wheels which are symmetrically arranged are rotationally installed on the rotating plate, and follow-up reset mechanisms which are symmetrically arranged are arranged on the deflection mechanism; the deflection mechanism can drive the transverse supporting wheel and the follow-up reset mechanism to move through the rotating plate. The deflection mechanism is arranged on the rotating plate, the elastic supporting mechanism is arranged on the rotating plate, a plurality of limiting wheels distributed at equal intervals are connected to the elastic supporting mechanism, and the rotating plate is provided with a distance regulation and control mechanism connected with the elastic supporting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of engineering surveying and mapping, in particular to a land engineering slope and flatness surveying and mapping device. Background Art

[0002] Land engineering slope and flatness detection is an indispensable part of geographic surveying and engineering construction, and its accuracy is directly related to the quality and safety of the project.

[0003] Correctly testing the slope and flatness of land projects can avoid unnecessary cost increases. If the slope is not accurately tested during the construction process, it will lead to geological disasters such as landslides in the later stage, and the cost of governance will be very high.

[0004] Existing slope and flatness detection is usually carried out by corresponding slope detectors or flatness detectors. When detecting along the ground to be surveyed, usually only a single-dimensional detection can be performed along its direction of travel, which leads to the problem of a small detection range and inaccurate detection results. Summary of the invention

[0005] The purpose of the present invention is to provide a land engineering slope and flatness surveying and mapping device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A land engineering slope and flatness surveying and mapping device, comprising: A support frame, and support columns fixedly mounted on the support frame and symmetrically arranged, longitudinal support wheels being rotatably mounted on the ends of the support columns, and a plumb measuring plate being suspended on the support frame; Also includes: A deflection mechanism is arranged on the support frame, the deflection mechanism is connected to a rotating plate, a symmetrically arranged transverse support wheel is rotatably mounted on the rotating plate, a symmetrically arranged follower reset mechanism is arranged on the deflection mechanism, and the deflection mechanism can drive the transverse support wheel and the follower reset mechanism to move through the rotating plate; An elastic support mechanism is arranged on the rotating plate, and a plurality of equally distributed limiting wheels are connected to the elastic support mechanism. A spacing adjustment mechanism connected to the elastic support mechanism is arranged on the rotating plate, and the spacing adjustment mechanism can drive the limiting wheels to move toward or away from each other through the elastic support mechanism.

[0007] As a further solution of the present invention: the deflection mechanism includes a fixed sleeve fixedly installed on the support frame and symmetrically arranged, a movable plate is slidably installed in the fixed sleeve, a rotating rod is rotatably installed on the movable plate, the rotating rod is fixedly connected to the rotating plate, and a limiting assembly connected to the movable plate is arranged on the fixed sleeve.

[0008] As a further solution of the present invention: the limiting assembly includes a slot provided on the side wall of the fixed sleeve, a first protrusion slidably connected to the slot is fixed on the movable plate, and a first spring abutting against the movable plate is fixed in the fixed sleeve.

[0009] As a further solution of the present invention: the follow-up reset mechanism includes a guide column fixedly mounted on the fixed sleeve, a fixed plate rotatably connected to the rotating rod is fixed to the end of the guide column, a movable ring slidably connected to the rotating rod is slidably mounted on the guide column, and a guide assembly connected to the movable ring is provided on the rotating rod.

[0010] As a further solution of the present invention: the guide assembly includes a spiral groove opened on the outer wall of the circumference of the rotating rod and symmetrically arranged, a limit block is fixed in the movable ring and slidably engaged with the spiral groove, a second spring and a third spring are sleeved on the rotating rod, two ends of the second spring are respectively abutted against the movable ring and the fixed sleeve, and two ends of the third spring are respectively abutted against the movable ring and the fixed plate.

[0011] As a further solution of the present invention: the elastic support mechanism includes a sliding groove opened on the rotating plate and symmetrically arranged, a plurality of sliding blocks equidistantly distributed are slidably installed in the sliding groove, a supporting sleeve is fixed on the sliding block, and a driven component is arranged on the supporting sleeve.

[0012] As a further solution of the present invention: the driven component includes a movable rod slidably installed in the supporting sleeve, the movable rod is rotatably connected to the limiting wheel, a vertical groove is opened on the circumferential outer wall of the supporting sleeve, a second protrusion is fixed on the movable rod and slidably engaged with the vertical groove, a fourth spring is sleeved on the supporting sleeve and the movable rod, and both ends of the fourth spring are respectively abutted against the sliding block and the limiting wheel.

[0013] As a further solution of the present invention: the spacing adjustment mechanism includes a guide rail fixedly mounted on the rotating plate and symmetrically arranged, a sliding plate is slidably mounted in the guide rail, a cylinder fixedly connected to the sliding plate is fixed on the rotating plate, and a guide assembly connected to the sliding block is arranged on the sliding plate.

[0014] As a further solution of the present invention: the guide assembly includes a plurality of oblique grooves which are opened on the sliding plate and are symmetrically arranged, and a limiting column which is slidably connected to the oblique grooves is fixed on the sliding block.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application can detect the slope of a ground with a slope, as well as the horizontal and vertical flatness through the cooperation of the deflection mechanism and the elastic support mechanism. Specifically, when the present device is placed on the ground, the longitudinal support wheels will abut against the ground, so that the support frame and the ground remain parallel. At the same time, under the action of the deflection mechanism and the follow-up reset mechanism, the horizontal support wheels are controlled to abut against the ground through the rotating plate. If the flatness of the ground with a slope is consistent, the rotating plate and the support frame remain parallel. If the flatness of the ground with a slope is inconsistent, the height of the two horizontal support wheels on the ground will change, and the first spring will change the height of the two horizontal support wheels on the ground. Under the action of the fourth spring, the two lateral support wheels will always keep in contact with the uneven parts of the ground. Therefore, the angle between the rotating plate and the support frame will change. Under the action of the plumb measuring plate, the lateral flatness of the ground is detected. If the longitudinal flatness of the ground remains consistent, it means that the multiple limit wheels and the lateral support wheels will always remain in the same horizontal plane. If the longitudinal flatness of the ground is inconsistent, under the action of the fourth spring, the limit wheels on the corresponding protruding or concave ground will be displaced accordingly, so that the limit wheels are always in contact with the ground. Under the action of the infrared sensor, the displacement change of the limit wheels can be monitored in real time to detect the longitudinal flatness of the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of an embodiment of land engineering slope and flatness surveying and mapping equipment.

[0017] Figure 2 This is a structural schematic diagram of another angle in an embodiment of a land engineering slope and flatness surveying and mapping device.

[0018] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 4 The present invention is a schematic diagram of the connection relationship among a rotating plate, an elastic supporting mechanism and a limiting wheel in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0020] Figure 5 The present invention is a schematic structural diagram of a deflection mechanism and a follow-up reset mechanism in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0021] Figure 6The present invention is a schematic diagram of a half-section structure of a deflection mechanism and a follow-up reset mechanism in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0022] Figure 7 The present invention is a schematic diagram of the exploded structure of a deflection mechanism and a follow-up reset mechanism in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0023] Figure 8 The present invention is a schematic structural diagram of an elastic support mechanism in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0024] Fig. 9 The present invention is a schematic diagram of the exploded structure of an elastic support mechanism in one embodiment of a land engineering slope and flatness surveying and mapping device.

[0025] In the figure: 1, support frame; 2, support column; 3, longitudinal support wheel; 4, fixed sleeve; 401, slot; 5, movable plate; 501, first protrusion; 6, first spring; 7, rotating rod; 701, spiral groove; 8, fixed plate; 9, guide column; 10, movable ring; 1001, limit block; 11, second spring; 12, third spring; 13, rotating plate; 1301, slide groove; 14, transverse support wheel; 15, sliding block; 16, support sleeve; 1601, vertical groove; 17, movable rod; 1701, second protrusion; 18, limit wheel; 19, fourth spring; 20, limit column; 21, guide rail; 22, sliding plate; 23, inclined groove; 24, cylinder; 25, plumb measuring plate; 26, protractor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0028] See also Figure 1 to Figure 9 In an embodiment of the present invention, a land engineering slope and flatness surveying and mapping device includes: A support frame 1, and support columns 2 fixedly mounted on the support frame 1 and symmetrically arranged, longitudinal support wheels 3 being rotatably mounted on the ends of the support columns 2, and a plumb measuring plate 25 being suspended on the support frame 1; Also includes: A deflection mechanism is arranged on the support frame 1, the deflection mechanism is connected to a rotating plate 13, a symmetrically arranged transverse support wheel 14 is rotatably mounted on the rotating plate 13, and a symmetrically arranged follower reset mechanism is arranged on the deflection mechanism, and the deflection mechanism can drive the transverse support wheel 14 and the follower reset mechanism to move through the rotating plate 13; An elastic support mechanism is arranged on the rotating plate 13, and a plurality of equally distributed limiting wheels 18 are connected to the elastic support mechanism. A spacing adjustment mechanism connected to the elastic support mechanism is arranged on the rotating plate 13, and the spacing adjustment mechanism can drive the limiting wheels 18 to move toward or away from each other through the elastic support mechanism.

[0029] Specifically, when measuring the slope and flatness in land engineering, it is necessary to measure the horizontal and vertical flatness simultaneously to ensure that when measuring the slope, the slope direction can also meet the flatness requirements. The device can be placed at the position to be measured so that the longitudinal support wheel 3 is in contact with the ground. At the same time, under the action of the yaw mechanism and the follow-up reset mechanism, the rotating plate 13 is driven to move, thereby driving the horizontal support wheel 14 and the elastic support mechanism to move. If the flatness along the length direction of the measured slope remains unchanged, the angle between the rotating plate 13 and the support frame 1 will not change. When the device moves along the length direction of the slope, the angle between the support column 2 and the plumb measuring plate 25 is the inclination angle of the slope. Under the action of the elastic support mechanism, the flatness of the slope in the longitudinal direction can be measured at multiple points. If the flatness along the length direction of the measured slope is not uniform, the swing mechanism and the follow-up reset mechanism will cause the rotating plate 13 to rotate relative to the support frame 1. The swing angle of the rotating plate 13 is the change in the flatness of the slope in the transverse direction. The accuracy of slope and flatness measurement can be ensured through dual measurements in the longitudinal and transverse directions.

[0030] See also Figure 1 , Figure 2 , Figure 5-Figure 7The deflection mechanism includes a fixed sleeve 4 which is fixedly mounted on the support frame 1 and is symmetrically arranged, a movable plate 5 is slidably mounted in the fixed sleeve 4, a rotating rod 7 is rotatably mounted on the movable plate 5, the rotating rod 7 is fixedly connected to the rotating plate 13, a limiting component connected to the movable plate 5 is provided on the fixed sleeve 4, wherein the limiting component includes a slot 401 provided on the side wall of the fixed sleeve 4, a first protrusion 501 which is slidably connected to the slot 401 is fixed on the movable plate 5, and a first spring 6 which abuts against the movable plate 5 is fixed in the fixed sleeve 4.

[0031] In detail, a scale is formed on the plumb measuring plate 25. When the device is placed on the ground with a slope to be measured, the support frame 1 will be tilted at a certain angle, and the plumb measuring plate 25 is only affected by gravity and always maintains a vertical state. Therefore, a certain angle will be formed between the plumb measuring plate 25 and the support column 2. At this time, the scale on the plumb measuring plate 25 corresponding to the support column 2 is the inclination angle of the required measured slope. Specifically, when measuring the slope, the device can be placed on the ground to be measured, and the longitudinal support wheel 3 is made to fit the ground. Under the action of the longitudinal support wheel 3, the support column 2 is kept vertical to the ground with a slope, and the support frame 1 is kept parallel to the ground. At the same time, since the first spring 6 is in a compressed state, The movable plate 5 has a tendency to move away from the support frame 1, so that the rotating plate 13 controlled by the rotating rod 7 also has a tendency to move away from the support frame 1. Therefore, the lateral support wheel 14 will abut against the ground. If the flatness of the ground with a slope is consistent, the rotating plate 13 and the support frame 1 remain parallel. If the flatness of the ground with a slope is inconsistent, the height of the two lateral support wheels 14 above the ground will change. Under the action of the first spring 6, the two lateral support wheels 14 will always remain in contact with the uneven part of the ground. Therefore, the angle between the rotating plate 13 and the support frame 1 will change, so that the rotating rod 7 rotates a certain angle to drive the follow-up reset mechanism to move.

[0032] Preferably, a protractor 26 is installed on the movable plate 5. If the flatness of the slope to be measured in the lateral direction remains consistent, under the action of the follow-up reset mechanism, the movable plate 5 and the rotating plate 13 will always remain in a vertical state. If the flatness of the slope to be measured in the lateral direction is inconsistent, the protractor 26 can be used to detect the change in the angle between the movable plate 5 and the rotating plate 13, thereby measuring the change in the flatness of the slope.

[0033] See also Figure 1 , Figure 2 , Figure 5-Figure 7The follow-up reset mechanism includes a guide column 9 fixedly mounted on the fixed sleeve 4, a fixed plate 8 rotatably connected to the rotating rod 7 is fixed at the end of the guide column 9, a movable ring 10 slidably connected to the rotating rod 7 is slidably mounted on the guide column 9, and a guide component connected to the movable ring 10 is provided on the rotating rod 7, wherein the guide component includes a spiral groove 701 symmetrically arranged on the outer wall of the circumference of the rotating rod 7, a limit block 1001 slidably engaged with the spiral groove 701 is fixed in the movable ring 10, a second spring 11 and a third spring 12 are sleeved on the rotating rod 7, the two ends of the second spring 11 are respectively abutted against the movable ring 10 and the fixed sleeve 4, and the two ends of the third spring 12 are respectively abutted against the movable ring 10 and the fixed plate 8.

[0034] It should be noted that, in the initial state, the second spring 11 and the third spring 12 are both in a compressed state, and the thrusts provided to the movable ring 10 are the same. Therefore, the thrusts received by the movable ring 10 cancel each other out, so that the position of the movable ring 10 on the rotating rod 7 remains unchanged, so that the position of the limit block 1001 in the spiral groove 701 remains unchanged. Under the action of the limit block 1001 and the spiral groove 701, it is ensured that when the rotating rod 7 is not subjected to external force, the rotating plate 13 and the movable plate 5 always maintain a vertical state. If the slope to be measured is inconsistent in flatness in the lateral direction, under the action of the first spring 6, the position of the movable plate 5 will change accordingly, so that the two lateral support wheels 14 are always aligned with the movable plate 5. The rotating plate 13 abuts against the ground with a slope, so the rotating plate 13 will deflect to a certain angle, and drive the spiral groove 701 to move through the rotating rod 7, so as to drive the movable ring 10 to move through the limit block 1001. The movable ring 10 will move along the length direction of the guide column 9 according to the rotation angle of the rotating rod 7, and move in the direction close to or away from the movable plate 5, so as to perform a compression action on one of the second spring 11 and the third spring 12, and a release action on the other. When the detection is completed, the device can be removed from the ground, and under the action of the second spring 11 and the third spring 12, the movable ring 10 is controlled to reset again, so that the rotating plate 13 deflects back to a perpendicular state to the movable plate 5 again.

[0035] See also Figure 1-Figure 4 , Figure 8 , Fig. 9The elastic support mechanism includes a slide groove 1301 which is opened on the rotating plate 13 and is symmetrically arranged. A plurality of sliding blocks 15 which are equidistantly distributed are slidably installed in the slide groove 1301. A supporting sleeve 16 is fixed on the sliding block 15. A driven component is arranged on the supporting sleeve 16, wherein the driven component includes a movable rod 17 which is slidably installed in the supporting sleeve 16. The movable rod 17 is rotatably connected with the limiting wheel 18. A vertical groove 1601 is opened on the circumferential outer wall of the supporting sleeve 16. A second protrusion 1701 which is slidably engaged with the vertical groove 1601 is fixed on the movable rod 17. A fourth spring 19 is sleeved on the supporting sleeve 16 and the movable rod 17. The two ends of the fourth spring 19 are respectively in contact with the sliding block 15 and the limiting wheel 18.

[0036] Furthermore, an infrared sensor is installed on the rotating plate 13, which can measure the distance between the limiting wheel 18 and the infrared sensor. In the initial state, the fourth spring 19 is in a compressed state, so that the movable rod 17 is located at the end of the stroke away from the supporting sleeve 16, so that the second protrusion 1701 is located at the end of the stroke on one side of the vertical groove 1601. At this time, the distance between the limiting wheel 18 and the rotating plate 13 is greater than the distance between the transverse supporting wheel 14 and the rotating plate 13. When the device is placed on a sloped ground, since the gravity of the device is greater than the elastic force of the fourth spring 19, the limiting wheel 18 will move toward the rotating plate 13 when it contacts the ground, and control the movable rod 17 to enter the supporting sleeve 16, so that the fourth spring The spring 19 is compressed until the limiting wheel 18 is located at the same horizontal plane as the lateral support wheel 14. At this time, the device can be controlled to move along the inclined direction of the sloped ground. If the longitudinal flatness of the ground remains consistent, it means that the multiple limiting wheels 18 and the lateral support wheel 14 will always remain in the same horizontal plane. If the longitudinal flatness of the ground is inconsistent, under the action of the fourth spring 19, the limiting wheels 18 on the corresponding protruding or recessed ground will be displaced accordingly, so that the limiting wheels 18 are always in contact with the ground. Under the action of the infrared sensor, the displacement change of the limiting wheel 18 can be monitored in real time to detect the longitudinal flatness of the ground. Among them, the infrared sensor is an application of the prior art and is not described in detail in this application.

[0037] See also Figure 1-Figure 4 , Figure 8 , Fig. 9The spacing adjustment mechanism includes a guide rail 21 fixedly mounted on the rotating plate 13 and symmetrically arranged, a sliding plate 22 is slidably installed in the guide rail 21, a cylinder 24 fixedly connected to the sliding plate 22 is fixed on the rotating plate 13, and a guide assembly connected to the sliding block 15 is arranged on the sliding plate 22, wherein the guide assembly includes a plurality of inclined grooves 23 symmetrically arranged and opened on the sliding plate 22, and a limiting column 20 slidably connected to the inclined groove 23 is fixed on the sliding block 15.

[0038] To go further, when detecting the longitudinal flatness of a sloping ground, it is necessary to adjust the spacing between the limit wheels 18 according to the required detection range. In the initial state, under the action of the cylinder 24, the sliding plate 22 is located at the end of the stroke toward the rotating rod 7, so that the limit column 20 is located at the end of the stroke on the side away from the inclined groove 23. At this time, the range of the limit wheel 18 for detecting the longitudinal flatness of the ground is the largest. When it is necessary to reduce the detection range, under the action of the cylinder 24, the sliding plate 22 is pushed to move along the length direction of the guide rail 21, thereby driving the movement of the inclined groove 23. Under the action of the inclined groove 23 and the limit column 20, the multiple sliding blocks 15 move in a direction close to each other, thereby reducing the spacing between the limit wheels 18 and reducing the detection range of the ground.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A land engineering slope and flatness surveying and mapping device, comprising: A support frame (1), and support columns (2) fixedly mounted on the support frame (1) and symmetrically arranged, the ends of the support columns (2) being rotatably mounted with longitudinal support wheels (3), and a plumb measuring plate (25) being suspended on the support frame (1); It is characterized by further comprising: A deflection mechanism is arranged on the support frame (1), the deflection mechanism is connected to a rotating plate (13), a symmetrically arranged transverse support wheel (14) is rotatably mounted on the rotating plate (13), the deflection mechanism is provided with a symmetrically arranged follower reset mechanism, and the deflection mechanism can drive the transverse support wheel (14) and the follower reset mechanism to move through the rotating plate (13); An elastic support mechanism is arranged on the rotating plate (13); a plurality of equally spaced limiting wheels (18) are connected to the elastic support mechanism; a spacing control mechanism connected to the elastic support mechanism is arranged on the rotating plate (13); the spacing control mechanism can drive the limiting wheels (18) to move in a direction of approaching or moving away from each other through the elastic support mechanism.

2. A land engineering slope and flatness surveying and mapping device according to claim 1, characterized in that: The deflection mechanism comprises a fixed sleeve (4) fixedly mounted on the support frame (1) and symmetrically arranged, a movable plate (5) being slidably mounted in the fixed sleeve (4), a rotating rod (7) being rotatably mounted on the movable plate (5), the rotating rod (7) being fixedly connected to the rotating plate (13), and a limit assembly connected to the movable plate (5) being arranged on the fixed sleeve (4).

3. A land engineering slope and flatness surveying and mapping device according to claim 2, characterized in that: The limiting assembly comprises a slot (401) provided on a side wall of the fixed sleeve (4); a first protrusion (501) slidably connected to the slot (401) is fixed on the movable plate (5); and a first spring (6) abutting against the movable plate (5) is fixed in the fixed sleeve (4).

4. A land engineering slope and flatness surveying and mapping device according to claim 2, characterized in that: The follow-up reset mechanism comprises a guide column (9) fixedly mounted on the fixed sleeve (4); a fixed plate (8) rotatably connected to the rotating rod (7) is fixed to the end of the guide column (9); a movable ring (10) slidably connected to the rotating rod (7) is slidably mounted on the guide column (9); and a guide assembly connected to the movable ring (10) is provided on the rotating rod (7).

5. A land engineering slope and flatness surveying and mapping device according to claim 4, characterized in that: The guide assembly comprises a spiral groove (701) which is opened on the outer wall of the circumference of the rotating rod (7) and is symmetrically arranged. A limit block (1001) which is slidably engaged with the spiral groove (701) is fixed in the movable ring (10). A second spring (11) and a third spring (12) are sleeved on the rotating rod (7). The two ends of the second spring (11) are respectively in contact with the movable ring (10) and the fixed sleeve (4), and the two ends of the third spring (12) are respectively in contact with the movable ring (10) and the fixed plate (8).

6. A land engineering slope and flatness surveying and mapping device according to claim 1, characterized in that: The elastic support mechanism comprises a slide groove (1301) which is opened on the rotating plate (13) and is symmetrically arranged, a plurality of sliding blocks (15) which are equidistantly distributed are slidably installed in the slide groove (1301), a support sleeve (16) is fixed on the sliding block (15), and a driven component is arranged on the support sleeve (16).

7. A land engineering slope and flatness surveying and mapping device according to claim 6, characterized in that: The driven assembly comprises a movable rod (17) slidably mounted in the support sleeve (16), the movable rod (17) being rotatably connected to the limiting wheel (18), a vertical groove (1601) being provided on the circumferential outer wall of the support sleeve (16), a second protrusion (1701) being slidably engaged with the vertical groove (1601) being fixed on the movable rod (17), a fourth spring (19) being sleeved on the support sleeve (16) and the movable rod (17), two ends of the fourth spring (19) respectively abutting against the sliding block (15) and the limiting wheel (18).

8. The land engineering slope and flatness surveying and mapping device according to claim 6, characterized in that: The spacing adjustment mechanism comprises a guide rail (21) fixedly mounted on the rotating plate (13) and symmetrically arranged, a sliding plate (22) being slidably mounted in the guide rail (21), a cylinder (24) fixedly connected to the sliding plate (22) being fixed on the rotating plate (13), and a guide assembly connected to the sliding block (15) being arranged on the sliding plate (22).

9. A land engineering slope and flatness surveying and mapping device according to claim 8, characterized in that: The guide assembly comprises a plurality of inclined grooves (23) which are opened on the sliding plate (22) and are symmetrically arranged, and a limiting column (20) which is slidably connected to the inclined grooves (23) is fixed on the sliding block (15).

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