Land measuring instrument for land management

Abstract

The invention provides a land measuring instrument for land management, and relates to the technical field of land measuring instruments, the land measuring instrument comprises a measuring instrument body, a base is mounted at the bottom end of the measuring instrument body, a mounting seat is mounted on the lower surface of the base, a supporting mechanism is arranged on the lower surface of the mounting seat, and the supporting mechanism comprises three rotating frames; one end of each rotating frame is fixedly connected with the arc surface of the mounting base, the inner wall of each rotating frame is rotatably connected with a supporting frame, the inner wall of each supporting frame is slidably connected with a moving plate, the two sides of the upper end of each moving plate are fixedly connected with sliding rods, and a sliding groove is formed in the side wall of each supporting frame. According to the tripod, the problem that in the process of operating and using the measuring instrument, three supporting legs of the tripod are inconvenient to adjust and limit at the same time and need to be individually adjusted and controlled, so that the measuring instrument is inconvenient to further support and protect is solved.

Description

Technical Field

[0001] The invention relates to the technical field of land surveying instruments, and in particular to a land surveying instrument used for land management. Background Art

[0002] Land area measuring instrument is also known as GPS measuring instrument. In the past, whether it was charging for agricultural machinery operation or measuring land, it relied on simple pull wire or tape measure as measuring tools. Small and regular-shaped plots could be measured, but when encountering irregular shapes and large land areas, these measuring tools were helpless. Therefore, land area measuring instruments came into being, which greatly facilitated various measurements. Land measurement is an important item in land management projects. Land measurement and land measuring instruments have played an important role in better utilizing land and rationally planning land for human beings. The existing land measuring instruments are mainly total stations, which are more common in daily life.

[0003] Prior art includes an invention with publication number CN117782040A, which discloses a land surveying instrument for land management, comprising an inclination fine-tuning component, a closing mechanism, a first distance measuring component and a second distance measuring component, wherein a lifting compartment is installed at the bottom of the inclination fine-tuning component, a top plate is provided at the bottom of the lifting compartment, side rods are connected at the edges of the top plate, a bottom plate is installed at the bottom of the side rods, a mezzanine is provided inside the bottom plate, and the second distance measuring component is installed inside the mezzanine, and the land surveying instrument realizes the measurement process of distance and slope data through two sets of distance measuring modules, converts the rotation angle of the first distance measuring module through the inclination fine-tuning component, and reads it on a longer inclination measuring tape, thereby further improving the accuracy of inclination control without increasing the volume occupancy, and automatically completes locking after control, thereby enhancing stability and protection effect.

[0004] It is found in daily life that the land surveying instrument used for land management in the prior art carries a total station or a rangefinder and other surveying and mapping equipment on a tripod. However, in the process of operating the surveying instrument, it is inconvenient to adjust the three legs of the tripod at the same time, and it is cumbersome to adjust them individually, which makes it inconvenient to further support and protect the surveying instrument. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that it is inconvenient to adjust the three legs of the tripod at the same time during the operation of the measuring instrument, and it is cumbersome to adjust them individually, which makes it inconvenient to further support and protect the measuring instrument.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a land surveying instrument for land management comprises a surveying instrument body, a base is installed at the bottom end of the surveying instrument body, a mounting seat is installed on the lower surface of the base, a supporting mechanism is arranged on the lower surface of the mounting seat, the supporting mechanism comprises three rotating frames, one end of the three rotating frames are fixedly connected to the arc surface of the mounting seat, the inner wall of the rotating frame is rotatably connected to the supporting frame, the inner wall of the supporting frame is slidably connected to the moving plate, both sides of the upper end of the moving plate are fixedly connected to the sliding rod, the side wall of the supporting frame is provided with a sliding groove, the inner wall of the sliding groove is slidably connected to the arc surface of the sliding rod, the arc surface of the sliding rod is threadedly connected to a fixed shaft, the lower surface of the mounting seat is fixedly connected to a positioning rod, the bottom arc surface of the positioning rod is slidably connected to a sliding column, the side of the sliding column and the support frame close to each other is rotatably connected to the rotating rod, the arc surface of the positioning rod is threadedly connected to a driving ring, and the bottom end of the driving ring is rotatably connected to the upper surface of the sliding column.

[0007] The effects achieved by the above components are: the land surveying instrument will be used for auxiliary operations during land management, and when the surveying instrument body is used, the support mechanism will be used for support and limitation, which will help to better support and operate the surveying instrument body.

[0008] Preferably, the arc surface of the sliding rod is covered with a protective ring, the surface of the protective ring abuts against one side of the fixed shaft, and the protective ring is a rubber ring.

[0009] The effect achieved by the above components is that when the position of the slide rod is squeezed, the rubber protective ring can be used for protection to prevent the fixed shaft from falling off.

[0010] Preferably, the bottom end of the movable plate is fixedly connected to a connecting frame, an insert block is inserted into the inner wall of the connecting frame, the bottom end of the insert block is in a pointed cone shape, both side surfaces of the connecting frame are threaded with a positioning shaft, both side surfaces of the insert block are provided with positioning holes, and one end of the positioning shaft is threadedly connected to the inner wall of the positioning hole.

[0011] The effect achieved by the above components is: in the process of supporting with the help of the movable plate, the plug block with a pointed cone-shaped cross-section can be connected with the connecting frame at the bottom of the movable plate, and the positioning shaft and the positioning holes on both sides of the plug block can be used for threaded connection and fixing protection.

[0012] Preferably, the insert block is a hard alloy block, and the cross-sectional size of the insert block is matched with the cross-sectional size of the moving plate.

[0013] The effect achieved by the above components is that the insert block made of cemented carbide can be used for a long time without deformation of the insert block.

[0014] Preferably, a shielding mechanism is provided on the upper end surface of the measuring instrument body, and the shielding mechanism includes two connecting frames, one side of the two connecting frames is fixedly connected to the surface of the measuring instrument body, and the two connecting frames are respectively located on both sides of the measuring instrument body, and a support block is inserted into the inner wall of the connecting frame, and a support rod is fixedly connected to the upper end of the support block, and the upper ends of the two support rods are fixedly connected to the same baffle, and two connecting plates are fixedly connected to the position of the connecting frame on the surface of the measuring instrument body corresponding to the connection frame, and an adjusting rod is rotatably connected to one side of the two connecting plates close to each other, and one end of the adjusting rod is fixedly connected to a rotating shaft, and a thread with opposite thread directions is provided on the arc surface of the adjusting rod, and connecting plates are threadedly connected to both ends of the adjusting rod, and connecting holes are provided on the side walls of the support blocks, and the inner walls of the connecting holes are plugged into the surface of the connecting plates.

[0015] The effect achieved by the above components is: during the operation and use of the measuring instrument body, it is easy for the measuring instrument body to be placed under hot sunlight for a long time. At this time, the shielding mechanism can conveniently protect the measuring instrument body with the help of a baffle to avoid the influence of external environmental factors, so that the measuring instrument body cannot be effectively operated.

[0016] Preferably, the cross section of the baffle is triangular, the baffle is a polycarbonate plate, and the cross-sectional size of the baffle is matched with the cross-sectional size of the measuring instrument body.

[0017] The effect achieved by the above components is: the baffle made of polycarbonate material can effectively protect the surface of the measuring instrument body and can prevent long-term exposure to ultraviolet rays and erosion by rainwater.

[0018] Preferably, the cross section of one end of the connecting plate close to the connecting hole is in a constricted shape, and the cross-sectional size of the connecting plate is adapted to the inner wall size of the connecting hole.

[0019] The effect achieved by the above components is that the shrink-shaped end of the connecting plate can be conveniently and quickly plugged into the connecting hole, which is convenient for guiding auxiliary operations.

[0020] Preferably, a protective mechanism is provided on the bottom surface of the support frame, and the protective mechanism includes a protective frame and an inlay column, one end of the inlay column is fixedly connected to the surface of the support frame, and the inner wall of the protective frame is plugged into the surface of the plug block, one of the surfaces of the protective frames is fixedly connected to an auxiliary frame, and the inner wall of the auxiliary frame is rotatably connected to a rotating plate, and the cross-section of the rotating plate is "L"-shaped, and an inlay groove is provided on the end surface of the rotating plate close to the inlay column, and the inner wall of the inlay groove is plugged into the arc surface of the inlay column, and the arc surface of the inlay column is threadedly connected to an auxiliary ring.

[0021] The effect achieved by the above components is: after the support mechanism at the bottom of the entire measuring instrument body is used and recycled, in order to effectively protect the plug-in block at the bottom of the movable plate, the protective frame in the protective mechanism can be used for plug-in protection, thereby facilitating the protection of the pointed cone-shaped plug-in block and avoiding collision damage to the plug-in block.

[0022] Preferably, a protective sleeve is fixedly connected to the inner wall of the protective frame, and the protective sleeve is a silicone sleeve, and the cross-sectional size of the protective sleeve is matched with the cross-sectional size of the plug block.

[0023] The effect achieved by the above components is: the pointed cone end of the plug can be protected by means of the protective cover made of silicone material, so as to prevent the bottom end of the plug from being damaged by collision with the bottom end of the inner wall of the protective frame.

[0024] Preferably, both ends of the arc surface of the inner wall of the auxiliary frame are sleeved with coil springs, and both ends of the coil spring are fixedly connected to the auxiliary frame and the rotating plate respectively.

[0025] The effect achieved by the above components is that the position of the rotating plate can be squeezed and fixed by means of the torsional force generated by the coil spring, thereby preventing the position of the rotating plate from being offset and shaking.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are:

[0027] 1. In the present invention, by setting a supporting mechanism, the position of the entire measuring instrument body can be supported and limited. By using the positioning rod on the lower surface of the mounting frame and rotating the driving ring on the surface of the positioning rod, the driving ring can effectively drive the rotation of the sliding column, so that the rotating rod can open the rotating support frame on the lower surface of the mounting frame, and at the same time pull the support plate in the support frame to limit and fix it, so as to facilitate better operation and use of the measuring instrument body.

[0028] 2. In the present invention, by setting a shielding mechanism, the measuring instrument body can be effectively protected, the influence of external environmental factors can be reduced, and the baffle can be used for support and protection. The support rods and support blocks on both sides of the lower surface of the baffle are matched to allow the support blocks to be docked and fixed with the connecting frame fixed on the side wall of the measuring instrument body.

[0029] 3. In the present invention, by setting a protective mechanism, the plug-in block connected to the bottom end of the movable plate can be limited in position, so that the plug-in block with a pointed cone-shaped cross-section can be prevented from being damaged by accidental contact and collision. At this time, effective protection can be provided by using the protective frame and the plug-in block for docking protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional structural schematic diagram of a land surveying instrument for land management is proposed for the present invention;

[0031] Figure 2The present invention provides a structural schematic diagram of a support mechanism of a land surveying instrument for land management;

[0032] Figure 3 The present invention proposes a land surveying instrument for land management Figure 2 A schematic diagram of the enlarged structure at point A;

[0033] Figure 4 A schematic diagram of a partially disassembled structure of a support mechanism of a land surveying instrument for land management proposed by the present invention;

[0034] Figure 5 The present invention provides a structural schematic diagram of a shielding mechanism of a land surveying instrument for land management;

[0035] Figure 6 A partial structural schematic diagram of a shielding mechanism of a land surveying instrument for land management is proposed by the present invention;

[0036] Figure 7 The present invention provides a structural schematic diagram of a protection mechanism of a land surveying instrument for land management;

[0037] Figure 8 The present invention provides a partial structural schematic diagram of a protection mechanism of a land surveying instrument for land management.

[0038] Legend: 1. Measuring instrument body; 2. Base; 3. Mounting seat; 4. Support mechanism; 401. Rotating frame; 402. Support frame; 403. Moving plate; 404. Sliding rod; 405. Protective ring; 406. Fixed shaft; 407. Positioning rod; 408. Rotating rod; 409. Sliding column; 410. Driving ring; 411. Connecting frame; 412. Positioning shaft; 413. Insert block; 414. Positioning hole; 415. Slide groove; 5. Shielding mechanism; 51. Baffle; 52. Support rod; 53. Support block; 54. Connecting frame; 55. Connecting plate; 56. Adjusting rod; 57. Connecting plate; 58. Connecting hole; 59. Rotating shaft; 6. Protective mechanism; 61. Protective frame; 62. Protective sleeve; 63. Auxiliary frame; 64. Coil spring; 65. Rotating plate; 66. Inlay groove; 67. Inlay column; 68. Auxiliary ring. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0041] Embodiment 1, as Figure 1-8 As shown, the present invention provides a land surveying instrument for land management, including a surveying instrument body 1, a base 2 is installed at the bottom end of the surveying instrument body 1, a mounting seat 3 is installed on the lower surface of the base 2, a supporting mechanism 4 is arranged on the lower surface of the mounting seat 3, a shielding mechanism 5 is arranged on the upper end surface of the surveying instrument body 1, and a protective mechanism 6 is arranged on the bottom end surface of the supporting frame 402.

[0042] The specific configuration and functions of the supporting mechanism 4, the shielding mechanism 5 and the protection mechanism 6 will be described in detail below.

[0043] like Figure 2 , Figure 3 and Figure 4 As shown, the support mechanism 4 includes three rotating frames 401, one end of the three rotating frames 401 are fixedly connected to the arc surface of the mounting seat 3, the inner wall of the rotating frame 401 is rotatably connected to the support frame 402, the inner wall of the support frame 402 is slidably connected to the moving plate 403, the upper ends of the moving plates 403 are fixedly connected to the sliding rods 404 on both sides, the side walls of the support frame 402 are provided with sliding grooves 415, the inner wall of the sliding grooves 415 is slidably connected to the arc surface of the sliding rod 404, the arc surface of the sliding rod 404 is threadedly connected to the fixed shaft 406, the lower surface of the mounting seat 3 is fixedly connected to the positioning rod 407, the bottom arc surface of the positioning rod 407 is slidably connected to the sliding column 409, the sliding column 409 and the support frame 402 are rotatably connected to the rotating rod 408 on the side close to each other, and the positioning rod 4 The arc surface of 07 is threadedly connected with a driving ring 410, and the bottom end of the driving ring 410 is rotatably connected to the upper surface of the sliding column 409. The arc surface of the sliding rod 404 is covered with a protective ring 405, and the surface of the protective ring 405 abuts against one side of the fixed shaft 406. The protective ring 405 is a rubber ring. The bottom end of the movable plate 403 is fixedly connected with a connecting frame 411, and the inner wall of the connecting frame 411 is plugged with an insert block 413. The bottom end of the insert block 413 is in a pointed cone shape. The two side surfaces of the connecting frame 411 are threaded with a positioning shaft 412, and the two side surfaces of the insert block 413 are provided with a positioning hole 414. One end of the positioning shaft 412 is threadedly connected to the inner wall of the positioning hole 414, and the insert block 413 is a carbide block. The cross-sectional size of the insert block 413 is compatible with the cross-sectional size of the movable plate 403.

[0044] like Figure 5 and Figure 6As shown, the shielding mechanism 5 includes two connecting frames 54, one side of the two connecting frames 54 is fixedly connected to the surface of the measuring instrument body 1, the two connecting frames 54 are respectively located on both sides of the measuring instrument body 1, the inner wall of the connecting frame 54 is plugged with a support block 53, the upper end of the support block 53 is fixedly connected to a support rod 52, the upper ends of the two support rods 52 are fixedly connected to the same baffle 51, and the position of the surface of the measuring instrument body 1 corresponding to the connecting frame 54 is fixedly connected to two connecting plates 55, and the side of the two connecting plates 55 close to each other is rotatably connected to an adjusting rod 56, and the adjusting rod 56 is One end is fixedly connected with a rotating shaft 59, the arc surface of the adjusting rod 56 is provided with threads with opposite thread directions, both ends of the adjusting rod 56 are threadedly connected with connecting plates 57, the side wall of the supporting block 53 is provided with a connecting hole 58, the inner wall of the connecting hole 58 is plugged into the surface of the connecting plate 57, the cross-section of the baffle 51 is triangular, the baffle 51 is a polycarbonate plate, the cross-sectional size of the baffle 51 is adapted to the cross-sectional size of the measuring instrument body 1, the cross-sectional size of the connecting plate 57 at one end close to the connecting hole 58 is constricted, and the cross-sectional size of the connecting plate 57 is adapted to the inner wall size of the connecting hole 58.

[0045] like Figure 7 and Figure 8 As shown, the protection mechanism 6 includes a protection frame 61 and an inlay column 67, one end of the inlay column 67 is fixedly connected to the surface of the support frame 402, the inner wall of the protection frame 61 is plugged into the surface of the plug block 413, one surface of one of the protection frames 61 is fixedly connected to an auxiliary frame 63, the inner wall of the auxiliary frame 63 is rotatably connected to a rotating plate 65, the cross-section of the rotating plate 65 is "L"-shaped, an inlay groove 66 is provided on the surface of one end of the rotating plate 65 close to the inlay column 67, the inner wall of the inlay groove 66 is plugged into the arc surface of the inlay column 67, the arc surface of the inlay column 67 is threadedly connected with an auxiliary ring 68, the inner wall of the protection frame 61 is fixedly connected to a protection sleeve 62, the protection sleeve 62 is a silicone sleeve, the cross-sectional size of the protection sleeve 62 is adapted to the cross-sectional size of the plug block 413, both ends of the inner wall arc surface of the auxiliary frame 63 are sleeved with coil springs 64, the two ends of the coil spring 64 are respectively fixedly connected to the auxiliary frame 63 and the rotating plate 65.

[0046] The overall working principle is that when measuring the land, the measuring instrument body 1 will be used for operation. At this time, in order to facilitate the effective support and limit of the measuring instrument body 1, the base 2 at the bottom of the measuring instrument body 1 is first installed and fixed with the mounting frame, and then the support frame 402 in the arc surface rotating frame 401 of the mounting frame is rotated and regulated, and the moving plate 403 in the supporting frame 402 is pulled at the same time, so that the moving plate 403 supports and protects the entire measuring instrument body 1. In this process, it is necessary to rotate the driving ring 410 of the arc surface of the positioning rod 407 on the lower surface of the mounting frame to allow the driving ring 410 to drive the sliding column 409 to move up and down. At this time, the rotating rod 408 on the arc surface of the sliding column 409 drives the support frame 402 to deflect the position angle until the support frame 402 deflects to a suitable position. After the movable plate 403 in the entire support frame 402 is moved to the specified position, the fixed shaft 406 on the arc surface of the sliding rod 404 at the upper end of the movable plate 403 is rotated to squeeze and fix the fixed shaft 406 and the side wall of the support frame 402, and at the same time, the plug block 413 is plugged into the connecting frame 411 at the bottom of the movable plate 403, and the positioning shaft 412 and the positioning hole 414 opened on the side wall of the plug block 413 are threadedly connected and protected, so as to facilitate the plug-in and fixation with the help of the plug block 413 with a pointed cone-shaped cross-section.

[0047] When the measuring instrument body 1 is operated and used, in order to better protect the measuring instrument body 1, the baffle 51 arranged on the upper end of the measuring instrument body 1 is used for shielding and protection. The baffle 51 is plugged and fixed with the support rods 52 fixed on both sides of the lower surface and the support block 53 and the connecting frame 54 fixed on the side wall of the measuring instrument body 1. At the same time, the rotating shaft 59 is rotated to allow the rotating shaft 59 to drive the adjusting rod 56 to rotate, and the connecting plate 57 threadedly connected at both ends of the adjusting rod 56 is plugged and fixed with the connecting hole 58 opened on the side wall of the support block 53, so that the position of the entire baffle 51 can be temporarily docked and fixed, so that the baffle 51 can protect some external factors.

[0048] When the entire measuring instrument body 1 is recovered, the pointed conical plug 413 at the bottom of the entire supporting mechanism 4 is prone to accidental contact and damage. At this time, effective protection is provided with the help of the protective mechanism 6, so that the protective frame 61 and the plug 413 are plugged in. At the same time, the rotating plate 65 in the auxiliary frame 63 on one side of the protective frame 61 is turned over, so that the inlay groove 66 on the upper surface of the rotating plate 65 is plugged in with the inlay column 67 fixed on the surface of the protective frame 61, and at the same time, the auxiliary ring 68 on the surface of the inlay column 67 is rotated for threaded docking and fixing, thereby effectively and conveniently protecting and limiting the entire plug 413.

[0049] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A land surveying instrument for land management, comprising a surveying instrument body (1), characterized in that: A base (2) is installed at the bottom end of the measuring instrument body (1), a mounting seat (3) is installed on the lower surface of the base (2), a support mechanism (4) is arranged on the lower surface of the mounting seat (3), and the support mechanism (4) comprises three rotating frames (401), one end of each of the three rotating frames (401) is fixedly connected to the arc surface of the mounting seat (3), the inner wall of each of the rotating frames (401) is rotatably connected to a support frame (402), the inner wall of each of the supporting frames (402) is slidably connected to a moving plate (403), both sides of the upper end of each of the moving plates (403) are fixedly connected to sliding rods (404), and the side wall of the supporting frame (402) is provided with a A slide groove (415) is provided, the inner wall of the slide groove (415) is slidably connected to the arc surface of the slide rod (404), the arc surface of the slide rod (404) is threadedly connected to a fixed shaft (406), the lower surface of the mounting seat (3) is fixedly connected to a positioning rod (407), the bottom arc surface of the positioning rod (407) is slidably connected to a sliding column (409), the sliding column (409) and the support frame (402) are rotatably connected to a rotating rod (408) on one side where the sliding column (409) and the support frame (402) are close to each other, the arc surface of the positioning rod (407) is threadedly connected to a driving ring (410), and the bottom end of the driving ring (410) is rotatably connected to the upper surface of the sliding column (409).

2. A land surveying instrument for land management according to claim 1, characterized in that: The arc surface of the sliding rod (404) is covered with a protective ring (405), the surface of the protective ring (405) is in contact with one side of the fixed shaft (406), and the protective ring (405) is a rubber ring.

3. A land surveying instrument for land management according to claim 1, characterized in that: The bottom end of the movable plate (403) is fixedly connected to a connection frame (411), an insert block (413) is inserted into the inner wall of the connection frame (411), the bottom end of the insert block (413) is in a pointed cone shape, both side surfaces of the connection frame (411) are threadedly penetrated by positioning shafts (412), both side surfaces of the insert block (413) are provided with positioning holes (414), and one end of the positioning shaft (412) is threadedly connected to the inner wall of the positioning hole (414).

4. A land surveying instrument for land management according to claim 3, characterized in that: The insert block (413) is a hard alloy block, and the cross-sectional dimensions of the insert block (413) are compatible with the cross-sectional dimensions of the moving plate (403).

5. A land surveying instrument for land management according to claim 1, characterized in that: The upper end surface of the measuring instrument body (1) is provided with a shielding mechanism (5), the shielding mechanism (5) comprising two connecting frames (54), one side of the two connecting frames (54) is fixedly connected to the surface of the measuring instrument body (1), the two connecting frames (54) are respectively located on both sides of the measuring instrument body (1), the inner wall of the connecting frame (54) is plugged with a supporting block (53), the upper end of the supporting block (53) is fixedly connected to a supporting rod (52), the upper ends of the two supporting rods (52) are fixedly connected to the same baffle (51), and the measuring instrument body Two connecting plates (55) are fixedly connected to the position of the connecting frame (54) on the surface of the body (1); an adjusting rod (56) is rotatably connected to the side of the two connecting plates (55) close to each other; one end of the adjusting rod (56) is fixedly connected to a rotating shaft (59); a circular arc surface of the adjusting rod (56) is provided with threads in opposite directions; both ends of the adjusting rod (56) are threadedly connected to a connecting plate (57); a connecting hole (58) is provided on the side wall of the support block (53); and the inner wall of the connecting hole (58) is plugged into the surface of the connecting plate (57).

6. A land surveying instrument for land management according to claim 5, characterized in that: The baffle (51) has a triangular cross-section, is a polycarbonate plate, and has a cross-sectional dimension that matches that of the measuring instrument body (1).

7. A land surveying instrument for land management according to claim 5, characterized in that: The cross section of one end of the connecting plate (57) close to the connecting hole (58) is in a constricted shape, and the cross-sectional dimensions of the connecting plate (57) are matched with the inner wall dimensions of the connecting hole (58).

8. A land surveying instrument for land management according to claim 1, characterized in that: The bottom surface of the support frame (402) is provided with a protection mechanism (6), and the protection mechanism (6) comprises a protection frame (61) and an inlay column (67), one end of the inlay column (67) is fixedly connected to the surface of the support frame (402), and the inner wall of the protection frame (61) is plugged into the surface of the plug block (413), one surface of the protection frame (61) is fixedly connected to an auxiliary frame (63), and the inner wall of the auxiliary frame (63) is rotatably connected to a rotating plate (65), and the cross section of the rotating plate (65) is "L" shaped, and an inlay groove (66) is provided on the surface of one end of the rotating plate (65) close to the inlay column (67), and the inner wall of the inlay groove (66) is plugged into the arc surface of the inlay column (67), and the arc surface of the inlay column (67) is threadedly connected to an auxiliary ring (68).

9. A land surveying instrument for land management according to claim 8, characterized in that: A protective sleeve (62) is fixedly connected to the inner wall of the protective frame (61); the protective sleeve (62) is a silicone sleeve; and the cross-sectional dimensions of the protective sleeve (62) are compatible with the cross-sectional dimensions of the plug block (413).

10. A land surveying instrument for land management according to claim 8, characterized in that: Both ends of the arc surface of the inner wall of the auxiliary frame (63) are sleeved with coil springs (64), and the two ends of the coil spring (64) are respectively fixedly connected to the auxiliary frame (63) and the rotating plate (65).

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