Geological surveying and mapping instrument lifting frame

Abstract

The invention relates to the technical field of surveying and mapping instruments, and discloses a geological surveying and mapping instrument lifting frame. The lifting frames are connected to the bottom of the mounting base, the multiple sets of lifting frames are symmetrically arranged around the center of the mounting base, each set of lifting frame comprises a connecting rod, a telescopic rod and a supporting part, one end of each connecting rod is rotationally connected with the mounting base, and the other end of each connecting rod is connected with the corresponding telescopic rod; the supporting part is rotationally connected to the end, away from the connecting rod, of the telescopic rod. The supporting part comprises a rotating seat and a supporting leg, the rotating seat is rotationally connected with the telescopic rod, the supporting leg is connected to the rotating seat, the rotating seat rotates to drive the supporting leg to rotate and be fixed, and the supporting leg can rotate to be parallel to the length direction of the telescopic rod; or the sides, facing the ground, of the supporting legs can rotate to the positions parallel to the ground. The terrain adaptability of the lifting frame is improved, and stable supporting can be achieved in various terrain environments.

Description

Technical Field

[0001] The invention relates to the technical field of surveying and mapping instruments, and in particular to a lifting frame for geological surveying and mapping instruments. Background Art

[0002] Geological surveying instruments are instruments and devices designed and manufactured for surveying operations, such as data collection, processing, and output. They are instruments for various types of orientation, distance, angle, height, mapping, and photogrammetry required for surveying work during the planning, design, construction, and management stages of engineering construction. During the use of the surveying instrument, it needs to be supported and installed by a bracket.

[0003] The existing surveying and mapping instruments are mostly tripods, which usually include three legs with pointed structures at the bottom. The pointed structures are inserted into the ground to provide stable support for the surveying and mapping instruments. Some tripods can also achieve height adjustment by expanding or contracting the three legs or by extending and retracting the legs individually.

[0004] However, in actual surveying, the existing tripods may achieve different support effects under different terrain conditions. For example, in areas with hard and flat ground, the tripod can achieve stable support; in areas with soft soil, the surveying process may gradually penetrate into the ground, thereby breaking the horizontal state of the surveying instrument and causing inaccurate measurement results; in areas with uneven terrain such as slopes and potholes, the tripod support has poor stability. Therefore, the existing tripods have low terrain adaptability, which limits their application in different terrain environments. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a geological surveying and mapping instrument lifting frame.

[0006] The present invention provides a geological surveying and mapping instrument lifting frame, comprising: Mounting seat; A lifting frame connected to the bottom of the mounting base, wherein the lifting frames are symmetrically arranged in multiple groups around the center of the mounting base, and each group of the lifting frames comprises a connecting rod, a telescopic rod and a supporting part, wherein one end of the connecting rod is rotatably connected to the mounting base, and the other end is connected to the telescopic rod, and the supporting part is rotatably connected to one end of the telescopic rod away from the connecting rod; The support portion includes a rotating seat and a support leg, the rotating seat is rotatably connected to the telescopic rod, the support leg is connected to the rotating seat, the rotation of the rotating seat is used to drive the support leg to rotate and fix, the support leg can be rotated to be parallel to the length direction of the telescopic rod, or the side of the support leg facing the ground can be rotated to a position parallel to the ground.

[0007] Optionally, the support leg is detachably connected to the rotating seat, and an anti-slip pad is provided on the side of the support leg facing the ground, and a plurality of anti-slip teeth are arranged at intervals on the opposite side. By removing the support leg and changing the connection direction with the rotating seat, the side of the support leg provided with the anti-slip teeth can face the ground.

[0008] Optionally, a fine-tuning component is provided between the telescopic rod and the connecting rod, and the fine-tuning component includes: A rotating gear is arranged inside the telescopic rod and is rotatably connected to the telescopic rod, the outer side of the rotating gear is provided with external teeth, the connecting rod is provided with a rack meshing with the external teeth, and the inner side of the rotating gear is provided with internal teeth; A driving gear is fixedly connected to a rotating rod, and the driving gear is movably connected to the telescopic rod through the rotating rod. The driving gear can be engaged or disengaged with the internal teeth through the rotating rod.

[0009] Optionally, the fine-tuning component further includes: A housing is fixedly connected to the telescopic rod, and the rotating rod is rotatably connected to the housing; A fixing plate, fixed on the rotating rod; The spring is sleeved on the rotating rod and is located between the fixing sheet and the bottom of the shell.

[0010] Optionally, edges of the inner teeth and the teeth on the driving gear that are close to each other are both processed with rounded corners.

[0011] Optionally, also include: A positioning rod, fixedly connected to the center of the bottom of the mounting seat; A sliding sleeve is arranged on the positioning rod, a connecting rod is arranged between the connecting rod and the sliding sleeve, and two ends of the connecting rod are respectively rotatably connected to the sliding sleeve and the connecting rod.

[0012] Optionally, an insertion rod is provided at the bottom end of the positioning rod, and the insertion rod is movably inserted inside the positioning rod.

[0013] Optionally, the lower end of the insertion rod is a pointed tip, and a limiting disk is fixed to a side of the insertion rod close to the pointed tip.

[0014] Optionally, also include: The rotating rod is arranged between the rotating seat and the telescopic rod, and the rotating rod and the telescopic rod, and the rotating rod and the rotating seat are all rotatably connected.

[0015] Optionally, the telescopic rod is slidably connected to the connecting rod, and a positioning bolt for fixing the telescopic rod is provided on the telescopic rod.

[0016] The technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art: A geological surveying instrument lifting frame provided in an embodiment of the present invention includes a mounting seat; a lifting frame connected to the bottom of the mounting seat, and a plurality of lifting frames are symmetrically arranged around the center of the mounting seat, each group of lifting frames includes a connecting rod, a telescopic rod and a supporting part, one end of the connecting rod is rotatably connected to the mounting seat, and the other end is connected to the telescopic rod, and the supporting part is rotatably connected to an end of the telescopic rod away from the connecting rod; the supporting part includes a rotating seat and a support leg, the rotating seat is rotatably connected to the telescopic rod, the support leg is connected to the rotating seat, the rotation of the rotating seat is used to drive the support leg to rotate and fix, the support leg can be rotated to be parallel to the length direction of the telescopic rod, or the side of the support leg facing the ground can be rotated to a position parallel to the ground. When the ground is hard and flat, the support leg is rotated to a position parallel to the length of the telescopic rod and the position of the support leg is fixed, so that the mounting base can be stably supported; when the ground is soft, the side of the support leg is rotated to a position parallel to the ground, and the side of the support leg is supported on the ground, which can effectively avoid the problem of the support leg sinking into the ground and causing inaccurate measurement results during the surveying process; when in an inclined or low-lying area, the height of each set of lifting frames is adjusted to keep the mounting base level, and the support leg is rotated to an appropriate position according to the ground conditions to achieve stable support for the mounting base. This improves the terrain adaptability of the lifting frame and can achieve stable support in a variety of terrain environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a geological surveying and mapping instrument lifting frame provided in an embodiment of the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0019] Figure 3 A partial structural sectional view of a geological surveying and mapping instrument lifting frame provided in an embodiment of the present invention.

[0020] Figure 4 for Figure 3 Enlarged view of part B in the middle.

[0021] Description of reference numerals: 1. Mounting seat; 2. Lifting frame; 21. Connecting rod; 211. Rack; 22. Telescopic rod; 221. Accommodating chamber; 222. Through hole; 23. Rotating rod; 24. Support part; 241. Rotating seat; 242. Support foot; 243. Anti-skid pad; 244. Anti-skid tooth; 25. Fine-tuning assembly; 251. Rotating gear; 252. Internal gear; 253. Driving gear; 254. Rotating rod; 255. Housing; 256. Fixed plate; 257. Spring; 3. Positioning rod; 31. Sliding sleeve; 32. Inserting rod; 33. Limiting plate; 4. Connecting rod. DETAILED DESCRIPTION

[0022] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the technical solutions of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] The present invention is described below by several specific embodiments. In order to keep the following description of the embodiments of the present invention clear and concise, the detailed description of known functions and known components may be omitted. When any component of the embodiments of the present invention appears in more than one accompanying drawings, the component may be represented by the same reference numeral in each of the accompanying drawings.

[0025] like Figure 1 As shown, an embodiment of the present invention provides a geological surveying and mapping instrument lifting frame, comprising: Mounting seat 1; The lifting frame 2 is connected to the bottom of the mounting base 1. The lifting frame 2 is symmetrically arranged in multiple groups around the center of the mounting base 1. Each group of the lifting frame 2 includes a connecting rod 21, a telescopic rod 22 and a support portion 24. One end of the connecting rod 21 is rotatably connected to the mounting base 1, and the other end is connected to the telescopic rod 22. The support portion 24 is rotatably connected to the end of the telescopic rod 22 away from the connecting rod 21. The support portion 24 includes a rotating seat 241 and a support leg 242. The rotating seat 241 is rotatably connected to the telescopic rod 22, and the support leg 242 is connected to the rotating seat 241. The rotation of the rotating seat 241 is used to drive the support leg 242 to rotate and fix. The support leg 242 can be rotated to be parallel to the length direction of the telescopic rod 22, or the side of the support leg 242 facing the ground can be rotated to a position parallel to the ground.

[0026] Specifically, the mounting seat 1 is used to mount and fix the surveying and mapping instrument. The mounting seat 1 may be a round plate or a square plate. The mounting seat 1 may be provided with a mounting structure adapted to the surveying and mapping instrument to facilitate the quick connection between the mounting seat 1 and the surveying and mapping instrument. For example, the connection may be achieved by means of a clamping connection, a bolt connection, etc., which is not particularly limited in the present invention.

[0027] The lifting frame 2 is connected to the bottom of the mounting seat 1. The lifting frame 2 is symmetrically arranged in multiple groups around the center of the mounting seat 1. Each group of lifting frames 2 includes a connecting rod 21, a telescopic rod 22 and a support portion 24. For example, the mounting seat 1 is a circular plate structure, and three groups of lifting frames 2 are symmetrically arranged around the center of the mounting seat 1. The three groups of lifting frames 2 form a tripod structure to support the mounting seat 1. The connecting rod 21 can be composed of two long strips, and one end of the connecting rod 21 is rotatably connected to the bottom of the mounting seat 1; the telescopic rod 22 is slidably arranged between the two long strips, and the telescopic rod 22 can slide along the length direction of the connecting rod 21. A sliding sleeve is arranged at one end of the telescopic rod 22 close to the mounting seat 1. The sliding sleeve is fixed to the telescopic rod 22 and is sleeved on the connecting rod 21, so as to limit the telescopic rod 22 to slide only along the length direction of the connecting rod 21; the support portion 24 is rotatably connected to one end of the telescopic rod 22 away from the connecting rod 21. The support portion 24 can be a structure with a sharp angle at the end, so as to facilitate fixing the lifting frame 2 to the ground.

[0028] Among them, the support part 24 includes a rotating seat 241 and a support leg 242. The rotating seat 241 is rotatably connected to the telescopic rod 22, and the support is connected to the rotating seat 241. The end of the support leg 242 is a pointed structure. When the rotating seat 241 rotates, the support leg 242 can be driven to rotate, and after rotating to an appropriate position, it can be fixed so that the rotating seat 241 no longer rotates. The support leg 242 can be rotated to a position parallel to the length direction of the telescopic rod 22, or the side of the support leg 242 facing the ground can be rotated to a position parallel to the ground. A fastening bolt can be set on the rotating shaft of the rotating seat 241, so that the rotating seat 241 is fixed after the rotating seat 241 is rotated to an appropriate position, so that the rotating seat 241 no longer rotates. Of course, the method for fixing the position of the rotating seat 241 can also be a buckle fixation, a pin fixation, etc., and the present invention does not make special restrictions on this.

[0029] When in an area with hard and flat ground, the support leg 242 is rotated to a position parallel to the length direction of the telescopic rod 22, and the position of the support leg 242 is fixed, thereby achieving stable support for the mounting base 1; when in an area with soft ground, the support leg 242 is rotated to a position parallel to the ground on one side facing the ground, and the side of the support leg 242 is supported on the ground, which can effectively avoid the problem of inaccurate measurement results caused by the support leg 242 sinking into the ground during the surveying process; when in an inclined or low-lying area, the mounting base 1 is kept horizontal by adjusting the height of each set of lifting frames 2, and the support leg 242 is rotated to an appropriate position according to the ground conditions to achieve stable support for the mounting base 1.

[0030] Exemplarily, the telescopic rod 22 is slidably connected to the connecting rod 21, and a positioning bolt for fixing the telescopic rod 22 is provided on the telescopic rod 22. After the telescopic rod 22 is slid to a proper position, the positioning bolt is screwed to fix the telescopic rod 22 and the connecting rod 21.

[0031] In the above embodiment, when the support leg 242 is supported by the side facing the ground, if the friction between the ground and the side of the support leg 242 is insufficient, the support leg 242 may slide, affecting the stability of the lifting frame 2.

[0032] To this end, an embodiment of the present invention provides an improved approach.

[0033] like Figure 1 , Figure 2 As shown, the support leg 242 is detachably connected to the rotating seat 241, and an anti-slip pad 243 is provided on the side of the support leg 242 facing the ground, and a plurality of anti-slip teeth 244 are arranged at intervals on the opposite side. By removing the support leg 242 and changing the connection direction with the rotating seat 241, the side of the support leg 242 provided with the anti-slip teeth 244 can be directed toward the ground.

[0034] Specifically, the anti-skid pad 243 can be a rubber pad, a cloth pad, etc. The anti-skid pad 243 is arranged on the side of the support leg 242 facing the ground. The support leg 242 is detachably connected to the rotating seat 241, so that the installation direction of the support leg 242 can be changed. The side of the support leg 242 provided with the anti-skid pad 243 can be installed facing the ground or away from the ground. When the side of the support leg 242 is used for support, the anti-skid pad 243 can increase the friction between the support leg 242 and the ground, effectively preventing the support leg 242 from sliding during the support process, thereby improving the stability of the lifting frame 2; a plurality of anti-skid teeth 244 are arranged at intervals on the side opposite to the anti-skid pad 243 of the support leg 242. When the anti-skid effect of the anti-skid pad 243 is not good, the support leg 242 can be removed and the side provided with the anti-skid teeth 244 is installed facing the ground. The anti-skid teeth 244 can be inserted into the ground, which can increase the friction between the support leg 242 and the ground and prevent the support leg 242 from sinking into the ground. Among them, under different terrain conditions, the anti-skid pad 243 or the anti-skid teeth 244 can be selected according to actual needs. For example, in a muddy area, the anti-skid pad 243 can be used, and in an area with soft soil, the anti-skid teeth 244 can be used.

[0035] In the above embodiment, the height of the lifting frame 2 can only be adjusted by sliding the telescopic rod 22. When fine adjustment is required, it is inconvenient to adjust and errors are likely to occur.

[0036] To this end, an embodiment of the present invention provides an improved approach.

[0037] like Figure 1 , Figure 3 , Figure 4 As shown, a fine-tuning assembly 25 is provided between the telescopic rod 22 and the connecting rod 21, and the fine-tuning assembly 25 includes: A rotating gear 251 is disposed inside the telescopic rod 22 and is rotatably connected to the telescopic rod 22. An outer side of the rotating gear 251 is provided with external teeth. A rack 211 meshing with the external teeth is provided on the connecting rod 21. An inner side of the rotating gear 251 is provided with internal teeth 252. The driving gear 253 is fixedly connected with a rotating rod 254 . The driving gear 253 is movably connected to the telescopic rod 22 through the rotating rod 254 . The driving gear 253 can be engaged or disengaged with the inner teeth 252 through the rotating rod 254 .

[0038] Specifically, a housing chamber 221 is provided inside the telescopic rod 22, a rotating gear 251 is rotatably connected in the housing chamber 221, an outer side of the rotating gear 251 is provided with external teeth, and a rack 211 meshing with the external teeth is provided on the connecting rod 21. For example, a fixed rod is fixed at the bottom of the housing chamber 221, a bearing is connected to the fixed rod, and the rotating gear 251 is fixedly connected to the outer ring of the bearing. When the telescopic rod 22 slides along the connecting rod 21, the rotating gear 251 meshes with the rack 211 and idling occurs.

[0039] Furthermore, an inner tooth 252 is provided inside the rotating gear 251 , and the driving gear 253 is movably connected to the telescopic rod 22 via a rotating rod 254 , and the driving gear 253 can be meshed or disengaged with the inner tooth 252 of the rotating gear 251 via the rotating rod 254 . Exemplarily, a through hole 222 communicating with the accommodating chamber 221 is provided on the telescopic rod 22, the driving gear 253 is located in the through hole 222, the rotating rod 254 is rotatably connected to the telescopic rod 22 and can drive the driving gear 253 to slide along the axis of the through hole 222 toward or away from the accommodating chamber 221; when it is necessary to adjust the height of the lifting frame 2 over a large range, the driving gear 253 is located outside the accommodating chamber 221, the driving gear 253 is not meshed with the inner teeth 252 of the rotating gear 251, and the sliding telescopic rod 22 can adjust the height of the lifting frame 2; when it is necessary to fine-tune the height of the lifting frame 2, the rotating rod 254 is pressed to make the driving gear 253 mesh with the inner teeth 252, and when the rotating rod 254 is rotated, the driving gear 253 can drive the rotating gear 251 to rotate, and the rotating gear 251 can mesh with the rack 211 on the connecting rod 21, thereby driving the telescopic rod 22 and the connecting rod 21 to slide relative to each other, thereby achieving fine-tuning of the height of the lifting frame 2.

[0040] Furthermore, the fine-tuning component 25 also includes: The housing 255 is fixedly connected to the telescopic rod 22, and the rotating rod 254 is rotatably connected to the housing 255; A fixing plate 256 fixed on the rotating rod 254; The spring 257 is sleeved on the rotating rod 254 and is located between the fixing plate 256 and the bottom of the housing 255 .

[0041] Specifically, the shell 255 is fixed on the telescopic rod 22. The shell 255 is a shell structure with an open top. A hole is provided at the bottom of the shell 255 for the rotating rod 254 to pass through, and the rotating rod 254 is rotatably connected to the bottom of the shell 255. The fixing plate 256 is located in the opening of the shell 255. The rotating rod 254 passes through the fixing plate 256 and is fixedly connected to the fixing plate 256. The spring 257 is sleeved on the rotating rod 254 and is located between the fixing plate 256 and the bottom of the shell 255. When fine adjustment is required, the rotating rod 254 is pressed in the direction close to the accommodating chamber 221. The rotating rod 254 drives the driving gear 253 to move into the accommodating chamber 221 and mesh with the inner teeth 252, and at the same time drives the fixing plate 256 to move toward the bottom of the outer shell 255. When the fixing plate 256 moves, the spring 257 is compressed; the rotating rod 254 is rotated to drive the rotating gear 251 to rotate, thereby fine-tuning the height of the lifting frame 2; after the adjustment is completed, the rotating rod 254 is released, and under the action of the spring 257, the rotating gear is driven to disengage from the inner teeth 252.

[0042] Furthermore, the edges of the teeth on the driving gear 253 that are close to each other are all rounded. When the rotating rod 254 is pushed to make the driving gear 253 mesh with the inner teeth 252, it is easy for the driving gear 253 to mesh with the inner teeth 252, which is conducive to improving the adjustment accuracy.

[0043] In one embodiment of the present invention, Figure 1 , Figure 3 As shown, the geological surveying instrument lifting frame also includes a positioning rod 3 and a sliding sleeve 31. The positioning rod 3 is fixedly connected to the bottom center of the mounting seat 1; the sliding sleeve 31 is arranged on the positioning rod 3, and a connecting rod 4 is arranged between the connecting rod 21 and the sliding sleeve 31, and the two ends of the connecting rod 4 are respectively rotatably connected to the sliding sleeve 31 and the connecting rod 21.

[0044] Specifically, the positioning rod 3 is fixed at the bottom center of the mounting base 1, and the sliding sleeve 31 is arranged on the positioning rod 3. When the connecting rod 21 rotates and unfolds, the sliding sleeve 31 slides, and multiple connecting rods 21 are connected to the sliding sleeve 31 through the connecting rod 4, so that multiple groups of connecting rods 21 can be kept rotating at the same angle at the same time, which is beneficial to improve the stability of the connecting rods 21.

[0045] At the same time, an insertion rod 32 is provided at the bottom end of the positioning rod 3, and the insertion rod 32 is movably inserted inside the positioning rod 3. When supporting, the insertion rod 32 is first slid out of the positioning rod 3 and fixed, and after selecting a suitable surveying position, the insertion rod 32 is inserted into the ground for preliminary positioning, and then the lifting frame 2 is rotated for support, which is convenient for operation.

[0046] Furthermore, the lower end of the insertion rod 32 is a pointed tip, which is convenient for insertion into the ground for positioning. A limiting plate 33 is fixed on one side of the insertion rod 32 close to the pointed tip to prevent the insertion rod 32 from penetrating into the ground.

[0047] In an exemplary embodiment of the present invention, Figure 1 , Figure 3 As shown, the geological mapping instrument lifting frame 2 also includes a rotating rod 23. The rotating rod 23 is arranged between the rotating seat 241 and the telescopic rod 22, and the rotating rod 23 and the telescopic rod 22, and the rotating rod 23 and the rotating seat 241 are all rotatably connected. The rotating rod 23 can be rotated to a proper angle and then fixed. In an area with an inclined terrain or obstacles on the ground, it is not convenient to fully unfold the lifting frame 2, so the rotating rod 23 can be rotated to a proper position, so that the support legs 242 can achieve stable support, further improving the terrain adaptability of the lifting frame 2.

[0048] The above inventions are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A geological surveying and mapping instrument lifting frame, characterized in that: include: Mounting seat (1); A lifting frame (2) is connected to the bottom of the mounting seat (1); the lifting frame (2) is symmetrically arranged in a plurality of groups around the center of the mounting seat (1); each group of the lifting frame (2) comprises a connecting rod (21), a telescopic rod (22) and a supporting portion (24); one end of the connecting rod (21) is rotatably connected to the mounting seat (1), and the other end is connected to the telescopic rod (22); the supporting portion (24) is rotatably connected to an end of the telescopic rod (22) away from the connecting rod (21); The support portion (24) comprises a rotating seat (241) and a support leg (242); the rotating seat (241) is rotatably connected to the telescopic rod (22); the support leg (242) is connected to the rotating seat (241); the rotating seat (241) is used to drive the support leg (242) to rotate and fix; the support leg (242) can be rotated to be parallel to the length direction of the telescopic rod (22), or the side of the support leg (242) facing the ground can be rotated to a position parallel to the ground.

2. The geological surveying and mapping instrument lifting frame according to claim 1, characterized in that: The support leg (242) is detachably connected to the rotating seat (241); a side of the support leg (242) facing the ground is provided with an anti-skid pad (243); and a plurality of anti-skid teeth (244) are arranged at intervals on the opposite side; by disassembling the support leg (242) and changing the connection direction with the rotating seat (241), the side of the support leg (242) provided with the anti-skid teeth (244) can be directed toward the ground.

3. The geological surveying and mapping instrument lifting frame according to claim 1, characterized in that: A fine-tuning assembly (25) is provided between the telescopic rod (22) and the connecting rod (21), and the fine-tuning assembly (25) comprises: a rotating gear (251) disposed inside the telescopic rod (22) and rotatably connected to the telescopic rod (22); an outer side of the rotating gear (251) is provided with external teeth; a rack (211) meshing with the external teeth is provided on the connecting rod (21); and an inner side of the rotating gear (251) is provided with internal teeth (252); A driving gear (253) is fixedly connected to a rotating rod (254), and the driving gear (253) is movably connected to the telescopic rod (22) via the rotating rod (254). The driving gear (253) can be meshed or disengaged with the inner teeth (252) via the rotating rod (254).

4. The geological surveying and mapping instrument lifting frame according to claim 3, characterized in that: The fine-tuning component (25) further comprises: A housing (255) is fixedly connected to the telescopic rod (22), and the rotating rod (254) is rotatably connected to the housing (255); A fixing plate (256) fixed on the rotating rod (254); The spring (257) is sleeved on the rotating rod (254) and is located between the fixing plate (256) and the bottom of the housing (255).

5. The geological surveying and mapping instrument lifting frame according to claim 3, characterized in that: The edges of the inner teeth (252) and the teeth on the driving gear (253) that are close to each other are both processed with rounded corners.

6. The geological surveying and mapping instrument lifting frame according to claim 1, characterized in that: Also includes: A positioning rod (3) fixedly connected to the bottom center of the mounting seat (1); A sliding sleeve (31) is arranged on the positioning rod (3), a connecting rod (4) is arranged between the connecting rod (21) and the sliding sleeve (31), and two ends of the connecting rod (4) are rotatably connected to the sliding sleeve (31) and the connecting rod (21) respectively.

7. The geological surveying and mapping instrument lifting frame according to claim 6, characterized in that: The bottom end of the positioning rod (3) is provided with an insertion rod (32), and the insertion rod (32) is movably inserted inside the positioning rod (3).

8. The geological surveying and mapping instrument lifting frame according to claim 7, characterized in that: The lower end of the insertion rod (32) is a tip, and a limiting plate (33) is fixed on a side of the insertion rod (32) close to the tip.

9. The geological surveying and mapping instrument lifting frame according to claim 1, characterized in that: Also includes: The rotating rod (23) is arranged between the rotating seat (241) and the telescopic rod (22), and the rotating rod (23) and the telescopic rod (22), as well as the rotating rod (23) and the rotating seat (241) are all rotatably connected.

10. The geological surveying and mapping instrument lifting frame according to claim 9, characterized in that: The telescopic rod (22) is slidably connected to the connecting rod (21), and a positioning bolt for fixing the telescopic rod (22) is provided on the telescopic rod (22).

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