A surveying table for land surveying

Abstract

This invention relates to the field of surveying equipment technology, and more particularly to a surveying platform for land surveying, comprising a support base, with multiple circumferentially distributed legs rotatably connected to the side wall of the support base, each leg having a base rotatably connected to its bottom. The support base has a spherical groove inside, with a matching rotating sphere installed within it. A strut runs through the rotating sphere, and the surveying platform body is fixed to the top of the strut. A detection mechanism is connected to the bottom of the strut to detect whether the strut is vertical. A fixing mechanism is provided on the inner wall of the spherical groove. This land surveying platform achieves stable support through the legs and base. The tilt angle of the surveying platform body can be flexibly adjusted by the cooperation of the spherical groove and the rotating sphere. The detection mechanism can monitor the verticality of the strut in real time and provide an alarm. After leveling, the fixing mechanism locks the rotating sphere, quickly completing the horizontal calibration.

Description

Technical Field

[0001] This invention relates to the field of surveying equipment technology, specifically a surveying platform for land surveying. Background Technology

[0002] Land surveying is a professional work that relies on surveying technology, geographic information systems, remote sensing and other means to accurately measure, collect, organize, analyze and draw geospatial information such as the location, ownership, boundaries, area, topography and land use status of land. It is the basic technical support for land management and requires the use of a surveying station when conducting land surveying.

[0003] Existing land surveying stations often lack real-time vertical detection and flexible leveling structures. Uneven ground can easily cause the surveying station to tilt, which is difficult to detect in time. Leveling operations are cumbersome, angle adjustments are limited, and there is no reliable way to fix the station after leveling, which can easily lead to secondary offsets, affecting the levelness of the surveying equipment and reducing the accuracy of land surveying data and operational efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a surveying station for land surveying to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A surveying platform for land surveying includes a support base. Multiple circumferentially distributed legs are rotatably connected to the sidewalls of the support base, and each leg is rotatably connected to a base. A spherical groove is provided inside the support base, and a matching rotating sphere is installed inside the spherical groove. A support rod passes through the rotating sphere, and the top of the support rod is fixed to the surveying platform body. A detection mechanism is connected to the bottom of the support rod to detect whether the support rod is vertical. A fixing mechanism is provided on the inner wall of the spherical groove to fix the rotating sphere.

[0007] Preferably, the detection mechanism includes a first support plate and a second support plate fixedly connected to the bottom of the support base. A pneumatic cylinder passes through the inside of the first support plate, and a pneumatic rod passes through the end of the pneumatic cylinder. A first spring is fixed to one end of the pneumatic rod located outside the pneumatic cylinder. A pressure sensor is installed on the side wall of the second support plate, and the pressure sensor is fixedly connected to the end of the first spring. A pneumatic assembly is connected to the pneumatic cylinder. When the support rod tilts, the pneumatic assembly is used to inflate the pneumatic cylinder.

[0008] Preferably, the pneumatic assembly includes a bracket that is fixedly connected to the side wall of the support rod and is symmetrically distributed. A support ring is fixed at the bottom of the bracket. An annular airbag is installed on the inner wall of the support ring. The annular airbag is connected to an air tube. The other end of the air tube is connected to a pneumatic cylinder. A traction rope is fixed at the bottom of the support rod. A load-bearing block is fixed at the bottom of the traction rope. A compression ball is fixed outside the traction rope. The compression ball is located inside the annular airbag.

[0009] Preferably, the fixing mechanism includes multiple cavities arranged circumferentially inside the support base. Each cavity is provided with a stop plate, which is connected to the inner wall of the cavity by a second spring. An arc-shaped stop block is fixedly connected to the stop plate. The arc-shaped stop block is adapted to and abuts against the rotating ball. A clamping component is provided inside the cavity to clamp the arc-shaped stop block against the outer wall of the rotating ball.

[0010] Preferably, the clamping assembly includes a rotating ring disposed inside the support base. The outer wall of the rotating ring is provided with a plurality of arc-shaped sliders symmetrically distributed. The inner wall of the support base is provided with arc-shaped grooves symmetrically distributed and adapted to the arc-shaped sliders. The ends of the arc-shaped sliders are located inside the arc-shaped grooves and are slidably connected thereto. A plurality of movable rods circumferentially distributed are rotatably connected to the inner wall of the rotating ring. The other ends of the movable rods extend into the cavity and are connected to the abutment plate. The rotating ring is connected to a rotating component, which is used to drive the rotating ring to rotate.

[0011] Preferably, the rotating component includes a plurality of teeth evenly distributed on the outer wall of the rotating ring, the teeth meshing with a toothed plate, one end of the toothed plate penetrating through the support seat, and the other end of the toothed plate being connected to the inner wall of the support seat via a third spring. A limit rod is fixed on the inner wall of the support seat, the limit rod extending into the toothed plate and slidingly connected to the toothed plate, and the toothed plate is connected to a positioning element for positioning the toothed plate.

[0012] Preferably, the positioning element includes a pin that penetrates the outer wall of the support base. The pin is connected to the outer wall of the support base via a fourth spring. The end of the pin is in contact with the side wall of the toothed plate, and the side wall of the toothed plate is provided with a pin groove that matches the pin.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the local land surveying station achieves stable support through the legs and base, and the tilt angle of the surveying station body can be flexibly adjusted by relying on the cooperation of the spherical groove and the rotating sphere; with the detection mechanism, the verticality of the support rod can be monitored in real time and an alarm can be triggered; after leveling, the rotating sphere is locked by the fixing mechanism, and the horizontal calibration is quickly completed, effectively avoiding the surveying deviation caused by uneven ground, and improving the stability and accuracy of the surveying station. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the extruded ball connection structure in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the air cylinder connection structure in an embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the support base in an embodiment of the present invention.

[0018] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0019] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0020] In the diagram: 1-Surveying platform body, 2-Detection mechanism, 21-Support, 22-Annular airbag, 23-Traction rope, 24-Support ring, 25-Squeezing ball, 26-Weighing block, 27-Air pipe, 28-Pneumatic cylinder, 29-First support plate, 210-Second support plate, 211-Pressure sensor, 212-First spring, 213-Pneumatic rod, 3-Fixing mechanism, 31-Arc-shaped stop block, 32-Stop plate, 33-Second spring, 34-Stop rod, 35-Moving rod, 36-Rotating ring, 37-Arc-shaped slide groove, 38-Arc-shaped slider, 39-Tooth, 310-Tooth plate, 311-Pin groove, 312-Pin rod, 313-Fourth spring, 314-Third spring, 315-Limiting rod, 4-Base, 5-Outrigger, 6-Support seat, 7-Strut, 8-Rotating sphere, 9-Spherical groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0023] In one embodiment, see Figure 1 , Figure 2 and Figure 4A surveying platform for land surveying includes a support base 6. Multiple circumferentially distributed legs 5 are rotatably connected to the sidewalls of the support base 6. A base 4 is rotatably connected to the bottom of each leg 5. A spherical groove 9 is provided inside the support base 6, and a matching rotating sphere 8 is installed inside the spherical groove 9. A support rod 7 passes through the rotating sphere 8, and the top of the support rod 7 is fixed to the surveying platform body 1. A detection mechanism 2 is connected to the bottom of the support rod 7 to detect whether the support rod 7 is vertical. A fixing mechanism 3 is provided on the inner wall of the spherical groove 9 to fix the rotating sphere 8.

[0024] In this embodiment, when the surveying platform is in use, multiple bases 4 are fixedly connected to the ground. The bases 4 and legs 5 support the support base 6. The support base 6 may tilt due to uneven ground, causing the surveying instrument on top of the platform body 1 to be out of horizontal position. When the platform body 1 tilts, the support rod 7 at the bottom of the platform body 1 will tilt simultaneously. At this time, the detection mechanism 2 at the bottom of the support rod 7 will automatically detect that the support rod 7 is not vertical and issue an alarm to remind the staff. Then, the staff can adjust the tilt angle of the platform body 1 through the support rod 7. Since a rotating ball 8 is fixed to the outside of the support rod 7 and the rotating ball 8 can rotate freely inside the spherical groove 9, the staff can adjust the angle of the support rod 7 at any time, which is convenient. Staff can quickly adjust the tilt angle of the surveying platform 1. When the platform is horizontal, the detection mechanism 2 automatically detects that the support rod 7 is vertical and stops issuing alarms. Then, staff can fix the rotating ball 8 through the fixing mechanism 3 on the inner wall of the spherical groove 9, thereby limiting the rotation of the ball 8 and effectively improving the stability of the surveying platform 1. The local land surveying platform achieves stable support through the legs 5 and the base 4. Relying on the cooperation between the spherical groove 9 and the rotating ball 8, the tilt angle of the platform can be flexibly adjusted. With the detection mechanism 2, the verticality of the support rod 7 can be monitored in real time and an alarm can be issued. After leveling, the rotating ball 8 is locked by the fixing mechanism 3, and the horizontal calibration is quickly completed, effectively avoiding surveying deviations caused by uneven ground and improving the stability and accuracy of the surveying platform.

[0025] Please see Figure 2 and Figure 3The detection mechanism 2 includes a first support plate 29 and a second support plate 210 fixedly connected to the bottom of the support base 6. A pneumatic cylinder 28 passes through the inside of the first support plate 29, and a pneumatic rod 213 passes through the end of the pneumatic cylinder 28. A first spring 212 is fixed to one end of the pneumatic rod 213 located outside the pneumatic cylinder 28. A pressure sensor 211 is installed on the side wall of the second support plate 210. The pressure sensor 211 is fixedly connected to the end of the first spring 212. A pneumatic assembly is connected to the pneumatic cylinder 28. When the support rod 7 tilts, the pneumatic assembly is used to inflate the pneumatic cylinder 28.

[0026] When the support rod 7 tilts, the pneumatic assembly automatically fills the pneumatic cylinder 28 with air. The increased air pressure inside the pneumatic cylinder 28 compresses the pneumatic rod 213, which in turn compresses the first spring 212. The first spring 212 applies pressure to the pressure sensor 211, which senses the pressure change and controls the alarm to sound through the controller. The alarm then alerts the staff, thus detecting whether the support rod 7 is vertical. At the same time, the greater the tilt angle of the support rod 7, the more gas enters the pneumatic cylinder 28, and the greater the pressure applied by the pneumatic rod 213 to the pressure sensor 211 through the first spring 212, resulting in a louder alarm. This makes it easier for staff to control the adjustment force of the support rod 7 angle.

[0027] Please see Figure 2 The pneumatic assembly includes a bracket 21 that is fixedly connected to the side wall of the support rod 7 and is symmetrically distributed. A support ring 24 is fixed at the bottom of the bracket 21. An annular airbag 22 is installed on the inner wall of the support ring 24. The annular airbag 22 is connected to an air tube 27. The other end of the air tube 27 is connected to a pneumatic cylinder 28. A traction rope 23 is fixed at the bottom of the support rod 7. A load-bearing block 26 is fixed at the bottom of the traction rope 23. A compression ball 25 is fixed outside the traction rope 23. The compression ball 25 is located inside the annular airbag 22.

[0028] When the strut 7 tilts, the strut 7 drives the support ring 24 to tilt through the bracket 21, while the traction rope 23 remains vertical under the action of the load block 26. At this time, the traction rope 23 can squeeze the annular airbag 22 through the compression ball 25. The gas inside the annular airbag 22 enters the air pressure cylinder 28 through the air pipe 27, which allows the air pressure rod 213 to apply pressure to the pressure sensor 211 through the first spring 212. Furthermore, through the arrangement of the compression ball 25 and the annular airbag 22, the compression ball 25 will apply pressure to the annular airbag 22 no matter which direction the strut 7 tilts, ensuring the detection effect of the verticality of the strut 7.

[0029] Please see Figure 4 and Figure 5The fixing mechanism 3 includes multiple cavities arranged in a circular pattern inside the support base 6. Each cavity is provided with a stop plate 32. The stop plate 32 is connected to the inner wall of the cavity through a second spring 33. An arc-shaped stop block 31 is fixedly connected to the stop plate 32. The arc-shaped stop block 31 is adapted to the rotating ball 8 and abuts against the rotating ball 8. A clamping assembly is provided inside the cavity. The clamping assembly is used to clamp the arc-shaped stop block 31 against the outer wall of the rotating ball 8.

[0030] When adjusting the tilt angle of the strut 7, the arc-shaped abutment 31, under the action of the second spring 33 and the abutment plate 32, is tightly fitted with the rotating ball 8. The second spring 33 provides elastic support for the rotating ball 8, effectively improving the stability of the strut 7 during angle adjustment. When the tilt angle of the strut 7 is adjusted, the abutment plate 32 is pressed down by the abutment assembly, so that the arc-shaped abutment 31 is tightly fitted with the side wall of the rotating ball 8. At this time, the arc-shaped abutment 31 fixes the rotating ball 8, effectively improving the stability of the strut 7. Furthermore, the circumferentially distributed arc-shaped abutments 31 can apply pressure to the rotating ball 8 from multiple directions simultaneously, ensuring the fixing effect of the rotating ball 8 and avoiding secondary rotation caused by force in a single direction.

[0031] Please see Figure 4 and Figure 5 The clamping assembly includes a rotating ring 36 disposed inside the support base 6. The outer wall of the rotating ring 36 is provided with a plurality of arc-shaped sliders 38 symmetrically distributed. The inner wall of the support base 6 is provided with arc-shaped grooves 37 symmetrically distributed and adapted to the arc-shaped sliders 38. The ends of the arc-shaped sliders 38 are located inside the arc-shaped grooves 37 and are slidably connected thereto. The inner wall of the rotating ring 36 is rotatably connected with a plurality of movable rods 35 distributed in a circle. The other end of the movable rods 35 extends into the cavity and is connected to the abutment plate 32. The rotating ring 36 is connected to a rotating component, which is used to drive the rotating ring 36 to rotate.

[0032] When the tilt angle of the support rod 7 is adjusted, the rotating component drives the rotating ring 36 to rotate. Simultaneously, the rotating ring 36 rotates, causing the abutment plate 32 to move via the movable rod 35. When the abutment plate 32 moves to a certain position, it causes the arc-shaped abutment block 31 to apply pressure to the rotating sphere 8, thereby ensuring that the arc-shaped abutment block 31 fits tightly against the side wall of the rotating sphere 8, effectively improving the stability of the rotating sphere 8. The arc-shaped groove 37, through the arc-shaped slider 38, limits the rotation of the rotating ring 36, effectively improving the stability of the rotating ring 36 during rotation.

[0033] Please see Figure 6The rotating component includes a plurality of teeth 39 evenly distributed on the outer wall of the rotating ring 36. The teeth 39 mesh with a toothed plate 310. One end of the toothed plate 310 passes through the support base 6, and the other end of the toothed plate 310 is connected to the inner wall of the support base 6 through a third spring 314. A limit rod 315 is fixed on the inner wall of the support base 6. The limit rod 315 extends into the toothed plate 310 and is slidably connected to the toothed plate 310. The toothed plate 310 is connected to a positioning member for positioning the toothed plate 310.

[0034] When the tilt angle of the support rod 7 is adjusted, the toothed plate 310 is pushed. As the toothed plate 310 moves, it meshes with the teeth 39, causing the rotating ring 36 to rotate. When the arc-shaped stop block 31 presses against the rotating ball 8, the positioning component automatically positions the toothed plate 310, effectively improving the stability of the rotating ring 36. When the tilt angle of the support rod 7 needs to be adjusted again, the positioning component releases the toothed plate 310, and the toothed plate 310 automatically resets under the action of the third spring 314, thus allowing the rotating ring 36 to reset synchronously. The limiting rod 315 limits the movement of the toothed plate 310, effectively improving its stability.

[0035] Please see Figure 6 The positioning component includes a pin 312 that penetrates the outer wall of the support base 6. The pin 312 is connected to the outer wall of the support base 6 by a fourth spring 313. The end of the pin 312 abuts against the side wall of the toothed plate 310, and the side wall of the toothed plate 310 is provided with a pin groove 311 that matches the pin 312.

[0036] When the tilt angle of the support rod 7 is adjusted, push the toothed plate 310. As the toothed plate 310 moves, it drives the rotating ring 36 to rotate through the meshing with the teeth 39. When the arc-shaped stop block 31 presses against the rotating ball 8, the pin 312 is just aligned with the pin groove 311. At this time, the pin 312 automatically enters the pin groove 311 under the action of the fourth spring 313. The pin 312 fixes the toothed plate 310 through the pin groove 311, effectively improving the stability of the rotating ring 36. When it is necessary to adjust the tilt angle of the support rod 7 again, simply pull the pin 312 out of the pin groove 311.

[0037] Working principle: When in use, the surveying platform has multiple bases 4 fixedly connected to the ground. The bases 4 and legs 5 support the support base 6. The support base 6 may tilt due to uneven ground, causing the surveying instrument on top of the platform body 1 to be out of level. When the platform body 1 tilts, the support rod 7 at the bottom of the platform body 1 will tilt simultaneously, while the traction rope 23 remains vertical under the action of the load-bearing block 26. At this time, the traction rope 23 can compress the annular airbag 22 through the compression ball 25. The gas inside the annular airbag 22 enters the air pressure cylinder 28 through the air pipe 27, which allows the air pressure rod 213 to apply pressure to the pressure sensor 211 through the first spring 212. The pressure sensor 211 senses the pressure change and issues an alarm to remind the staff. Then, the staff can adjust the tilt angle of the surveying platform body 1 using the support rod 7. Since the support rod 7 has a rotating ball 8 fixed to its exterior, and the rotating ball 8 can rotate freely inside the spherical groove 9, the staff can adjust the angle of the support rod 7 at any angle, making it convenient for the staff to quickly adjust the tilt angle of the surveying platform body 1. When the surveying platform body 1 is in a horizontal state, the toothed plate 310 is pushed. As the toothed plate 310 moves, it drives the rotating ring 36 to rotate through the meshing with the teeth 39. As the rotating ring 36 rotates, it drives the abutment plate 32 to move through the movable rod 35. When the abutment plate 32 moves to a certain position, the abutment plate 32 drives the arc-shaped abutment block 31 to apply pressure to the rotating ball 8, so that the arc-shaped abutment block 31 can fit tightly against the side wall of the rotating ball 8, effectively improving the stability of the rotating ball 8. Furthermore, when the arc-shaped abutment 31 presses against the rotating ball 8, the pin 312 and the pin groove 311 are just aligned. At this time, the pin 312 automatically enters the pin groove 311 under the action of the fourth spring 313. The pin 312 fixes the toothed plate 310 through the pin groove 311, effectively improving the stability of the rotating ring 36.

[0038] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surveying platform for land surveying, comprising a support base; characterized in that, The support base has multiple circumferentially distributed legs rotatably connected to its side wall, and each leg has a base rotatably connected to its bottom. The support base has a spherical groove inside, and a matching rotating sphere is installed inside the spherical groove. A support rod runs through the rotating sphere, and a surveying platform body is fixed to the top of the support rod. A detection mechanism is connected to the bottom of the support rod to detect whether the support rod is vertical. A fixing mechanism is provided on the inner wall of the spherical groove to fix the rotating sphere.

2. A surveying station for land surveying according to claim 1, characterized in that, The detection mechanism includes a first support plate and a second support plate fixedly connected to the bottom of the support base. A pneumatic cylinder passes through the inside of the first support plate, and a pneumatic rod passes through the end of the pneumatic cylinder. A first spring is fixed to one end of the pneumatic rod located outside the pneumatic cylinder. A pressure sensor is installed on the side wall of the second support plate, and the pressure sensor is fixedly connected to the end of the first spring. A pneumatic assembly is connected to the pneumatic cylinder. When the support rod tilts, the pneumatic assembly is used to inflate the pneumatic cylinder.

3. A surveying station for land surveying according to claim 2, characterized in that, The pneumatic assembly includes a bracket that is fixedly connected to the side wall of the support rod and is symmetrically distributed. A support ring is fixed at the bottom of the bracket. An annular airbag is installed on the inner wall of the support ring. The annular airbag is connected to an air tube. The other end of the air tube is connected to a pneumatic cylinder. A traction rope is fixed at the bottom of the support rod. A load-bearing block is fixed at the bottom of the traction rope. A compression ball is fixed outside the traction rope. The compression ball is located inside the annular airbag.

4. A surveying station for land surveying according to claim 1, characterized in that, The fixing mechanism includes multiple cavities arranged circumferentially inside the support base. Each cavity is equipped with a stop plate, which is connected to the inner wall of the cavity via a second spring. An arc-shaped stop block is fixedly connected to each stop plate. The arc-shaped stop block is adapted to and abuts against the rotating ball. A clamping assembly is provided inside each cavity to clamp the arc-shaped stop block against the outer wall of the rotating ball.

5. A surveying station for land surveying according to claim 4, characterized in that, The clamping assembly includes a rotating ring disposed inside the support base. The outer wall of the rotating ring is provided with a plurality of symmetrically distributed arc-shaped sliders. The inner wall of the support base is provided with symmetrically distributed arc-shaped grooves adapted to the arc-shaped sliders. The ends of the arc-shaped sliders are located inside the arc-shaped grooves and are slidably connected thereto. A plurality of circumferentially distributed movable rods are rotatably connected to the inner wall of the rotating ring. The other ends of the movable rods extend into the cavity and are connected to the abutment plate. The rotating ring is connected to a rotating component, which is used to drive the rotating ring to rotate.

6. A surveying station for land surveying according to claim 5, characterized in that, The rotating component includes a plurality of teeth evenly distributed on the outer wall of the rotating ring, which mesh with a toothed plate. One end of the toothed plate passes through the support seat, and the other end of the toothed plate is connected to the inner wall of the support seat through a third spring. A limit rod is fixed on the inner wall of the support seat, and the limit rod extends into the toothed plate and slides in connection with the toothed plate. The toothed plate is connected to a positioning element, which is used to position the toothed plate.

7. A surveying station for land surveying according to claim 6, characterized in that, The positioning component includes a pin that penetrates the outer wall of the support base. The pin is connected to the outer wall of the support base via a fourth spring. The end of the pin abuts against the side wall of the toothed plate, and the side wall of the toothed plate is provided with a pin groove that matches the pin.

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