CN113483223A

CN113483223A - Surveying instrument based on satellite positioning system

Info

Publication number: CN113483223A
Application number: CN202110523135.6A
Authority: CN
Inventors: 张庆玲; 王乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-10-08

Abstract

The invention relates to the field of surveying instruments, in particular to a surveying instrument based on a satellite positioning system, which comprises an adjusting support seat, wherein a rotating set is rotatably connected inside the top end of the adjusting support seat, an adjusting and fixing device is fixedly connected to the bottom end of the adjusting support seat, the rotating set comprises a surveying instrument, a rotating chuck disc and a pointer, the surveying instrument is fixedly connected to the center of the top end of the rotating chuck disc, the pointer is symmetrically and fixedly connected to the outer ring of the top end of the rotating chuck disc, the adjusting support seat comprises a supporting rotating chuck, a lifting and fixing device and a supporting chassis, the supporting chassis is fixedly connected to the bottom end of the lifting and fixing device, and the supporting rotating chuck is fixedly connected to the top end of the lifting and fixing device. Through adjusting the supporting seat and adjusting the cooperation between the fixing device and using, can carry out the work that rises when the pivoted with this device, through adjusting fixing device's setting, can adjust this device to the horizontality to be convenient for observe the topography in higher region.

Description

Surveying instrument based on satellite positioning system

Technical Field

The invention relates to the field of surveying instruments, in particular to a surveying instrument based on a satellite positioning system.

Background

The surveying instrument is a device for collecting, processing and outputting data of construction engineering before construction, can measure a series of observation works such as various orientations, fixed distances, fixed heights and the like by placing the surveying instrument at a specified place and observing by professionals, and can measure whether the area is feasible or not in the construction process of the building through the arrangement of the surveying instrument.

However, problems still exist with mappers in operation, such as:

first, but current surveying instrument is for the convenience of observing the surrounding environment, but generally the level is pivoted, when some higher regions need to be observed, because of its inside unable angle regulation from top to bottom for can't observe the condition in higher region.

Two, current surveying instrument is all through three point fixed support, when ground and strutting arrangement nonparallel, can lead to the surveying instrument to be the angle of slope at the during operation to cause the precision of survey and drawing not up to standard, consequently need an equipment to make the improvement to above-mentioned problem.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a surveying instrument based on a satellite positioning system.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a surveying instrument based on satellite positioning system, is including adjusting the supporting seat, the inside rotation in top of adjusting the supporting seat is connected with the rotation group, the bottom fixedly connected with of adjusting the supporting seat adjusts fixing device, the rotation group is including surveying instrument, rotation chuck disc and pointer, surveying instrument fixed connection is at the top center of rotation chuck disc, pointer symmetry fixed connection is in the top outer lane department of rotation chuck disc.

Specifically, adjust the supporting seat including supporting rotating chuck, promotion fixing device and support chassis, support chassis fixed connection in the bottom that promotes fixing device, support rotating chuck fixed connection in the top that promotes fixing device.

Specifically, support and rotate chuck and include joint support pole, support top ring, spacing inserted bar and connection chassis, joint support pole symmetry fixed connection is on the top and the bottom that support top ring and connection chassis, just joint support pole is the annular and distributes, spacing inserted bar symmetry fixed connection is in the bottom on connection chassis, just spacing inserted bar is the annular and distributes.

Specifically, promote fixing device and include fixed sleeve, removal screw thread seat, accomodate groove, spacing slot, fixed chuck dish and support bearing, fixed chuck dish fixed connection is on support bearing's top, spacing slot fixed connection is on the top of fixed chuck dish, fixed sleeve fixed connection is on the top of fixed chuck dish, the inside at fixed sleeve is seted up to spacing slot symmetry, accomodate the groove symmetry and set up on fixed sleeve's side, remove screw thread seat screw thread grafting at fixed sleeve's inside center.

Specifically, the supporting chassis comprises fastening screws, a supporting hanging plate, a first gear, a connecting wheel shaft, a limiting moving rod, a containing cavity, a supporting clamping frame, a second gear and a fixing chassis, the supporting clamping frame is fixedly connected to one end of the bottom of the fixing chassis, the supporting hanging plate is inserted into the top end of the supporting clamping frame in a sliding mode, the fastening screws are inserted into two sides of the top end of the supporting hanging plate in a symmetrical mode through threads, the first gear is rotatably connected to the center of the bottom end of the supporting hanging plate, the connecting wheel shaft is fixedly connected to the center of the bottom end of the first gear, the second gear is fixedly connected to the center of the bottom end of the connecting wheel shaft, one end of the limiting moving rod is rotatably connected to the side end of the connecting wheel shaft, the other end of the limiting moving rod is inserted into the containing cavity in a sliding mode, and the containing cavity is fixedly connected to the center of the side end of the supporting clamping frame.

It is specific, adjust fixing device and include cylinder air level, first dwang, rotation curb plate, second dwang, fastening nut, clamping screw and regulation inserted bar, first dwang and second dwang rotate the inside of connecting at the rotation curb plate respectively, the cylinder air level rotates to be connected between first dwang and second dwang, clamping screw symmetry slip is wiped in the inside of rotating the curb plate, fastening nut symmetry screw thread is pegged graft at clamping screw's both ends, adjust the inserted bar and rotate and connect on clamping screw, just it is inside to adjust the bottom that the inserted bar is located the rotation curb plate.

Specifically, the top outer ring of the supporting top ring is marked with scale marks, the supporting top ring and the connecting base plate are driven to move downwards when the supporting top ring and the connecting base plate move downwards, the connecting support rod is connected in a sliding and inserting mode in the accommodating groove in a sliding and inserting mode, threads matched with the movable threaded seat are arranged in the fixed sleeve, the fixed sleeve is driven to move upwards when rotating, the movable threaded seat is driven to move upwards, the movable clamping key is fixedly connected to the inside of the supporting hanging plate, the sliding groove matched with the movable clamping key is arranged in the top end of the supporting clamping frame, and when the supporting hanging plate moves forwards to the limit position, the second gear and the first gear are respectively meshed with the fixed clamping toothed disc and the rotary clamping toothed disc.

Specifically, the rotation side plates are symmetrically and rotatably connected to the bottom end of the fixed chassis, the supporting bearing is fixedly connected to the top end of the fixed chassis, the connecting chassis is fixedly connected to the top end of the movable threaded seat, and the rotation latch disc is rotatably connected between the supporting top ring and the connecting chassis.

The invention has the beneficial effects that:

the surveying instrument based on the satellite positioning system can adjust the lifting height of the inside of the supporting seat by adjusting the arrangement of the limiting lifting device inside the supporting seat, so that the rotating group can be driven to move upwards, thereby being convenient for observing the terrain in a higher area, the transmission device can be connected with the rotating group by adjusting the arrangement of the transmission device in the supporting seat, thereby when the rotating group is finely adjusted, the rotating group can be simultaneously driven to ascend, and a user can also move the transmission device in the adjusting support seat outwards so as to disconnect the rotating group and the adjusting support seat, thereby the rotating group and the adjusting support seat can be independently adjusted, when the rotating group rotates through the indicating device in the rotating group, the indicating device can be driven to rotate on the adjusting support seat, so that a user can conveniently observe the rotating angle at any time.

The adjusting and fixing device can be adjusted to a proper angle through the adjusting device in the adjusting and fixing device, so that the angle fine adjustment work can be conveniently carried out, the calibrating device is arranged in the adjusting and fixing device, a horizontal line can be timely found out when the device is fixed, the accuracy of the device in surveying and mapping can be improved, the adjusting and fixing device is rotatably connected to the bottom end of the adjusting and supporting seat, the limiting device is fixedly connected to the inner part of the adjusting and fixing device, the adjusting and fixing device can be stretched outwards, the limiting device can be driven to limit the position between the adjusting and fixing device and the adjusting and fixing device, and the adjusting and fixing device can be prevented from continuing to rotate backwards.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of a rotating group according to the present invention;

FIG. 3 is a schematic view of an adjustable support seat according to the present invention;

FIG. 4 is a schematic view of the support spin chuck of the present invention;

FIG. 5 is a schematic view of a lifting fixture according to the present invention;

FIG. 6 is a schematic view of the support chassis of the present invention;

fig. 7 is a schematic structural view of an adjusting and fixing device of the present invention.

In the figure: 1-rotating group, 2-adjusting supporting seat, 3-adjusting fixing device, 11-surveying instrument, 12-rotating chuck disc, 13-pointer, 21-supporting rotating chuck, 22-lifting fixing device, 23-supporting chassis, 211-connecting supporting rod, 212-supporting top ring, 213-limiting inserted rod, 214-connecting chassis, 221-fixing sleeve, 222-moving threaded seat, 223-containing groove, 224-limiting inserted groove, 225-fixing chuck disc, 226-supporting bearing, 231-fastening screw, 232-supporting hanging plate, 233-first gear, 234-connecting wheel shaft, 235-limiting moving rod, 236-containing cavity, 237-supporting clamping frame, 238-second gear, 239-fixing chassis, 31-a level gauge, 32-a first rotating rod, 33-a rotating side plate, 34-a second rotating rod, 35-a fastening nut, 36-a fixed screw rod and 37-an adjusting inserted rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-7, the surveying instrument based on the satellite positioning system according to the present invention includes an adjusting support base 2, a rotating set 1 is rotatably connected inside a top end of the adjusting support base 2, an adjusting fixing device 3 is fixedly connected to a bottom end of the adjusting support base 2, the rotating set 1 includes a surveying instrument 11, a rotating chuck 12 and a pointer 13, the surveying instrument 11 is fixedly connected to a top center of the rotating chuck 12, and the pointer 13 is symmetrically and fixedly connected to an outer ring of the top end of the rotating chuck 12.

It is specific, adjust supporting seat 2 including supporting rotating chuck 21, promote fixing device 22 and support chassis 23, support chassis 23 fixed connection in the bottom that promotes fixing device 22, support rotating chuck 21 fixed connection on the top that promotes fixing device 22, through supporting rotating chuck 21 fixed connection on the top that promotes fixing device 22, when promoting fixing device 22 inside and carrying out the during operation, can drive and support rotating chuck 21 while rebound, and through supporting chassis 23 fixed connection in the bottom that promotes fixing device 22, can be with supporting chassis 23 inside removal, thereby can accomplish the work of kinetic energy transmission.

Specifically, the supporting rotation chuck 21 includes a connecting support rod 211, a supporting top ring 212, a limiting insertion rod 213 and a connecting bottom plate 214, the connecting support rod 211 is symmetrically and fixedly connected to the top and bottom ends of the supporting top ring 212 and the connecting bottom plate 214, the connecting support rods 211 are distributed annularly, the limit inserted rods 213 are symmetrically and fixedly connected with the bottom end of the connecting chassis 214, the limit inserted rods 213 are distributed annularly, are symmetrically and fixedly connected to the top and bottom ends of the connecting bottom plate 214 and the supporting top ring 212 through the connecting supporting rod 211, the connecting base plate 214 and the top ring 212 can be supported to complete the rotation, the limit inserting rods 213 are symmetrically and fixedly connected with the bottom end of the connecting base plate 214, the limit inserting slots 224 are symmetrically arranged in the fixing sleeve 221, when the connecting base plate 214 is lifted, the limit inserting rod 213 can be driven to slide and be inserted into the limit inserting slot 224, so that the connection chassis 214 can be ensured to move upwards along a straight line.

Specifically, the lifting fixing device 22 includes a fixing sleeve 221, a movable threaded seat 222, a storage groove 223, a limit slot 224, a fixing clamping toothed disc 225 and a supporting bearing 226, the fixing clamping toothed disc 225 is fixedly connected to the top end of the supporting bearing 226, the limit slot 224 is fixedly connected to the top end of the fixing clamping toothed disc 225, the fixing sleeve 221 is fixedly connected to the top end of the fixing clamping toothed disc 225, the limit slot 224 is symmetrically arranged inside the fixing sleeve 221, the storage groove 223 is symmetrically arranged on the side end of the fixing sleeve 221, the movable threaded seat 222 is screwed into the center inside of the fixing sleeve 221, the movable threaded seat 222 is screwed into the inside of the fixing sleeve 221, and the inside of the fixing sleeve 221 is provided with threads matched with the movable threaded seat 222, the fixing sleeve 221 can be rotated, and the movable threaded seat 222 can be driven to move upwards.

Specifically, the supporting chassis 23 includes a fastening screw 231, a supporting hanging plate 232, a first gear 233, a connecting wheel shaft 234, a limit moving rod 235, a receiving cavity 236, a supporting clamp frame 237, a second gear 238 and a fixing chassis 239, the supporting clamp frame 237 is fixedly connected to one end of the bottom of the fixing chassis 239, the supporting hanging plate 232 is slidably inserted into the top end of the supporting clamp frame 237, the fastening screw 231 is symmetrically screwed into two sides of the top end of the supporting hanging plate 232, the first gear 233 is rotatably connected to the bottom center of the supporting hanging plate 232, the connecting wheel shaft 234 is fixedly connected to the bottom center of the first gear 233, the second gear 238 is fixedly connected to the bottom center of the connecting wheel shaft 234, one end of the limit moving rod 235 is rotatably connected to the side end of the connecting wheel shaft 234, the other end of the limit moving rod 235 is slidably inserted into the receiving cavity 236, the receiving cavity 236 is fixedly connected to the side center of the supporting clamp frame 237, the first gear 233 is rotatably connected to the bottom end of the supporting hanging plate 232, the connecting axle 234 is fixedly connected to the bottom end of the first gear 233, and the second gear 238 is fixedly connected to the bottom end of the connecting axle 234, so that the supporting hanging plate 232 can be moved forward to an extreme position, the first gear 233 and the second gear 238 can be driven to be respectively in gear engagement with the rotating chuck 12 and the fixed chuck 225, and the work of transferring kinetic energy can be completed.

Specifically, the adjusting and fixing device 3 includes a cylindrical level bubble 31, a first rotating rod 32, a rotating side plate 33, a second rotating rod 34, a fastening nut 35, a fixing screw 36 and an adjusting insertion rod 37, the first rotating rod 32 and the second rotating rod 34 are respectively rotatably connected inside the rotating side plate 33, the cylindrical level bubble 31 is rotatably connected between the first rotating rod 32 and the second rotating rod 34, the fixing screw 36 is symmetrically and slidably connected inside the rotating side plate 33, the fastening nut 35 is symmetrically and threadedly inserted into two ends of the fixing screw 36, the adjusting insertion rod 37 is rotatably connected onto the fixing screw 36, the adjusting insertion rod 37 is located inside the bottom end of the rotating side plate 33, the adjusting insertion rod 37 is symmetrically and rotatably connected to the bottom end inside the rotating side plate 33, the fixing screw 36 symmetrically penetrates through the rotating side plate 33 and the adjusting insertion rod 37, and the fastening nut 35 can be respectively screwed inwards to the limit position, therefore, the adjusting inserted rod 37 can be fixed at the bottom end of the inner part of the rotating side plate 33, and the adjusting inserted rod 37 is prevented from tilting again when being fixed.

Specifically, the outer ring of the top end of the supporting top ring 212 is marked with a scale mark, when the supporting top ring 212 and the connecting base plate 214 move downwards, the connecting support rod 211 is driven to be inserted in the accommodating groove 223 in a sliding manner, the fixing sleeve 221 is internally provided with a thread matched with the movable threaded seat 222, when the fixing sleeve 221 rotates, the movable threaded seat 222 is driven to move upwards, the supporting hanging plate 232 is internally and fixedly connected with a movable clamping key, the top end of the supporting clamping frame 237 is internally provided with a sliding groove matched with the movable clamping key, when the supporting hanging plate 232 moves forwards to a limit position, the second gear 238 and the first gear 233 are respectively meshed with the fixed clamping tooth disc 225 and the rotating clamping tooth disc 12, the scale mark is marked on the top end of the supporting top ring 212, the pointer 13 is symmetrically and fixedly connected to the top end of the rotating clamping tooth disc 12, when the rotating clamping tooth disc 12 rotates, the pointer 13 can be driven to indicate on the scale mark, thereby can the user of being convenient for observe the pivoted angle of rotation chuck disk 12 at any time, set up on the side of fixed sleeve 221 through accomodating groove 223 symmetry, when connecting chassis 214 moves down, can drive connecting support pole 211 and move down, peg graft in the inside of accomodating groove 223 until driving connecting support pole 211 to can guarantee the integrality of fixed sleeve 221 side.

Specifically, the rotation curb plate 33 symmetry is rotated and is connected in the bottom of fixed chassis 239, support bearing 226 fixed connection is on the top of fixed chassis 239, connect chassis 214 fixed connection on the top that removes threaded seat 222, rotate latch dish 12 and rotate to be connected between supporting top ring 212 and being connected chassis 214, rotate the bottom of connecting in fixed chassis 239 through rotating curb plate 33 symmetry, can be with rotating curb plate 33 outwards stretching, thereby can accomplish the work of erectting this device, through the top and the bottom of connecting bracing piece 211 symmetry fixed connection supporting top ring 212 and being connected chassis 214, can allow to rotate latch dish 12 and connect chassis 214 and support and rotate between top ring 212, thereby be convenient for rotate the work.

The working principle is as follows: when the adjustable side plate 33 is used, the actual terrain can be observed, the adjusting insertion rod 37 is rotated to a proper angle at the bottom end inside the rotating side plate 33, meanwhile, the fixing screw rod 36 is symmetrically inserted in the adjusting insertion rod 37 and the rotating side plate 33 in a sliding manner, the fastening nuts 35 can be respectively screwed inwards to limit positions, so that the adjusting insertion rod 37 can be limited at the bottom end inside the rotating side plate 33, meanwhile, the rotating side plate 33 is symmetrically and rotatably connected to the bottom end of the fixing base plate 239, the rotating side plate 33 can be outwards pulled to limit angles, the first rotating rod 32 and the second rotating rod 34 are respectively and rotatably connected inside the rotating side plate 33, the second rotating rod 34 and the first rotating rod 32 are rotatably connected together, when the rotating side plate 33 is outwards stretched, the first rotating rod 32 and the second rotating rod 34 can be driven to rotate downwards by an angle, when the rotating side plate 33 stretches the second rotating rod 34 and the first rotating rod 32 to be in a horizontal state, can drive the cylindrical air level 31 to move to the horizontal state at the same time, meanwhile, can insert the adjusting inserted link 37 inside the soil respectively, through observing the cylindrical air level 31, can adjust the depth of the adjusting inserted link 37 into the soil again, thereby can achieve the horizontal state of the device, at this moment, the user can observe the terrain ahead through the surveying instrument 11, when needing the observation of the rotation angle type, can rotate the surveying instrument 11, can drive the rotating chuck disk 12 to rotate between the connecting chassis 214 and the supporting top ring 212, through marking the scale mark on the top outer ring of the supporting top ring 212, the pointer 13 is symmetrically and fixedly connected on the top of the rotating chuck disk 12, when the rotating chuck disk 12 is moving, can drive the pointer 13 to indicate on the scale mark of the supporting top ring 212, thereby the user can be convenient to observe the rotation degree, when needing to observe the terrain of higher region, through the top end of the fixed chassis 239 fixed by the supporting bearing 226, and the fixed chuck disk 225 is fixedly connected to the top end of the supporting bearing 226, the fixed chuck disk 225 can be rotated, so as to drive the fixed sleeve 221 to rotate, when the fixed sleeve 221 rotates, the fixed sleeve 221 is internally provided with threads matched with the movable threaded seat 222, when the fixed sleeve 221 rotates, the movable threaded seat 222 can be driven to move upwards, the connecting chassis 214 is fixedly connected to the top end of the movable threaded seat 222, when the movable threaded seat 222 rises, the connecting chassis 214 can be simultaneously driven to rise, so as to raise the height of the surveying instrument 11, and complete the observation work of a higher area, the connecting chassis 214 is symmetrically and fixedly connected to the bottom end of the connecting chassis 214 through the limiting insertion rods 213, the limiting insertion slots 224 are symmetrically arranged inside the fixed sleeve 221, when the connecting chassis 214 rises, the limiting insertion rods 213 can be driven to be slidingly inserted inside the limiting insertion slots 224, so as to avoid the phenomenon that the movable threaded seat 222 rotates with the fixed sleeve 221 when rising, when the height of the supporting hanging plate 232 needs to be adjusted while the supporting hanging plate 232 is pushed inwards, the supporting hanging plate 232 is rotatably connected to the bottom end of the supporting hanging plate 232 through the first gear 233, the connecting wheel shaft 234 is fixedly connected to the bottom end of the first gear 233, the second gear 238 is fixedly connected to the bottom end of the connecting wheel shaft 234, when the supporting hanging plate 232 moves forwards to a limit distance, the first gear 233 and the second gear 238 are driven to be respectively in gear engagement with the rotating latch disk 12 and the fixed latch disk 225, meanwhile, the movable latch is fixedly connected to the inside of the supporting hanging plate 232, the sliding groove matched with the movable latch is formed in the top end of the supporting latch 237, the supporting hanging plate 232 can be ensured to move inwards along a straight line, the phenomenon that the supporting hanging plate 232 is inclined during moving is avoided, one end of the limiting movable rod 235 is rotatably connected to the connecting wheel shaft 234, and the other end of the limiting movable rod 235 is slidably inserted into the accommodating cavity 236, when the first gear 233 moves forward, the limiting moving rod 235 is driven to move outward from the inside of the receiving cavity 236, so as to support the first gear 233 and the supporting hanging plate 232 to extend outward, and at the same time, the fastening screws 231 are respectively screwed downward until being fastened to the supporting clamping frame 237, so that the supporting hanging plate 232 is prevented from moving outward again, at this time, when the user rotates the rotating clamping disk 12, the first gear 233 is driven to rotate, when the first gear 233 rotates, the second gear 238 is driven to rotate, and the second gear 238 is in gear engagement with the fixed clamping disk 225, so that when the rotating clamping disk 12 rotates, the first gear 233, the second gear 238, the fixed clamping disk 225 and the connecting wheel axle 234 are driven to rotate simultaneously, so as to raise the observation height of the surveying instrument 11 while rotating the rotating clamping disk 12, thereby completing the operation of adjusting the height while rotating, the user may also move the support hanger plate 232 outwardly such that the first gear 233 and the second gear 238 are moved outwardly, thereby disconnecting the rotary latch plate 12 from the stationary latch plate 225 for separate operation again.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A surveying instrument based on a satellite positioning system is characterized in that: including adjusting supporting seat (2), the inside rotation in top of adjusting supporting seat (2) is connected with rotation group (1), the bottom fixedly connected with of adjusting supporting seat (2) adjusts fixing device (3), rotation group (1) is including surveying instrument (11), rotation jack disc (12) and pointer (13), surveying instrument (11) fixed connection is at the top center of rotating jack disc (12), pointer (13) symmetry fixed connection is in the top outer lane department of rotating jack disc (12).

2. A satellite positioning system based surveying instrument according to claim 1, characterized by: adjust supporting seat (2) including supporting rotating chuck (21), promotion fixing device (22) and support chassis (23), support chassis (23) fixed connection in the bottom of promoting fixing device (22), support rotating chuck (21) fixed connection on the top of promoting fixing device (22).

3. A satellite positioning system based surveying instrument according to claim 2, characterized in that: support rotating chuck (21) including joint support pole (211), support top circle (212), spacing inserted bar (213) and connect chassis (214), joint support pole (211) symmetry fixed connection is at the top and the bottom that support top circle (212) and connect chassis (214), just joint support pole (211) are the annular and distribute, spacing inserted bar (213) symmetry fixed connection is in the bottom of connecting chassis (214), just spacing inserted bar (213) are the annular and distribute.

4. A satellite positioning system based surveying instrument according to claim 3, characterized by: promote fixing device (22) including fixed sleeve (221), removal screw thread seat (222), accomodate groove (223), spacing slot (224), fixed chuck dish (225) and support bearing (226), fixed chuck dish (225) fixed connection is on the top of support bearing (226), spacing slot (224) fixed connection is on the top of fixed chuck dish (225), fixed sleeve (221) fixed connection is on the top of fixed chuck dish (225), the inside at fixed sleeve (221) is seted up to spacing slot (224) symmetry, accomodate groove (223) symmetry and set up on the side of fixed sleeve (221), remove screw thread seat (222) screw grafting at the inside center of fixed sleeve (221).

5. A satellite positioning system based surveying instrument according to claim 4, characterized by: the supporting chassis (23) comprises fastening screws (231), a supporting hanging plate (232), a first gear (233), a connecting wheel shaft (234), a limiting moving rod (235), a containing cavity (236), a supporting clamping frame (237), a second gear (238) and a fixing chassis (239), the supporting clamping frame (237) is fixedly connected to one end of the bottom of the fixing chassis (239), the supporting hanging plate (232) is inserted into the top end of the supporting clamping frame (237) in a sliding mode, the fastening screws (231) are symmetrically inserted into two sides of the top end of the supporting hanging plate (232) in a threaded mode, the first gear (233) is rotatably connected to the center of the bottom end of the supporting hanging plate (232), the connecting wheel shaft (234) is fixedly connected to the center of the bottom end of the first gear (233), the second gear (238) is fixedly connected to the center of the bottom end of the connecting wheel shaft (234), one end of the limiting moving rod (235) is rotatably connected to the side end of the connecting wheel shaft (234), the other end of the limiting moving rod (235) is inserted in the containing cavity (236) in a sliding mode, and the containing cavity (236) is fixedly connected to the center of the side end of the supporting clamping frame (237).

6. A satellite positioning system based surveying instrument according to claim 5, characterized by: adjust fixing device (3) and include cylinder air level (31), first dwang (32), rotate curb plate (33), second dwang (34), fastening nut (35), clamping screw (36) and regulation inserted bar (37), first dwang (32) and second dwang (34) rotate respectively and connect the inside at rotation curb plate (33), cylinder air level (31) rotate to be connected between first dwang (32) and second dwang (34), clamping screw (36) symmetry slip is wiped and is connect the inside at rotation curb plate (33), fastening nut (35) symmetry screw thread is pegged graft at the both ends of clamping screw (36), adjust inserted bar (37) and rotate and connect on clamping screw (36), just it is inside to be located the bottom of rotating curb plate (33) to adjust inserted bar (37).

7. A satellite positioning system based surveying instrument according to claim 6, characterized by: the top end outer ring of the supporting top ring (212) is marked with scale marks, the supporting top ring (212) and the connecting base plate (214) are driven to be inserted in the accommodating groove (223) in a sliding mode when moving downwards, threads matched with the movable threaded seat (222) are formed in the fixed sleeve (221), the movable threaded seat (222) is driven to move upwards when the fixed sleeve (221) rotates, the movable clamping key is fixedly connected to the inside of the supporting hanging plate (232), the sliding groove matched with the movable clamping key is formed in the top end of the supporting clamping frame (237), and when the supporting hanging plate (232) moves forwards to the limit position, the second gear (238) and the first gear (233) are respectively meshed with the fixed clamping toothed disc (225) and the rotary clamping toothed disc (12).

8. A satellite positioning system based surveying instrument according to claim 6, characterized by: the rotation side plate (33) is symmetrically and rotatably connected to the bottom end of the fixed chassis (239), the support bearing (226) is fixedly connected to the top end of the fixed chassis (239), the connection chassis (214) is fixedly connected to the top end of the movable threaded seat (222), and the rotation clamping toothed disc (12) is rotatably connected between the support top ring (212) and the connection chassis (214).