Geographic surveying and mapping device for territorial space planning

Abstract

The utility model provides a geography surveying and mapping device for territorial space planning, which comprises a base, a surveying and mapping instrument, an adjusting column, a sliding seat, a limiting ring, a plurality of supporting legs and a plurality of connecting rods, the surveying and mapping instrument is arranged on the base, the adjusting column is arranged below the base, a plurality of vertical sliding grooves are formed in the peripheral side of the adjusting column, the sliding seat is slidably sleeved on the adjusting column, and a first limiting groove is formed in the outer side surface of the sliding seat; the top ends of the supporting legs are hinged to the sliding seat, second limiting grooves are formed in the outer sides of the supporting legs, one ends of the connecting rods are hinged to the supporting legs, the other ends of the connecting rods are hinged to the bottom ends of the adjusting columns, when the supporting legs are folded, the connecting rods are embedded into the vertical sliding grooves, and the supporting legs are flush with the outer side face of the sliding seat. The first limiting groove communicates with the second limiting groove, the limiting ring is slidably connected with the second limiting groove, and the technical problems that in the prior art, due to the fact that a binding rope or a cover body needs to be externally arranged to fix supporting legs of a tripod of the surveying and mapping device, the tripod storage and movement efficiency is low, and the equipment cost is increased are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to surveying and mapping equipment technical field especially relates to a geography surveying and mapping device for land space planning. BACKGROUND

[0002] Land space planning design is the arrangement of a certain regional land space development and protection in space and time, is the guide of national space development, the spatial blueprint of sustainable development, is the basic basis of various development and protection construction activities, and it is essential to survey and map the space when planning the space, understand the space size to facilitate planning and design, surveying and mapping instrument, simply speaking, it is the instrument and device of data collection, processing and output designed and manufactured for surveying and mapping operation, and it is necessary to deal with different terrains when surveying and mapping outdoors, and the placement and fixation of the device are more difficult.

[0003] When engineering personnel survey and map the land space, the surveying and mapping instrument is usually matched with a tripod to jointly form a surveying and mapping device that can ensure measurement accuracy and stability, however, the existing tripod needs to be equipped with a binding rope or a cover to fix the three legs at the other end to be integrated when it needs to be stored and moved, which not only is troublesome to operate, but also the binding rope or the cover may be lost in the work site, thereby causing the technical problems of low storage and moving efficiency of the tripod and increased equipment cost. UTILITY MODEL CONTENT

[0004] The purpose of the embodiment of the present application is to provide a geography surveying and mapping device for land space planning, which solves the technical problems of low storage and moving efficiency of the tripod and increased equipment cost caused by the need for a binding rope or a cover to fix the legs of the tripod of the surveying and mapping device.

[0005] To achieve the above purpose, the technical scheme adopted by the embodiment of the present application is as follows:

[0006] A geography surveying and mapping device for land space planning, comprising a base and a surveying and mapping instrument installed on the base, further comprising an adjusting column, a sliding seat, a limiting ring, a plurality of supporting legs and a plurality of connecting rods;

[0007] The adjusting column is fixedly arranged at one end of the base away from the surveying and mapping instrument, and a plurality of vertical sliding grooves are arranged on the outer circumferential side of the adjusting column;

[0008] A plurality of sliding blocks are arranged on the inner side of the sliding seat, the sliding seat is slidably sleeved on the top end of the adjusting column through the sliding blocks and the vertical sliding grooves, and a plurality of first limiting grooves are arranged on the outer side of the sliding seat, and the limiting ring is slidably sleeved on the outer side of the sliding seat through the first limiting grooves;

[0009] A plurality of support legs are arranged in a ring array on the outside of the adjusting column, the top end of the support leg is hinged to the sliding seat, and the side away from the adjusting column is provided with a second limiting groove;

[0010] Each connecting rod corresponds to a support leg, one end of the connecting rod is hinged to the end of the support leg away from the sliding seat, and the other end is hinged to the bottom end of the adjusting column;

[0011] When the support legs are retracted, the connecting rods are embedded in the vertical sliding grooves, the support legs fit the adjusting column, the outer side surface of the support leg is flush with the outer side surface of the sliding seat, each second limiting groove is in communication with a first limiting groove, and the limiting ring is in sliding connection with the second limiting groove.

[0012] In the geographical surveying and mapping device for land space planning, a plurality of first angle scales are arranged on the adjusting column.

[0013] In the geographical surveying and mapping device for land space planning, the sliding seat is provided with a plurality of first fixing through holes, a fixing groove is arranged in each vertical sliding groove, and a first fixing bolt is threadedly connected in the first fixing through hole; when the first fixing bolt is tightened, the first fixing bolt abuts against the groove bottom of the fixing groove, so as to fix the sliding seat.

[0014] In the geographical surveying and mapping device for land space planning, a rubber sleeve is arranged on one end of the first fixing bolt close to the fixing groove, the outer diameter of the rubber sleeve is defined as D, the groove width of the fixing groove is defined as d, and D>d is satisfied.

[0015] In the geographical surveying and mapping device for land space planning, the support leg comprises a sleeve rod, an elongated rod and a foot pad.

[0016] The top end of the sleeve rod is hinged to the sliding seat, the bottom end close to one side of the adjusting column is hinged to the connecting rod, an adjusting cavity is arranged in the sleeve rod, a second fixing through hole is formed in the cavity wall of the adjusting cavity, a second fixing bolt is threadedly connected in the second fixing through hole, the elongated rod is slidably sleeved in the adjusting cavity, the foot pad is hinged to one end of the elongated rod away from the sleeve rod, and the second fixing bolt abuts against the elongated rod when the second fixing bolt is tightened, so as to fix the elongated rod.

[0017] In the geographical surveying and mapping device for land space planning, a third fixing through hole is arranged on the foot pad, and a grip cone is threadedly connected in the third fixing through hole.

[0018] The bottom end of the adjusting column is provided with a receiving cavity and a receiving door, and the receiving door is connected with the adjusting column and used for closing the receiving cavity.

[0019] In the geographic surveying and mapping device for land space planning, the bottom of the base is provided with a rotating disc, the rotating disc is provided with a mounting frame, the surveying and mapping device is mounted in the mounting frame, both sides of the mounting frame are provided with limiting through holes, pull rods are slidably connected in the limiting through holes, one end of the pull rod located on the inner side of the mounting frame is provided with a clamping plate, at least two springs are arranged on the end of the clamping plate connected with the pull rod, one end of the spring is connected with the clamping plate, and the other end of the spring is connected with the side wall of the mounting frame.

[0020] In the geographic surveying and mapping device for land space planning, the top end of the base is provided with a plurality of second angle scales, and the rotating disc is provided with an angle pointer.

[0021] In the geographic surveying and mapping device for land space planning, the rotating disc is rotatably connected with the base through a rotating assembly, and the rotating assembly comprises a first rotating shaft, a second rotating shaft, a first bevel gear, a second bevel gear and an angle knob.

[0022] The first rotating shaft is arranged in the radial direction of the base and rotatably connected with the base, a first end of the first rotating shaft is located in the base, and a second end of the first rotating shaft is located on the outer side of the base, the first bevel gear is connected with the first end of the first rotating shaft, and the angle knob is fixedly connected with the second end of the first rotating shaft.

[0023] The second rotating shaft is arranged in the axial direction of the base and rotatably connected with the base, a first end of the second rotating shaft is located in the base, and a second end of the second rotating shaft is connected with the rotating disc, the second bevel gear is connected with the first end of the second rotating shaft and engaged with the first bevel gear.

[0024] Compared with the prior art, the embodiment of the present application has the following beneficial effects:

[0025] As can be seen from the above technical solution, the geographic surveying device for land spatial planning provided in this application embodiment is provided by setting a sliding seat that is slidably connected to an adjusting column, and setting support feet on the sliding seat. The other end of the support foot is connected to the bottom end of the adjusting column through a connecting rod, so that the sliding seat opens or closes during the sliding process. By setting a first limiting groove and a limiting ring on the outside of the sliding seat, the limiting ring is slidably connected to the first limiting groove, and a second limiting groove is set on the outside of the support foot. When the support foot is closed, each first limiting groove is connected to a second limiting groove, and the limiting ring slides from the first limiting groove to the second limiting groove to fix several support feet. This solves the technical problem in the prior art that the tripod legs of the surveying device need to be fixed by external binding ropes or covers, resulting in low tripod storage and movement efficiency and increased equipment costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings are not intended to be drawn to scale, and for clarity, not every component will be labeled in each drawing. The drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. Wherein:

[0027] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0028] Figure 2 for Figure 1 A magnified view of part A in the diagram.

[0029] Figure 3 This is a top view of the adjusting column in an embodiment of this application.

[0030] Figure 4 This is a bottom view of the adjustable column (without a storage door) in an embodiment of this application.

[0031] Figure 5 This is a top view of the mounting bracket in an embodiment of this application.

[0032] Figure 6 This is a schematic diagram of the rotating component in an embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Base, 2-Surveying instrument, 3-Adjusting column, 4-Sliding seat, 5-Limiting ring, 6-Supporting foot, 7-Connecting rod, 8-Vertical slide groove, 9-First limiting groove, 10-Second limiting groove, 11-First angle marking, 12-Fixing groove, 13-First fixing bolt, 14-Sleeve rod, 15-Extension rod, 16-Foot pad, 17-Second fixing bolt, 18-Grip cone, 19-Storage cavity, 20-Turntable, 21-Mounting bracket, 22-Pull rod, 23-Clamping plate, 24-Spring, 25-Second angle marking, 26-Angle pointer, 27-First rotating shaft, 28-Second rotating shaft, 29-First bevel gear, 30-Second bevel gear, 31-Angle knob, 32-Sliding block, 33-Sliding protrusion. Detailed Implementation

[0035] Currently, when existing surveying equipment tripods need to be stored and moved, in order to prevent the legs from falling apart during movement, external ropes or covers are required to fix the other end of the three legs together. This is not only cumbersome to operate, but also carries the risk of losing the ropes or covers at the work site. As a result, the tripod storage and movement are inefficient and the equipment costs are increased.

[0036] In view of this, this application provides a geographic surveying device for land spatial planning. The concept is to set a sliding seat that is slidably connected to an adjusting column, and set support feet on the sliding seat. The other end of the support foot is connected to the bottom end of the adjusting column through a connecting rod, so that the sliding seat opens or closes during the sliding process. By setting a first limiting groove and a limiting ring on the outside of the sliding seat, the limiting ring is slidably connected to the first limiting groove, and a second limiting groove is set on the outside of the support foot. When the support foot is closed, each first limiting groove is connected to a second limiting groove, and the limiting ring slides from the first limiting groove to the second limiting groove to fix several support feet. This solves the technical problem in the prior art that the tripod legs of the surveying device need to be fixed by external binding ropes or covers, resulting in low tripod storage and movement efficiency and increased equipment costs.

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] This application provides a geographic mapping device for land spatial planning, such as... Figures 1 to 6 As shown. A geographic surveying device for land spatial planning includes a base 1, a surveying instrument 2 mounted on the base 1, an adjusting column 3, a sliding seat 4, a limiting ring 5, several supporting feet 6, and several connecting rods 7.

[0043] Specifically, a turntable 20 is provided on the base 1. The turntable 20 is rotatably connected to the base 1 via a rotating assembly. The rotating assembly includes a first rotating shaft 27, a second rotating shaft 28, a first bevel gear 29, a second bevel gear 30, and an angle knob 31. The first rotating shaft 27 is arranged radially along the base 1 and rotatably connected to the base 1. Its first end is located inside the base 1, and its second end is located outside the base 1. The first bevel gear 29 is connected to the first end of the first rotating shaft 27. The angle knob 31 is fixedly connected to the second end of the first rotating shaft 27. The second rotating shaft 28 is arranged axially along the base 1 and rotatably connected to the base 1. Its first end is located inside the base 1. The second end is connected to the turntable 20. The second bevel gear 30 is connected to the first end of the second rotating shaft 28 and meshes with the first bevel gear 29. A mounting frame 21 is provided on the turntable 20. The surveying instrument 2 is installed in the mounting frame 21. Limiting through holes are provided on both sides of the mounting frame 21. A pull rod 22 is slidably connected in the limiting through holes. A clamping plate 23 is provided at one end of the pull rod 22 located inside the mounting frame 21. At least two springs 24 are provided at one end of the clamping plate 23 connected to the pull rod 22. One end of the spring 24 is connected to the clamping plate 23, and the other end is connected to the side wall of the mounting frame 21. The two clamping plates 23 are used to clamp the surveying instrument 2 installed in the mounting frame 21.

[0044] In use, the surveyor pulls the pull rods 22 on both sides of the mounting bracket 21 outwards to install the surveying instrument 2 inside the mounting bracket 21. At this time, the clamping plate 23 compresses the spring 24. After the surveying instrument 2 is placed, the pull rods 22 are released, the spring 24 returns to its original position, and the clamping plate 23 moves towards the center of the mounting plate to clamp the surveying instrument 2. When it is necessary to adjust the measuring water level of the surveying instrument 2 horizontally, the surveyor rotates the angle knob 31, which in turn moves through the first rotating shaft 27 and the first bevel gear. 29. The second bevel gear 30 and the second rotating shaft 28 cause the turntable 20 to rotate, thereby realizing the rotation of the surveying instrument 2. Based on the principle of "three points determine a plane", in this embodiment, there are three springs 24, which are distributed in a triangle. Preferably, a rubber pad can be set on the side of the clamping plate 23 facing the surveying instrument 2. This can not only effectively prevent the clamping plate 23 from damaging the surveying instrument 2, but also further increase the friction between the clamping plate 23 and the surveying instrument 2, thereby improving the clamping stability.

[0045] The adjusting column 3 is fixedly disposed at the center of the end of the base 1 away from the surveying instrument 2. A plurality of vertical grooves 8 are evenly spaced on its outer periphery. A plurality of sliding blocks 32 are disposed on the inner side of the sliding seat 4. The sliding seat 4 is slidably fitted onto the top of the adjusting column 3 via the sliding blocks 32 and the vertical grooves 8. A plurality of first limiting grooves 9 are disposed on its outer side. The sliding seat 4 is provided with a plurality of first fixing through holes. Each vertical groove 8 is provided with a fixing groove 12. A first fixing bolt 13 is threaded into the first fixing through hole. When the first fixing bolt 13 is tightened, it abuts against the bottom of the fixing groove 12, thereby fixing the sliding seat 4 to a designated position on the adjusting column 3. The limiting ring 5 is slidably fitted onto the outside of the sliding seat 4 via the first limiting groove 9. It should be noted that, to prevent the limiting ring 5 from rotating arbitrarily, the limiting ring 5... The adjustment column 3 is provided with a sliding protrusion 33, which slides in conjunction with the first limiting groove 9. A plurality of supporting feet 6 are arranged in a circular array on the outside of the adjustment column 3. The top of the supporting foot 6 is hinged to the sliding seat 4. A second limiting groove 10 is provided on the side away from the adjustment column 3. Each connecting rod 7 corresponds to a supporting foot 6. One end of the connecting rod 7 is hinged to the end of the supporting foot 6 away from the sliding seat 4, and the other end is hinged to the bottom end of the adjustment column 3. When the supporting foot 6 is retracted, the connecting rod 7 is embedded in the vertical sliding groove 8, and the supporting foot 6 is in contact with the adjustment column 3. The outer surface of the supporting foot 6 is flush with the outer surface of the sliding seat 4. Each second limiting groove 10 communicates with a first limiting groove 9. The limiting ring 5 is slidably connected to the second limiting groove 10, that is, the sliding protrusion 33 of the limiting ring 5 slides in conjunction with the second limiting groove 10.

[0046] Specifically, the support foot 6 includes a sleeve rod 14, an extension rod 15, a pad 16, and a gripping cone 18. The top end of the sleeve rod 14 is hinged to the sliding seat 4, and its bottom end, near the adjusting column 3, is hinged to the connecting rod 7. The second limiting groove is provided on the side of the sleeve rod 14 away from the adjusting column 3. An adjusting cavity is provided inside the sleeve rod 14, and a second fixing through hole is provided on the cavity wall of the adjusting cavity. A second fixing bolt 17 is threaded into the second fixing through hole. The extension rod 15 is slidably sleeved in the adjusting cavity. The pad 16 is hinged to the end of the extension rod 15 away from the sleeve rod 14. A third fixing through hole is provided on the pad 16, and the gripping cone 18 is threaded into the third fixing through hole. When the second fixing bolt 17 is tightened, the second fixing bolt 17 abuts against the extension rod 15 to fix the extension rod 15.

[0047] The sliding seat 4 slides up and down on the adjusting column 3 to open and close the plurality of support feet 6. When the support feet 6 are closed, the limiting ring 5 slides from the first limiting groove 9 to the second limiting groove 10 to fix the plurality of support feet 6 hinged to the sliding seat 4, preventing them from falling off during storage and movement. The sliding seat 4 is located at the top of the adjusting column 3 and fits against the base 1. The sleeve rod 14 fits against the adjusting column 3, with the end of the sleeve rod 14 away from the sliding seat 4 flush with the end of the adjusting column 3 away from the base 1. By setting the pad foot 16 to be hinged to the extension rod 15, the support feet 6 can fit against the ground with a certain slope. When the embodiment of this application is supported on a hard ground, the gripper can be... The ground cone 18 is disassembled and supported on the ground by the pad 16. When the embodiment of this application is supported on soft ground such as soil, the ground cone 18 can be installed on the pad 16 and inserted into the soil to improve the stability of the embodiment of this application. It should be noted that in order to prevent the limiting ring 5 from falling off the sliding seat 4 or the supporting feet 6, the first limiting groove 9 is not connected to the top end face of the sliding seat 4, but only to the end of the sliding seat 4 facing the supporting foot 6. The second limiting groove 10 is only connected to the end of the sleeve rod 14 facing the sliding seat 4, and is not connected to the bottom end face of the outer side of the sleeve rod 14. That is, the limiting ring 5 can only slide on the first limiting groove 9 and the second limiting groove 10 and will not fall off.

[0048] In some preferred embodiments, the adjusting column 3 is provided with a plurality of first angle markings 11.

[0049] When the bottom end of the sliding seat 4 slides to coincide with a certain first angle scale line 11, the value of the first angle scale line 11 reflects the size of the angle between the current support foot 6 and the adjustment column 3.

[0050] In some preferred embodiments, a rubber sleeve is fitted on one end of the first fixing bolt 13 near the fixing groove 12. The outer diameter of the rubber sleeve is defined as D, and the groove width of the fixing groove 12 is defined as d, then D > d.

[0051] The stability of the sliding seat 4 is improved when the first fixing bolt 13 is tightened by fitting the rubber sleeve at one end of the first fixing bolt 13 near the fixing groove 12, and the outer diameter D of the rubber sleeve is greater than the width d of the fixing groove 12.

[0052] In some preferred embodiments, the bottom end of the adjusting column 3 is provided with a storage cavity 19 and a storage door, the storage door being connected to the adjusting column 3 and used to close the storage cavity 19.

[0053] The storage door and the adjustment column 3 can be detachably connected by two snap fasteners. Alternatively, the storage door and the adjustment column 3 can be hinged at one end and connected by snap fasteners at the other end. Or, the storage door and the adjustment column 3 can be detachably connected by fitting. The storage cavity 19 is used to store the gripping cone 18. In order to reduce the space required by the storage cavity 19 and facilitate the storage of the gripping cone 18, the gripping cone 18 can be set as a hollow structure, and the diameter of the gripping cone 18 decreases sequentially, so that the gripping cone 18 with a smaller diameter can be fitted into the gripping cone 18 with a larger diameter.

[0054] In some preferred embodiments, the top of the base 1 is provided with a plurality of second angle markings 25, and the turntable 20 is provided with an angle pointer 26.

[0055] By setting the second angle scribe line 25 and the angle pointer 26, the tester can know the rotation angle of the surveying instrument 2 in real time when rotating the surveying instrument 2.

[0056] In summary, the geographic surveying device for land spatial planning provided in this application embodiment uses a sliding seat slidably connected to an adjusting column, with support feet mounted on the sliding seat. The other end of the support foot is connected to the bottom of the adjusting column via a connecting rod, allowing the sliding seat to open or retract during sliding. A first limiting groove and a limiting ring are provided on the outside of the sliding seat, with the limiting ring slidably connected to the first limiting groove. A second limiting groove is provided on the outside of the support foot. When the support foot retracts, each first limiting groove communicates with a second limiting groove, and the limiting ring slides from the first limiting groove to the second limiting groove to fix several support feet. This solves the technical problem in the prior art where the tripod legs of the surveying device need to be fixed with external ropes or covers, resulting in low tripod storage and movement efficiency and increased equipment costs.

[0057] The above provides a detailed description of a geographic surveying and mapping device for land spatial planning provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A geographic mapping device for land spatial planning, comprising a base and a mapping instrument mounted on the base, characterized in that, It also includes an adjusting column, a sliding seat, a limit ring, several support feet, and several connecting rods; The adjusting column is fixedly installed at one end of the base away from the surveying instrument, and several vertical sliding grooves are provided on its outer periphery; The inner side of the sliding seat is provided with a plurality of sliding blocks. The sliding seat is slidably sleeved on the top of the adjusting column through the sliding blocks and the vertical sliding groove. The outer side of the sliding seat is provided with a plurality of first limiting grooves. The limiting ring is slidably sleeved on the outer side of the sliding seat through the first limiting grooves. Several of the support feet are arranged in a circular array on the outside of the adjusting column. The top of each support foot is hinged to the sliding seat, and a second limiting groove is provided on the side away from the adjusting column. Each of the connecting rods corresponds to a supporting leg, with one end of the connecting rod hinged to the end of the supporting leg away from the sliding seat, and the other end hinged to the bottom end of the adjusting column. When the support foot is retracted, the connecting rod is embedded in the vertical sliding groove, the support foot is in contact with the adjusting column, the outer side of the support foot is flush with the outer side of the sliding seat, each second limiting groove is connected to a first limiting groove, and the limiting ring is slidably connected to the second limiting groove.

2. The geographic mapping device for land spatial planning as described in claim 1, characterized in that, The adjusting column is provided with several first angle markings.

3. The geographic mapping device for land spatial planning as described in claim 1, characterized in that, The sliding seat is provided with a plurality of first fixing through holes, and each of the vertical sliding grooves is provided with a fixing groove. A first fixing bolt is threaded into the first fixing through hole. When the first fixing bolt is tightened, the first fixing bolt abuts against the bottom of the fixing groove to fix the sliding seat.

4. The geographic mapping device for land spatial planning as described in claim 3, characterized in that, A rubber sleeve is fitted on one end of the first fixing bolt near the fixing groove. The outer diameter of the rubber sleeve is defined as D, and the groove width of the fixing groove is defined as d. Then, D > d is satisfied.

5. A geographic mapping device for land spatial planning as described in claim 1, characterized in that, The support leg includes a sleeve, an extension rod, and a pad; The top end of the sleeve is hinged to the sliding seat, and the bottom end near the adjusting column is hinged to the connecting rod. An adjusting cavity is provided inside the sleeve, and a second fixing through hole is provided on the cavity wall of the adjusting cavity. A second fixing bolt is threaded into the second fixing through hole. The extension rod is slidably sleeved in the adjusting cavity. The pad is hinged to the end of the extension rod away from the sleeve. When the second fixing bolt is tightened, the second fixing bolt abuts against the extension rod to fix the extension rod.

6. A geographic mapping device for land spatial planning as described in claim 5, characterized in that, The foot is provided with a third fixing through hole, and a gripping cone is connected to the internal thread of the third fixing through hole.

7. A geographic mapping device for land spatial planning as described in claim 6, characterized in that, The bottom end of the adjusting column is provided with a storage cavity and a storage door. The storage door is connected to the adjusting column and is used to close the storage cavity.

8. A geographic mapping device for land spatial planning as described in claim 1, characterized in that, A turntable is rotatably connected to the base, and a mounting frame is provided on the turntable. The surveying instrument is installed in the mounting frame. Limiting through holes are provided on both sides of the mounting frame. A pull rod is slidably connected in the limiting through holes. A clamping plate is provided at one end of the pull rod located inside the mounting frame. At least two springs are provided at the end of the clamping plate connected to the pull rod. One end of the spring is connected to the clamping plate, and the other end is connected to the side wall of the mounting frame. The two clamping plates are used to clamp the surveying instrument installed in the mounting frame.

9. A geographic mapping device for land spatial planning as described in claim 8, characterized in that, The top of the base is provided with several second angle markings, and the turntable is provided with an angle pointer.

10. A geographic mapping device for land spatial planning as described in claim 8, characterized in that, The turntable is rotatably connected to the base via a rotating assembly, which includes a first rotating shaft, a second rotating shaft, a first bevel gear, a second bevel gear, and an angle knob. The first rotating shaft is arranged radially along the base and rotatably connected to the base. Its first end is located inside the base and its second end is located outside the base. The first bevel gear is connected to the first end of the first rotating shaft, and the angle knob is fixedly connected to the second end of the first rotating shaft. The second rotating shaft is arranged along the axial direction of the base and is rotatably connected to the base. Its first end is located inside the base, and its second end is connected to the turntable. The second bevel gear is connected to the first end of the second rotating shaft and meshes with the first bevel gear.

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