Measurement device for land management of territorial resources with accurate measurement

Abstract

The invention relates to the technical field of land measurement equipment, and discloses a land resource land management measurement device with accurate measurement, which comprises a measurement rotating wheel for measuring land size by means of rolling of a circumferential surface, a U-shaped frame is arranged on the outer side of the measurement rotating wheel, and a wheel shaft of the measurement rotating wheel is rotatably connected with the U-shaped frame through a bearing seat; the cleaning unit is installed on the U-shaped frame and used for cleaning the outer surface of the measuring rotating wheel, a transmission unit is arranged on the outer side of one wheel shaft of the measuring rotating wheel, and an impurity removing unit used for blowing in the rolling process of the measuring rotating wheel is installed at one end of the U-shaped frame; dust and impurities attached to the surface of the measuring rotating wheel can be cleaned in the measuring process, it is guaranteed that no dust or dirt is accumulated on the surface of the measuring rotating wheel, and the measuring precision is guaranteed; and the designed impurity removal unit can perform injection in the rolling process of the measurement rotating wheel, so that the measurement rotating wheel is prevented from being blocked by small-particle impurities in the advancing direction of the measurement rotating wheel in the moving process.

Description

Technical Field

[0001] The present invention relates to the technical field of land surveying equipment, and in particular to a surveying device for land resources management with accurate measurement. Background Art

[0002] Land management is a comprehensive set of administrative, economic, legal and technical measures taken by the state to adjust land relations, organize and supervise land development and utilization, and protect and rationally utilize land resources; land surveying is the work of measuring and mapping the quantity, distribution and topography of various types of land using surveying and remote sensing technology; land surveying mainly refers to various contents other than topographic surveying, and all measurements are based on the national basic topographic map.

[0003] At present, it is well known that today's land resources are becoming increasingly scarce, so when measuring and managing soil resources, it is necessary to frequently collect data on the specific area of ​​the land. The commonly used tools for measuring land are tape measures. In the process of using tape measures for land measurement, there are major defects. Due to its limited length, the tape measure can only be used for small areas, and it is easily disturbed during the measurement process, resulting in inaccurate measurement accuracy. In order to measure more accurately, the existing Chinese patent document CN201922438751.2 discloses a measuring device for accurate land resources management. When the measuring wheel is rotating for measurement, it rotates one circle every time the hollow spoke is facing downward, so that the internally prevented marking material falls out through the marking funnel for marking. In the measurement of longer distances, only the mark needs to be recorded to obtain the actual distance;

[0004] The above scheme is to determine the actual distance by calculating the number of rolling circles of the measuring wheel and combining it with its own diameter. However, the circumferential surface of the measuring wheel is easily attached with impurities such as dust, dirt or stones when rolling, especially in humid or rainy weather. Dust can easily adhere to the circumferential surface of the measuring wheel together with water. At this time, the impurities can easily contact the ground during the movement of the roller, thereby changing the distance the roller travels in one circle, thereby causing measurement errors. Summary of the invention

[0005] The purpose of the present invention is to provide a measuring device for land resources management with accurate measurement, so as to solve the problem that the circumferential surface of the existing measuring wheel mentioned in the above background technology is easily attached with impurities such as dust, dirt or stones when rolling.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a measuring device for land resources management with precise measurement, comprising a measuring wheel for measuring land size by rolling on a circumferential surface, a U-shaped frame is provided on the outer side of the measuring wheel, and the axle of the measuring wheel is rotatably connected to the U-shaped frame through a bearing seat; further comprising: a cleaning unit installed on the U-shaped frame for cleaning the outer surface of the measuring wheel, a transmission unit is provided on the outer side of one of the axles of the measuring wheel, and a de-impurity unit for spraying during the rolling process of the measuring wheel is installed at one end of the U-shaped frame; and a lubrication unit installed on both sides of the U-shaped frame for lubricating the axle of the measuring wheel.

[0007] Preferably, the cleaning unit includes a cleaning brush that contacts the rolling surface of the measuring wheel, a connecting block is fixed to one end of the shell of the cleaning brush, a limiting rod is fixed to the connecting block by bolts, the outer side of the limiting rod is slidably sleeved with the limiting sleeve, a first U-shaped plate is fixed to the top of the limiting sleeve, the bottom end of the first U-shaped plate is fixedly connected to the U-shaped frame, a first fixed block is fixed to the outer side of the limiting rod, a second fixed block is fixed to the outer side of the limiting sleeve, a compression spring is fixed between the first fixed block and the second fixed block, and by providing a cleaning brush that contacts the surface of the measuring wheel, dust and impurities attached to the surface of the measuring wheel can be cleaned during measurement to ensure that no dust or stains accumulate on the surface of the measuring wheel to ensure measurement accuracy.

[0008] Preferably, the impurity removal unit includes a second U-shaped plate fixedly connected to the end of the U-shaped frame, a sealing cylinder is fixed on the inner side of the second U-shaped plate, a rubber plug is slidably and sealably connected inside the sealing cylinder, an air inlet pipe is fixedly inserted at the top of the sealing cylinder through a one-way valve, an air outlet pipe is fixedly inserted at the bottom of the sealing cylinder, the air outlet pipe is connected to the air supply pipe through a one-way valve, the bottom end of the air supply pipe is fixedly connected to an injection pipe, a plurality of injection holes are arranged in a linear array on the outside of the injection pipe, a reciprocating rod is fixed to the end of the rubber plug away from the air inlet pipe, a round block is fixed to the end of the reciprocating rod away from the rubber plug, a reset spring is fixed to one end of the round block, the reset spring surrounds the outside of the reciprocating rod, and the end of the reciprocating rod away from the round block is fixedly connected to the second U-shaped plate, the output end of the transmission unit is fixedly connected to the round block, and the impurity removal unit can be used to spray during the rolling process of the measuring wheel to prevent the measuring wheel from being blocked by small particles of impurities in its forward direction during the movement, and at the same time, it can also have a certain cleaning effect.

[0009] Preferably, the transmission unit includes a driving gear fixedly sleeved with the axle of the measuring wheel, a transmission gear meshed on one side of the driving gear, the axle of the transmission gear is rotatably connected to the U-shaped frame through a bearing, an active bevel gear is also fixed to one end of the axle of the transmission gear, a passive bevel gear is meshed on one side of the active bevel gear, a transmission rod is fixed in the middle hole of the passive bevel gear, the transmission rod is connected to the U-shaped frame through two bearing seats, a rocker is fixed on one end of the transmission rod away from the passive bevel gear, a limit pin is fixed on the end of the rocker, a T-rod is slidably sleeved on the outer side of the limit pin, one end of the T-rod is fixedly connected to the round block, and power can be provided to the impurity removal unit through the transmission unit.

[0010] Preferably, the lubrication unit includes a support plate fixedly connected to the outer wall of the U-shaped frame, an oil box is fixedly installed on the support plate, a rectangular shell is fixed on one side of the oil box, a reciprocating screw is rotatably connected to the interior of the rectangular shell through a bearing, a piston plate is threadedly installed on the outer side of the reciprocating screw, the outer wall of the piston plate is connected to the inner wall of the rectangular shell through a sealing ring, an oil inlet pipe is fixedly inserted into the top of the rectangular shell through a one-way valve, the end of the oil inlet pipe away from the rectangular shell is fixedly inserted into the interior of the oil box, and an oil outlet pipe is fixedly inserted into the bottom of the rectangular shell through a one-way valve, the end of the oil outlet pipe away from the rectangular shell is connected to the bearing seat of the measuring wheel axle, and a clutch is installed on the outer wall of the oil box, and the axle of the measuring wheel can be lubricated by the lubrication unit to ensure that the measuring wheel rotates more stably and smoothly, thereby further improving the measurement accuracy.

[0011] Preferably, the clutch component includes an I-shaped plate fixedly connected to the outer side wall of the oil box, an electric push rod is fixedly installed on one end of the I-shaped plate, a movable plate is fixed on the telescopic end of the electric push rod, a movable plate is rotatably connected to a movable shaft through a bearing, a star-shaped plug and a transmission pulley are respectively fixed at both ends of the movable shaft, a docking block is fixed to one end of the reciprocating screw, a star-shaped groove matched with the star-shaped plug is formed at one end of the docking block, a linkage component is provided between the measuring wheel and the transmission pulley, and the designed clutch component can realize automatic switching between the rotational force of the measuring wheel and the reciprocating force of the reciprocating screw.

[0012] Preferably, the linkage member includes a spline rod fixedly connected to the end of the wheel shaft of the measuring wheel, the outer side of the spline rod is slidably sleeved with a spline sleeve, the spline sleeve is rotatably connected to the movable plate via a bearing, the outer side of the spline sleeve is also fixedly sleeved with a driving pulley, and a transmission belt is transmission-connected between the driving pulley and the transmission pulley. The designed linkage member can transmit the power of the measuring wheel to the lubrication unit to realize linkage.

[0013] Preferably, an air filter is provided at the top of the air intake pipe, and the bottom of the air filter is connected to the air intake pipe via internal and external threads. The designed air filter facilitates filtering the air entering the air intake pipe.

[0014] Preferably, an oil replenishing pipe is fixedly inserted at the top of the oil box, and a sealing cover is threadedly connected to the top of the oil replenishing pipe. This design facilitates oil replenishing of the oil box.

[0015] Preferably, a connecting bracket is fixed to the outside of the U-shaped frame, a box is fixed to the top of the connecting bracket, a push handle is fixedly connected to the upper end of one side of the box, and the designed box is convenient for operators to store items and the push plate is convenient for moving and pushing the overall structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a cleaning unit that contacts the surface of the measuring wheel, so that the dust and impurities attached to the surface of the measuring wheel can be cleaned during measurement, ensuring that no dust or stains are accumulated on the surface of the measuring wheel to ensure measurement accuracy; and the designed impurity removal unit can be sprayed during the rolling process of the measuring wheel to avoid the measuring wheel being blocked by small particles of impurities in its forward direction during movement, and can also achieve a certain cleaning effect.

[0018] 2. In the present invention, a special lubrication unit is provided to reduce the friction between the axle and the bearing, thereby extending the service life of the equipment, and by reducing mechanical wear, the consistency and reliability of the measurement data are ensured, thereby significantly improving the accuracy of the measurement results, and further ensuring the efficient and precise operation of the measuring wheel under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0021] Figure 3 It is a schematic diagram of a local structure of the present invention in a top view;

[0022] Figure 4 It is a structural schematic diagram of the cleaning unit of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the transmission unit of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the impurity removal unit of the present invention;

[0025] Figure 7It is a structural schematic diagram of the lubrication unit of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the clutch member of the present invention;

[0027] Fig. 9 It is a schematic diagram of the linkage structure of the present invention.

[0028] In the figure: 1. measuring wheel; 2. U-shaped frame; 3. cleaning unit; 4. transmission unit; 5. impurity removal unit; 6. lubrication unit; 7. cleaning brush; 8. connecting block; 9. limiting rod; 10. limiting sleeve; 11. first U-shaped plate; 12. first fixed block; 13. second fixed block; 14. pressing spring; 15. second U-shaped plate; 16. sealing cylinder; 17. rubber plug; 18. air inlet pipe; 19. air outlet pipe; 20. air delivery pipe; 21. jet pipe; 22. jet hole; 23. reciprocating rod; 24. round block; 25. reset spring; 26. driving gear; 27. transmission gear; 28. active bevel gear; 29. ​​passive bevel gear; 30 , transmission rod; 31, rocker arm; 32, limit pin; 33, T-bar; 34, support plate; 35, oil box; 36, rectangular shell; 37, reciprocating screw; 38, piston plate; 39, oil inlet pipe; 40, oil outlet pipe; 41, clutch; 42, "X"-shaped plate; 43, electric push rod; 44, moving plate; 45, moving shaft; 46, star-shaped plug; 47, drive pulley; 48, docking block; 49, star-shaped groove; 50, linkage; 51, spline rod; 52, spline sleeve; 53, drive pulley; 54, drive belt; 55, air filter; 56, oil supply pipe; 57, sealing cover; 58, connecting bracket; 59, box; 60, push handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 3 , a measuring device for land resources management with accurate measurement shown in the figure includes a measuring wheel 1 for measuring land size by rolling on a circumferential surface. The measuring principle thereof has been disclosed in CN201922438751.2. When in use, the measuring wheel 1 is rotated. Each time the hollow spoke is downward, it rotates one circle, so that the marking material prevented inside falls out through the marking funnel for marking. In the measurement of a long distance, only the mark needs to be recorded to obtain the actual distance;

[0031] A U-shaped frame 2 is provided on the outer side of the measuring wheel 1, and the axle of the measuring wheel 1 is rotatably connected to the U-shaped frame 2 through a bearing seat; it also includes: a cleaning unit 3 installed on the U-shaped frame 2 for cleaning the outer surface of the measuring wheel 1, a transmission unit 4 is provided on the outer side of one of the axles of the measuring wheel 1, and a de-impurity unit 5 for spraying during the rolling process of the measuring wheel 1 is installed at one end of the U-shaped frame 2; and lubrication units 6 installed on both sides of the U-shaped frame 2 for lubricating the axle of the measuring wheel 1.

[0032] In this solution, by providing a cleaning unit 3 in contact with the surface of the measuring wheel 1, the dust and impurities attached to the surface of the measuring wheel 1 can be cleaned during measurement to ensure that no dust or stains accumulate on the surface of the measuring wheel 1 to ensure measurement accuracy; and the designed impurity removal unit 5 can be sprayed during the rolling process of the measuring wheel 1 to prevent the measuring wheel 1 from being blocked by small particles of impurities in its forward direction during movement, and can also achieve a certain cleaning effect.

[0033] For further information, see Figure 4 The cleaning unit 3 includes a cleaning brush 7 that contacts the rolling surface of the measuring wheel 1. A connecting block 8 is fixed to one end of the outer shell of the cleaning brush 7. A limiting rod 9 is fixed to the connecting block 8 by bolts. The outer side of the limiting rod 9 is slidably sleeved with a limiting sleeve 10. A first U-shaped plate 11 is fixed to the top of the limiting sleeve 10. The bottom end of the first U-shaped plate 11 is fixedly connected to the U-shaped frame 2. A first fixing block 12 is fixed to the outer side of the limiting rod 9. A second fixing block 13 is fixed to the outer side of the limiting sleeve 10. A compression spring 14 is fixed between the first fixing block 12 and the second fixing block 13.

[0034] Specific working principle: Since the cleaning brush 7 can always be in close contact with the outer circumference of the measuring wheel 1 by the cooperation of the compression spring 14 and the limit rod 9, the measuring wheel 1 will produce relative friction movement with the cleaning brush 7 when it rotates. The cleaning brush 7 will clean the dust and impurities attached to the outer surface of the measuring wheel 1, so that there is no dust or stains accumulated on the surface of the measuring wheel 1 during measurement, so as to ensure the measurement accuracy.

[0035] For further information, see Figure 5The impurity removal unit 5 includes a second U-shaped plate 15 fixedly connected to the end of the U-shaped frame 2, a sealing cylinder 16 is fixed to the inner side of the second U-shaped plate 15, and a rubber plug 17 is connected to the inner sliding seal of the sealing cylinder 16. An air inlet pipe 18 is fixedly inserted at the top of the sealing cylinder 16 through a one-way valve, and an air outlet pipe 19 is fixedly inserted at the bottom of the sealing cylinder 16. The air outlet pipe 19 is connected to an air supply pipe 20 through a one-way valve, and an air injection pipe 21 is fixedly connected to the bottom end of the air supply pipe 20. A plurality of air injection holes 22 are arranged in a linear array on the outer side of the air injection pipe 21, a reciprocating rod 23 is fixed to the end of the rubber plug 17 away from the air inlet pipe 18, a round block 24 is fixed to the end of the reciprocating rod 23 away from the rubber plug 17, and a return spring 25 is fixed to one end of the round block 24. The return spring 25 surrounds the outer side of the reciprocating rod 23, and its end away from the round block 24 is fixedly connected to the second U-shaped plate 15, and the output end of the transmission unit 4 is fixedly connected to the round block 24.

[0036] The principle of further cleaning by the impurity removal unit 5: when in use, the rotation of the measuring wheel 1 drives the transmission unit 4 to transmit, the transmission unit 4 drives the round block 24 to reciprocate left and right, and then drives the reciprocating rod 23 to move left and right, the reciprocating rod 23 drives the rubber plug 17 to reciprocate in the sealing tube 16, the rubber plug 17 sucks in the outside air through the air inlet pipe 18, and then discharges it into the air supply pipe 20 through the air outlet pipe 19, and finally enters the injection pipe 21, and is sprayed to the front position of the measuring wheel 1 through the injection hole 22, so that it can be sprayed during the rolling process of the measuring wheel 1, so as to avoid the measuring wheel 1 being blocked by small particles of impurities in its forward direction during the movement.

[0037] For further information, see Figure 6 The transmission unit 4 includes a driving gear 26 fixedly sleeved with the axle of the measuring wheel 1, a transmission gear 27 is meshed on one side of the driving gear 26, and the axle of the transmission gear 27 is rotatably connected to the U-shaped frame 2 through a bearing, and an active bevel gear 28 is also fixed to one end of the axle of the transmission gear 27, and a passive bevel gear 29 is meshed on one side of the active bevel gear 28. A transmission rod 30 is fixed in the middle hole of the passive bevel gear 29, and the transmission rod 30 is connected to the U-shaped frame 2 through two bearing seats. A swing rod 31 is fixed at one end of the transmission rod 30 away from the passive bevel gear 29, and a limit pin 32 is fixed at the end of the swing rod 31. A T-shaped rod 33 is slidably sleeved on the outer side of the limit pin 32, and one end of the T-shaped rod 33 is fixedly connected to the round block 24.

[0038] The working principle of the transmission unit 4 is as follows: when the measuring wheel 1 rotates, the driving gear 26 is driven to rotate, the driving gear 26 drives the transmission gear 27 to rotate, the transmission gear 27 drives the active bevel gear 28 to rotate, the active bevel gear 28 drives the passive bevel gear 29 to rotate, the passive bevel gear 29 drives the transmission rod 30 to rotate, the transmission rod 30 drives the swing rod 31 at one end to rotate, the swing rod 31 drives the limit pin 32 to rotate, the limit pin 32 and the T-bar 33 are slidably connected, so the limit pin 32 drives the T-bar 33 to reciprocate left and right, thereby transmitting the reciprocating force to the input end of the impurity removal unit 5.

[0039] For further information, see Figure 1 A connecting bracket 58 is fixed to the outside of the U-shaped frame 2, a box 59 is fixed to the top of the connecting bracket 58, and a push handle 60 is fixedly connected to the upper end of one side of the box 59. This design makes the box 59 more convenient to use, and it is convenient for operators to store and take out items. At the same time, the existence of the push handle 60 makes it very convenient to move and push the entire structure, which greatly improves work efficiency and operational flexibility.

[0040] Example 2: Please refer to Figure 7-Figure 9 This embodiment further explains the first embodiment, and the difference lies in that the rotation effect of the measuring wheel 1 is optimized.

[0041] Specifically, the lubrication unit 6 includes a support plate 34 fixedly connected to the outer wall of the U-shaped frame 2, an oil box 35 is fixedly installed on the support plate 34, a rectangular shell 36 is fixed on one side of the oil box 35, a reciprocating screw 37 is rotatably connected to the interior of the rectangular shell 36 through a bearing, a piston plate 38 is threadedly installed on the outer side of the reciprocating screw 37, the outer wall of the piston plate 38 is connected to the inner wall of the rectangular shell 36 through a sealing ring, an oil inlet pipe 39 is fixedly inserted at the top of the rectangular shell 36 through a one-way valve, and one end of the oil inlet pipe 39 away from the rectangular shell 36 is fixedly inserted into the interior of the oil box 35, and an oil outlet pipe 40 is fixedly inserted at the bottom of the rectangular shell 36 through a one-way valve, and one end of the oil outlet pipe 40 away from the rectangular shell 36 is connected to the bearing seat of the wheel axle of the measuring wheel 1, and a clutch 41 is installed on the outer wall of the oil box 35.

[0042] When in use, the rotation of the reciprocating screw 37 drives the piston plate 38 to reciprocate left and right in the rectangular shell 36. The piston plate 38 will absorb part of the lubricating substance in the oil box 35 into the rectangular shell 36 through the oil inlet pipe 39, and then enter the bearing seat of the axle of the measuring wheel 1 through the oil outlet pipe 40, so as to lubricate the limiting part of the axle, reduce the friction between the axle and the bearing, and extend the service life of the equipment, thereby significantly improving the accuracy of the measurement results, and further ensuring the efficient and precise operation of the measuring wheel 1 under various working conditions.

[0043] At the same time, the clutch member 41 includes a "X"-shaped plate 42 fixedly connected to the outer wall of the oil box 35, an electric push rod 43 is fixedly installed on one end of the "X"-shaped plate 42, a movable plate 44 is fixed to the telescopic end of the electric push rod 43, a movable shaft 45 is rotatably connected to the movable plate 44 through a bearing, a star-shaped plug 46 and a transmission pulley 47 are respectively fixed at both ends of the movable shaft 45, a docking block 48 is fixed at one end of the reciprocating screw 37, a star-shaped groove 49 matched with the star-shaped plug 46 is opened at one end of the docking block 48, and a linkage member 50 is provided between the measuring wheel 1 and the transmission pulley 47.

[0044] It should be noted that before performing the lubrication operation, the electric push rod 43 is started, and the telescopic end of the electric push rod 43 drives the movable plate 44 to move, and then drives the movable shaft 45 to move, and the star-shaped plug 46 at one end of the movable shaft 45 is slidably matched with the star-shaped groove 49 and locked, so that the docking block 48 and the star-shaped plug 46 are fixed. At this time, when the measuring wheel 1 rotates, the transmission pulley 47 will be driven to rotate through the linkage 50, and the transmission pulley 47 will drive the docking block 48 to rotate. Finally, the docking block 48 drives the reciprocating screw 37 to rotate, so that the lubrication unit 6 can work, and thus it can measure and lubricate at the same time, thereby improving the use efficiency of the measuring wheel 1.

[0045] In addition, the linkage member 50 includes a spline rod 51 fixedly connected to the end of the wheel shaft of the measuring wheel 1, a spline sleeve 52 is slidably sleeved on the outer side of the spline rod 51, the spline sleeve 52 is rotatably connected to the movable plate 44 through a bearing, and a driving pulley 53 is also fixedly sleeved on the outer side of the spline sleeve 52, and a transmission belt 54 is transmission-connected between the driving pulley 53 and the transmission pulley 47.

[0046] It should be noted that: the axle of the measuring wheel 1 drives the spline rod 51 to rotate, the spline rod 51 drives the spline sleeve 52 to rotate, the spline sleeve 52 drives the driving pulley 53 to rotate, the driving pulley 53 drives the driving pulley 47 to rotate through the transmission belt 54, and then drives the moving shaft 45 to rotate, so that the power of the measuring wheel 1 can be transmitted to the lubrication unit 6 to realize linkage.

[0047] At the same time, it is worth noting that a special oil replenishing pipe 56 is designed at the top of the oil box 35, and the oil replenishing pipe 56 is fixed to the top of the oil box 35 by means of a threaded connection, so that the oil replenishing operation becomes very convenient; in addition, a sealing cover 57 is also threadedly connected to the top of the oil replenishing pipe 56, so as to ensure that the oil will not leak during the oil replenishing process, thereby maintaining the cleanliness and sealing of the inside of the oil box 35; this design not only facilitates the oil replenishing process of the oil box 35, but also can effectively prevent the leakage of the oil, thereby extending the service life of the oil box 35.

[0048] Example 3: Please refer to Figure 5This embodiment further explains other embodiments, and the difference lies in that the structure of the intake pipe 18 is optimized.

[0049] Specifically, the impurity removal unit 5 includes a second U-shaped plate 15 fixedly connected to the end of the U-shaped frame 2, a sealing cylinder 16 is fixed to the inner side of the second U-shaped plate 15, a rubber plug 17 is slidably sealed and connected to the inside of the sealing cylinder 16, an air inlet pipe 18 is fixedly plugged into the top of the sealing cylinder 16 through a one-way valve, an air outlet pipe 19 is fixedly plugged into the bottom of the sealing cylinder 16, the air outlet pipe 19 is connected to the air supply pipe 20 through a one-way valve, an air injection pipe 21 is fixedly connected to the bottom end of the air supply pipe 20, a plurality of air injection holes 22 are arranged in a linear array on the outer side of the air injection pipe 21, a reciprocating rod 23 is fixed to the end of the rubber plug 17 away from the air inlet pipe 18, and the end of the reciprocating rod 23 away from the rubber plug 17 A round block 24 is fixed, and a return spring 25 is fixed at one end of the round block 24. The return spring 25 surrounds the outer side of the reciprocating rod 23, and the end of the return spring 25 away from the round block 24 is fixedly connected to the second U-shaped plate 15, and the output end of the transmission unit 4 is fixedly connected to the round block 24; an air filter 55 is provided at the top of the intake pipe 18, and the bottom of the air filter 55 is connected to the intake pipe 18 through internal and external threads. Through this internal and external thread connection mode, the air filter 55 can be firmly fixed to the top of the intake pipe 18. In addition, this design not only ensures the stability and reliability of the air filter 55, but also facilitates disassembly and replacement when necessary;

[0050] The main function of the air filter 55 is to effectively filter the air entering the air intake pipe 18 to remove impurities and particulate matter therein, thereby ensuring that the air entering the sealing cylinder 16 is clean.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring device for accurate land resources management, comprising: A measuring wheel (1) for measuring land dimensions by rolling on a circumferential surface, wherein a U-shaped frame (2) is provided on the outer side of the measuring wheel (1), and the wheel axle of the measuring wheel (1) is rotatably connected to the U-shaped frame (2) via a bearing seat; It is characterized by further comprising: a cleaning unit (3) mounted on the U-shaped frame (2) for cleaning the outer surface of the measuring wheel (1); a transmission unit (4) is provided on the outer side of one of the axles of the measuring wheel (1); and a decontamination unit (5) for spraying during the rolling process of the measuring wheel (1) is mounted at one end of the U-shaped frame (2); A lubrication unit (6) installed on both sides of the U-shaped frame (2) for lubricating the axle of the measuring wheel (1).

2. The measuring device for land resources management with accurate measurement according to claim 1 is characterized by: The cleaning unit (3) comprises a cleaning brush (7) which contacts the rolling surface of the measuring wheel (1); a connecting block (8) is fixed to one end of the outer shell of the cleaning brush (7); a limiting rod (9) is fixed to the connecting block (8) by means of bolts; the outer side of the limiting rod (9) is slidably sleeved with a limiting sleeve (10); a first U-shaped plate (11) is fixed to the top of the limiting sleeve (10); the bottom end of the first U-shaped plate (11) is fixedly connected to the U-shaped frame (2); a first fixing block (12) is fixed to the outer side of the limiting rod (9); a second fixing block (13) is fixed to the outer side of the limiting sleeve (10); and a compression spring (14) is fixed between the first fixing block (12) and the second fixing block (13).

3. The measuring device for land resources management with accurate measurement according to claim 1 is characterized by: The impurity removal unit (5) comprises a second U-shaped plate (15) fixedly connected to the end of the U-shaped frame (2); a sealing cylinder (16) is fixedly provided on the inner side of the second U-shaped plate (15); a rubber plug (17) is slidably and sealably connected to the inside of the sealing cylinder (16); an air inlet pipe (18) is fixedly connected to the top of the sealing cylinder (16) via a one-way valve; an air outlet pipe (19) is fixedly connected to the bottom of the sealing cylinder (16); the air outlet pipe (19) is connected to an air supply pipe (20) via a one-way valve; the bottom end of the air supply pipe (20) is fixedly connected to an air jet pipe (21); and the air jet pipe (21) is fixedly connected to the bottom end of the air supply pipe (20). A plurality of air injection holes (22) are arranged in a linear array on the outer side of the rubber plug (17), a reciprocating rod (23) is fixed to one end of the rubber plug (17) away from the air inlet pipe (18), a round block (24) is fixed to one end of the reciprocating rod (23) away from the rubber plug (17), a return spring (25) is fixed to one end of the round block (24), the return spring (25) surrounds the outer side of the reciprocating rod (23), and the end of the return spring (25) away from the round block (24) is fixedly connected to the second U-shaped plate (15), and the output end of the transmission unit (4) is fixedly connected to the round block (24).

4. The measuring device for land resources management with accurate measurement according to claim 3 is characterized by: The transmission unit (4) comprises a driving gear (26) fixedly sleeved with the axle of the measuring wheel (1); a transmission gear (27) is meshed on one side of the driving gear (26); the axle of the transmission gear (27) is rotatably connected to the U-shaped frame (2) via a bearing; an active bevel gear (28) is fixed on one end of the axle of the transmission gear (27); a passive bevel gear (29) is meshed on one side of the active bevel gear (28); a transmission rod (30) is fixed in the middle hole of the passive bevel gear (29); the transmission rod (30) is connected to the U-shaped frame (2) via two bearing seats; a swing rod (31) is fixed on one end of the transmission rod (30) away from the passive bevel gear (29); a limit pin (32) is fixed on the end of the swing rod (31); a T-shaped rod (33) is slidably sleeved on the outer side of the limit pin (32); one end of the T-shaped rod (33) is fixedly connected to the round block (24).

5. The measuring device for land resources management with accurate measurement according to claim 1, characterized in that: The lubrication unit (6) comprises a support plate (34) fixedly connected to the outer wall of the U-shaped frame (2); an oil box (35) is fixedly mounted on the support plate (34); a rectangular shell (36) is fixedly mounted on one side of the oil box (35); a reciprocating screw (37) is rotatably connected to the interior of the rectangular shell (36) via a bearing; a piston plate (38) is threadedly mounted on the outer side of the reciprocating screw (37); the outer wall of the piston plate (38) is connected to the inner wall of the rectangular shell (36) via a sealing ring The top of the rectangular shell (36) is fixedly connected with an oil inlet pipe (39) through a one-way valve, and one end of the oil inlet pipe (39) away from the rectangular shell (36) is fixedly connected with the inside of the oil box (35). The bottom of the rectangular shell (36) is fixedly connected with an oil outlet pipe (40) through a one-way valve, and one end of the oil outlet pipe (40) away from the rectangular shell (36) is connected to the bearing seat of the wheel shaft of the measuring wheel (1). A clutch (41) is installed on the outer wall of the oil box (35).

6. The measuring device for land resources management with accurate measurement according to claim 5 is characterized by: The clutch member (41) comprises a cross-shaped plate (42) fixedly connected to the outer side wall of the oil box (35); an electric push rod (43) is fixedly installed on one end of the cross-shaped plate (42); a movable plate (44) is fixed on the telescopic end of the electric push rod (43); a movable shaft (45) is rotatably connected to the movable plate (44) through a bearing; star-shaped plugs (46) and a transmission pulley (47) are respectively fixed at both ends of the movable shaft (45); a docking block (48) is fixed at one end of the reciprocating screw (37); a star-shaped groove (49) matched with the star-shaped plugs (46) is formed at one end of the docking block (48); and a linkage member (50) is provided between the measuring wheel (1) and the transmission pulley (47).

7. The measuring device for land resources management with accurate measurement according to claim 6 is characterized by: The linkage member (50) comprises a spline rod (51) fixedly connected to the end of the wheel shaft of the measuring wheel (1); a spline sleeve (52) is slidably sleeved on the outer side of the spline rod (51); the spline sleeve (52) is rotationally connected to the movable plate (44) via a bearing; a driving pulley (53) is also fixedly sleeved on the outer side of the spline sleeve (52); a driving belt (54) is transmission-connected between the driving pulley (53) and the driving pulley (47).

8. The measuring device for land resources management with accurate measurement according to claim 3 is characterized by: An air filter (55) is provided at the top end of the air intake pipe (18), and the bottom end of the air filter (55) is connected to the air intake pipe (18) via internal and external threads.

9. The measuring device for land resources management with accurate measurement according to claim 5, characterized in that: An oil replenishing pipe (56) is fixedly plugged into the top of the oil box (35), and a sealing cover (57) is threadedly connected to the top of the oil replenishing pipe (56).

10. The measuring device for land resources management with accurate measurement according to claim 1, characterized in that: A connecting bracket (58) is fixed on the outside of the U-shaped frame (2), a box body (59) is fixed on the top of the connecting bracket (58), and a push handle (60) is fixedly connected to the upper end of one side of the box body (59).

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