Area measuring device for land planning

Abstract

The utility model relates to the technical field of land area measurement, and discloses an area measuring device for land planning, which comprises a connecting rod, the front side of the connecting rod is provided with a fixing groove, the top of the front side of the connecting rod is fixedly connected with a hinge, and the bottom of the hinge is rotatably connected with a clamping plate. A sliding groove is formed in the middle of the front side of the connecting rod, a sliding block is slidably connected to the inner wall of the sliding groove, a first spring is fixedly connected to the bottom of the sliding block, a control block is fixedly connected to the front side of the sliding block, and a limiting cover is fixedly connected to the middle of the front side of the connecting rod. A square hole is formed in the middle of the limiting cover. According to the utility model, when the distance measuring rod moves to a corner, the connecting rod is fixed at the corner of the land, and a new connecting rod is installed at the corner subsequently, the distance measuring rod is pulled continuously, so that a plurality of edge lengths of the land can be measured at one time, and the measurement efficiency and convenience are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to land area measurement technical field especially relates to an area measuring device for land planning. BACKGROUND

[0002] The area measurement for land planning aims to accurately determine the size of the land range, providing key data support for various land development and utilization projects. Through professional instruments and scientific methods, the land with different topography purposes is measured and operated. In urban construction, the building land area can be determined to ensure that the planning layout is reasonable and compliant. In terms of natural resource protection, the area of forest land and wetland can be measured to provide a basis for ecological protection strategy formulation. Through rigorous measurement and data analysis, the land planning is more scientific, accurate and forward-looking, promoting the efficient and sustainable use of land resources.

[0003] After searching, the Chinese patent publication No. CN114608422A discloses a land area measuring device for land resource surveying and mapping, which comprises a base, a moving assembly is arranged on the inner wall of the base, the moving assembly can drive the base to move, a storage box is fixedly connected to the top of the base, a winding rod is rotatably connected to the top of the storage box, the other end of the measuring tape extends to the outside through the inner wall of the storage box and is connected with a positioning rod, a transmission assembly is rotatably connected to the rear inner wall of the storage box, a guide assembly is rotatably connected to the left inner wall of the storage box, the transmission assembly drives the guide assembly, the guide assembly uniformly winds the measuring tape, the rear inner wall of the storage box is rotatably connected with the transmission assembly, the left inner wall of the storage box is rotatably connected with the guide assembly, the transmission assembly drives the guide assembly, the guide assembly uniformly winds the measuring tape, in actual use, the positioning rod is pulled first, the measuring tape is pulled out of the storage box, and then the length of the land is measured, but when measuring multiple land lengths, the position of the storage box needs to be adjusted frequently to measure different land lengths, which makes the measurement work slow and prolongs the measurement time, affecting the measurement efficiency. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides an area measuring device for land planning, aiming to improve the problem that the position of the positioning rod and the tape measure storage box needs to be adjusted frequently when measuring the land area in the prior art, resulting in low efficiency of measuring the land length.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a land planning area measuring device, including connecting rod, the front side of connecting rod is equipped with fixed slot, the front side top of connecting rod is fixedly connected with hinge, the bottom of hinge is rotatably connected with clamping plate, the bottom of clamping plate is fixedly connected with the clamping block of card, the front side middle part of connecting rod is equipped with sliding slot, the inner wall of sliding slot is slidably connected with sliding block, the bottom of sliding block is fixedly connected with spring one, the front side of sliding block is fixedly connected with control block, the front side middle part of connecting rod is fixedly connected with limit cover, the middle part of limit cover is equipped with square hole, the outer wall of control block penetrates the inner wall of square hole, the inner wall of fixed slot is fixedly connected with tape, the right side of tape is fixedly connected with rotating shaft, the outer wall middle part of rotating shaft is fixedly connected with winding cover, the top of winding cover is provided with resistance mechanism, and the resistance mechanism is used to increase resistance in the process of pulling tape.

[0006] Through the above technical scheme: the front side of connecting rod is equipped with fixed slot for placing tape, the hinge is connected with the front side top of connecting rod, so that the clamping plate can be rotated around the hinge, the clamping block can fix the position when the clamping plate is closed, so that the clamping plate is fixed in the inner wall of fixed slot, the sliding slot can make the sliding block slidably connected with it smoothly slide up and down in its inside, the sliding block is used to control the clamping block below the clamping plate, so as to achieve the fixing effect of the clamping plate, the bottom of sliding block is fixedly connected with elastic spring, under the action of no external force, the spring can push the sliding block upward, so that the clamping block can be clamped, the front side of sliding block is fixedly connected with control block, the position of sliding block can be indirectly controlled by operating the control block, the limit cover is further fixedly connected with the front side middle part of connecting rod, which plays a limiting protection role on the internal components, the square hole is arranged in the middle part of limit cover, the outer wall of control block can penetrate the inner wall of square hole, and the sliding control block can control the sliding block to slide up and down, the tape is connected with the inner wall of fixed slot, the tape is used as a key tool for measuring the length and width of land, the right side of tape is fixedly connected with rotating shaft, the rotating shaft provides rotary support for the winding and expansion of tape, the winding cover is fixedly connected with the outer wall middle part of rotating shaft, and the winding cover is used to store the tape in the winding box.

[0007] Further description of the above technical scheme:

[0008] The resistance mechanism includes a fixed plate, a plurality of protrusions are fixedly connected to the top of the fixed plate, a rotating disc is fixedly connected to the outer wall of the rotating shaft, a plurality of square slots are arranged in the bottom of the rotating disc, a spring No.

[0009] Through the technical scheme, the plurality of protrusions are fixedly connected to the top of the fixed plate in a specific arrangement, the shapes of the protrusions are smoothly processed, and the friction can be effectively reduced when the protrusions contact the moving block; the rotating disc is fixedly connected to the outer wall of the rotating shaft, so that the rotating disc can stably and synchronously rotate with the rotating shaft during rotation of the rotating shaft; a plurality of square grooves are uniformly formed in the bottom of the rotating disc, the inner wall of each square groove is connected with a spring, the spring is fixedly connected with the moving block, the shape of the moving block matches the inner space of the square groove, so that the moving block can freely move up and down in the square groove; when the whole device is in a stationary state, the bottom of the moving block is tightly attached to the top of the fixed plate; due to the existence of the protrusions and the pressure of the spring on the moving block, friction will be generated between the moving block and the protrusions during rotation of the rotating disc, so that the resistance during pulling of the measuring tape is effectively increased, the stability of the measuring tape during pulling and the accuracy of measurement are ensured, and the phenomenon of releasing too much during pulling of the measuring tape is prevented.

[0010] Further description of the above technical scheme is as follows:

[0011] The top of the rotating shaft is fixedly connected with a winding handle, and the bottom of the winding cover is fixedly connected with a winding box.

[0012] Through the above technical scheme, the winding handle connected to the top of the rotating shaft can make the user more convenient and labor-saving when winding the measuring tape, and the winding box as a containing space for winding operation of the measuring tape can provide a suitable storage area for the measuring tape.

[0013] Further description of the above technical scheme is as follows:

[0014] The left side of the measuring tape is fixedly connected with a distance measuring rod, and the bottom of the distance measuring rod is slidingly connected with a ground insertion foot.

[0015] Through the above technical scheme, the distance measuring rod serves as a moving distance measuring component during measurement, and the measuring tape is released and unfolded by pulling the distance measuring rod, so as to achieve the purpose of distance measurement; the ground insertion foot can be flexibly slid up and down along the bottom of the distance measuring rod according to actual measurement requirements, so as to adapt to various measurement scenes.

[0016] Further description of the above technical scheme is as follows:

[0017] The top outer wall of the ground insertion foot is fixedly connected with a plurality of threaded strips, and the top of the ground insertion foot is provided with a plurality of strip-shaped grooves.

[0018] Through the above technical scheme, the threaded strips are matched with the threaded sleeves, and the threaded sleeves are rotated; because the top of the ground insertion foot is provided with a plurality of strip-shaped grooves, the top of the ground insertion foot can be retracted, and the position of the distance measuring rod is fixed.

[0019] As a further description of the above technical solutions:

[0020] The top of the ground insertion foot is threadedly connected with a threaded sleeve, and the top of the distance measuring rod is fixedly connected with an indicator lamp.

[0021] Through the above technical solutions: the top of the ground insertion foot is connected with the threaded sleeve, the distance measuring rod can be fixed at a specific height position by rotating the threaded sleeve, the demand for measurement work under various different terrain conditions is met, the indicator lamp has the ability to emit bright light in a dim light environment, and the bright light emitted by the indicator lamp can provide clear visual guidance for the measurement personnel who are operating when the measurement operation is in a light insufficient condition.

[0022] As a further description of the above technical solutions:

[0023] The top of the connecting rod is fixedly connected with a reflective strip, and the bottom of the connecting rod is fixedly connected with a supporting foot.

[0024] Through the above technical solutions: the reflective strip has a reflective effect, which can be a prominent sign in a more complex light measurement environment, prompting the staff to the position of the connecting rod, and the supporting foot has a larger contact area with the ground, which can evenly disperse the weight of the measurement device by virtue of the wide contact bottom surface, thereby providing stable and reliable support.

[0025] As a further description of the above technical solutions:

[0026] The bottom of the winding box is fixedly connected with a supporting plate, and the bottom of the supporting plate is fixedly connected with a positioning rod.

[0027] Through the above technical solutions: the supporting plate bears a supporting role in the structure of the measurement device, has sufficient strength and stability, and can stably bear the weight of the winding box, and the positioning rod can penetrate into the ground to form a close and stable connection with the ground, thereby providing a stable guarantee for obtaining accurate measurement data.

[0028] The utility model has the advantages of:

[0029] 1. In the utility model, when measuring land, first adjust the positioning rod to a suitable position and insert it into the ground, place the tape measure in the fixed groove of the connecting rod, at this time the connecting rod is in the positioning rod and the middle of the distance measuring rod, pull the distance measuring rod to stretch the tape measure, make the rotating shaft rotate, when the distance measuring rod moves to the corner, fix the connecting rod at the corner of the land, then install a new connecting rod when encountering a corner again, continue to pull the distance measuring rod, realize one-time measurement of multiple land lengths, and improve the measurement efficiency and convenience.

[0030] 2. The utility model discloses when the tape measure is pulled, the pivot rotates and drives the rotating disc that is connected therewith synchronous rotation, because the mobile block is closely attached with the fixed plate top lug under the action of spring no. 2 bottom, spring no. 2 releases the downward pressure to the mobile block, makes the friction of both, increases the resistance of pulling the tape measure, avoids the disorder and damage of tape measure because of too fast or too slow release, guarantees the stability of tape measure in the measuring process, promotes the accuracy when measuring the side length. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A three-dimensional view of the area measuring device for land planning is provided for the utility model;

[0032] Figure 2 A clamping plate structure diagram of the area measuring device for land planning is provided for the utility model;

[0033] Figure 3 A tape measure structure schematic diagram of the area measuring device for land planning is provided for the utility model;

[0034] Figure 4 A resistance mechanism sectional view of the area measuring device for land planning is provided for the utility model;

[0035] Figure 5 A threaded sleeve structure schematic diagram of the area measuring device for land planning is provided for the utility model.

[0036] Legend:

[0037] 1, positioning rod, 2, resistance mechanism, 201, fixed plate, 202, lug, 203, rotating disc, 204, mobile block, 205, spring no. 2, 206, square groove, 3, support plate, 4, winding box, 5, tape measure, 6, connecting rod, 7, hinge, 8, clamping plate, 9, clamping block, 10, fixed slot, 11, sliding slot, 12, sliding block, 13, spring no. 1, 14, limit cover, 15, square hole, 16, control block, 17, support foot, 18, reflective strip, 19, winding cover, 20, pivot, 21, winding handle, 22, distance measuring rod, 23, ground insertion foot, 24, threaded sleeve, 25, strip groove, 26, threaded strip, 27, indicator light. DETAILED DESCRIPTION

[0038] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0039] ReferFigure 1 and Figure 2 The utility model provides an embodiment of an area measuring device for land planning, comprising a connecting rod 6, a fixing slot 10 is provided on the front side of the connecting rod 6, a hinge 7 is fixedly connected to the top of the front side of the connecting rod 6, and a clamping plate 8 is rotatably connected to the bottom of the hinge 7. A clamping block 9 is fixedly connected to the bottom of the clamping plate 8. A sliding slot 11 is provided at the middle part of the front side of the connecting rod 6, a slider 12 is slidably connected to the inner wall of the sliding slot 11, and a spring 13 is fixedly connected to the bottom of the slider 12. A control block 16 is fixedly connected to the front side of the slider 12, and a limit cover 14 is fixedly connected to the middle part of the front side of the connecting rod 6. A square hole 15 is provided in the middle part of the limit cover 14, and the outer wall of the control block 16 passes through the inner wall of the square hole 15. The inner wall of the fixing slot 10 is fixedly connected to the tape measure 5, and the right side of the tape measure 5 is fixedly connected to the rotating shaft 20. The middle part of the outer wall of the rotating shaft 20 is fixedly connected to the winding cover 19. A resistance mechanism 2 is provided on the top of the winding cover 19, and the resistance mechanism 2 is used to increase the resistance during the pulling of the tape measure 5;

[0040] Specifically, a fixing groove 10 is provided on the front side of the connecting rod 6, and the fixing groove 10 is used as the placement of the subsequent tape measure 5. A hinge 7 is connected to the top of the front side of the connecting rod 6, so that the clamping plate 8 can rotate around the hinge 7. A clamping block 9 is connected to the bottom of the clamping plate 8. The clamping block 9 is used to fix the position of the clamping plate 8 when it is closed, so that the clamping plate 8 can fix the tape measure 5 on the inner wall of the fixing groove 10. A sliding groove 11 is also provided in the middle of the front side of the connecting rod 6. The sliding groove 11 allows the slider 12 slidably connected thereto to slide up and down smoothly inside it. The slider 12 controls the clamping block 9 under the clamping plate 8 to complete the fixing effect of the clamping plate 8. The bottom of the slider 12 is fixedly connected to a spring 13. The spring 13 is elastic and can provide corresponding elastic force during the movement of the slider 12. When there is no external force, the slider 12 can be pushed upward to The card block 9 is engaged, and the front side of the slider 12 is fixedly connected to a control block 16. The position of the slider 12 can be indirectly controlled by operating the control block 16. A limit cover 14 is also fixedly connected to the middle of the front side of the connecting rod 6. The limit cover 14 plays a role of limiting protection for the internal components. A square hole 15 is opened in the middle of the limit cover 14. The outer wall of the control block 16 can penetrate the inner wall of the square hole 15, so that the slider 12 can be controlled by sliding the control block 16 outside to slide up and down. A tape measure 5 is connected to the inner wall of the fixed groove 10. The tape measure 5 is a key measurement tool for measuring the length and width of the land. A rotating shaft 20 is fixedly connected to its right side. The rotating shaft 20 provides a rotating support for the winding and extension of the tape measure 5. A winding cover 19 is fixedly connected to the middle of the outer wall of the rotating shaft 20. The winding cover 19 is used to store the tape measure 5 in the winding box 4.

[0041] Reference Figure 1 、 Figure 3 andFigure 4 The resistance mechanism 2 comprises a fixed plate 201, a plurality of protrusions 202 are fixedly connected to the top of the fixed plate 201, a rotating disc 203 is fixedly connected to the outer wall of the rotating shaft 20, a plurality of square grooves 206 are formed in the bottom of the rotating disc 203, spring No. 205 is fixedly connected to the inner wall of the top of the square groove 206, and the moving block 204 is fixedly connected to the bottom of the spring No. 205; the bottom of the moving block 204 is attached to the top of the fixed plate 201.

[0042] Specifically, a plurality of protrusions 202 are fixedly connected to the top of the fixed plate 201 in an array, the shapes of the protrusions 202 are smoothed to reduce friction when in contact with the moving block 204, the outer wall of the rotating shaft 20 is fixedly connected to the rotating disc 203 to ensure that the rotating disc 203 can stably and synchronously rotate with the rotating shaft 20 during rotation of the rotating shaft 20, a plurality of square grooves 206 are uniformly formed in the bottom of the rotating disc 203, spring No. 205 is connected to the inner wall of the square groove 206, spring No. 205 is fixedly connected to the moving block 204, the shape of the moving block 204 matches the internal space of the square groove 206, so that it can move up and down in the square groove 206, when the entire device is in a stationary state, the bottom of the moving block 204 is attached to the top of the fixed plate 201, due to the presence of the protrusions 202 and the pressure of spring No. 205 on the moving block 204, friction will be generated between the moving block 204 and the protrusions 202 during rotation of the rotating disc 203, thereby effectively increasing the resistance during pulling of the measuring tape 5, ensuring the stability and accuracy of the measuring tape 5 during use, and avoiding the release of too much when pulling the measuring tape 5.

[0043] Referring to Figure 1 , Figure 2 and Figure 4 , the top of the rotating shaft 20 is fixedly connected to the winding handle 21, the bottom of the winding cover 19 is fixedly connected to the winding box 4, the left side of the measuring tape 5 is fixedly connected to the distance measuring rod 22, the bottom of the distance measuring rod 22 is slidingly connected to the ground insertion foot 23, a plurality of threaded strips 26 are fixedly connected to the top outer wall of the ground insertion foot 23, and a plurality of strip grooves 25 are formed in the top of the ground insertion foot 23.

[0044] Specific, the top of the rotating shaft 20 is connected with the winding handle 21, the winding handle 21 in order to use the user in winding tape 5, can be more relaxed, the bottom of the winding cover 19 is connected with the winding box 4, the winding box 4 as the tape 5 winding when the containing space, the left side of the tape 5 is fixedly connected with the ranging rod 22, the ranging rod 22 as the ranging component moves, pull the ranging rod 22, can release the tape 5, complete the ranging purpose, at the bottom of the ranging rod 22, slidingly connected with the inserted foot 23, the inserted foot 23 can slide up and down along the bottom of the ranging rod 22, for extending the length of the ranging rod 22 to adapt to different measurement scene, the top outer wall of the inserted foot 23 is fixedly connected with a plurality of threaded strips 26, the threaded strips 26 are spirally wrapped around the top outer wall of the inserted foot 23, the top of the inserted foot 23 is also provided with a plurality of strip-shaped grooves 25, for threaded sleeve 24 rotation, can shrink the top of the inserted foot 23, so as to fix the height of the ranging rod 22.

[0045] Referring to Figure 1 , Figure 3 and Figure 5 , the top of the inserted foot 23 is threadedly connected with the threaded sleeve 24, the top of the ranging rod 22 is fixedly connected with the indicator light 27, the top of the connecting rod 6 is fixedly connected with the reflective strip 18, the bottom of the connecting rod 6 is fixedly connected with the support foot 17, the bottom of the winding box 4 is fixedly connected with the support plate 3, the bottom of the support plate 3 is fixedly connected with the positioning rod 1;

[0046] Specific, the top of the inserted foot 23 is connected with the threaded sleeve 24, forming a threaded connection relationship, by rotating the threaded sleeve 24, the top of the inserted foot 23 can be retracted, fixing the height on the ranging rod 22, to adapt to the measurement requirements under different terrain conditions, the top of the ranging rod 22 is installed with the indicator light 27, the indicator light 27 can emit bright light in the relatively dark environment, providing clear visual indication for the operator in the operation process, the top of the connecting rod 6 is fixedly connected with the reflective strip 18, which can form a reflective effect when light is irradiated, prompting the staff to the position of the connecting rod 6, the bottom of the connecting rod 6 is fixedly connected with the support foot 17, the support foot 17 has a large contact area with the ground, which can provide stable support force on different ground materials, ensuring that the entire measuring device remains balanced and stable during placement and use, the bottom of the winding box 4 is fixedly connected with the support plate 3, the support plate 3 as the support component of the winding box 4, can bear the weight of the winding box 4 and the internal tape 5 components, and disperse it to the positioning rod 1 below, the positioning rod 1 can be deeply into the ground to a certain depth, enhancing the fixity of the entire measuring device on the ground, preventing displacement due to wind, collision and other external factors during measurement.

[0047] Working principle: when measuring the land, the positioning rod 1 is adjusted to the appropriate position and inserted into the ground, so that the measuring positioning rod 1 is perpendicular to the ground, then the tape 5 is placed in the fixed slot 10 on the connecting rod 6, and then the clamping plate 8 is turned to rotate downward around the hinge 7 until the clamping block 9 enters the corresponding position, at this time, the sliding block 12 is in the upper position due to the action of the spring 13, and the clamping block 9 is clamped in the fixed slot 10, so that the tape 5 is limited in the inner wall of the fixed slot 10, at this time, the connecting rod 6 is in the middle of the positioning rod 1 and the measuring rod 22, then pull the measuring rod 22, the rotating shaft 20 rotates, when holding the measuring rod 22 moves to the corner, the connecting rod 6 is fixed at the corner of the land, then pull the measuring rod 22 again, install another connecting rod 6 when encountering the corner of the land again, then continue to pull the measuring rod 22, complete the measurement of multiple land side lengths at a time, and the middle of the clamping plate 8 is provided with a hole, when the tape 5 passes through, the numbers on the tape 5 can be directly observed from the outside of the connecting rod 6, which is convenient for workers to accurately record the length of each side of the land.

[0048] When the tape 5 is pulled, the rotating shaft 20 starts to rotate, and the rotating disc 203 connected therewith rotates synchronously, and the moving block 204 is tightly attached to the convex block 202 on the top of the fixed plate 201 due to the action of the spring 205, when the rotating disc 203 rotates, the moving block 204 in the square slot 206 will tend to displace relative to the convex block 202 with the movement of the rotating disc 203, although the convex block 202 is smoothly processed, but still has contact pressure with the moving block 204, the spring 205 releases downward pressure on the moving block 204, so that the friction between the moving block 204 and the convex block 202 is generated, which hinders the rotation of the rotating disc 203, and further increases the resistance of pulling the tape 5, when the tape 5 needs to be wound, the torque of the winding handle 21 overcomes the friction, drives the rotating shaft 20 and the rotating disc 203 to rotate reversely, realizes the winding of the tape 5, avoids the disorder and damage of the tape 5 caused by too fast or too slow release, thereby guarantees the stability of the tape 5 in the whole measuring process and the accuracy of the measurement.

[0049] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An area measuring device for land planning, comprising a connecting rod (6), characterized in that: The front side of the connecting rod (6) is provided with a fixing groove (10), the top of the front side of the connecting rod (6) is fixedly connected to a hinge (7), the bottom of the hinge (7) is rotatably connected to a clamping plate (8), the bottom of the clamping plate (8) is fixedly connected to a clamping block (9), the middle part of the front side of the connecting rod (6) is provided with a sliding groove (11), the inner wall of the sliding groove (11) is slidably connected to a slider (12), the bottom of the slider (12) is fixedly connected to a spring (13), the front side of the slider (12) is fixedly connected to a control block (16), the connecting rod (6) is provided with a fixing groove (10), the top of the hinge (7) is fixedly ... front side of the connecting rod (6) is fixedly connected to a spring (13), the front side of the slider (12) is fixedly connected to a control block (16), the connecting rod (6) is fixedly connected to a spring (13), the bottom of the slider (12) is fixedly connected to a control block (16), the connecting rod (6) is fixedly connected to a spring (13), the bottom of the slider (12) is fixedly connected to a control block (16), the connecting rod (6) is ) is fixedly connected to a limit cover (14) at the middle of the front side, a square hole (15) is opened in the middle of the limit cover (14), the outer wall of the control block (16) passes through the inner wall of the square hole (15), the inner wall of the fixing slot (10) is fixedly connected to a measuring tape (5), the right side of the measuring tape (5) is fixedly connected to a rotating shaft (20), the middle part of the outer wall of the rotating shaft (20) is fixedly connected to a winding cover (19), and a resistance mechanism (2) is provided on the top of the winding cover (19), and the resistance mechanism (2) is used to increase the resistance during the process of pulling the measuring tape (5).

2. The area measuring device for land planning according to claim 1, characterized in that: The resistance mechanism (2) comprises a fixed plate (201), the top of the fixed plate (201) is fixedly connected to a plurality of protrusions (202), the outer wall of the rotating shaft (20) is fixedly connected to a rotating disk (203), the bottom of the rotating disk (203) is provided with a plurality of square grooves (206), the top of the inner wall of the square groove (206) is fixedly connected to a second spring (205), the bottom of the second spring (205) is fixedly connected to a moving block (204), and the bottom of the moving block (204) is in contact with the top of the fixed plate (201).

3. The area measuring device for land planning according to claim 1, characterized in that: The top of the rotating shaft (20) is fixedly connected to a winding handle (21), and the bottom of the winding cover (19) is fixedly connected to a winding box (4).

4. The area measuring device for land planning according to claim 1, characterized in that: The left side of the measuring tape (5) is fixedly connected to a distance measuring rod (22), and the bottom of the distance measuring rod (22) is slidably connected to a ground pin (23).

5. The area measuring device for land planning according to claim 4, characterized in that: A plurality of threaded strips (26) are fixedly connected to the top outer wall of the ground pin (23), and a plurality of strip-shaped grooves (25) are formed on the top of the ground pin (23).

6. The area measuring device for land planning according to claim 5, characterized in that: The top of the ground pin (23) is threadedly connected to a threaded sleeve (24), and the top of the distance measuring rod (22) is fixedly connected to an indicator light (27).

7. The area measuring device for land planning according to claim 1, characterized in that: The top of the connecting rod (6) is fixedly connected to a reflective strip (18), and the bottom of the connecting rod (6) is fixedly connected to a supporting foot (17).

8. The area measuring device for land planning according to claim 3, characterized in that: The bottom of the winding box (4) is fixedly connected to a support plate (3), and the bottom of the support plate (3) is fixedly connected to a positioning rod (1).

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