Land area measuring device for land classification

Abstract

The invention discloses a land area measuring device for land classification, belongs to the technical field of land measurement, and aims to solve the problems of complex operation and low working efficiency of an existing tape measurement method. Through the synergistic effect of the mounting and dismounting mechanism and the transverse pushing assembly, automatic deployment and recovery of the measuring assembly are realized, the double-head motor drives the screw and the sleeve to complete vertical pressing-in and pulling-out of the measuring assembly, and in combination with transverse movement of the speed-increasing transmission structure and the pushing mechanism, manual intervention is remarkably reduced, the measuring efficiency is greatly improved, and the measuring precision is improved. The device is especially suitable for rapid measurement of multi-node complex terrains, multiple sets of containing grooves are formed in the containing box, multiple sets of measurement assemblies are stored in an integrated mode, overall movement of the device is achieved through the movable base, and compared with a traditional tape measure method which needs to carry multiple sets of tools, the device is integrally designed, the carrying process is simplified, and the complexity of field operation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of land measurement, and in particular to a land area measuring device for land classification. Background Art

[0002] In many fields such as land resource management, planning and design, and engineering construction, accurate land measurement is of vital importance. It is the basis for all subsequent work to be carried out scientifically. At present, land measurement methods are rich and diverse, covering tape measurement, theodolite measurement, total station measurement, GPS / BD measurement, and remote sensing measurement.

[0003] As a traditional measurement method, the tape measure measurement method is still widely used in small-sized and relatively regular-shaped land measurement scenarios due to its significant advantages of simple operation and low measurement cost. For example, in the measurement of rural homestead area and small farmland boundary determination, the tape measure measurement method can quickly obtain basic measurement data at a low cost.

[0004] However, the tape measure method has obvious limitations in actual operation. When measuring, the tape measure needs to be firmly fixed at each node of the land boundary to ensure that the tape measure position does not shift during the measurement process to ensure the accuracy of the measurement data; at the same time, in order to accurately draw the land shape map and calculate the area later, it is also necessary to measure the angle between two adjacent nodes. Therefore, when there are too many nodes, it is necessary to use multiple sets of tape measures and fix them; this series of operations is not only cumbersome and complicated to carry too many equipment, but also in complex environments such as the field, the difficulty of node fixation is further increased, making the entire measurement process time-consuming and inefficient; with the continuous improvement of modern society's requirements for land measurement accuracy and efficiency, these shortcomings of the tape measure method have become increasingly prominent and urgently need to be solved through technical improvements or in combination with other measurement methods. Summary of the invention

[0005] The purpose of the present invention is to provide a land area measuring device for land classification, which solves the problem of complex operation and low working efficiency of the existing tape measure measurement method in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a land area measuring device for land classification, comprising a housing and a containing box installed inside the housing, and also comprising a measuring assembly arranged inside the containing box, wherein a containing slot for containing multiple groups of measuring assemblies is arranged transversely inside the containing box, an inlet for the measuring assemblies to enter and exit is arranged on one side inside the containing box, and the upper part of the inlet is connected to the lower part of one side of the containing slot through a connecting slot, an installation and disassembly mechanism is arranged above the containing box inside the housing, and a transverse pushing assembly is arranged outside the containing box inside the housing, the installation and disassembly mechanism is used to install the measuring assembly on the ground and pull it out from the ground, and the transverse pushing assembly is used for the installation and disassembly mechanism to pull the measuring assembly out from the opposite side and then transport it back to the containing slot;

[0007] The installation and disassembly mechanism comprises a double-headed motor fixedly arranged inside the shell, a screw is fixedly connected to the output end below the double-headed motor, a sleeve is threadedly connected below the screw, a movable frame is fixedly installed at the bottom of the sleeve, the movable frame is slidably connected to the inside of the shell, and a one-way rotating block is movably installed at the bottom of the movable frame;

[0008] The lateral pushing assembly includes an end gear fixedly connected to the output end of the top of the double-headed motor, and also includes a transmission shaft rotatably connected to the front and rear of the outside of the accommodating box, and also includes a speed-increasing transmission structure arranged inside the outer shell, the speed-increasing transmission structure is located between the top of the double-headed motor and the transmission shaft, the middle part of the transmission shaft is provided with an external thread, the outer wall of the accommodating box is fixedly connected with a first fixing ring and a second fixing ring, the first fixing ring and the second fixing ring are located on the outside of the transmission shaft, the inner sides of the first fixing ring and the second fixing ring are respectively fixedly connected with a second spring and a third spring, the front and rear external parts of the accommodating box are slidably connected with a pushing mechanism, and the pushing mechanism corresponds to the transmission shaft and the external thread on the outside of the transmission shaft.

[0009] Furthermore, a movable base is installed under the shell, and the movable base is used to drive the entire device to move. A penetrating installation groove is provided inside the shell, and the receiving box is embedded in the installation groove. A penetrating entry and exit groove is provided inside the shell, and the entry and exit groove is used for the entry and exit of the measuring component. A sliding plate is slidably connected to the inside of the receiving groove, and a first spring is provided between the sliding plate and the inner wall of the receiving box. The first spring is used to keep the measuring component inside the receiving groove in a tightly fitting state.

[0010] Furthermore, the movable frame is arched, and when the movable frame presses down the measuring assembly, the inner wall of its top contacts the measuring assembly, the one-way rotating block is rotatably connected to the inner lower side of the movable frame, and the rotational connection between the movable frame and the one-way rotating block is located at the upper outer corner of the one-way rotating block, so that the one-way rotating block can be rotated upward but not downward, and when the movable frame lifts and pulls up the measuring assembly, the upper surface of the one-way rotating block contacts the measuring assembly.

[0011] Furthermore, a thread groove corresponding to the external thread is provided on the pushing frame, the spacing between the first fixing ring and the external thread is greater than the thickness of the pushing frame, and the spacing between the second fixing ring and the external thread is greater than the thickness of the pushing frame. When the transmission shaft rotates, the pushing frame moves to the left under the action of the external thread. As the transmission shaft rotates, the pushing frame does not move until it moves to the outer surface of the transmission shaft between the first fixing ring and the external thread. When waiting for the transmission shaft to rotate in the opposite direction, the pushing frame is quickly threadedly connected with the external thread and moves to one side of the second fixing ring.

[0012] Furthermore, the surface of the containing box is provided with oblique grooves and straight grooves, and the oblique grooves and the straight grooves are connected and provided with four groups in total.

[0013] Furthermore, the pushing mechanism includes a pushing frame, and a movable rod is slidably connected to the inner sides of the upper and lower ends of the pushing frame, and a guide rod is fixedly connected to the movable rod. The guide rod is movably arranged in an inclined groove and a straight groove, and the inner edge of the movable rod is rotatably connected to a one-way rotating plate through a rotating shaft. When the pushing mechanism moves to the right, the one-way rotating plate cannot rotate. The pushing mechanism can push the measuring component on the far left inside the accommodating groove to move it to the right. When the pushing mechanism moves to the leftmost position, under the guidance of the inclined groove to the guide rod, the two relative groups of movable rods will move away from each other, so that there is a gap between the relative one-way rotating plates, which is convenient for the measuring component to enter and exit.

[0014] Furthermore, the speed increasing transmission structure includes an end gear fixedly connected to the top output end of the double-headed motor, and also includes an active disk rotatably connected to the inside of the outer shell, one side of the active disk is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to a bevel gear, and the bevel gear is meshingly connected to the end gear.

[0015] Furthermore, a driven disk is fixedly connected to the transmission shaft, and the diameter of the driven disk is smaller than that of the driving disk. A belt is installed between the driving disk and the driven disk. When the double-headed motor rotates, the sleeve, the movable frame and the one-way rotating block are driven up and down inside the shell through the screw. The driving disk can be driven to rotate through the engagement of the end gear and the bevel gear, and then the transmission shaft is driven to rotate through the belt and the driven disk.

[0016] Furthermore, the measuring assembly includes a shell, and an upper rivet rod and a lower rivet rod fixedly installed on the upper and lower parts of the shell. The bottom of the lower rivet rod is conically arranged, and the top of the upper rivet rod is fixedly connected with a fixed block, and the thickness of the fixed block is less than the height inside the movable frame.

[0017] Furthermore, a storage cavity is provided inside the shell, a fixed shaft is rotatably connected to the middle of the storage cavity, a torsion spring is provided between the outside of the fixed shaft and the shell, a tape measure is also wound around the outside of the fixed shaft, one end of the tape measure extends to the outside of the shell and is fixedly connected to a fixing pin, a fixing groove corresponding to the fixing pin is provided on the outside of the shell, and the distance between two adjacent nodes can be measured by connecting the fixing pin to the adjacent fixing groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a land area measuring device for land classification. The present invention realizes automatic deployment and recovery of the measuring component through the coordinated action of the installation and disassembly mechanism and the lateral pushing component. The double-headed motor drives the screw and the sleeve to complete the vertical pressing and pulling out of the measuring component. Combined with the speed increasing transmission structure and the lateral movement of the pushing mechanism, manual intervention is significantly reduced and the measuring efficiency is greatly improved. The device is particularly suitable for rapid measurement of multi-node complex terrain. A plurality of groups of accommodating slots are arranged in the accommodating box to integrate and store a plurality of groups of measuring components, and the overall movement of the device is realized through the mobile base. Compared with the traditional tape measure method which requires carrying multiple sets of tools, the integrated design of the device of the present invention simplifies the carrying process and reduces the complexity of field operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of the present invention;

[0022] Figure 3 It is a partial structural split diagram of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the containing box, the installation and disassembly mechanism, the lateral pushing assembly and the measuring assembly of the present invention;

[0024] Figure 5 It is a structural section diagram of the container box of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the installation and disassembly mechanism of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the sleeve, the movable frame and the one-way rotating block of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the lateral pushing assembly of the present invention;

[0028] Fig. 9 It is an exploded diagram of the pushing mechanism structure of the present invention;

[0029] Fig.10It is a schematic structural diagram of the transmission shaft, the driven plate, the external thread, the first fixing ring and the second fixing ring of the present invention;

[0030] Fig.11 It is an exploded diagram of the measurement component structure of the present invention;

[0031] Fig.12 This is a measurement implementation diagram of the present invention.

[0032] In the figure: 1, housing; 11, movable base; 12, mounting slot; 13, inlet and outlet slot; 2, receiving box; 21, receiving slot; 22, first spring; 23, sliding plate; 24, connecting slot; 25, inlet; 26, inclined slot; 27, straight slot; 3, installation and disassembly mechanism; 31, double-headed motor; 32, screw; 33, sleeve; 34, movable frame; 35, one-way rotating block; 4, horizontal pushing assembly; 41, end gear; 42, driving disk; 421, connecting rod; 422, bevel gear; 43, belt; 44, transmission Shaft; 45, driven plate; 46, external thread; 47, first fixing ring; 471, second spring; 48, second fixing ring; 481, third spring; 49, pushing mechanism; 491, pushing frame; 492, movable rod; 493, guide rod; 494, one-way rotating plate; 495, rotating shaft; 5, measuring assembly; 51, housing; 511, storage chamber; 512, fixing groove; 52, upper rivet rod; 521, fixing block; 53, lower rivet rod; 54, tape measure; 541, fixing pin; 55, torsion spring; 56, fixing shaft. DETAILED DESCRIPTION

[0033] 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.

[0034] In order to solve the technical problems of the existing tape measurement method, such as complex operation and low work efficiency, Figure 1-Figure 12 As shown, the following preferred technical solutions are provided:

[0035] like Figure 1-3As shown, a land area measuring device for land classification includes a housing 1 and a containing box 2 installed inside the housing 1, and also includes a measuring component 5 arranged inside the containing box 2. A containing slot 21 for containing multiple groups of measuring components 5 is horizontally arranged inside the containing box 2. An inlet 25 for the measuring components 5 to enter and exit is arranged on one side of the containing box 2. The upper part of the inlet 25 is connected to the lower part of one side of the containing slot 21 through a connecting slot 24. An installation and disassembly mechanism 3 is arranged above the containing box 2 inside the housing 1. A lateral pushing component 4 is arranged outside the containing box 2 inside the housing 1. The installation and disassembly mechanism 3 is used to install the measuring component 5 on the ground and pull it out from the ground. The lateral pushing component 4 is used to transport the measuring component 5 pulled out from the opposite side by the installation and disassembly mechanism 3 back to the inside of the containing slot 21.

[0036] like Figure 6 As shown, the mounting and disassembly mechanism 3 includes a double-headed motor 31 fixedly arranged inside the housing 1, a screw 32 is fixedly connected to the output end below the double-headed motor 31, a sleeve 33 is threadedly connected below the screw 32, a movable frame 34 is fixedly installed at the bottom of the sleeve 33, the movable frame 34 is slidably connected to the inside of the housing 1, and a one-way rotating block 35 is movably installed at the bottom of the movable frame 34;

[0037] like Figure 8 As shown, the lateral pushing assembly 4 includes an end gear 41 fixedly connected to the output end of the top of the double-headed motor 31, a transmission shaft 44 rotatably connected to the front and rear of the outside of the containing box 2, and a speed-increasing transmission structure arranged inside the housing 1, and the speed-increasing transmission structure is located between the top of the double-headed motor 31 and the transmission shaft 44, as shown in FIG. Fig.10 As shown, an external thread 46 is provided in the middle of the transmission shaft 44, and a first fixing ring 47 and a second fixing ring 48 are fixedly connected to the outer wall of the containing box 2. The first fixing ring 47 and the second fixing ring 48 are located outside the transmission shaft 44, and the inner sides of the first fixing ring 47 and the second fixing ring 48 are respectively fixedly connected with a second spring 471 and a third spring 481, and the front and rear external parts of the containing box 2 are slidably connected with a pushing mechanism 49, and the pushing mechanism 49 corresponds to the transmission shaft 44 and the external thread 46 on the outside of the transmission shaft 44.

[0038] like Figure 3 As shown, a movable base 11 is installed at the bottom of the shell 1, and the movable base 11 is used to drive the entire device to move. A penetrating installation groove 12 is provided inside the shell 1, and the receiving box 2 is embedded and installed inside the installation groove 12. A penetrating entry and exit groove 13 is provided inside the shell 1, and the entry and exit groove 13 is used for the entry and exit of the measuring component 5. A sliding plate 23 is slidably connected to the inside of the receiving groove 21, and a first spring 22 is provided between the sliding plate 23 and the inner wall of the receiving box 2, and the first spring 22 is used to keep the measuring component 5 inside the receiving groove 21 in a tightly fitting state.

[0039] like Figure 7 As shown, the movable frame 34 is arched. When the movable frame 34 presses down the measuring component 5, the inner wall of its top contacts the measuring component 5. The one-way rotating block 35 is rotatably connected to the inner lower side of the movable frame 34, and the rotation connection between the movable frame 34 and the one-way rotating block 35 is located at the upper outer corner of the one-way rotating block 35, so that the one-way rotating block 35 can be rotated upward but not downward. When the movable frame 34 lifts and pulls up the measuring component 5, the upper surface of the one-way rotating block 35 contacts the measuring component 5.

[0040] The pushing frame 491 is provided with a thread groove corresponding to the external thread 46, the distance between the first fixing ring 47 and the external thread 46 is greater than the thickness of the pushing frame 491, and the distance between the second fixing ring 48 and the external thread 46 is greater than the thickness of the pushing frame 491. When the transmission shaft 44 rotates, the pushing frame 491 moves to the left under the action of the external thread 46. As the transmission shaft 44 rotates, the pushing frame 491 does not move until it moves to the outer surface of the transmission shaft 44 between the first fixing ring 47 and the external thread 46. When waiting for the transmission shaft 44 to rotate in the opposite direction, the pushing frame 491 is quickly threadedly connected with the external thread 46 and moves to one side of the second fixing ring 48.

[0041] like Figure 5 As shown, the surface of the container 2 is provided with inclined grooves 26 and straight grooves 27, and the inclined grooves 26 and straight grooves 27 are connected and provided with four groups in total, as shown in FIG. Fig. 9 As shown, the pushing mechanism 49 includes a pushing frame 491, and the upper and lower ends of the pushing frame 491 are slidably connected to the inner sides of the movable rod 492, and the movable rod 492 is fixedly connected to the guide rod 493, and the guide rod 493 is movably arranged in the inclined groove 26 and the straight groove 27. The inner edge of the movable rod 492 is rotatably connected to the one-way rotating plate 494 through the rotating shaft 495. When the pushing mechanism 49 moves to the right, the one-way rotating plate 494 cannot rotate. The pushing mechanism 49 can push the measuring component 5 on the far left inside the accommodating groove 21 to move it to the right. When the pushing mechanism 49 moves to the far left position, under the guidance of the guide rod 493 of the inclined groove 26, the two relative groups of movable rods 492 will move away from each other, so that there is a gap between the relative one-way rotating plates 494, which is convenient for the measuring component 5 to enter and exit.

[0042] like Figure 8 and Fig.10As shown, the speed increasing transmission structure includes an end gear 41 fixedly connected to the top output end of the double-headed motor 31, and also includes an active disk 42 rotatably connected to the inside of the shell 1, one side of the active disk 42 is fixedly connected to a connecting rod 421, the end of the connecting rod 421 is fixedly connected to a bevel gear 422, the bevel gear 422 is meshingly connected to the end gear 41, and a driven disk 45 is fixedly connected to the transmission shaft 44, the diameter of the driven disk 45 is smaller than the diameter of the active disk 42, and a belt 43 is sleeved between the active disk 42 and the driven disk 45. When the double-headed motor 31 rotates, the sleeve 33, the movable frame 34 and the one-way rotating block 35 are driven to move up and down inside the shell 1 through the screw 32, and the active disk 42 can be driven to rotate through the meshing of the end gear 41 and the bevel gear 422, and then the transmission shaft 44 is driven to rotate through the belt 43 and the driven disk 45.

[0043] like Fig.11 As shown, the measuring assembly 5 includes a shell 51, and an upper rivet rod 52 and a lower rivet rod 53 fixedly installed on the upper and lower parts of the shell 51. The bottom of the lower rivet rod 53 is set in a cone shape, and the top of the upper rivet rod 52 is fixedly connected with a fixed block 521. The thickness of the fixed block 521 is less than the height inside the movable frame 34.

[0044] A storage chamber 511 is provided inside the shell 51, and a fixed shaft 56 is rotatably connected to the middle of the storage chamber 511. A torsion spring 55 is provided between the outside of the fixed shaft 56 and the shell 51, and a tape measure 54 is also wound around the outside of the fixed shaft 56. One end of the tape measure 54 extends to the outside of the shell 51 and is fixedly connected to a fixing pin 541. A fixing groove 512 corresponding to the fixing pin 541 is provided on the outside of the shell 51. The distance between two adjacent nodes can be measured by connecting the fixing pin 541 to the adjacent fixing groove 512.

[0045] First determine the number of nodes of the land, such as Fig.12 As shown, for example, the land to be measured is approximately a pentagon. According to the shape of the land, the number of nodes is determined to be 5 nodes. Two additional groups of measuring components 5 are arranged on the adjacent node connection line, a total of 7 groups. The equipment is carried to the first node position by the mobile base 11 to ensure that the measuring component 5 is aligned with the edge of the land, and the double-headed motor 31 is started to rotate forward, driving the screw 32 to drive the sleeve 33 and the movable frame 34 to move downward. The end gear 41 is engaged with the bevel gear 422, and the driving disk 42 is driven to rotate through the connecting rod 421. The transmission shaft 44 is driven to rotate through the belt 43, so that the pushing mechanism 49 moves to the left. The first spring 22 pushes the leftmost measuring component 5 to slide out along the connecting groove 24, and the fixing block 521 is embedded in the inner side of the movable frame 34. The movable frame 34 is continuously pressed down to press the measuring component 5 vertically into the ground to complete the fixation. The equipment is moved to the next node, and the above steps are repeated until all measuring components 5 are installed.

[0046] Read the scale value of each measuring component 5, measure the distance between the head and tail measuring components 5 to obtain the edge length, and record the angle data of each node to achieve accurate calculation of the land shape and area;

[0047] When the measuring component 5 is recovered, the mobile device aligns the measuring component 5 with the entrance 25, drives the double-headed motor 31 in reverse, and the movable rod 492 pushes the component in the accommodating groove 21 to move right to make room. The pulled-out component slides into the accommodating groove 21 through the inclined groove 26 to complete the recovery. Then the mobile device allows the measuring component 5 on the ground to enter the entrance 25 of the equipment again. The double-headed motor 31 is controlled alternately in forward and reverse rotation to achieve continuous recovery of the measuring component 5 and reset the equipment, preparing for the next measurement.

[0048] 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.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A land area measuring device for land classification, comprising a housing (1) and a containing box (2) installed inside the housing (1), and also comprising a measuring component (5) arranged inside the containing box (2), characterized in that: A receiving groove (21) for receiving a plurality of groups of measuring components (5) is transversely arranged inside the receiving box (2); an inlet (25) for the measuring components (5) to enter and exit is arranged on one side of the receiving box (2); the upper part of the inlet (25) is connected to the lower part of one side of the receiving groove (21) via a connecting groove (24); a mounting and disassembly mechanism (3) is arranged inside the housing (1) above the receiving box (2); a transverse pushing component (4) is arranged inside the housing (1) outside the receiving box (2); the mounting and disassembly mechanism (3) is used to mount the measuring components (5) on the ground and to pull them out from the ground; and the transverse pushing component (4) is used to transport the measuring components (5) pulled out from the opposite side by the mounting and disassembly mechanism (3) back to the inside of the receiving groove (21); The mounting and disassembly mechanism (3) comprises a double-headed motor (31) fixedly arranged inside the housing (1), a screw (32) fixedly connected to the output end below the double-headed motor (31), a sleeve (33) threadedly connected below the screw (32), a movable frame (34) fixedly installed at the bottom of the sleeve (33), the movable frame (34) slidably connected to the inside of the housing (1), and a one-way rotating block (35) movably installed at the bottom of the movable frame (34); The lateral pushing assembly (4) comprises an end face gear (41) fixedly connected to the top output end of the double-headed motor (31), a transmission shaft (44) rotatably connected to the front and rear of the outside of the accommodating box (2), and a speed-increasing transmission structure arranged inside the housing (1), the speed-increasing transmission structure is located between the top of the double-headed motor (31) and the transmission shaft (44), an external thread (46) is arranged in the middle of the transmission shaft (44), a first fixing ring (47) and a second fixing ring (48) are fixedly connected to the outer wall of the accommodating box (2), the first fixing ring (47) and the second fixing ring (48) are located outside the transmission shaft (44), a second spring (471) and a third spring (481) are fixedly connected to the inner sides of the first fixing ring (47) and the second fixing ring (48), respectively, a pushing mechanism (49) is slidably connected to the front and rear exterior of the accommodating box (2), and the pushing mechanism (49) corresponds to the transmission shaft (44) and the external thread (46) outside the transmission shaft (44).

2. The land area measuring device for land classification according to claim 1, characterized in that: A movable base (11) is installed below the shell (1), and the movable base (11) is used to drive the entire device to move. A through installation groove (12) is provided inside the shell (1), and the storage box (2) is embedded in the installation groove (12). A through entry and exit groove (13) is provided inside the shell (1), and the entry and exit groove (13) is used for the entry and exit of the measurement component (5). A sliding plate (23) is slidably connected inside the storage groove (21), and a first spring (22) is provided between the sliding plate (23) and the inner wall of the storage box (2).

3. The land area measuring device for land classification according to claim 1, characterized in that: The movable frame (34) is arched, the one-way rotating block (35) is rotatably connected to the lower inner side of the movable frame (34), and the rotation connection between the movable frame (34) and the one-way rotating block (35) is located at the upper outer corner of the one-way rotating block (35).

4. The land area measuring device for land classification according to claim 1, characterized in that: The pushing frame (491) is provided with a thread groove corresponding to the external thread (46); the distance between the first fixing ring (47) and the external thread (46) is greater than the thickness of the pushing frame (491); and the distance between the second fixing ring (48) and the external thread (46) is greater than the thickness of the pushing frame (491).

5. The land area measuring device for land classification according to claim 1, characterized in that: The surface of the containing box (2) is provided with inclined grooves (26) and straight grooves (27), and the inclined grooves (26) and the straight grooves (27) are connected and are provided in four groups in total.

6. The land area measuring device for land classification according to claim 5, characterized in that: The pushing mechanism (49) comprises a pushing frame (491), wherein the inner sides of the upper and lower ends of the pushing frame (491) are slidably connected to a movable rod (492), the movable rod (492) is fixedly connected to a guide rod (493), the guide rod (493) is movably arranged in an inclined groove (26) and a straight groove (27), and the inner side edge of the movable rod (492) is rotatably connected to a one-way rotating plate (494) via a rotating shaft (495).

7. The land area measuring device for land classification according to claim 1, characterized in that: The speed increasing transmission structure comprises an end face gear (41) fixedly connected to the top output end of the double-headed motor (31), and also comprises an active disk (42) rotatably connected to the inside of the housing (1), a connecting rod (421) being fixedly connected to one side of the active disk (42), a bevel gear (422) being fixedly connected to the end of the connecting rod (421), and the bevel gear (422) being meshingly connected to the end face gear (41).

8. The land area measuring device for land classification according to claim 7, characterized in that: The transmission shaft (44) is fixedly connected with a driven disk (45), the diameter of the driven disk (45) is smaller than the diameter of the driving disk (42), and a belt (43) is sleeved between the driving disk (42) and the driven disk (45).

9. The land area measuring device for land classification according to claim 3, characterized in that: The measuring assembly (5) comprises a housing (51), and an upper rivet rod (52) and a lower rivet rod (53) fixedly mounted above and below the housing (51); the bottom of the lower rivet rod (53) is arranged in a conical shape; the top of the upper rivet rod (52) is fixedly connected to a fixing block (521); the thickness of the fixing block (521) is smaller than the height inside the movable frame (34).

10. The land area measuring device for land classification according to claim 9, characterized in that: The housing (51) is provided with a storage chamber (511) inside, a fixed shaft (56) is rotatably connected in the middle of the storage chamber (511), a torsion spring (55) is provided between the outside of the fixed shaft (56) and the housing (51), a tape measure (54) is also wound around the outside of the fixed shaft (56), one end of the tape measure (54) extends to the outside of the housing (51) and is fixedly connected to a fixing pin (541), and a fixing groove (512) corresponding to the fixing pin (541) is provided on the outside of the housing (51).

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