A land area measuring device for land and resources surveying and mapping

Abstract

The present invention relates to the technical field of land area measurement, and specifically relates to a land area measurement device for land and resources surveying and mapping, including a measurement mechanism and a mobile frame; mobile wheels are installed on the mobile frame; it also includes a housing, inside which a rotating column connected to the measuring tape of the measurement mechanism is rotatably provided; a descending mechanism, which is clamped with the mobile frame and is used to control the housing to move towards the ground when the measuring tape tilts upwards towards the rotating column in the measurement state. In the present invention, when the direction of the measuring tape facing the rotating column is in an upward state, the descending mechanism drives the entire housing to descend until the measuring tape is in a horizontal state. If the direction of the measuring tape facing the rotating column is in a downward state, the ascending mechanism drives the entire housing to ascend until the measuring tape is in a horizontal state. Thus, after the measuring tape reaches the measurement point, the state of the measuring tape is adjusted to the horizontal state, avoiding the influence of the inclined measuring tape on the accuracy of the measurement data.

Description

Technical Field

[0001] The present invention relates to the technical field of land area measurement, and particularly relates to a land area measurement device for land and resources surveying and mapping. Background Art

[0002] Before the utilization of land and resources, surveying and mapping are required, and there are many surveying and mapping methods, such as using total stations and measuring tapes. However, on some lands with a large number of crops and vegetation, the total station will be blocked by the crops and vegetation. Therefore, a measuring tape can be used for measurement. The outer shell of the measuring tape is fixed on the land, and then one end of the measuring tape is manually pulled and inserted at one end of the land to be measured. When used on some rugged ground such as mountains, one end of the measuring tape may be located in a depression or on a soil slope, which causes one end of the measuring tape to be lower or higher than the outer shell of the measuring tape, thereby tilting the entire measuring tape and resulting in inaccurate measurement results.

[0003] The Chinese invention application with the authorization announcement number CN117968499B proposes a measuring device for natural resource land management, including: a plugging cone and a support platform fixedly connected to the top of the plugging cone. A housing is fixedly connected to the top of the support platform. Through the cooperation of components such as a calibration plate in the above invention, when the knob is rotated, the knob drives the second bevel gear to rotate, thereby driving the first bevel gear to drive the single-thread screw rod to rotate, and then driving the L-shaped slide rod to drive the movable column to move upward, so as to adjust the calibration plate to align with the position where the infrared laser emitter emits infrared light, so that the measuring tape can be adjusted to be flush with the initial position, thereby improving the accuracy of the measuring tape for land measurement.

[0004] Although the above-mentioned prior art can make the position of the measuring tape flush with the initial position, it still needs to use infrared rays for calibration. During the process of infrared irradiation, it may still be blocked by vegetation and crops, thus affecting the accuracy of calibration. Summary of the Invention

[0005] The purpose of the present invention is to propose a land area measurement device for land and resources surveying and mapping in view of the problems in the background art.

[0006] The technical solution of the present invention: A land area measurement device for land and resources surveying and mapping includes a measuring mechanism and a moving frame; moving wheels are installed on the moving frame; and it further includes

[0007] a housing, inside which a rotating column connected to the measuring tape of the measuring mechanism is rotatably provided;

[0008] a descending mechanism, which is clamped with the moving frame and is used to control the housing to move towards the ground when the measuring tape tilts upward towards the rotating column during the measurement state;

[0009] Lifting mechanism, which is installed on the housing and connected to the lowering mechanism; the lifting mechanism includes an elastic telescopic component, a drain pipe component, a driving rod, a lifting part and a water tank; the elastic telescopic component is connected to the housing and the lowering mechanism; the water tank is installed on the upper end surface of the housing; the drain pipe component is installed inside the housing, its liquid inlet end is communicated with the water tank, and its liquid outlet end is provided with a switch component a; the lifting part is slidably connected to the drain pipe component; the driving rod is installed at an eccentric position at one end of the rotating column and is slidably connected to the lifting part for driving the lifting part to slide up and down in the rotating state of the rotating column; the drain pipe component is provided with a switch component b for communicating or blocking the drain pipe component during the sliding process of the lifting part; in the measurement state, the measuring mechanism is fixed to the ground. After the moving frame moves to the measurement point, if the measuring tape is inclined downward toward the rotating column, at this time the drain pipe component is in a communicating state, the switch component a is opened, and the water in the water tank is discharged through the drain pipe component. The housing moves toward the side away from the moving frame under the action of the elastic telescopic component until the drain pipe component is in a blocked state, at which time the measuring tape is in a horizontal state.

[0010] Preferably, the drain pipe component includes a through water pipe, a return pipe, an auxiliary pipe and an outlet pipe;

[0011] The switch component a is arranged at the liquid outlet end of the outlet pipe;

[0012] The return pipe is installed inside the housing, and a vertical section of the return pipe is slidably connected to the lifting part;

[0013] The two ends of the through water pipe are respectively communicated with a vertical section of the return pipe and the water tank; the liquid inlet end of the outlet pipe is communicated with another vertical section of the return pipe; there are two auxiliary pipes, and the two auxiliary pipes are communicated with the two horizontal sections of the return pipe; the switch component b and the auxiliary pipe are in one-to-one correspondence. When the central axes of the lifting part, the driving rod and the rotating column are in the same plane state, the blocking end of each switch component b slides in the auxiliary pipe and blocks the communication of the horizontal section of the return pipe.

[0014] Preferably, each switch component b includes a first spring, a blocking rod and a blocking part;

[0015] The central axis of the blocking rod coincides with the central axis of the auxiliary pipe, the blocking rod slides into the auxiliary pipe and is connected to the blocking part; the first spring is sleeved on the outer periphery of the blocking rod; the first spring is connected to the auxiliary pipe.

[0016] Preferably, the elastic telescopic component includes a second lifting spring, a fixed rod, a T-shaped pipe and a limiting unit;

[0017] The large end of the T-shaped pipe is connected to the lowering component; the second spring is sleeved on the outside of the T-shaped pipe, and the two ends of the second spring are respectively connected to the housing and the large end of the T-shaped pipe; one end of the fixed rod is connected to the housing, and the other end of the fixed rod slides into the T-shaped pipe;

[0018] The limiting unit is installed inside the housing. One end of the limiting unit extends into the fixing rod and is used to fix the fixing rod and the T-shaped tube when the side of the measuring tape facing the rotating column is in a horizontal state or an upward state.

[0019] Preferably, the limiting unit includes a first spring assembly, a control board, a control cylinder, and a locking plug;

[0020] The first spring assembly is installed inside the housing. There are two first spring assemblies, and both of the two first spring assemblies are connected to the control board;

[0021] The control cylinder is arranged on one side of the lifting part. The control cylinder is located between the two control boards. The locking plug extends into the fixing rod to fix the fixing rod and the T-shaped tube;

[0022] During measurement, when the direction of the measuring tape facing the rotating column is in a horizontal state and an upward state, the control cylinder is located at the protruding part of the control board. At this time, the locking plug extends into the fixing rod to fix the fixing rod and the T-shaped tube.

[0023] Preferably, the descending mechanism includes a bracket, a descending drill cylinder, a driving device, a second spring assembly, and a switch assembly c;

[0024] The bracket is clamped to the moving frame; the descending drill cylinder is rotatably connected to the bracket; the driving device is located inside the descending drill cylinder and is in transmission connection with the descending drill cylinder. The driving device is connected to the ascending assembly; there are multiple groups of the second spring assemblies. One end of each second spring assembly is connected to the bracket, and the other end of each second spring assembly is connected to the moving frame;

[0025] The switch assembly c is installed on the moving frame. When the switch assembly c is in the starting state, the clamping relationship between the bracket and the moving frame is released. The moving end of the switch assembly c presses the moving wheel tightly. The descending drill cylinder presses against the ground under the elastic force of the second spring assembly, and the driving device is energized to operate to drive the descending drill cylinder to rotate forward.

[0026] Preferably, the switch assembly c includes a turntable, a first fixed positive and negative electrode plate, a movable positive and negative electrode plate, a third spring, a limiting rod, a curved surface block, a pressing block, and a second fixed positive and negative electrode plate;

[0027] The limiting rod is slidably connected to the moving frame. The upper end of the limiting rod is connected to the curved surface block, and the lower end of the limiting rod is provided with a braking part; the third spring is sleeved outside the limiting rod, and the two ends of the third spring are respectively connected to the curved surface block and the moving frame;

[0028] The turntable is rotatably connected to the moving frame. One end of the turntable facing the curved surface block is connected to the pressing block; by rotating the turntable, the pressing block contacts the curved surface block to drive the limiting rod to move downward to compress the third spring until the braking part presses the moving wheel tightly;

[0029] There are two movable positive and negative plates. One movable positive and negative plate is connected to the turntable, and the other movable positive and negative plate is connected to the rotating column. The first set of fixed positive and negative plates is sleeved on the outer periphery of the turntable, and the first set of fixed positive and negative plates is connected inside the moving frame. The second set of fixed positive and negative plates is sleeved on the outer periphery of the rotating column, and the second set of fixed positive and negative plates is installed inside the housing.

[0030] Preferably, the switch assembly a includes a control cylinder, a fourth spring, a blocking block, a limiting block and a connecting rod; the liquid discharge end of the drain pipe assembly is communicated with the control cylinder, and the control cylinder is provided with a liquid discharge hole;

[0031] The blocking block is slidably installed in the control cylinder; one end of the connecting rod slides into the control cylinder and is connected to the blocking block; the fourth spring is located in the control cylinder and sleeved on the outer side of the connecting rod, and both ends of the fourth spring are respectively connected to the blocking block and the inner wall of the control cylinder (in the initial state, the blocking block is located at the connection between the control cylinder and the liquid discharge end of the drain pipe assembly), and the other end of the connecting rod is connected to the limiting block; the limiting block is fitted and clamped into the groove on the outer peripheral surface of the turntable;

[0032] Rotate the turntable, the limiting block moves out of the groove and pushes the connecting rod and the blocking block to move, and the fourth spring is stretched; the water in the drain pipe assembly enters the control cylinder and is discharged from the liquid discharge hole.

[0033] Preferably, it further includes a water outlet head; the water outlet head is cooperatively connected to the liquid discharge hole, and the liquid discharge direction of the water outlet head faces the descending drill pipe.

[0034] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects: After reaching the measurement point, rotate the turntable to lock the position of the moving wheel. If the measuring tape is in an upward state facing the direction of the rotating column, the rotating column flips so that the movable positive and negative plates in the inner cavity of the housing contact and conduct electricity with the second set of fixed positive and negative plates, and the first set of fixed positive and negative plates in the moving frame contacts and conducts electricity with the movable positive and negative plates. After the two groups are energized, at this time, the driving device is energized to drive the descending drill pipe to rotate forward, and at this time, the limit between the cavity plate and the moving frame is released, and then with the downward pressure of the second spring assembly, the descending drill pipe is driven to drill into the ground, so that the height of the housing is reduced until the measuring tape returns to the horizontal state. At this time, the rotating column drives the movable positive and negative plates in the inner cavity of the housing to separate from the second set of fixed positive and negative plates, and the driving device is powered off;

[0035] When the measuring tape faces the rotating column and slopes downward, the control cylinder is separated from the control plate. After the control plate loses its limit, the elastic force of the first spring assembly drives the locking plug rod to be pulled out from the inner cavity of the T-shaped tube, releasing the limit of the fixing rod and the T-shaped tube. And due to the rotation of the rotating column driving the movement of the lifting part, the lifting part drives the blocking rod to move in the inner cavity of the auxiliary tube, and the water in the inner cavity of the water tank is discharged from the water outlet head along the drain pipe assembly. As a result, the water in the water tank decreases, and the weight of the outer shell is reduced. At this time, the elastic force of the second spring drives the outer shell to rise to a horizontal state, and then the lifting part resets. At this time, the elastic force of the first spring drives the blocking rod to reset, blocking the water flow in the drain pipe assembly again, so that the water in the inner cavity of the water tank stops flowing out, stops descending, and keeps the outer shell in a horizontal state. Thus, when the outer shell reaches the measuring point and is on an uneven ground, the height of the outer shell can be automatically adjusted to keep the measuring tape in a horizontal state, avoiding the situation where the measuring tape is tilted and the measurement data is inaccurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the whole invention;

[0037] Figure 2 is a schematic diagram of the interior of the structural mounting frame of the invention;

[0038] Figure 3 For the present invention Figure 2 is an enlarged connection schematic diagram at position A in the invention;

[0039] Figure 4 is a schematic diagram of the interior of the structural outer shell of the invention;

[0040] Figure 5 For the present invention Figure 4 is an enlarged connection schematic diagram at position B in the invention;

[0041] Figure 6 is a schematic diagram of the position of the descending mechanism of the invention;

[0042] Figure 7 For the present invention Figure 6 is an enlarged connection schematic diagram at position C in the invention;

[0043] Figure 8 is a schematic diagram of the interior of the structural moving frame of the invention;

[0044] Figure 9 For the present invention Figure 8 is an enlarged connection schematic diagram at position D in the invention;

[0045] Figure 10 is a schematic diagram of the positional relationship between the structural curved surface block and the pressing block of the invention;

[0046] Figure 11 is a schematic diagram of the positional relationship between the structural limiting block and the turntable of the invention;

[0047] Reference numerals: 1, mounting frame; 2, mounting cylinder; 3, fixed insertion rod; 4, coil spring; 5, measuring tape; 6, housing; 7, rotating column; 8, driving rod; 9, lifting part; 10, water tank; 11, water pipe; 12, return pipe; 13, auxiliary pipe; 14, spring I; 15, blocking rod; 16, water outlet pipe; 17, water outlet head; 18, spring assembly I; 19, spring II; 20, control board; 21, control cylinder; 22, locking insertion rod; 23, fixed rod; 24, T-shaped pipe; 25, driving device; 26, descending drill cylinder; 27, socket ring; 28, cavity plate; 29, spring assembly II; 30, moving frame; 31, moving wheel; 32, turntable; 33, fixed positive and negative plate I; 34, movable positive and negative plate; 35, spring III; 36, limiting rod; 37, curved surface block; 38, control cylinder; 39, spring IV; 40, blocking block; 41, limiting block; 42, pressing block; 43, fixed positive and negative plate II. Detailed implementation mode

[0048] Embodiment 1, as Figures 1-11 shown, a land area measuring device for land resource surveying and mapping proposed by the present invention includes a housing 6, a descending mechanism, an ascending mechanism, a measuring mechanism and a moving frame 30; moving wheels 31 are installed on the moving frame 30;

[0049] A rotating column 7 connected to the measuring tape 5 of the measuring mechanism is rotatably arranged in the housing 6;

[0050] The measuring mechanism includes a mounting cylinder 2, the mounting cylinder 2 is sleeved outside the mounting frame 1, a fixed insertion rod 3 for fixing the mounting frame 1 is arranged at the bottom end of the mounting frame 1, a coil spring 4 is arranged in the inner cavity of the mounting frame 1, and a rotating shaft in the middle of the coil spring 4 is provided with a measuring tape 5; wherein, one end of the measuring tape 5 far from the rotating shaft is connected to the rotating column 7. Insert the fixed insertion rod 3 into the ground of one measuring point to fix the position of the mounting cylinder 2, and then the staff pulls the moving frame 30 to move to another measuring point. At this time, the measuring tape 5 in the inner cavity of the mounting frame 1 is pulled out through the rotating column 7, and the measuring tape 5 is always in a taut state by the elasticity of the coil spring 4.

[0051] The descending mechanism is clamped with the moving frame 30 and is used to control the housing 6 to move towards the ground when the measuring tape 5 tilts upward towards the rotating column 7 in the measuring state;

[0052] The lifting mechanism is installed on the outer shell 6 and is connected to the lowering mechanism; the lifting mechanism includes an elastic telescopic component, a drain pipe component, a driving rod 8, a lifting part 9 and a water tank 10; the elastic telescopic component is connected to the outer shell 6 and the lowering mechanism; the bottom end of the elastic telescopic component is connected to the lowering mechanism, and the top end of the elastic telescopic component is connected to the outer shell 6; the water tank 10 is installed on the upper end face of the outer shell 6; the drain pipe component is installed inside the outer shell 6, its liquid inlet end is communicated with the water tank 10, and its liquid discharge end is provided with a switch component a; the lifting part 9 is slidably connected to the drain pipe component; the driving rod 8 is installed at an eccentric position at one end of the rotating column 7 and is slidably connected to the lifting part 9 for driving the lifting part 9 to slide up and down in the state of the rotating column 7 rotating; the drain pipe component is provided with a switch component b for making the drain pipe component communicate or block during the sliding process of the lifting part 9; in the measurement state, the measuring mechanism is fixed to the ground. After the moving frame 30 moves to the measurement point, if the measuring tape 5 is inclined downward towards the rotating column 7, at this time the drain pipe component is in a communicating state, the switch component a is opened, and the water in the water tank 10 is discharged through the drain pipe component. The outer shell 6 moves towards the side away from the moving frame 30 under the action of the elastic telescopic component until the drain pipe component is in a blocked state, and at this time the measuring tape 5 is in a horizontal state.

[0053] In an alternative embodiment, the drain pipe component includes a through pipe 11, a return pipe 12, an auxiliary pipe 13 and a water outlet pipe 16;

[0054] The switch component a is arranged at the liquid discharge end of the water outlet pipe 16;

[0055] The return pipe 12 is installed inside the outer shell 6, and a vertical section of the return pipe 12 is slidably connected to the lifting part 9;

[0056] Both ends of the through pipe 11 are respectively communicated with a vertical section of the return pipe 12 and the water tank 10; the liquid inlet end of the water outlet pipe 16 is communicated with the other vertical section of the return pipe 12; there are two auxiliary pipes 13, and the two auxiliary pipes 13 are communicated with the two horizontal sections of the return pipe 12; the switch component b and the auxiliary pipe 13 are in one-to-one correspondence. When the central axes of the lifting part 9, the driving rod 8 and the rotating column 7 are in the same plane state, the blocking end of each switch component b is slidably located inside the auxiliary pipe 13 and blocks the communication of the horizontal section of the return pipe 12.

[0057] In an alternative embodiment, each switch component b includes a first spring 14, a blocking rod 15 and a blocking part;

[0058] The central axis of the blocking rod 15 coincides with the central axis of the auxiliary pipe 13. The blocking rod 15 slides into the auxiliary pipe 13 and is connected to the blocking part; the first spring 14 is sleeved on the outer periphery of the blocking rod 15; the first spring 14 is connected to the auxiliary pipe 13.

[0059] In an alternative embodiment, the elastic telescopic component includes a second lifting spring 19, a fixed rod 23, a T-shaped pipe 24 and a limiting unit;

[0060] The large end of the T-shaped tube 24 is connected to the descending assembly; the second spring 19 is sleeved outside the T-shaped tube 24, and both ends of the second spring 19 are respectively connected to the housing 6 and the large end of the T-shaped tube 24; one end of the fixing rod 23 is connected to the housing 6, and the other end of the fixing rod 23 is slidably inserted into the T-shaped tube 24;

[0061] The limiting unit is installed in the housing 6, and one end of the limiting unit extends into the fixing rod 23 for fixing the fixing rod 23 and the T-shaped tube 24 when the side of the measuring tape 5 facing the rotating column 7 is in a horizontal state or an upward state.

[0062] In an optional embodiment, the limiting unit includes a first spring assembly 18, a control board 20, a control cylinder 21 and a locking plug 22;

[0063] The first spring assembly 18 is installed in the housing 6, and there are two first spring assemblies 18, and both first spring assemblies 18 are connected to the control board 20;

[0064] The control cylinder 21 is arranged on one side of the lifting part 9, the control cylinder 21 is located between the two control boards 20, and the locking plug 22 extends into the fixing rod 23 to fix the fixing rod 23 and the T-shaped tube 24;

[0065] During measurement, when the side of the measuring tape 5 facing the rotating column 7 is in a horizontal state and an upward state, the control cylinder 21 is located at the protruding part of the control board 20, and the first spring assembly 18 is in a compressed state. At this time, the locking plug 22 extends into the fixing rod 23 to fix the fixing rod 23 and the T-shaped tube 24.

[0066] In the present invention, when the moving frame 30 reaches another measurement point, the switch assembly a is turned to lock and fix the position of the moving wheel 31, and the liquid discharge end of the water outlet pipe 16 is made to penetrate. If the side of the measuring tape 5 facing the rotating column 7 is downward, at this time, the rotating column 7 drives the driving rod 8 to turn downward, and the driving rod 8 drives the lifting part 9 to move downward along the vertical section of the return pipe 12. At this time, the control cylinder 21 is separated from the protruding parts of the two control boards 20. At this time, the elasticity of the first spring assembly 18 drives the two control boards 20 to move towards the control cylinder 21, thereby driving the locking plug 22 at the bottom end of the control board 20 to be pulled out from the T-shaped tube 24, releasing the fixation of the fixing rod 23 and the T-shaped tube 24;

[0067] And due to the downward movement of the lifting part 9, the blocking rod 15 is driven to move towards the auxiliary pipe 13. At this time, the blocking part leaves the connection between the return pipe 12 and the auxiliary pipe 13, and the water in the inner cavity of the water tank 10 is discharged from the water outlet pipe 16 along the water pipe 11 and the return pipe 12 under the action of gravity;

[0068] When the water in the inner cavity of the water tank 10 decreases, the housing 6 is driven to rise by the elasticity of the spring 2 19, and the housing 6 is positioned and guided by the fixing rod 23 and the T-shaped tube 24, thereby driving the end of the measuring tape 5 facing the rotating column 7 to rise, so that the end of the measuring tape 5 facing the rotating column 7 gradually becomes horizontal, and at this time the rotating column 7 also rotates and returns to the horizontal state;

[0069] When the rotating column 7 is in a horizontal state, the elasticity of the spring 14 drives the blocking rod 15 to reset, and then the blocking rod 15 drives the blocking part to reset in the inner cavity of the auxiliary pipe 13, thereby blocking the connection between the auxiliary pipe 13 and the circular pipe 12, so that the water in the inner cavity of the water tank 10 stops being discharged. At this time, the weight of the outer shell 6 does not decrease, so that the elasticity of the spring 2 19 and the weight of the outer shell 6 reach a balance at this time, and then the outer shell 6 stops rising, so that when the measuring point is located on an uneven ground such as a depression, the measuring belt 5 is prevented from tilting downward, which affects the measurement accuracy.

[0070] Embodiment 2, as Figures 1-6 ,as well as Figures 8-11 As shown, the land area measuring device for land resources surveying and mapping proposed by the present invention, compared with the first embodiment, the descending mechanism in this embodiment includes a bracket, a descending drill tube 26, a driving device 25, a spring component 29 and a switch component c;

[0071] The bracket is connected to the movable frame 30; the descending drill tube 26 is rotatably connected to the bracket; the driving device 25 is located in the descending drill tube 26 and is transmission-connected to the descending drill tube 26, and the driving device 25 is connected to the ascending component; the spring component 29 is provided with multiple groups, one end of the spring component 29 is connected to the bracket, and the other end of the spring component 29 is connected to the movable frame 30; the spring component 29 is composed of a telescopic rod and a spring five, and the telescopic rod is located at the center of the inner cavity of the spring five.

[0072] The switch assembly c is installed on the mobile frame 30. When the switch assembly c is in the started state, the clamping relationship between the bracket and the mobile frame 30 is released, the moving end of the switch assembly c presses the moving wheel 31, and the descending drill tube 26 is pressed against the ground under the elastic force of the spring assembly 29. The driving device 25 is energized to drive the descending drill tube 26 to rotate forward.

[0073] Embodiment three, as Figures 1-11 As shown, the land area measuring device for land resources surveying and mapping proposed by the present invention, compared with the second embodiment, the specific structures of the switch component c and the switch component a are also recorded in detail in this embodiment; the switch component c includes a rotating disk 32, a fixed positive and negative plate 1 33, a movable positive and negative plate 34, a spring 35, a limit rod 36, a curved block 37, a pressing block 42 and a fixed positive and negative plate 2 43;

[0074] The limiting rod 36 is slidably connected to the moving frame 30. The upper end of the limiting rod 36 is connected to the curved surface block 37, and the lower end of the limiting rod 36 is provided with a braking portion; the third spring 35 is sleeved outside the limiting rod 36, and both ends of the third spring 35 are respectively connected to the curved surface block 37 and the moving frame 30;

[0075] The turntable 32 is rotatably connected to the moving frame 30, and one end of the turntable 32 facing the curved surface block 37 is connected to the pressing block 42; by rotating the turntable 32, the pressing block 42 contacts the curved surface block 37 to drive the limiting rod 36 to move downward and compress the third spring 35 until the braking portion presses tightly against the moving wheel 31;

[0076] There are two movable positive and negative plates 34. One movable positive and negative plate 34 is connected to the turntable 32, and the other movable positive and negative plate 34 is connected to the rotating column 7. The first fixed positive and negative plate 33 is sleeved on the outer periphery of the turntable 32, and the first fixed positive and negative plate 33 is connected inside the moving frame 30. The second fixed positive and negative plate 43 is sleeved on the outer periphery of the rotating column 7, and the second fixed positive and negative plate 43 is installed in the housing 6;

[0077] As Figure 3 and Figure 10 shown, there are two movable positive and negative plates 34. One movable positive and negative plate 34 is connected to the turntable 32, and the other movable positive and negative plate 34 is connected to the rotating column 7. The first fixed positive and negative plate 33 is sleeved on the outer periphery of the turntable 32, and the first fixed positive and negative plate 33 is connected inside the moving frame 30. The second fixed positive and negative plate 43 is sleeved on the outer periphery of the rotating column 7, and the second fixed positive and negative plate 43 is installed in the housing 6; The first fixed positive and negative plate 33, the movable positive and negative plate 34, and the second fixed positive and negative plate 43 are electrically connected;

[0078] By rotating the turntable 32, when the pressing block 42 contacts the curved surface block 37 to drive the limiting rod 36 to press tightly against the moving wheel 31, and when the measuring tape 5 is in an upward state in the direction towards the rotating column 7, at this time, the side of the rotating column 7 close to the second fixed positive and negative plate 43 shows an upward flipping state. At this time, the movable positive and negative plate 34 inside the housing 6 is connected to the second fixed positive and negative plate 43. Then, by rotating the turntable 32, the first fixed positive and negative plate 33 inside the moving frame 30 is connected to the movable positive and negative plate 34. At this time, the driving device 25 can be powered on and rotate forward. And under the pulling force of the second spring assembly 29, it drives the lowering drill cylinder 26 below the socket ring 27 to descend. Then, through the rotation of the lowering drill cylinder 26, the lowering drill cylinder 26 drills into the ground, thereby reducing the height of the housing 6 until the direction of the measuring tape 5 towards the rotating column 7 becomes horizontal. When the measuring tape 5 becomes horizontal, the rotating column 7 also resets to the horizontal state. At this time, the second fixed positive and negative plate 43 and the movable positive and negative plate 34 inside the housing 6 are separated, thereby cutting off the power supply, and at this time, the driving device 25 stops operating.

[0079] The switch assembly a includes a control cylinder 38, a fourth spring 39, a blocking block 40 and a limiting block 41; the liquid discharge end of the drain pipe assembly is communicated with the control cylinder 38, and the fourth spring 39 is connected inside the control cylinder 38; one end of the blocking block 40 slides into the control cylinder 38 and is elastically connected through the fourth spring 39; the limiting block 41 is connected to the other end of the blocking block 40, and the limiting block 41 is clamped inside the turntable 32.

[0080] In an alternative embodiment, the drain pipe assembly further includes a water outlet head 17; the water outlet head 17 is located outside the descending drill pipe 26, and the water outlet head 17 is inclined towards the descending drill pipe 26.

[0081] In summary, in the present invention, after the moving frame 30 moves the measuring point, if the side of the measuring tape 5 facing the rotating column 7 is tilted upward, at this time, the rotating column 7 will flip upward to drive the movable positive and negative plates 34 connected to the rotating column 7 to contact the fixed positive and negative plates II 43, and at this time, the movable positive and negative plates 34 and the fixed positive and negative plates II 43 are connected;

[0082] Then rotate the turntable 32 so that the fixed positive and negative plates I 33 on the turntable 32 contact and connect with the movable positive and negative plates 34. At this time, the movable positive and negative plates 34 on the rotating column 7 and the fixed positive and negative plates II 43 are connected, and the fixed positive and negative plates I 33 on the turntable 32 and the movable positive and negative plates 34 are connected. After the two groups are connected, the driving device 25 is started to drive the descending drill pipe 26 to rotate forward;

[0083] The limiting block 41 is extruded from the inner cavity of the turntable 32, and the limiting block 41 moves towards the blocking block 40, thereby releasing the limit between the moving frame 30 and the cavity plate 28. At this time, the descending drill pipe 26 at the bottom end of the socket ring 27 is driven to move downward by the pulling force of the second spring assembly 29, and then by the forward rotation of the descending drill pipe 26, the descending drill pipe 26 is driven to drill into the ground, thereby reducing the height of the outer shell 6. When the measuring tape 5 is in a horizontal state, the rotating column 7 resets, so that the fixed positive and negative plates I 33 and the fixed positive and negative plates II 43 on the rotating column 7 are disconnected, thereby cutting off the power supply of the driving device 25, so as to realize that when the measuring point is on a higher ground, the height of the outer shell 6 can be automatically reduced, so that the measuring tape 5 is always in a horizontal state

[0084] When the end of the blocking block 40 away from the limiting block 41 leaves the connection between the control cylinder 38 and the water outlet pipe 16, the water inside the water outlet pipe 16 is discharged from the water outlet head 17 and is poured on the ground below the descending drill pipe 26 to moisten the ground below the descending drill pipe 26, thereby avoiding the generation of more soil dust when the descending drill pipe 26 drills into the ground;

[0085] At this time, since the direction of the measuring tape 5 towards the rotating column 7 is upward, the rotating column 7 will only drive the lifting part 9 to move upward, and the control cylinder 21 cannot leave the protruding parts of the two control plates 20, so that the locking plug 22 limits and locks the fixing rod 23 and the T-shaped pipe 24;

[0086] After the measurement is completed, the staff can control the driving device 25 to drive the descending drill cylinder 26 to reverse through a control device such as an external controller, and pull the moving frame 30 upward.

[0087] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to this, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge of those skilled in the art.

Claims

1. A land area measuring device for land resources surveying and mapping, comprising a measuring mechanism and a moving frame (30); a moving wheel (31) is mounted on the moving frame (30); the device is characterized in that: Also includes A housing (6) in which a rotating column (7) connected to a measuring belt (5) of a measuring mechanism is rotatably disposed; A descending mechanism, which is engaged with the moving frame (30) and is used to control the housing (6) to move toward the ground when the measuring belt (5) is tilted upward toward the rotating column (7) in a measuring state; The ascending mechanism is mounted on the housing (6) and connected to the descending mechanism; the ascending mechanism comprises an elastic telescopic component, a drainage pipe component, a driving rod (8), a lifting part (9) and a water tank (10); the elastic telescopic component connects the housing (6) and the descending mechanism; the water tank (10) is mounted on the upper end surface of the housing (6); the drainage pipe component is mounted in the housing (6), the liquid inlet end of the drainage pipe component is connected to the water tank (10), and the liquid discharge end of the drainage pipe component is provided with a switch component a; the lifting part (9) is slidably connected to the drainage pipe component; the driving rod (8) is mounted at an eccentric position at one end of the rotating column (7) and is slidably connected to the lifting part (9) for adjusting the rotation of the rotating column (7) In the state, the lifting part (9) is driven to slide up and down; the drain pipe assembly is provided with a switch assembly b for connecting or blocking the drain pipe assembly during the sliding process of the lifting part (9); in the measuring state, the measuring mechanism is fixed to the ground, and after the movable frame (30) moves to the measuring point, if the measuring belt (5) tilts downward toward the rotating column (7), the drain pipe assembly is in the connected state, the switch assembly a is turned on, the water in the water tank (10) is discharged from the drain pipe assembly, and the housing (6) moves toward the side away from the movable frame (30) under the action of the elastic telescopic assembly until the drain pipe assembly is in the blocked state, and the measuring belt (5) is in the horizontal state.

2. A land area measuring device for land resources surveying and mapping according to claim 1, characterized in that: The drainage pipe assembly comprises a water pipe (11), a return pipe (12), an auxiliary pipe (13) and a water outlet pipe (16); The switch assembly a is arranged at the liquid outlet end of the water outlet pipe (16); The circular tube (12) is installed in the housing (6), and a vertical section of the circular tube (12) is slidably connected to the lifting part (9); The two ends of the water pipe (11) are respectively connected to the water tank (10) and a vertical section of the loop-shaped pipe (12); the liquid inlet end of the water outlet pipe (16) is connected to the other vertical section of the loop-shaped pipe (12); two auxiliary pipes (13) are provided, and the two auxiliary pipes (13) are connected to the two horizontal sections of the loop-shaped pipe (12); the switch components b and the auxiliary pipes (13) correspond one to one, and the central axes of the lifting part (9), the driving rod (8) and the rotating column (7) are in the same plane state, and the blocking end of each switch component b is slidably located in the auxiliary pipe (13) and blocks the connection of the horizontal section of the loop-shaped pipe (12).

3. A land area measuring device for land resources surveying and mapping according to claim 2, characterized in that: Each switch assembly b comprises a spring 1 (14), a blocking rod (15) and a blocking portion; The central axis of the blocking rod (15) coincides with the central axis of the auxiliary tube (13); the blocking rod (15) slides into the auxiliary tube (13) and is connected to the blocking portion; the spring (14) is sleeved on the outer periphery of the blocking rod (15); and the spring (14) is connected to the auxiliary tube (13).

4. A land area measuring device for land resources surveying and mapping according to claim 2 or 3, characterized in that: The elastic telescopic component comprises a second lifting spring (19), a fixing rod (23), a T-shaped tube (24) and a limiting unit; The large end of the T-shaped tube (24) is connected to the descending assembly; the second spring (19) is sleeved on the outside of the T-shaped tube (24), and the two ends of the second spring (19) are respectively connected to the housing (6) and the large end of the T-shaped tube (24); one end of the fixing rod (23) is connected to the housing (6), and the other end of the fixing rod (23) is slidably inserted into the T-shaped tube (24); The limit unit is installed in the housing (6), and one end of the limit unit extends into the fixing rod (23) to fix the fixing rod (23) and the T-shaped tube (24) when the side of the measuring belt (5) facing the rotating column (7) is in a horizontal state or an upward state.

5. The land area measuring device for land resources surveying and mapping according to claim 4, characterized in that: The limiting unit comprises a spring assembly 1 (18), a control plate (20), a control cylinder (21) and a locking plug rod (22); The spring assembly (18) is installed in the housing (6), two spring assemblies (18) are provided, and both spring assemblies (18) are connected to the control board (20); The control cylinder (21) is disposed on one side of the lifting portion (9), and the control cylinder (21) is located between the two control plates (20). The locking rod (22) extends into the fixing rod (23) to fix the fixing rod (23) and the T-shaped tube (24). During measurement, when the measuring belt (5) is in a horizontal state and an upward state toward the rotating column (7), the control cylinder (21) is located at the protruding portion of the control plate (20), and the locking rod (22) extends into the fixing rod (23) to fix the fixing rod (23) and the T-shaped tube (24).

6. The land area measuring device for land resources surveying and mapping according to claim 4, characterized in that: The descending mechanism comprises a bracket, a descending drill tube (26), a driving device (25), a spring assembly 2 (29) and a switch assembly C; The bracket is clamped to the movable bracket (30); the descending drill tube (26) is rotatably connected to the bracket; the driving device (25) is located in the descending drill tube (26) and is transmission-connected to the descending drill tube (26), and the driving device (25) is connected to the ascending component; the spring component 2 (29) is provided with a plurality of groups, one end of the spring component 2 (29) is connected to the bracket, and the other end of the spring component 2 (29) is connected to the movable bracket (30); The switch assembly c is mounted on the moving frame (30). When the switch assembly c is in the activated state, the clamping relationship between the bracket and the moving frame (30) is released, the moving end of the switch assembly c presses the moving wheel (31), the descending drill tube (26) is pressed against the ground under the elastic force of the second spring assembly (29), and the driving device (25) is powered on to drive the descending drill tube (26) to rotate forward.

7. A land area measuring device for land resources surveying and mapping according to claim 6, characterized in that: The switch assembly c comprises a rotating disk (32), a fixed positive and negative electrode plate 1 (33), movable positive and negative electrode plates (34), a spring 3 (35), a limit rod (36), a curved surface block (37), a pressing block (42) and a fixed positive and negative electrode plate 2 (43); The limiting rod (36) is slidably connected to the moving frame (30), the upper end of the limiting rod (36) is connected to the curved surface block (37), and the lower end of the limiting rod (36) is provided with a brake portion; the spring three (35) is sleeved on the outer side of the limiting rod (36), and the two ends of the spring three (35) are respectively connected to the curved surface block (37) and the moving frame (30); The rotating disk (32) is rotatably connected to the moving frame (30), and one end of the rotating disk (32) facing the curved surface block (37) is connected to the pressing block (42); the rotating disk (32) is rotated, and the pressing block (42) and the curved surface block (37) are in contact, driving the limit rod (36) to move downward to compress the spring three (35) until the brake part presses the moving wheel (31); Two movable positive and negative electrode plates (34) are provided, one movable positive and negative electrode plate (34) is connected to the rotating disk (32), and the other movable positive and negative electrode plate (34) is connected to the rotating column (7); the fixed positive and negative electrode plate (33) is sleeved on the outer periphery of the rotating disk (32); the fixed positive and negative electrode plate (33) is connected to the movable frame (30); the fixed positive and negative electrode plate (43) is sleeved on the outer periphery of the rotating column (7); and the fixed positive and negative electrode plate (43) is installed in the outer shell (6).

8. The land area measuring device for land resources surveying and mapping according to claim 7, characterized in that: The switch assembly a comprises a control cylinder (38), a spring four (39), a blocking block (40), a limit block (41) and a connecting rod; the discharge end of the drainage pipe assembly is connected to the control cylinder (38), and the control cylinder (38) is provided with a discharge hole; The blocking block (40) is slidably installed in the control cylinder (38); one end of the connecting rod is slidably inserted into the control cylinder (38) and connected to the blocking block (40); a spring (39) is located in the control cylinder (38) and sleeved on the outside of the connecting rod, and the two ends of the spring (39) are respectively connected to the blocking block (40) and the inner wall of the control cylinder (38). In an initial state, the blocking block (40) is located at the connection point between the control cylinder (38) and the discharge end of the drain pipe assembly, and the other end of the connecting rod is connected to the limit block (41); the limit block (41) is fitted into a groove on the outer peripheral surface of the rotating disk (32); The rotating disk (32) is rotated, and the limiting block (41) is moved out of the groove to push the connecting rod and the blocking block (40) to move, and the spring four (39) is stretched; the water in the drainage pipe assembly enters the control cylinder (38) and is discharged from the drainage hole.

9. The land area measuring device for land resources surveying and mapping according to claim 7, characterized in that: It also includes a water outlet head (17); the water outlet head (17) is connected to the drainage hole, and the liquid outlet direction of the water outlet head (17) is toward the descending drill tube (26).

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