Surveying and mapping positioning device for land surveying and mapping

Abstract

The invention relates to the technical field of land surveying and mapping, and discloses a surveying and mapping positioning device for land surveying and mapping, which comprises a fixed table, a supporting table, a connecting frame and a servo motor, and further comprises a rotating table and a top seat, the connecting frame is fixedly connected to the inner side of the lower end surface of the fixed table, and the supporting table is fixedly connected to the outer side of the lower end surface of the fixed table; the servo motor is fixedly connected with the connecting frame through the rack, and the output shaft end of the servo motor is fixedly connected with the rotating table; the lifting mechanism is arranged on the lower end face of the supporting table, and the lifting mechanism is used for adjusting the height of the supporting table; the clamping mechanism is arranged between the rotating table and the fixed table; and the cleaning mechanism is arranged on the side wall of the adjusting clamping plate. Through the arrangement of the clamping mechanism, the surveying and mapping instrument can be quickly limited, so that the surveying and mapping instrument is prevented from toppling over when the surveying and mapping instrument is used in severe weather, and the safety of the surveying and mapping instrument during use is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of land surveying and mapping, and in particular to a surveying and positioning device for land surveying and mapping. Background Art

[0002] During the land surveying process, benchmarks need to be set before surveying. Due to the terrain, a surveying instrument positioning device needs to be used to ensure the measurement results.

[0003] After searching, the patent with publication number CN217422680U discloses an auxiliary positioning device for surveying a land surveying instrument, including a base, a first adjusting rod is rotatably connected to the front side of the base, a hinged seat is fixedly installed on the outer side of the base, a telescopic rod is hinged at one end of the hinged seat, a mounting box is movably connected to the top of the base, a second adjusting rod is rotatably connected to the front side of the mounting box, a level ruler is fixedly installed on the front side of the mounting box near the bottom of the second adjusting rod, a mounting plate is slidably connected to the top of the mounting box, and a surveying instrument is fixedly installed on the top of the mounting plate.

[0004] However, the existing surveying and positioning devices for land surveying still have shortcomings in actual use: due to the changeable environment of surveying and mapping operations, surveying and positioning devices need to be used frequently in areas with strong winds and sand. The existing surveying and positioning devices lack effective fixation of equipment and instruments, which can easily cause damage to the equipment in strong winds. At the same time, the dust and sand on the surface of the equipment cannot be cleaned up immediately after the equipment is used, resulting in the need for manual cleaning before storage, which is time-consuming and labor-intensive, and increases the labor intensity of workers. Therefore, there is an urgent need for a surveying and positioning device for land surveying. Summary of the invention

[0005] 1. Technical issues to be resolved The object of the present invention is to provide a surveying and positioning device for land surveying, so as to solve the problem in the above background technology that there is a lack of effective fixation of the surveying instrument and cleaning of its surface after use.

[0006] (II) Technical solution To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A surveying and positioning device for land surveying and mapping, comprising a fixing platform, a supporting platform, a connecting frame and a servo motor, and also comprising: The rotating table and the top seat, the connecting frame is fixedly connected to the inner side of the lower end surface of the fixed table, the supporting table is fixedly connected to the outer side of the lower end surface of the fixed table, the servo motor is fixedly connected to the connecting frame through the frame, the output shaft end of the servo motor is fixedly connected to the rotating table, the outer side of the upper end surface of the fixed table is fixedly connected with a fixed seat, the upper end surface of the top seat is fixedly connected with a top plate, and the end of the top plate away from the top seat is fixedly connected with an adjusting clamping plate; A lifting mechanism, the lifting mechanism is arranged on the lower end surface of the support platform, and the lifting mechanism is used to adjust the height of the support platform; A clamping mechanism, the clamping mechanism is arranged between the rotating table and the fixed table, and the clamping mechanism is used to adjust the position of the adjusting clamping plate so as to limit the surveying and mapping instrument; A cleaning mechanism is arranged on the side wall of the adjusting clamp plate, and is used for quickly cleaning the surveying and mapping instrument.

[0007] Preferably, the lifting mechanism includes a lifting motor, a lifting screw, a limit plate, a connecting rod, a support rod and a support foot. The middle part of the lower end surface of the support platform is fixedly connected to the lifting motor through a frame, the output shaft end of the lifting motor is fixedly connected to the lifting screw, the side wall of the lifting screw is threadedly connected to the limit plate, the side wall of the limit plate is rotatably connected to the connecting rod, the outer side of the lower end surface of the support platform is rotatably connected to the support rod, and the end of the support rod away from the support platform is rotatably connected to the support foot.

[0008] Preferably, one end of the connecting rod away from the limit plate is rotatably connected to the side wall of the support rod, and three groups of support rods are equidistantly arranged on the lower side wall of the support platform. The inner wall of the supporting foot is provided with an anti-slip texture, and the upper end surface of the rotating platform is fixedly connected to the placing platform, and the side walls of the rotating platform are fixedly connected to the fixed platform through brackets.

[0009] Through the above technical solution, under the cooperation of the connecting rod and the supporting rod, etc., it is possible to adjust the height of the placement plate.

[0010] Preferably, the clamping mechanism includes a fixed plate, a connecting plate, a rotating column, a limit column and a limit rod, the outer side of the upper end surface of the rotating table is fixedly connected to a fixed plate, the upper end surface of the fixed plate is rotatably connected to a connecting plate via a rotating shaft, and the upper end surface of the connecting plate is rotatably connected to a rotating column.

[0011] Preferably, the rotating column is rotatably connected to the top seat, a limiting groove is provided on the upper end surface of the fixed seat, the limiting column slides in the inner cavity of the limiting groove, a sliding groove is provided on the side wall of the fixed seat, the inner cavity of the sliding groove is slidably connected to a limiting rod, and the limiting rod is fixedly connected to the top seat.

[0012] Through the above technical solution, under the cooperation of the connecting plate and the rotating column, etc., the adjusting clamping plates on the peripheral sides can be brought close to each other at the same time to achieve the clamping and limiting of the surveying and mapping instrument.

[0013] Preferably, the cleaning mechanism includes a fixed sleeve, a magnetic block, a spiral rod, a return spring, a worm, a worm wheel, a rotating joint, a connecting plate and a spray head; the side wall of the adjusting splint is fixedly connected to a fixed sleeve, the inner cavity of the fixed sleeve is rotatably connected to a spiral rod, the outer wall of the spiral rod is threadedly connected to a magnetic block, the end of the spiral rod away from the fixed sleeve is fixedly connected to a worm, the upper end surface of the top plate is fixedly connected to a rotating joint, and the outer wall of the rotating joint is fixedly connected to a worm wheel.

[0014] Preferably, a reset spring is fixedly connected to the bottom surface of one end of the inner cavity of the fixed sleeve away from the adjusting splint, and the other end of the reset spring is fixedly connected to the magnetic block. The magnetic block slides in the inner cavity of the fixed sleeve, the thread lead angle of the spiral rod is greater than the equivalent friction angle of the magnetic block, and the spiral rod is provided with multiple sections of threads with different directions.

[0015] Through the above technical solution, with the cooperation of the rotating joint and the connecting plate, the spray head can be swung left and right to blow away dust and grit on all surfaces of the surveying and mapping instrument.

[0016] Preferably, a step groove is provided on the upper end surface of the adjusting splint, the inner cavity of the step groove is slidably connected with a step column, the step column is rotatably connected to the connecting plate, an arc groove is provided on the connecting plate, the inner cavity of the arc groove is slidably connected with an arc block, and the arc block is fixedly connected to the rotating joint.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The invention starts the lifting motor to rotate the lifting screw. Since the side wall of the lifting screw is threadedly connected with a limit plate, under the limiting action of the connecting rod on the side wall of the limit plate, the limit plate will slide up and down with the continuous rotation of the lifting screw, and is rotatably connected to the side wall of the support rod through one end of the connecting rod. At this time, with the continuous change of the inclination angle of the connecting rod, the connecting rod can resist the support rod to expand outward or contract inward. The support rods are equidistantly arranged on the lower side wall of the support table. At this time, the supporting angles of all the support rods can be changed at the same time to realize the function of adjusting the height of the placement table, so that the surveying and mapping instruments placed on its end face can be used normally. By arranging anti-slip textures on the inner walls of the supporting feet, the friction area between the supporting feet and the ground can be increased, thereby effectively improving the stability of the entire equipment and greatly improving the accuracy of the surveying and mapping instruments when in use.

[0018] 2. The invention starts an external water pump and connects it to the spray head through a water pipe. At this time, clean water will be sprayed from the spray head to clean and blow away the dust and gravel on the surface of the surveying and mapping instrument. At the same time, as the distance between the surveying and mapping instrument and the adjusting splint gradually becomes farther, the magnetism between the surveying and mapping instrument and the magnetic block will be reduced. Under the cooperation of the reset spring, the magnetic block can move toward the outside of the inner cavity of the fixed sleeve. At this time, the reset spring is contracted, the spiral rod will drive the worm to rotate, and the worm will drive the rotating section to rotate. Since the step column is rotatably connected to the connecting plate, and under the limiting action of the arc block and the arc groove, the connecting plate can swing back and forth on the adjusting splint. At this time, the spray angle of the spray head will also be changed, so that clean water can clean and blow away the dust and gravel on all surfaces of the surveying and mapping instrument. After that, the worker can wipe the surveying and mapping instrument with a dry towel and store it. It is convenient and fast, which greatly improves the work efficiency of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a surveying and positioning device for land surveying and mapping according to the present invention; Figure 2 This is a schematic diagram of the overall structure of a surveying and positioning device for land surveying and mapping according to the present invention, viewed from above; Figure 3 This is a schematic diagram showing the structure of a fixed platform of a surveying and positioning device for land surveying according to the present invention; Figure 4 This is a schematic diagram showing the structure of a connecting frame of a surveying and positioning device for land surveying and mapping according to the present invention; Figure 5 This is a schematic diagram showing the structure of a fixed plate of a surveying and positioning device for land surveying according to the present invention; Figure 6 This is a schematic diagram showing the structure of a fixed sleeve of a surveying and positioning device for land surveying and mapping according to the present invention; Figure 7 It is a schematic structural diagram of a first state of a cleaning mechanism of a surveying and positioning device for land surveying and mapping according to the present invention; Figure 8 This is a schematic diagram of the second state structure of a cleaning mechanism of a surveying and positioning device for land surveying according to the present invention.

[0020] In the figure: 1, fixed table; 11, support table; 2, connecting frame; 3, servo motor; 4, rotating table; 41, placing table; 42, bracket; 5, fixed seat; 51, limit slot; 52, sliding slot; 6, lifting mechanism; 61, lifting motor; 62, lifting screw; 63, limit plate; 64, connecting rod; 65, support rod; 66, supporting foot; 7, clamping mechanism; 71, fixed plate; 72, connecting plate; 73. Rotating column; 74. Limiting column; 75. Limiting rod; 8. Top seat; 81. Top plate; 82. Adjusting splint; 821. Step groove; 822. Step column; 9. Cleaning mechanism; 91. Fixed sleeve; 92. Magnetic block; 93. Screw rod; 94. Return spring; 95. Worm; 96. Worm wheel; 97. Rotating joint; 98. Connecting plate; 981. Arc groove; 982. Arc block; 99. Spray head. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 8 The present invention provides a technical solution for a surveying and positioning device for land surveying: a surveying and positioning device for land surveying, comprising a fixing platform 1, a supporting platform 11, a connecting frame 2 and a servo motor 3, and also comprising: The rotating table 4 and the top seat 8, the connecting frame 2 is fixedly connected to the inner side of the lower end surface of the fixed table 1, the supporting table 11 is fixedly connected to the outer side of the lower end surface of the fixed table 1, the servo motor 3 is fixedly connected to the connecting frame 2 through the frame, the output shaft end of the servo motor 3 is fixedly connected to the rotating table 4, the outer side of the upper end surface of the fixed table 1 is fixedly connected with the fixing seat 5, the upper end surface of the top seat 8 is fixedly connected with the top plate 81, and the end of the top plate 81 away from the top seat 8 is fixedly connected with the adjusting clamping plate 82; A lifting mechanism 6, which is disposed on the lower end surface of the support platform 11 and is used to adjust the height of the support platform 11; The clamping mechanism 7 is arranged between the rotating platform 4 and the fixed platform 1, and the clamping mechanism 7 is used to adjust the position of the adjusting clamping plate 82 so as to limit the surveying and mapping instrument; The cleaning mechanism 9 is arranged on the side wall of the adjusting clamping plate 82, and is used for quickly cleaning the surveying and mapping instrument.

[0023] Further, the lifting mechanism 6 includes a lifting motor 61, a lifting screw 62, a limit plate 63, a connecting rod 64, a support rod 65 and a support foot 66. The middle part of the lower end surface of the support platform 11 is fixedly connected with the lifting motor 61 through a frame, the output shaft end of the lifting motor 61 is fixedly connected with the lifting screw 62, the side wall of the lifting screw 62 is threadedly connected with the limit plate 63, the side wall of the limit plate 63 is rotatably connected with the connecting rod 64, the outer side of the lower end surface of the support platform 11 is rotatably connected with the support rod 65, and the end of the support rod 65 away from the support platform 11 is rotatably connected with the support foot 66; One end of the connecting rod 64 away from the limit plate 63 is rotatably connected to the side wall of the support rod 65. Three groups of support rods 65 are equidistantly arranged on the lower side wall of the support platform 11. The inner wall of the support foot 66 is provided with an anti-slip texture. The upper end surface of the rotating platform 4 is fixedly connected to the placing platform 41, and the side walls of the rotating platform 4 are fixedly connected to the fixed platform 1 through brackets 42.

[0024] The lifting and lowering screw 62 is rotated by the lifting motor 61, and the lifting and lowering screw 62 is rotated by the limit plate 63. The limit plate 63 is limited by the connecting rod 64 on the side wall of the limit plate 63. At this time, the limit plate 63 will slide up and down with the continuous rotation of the lifting and lowering screw 62, and is connected to the side wall of the support rod 65 through one end of the connecting rod 64. At this time, with the continuous change of the inclination angle of the connecting rod 64, the connecting rod 64 can resist the support rod 65 to expand outward or contract inward. Three groups of support rods 65 are equidistantly arranged on the lower side wall of the support platform 11. At this time, the supporting angles of all the support rods 65 can be changed at the same time to realize the function of adjusting the height of the placing platform 41, so that the surveying and mapping instruments placed on its end face can be used normally. The anti-slip texture is arranged on the inner wall of the supporting foot 66, which can increase the friction area between the supporting foot 66 and the ground, thereby effectively improving the stability of the entire equipment and greatly improving the accuracy of the surveying and mapping instruments when in use.

[0025] Furthermore, the clamping mechanism 7 includes a fixed plate 71, a connecting plate 72, a rotating column 73, a limiting column 74 and a limiting rod 75. The outer side of the upper end surface of the rotating table 4 is fixedly connected with the fixed plate 71, the upper end surface of the fixed plate 71 is rotatably connected with the connecting plate 72 through a rotating shaft, and the upper end surface of the connecting plate 72 is rotatably connected with the rotating column 73; The rotating column 73 is rotatably connected to the top seat 8, the upper end surface of the fixed seat 5 is provided with a limiting groove 51, the limiting column 74 slides in the inner cavity of the limiting groove 51, the side wall of the fixed seat 5 is provided with a sliding groove 52, the inner cavity of the sliding groove 52 is slidably connected with a limiting rod 75, and the limiting rod 75 is fixedly connected to the top seat 8.

[0026] It should be noted that the worker starts the servo motor 3 to rotate the rotating table 4. Since the outer side of the upper end surface of the rotating table 4 is fixedly connected with a fixed plate 71, under the limiting action of the limiting columns 74 and the limiting grooves 51, the three limiting columns 74 will drive the top seats 8 to approach each other, and the top plate 81 and the adjusting clamping plate 82 will also approach each other. Finally, the surveying and mapping instrument is clamped to ensure the stability of the surveying and mapping instrument, avoid the surveying and mapping instrument from being blown over by strong winds, and effectively improve the safety performance of the entire device.

[0027] Further, the cleaning mechanism 9 includes a fixed sleeve 91, a magnetic block 92, a screw rod 93, a return spring 94, a worm 95, a worm wheel 96, a rotating joint 97, a connecting plate 98 and a spray head 99. The fixed sleeve 91 is fixedly connected to the side wall of the adjusting clamping plate 82, the inner cavity of the fixed sleeve 91 is rotatably connected to the screw rod 93, the outer wall of the screw rod 93 is threadedly connected to the magnetic block 92, the end of the screw rod 93 away from the fixed sleeve 91 is fixedly connected to the worm 95, the upper end surface of the top plate 81 is fixedly connected to the rotating joint 97, and the outer wall of the rotating joint 97 is fixedly connected to the worm wheel 96; A return spring 94 is fixedly connected to the bottom surface of one end of the inner cavity of the fixed sleeve 91 away from the adjusting clamping plate 82, and the other end of the return spring 94 is fixedly connected to the magnetic block 92. The magnetic block 92 slides in the inner cavity of the fixed sleeve 91. The thread lead angle of the spiral rod 93 is greater than the equivalent friction angle of the magnetic block 92, and the spiral rod 93 is provided with multiple sections of threads with different directions; A stepped groove 821 is provided on the upper end surface of the adjusting splint 82, and a stepped column 822 is slidably connected to the inner cavity of the stepped groove 821. The stepped column 822 is rotatably connected to the connecting plate 98. An arc groove 981 is provided on the connecting plate 98, and an arc block 982 is slidably connected to the inner cavity of the arc groove 981. The arc block 982 is fixedly connected to the rotating joint 97.

[0028] It should be noted that by starting the external water pump, connected to the spray head 99 through the water pipe, clean water will be sprayed from the spray head 99 to clean and blow away the dust and gravel on the surface of the surveying and mapping instrument. At the same time, as the distance between the surveying and mapping instrument and the adjustment clamping plate 82 gradually becomes farther, the magnetism between the surveying and mapping instrument and the magnetic block 92 will be reduced. Under the cooperation of the reset spring 94, the magnetic block 92 can move toward the outside of the inner cavity of the fixed sleeve 91 (such as Figure 7-8As shown), at this time, the reset spring 94 is contracted, and the screw rod 93 will drive the worm 95 to rotate (the thread lead angle of the screw rod 93 is greater than the equivalent friction angle of the magnetic block 92, and the thread is not self-locking, and can serve as output parts for each other), and the worm 95 will drive the rotating joint 97 to rotate. Since the stepped column 822 is rotatably connected with the connecting plate 98, and under the limiting action of the arc block 982 and the arc groove 981, the connecting plate 98 can swing back and forth on the adjusting clamping plate 82. At this time, the spraying angle of the spray head 99 will also be changed, so that the clean water can clean and blow away the dust and gravel on all surfaces of the surveying and mapping instrument. After that, the worker can wipe the surveying and mapping instrument with a dry towel and store it. It is convenient and fast, which greatly improves the work efficiency of the workers.

[0029] Working principle: Before using the surveying and mapping instrument, the worker needs to start the lifting motor 61 to rotate the lifting screw 62. Since the side wall of the lifting screw 62 is threadedly connected to the limit plate 63, under the limiting action of the connecting rod 64 on the side wall of the limit plate 63, the limit plate 63 will slide up and down with the continuous rotation of the lifting screw 62, and one end of the connecting rod 64 is rotatably connected to the side wall of the support rod 65. At this time, as the inclination angle of the connecting rod 64 continues to change, the connecting rod 64 can resist the support rod 65 to expand outward or contract inward. Three groups of support rods 65 are equidistantly arranged on the lower side wall of the support platform 11. At this time, the supporting angles of all the support rods 65 can be changed at the same time to realize the function of adjusting the height of the placement platform 41, so that the surveying and mapping instrument placed on its end surface can be used normally. The anti-slip texture is arranged on the inner wall of the supporting foot 66, which can increase the friction area between the supporting foot 66 and the ground, thereby effectively improving the stability of the entire equipment and greatly improving the accuracy of the surveying and mapping instrument when in use. After the height of the placement table 41 is confirmed, the worker starts the servo motor 3 to rotate the rotating table 4. Since the outer side of the upper end surface of the rotating table 4 is fixedly connected with the fixing plate 71, under the limiting action of the limiting column 74 and the limiting groove 51, the three limiting columns 74 will drive the top seat 8 to approach each other, and the top plate 81 and the adjusting clamping plate 82 will also approach each other, and finally the surveying and mapping instrument is clamped to ensure the stability of the surveying and mapping instrument, and avoid the surveying and mapping instrument from being blown and tipped over when strong winds come, which effectively improves the safety performance of the entire device; After the surveying and mapping instrument is used, the external water pump is started and connected to the spray head 99 through a water pipe. At this time, clean water will be sprayed from the spray head 99 to clean and blow away the dust and gravel on the surface of the surveying and mapping instrument. At the same time, as the distance between the surveying and mapping instrument and the adjustment clamping plate 82 gradually becomes farther, the magnetism between the surveying and mapping instrument and the magnetic block 92 will be reduced. Under the cooperation of the reset spring 94, the magnetic block 92 can move toward the outside of the inner cavity of the fixing sleeve 91 (such as Figure 7-8As shown), at this time, the reset spring 94 is contracted, and the screw rod 93 will drive the worm 95 to rotate (the thread lead angle of the screw rod 93 is greater than the equivalent friction angle of the magnetic block 92, and the thread is not self-locking, and can serve as output parts for each other), and the worm 95 will drive the rotating joint 97 to rotate. Since the stepped column 822 is rotatably connected with the connecting plate 98, and under the limiting action of the arc block 982 and the arc groove 981, the connecting plate 98 can swing back and forth on the adjusting clamping plate 82. At this time, the spraying angle of the spray head 99 will also be changed, so that the clean water can clean and blow away the dust and gravel on all surfaces of the surveying and mapping instrument. After that, the worker can wipe the surveying and mapping instrument with a dry towel and store it. It is convenient and fast, which greatly improves the work efficiency of the workers.

[0030] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A surveying and positioning device for land surveying, comprising a fixing platform (1), a supporting platform (11), a connecting frame (2) and a servo motor (3), characterized in that: Also includes: A rotating table (4) and a top seat (8), the connecting frame (2) being fixedly connected to the inner side of the lower end surface of the fixed table (1), the supporting table (11) being fixedly connected to the outer side of the lower end surface of the fixed table (1), the servo motor (3) being fixedly connected to the connecting frame (2) via a frame, the output shaft end of the servo motor (3) being fixedly connected to the rotating table (4), the outer side of the upper end surface of the fixed table (1) being fixedly connected to a fixed seat (5), the upper end surface of the top seat (8) being fixedly connected to a top plate (81), and the end of the top plate (81) away from the top seat (8) being fixedly connected to an adjusting clamping plate (82); A lifting mechanism (6), the lifting mechanism (6) being arranged on the lower end surface of the support platform (11), and the lifting mechanism (6) being used to adjust the height of the support platform (11); A clamping mechanism (7), the clamping mechanism (7) being arranged between the rotating platform (4) and the fixed platform (1), the clamping mechanism (7) being used to adjust the position of the adjusting clamping plate (82) so as to limit the position of the surveying and mapping instrument; A cleaning mechanism (9), wherein the cleaning mechanism (9) is arranged on a side wall of the adjusting clamping plate (82), and the cleaning mechanism (9) is used to quickly clean the surveying and mapping instrument.

2. A surveying and positioning device for land surveying according to claim 1, characterized in that: The lifting mechanism (6) comprises a lifting motor (61), a lifting screw (62), a limit plate (63), a connecting rod (64), a support rod (65) and a support foot (66); the lifting motor (61) is fixedly connected to the middle part of the lower end surface of the support platform (11) via a frame; the lifting screw (62) is fixedly connected to the output shaft end of the lifting motor (61); the limit plate (63) is threadedly connected to the side wall of the lifting screw (62); the connecting rod (64) is rotatably connected to the side wall of the limit plate (63); the support rod (65) is rotatably connected to the outer side of the lower end surface of the support platform (11); and the support foot (66) is rotatably connected to one end of the support rod (65) away from the support platform (11).

3. A surveying and positioning device for land surveying according to claim 2, characterized in that: One end of the connecting rod (64) away from the limiting plate (63) is rotatably connected to the side wall of the support rod (65); three groups of the support rods (65) are equidistantly arranged on the lower side wall of the support platform (11); the inner wall of the support foot (66) is provided with an anti-slip texture; the upper end surface of the rotating platform (4) is fixedly connected to the placement platform (41); and the side walls of the rotating platform (4) are fixedly connected to the fixed platform (1) via brackets (42).

4. A surveying and positioning device for land surveying according to claim 1, characterized in that: The clamping mechanism (7) comprises a fixed plate (71), a connecting plate (72), a rotating column (73), a limiting column (74) and a limiting rod (75); the outer side of the upper end surface of the rotating table (4) is fixedly connected to the fixed plate (71); the upper end surface of the fixed plate (71) is rotatably connected to the connecting plate (72) via a rotating shaft; and the upper end surface of the connecting plate (72) is rotatably connected to the rotating column (73).

5. A surveying and positioning device for land surveying according to claim 4, characterized in that: The rotating column (73) is rotatably connected to the top seat (8); a limiting groove (51) is provided on the upper end surface of the fixed seat (5); the limiting column (74) slides in the inner cavity of the limiting groove (51); a sliding groove (52) is provided on the side wall of the fixed seat (5); the inner cavity of the sliding groove (52) is slidably connected to a limiting rod (75); and the limiting rod (75) is fixedly connected to the top seat (8).

6. A surveying and positioning device for land surveying according to claim 1, characterized in that: The cleaning mechanism (9) comprises a fixed sleeve (91), a magnetic block (92), a spiral rod (93), a return spring (94), a worm (95), a worm wheel (96), a rotating joint (97), a connecting plate (98) and a spray head (99); the fixed sleeve (91) is fixedly connected to the side wall of the adjusting clamping plate (82); the spiral rod (93) is rotatably connected to the inner cavity of the fixed sleeve (91); the magnetic block (92) is threadedly connected to the outer wall of the spiral rod (93); the worm (95) is fixedly connected to one end of the spiral rod (93) away from the fixed sleeve (91); the rotating joint (97) is fixedly connected to the upper end surface of the top plate (81); and the worm wheel (96) is fixedly connected to the outer wall of the rotating joint (97).

7. A surveying and positioning device for land surveying according to claim 6, characterized in that: A return spring (94) is fixedly connected to the bottom surface of one end of the inner cavity of the fixing sleeve (91) away from the adjusting clamping plate (82); the other end of the return spring (94) is fixedly connected to the magnetic block (92); the magnetic block (92) slides in the inner cavity of the fixing sleeve (91); the thread lead angle of the spiral rod (93) is greater than the equivalent friction angle of the magnetic block (92); and the spiral rod (93) is provided with a plurality of threads with different directions.

8. A surveying and positioning device for land surveying according to claim 7, characterized in that: The upper end surface of the adjusting clamping plate (82) is provided with a stepped groove (821), the inner cavity of the stepped groove (821) is slidably connected to a stepped column (822), the stepped column (822) is rotatably connected to the connecting plate (98), the connecting plate (98) is provided with an arc groove (981), the inner cavity of the arc groove (981) is slidably connected to an arc block (982), and the arc block (982) is fixedly connected to the rotating joint (97).

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