Land resource measurement point fixing device

Abstract

The invention relates to the technical field of land measurement, in particular to a land resource measurement point fixing device. The stability and accuracy of a calibration point position can be improved, operation is convenient and fast, the construction period is effectively shortened, and the land fixed point calibration efficiency is improved; comprising a hollow label tube, a cart, a frame body installed on the cart, a first lifting seat installed on the frame body in an up-and-down sliding mode and a press-in bottom digging mechanism installed on the first lifting seat, and a first lifting driver for providing power for up-and-down lifting of the first lifting seat is installed on the frame body; the press-in bottom digging mechanism comprises a vertical frame, a clamping press-in device installed at the bottom of the vertical frame, a second lifting base installed on the first lifting base in an up-down sliding mode and a bottom expanding soil digging device installed on the second lifting base, and a second lifting driver for providing power for lifting of the second lifting base is installed on the vertical frame. The clamping press-in device is used for clamping and limiting the top end part of the hollow label tube; the bottom-expanding soil digging device is used for rotary digging of soil pressed into the soil and below the hollow standard pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of land surveying, and particularly to a land resource survey and positioning device. Background Art

[0002] Geological exploration and demarcation, abbreviated as exploration and demarcation, is an important technical service work. It aims to meet the actual needs of land expropriation, requisition, transfer, transfer by assignment, conversion of agricultural land, land use planning, and land development, consolidation, and reclamation, etc. During the exploration and demarcation process, a measuring and positioning device is required to mark the measuring points, so as to subsequently demarcate the land use scope on the spot, accurately determine the boundary location, detail the mapping of the current land use situation, and calculate the land area.

[0003] For example, Chinese invention patent CN117647234B discloses a positioning device for land management measurement, including a housing. Two bottom plates are symmetrically and fixedly connected to the bottom of the housing. Brackets are fixedly connected to the surfaces of the two bottom plates. A first conveyor chain and a second conveyor chain are respectively fixedly installed on the end surfaces of the two brackets. It inserts the benchmark into the soil at the positioning mark through a pressing block, which is time-saving and labor-saving during the process of inserting the benchmark into the land, improves the inserting speed of the rod, and also improves the land measurement efficiency.

[0004] However, when the inventor specifically implemented this device, it was found that there were the following defects: the benchmark was easily loosened and displaced when inserted into the soil, resulting in inaccurate subsequent land area measurement, and it was not suitable for calibration of exploration and demarcation of permanent farmland, etc.; while the commonly used landfill type boundary stakes had certain stability, but the construction period was long and the land positioning and calibration efficiency was low. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a land resource survey and positioning device that improves the stability and accuracy of the positioning point, is convenient to operate, effectively shortens the construction period, and improves the land positioning and calibration efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a land resource measurement and positioning device, comprising a hollow marking tube, a cart, a frame installed on the cart, a first lifting seat installed on the frame for sliding up and down, and a pressing and digging mechanism installed on the first lifting seat, the frame is equipped with a first lifting driver that provides power for the first lifting seat to lift up and down; the pressing and digging mechanism comprises a vertical frame, a clamping and pressing device installed at the bottom of the vertical frame, a second lifting seat installed on the first lifting seat for sliding up and down, and a bottom expanding and digging device installed on the second lifting seat, the vertical frame is equipped with a second lifting driver that provides power for the second lifting seat to lift and lower, the clamping and pressing device is used for clamping and limiting the top end of the hollow marking tube; the bottom expanding and digging device is used for pressing into the soil below the hollow marking tube in the soil for rotary digging; further, the cart is provided with a rotary digging device that allows the hollow marking tube to be lowered. The frame body is provided with a guide column through the opening, and the first lifting seat is installed on the guide column for sliding up and down; the vertical frame is provided with a slide rail, and the second lifting seat is installed on the slide rail for sliding up and down; the first lifting driver and the second lifting driver are preferably telescopic cylinders, and other equivalent parts that can drive the first lifting seat or the second lifting seat to move up and down can also be used; the clamping press can use a tiger's mouth clamp or a mechanical clamp to clamp the top end of the hollow standard tube; the hollow standard tube can be inserted into the soil through the bottom expander to dig out a cavity with an inner diameter greater than the outer diameter of the hollow standard tube below one end, and a liquid preparation that can quickly cure and expand is added into the cavity through the hollow standard tube. After the liquid preparation cures and expands, a seat pier is formed; such as quick-drying epoxy resin, RTV silicone rubber, polyurethane curing glue, acrylate glue, fast-curing polyester resin, fast-curing cement substrate, etc.

[0007] Preferably, the bottom expansion excavator includes a soil guide tube rotatably mounted on the second lifting seat, a motor providing power for the rotation of the soil guide tube, and an outward expansion excavation mechanism installed at the bottom of the soil guide tube, the outward expansion excavation mechanism includes a plurality of outward expansion supports, a soil breaking cone, and a plurality of connecting rods hingedly mounted on the outer wall of the soil guide tube, one end of the connecting rod is hinged to the corresponding outward expansion support, the other end of the connecting rod is hinged to the soil breaking cone, the outer diameter of the soil breaking cone matches the inner diameter of the hollow standard tube, a scraper is installed on the outward expansion support, and a spiral conveying blade is provided in the soil guide tube. Further, the motor is fixedly mounted on the second lifting seat, the output shaft of the motor is rotatably connected to the soil guide tube through a transmission chain or a transmission belt, a plurality of outward expansion supports are evenly distributed around the circumference of the soil guide tube, a pipe rack with a feed port is installed on the top of the soil breaking cone, and the bottom of the connecting rod is hinged to the pipe rack.

[0008] Preferably, a cross brace is fixedly mounted on the middle and upper part of the outward expansion support, and a ball is rotatably mounted on the end of the cross brace, and the cross brace is in rotational contact with the inner wall of the hollow standard tube through the ball.

[0009] Preferably, a positioning mandrel extending into the soil guiding pipe is fixedly installed on the second lifting seat. A spiral conveying channel is formed between the outer wall of the positioning mandrel, the inner wall of the soil guiding pipe, and the spiral conveying blade. The outer wall of the positioning mandrel is in rotational contact with the spiral conveying blade; further, the central axes of the positioning mandrel, the soil guiding pipe, and the soil breaking cone are collinear.

[0010] Preferably, a soil discharging hopper with one end extending outward and downwardly inclined to the outside of the soil guiding pipe is fixedly installed on the second lifting seat, and the soil guiding pipe penetrates through the soil discharging hopper; further, the soil guiding pipe is rotationally and sealingly connected to the soil discharging hopper through a filler or the like.

[0011] Preferably, a preparation adding mechanism is further included. The preparation adding mechanism includes two storage tanks, a third lifting seat slidably installed up and down on the first lifting seat, two adding pumps installed on the third lifting seat, and an injection pipe. The input end of the adding pump extends into the inner bottom of the corresponding storage tank, the output end of the adding pump is communicated with the top input end of the injection pipe, a spiral guide blade is arranged in the injection pipe, a third lifting driver for providing power for the up and down movement of the third lifting seat is installed on the first lifting seat, the frame is slidably installed on the trolley, and a transverse moving pusher for providing power for the sliding of the frame is installed on the trolley; further, the injection pipe is detachably installed on the third lifting seat; the third lifting driver is preferably a telescopic cylinder, and other equivalent parts capable of driving the third lifting driver to move up and down can also be used; a slide rail is arranged on the trolley, the frame is slidably installed on the slide rail, the transverse moving pusher is preferably a motor and a chain, a sprocket is rotatably installed on the trolley, one end of the chain is sleeved on the sprocket, the other end of the chain is sleeved on the output end of the motor, and the chain is fixedly connected to the frame; the transverse moving pusher can also be other equivalent parts such as a telescopic cylinder capable of driving the frame to move.

[0012] Preferably, a rotating table is fixedly installed on the trolley, a turntable is installed on the rotating table, and a plurality of circumferentially uniformly distributed elastic clamping members are arranged on the turntable for elastically clamping the hollow marking tube; further, the elastic clamping member is preferably an elastic clamp, and other equivalent parts having the clamping effect on the hollow marking tube can also be used as the elastic clamping member.

[0013] Preferably, a marking cover is further included, and the marking cover is screwed on the top end port of the hollow marking tube, and an annular flange is arranged at the top of the hollow marking tube; further, a cross mark and a plurality of ring marks with gradually increasing inner diameters are arranged on the marking cover, and coordinate points or warning slogans can also be engraved on the marking cover.

[0014] Preferably, the clamping and pressing device is a thumb clamp, and a pressing portion and a plurality of clamping blocks are arranged at the clamping end of the thumb clamp; further, the plurality of clamping blocks are circumferentially uniformly distributed around the annular flange, and the bottom of the pressing portion is in close contact with the top of the annular flange.

[0015] Beneficial effects: Compared with the prior art, the present invention provides a land resource measurement and positioning device, which has the following beneficial effects: The land resource measurement and positioning device clamps and fixes the end of the hollow marking tube through a clamping and pressing device. The first lifting driver drives the first lifting seat to move downward, so that the hollow marking tube is inserted into the soil at the point to be marked. Subsequently, the second lifting driver drives the bottom-expanding soil scooping device to move below the hollow marking tube. The bottom-expanding soil scooping device digs out a cavity with an inner diameter larger than the outer diameter of the hollow marking tube at the bottom of the hollow marking tube, and a liquid preparation that can be quickly solidified and expanded is injected into the cavity through the hollow marking tube. After the liquid preparation is solidified and expanded, a seat pier is formed; under the action of the seat pier, the installation stability of the hollow marking tube in the soil can be greatly improved; there is no need to carry out large-scale excavation of the soil, the operation is convenient, the construction period can be effectively shortened, and the land positioning and marking efficiency can be improved. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a front-view plane structural schematic diagram of the present invention; Figure 3 is the Figure 2 cross-sectional structural schematic diagram at A-A of the present invention; Figure 4 is another perspective three-dimensional structural schematic diagram of the present invention; Figure 5 is a three-dimensional structural schematic diagram of the bottom-expanding soil scooping device in the unfolded state of the present invention; Figure 6 is a structural schematic diagram of the positional relationship among the identification cover, the hollow marking tube and the seat pier of the present invention; Figure 7 is the Figure 1 local enlarged structural schematic diagram at B of the present invention; Figure 8 is the Figure 1 local enlarged structural schematic diagram at C of the present invention; Figure 9 is the Figure 3 local enlarged structural schematic diagram at D of the present invention; Figure 10 is the Figure 3 local enlarged structural schematic diagram at E of the present invention; Figure 11 is the Figure 3 local enlarged structural schematic diagram at F of the present invention; Reference numerals in the drawings: 1, hollow marking tube; 2, trolley; 3, frame body; 4, first lifting seat; 5, first lifting driver; 6, vertical frame; 7, second lifting seat; 8, second lifting driver; 9, soil guiding tube; 10, motor; 11, outer expansion support; 12, soil breaking cone; 13, connecting rod; 14, scraper; 15, spiral conveying blade; 16, cross brace; 17, ball; 18, positioning mandrel; 19, soil discharge hopper; 20, storage tank; 21, third lifting seat; 22, filling pump; 23, injection pipe; 24, spiral guide blade; 25, third lifting driver; 26, transverse movement pusher; 27, rotating table; 28, elastic clamping member; 29, identification cover; 30, annular edge plate; 31, thumb clamp; 32, pressing part; 33, clamping block; 34, seat pier; 35, turntable. Detailed implementation manners

[0017] In order to enable those skilled in the art of the present technology to better understand the invention solution, the technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments in the invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the invention.

[0018] As described in the background art, for a fixed-point marker used in land management measurement, when the benchmark is inserted into the soil, it is easy to loosen and shift, resulting in inaccurate subsequent land area measurement, and it is not suitable for the calibration of boundary demarcation such as permanent farmland; although the commonly used landfill boundary stakes have a certain degree of stability, the construction period is long and the fixed-point calibration efficiency of the land is low.

[0019] To solve this technical problem, the present invention provides a land resource measurement fixed-point device, which is applied to the fixed-point marking of land measurement.

[0020] It should be noted that, without conflict, the embodiments in the invention and the features and technical solutions in the embodiments can be combined with each other.

[0021] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] Embodiment 1: Please refer to Figure 1-4, a land resource measurement and positioning device, which includes a hollow mark tube 1, a cart 2, a frame 3 installed on the cart 2, a first lifting seat 4 installed on the frame 3 for sliding up and down, and a pressing and digging mechanism installed on the first lifting seat 4, the frame 3 is equipped with a first lifting driver 5 that provides power for the first lifting seat 4 to move up and down; the pressing and digging mechanism includes a vertical frame 6, a clamping and pressing device installed at the bottom of the vertical frame 6, a second lifting seat 7 installed on the first lifting seat 4 for sliding up and down, and a bottom digging device installed on the second lifting seat 7, the vertical frame 6 is equipped with a second lifting driver 8 that provides power for the second lifting seat 7 to move up and down, the clamping and pressing device is used for clamping and limiting the top end of the hollow mark tube 1; the bottom digging device is used for pressing into the soil below the hollow mark tube 1 in the soil for rotary digging; further, the cart 2 is provided with an opening that allows the hollow mark tube 1 to pass through, A guide column is provided on the frame 3, and the first lifting seat 4 is installed on the guide column so as to slide up and down; a slide rail is provided on the vertical frame 6, and the second lifting seat 7 is installed on the slide rail so as to slide up and down; the first lifting driver 5 and the second lifting driver 8 are preferably telescopic cylinders, and other equivalent parts that can drive the first lifting seat 4 or the second lifting seat 7 to move up and down can also be used; the clamping press can use a tiger's mouth clamp or a mechanical clamp or the like to clamp the top end of the hollow standard tube 1; the hollow standard tube 1 can be inserted into the soil through a bottom expander to dig out a cavity with an inner diameter greater than the outer diameter of the hollow standard tube 1 below one end, and a liquid preparation that can quickly cure and expand is added into the cavity through the hollow standard tube 1, and the liquid preparation forms a seat 34 after curing and expansion; such as quick-drying epoxy resin, RTV silicone rubber, polyurethane curing glue, acrylate glue, fast-curing polyester resin, fast-curing cement substrate, etc.

[0023] For details, please refer to Figure 5 , Figure 7 , Figure 10 and Figure 11 The bottom-expanding soil digging device includes a soil guide tube 9 rotatably mounted on the second lifting seat 7, a motor 10 providing power for the rotation of the soil guide tube 9, and an external expansion digging mechanism installed at the bottom of the soil guide tube 9. The external expansion digging mechanism includes multiple external expansion supports 11, a soil breaking cone 12, and multiple connecting rods 13 hingedly mounted on the outer wall of the soil guide tube 9. One end of the connecting rod 13 is hinged to the corresponding external expansion support 11, and the other end of the connecting rod 13 is hinged to the soil breaking cone 12. The outer diameter of the soil breaking cone 12 matches the inner diameter of the hollow standard pipe 1. A scraper 14 is installed on the external expansion support 11, and a spiral conveying blade 15 is provided in the soil guide tube 9. Further, the motor 10 is fixedly mounted on the second lifting seat 7, and the output shaft of the motor 10 is rotatably connected to the soil guide tube 9 through a transmission chain or a transmission belt. Multiple external expansion supports 11 are evenly distributed around the soil guide tube 9. A pipe rack with a feed port is installed on the top of the soil breaking cone 12, and the bottom of the connecting rod 13 is hinged to the pipe rack.

[0024] For details, please refer to Figure 10A cross brace 16 is fixedly installed in the middle and upper part of the outward expansion support 11, and a ball 17 is rotatably installed at the end of the cross brace 16. The cross brace 16 is in rotational contact with the inner wall of the hollow standard tube 1 through the ball 17.

[0025] For details, please refer to Figure 11 A positioning core shaft 18 extending into the soil guide tube 9 is fixedly installed on the second lifting seat 7, and a spiral conveying channel is formed between the outer wall of the positioning core shaft 18, the inner wall of the soil guide tube 9 and the spiral conveying blade 15, and the outer wall of the positioning core shaft 18 is in rotational contact with the spiral conveying blade 15; further, the central axes of the positioning core shaft 18, the soil guide tube 9 and the breaking cone 12 are collinear.

[0026] For details, please refer to Figure 11 A soil discharge bucket 19 is fixedly installed on the second lifting seat 7, and one end of the soil discharge bucket 19 extends to the outside of the soil guide pipe 9 and is tilted downward. The soil guide pipe 9 runs through the soil discharge bucket 19; further, the soil guide pipe 9 is rotatably sealed and connected to the soil discharge bucket 19 through fillers, etc.

[0027] The land resource measurement and positioning device provided in this embodiment has the following features: when the hollow mark tube 1 is inserted into the soil, the soil breaking cone 12 is located at the bottom of the hollow mark tube 1 and blocks the bottom port of the hollow mark tube 1, while the outer expansion support 11 is as shown in FIG. Figure 10 As shown in the figure, it is in a retracted state. Under the action of the cross brace 16, the outer expansion brace 11 can be prevented from expanding during the synchronous downward movement of the earth-breaking cone 12 following the hollow mark tube 1, and the scraper 14 can be prevented from contacting the inner wall of the hollow mark tube 1; when the hollow mark tube 1 is fully inserted into the soil, the second lifting driver 8 drives the second lifting seat 7 to move downward, and the ball 17 can effectively reduce the friction between the cross brace 16 and the inner wall of the hollow mark tube 1. After the cross brace 16 is completely moved out from the bottom of the hollow mark tube 1, the motor 10 drives the soil guide tube 9 to rotate, and the scraper 14 can scrape the surrounding soil. At the same time, the second lifting driver 8 drives the second lifting seat 7 to continue to move downward, and the resistance of the soil to the earth-breaking cone 12 is less than the resistance of the soil to the scraper 14. The earth-breaking cone 12 stops moving downward and is in a stationary state. During the downward movement of the soil guide tube 9, the connecting rod 13 gradually props up the outer expansion brace 11 until the outer expansion brace 11 is Figure 3 In the state shown, the soil at the bottom of the hollow marking tube 1 can be dug into a hemispherical cavity, and the soil scraped by the scraper 14 is concentrated at the bottom of the soil guide tube 9 under the action of gravity. Under the action of the spiral conveying blades 15 in the soil guide tube 9, the loose soil particles are transported to the top of the soil guide tube 9 and fall into the soil discharge bucket 19, and the soil discharge bucket 19 can transport the soil away from the hollow marking tube 1 to prevent the soil from falling back into the hollow marking tube 1, thereby realizing the rapid excavation of the bottom cavity of the hollow marking tube 1; and the positioning core shaft 18 can ensure that the soil guide tube 9 rotates in the vertical direction, avoids the soil guide tube 9 from tilting, improves the verticality of the soil guide tube 9, and at the same time can facilitate the soil to move from bottom to top in the spiral conveying channel formed between the outer wall of the positioning core shaft 18, the inner wall of the soil guide tube 9 and the spiral conveying blades 15, thereby improving the smoothness of soil transportation.

[0028] Example 2: The land resource measurement and fixing device provided in Example 1 is further optimized. Specifically, please refer to Figure 3-4 and Figure 9 , and it further includes a preparation filling mechanism. The preparation filling mechanism includes two storage tanks 20, a third lifting seat 21 slidably mounted up and down on the first lifting seat 4, two filling pumps 22 mounted on the third lifting seat 21, and an injection pipe 23. The input end of the filling pump 22 extends into the inner bottom of the corresponding storage tank 20, and the output end of the filling pump 22 is communicated with the top input end of the injection pipe 23. A spiral guide vane 24 is arranged in the injection pipe 23. A third lifting driver 25 for providing power for the up and down movement of the third lifting seat 21 is mounted on the first lifting seat 4. The frame 3 is slidably mounted on the cart 2, and a transverse movement pusher 26 for providing power for the sliding of the frame 3 is mounted on the cart 2; further, the injection pipe 23 is detachably mounted on the third lifting seat 21; the third lifting driver 25 is preferably a telescopic cylinder, and other equivalent components capable of driving the third lifting driver 25 to move up and down can also be used; a slide rail is arranged on the cart 2, the frame 3 is slidably mounted on the slide rail, the transverse movement pusher 26 is preferably a motor and a chain, a sprocket is rotatably mounted on the cart 2, one end of the chain is sleeved on the sprocket, the other end of the chain is sleeved on the output end of the motor, and the chain is fixedly connected to the frame 3; the transverse movement pusher 26 can also be other equivalent components such as a telescopic cylinder that can drive the frame 3 to move.

[0029] Specifically, please refer to Figure 1 and Figure 8 , a rotating table 27 is fixedly mounted on the cart 2, a turntable 35 is mounted on the rotating table 27, and a plurality of circumferentially evenly distributed elastic clamping members 28 are arranged on the turntable 35. The elastic clamping members 28 are used for elastically clamping the hollow marking tube 1; further, the elastic clamping members 28 are preferably elastic clamps, and other equivalent components having the clamping effect on the hollow marking tube 1 can also be used for the elastic clamping members 28.

[0030] Specifically, please refer to Figure 6 , and it further includes an identification cover 29. The identification cover 29 is screwed onto the top end port of the hollow marking tube 1, and an annular edge plate 30 is arranged at the top of the hollow marking tube 1; further, a cross mark and a plurality of ring marks with gradually increasing inner diameters are arranged on the identification cover 29, and coordinate point data or warning slogans can also be engraved at the identification cover 29.

[0031] Specifically, please refer to Figure 7, the clamping presser uses a thumb clamp 31, and the clamping end of the thumb clamp 31 is provided with a pressing part 32 and a plurality of clamping blocks 33; further, the plurality of clamping blocks 33 are circumferentially and evenly distributed around the annular edge plate 30, and the bottom of the pressing part 32 is in close contact with the top of the annular edge plate 30. The clamping blocks 33 can clamp the four sides of the annular edge plate 30, and the pressing part 32 can form a downward movement effect on the top of the annular edge plate 30, so as to improve the clamping stability between the thumb clamp 31 and the hollow marking tube 1, prevent the hollow marking tube 1 from moving downward relative to the thumb clamp 31, and ensure the smoothness of the hollow marking tube 1 being inserted into the soil smoothly.

[0032] In the land resource measurement and fixing device provided in this embodiment, the two storage tanks 20 are respectively filled with a liquid preparation that can be quickly solidified and expanded and a curing agent for promoting the solidification of the liquid preparation. After the bottom cavity of the hollow marking tube 1 is excavated and formed, the second lifting driver 8 drives the second lifting seat 7 to reset, so that the bottom-expanding soil excavator completely moves out from the top of the hollow marking tube 1, and the transverse movement pusher 26 drives the frame 3 to move until the injection pipe 23 is located directly above the hollow marking tube 1 inserted into the soil. The third lifting driver 25 drives the third lifting seat 21 to move downward until the injection pipe 23 extends to the bottom of the cavity. The filling pump 22 injects the liquid preparation and the curing agent into the cavity through the injection pipe 23. The third lifting driver 25 drives the third lifting seat 21 to move upward, so that the cavity and the bottom of the hollow marking tube 1 are filled with the liquid preparation and the curing agent. Under the action of the curing agent, the liquid preparation quickly solidifies and forms into the state shown by Figure 6 the middle seat pier 34. The formed seat pier 34 is integrally connected with the bottom of the hollow marking tube 1, which can prevent the hollow marking tube 1 from being easily pulled out of the soil and greatly improve the installation stability of the hollow marking tube 1 in the soil; the spiral guide vane 24 in the injection pipe 23 can improve the contact uniformity between the liquid preparation and the curing agent, thus playing a positive role in the subsequent rapid solidification and forming of the seat pier 34.

[0033] A plurality of hollow marking tubes 1 can be placed at the elastic clamping members 28 on the turntable 35 for waiting for materials. The transverse movement pusher 26 pushes the frame 3 to feed towards the turntable 35 until the clamping presser is located directly above the corresponding hollow marking tube 1. The third lifting driver 25 drives the third lifting seat 21 to move downward so that the clamping presser clamps the top of the hollow marking tube 1. Then the frame 3 resets, and the turntable 27 drives the turntable 35 to rotate, so that the hollow marking tube 1 is transferred to the material taking position of the clamping presser. In this way, the automatic continuous feeding of the hollow marking tube 1 is realized, the manual operation amount is reduced, and the fixing efficiency of the hollow marking tube 1 is further improved.

[0034] The annular edge plate 30 can prevent the hollow marking tube 1 from being further inserted into the soil, that is, limit the depth of insertion of the hollow marking tube 1 into the soil. After the pedestal 34 is completely formed, the top of the hollow marking tube 1 is sealed by the marking cap 29 to prevent external sundries from entering the soil. The cross mark and ring marking on the marking cap 29 can facilitate the surveyors to align the external surveying equipment with the coordinate point at the fixed point.

[0035] The using process of the land resource survey fixed-point device provided by the present invention is as follows: Push the trolley 2 to the required survey fixed-point location, adjust the trolley 2 to be in a horizontal placement state, and make the hollow marking tube 1 clamped by the clamping presser be directly above the point to be marked. The first lifting driver 5 drives the first lifting seat 4 to move downward, so that the hollow marking tube 1 is inserted into the soil at the point to be marked. Subsequently, the second lifting driver 8 drives the bottom-expanding soil excavator to move below the hollow marking tube 1, and the bottom-expanding soil excavator excavates a cavity with an inner diameter larger than the outer diameter of the hollow marking tube 1 at the bottom of the hollow marking tube 1. Then, the bottom-expanding soil excavator moves out from the upper part of the hollow marking tube 1, and the transverse moving pusher 26 pushes the frame 3 to move until the filling tube is located above the hollow marking tube 1. The relevant preparation is injected into the cavity and the middle and lower parts of the hollow marking tube 1 through the preparation injection mechanism. After the liquid preparation solidifies and expands, the pedestal 34 is formed; the pedestal 34 and the hollow marking tube 1 are integrated as a whole, and the marking cap 29 is installed on the top of the hollow marking tube 1 to complete the fixed-point operation of one marking point.

[0036] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated as a whole; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A land resource measurement and fixed-point device, characterized in that: The invention comprises a hollow standard pipe (1), a trolley (2), a frame (3) mounted on the trolley (2), a first lifting seat (4) mounted on the frame (3) and slidingly mounted on the frame (3), and a pressing and digging mechanism mounted on the first lifting seat (4); the frame (3) is mounted with a first lifting driver (5) for providing power for the first lifting seat (4) to move up and down; the pressing and digging mechanism comprises a vertical frame (6), a clamping and pressing device mounted on the bottom of the vertical frame (6), a second lifting seat (7) mounted on the first lifting seat (4) and slidingly mounted on the first lifting seat (4), and a bottom digging device mounted on the second lifting seat (7); the vertical frame (6) is mounted with a second lifting driver (8) for providing power for the second lifting seat (7) to move up and down; the clamping and pressing device is used for clamping and limiting the top end of the hollow standard pipe (1); the bottom digging device is used for pressing into the soil below the hollow standard pipe (1) to perform rotary digging.

2. The land resource measurement and fixed-point device according to claim 1, characterized in that: The bottom expansion excavator comprises a soil guide tube (9) rotatably mounted on a second lifting seat (7), a motor (10) providing power for the rotation of the soil guide tube (9), and an outward expansion excavation mechanism mounted on the bottom of the soil guide tube (9), the outward expansion excavation mechanism comprising a plurality of outward expansion supports (11) hingedly mounted on the outer wall of the soil guide tube (9), a soil breaking cone (12), and a plurality of connecting rods (13), one end of the connecting rod (13) being hingedly connected to the corresponding outward expansion support (11), the other end of the connecting rod (13) being hingedly connected to the soil breaking cone (12), the outer diameter of the soil breaking cone (12) being matched with the inner diameter of the hollow standard tube (1), a scraper (14) being mounted on the outward expansion support (11), and a spiral conveying blade (15) being arranged in the soil guide tube (9).

3. The land resource measurement and fixed-point device according to claim 2, characterized in that: A cross brace (16) is fixedly mounted on the middle and upper part of the outward expansion brace (11), and a ball bearing (17) is rotatably mounted on the end of the cross brace (16). The cross brace (16) is in rotatable contact with the inner wall of the hollow standard tube (1) via the ball bearing (17).

4. The land resource measurement and fixed-point device according to claim 2 or 3, characterized in that: A positioning core shaft (18) extending into the soil guide tube (9) is fixedly mounted on the second lifting seat (7); a spiral conveying channel is formed between the outer wall of the positioning core shaft (18), the inner wall of the soil guide tube (9) and the spiral conveying blade (15); and the outer wall of the positioning core shaft (18) is in rotational contact with the spiral conveying blade (15).

5. The land resource measurement and positioning device according to claim 2, characterized in that: A soil discharge bucket (19) is fixedly mounted on the second lifting seat (7), one end of which extends toward the outside of the soil guide pipe (9) and is arranged to be tilted downward, and the soil guide pipe (9) passes through the soil discharge bucket (19).

6. The land resource measurement and fixed-point device according to claim 1, characterized in that: The invention also comprises a preparation filling mechanism, which comprises two storage tanks (20), a third lifting seat (21) slidably mounted on the first lifting seat (4) up and down, two filling pumps (22) and an injection pipe (23) mounted on the third lifting seat (21), the input end of the filling pump (22) extends into the bottom of the corresponding storage tank (20), the output end of the filling pump (22) is connected to the top input end of the injection pipe (23), and a spiral guide vane (24) is arranged in the injection pipe (23). The first lifting seat (4) is equipped with a third lifting driver (25) for providing power for the third lifting seat (21) to move up and down. The frame (3) is slidably mounted on the trolley (2), and the trolley (2) is equipped with a transverse pusher (26) for providing power for the frame (3) to slide.

7. The land resource measurement and fixed-point device according to claim 6, characterized in that: A rotating platform (27) is fixedly mounted on the trolley (2), a rotating disc (35) is mounted on the rotating platform (27), and a plurality of circumferentially evenly distributed elastic clamping members (28) are provided on the rotating disc (35), and the elastic clamping members (28) are used for elastically clamping the hollow standard tube (1).

8. The land resource measurement and fixed-point device according to claim 1, characterized in that: It also includes a marking cover (29), which is screwed onto the top end of the hollow marking tube (1). An annular edge plate (30) is provided on the top of the hollow marking tube (1).

9. The land resource measurement and positioning device according to claim 8, characterized in that: The clamping and pressing device adopts a thumb clamp (31), and the clamping end of the thumb clamp (31) is provided with a clamping portion (32) and a plurality of clamping blocks (33).

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