Land gradient measuring equipment

Abstract

The invention discloses land gradient measuring equipment, and relates to the technical field of land gradient detection.The land gradient measuring equipment comprises a shell, a bearing seat is fixedly connected to the inner wall of one side of the shell, a second rotating column is fixedly connected to the circumferential inner wall of the bearing seat, and a pointer is fixedly connected to one end of the second rotating column; the inner wall of one side of the shell is fixedly connected with a scale plate, and the pointer is located on one side of the scale plate. The interior of the housing is provided with a speed reduction assembly which is used for enabling the pointer to stop rapidly. The bottom of the shell is provided with a supporting assembly which can be conveniently and flatly arranged on a soil slope body. The overall operation is convenient and fast, the adaptability is high, the measurement efficiency is greatly improved through the multi-deceleration design, the accuracy of the measurement result is guaranteed by means of structures such as bubble calibration and mechanical clamping stagnation prevention, and the device and the method are suitable for various land slope detection scenes.

Description

Technical Field

[0001] This invention relates to the field of land slope detection technology, and more specifically, to a land slope measurement device. Background Technology

[0002] Land surveying is an essential mapping process in land reserve and land construction. Slope is an important measurement item in land surveying, used to measure the steepness of the land surface or terrain. The magnitude of the slope has a significant impact on land use and development.

[0003] A search revealed Chinese invention patent CN119124111B, which discloses a slope measuring device for land surveying. The device includes a base plate, a support plate fixedly mounted on the base plate, a column fixedly mounted on the support plate, a handheld part fixedly connected to the column, a first connecting plate fixedly connected to the side of the support plate, the first connecting plate being fixedly connected to an electric actuator, a second connecting plate mounted on the telescopic end of the electric actuator, and the second connecting plate being fixedly connected to the bottom surface of a first housing. The first housing is fitted to the support plate, and a recording paper and a clamping mechanism are disposed inside the first housing. A rotating shaft is connected to a bearing inside the support plate, and the rotating shaft is coaxially fixed to a circular tube. A counterweight ball is connected to the circular tube, and a recording mechanism for recording the slope on the recording paper is disposed on the circular tube. By changing the position of the recording paper through the electric actuator and recording the slope data through the recording mechanism, the device effectively saves manpower and time and improves measurement efficiency.

[0004] The existing technology reveals the following shortcomings of the aforementioned patent: During measurement, the pointer of this slope measuring device oscillates back and forth for a period of time due to gravity, and the lack of an effective damping and deceleration structure results in slow pointer decay, often requiring a considerable waiting time to stabilize. During this period, workers cannot quickly and accurately read the readings, affecting not only the efficiency of slope measurement but also potentially causing reading deviations due to slight device displacement or accidental human intervention. Furthermore, in scenarios requiring continuous multi-point measurements, the frequent oscillations of the pointer significantly increase the overall operation time, reducing the efficiency of slope measurement. Therefore, a slope measuring device is urgently needed to solve these problems. Summary of the Invention

[0005] In view of the problems in related technologies, the present invention proposes a land slope measurement device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] The technical solution of this invention is implemented as follows: A land slope measuring device includes a housing, a bearing seat fixedly connected to one inner wall of the housing, a second rotating column fixedly connected to the inner circumferential wall of the bearing seat, an indicator needle fixedly connected to one end of the second rotating column, and a scale plate fixedly connected to one inner wall of the housing, with the indicator needle located on one side of the scale plate. The housing is equipped with a deceleration assembly for rapidly stopping the indicator needle; The bottom of the shell is provided with a support component to facilitate its placement on the earthen slope.

[0007] Preferably, the deceleration assembly includes a pendulum fixedly connected to the outer circumference of the second rotating column. A connecting seat is fixedly connected to one end of the pendulum away from the second rotating column. A bent column is fixedly connected to the outer circumference of the connecting seat. A horizontal tube is fixedly connected to the other end of the bent column. The horizontal tube is filled with colored ethanol. Two circular indicator lines are provided on the outer circumference of the horizontal tube. An air bubble is provided in the area between the two circular indicator lines inside the horizontal tube. A spherical shell is fixedly connected to the outer circumference of the horizontal tube and communicates with the horizontal tube. A fixed ball is provided inside the spherical shell. A first rotating column is fixedly connected to the outer circumference of the fixed ball. A movable rod is rotatably connected to one end of the first rotating column extending outside the spherical shell. A connecting rod is rotatably connected to the end of the movable rod away from the first rotating column. A rotating seat is rotatably connected to the end of the connecting rod away from the movable rod. A gear disk is fixedly connected to one end of the rotating seat. A toothed plate meshes with the outer circumference of the gear disk.

[0008] Preferably, the toothed plate has a circular cross-section, the center of the toothed plate coincides with the axis of the second rotating column, both ends of the toothed plate are fixedly connected to the inner walls of both sides of the housing, and both outer walls of the toothed plate are fixedly connected with protective plates to ensure stable meshing of the gear disc.

[0009] Preferably, the outer walls of both sides of the movable rod are fixedly connected with side baffles for limiting the swing angle of the connecting rod. The two side baffles are symmetrically arranged on both sides of the connecting rod, and the side baffles are arranged perpendicular to the movable rod.

[0010] Preferably, the outer wall of the fixed ball is provided with three flow-blocking holes, which are respectively opened along the X-axis, Y-axis and Z-axis of the fixed ball, and the channels of the flow-blocking holes have a spiral structure.

[0011] Preferably, a mounting groove is provided on one side of the outer wall of the housing, and a transparent plate is fixedly connected in the mounting groove by bolts.

[0012] Preferably, a through hole is provided on one side of the scale plate, and the second rotating post passes through the inside of the through hole, wherein the diameter of the second rotating post is smaller than the inner diameter of the through hole.

[0013] Preferably, the support assembly includes a square tube fixedly connected to the outer wall of the bottom of the housing, with extension tubes inserted at both ends of the square tube, a positioning assembly for storing and locking the extension tubes at the top of the square tube, and a handle fixedly connected to the outer wall of the top of the square tube.

[0014] Preferably, the inner walls of both sides of the square tube are provided with sliding grooves, and a slider is slidably connected inside the sliding groove. The slider has a T-shaped cross-section, and one end of the slider located inside the square tube is fixedly connected to the outer wall of one side of the extension tube.

[0015] Preferably, the positioning component includes a fixed cylinder fixedly connected to the top outer wall of the square tube, a circular plate slidably connected inside the fixed cylinder, a spring fixedly connected to the top outer wall of the circular plate, the other end of the spring fixedly connected to the top inner wall of the fixed cylinder, a locking pin fixedly connected to the circumferential inner wall of the circular plate, a pull ring fixedly connected to one end of the locking pin passing through the top of the fixed cylinder, a locking hole opened at the top of the extension tube, and the end of the locking pin away from the pull ring being engaged inside the locking hole.

[0016] The beneficial effects of this invention are: This invention provides a land slope measurement device. Through a deceleration assembly, as the horizontal tube reciprocates under gravity along with the pendulum column, a gear disk on one side also swings. During this swing, the gear disk meshes with a toothed plate, causing it to rotate simultaneously. This rotation drives the rotating base, connecting rod, movable rod, and first rotating column to rotate together. When the first rotating column rotates, it causes a fixed ball at one end to perform circular motion. As the fixed ball rotates within the ethanol liquid, it consumes a significant amount of the kinetic energy generated by the horizontal tube's swing. Furthermore, the spiral flow-blocking holes on the fixed sphere extend the flow path of the liquid inside the sphere. This further increases the contact area between the liquid and the hole wall, resulting in greater energy loss (damping) from viscous shear. This quickly reduces the oscillation amplitude of the indicator needle, causing it to stop rapidly. This effectively solves the problem of low reading efficiency caused by the reciprocating oscillation of the pointer in traditional equipment. Additionally, three damping holes are provided on the fixed sphere along the X, Y, and Z axes, enabling omnidirectional damping of the ethanol liquid in three-dimensional space. Regardless of the direction the fixed sphere rotates, the liquid can pass through the corresponding spiral flow-blocking holes. This design generates stable damping, ensuring uniform and efficient deceleration and avoiding stopping delays caused by insufficient damping in one direction. Furthermore, the spiral streamlined design guides smooth liquid flow, reducing turbulence and eddies, and preventing interference with the bubbles in the upper middle layer of the horizontal tube. This ensures the bubbles remain stable between the two circular indicator lines, providing a precise horizontal reference for subsequent slope measurements. Simultaneously, during the oscillating engagement of the gear disc and toothed plate, the protective plates on both sides of the toothed plate prevent the gear disc from disengaging from the engagement trajectory, ensuring the stability of the transmission between the gear disc and toothed plate. Additionally, when the indicator... When the indicator needle is about to stop, the rotation and bending between the connecting rod and the movable rod can dynamically compensate for the jamming problem that may occur when the gear disk and the toothed plate are meshing, ensuring that the indicator needle can ultimately be accurately in a vertically downward state. This avoids measurement errors caused by mechanical jamming. Furthermore, the side baffles on both sides of the movable rod can prevent the bending range between the connecting rod and the movable rod from being too large, and can also provide rigid support when the movable rod and the connecting rod are bent. This ensures that the gear disk and the toothed plate always maintain a stable meshing state, and will not loosen or shift due to bending force, further ensuring the continuity and reliability of the speed reduction transmission.

[0017] This invention provides a land slope measurement device. Through the setting of support components and positioning components, the device can be stably placed on the slope. Then, the operator pulls the pull ring to move the locking post upward and compress the spring, which allows the extension tube to slide out along the groove on the inner wall of the square tube, adapting to measurement scenarios of different widths. After releasing the pull ring, the spring returns to its original position and pushes the locking post into the locking hole of the extension tube to achieve stable positioning. The T-shaped slider ensures the stability of the extension tube during the extension and retraction process and avoids displacement that affects the placement accuracy.

[0018] This invention provides a land slope measurement device. Through a horizontal tube, when the indicator needle quickly stops swinging due to the deceleration assembly, the operator first observes whether the bubble inside the horizontal tube is between the two circular indicator lines to confirm that the indicator needle is vertical. This further improves the reliability of the measurement benchmark and avoids reading errors caused by bearing blockage, aging of internal parts, etc. Finally, the operator clearly reads the slope value corresponding to the indicator needle on the scale plate through a transparent plate on one side of the housing. The second rotating column passes through the through hole of the scale plate with a diameter smaller than the inner diameter of the through hole, avoiding interference with the scale plate during rotation and ensuring the accuracy of the indicator needle. The overall device is easy to operate and highly adaptable. It significantly improves measurement efficiency through multiple deceleration designs and ensures the accuracy of measurement results through bubble calibration and mechanical anti-jamming structures, making it suitable for various land slope detection scenarios. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall front structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall structure of the transparent plate after it has been disassembled according to the present invention.

[0022] Figure 3 For the present invention Figure 2 A magnified structural diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the overall front view of the transparent plate after it has been disassembled according to the present invention.

[0024] Figure 5 This is a schematic diagram of a half-section view of the end of the square tube according to the present invention.

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at point B.

[0026] Figure 7 This is a schematic diagram showing the internal structure of the housing of the present invention.

[0027] Figure 8 This is a cross-sectional view of the protective plate of the present invention.

[0028] Figure 9This is a magnified structural diagram of the deceleration component of the present invention.

[0029] Figure 10 This is a schematic cross-sectional view of the fixed sphere structure of the present invention.

[0030] Figure 11 This is a schematic diagram of the detection status of a soil slope according to the present invention.

[0031] In the diagram: 1. Shell; 2. Transparent plate; 3. Square tube; 4. Slide groove; 5. Slider; 6. Handle; 7. Fixed cylinder; 8. Pull ring; 9. Locking post; 10. Scale plate; 11. Gear disk; 12. Protective plate; 13. Spherical shell; 14. Horizontal tube; 15. First rotating column; 16. Movable rod; 17. Connecting rod; 18. Side baffle; 19. Circular plate; 20. Spring; 21. Extension tube; 22. Through hole; 23. Second rotating column; 24. Bearing seat; 25. Swing column; 26. Gear plate; 27. Indicator needle; 28. Connecting seat; 30. Bent column; 31. Fixed ball; 32. Flow obstruction hole; 33. Soil slope; 34. Rotating seat. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0033] Please see Figures 1-11 A land slope measuring device includes a housing 1, a bearing seat 24 fixedly connected to one inner wall of the housing 1, a second rotating column 23 fixedly connected to the inner circumference of the bearing seat 24, an indicator needle 27 fixedly connected to one end of the second rotating column 23, a scale plate 10 fixedly connected to one inner wall of the housing 1, and the indicator needle 27 located on one side of the scale plate 10. The housing 1 is equipped with a deceleration assembly for rapidly stopping the indicator needle 27; The bottom of the housing 1 is equipped with a support component that makes it easy to place flat on the slope 33. The overall equipment is easy to operate and highly adaptable. It not only greatly improves the measurement efficiency through multiple deceleration designs, but also ensures the accuracy of the measurement results through structures such as bubble calibration and mechanical anti-jamming. It is suitable for various land slope detection scenarios.

[0034] Furthermore, the deceleration assembly includes a swing column 25 fixedly connected to the outer circumferential wall of the second rotating column 23. A connecting seat 28 is fixedly connected to one end of the swing column 25 away from the second rotating column 23. A bent column 30 is fixedly connected to the outer circumferential wall of the connecting seat 28. A horizontal tube 14 is fixedly connected to the other end of the bent column 30. The interior of the horizontal tube 14 is filled with colored ethanol. Two circular indicator lines are provided on the outer circumferential wall of the horizontal tube 14. An air bubble is provided in the area between the two circular indicator lines inside the horizontal tube 14. A spherical shell 13 is fixedly connected to the outer circumferential wall of the horizontal tube 14. The spherical shell 13 and the horizontal tube 14... 4. A fixed ball 31 is provided inside the spherical shell 13. A first rotating column 15 is fixedly connected to the outer circumference of the fixed ball 31. A movable rod 16 is rotatably connected to one end of the first rotating column 15 extending outside the spherical shell 13. A connecting rod 17 is rotatably connected to the end of the movable rod 16 away from the first rotating column 15. A rotating seat 34 is rotatably connected to the end of the connecting rod 17 away from the movable rod 16. A gear disk 11 is fixedly connected to one end of the rotating seat 34. A toothed plate 26 meshes with the outer circumference of the gear disk 11. When the equipment is placed stably, the horizontal tube 14 and the indicator needle 27 both drive the second rotating column 27 under the action of gravity. The moving column 23 swings together. During this process, the ethanol liquid in the horizontal tube 14 can increase the overall counterweight, thereby enhancing the inertial stability of the indicator needle 27 during swing and reducing the interference of slight external vibrations on the swing trajectory. As the horizontal tube 14 is subjected to gravity and swings back and forth with the pendulum 25, it will also drive the gear disk 11 on one side to swing together. During the swing, the gear disk 11 will mesh with the toothed plate 26, thereby enabling the gear disk 11 to rotate while swinging. The rotation of the gear disk 11 can drive the rotating seat 34, connecting rod 17, moving rod 16 and first rotating column 15 to swing together. When the first rotating column 15 rotates, it can drive the fixed ball 31 at one end to make a circular motion. At this time, when the fixed ball 31 rotates in the ethanol liquid, it will consume a large amount of the kinetic energy generated by the swing of the entire horizontal tube 14. Moreover, the spiral flow-blocking hole 32 opened on the fixed ball 31 can extend the flow path of the liquid inside the fixed ball 31. At this time, the contact area between the liquid and the hole wall is further increased, which makes the energy loss (damping) generated by viscous shear greater, thereby quickly weakening the swing amplitude of the indicator needle 27 and making it stop quickly. This effectively solves the problem of low reading efficiency caused by the reciprocating swing of the pointer in traditional equipment.

[0035] Furthermore, the cross-section of the toothed plate 26 is annular, and the center of the toothed plate 26 coincides with the axis of the second rotating column 23. Both ends of the toothed plate 26 are fixedly connected to the inner walls of both sides of the housing 1. Both outer walls of the toothed plate 26 are fixedly connected to guard plates 12 for ensuring stable meshing of the gear disk 11. During the process of the gear disk 11 and the toothed plate 26 oscillating and meshing, the guard plates 12 on both sides of the toothed plate 26 can prevent the gear disk 11 from disengaging from the meshing trajectory, thus ensuring the stability of the transmission between the gear disk 11 and the toothed plate 26.

[0036] Furthermore, side baffles 18 are fixedly connected to the outer walls of both sides of the movable rod 16 to limit the swing angle of the connecting rod 17. The two side baffles 18 are symmetrically arranged on both sides of the connecting rod 17 and are arranged perpendicular to the movable rod 16. When the indicator needle 27 is about to stop swinging, the rotation and bending between the connecting rod 17 and the movable rod 16 can dynamically compensate for the jamming problem that may occur when the gear disk 11 and the tooth plate 26 are meshed, ensuring that the indicator needle 27 can be accurately in a vertical downward state, avoiding measurement errors caused by mechanical jamming. The side baffles 18 on both sides of the movable rod 16 can prevent the bending amplitude between the connecting rod 17 and the movable rod 16 from being too large, and can also play a rigid support role when the movable rod 16 and the connecting rod 17 are bent, so that the gear disk 11 always maintains a stable meshing state with the tooth plate 26, and will not loosen or shift due to bending force, further ensuring the continuity and reliability of the speed reduction transmission.

[0037] Furthermore, the outer wall of the fixed ball 31 is provided with three flow-blocking holes 32, which are respectively opened along the X-axis, Y-axis, and Z-axis of the fixed ball 31. The channels of the flow-blocking holes 32 are spiral-shaped. The spiral flow-blocking holes 32 on the fixed ball 31 can extend the flow path of the liquid inside the fixed ball 31. At this time, the contact area between the liquid and the hole wall is further increased, and the energy loss (damping) generated by viscous shear is greater. This can quickly reduce the swing amplitude of the indicator needle 27 and make it stop quickly, effectively solving the problem of low reading efficiency caused by the reciprocating swing of the pointer in traditional equipment. At the same time, the fixed ball 3 Three damping holes are provided on the 1 along the X, Y, and Z axes, which can achieve all-round damping of ethanol liquid in three-dimensional space. No matter which direction the fixed ball 31 rotates, it can generate stable damping through the corresponding spiral flow obstruction hole 32, ensuring uniform and efficient deceleration effect and avoiding stopping delay caused by insufficient damping in one direction. In addition, the spiral streamlined design can guide the liquid to flow smoothly, reduce the generation of turbulence and eddies, avoid affecting the bubble in the middle of the upper layer of the horizontal tube 14, and ensure that the bubble can always remain stable between the two circular indicator lines, providing an accurate horizontal reference benchmark for subsequent slope measurement.

[0038] Furthermore, an installation groove is provided on one side of the outer wall of the housing 1. A transparent plate 2 is fixedly connected in the installation groove by bolts. The transparent plate 2 not only avoids the influence of the external environment (such as wind) but also makes it convenient for staff to quickly read the readings.

[0039] Furthermore, a through hole 22 is provided on one side of the scale plate 10, and the second rotating post 23 passes through the inside of the through hole 22. The diameter of the second rotating post 23 is smaller than the inner diameter of the through hole 22. The second rotating post 23 passes through the through hole 22 of the scale plate 10 and its diameter is smaller than the inner diameter of the through hole 22, which avoids interference with the scale plate 10 when rotating and ensures the accuracy of the pointer 27.

[0040] Furthermore, the support assembly includes a square tube 3 fixedly connected to the bottom outer wall of the housing 1. Extension tubes 21 are inserted into both ends of the square tube 3. A positioning assembly for storing and locking the extension tubes 21 is provided on the top of the square tube 3. A handle 6 is fixedly connected to the top outer wall of the square tube 3. The support assembly can prevent the entire equipment from being unstable or tilting due to the pits and bumps on the soil slope surface. The square tube 3 serves as the basic support structure, and together with the extendable extension tubes 21 at both ends, the support span can be flexibly adjusted according to the actual terrain width of the slope. At the same time, the extension tubes 21 can be quickly locked and fixed through the positioning components to ensure the stability of the support point. Even if there are local pits and depressions on the slope surface, the staff can adjust the extension length of the extension tubes 21 so that the square tube 3 and the extension tubes 21 together form a stable support surface, balancing the force on the equipment and preventing the equipment from shaking or tilting due to unstable single-point support. The handle 6 on the top of the square tube 3 not only facilitates the carrying and handling of the equipment, but also assists the staff in fine-tuning the position when placing the equipment, further ensuring the horizontal stability of the equipment placement and providing a reliable foundation for the accuracy of subsequent slope measurements. This effectively solves the problem of the equipment being difficult to erect stably in complex terrain.

[0041] Furthermore, grooves 4 are provided on both inner walls of the square tube 3. A slider 5 is slidably connected inside the groove 4. The cross-section of the slider 5 is T-shaped. One end of the slider 5 inside the square tube 3 is fixedly connected to the outer wall of the extension tube 21. The T-shaped slider 5 ensures the stability of the extension tube 21 during the extension and retraction process and avoids displacement that affects the placement accuracy.

[0042] Furthermore, the positioning component includes a fixed cylinder 7 fixedly connected to the top outer wall of the square tube 3. A circular plate 19 is slidably connected inside the fixed cylinder 7. A spring 20 is fixedly connected to the top outer wall of the circular plate 19. The other end of the spring 20 is fixedly connected to the top inner wall of the fixed cylinder 7. A locking post 9 is fixedly connected to the circumferential inner wall of the circular plate 19. A pull ring 8 is fixedly connected to one end of the locking post 9 that passes through the top of the fixed cylinder 7. A locking hole is opened at the top of the extension tube 21. The end of the locking post 9 away from the pull ring 8 is locked inside the locking hole. The operator can carry the equipment to the measurement location through the handle 6. First, the equipment is placed stably on the slope 33 with the help of the support component. Pulling the pull ring 8 moves the locking post 9 upward and compresses the spring 20, so that the extension tube 21 can slide out along the groove 4 on the inner wall of the square tube 3, adapting to measurement scenarios of different widths.

[0043] In summary, with the help of the above-mentioned technical solution of the present invention, when in use, the staff can carry the equipment to the measurement location through the handle 6, first use the support component to place the equipment stably on the slope 33, pull the pull ring 8 to drive the locking post 9 to move up and compress the spring 20, so that the extension tube 21 can slide out along the sliding groove 4 on the inner wall of the square tube 3 to adapt to measurement scenarios of different widths. After releasing the pull ring 8, the spring 20 returns to its original position and pushes the locking post 9 into the locking hole of the extension tube 21 to achieve stable positioning. The T-shaped slider 5 ensures the stability of the extension tube 21 during the extension and retraction process and avoids deviation that affects the placement accuracy. Once the equipment is placed stably, both the horizontal tube 14 and the indicator needle 27 swing together with the second rotating column 23 under the action of gravity. During this process, the ethanol liquid in the horizontal tube 14 can increase the overall counterweight, thereby enhancing the inertial stability of the indicator needle 27 during swing and reducing the interference of slight external vibrations on the swing trajectory. As the horizontal tube 14 swings back and forth with the pendulum 25 under the action of gravity, it will also drive the gear disk 11 on one side to swing together. During the swing, the gear disk 11 will mesh with the toothed plate 26, thereby enabling the gear disk 11 to rotate while swinging. The rotation of the gear disk 11 can drive the rotating seat 34, connecting rod 17, movable rod 16 and the first rotating column 15 to rotate together. When the first rotating column 15 rotates, it can drive the fixed ball 31 at one end to make a circular motion. At this time, when the fixed ball 31 rotates in the ethanol liquid, it will consume a large amount of the kinetic energy generated by the swing of the entire horizontal tube 14. Moreover, the spiral flow obstruction hole 32 opened on the fixed ball 31 can extend the... As the liquid flows through the fixed sphere 31, the contact area between the liquid and the hole wall increases further, resulting in greater energy loss (damping) from viscous shearing. This quickly weakens the swing amplitude of the indicator needle 27, causing it to stop rapidly. This effectively solves the problem of low reading efficiency caused by the reciprocating swing of the pointer in traditional equipment. At the same time, three damping holes are provided on the fixed sphere 31 along the X, Y, and Z axes, enabling all-round damping of the ethanol liquid in three-dimensional space. Regardless of which direction the fixed sphere 31 rotates, stable damping is generated through the corresponding spiral flow obstruction hole 32, ensuring uniform and efficient deceleration and avoiding stopping delay caused by insufficient damping in one direction. In addition, the spiral streamlined design guides the liquid to flow smoothly, reducing the generation of turbulence and eddies, avoiding impact on the bubbles in the upper middle part of the horizontal tube 14, and ensuring that the bubbles always remain stable between the two circular indicator lines, providing an accurate horizontal reference benchmark for subsequent slope measurement. Meanwhile, during the oscillating engagement of the gear disk 11 and the toothed plate 26, the guard plates 12 on both sides of the toothed plate 26 can prevent the gear disk 11 from disengaging from the engagement trajectory, ensuring the stability of the transmission between the gear disk 11 and the toothed plate 26. In addition, when the indicator needle 27 is about to stop, the rotation and bending between the connecting rod 17 and the movable rod 16 can dynamically compensate for the jamming problem that may occur when the gear disk 11 and the toothed plate 26 are engaged, ensuring that the indicator needle 27 can ultimately be accurately in a vertically downward state, avoiding measurement errors caused by mechanical jamming. Furthermore, the side baffles 18 on both sides of the movable rod 16 can, on the one hand, prevent the bending amplitude between the connecting rod 17 and the movable rod 16 from being too large, and on the other hand, can play a rigid support role when the movable rod 16 and the connecting rod 17 are bent, so that the gear disk 11 always maintains a stable engagement state with the toothed plate 26, and will not loosen or deviate due to bending force, further ensuring the continuity and reliability of the speed reduction transmission. When the indicator needle 27 comes to a rapid stop due to the deceleration of the deceleration assembly, the operator first observes whether the bubble in the horizontal tube 14 is between the two circular indicator lines to confirm whether the indicator needle 27 is in a vertical position. This further improves the reliability of the measurement benchmark and avoids reading errors caused by factors such as bearing blockage and aging of internal parts. Finally, the operator clearly reads the slope value corresponding to the indicator needle 27 on the scale plate 10 through the transparent plate 2 on one side of the housing 1. The second rotating column 23 passes through the through hole 22 of the scale plate 10 and its diameter is smaller than the inner diameter of the through hole 22, avoiding interference with the scale plate 10 during rotation and ensuring the accuracy of the indicator needle 27. The overall equipment is easy to operate and highly adaptable. It not only greatly improves the measurement efficiency through multiple deceleration designs, but also ensures the accuracy of the measurement results through bubble calibration, mechanical anti-jamming and other structures. It is suitable for various land slope detection scenarios.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for measuring land slope, comprising a housing (1), characterized in that, A bearing seat (24) is fixedly connected to one side of the inner wall of the housing (1), a second rotating column (23) is fixedly connected to the inner circumference of the bearing seat (24), an indicator needle (27) is fixedly connected to one end of the second rotating column (23), a scale plate (10) is fixedly connected to one side of the inner wall of the housing (1), and the indicator needle (27) is located on one side of the scale plate (10). The housing (1) is provided with a deceleration assembly for quickly stopping the indicator needle (27); The bottom of the housing (1) is provided with a support component that facilitates its placement on the earth slope (33).

2. The land slope measurement device according to claim 1, characterized in that, The deceleration assembly includes a pendulum (25) fixedly connected to the outer circumference of the second rotating column (23). A connecting seat (28) is fixedly connected to one end of the pendulum (25) away from the second rotating column (23). A bent column (30) is fixedly connected to the outer circumference of the connecting seat (28). A horizontal tube (14) is fixedly connected to the other end of the bent column (30). The horizontal tube (14) is filled with colored ethanol. Two circular indicator lines are provided on the outer circumference of the horizontal tube (14). An air bubble is provided in the area between the two circular indicator lines inside the horizontal tube (14). A spherical shell (13) is fixedly connected to the outer circumference of the horizontal tube (14). The shell (13) is connected to the horizontal tube (14). A fixed ball (31) is provided inside the spherical shell (13). A first rotating column (15) is fixedly connected to the outer circumference of the fixed ball (31). A movable rod (16) is rotatably connected to one end of the first rotating column (15) extending to the outside of the spherical shell (13). A connecting rod (17) is rotatably connected to one end of the movable rod (16) away from the first rotating column (15). A rotating seat (34) is rotatably connected to one end of the connecting rod (17) away from the movable rod (16). A gear disk (11) is fixedly connected to one end of the rotating seat (34). A toothed plate (26) meshes with the outer circumference of the gear disk (11).

3. The land slope measurement device according to claim 2, characterized in that, The toothed plate (26) has a circular cross-section. The center of the toothed plate (26) coincides with the axis of the second rotating column (23). Both ends of the toothed plate (26) are fixedly connected to the inner walls of both sides of the housing (1). Both outer walls of the toothed plate (26) are fixedly connected to guard plates (12) for ensuring stable meshing of the gear disk (11).

4. The land slope measurement device according to claim 3, characterized in that, Both sides of the movable rod (16) are fixedly connected with side baffles (18) for limiting the swing angle of the connecting rod (17). The two side baffles (18) are symmetrically arranged on both sides of the connecting rod (17), and the side baffles (18) are arranged perpendicular to the movable rod (16).

5. A land slope measurement device according to claim 4, characterized in that, The outer wall of the fixed ball (31) is provided with a flow-blocking hole (32). There are three flow-blocking holes (32). The three flow-blocking holes (32) are respectively opened along the X-axis, Y-axis and Z-axis of the fixed ball (31), and the channel of the flow-blocking hole (32) has a spiral structure.

6. The land slope measurement device according to claim 5, characterized in that, The outer wall of one side of the housing (1) is provided with an installation groove, and a transparent plate (2) is fixedly connected in the installation groove by bolts.

7. A land slope measurement device according to claim 6, characterized in that, The scale plate (10) has a through hole (22) on one side, and the second rotating column (23) passes through the inside of the through hole (22). The diameter of the second rotating column (23) is smaller than the inner diameter of the through hole (22).

8. A land slope measurement device according to claim 7, characterized in that, The support assembly includes a square tube (3) fixedly connected to the bottom outer wall of the housing (1). Both ends of the square tube (3) are connected to extension tubes (21). The top of the square tube (3) is provided with a positioning assembly for storing and locking the extension tubes (21). The top outer wall of the square tube (3) is fixedly connected with a handle (6).

9. A land slope measurement device according to claim 8, characterized in that, The inner walls of both sides of the square tube (3) are provided with sliding grooves (4), and a slider (5) is slidably connected inside the sliding groove (4). The cross-section of the slider (5) is T-shaped, and one end of the slider (5) inside the square tube (3) is fixedly connected to the outer wall of one side of the extension tube (21).

10. A land slope measurement device according to claim 9, characterized in that, The positioning assembly includes a fixed cylinder (7) fixedly connected to the top outer wall of the square tube (3), a circular plate (19) slidably connected inside the fixed cylinder (7), a spring (20) fixedly connected to the top outer wall of the circular plate (19), the other end of the spring (20) fixedly connected to the top inner wall of the fixed cylinder (7), a locking post (9) fixedly connected to the circumferential inner wall of the circular plate (19), a pull ring (8) fixedly connected to one end of the locking post (9) passing through the top of the fixed cylinder (7), a locking hole is provided at the top of the extension tube (21), and the end of the locking post (9) away from the pull ring (8) is engaged inside the locking hole.

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