CN213985119U

CN213985119U - Surveying instrument adjusting device for engineering surveying and mapping

Info

Publication number: CN213985119U
Application number: CN202120291971.1U
Authority: CN
Inventors: 马国庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-08-17
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to an engineering survey and drawing technical field, concretely relates to surveying instrument adjusting device that engineering survey and drawing was used, including casing and surveying instrument, moving mechanism has been cup jointed in the inside activity of casing, casing one side fixedly connected with folding mechanism, the equal fixedly connected with removal wheel in four turning position departments of casing bottom surface, the surveying instrument bottom surface is rotated and is connected with the gomphosis board. In the utility model, the whole device can be moved by pushing the shell through the moving wheel on the shell; through the first scale plate that slides on the second spout, make on the scale plate embedding spout remove to the corresponding position of embedded groove, expand first scale plate and second scale plate to stretch to ground with the flexible bracing piece of scale plate below and support, can let surveying instrument bottom gomphosis board move on first scale plate and second scale plate, make surveying personnel can carry out precision measurement many times in the coplanar.

Description

Surveying instrument adjusting device for engineering surveying and mapping

Technical Field

The utility model relates to an engineering survey and drawing technical field, concretely relates to surveying instrument adjusting device that engineering survey and drawing was used.

Background

After the bridge abutment is finished, the actual coordinates of the center of the bridge abutment and the actual distance between the bridge abutment are measured, leveling is carried out, a leveling point on the top of the abutment is established, the heights of all parts of the top of the abutment and a pad are checked, the sizes of all parts of the abutment are measured, a finished plan is drawn, a list of the distance between the centers of the abutments and the height of the leveling point of the top of the abutment is compiled, and data are provided for erecting an upper structure.

But after the bridge was accomplished, survey crew carried out the survey and drawing during operation, can cause the condition of needing to erect again or remove the surveying instrument to appear because of surveying instrument station position problem, and is very inconvenient, and survey crew need carry out many times when surveying at the coplanar simultaneously, needs frequent motion surveying instrument position, and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problems, the utility model aims to provide a surveying instrument adjusting device for engineering surveying and mapping, which can push a shell to move the whole device through a moving wheel on the shell; through the first scale plate that slides on the second spout, make on the scale plate embedding spout remove to the corresponding position of embedded groove, expand first scale plate and second scale plate to stretch to ground with the flexible bracing piece of scale plate below and support, can let surveying instrument bottom gomphosis board move on first scale plate and second scale plate, make surveying personnel can carry out precision measurement many times in the coplanar.

The purpose of the utility model can be realized by the following technical scheme:

a surveying instrument adjusting device for engineering surveying comprises a shell and a surveying instrument, wherein a moving mechanism is movably sleeved in the shell, a folding mechanism is fixedly connected to one side of the shell, moving wheels are fixedly connected to four corner positions of the bottom surface of the shell, and an embedded plate is rotatably connected to the bottom surface of the surveying instrument;

the moving mechanism comprises a support frame, an embedded groove is formed in the top surface of the support frame, a surveying instrument is embedded into the embedded groove in a sliding mode through an embedded plate, a supporting plate is fixedly connected to the bottom surface of the support frame, a hollow shell is fixedly connected to the bottom surface of the supporting plate, one end of the hollow shell is in contact with the inner side wall of the other side of the shell, a threaded rod is movably sleeved in the center of the bottom surface of the support frame, one end of the threaded rod is rotatably connected to the inner bottom surface of the shell, the other end of the threaded rod penetrates through the hollow shell, the supporting plate and the support frame to be in contact with the inner top surface of the support frame, a circular groove is formed in the position, where the hollow shell is located, and is rotatably connected with a first bevel gear, threads are formed in the inner side wall of the first bevel gear, the, the other end of the rotating rod penetrates through the shell and is fixedly connected with a rotating handle, a moving groove is formed in the side wall of the other side of the shell at a position corresponding to the rotating rod, and two opposite sides of the adjacent moving grooves of the shell are positioned between the top surface of the support frame and the top surface of the shell and are provided with observation holes;

the folding mechanism comprises a U-shaped plate, wherein two opposite inner side walls of the U-shaped plate are respectively provided with a second chute, a first scale plate is rotatably connected between the two opposite inner side walls of the U-shaped plate, one end of the first scale plate is rotatably connected with a rotating shaft, the first scale plate is rotatably connected with the two second chutes through the rotating shaft, the other end of the first scale plate is rotatably connected with a second scale plate through a hinge, the top surfaces of the first scale plate and the second scale plate are respectively provided with an embedded chute, the cross section of the embedded chute is the same as that of the embedded chute, the bottoms of the first scale plate and the second scale plate are respectively provided with a rectangular groove, the rectangular groove is rotatably connected with a telescopic supporting rod, a surveying instrument is embedded into the embedded chute, the parallelism and the curvature of a bridge, a road and the like are detected through an observation hole, when the height needs to be adjusted, only a rotating handle is required to be rotated, and the rotating rod fixedly connected with the rotating handle starts to rotate, the second bevel gear connected with one end rotates synchronously, the first bevel gear which is embedded with the second bevel gear rises along the threaded rod in a rotating way, at the moment, the whole bracket frame starts to move upwards from the inside of the shell, when the top end of the threaded rod reaches the bottom surface of the bracket frame, the bracket frame reaches the highest movable distance, if fine measurement is needed, but the position of the surveying instrument has deviation, only the first scale plate and the second scale plate on the side parts need to slide to the embedding groove position through the second chute, the first scale plate and the second scale plate are unfolded to be parallel, the telescopic support rod below is rotated out and stretched to the ground, accurate surveying and mapping can be carried out by accurately moving according to the scales on the scale plates on the embedding chute through the surveying instrument, if the height of the first scale plate and the second scale plate exceeds the length of the side arm of the U-shaped plate, only the second-stage sliding plate needs to be pushed upwards along the first guide groove, so that the bottom of the second-stage sliding plate and the top surface of the side arm are positioned on the same plane, push away the second grade slide again, make second grade slide bottom surface and U template top surface laminate mutually, at this moment, the card piece is located U template top surface, expanding spring is located between first spout and the card piece, and be on a parallel with the U template, can remove second scale plate and first scale plate to the support frame corresponding height this moment, when the bridge after having solved and need survey and drawing completion picture, because of traditional tripod surveying instrument removes the inconvenient poor problem of observation effect who causes, and when needs carry out the precision measurement to the coplanar, can realize the survey and drawing through removing the surveying instrument on the embedding spout.

Further, the method comprises the following steps: two relative lateral walls of U template correspond adjacent second spout position department and have all seted up first guide way, and sliding connection has the second grade slide in the first guide way, two the third spout has all been seted up to adjacent U template one side of second grade slide, the equal fixedly connected with card piece in second grade slide bottom both sides, two relative lateral walls of U template are located first guide way both sides and have all seted up first spout, and four first spouts all are located adjacent card piece lateral wall center department, when making the embedded groove and the mapping appearance of embedding remove the second spout top, can make first scale plate and second scale plate remove to the height that corresponds with the embedded groove.

Further, the method comprises the following steps: the length of second grade slide equals U template lateral wall length, just first guide way length equals the length of second spout, third spout length equals second grade slide length, makes second grade slide can accomodate the gomphosis in first guide way, can remove first scale plate and second scale plate simultaneously and the corresponding height with the embedded groove.

Further, the method comprises the following steps: four second guide grooves are formed in two opposite inner side walls of the first sliding groove, a moving shaft is embedded between the two second guide grooves in a sliding mode, four telescopic springs are fixedly connected between the moving shaft and the adjacent clamping blocks, the first scale plate and the second scale plate can move to the upper portion of the U-shaped plate, and the first scale plate and the second scale plate are fixed through the telescopic springs between the clamping blocks and the moving shaft.

Further, the method comprises the following steps: the width of the bottom surface of the secondary sliding plate is equal to the width of the top surface of the side arm of the U-shaped plate, so that the second sliding groove and the third sliding groove can be connected, and meanwhile, the secondary sliding plate can be arranged on the top surface of the U-shaped plate.

Further, the method comprises the following steps: the top end of the first sliding chute penetrates through the top end of the side arm of the U-shaped plate, when the bottom surface of the second-stage sliding plate is attached to the top surface of the side wall of the U-shaped plate, the moving shaft on the second guide groove in the first sliding chute can penetrate through the first sliding chute to be connected with the clamping block, and the stability of the second-stage sliding plate is kept.

The utility model has the advantages that:

the support frame in the shell, the supporting plate and the hollow shell which are fixedly connected below the support frame are used, the rotating rod which is rotatably connected with the hollow shell is rotated, the second bevel gear on the rotating rod is rotated, the turbine which is embedded with the second bevel gear on the hollow shell is driven to rotate, the support frame is moved up and down, when the support frame moves, the first scale plate and the second scale plate on the folding mechanism are moved to the corresponding positions of the embedded grooves through the second sliding grooves, the first scale plate and the second scale plate are unfolded through hinges, and the telescopic supporting rods below the two scale plates are stretched to the ground for supporting, so that a surveying instrument can move on the first scale plate and the second scale plate through the embedded plates, and a surveying and mapping staff can perform multiple times of accurate measurement in the same plane; through the removal wheel on the casing, can move the whole device through promoting the casing.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

FIG. 2 is a schematic view of the internal structure of the middle housing of the present invention;

FIG. 3 is a schematic structural diagram of the moving mechanism of the present invention;

fig. 4 is a schematic view of the folding structure of the present invention;

FIG. 5 is a schematic view of the structure of the second stage slide plate of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic diagram of the structure of the first scale plate and the second scale plate of the present invention.

In the figure: 100. a housing; 101. a moving groove; 102. an observation hole; 110. a moving wheel; 200. a moving mechanism; 210. a support frame; 211. a groove is embedded; 220. a threaded rod; 221. a support plate; 230. a hollow shell; 231. a first bevel gear; 232. a second bevel gear; 240. rotating the rod; 241. a handle is rotated; 300. a folding mechanism; 310. a U-shaped plate; 311. a first chute; 320. a first scale plate; 330. a second scale plate; 331. a telescopic support rod; 350. embedding into the chute; 360. a second chute; 361. a third chute; 370. a second-stage sliding plate; 380. a clamping block; 381. a movable shaft; 382. a tension spring; 400. a surveying instrument; 410. a tabling plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-7, a surveying instrument adjusting device for engineering surveying and mapping includes a housing 100 and a surveying instrument 400, wherein a moving mechanism 200 is movably sleeved inside the housing 100, a folding mechanism 300 is fixedly connected to one side of the housing 100, moving wheels 110 are fixedly connected to four corners of the bottom surface of the housing 100, and a tabling plate 410 is rotatably connected to the bottom surface of the surveying instrument 400;

the moving mechanism 200 comprises a support frame 210, an embedded groove 211 is formed in the top surface of the support frame 210, the embedded groove 211 is embedded with the surveying instrument 400 through an embedded plate 410 in a sliding manner, a supporting plate 221 is fixedly connected to the bottom surface of the support frame 210, a hollow shell 230 is fixedly connected to the bottom surface of the supporting plate 221, one end of the hollow shell 230 is in contact with the inner side wall of the other side of the shell 100, a threaded rod 220 is movably sleeved at the center of the bottom surface of the support frame 210, one end of the threaded rod 220 is rotatably connected to the inner bottom surface of the shell 100, the other end of the threaded rod penetrates through the hollow shell 230, the supporting plate 221 and the support frame 210 to be in contact with the inner top surface of the support frame 210, a circular groove is formed in the position of the threaded rod 220 of the hollow shell 230, a first bevel gear 231 is rotatably connected in the circular groove, a thread is formed in the inner side wall of the first bevel gear 231, the first bevel gear 231 is rotatably connected with the threaded rod 220 through a thread, and a rotating rod 240 is rotatably connected at the center of one end of the hollow shell 230 in contact with the shell 100, one end of the rotating rod 240 is fixedly connected with a second bevel gear 232, the second bevel gear 232 is meshed with the first bevel gear 231, the other end of the rotating rod 240 penetrates through the shell 100 and is fixedly connected with a rotating handle 241, the side wall of the other side of the shell 100 is provided with a moving groove 101 at a position corresponding to the rotating rod 240, and two opposite sides of the adjacent moving groove 101 of the shell 100 are positioned between the top surface of the support frame 210 and the top surface of the shell 100 and are provided with an observation hole 102;

the folding mechanism 300 comprises a U-shaped plate 310, two opposite inner side walls of the U-shaped plate 310 are both provided with a second chute 360, a first scale plate 320 is rotatably connected between the two opposite inner side walls of the U-shaped plate 310, one end of the first scale plate 320 is rotatably connected with a rotating shaft, the first scale plate 320 is rotatably connected with the two second chutes 360 through the rotating shaft, the other end of the first scale plate 320 is rotatably connected with a second scale plate 330 through a hinge, the top surfaces of the first scale plate 320 and the second scale plate 330 are both provided with an embedded chute 350, the cross section of the embedded chute 350 is the same as that of the embedded groove 211, the bottoms of the first scale plate 320 and the second scale plate 330 are both provided with rectangular grooves, the rectangular grooves are rotatably connected with telescopic support rods 331, a mapper 400 is embedded into the embedded groove 211, parallelism and curvature of bridges, roads and the like are detected through the observation holes 102, when height adjustment is needed, only the rotating handle 241 is required, the rotating rod 240 fixedly connected with the rotating handle 241 starts to rotate, the second bevel gear 232 connected with one end synchronously rotates, the first bevel gear 231 which is embedded with the second bevel gear 232 rises along the threaded rod 220 in a rotating way by the second bevel gear 232, at the moment, the whole support frame 210 starts to move upwards from the inside of the shell 100, the top end of the threaded rod 220 reaches the bottom surface of the support frame 210, the support frame 210 reaches the highest movable distance, if fine measurement is needed, but the position of the surveying instrument 400 is deviated, only the first scale plate 320 and the second scale plate 330 at the side part need to slide to the position of the embedding groove 211 through the second sliding groove 360, the first scale plate 320 and the second scale plate 330 are unfolded to be parallel, the telescopic supporting rod 331 at the lower part is rotated out and stretched to the ground, accurate surveying can be carried out through the surveying instrument 400 on the embedding sliding groove 350 and accurate movement according to the scale on the scale plates, if the height of the first scale plate 320 and the second scale plate 330 exceeds the length of the side arm of the U310, only need push up second grade slide 370 along first guide way, make second grade slide 370 bottom and U template 310 side arm top surface be located the coplanar, push away second grade slide 370 again, make second grade slide 370 bottom surface and U template 310 top surface laminate mutually, at this moment, the card piece 380 is located U template 310 top surface, expanding spring 382 is located between first spout 311 and the card piece 380, and be on a parallel with U template 310, can remove second scale 330 and first scale 320 to support frame 210 corresponding height this moment, when having solved the bridge after the building up and need survey and accomplish the drawing, because of traditional tripod mapping instrument removes the poor problem of observation effect that the inconvenience caused, and when needing to carry out the accurate measurement to the coplanar, can realize the mapping instrument through removing the mapping instrument on embedding spout.

The U-shaped plate 310 is provided with first guide grooves at positions corresponding to the adjacent second sliding grooves 360 corresponding to the two outer side walls, a second-stage sliding plate 370 is connected in the first guide grooves in a sliding mode, a third sliding groove 361 is formed at one side of the U-shaped plate 310 adjacent to the two second-stage sliding plates 370, clamping blocks 380 are fixedly connected to two sides of the bottom end of the second-stage sliding plate 370, first sliding grooves 311 are formed at two sides of the first guide grooves corresponding to the two outer side walls of the U-shaped plate 310, the four first sliding grooves 311 are located at the centers of the side walls of the adjacent clamping blocks 380, and when the embedded groove 211 and the embedded surveying instrument 400 move to the position above the second sliding grooves 360, the first scale plate 320 and the second scale plate 330 can move to the height corresponding to the embedded groove 211; the length of the second-stage sliding plate 370 is equal to the length of the outer side wall of the U-shaped plate 310, the length of the first guide groove is equal to the length of the second sliding groove 360, and the length of the third sliding groove 361 is equal to the length of the second-stage sliding plate 370, so that the second-stage sliding plate 370 can be received and embedded in the first guide groove, and the first scale plate 320 and the second scale plate 330 can be moved to the height corresponding to the embedded groove 211; the second guide grooves have been all seted up on the two relative inside walls of four first spouts 311, and the equal slip embedding between two second guide grooves has removed axle 381, and four remove the axle 381 and the adjacent card blocks 380 between equal fixedly connected with expanding spring 382, make first scale plate 320 and second scale plate 330 can remove to U template 310 top, and fix through the expanding spring 382 between card blocks 380 and the removal axle 381.

The width of the bottom surface of the secondary sliding plate 370 is equal to the width of the top surface of the side arm of the U-shaped plate 310, so that the second sliding groove 360 and the third sliding groove 361 can be connected, and the secondary sliding plate 370 can be arranged on the top surface of the U-shaped plate 310; the top end of the first sliding chute 311 penetrates the top end of the side arm of the U-shaped plate 310, and when the bottom surface of the second sliding plate 370 is attached to the top surface of the side wall of the U-shaped plate 310, the moving shaft 381 on the second guide chute inside the first sliding chute 311 can penetrate the first sliding chute 311 to be connected with the clamping block 380, so that the stability of the second sliding plate 370 is maintained.

The working principle is as follows: when the surveying and mapping instrument 400 is used, the embedding plate 410 at the bottom end is embedded into the embedding groove 211, and the parallelism and the curvature of bridges, roads and the like are detected through the observation hole 102 on the shell 100;

when the height needs to be adjusted, the rotating handle 241 is only required to be rotated, the rotating rod 240 fixedly connected with the rotating handle 241 starts to rotate, the second bevel gear 232 connected with one end is enabled to synchronously rotate, the second bevel gear 232 enables the first bevel gear 231 which is embedded with the first bevel gear 231 to rotate and rise along the threaded rod 220, at the moment, the whole support frame 210 starts to move upwards from the inside of the shell 100, and when the top end of the threaded rod 220 reaches the bottom surface of the support frame 210, the support frame 210 reaches the movable maximum distance;

if fine measurement is needed, but the position of the surveying instrument 400 is deviated, only the first scale plate 320 and the second scale plate 330 on the side of the housing 100 need to slide to the position of the embedded groove 211 through the second sliding groove 360, the first scale plate 320 and the second scale plate 330 are unfolded to be parallel through the hinge, the two telescopic support rods 331 below the two scale plates are rotated out of the rectangular groove, the bottom ends of the telescopic support rods 331 are stretched to the ground, the surveying instrument 400 slides onto the embedded sliding groove 350 from the embedded groove 211, accurate surveying can be achieved by precisely moving according to the scales on the scale plates, if the height of the first scale plate 320 and the height of the second scale plate 330 exceeds the length of the side arm of the U-shaped plate 310, only the second-stage sliding plate 370 needs to be pushed up along the first guide groove, at the moment, the two clamping blocks 380 at the bottom end of the second-stage sliding plate 370 slide synchronously, the telescopic springs 382 on the clamping blocks 380 pull the moving shaft 381 to move in the second guide groove in the first sliding groove 311, until the bottom of the secondary sliding plate 370 and the top surface of the side arm of the U-shaped plate 310 are located on the same plane, the secondary sliding plate 370 is separated from the first guide groove, and then the secondary sliding plate 370 is pressed to make the bottom surface of the secondary sliding plate 370 fit with the top surface of the U-shaped plate 310, at this time, the clamping block 380 is located on the top surface of the U-shaped plate 310, the expansion spring 382 is located between the first sliding groove 311 and the clamping block 380 and is parallel to the U-shaped plate 310, and at this time, the second scale plate 330 and the first scale plate 320 can be moved to the corresponding height of the support frame 210;

after the use, the two telescopic support rods 331 are contracted, the telescopic support rods 331 are accommodated into rectangular grooves in the bottom surfaces of the first scale plate 320 and the second scale plate 330 through rotation, the first scale plate 320 and the second scale plate 330 are folded through hinges, at the moment, the top surfaces of the first scale plate 320 and the second scale plate 330 are attached to each other, the first scale plate 320 is rotated, the first scale plate 320 and the second scale plate 330 are manually accommodated into the U-shaped plate 310, the second-stage sliding plate 370 is pulled towards the outer side surface of the side arm of the U-shaped plate 310, the second-stage sliding plate 370 is separated from the top surface of the U-shaped plate 310, the second-stage sliding plate 370 is embedded into the first guide groove, the telescopic springs 382 on the clamping blocks 380 are separated from the top end of the first sliding groove 311, the second-stage sliding plate 370 is slid to the bottom end of the first guide groove, and the surveying instrument 400 is taken down from the embedded groove 211.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only, and various modifications, additions and substitutions as described for the specific embodiments described herein may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.

Claims

1. A surveying instrument adjusting device for engineering surveying comprises a shell (100) and a surveying instrument (400), and is characterized in that a moving mechanism (200) is movably sleeved in the shell (100), a folding mechanism (300) is fixedly connected to one side of the shell (100), moving wheels (110) are fixedly connected to four corner positions of the bottom surface of the shell (100), and a tabling plate (410) is rotatably connected to the bottom surface of the surveying instrument (400);

the moving mechanism (200) comprises a support frame (210), an embedded groove (211) is formed in the top surface of the support frame (210), a surveying instrument (400) is embedded in the embedded groove (211) in a sliding mode through an embedded plate (410), a supporting plate (221) is fixedly connected to the bottom surface of the support frame (210), a hollow shell (230) is fixedly connected to the bottom surface of the supporting plate (221), one end of the hollow shell (230) is in contact with the inner side wall of the other side of the shell (100), a threaded rod (220) is movably sleeved in the center of the bottom surface of the support frame (210), one end of the threaded rod (220) is rotatably connected to the inner bottom surface of the shell (100), the other end of the threaded rod penetrates through the hollow shell (230), the supporting plate (221) and the support frame (210) to be in contact with the inner top surface of the support frame (210), a circular groove is formed in the position, of the hollow shell (230) located on the threaded rod (220), and a first bevel gear (231) is rotatably connected in the circular groove, the inner side wall of the first bevel gear (231) is provided with threads, the first bevel gear (231) is connected with the threaded rod (220) in a screwing mode through the threads, the center of one end, contacting the shell (100), of the hollow shell (230) is rotatably connected with a rotating rod (240), one end of the rotating rod (240) is fixedly connected with a second bevel gear (232), the second bevel gear (232) is meshed with the first bevel gear (231), the other end of the rotating rod (240) penetrates through the shell (100) and is fixedly connected with a rotating handle (241), the side wall of the other side of the shell (100) is provided with a moving groove (101) at a position corresponding to the rotating rod (240), and two opposite sides of each moving groove (101) adjacent to the shell (100) are positioned between the top surface of the support frame (210) and the top surface of the shell (100) and are provided with observation holes (102);

the folding mechanism (300) comprises a U-shaped plate (310), two opposite inner side walls of the U-shaped plate (310) are respectively provided with a second sliding chute (360), a first scale plate (320) is rotatably connected between two opposite inner side walls of the U-shaped plate (310), one end of the first scale plate (320) is rotatably connected with a rotating shaft, and the first scale plate (320) is rotationally connected with the two second chutes (360) through a rotating shaft, the other end of the first scale plate (320) is rotationally connected with a second scale plate (330) through a hinge, the top surfaces of the first scale plate (320) and the second scale plate (330) are both provided with embedded chutes (350), and the cross section of the embedding sliding groove (350) is the same as that of the embedding groove (211), rectangular grooves are formed in the bottoms of the first scale plate (320) and the second scale plate (330), and the rectangular grooves are rotatably connected with telescopic supporting rods (331).

2. The surveying instrument adjusting device for engineering surveying and mapping according to claim 1, wherein a first guide groove is formed in each of two opposite outer side walls of the U-shaped plate (310) at positions corresponding to adjacent second sliding grooves (360), a second-stage sliding plate (370) is slidably connected in the first guide groove, a third sliding groove (361) is formed in each of two adjacent U-shaped plates (310) of the second-stage sliding plate (370), clamping blocks (380) are fixedly connected to both sides of the bottom end of the second-stage sliding plate (370), first sliding grooves (311) are formed in each of two opposite outer side walls of the U-shaped plate (310) at both sides of the first guide groove, and four first sliding grooves (311) are located at centers of side walls of the adjacent clamping blocks (380).

3. The surveying instrument adjusting device for engineering surveying according to claim 2, wherein the length of the secondary sliding plate (370) is equal to the length of the outer side wall of the U-shaped plate (310), the length of the first guide groove is equal to the length of the second sliding groove (360), and the length of the third sliding groove (361) is equal to the length of the secondary sliding plate (370).

4. The surveying instrument adjusting device for engineering surveying and mapping according to claim 2, wherein two opposite inner side walls of the four first sliding grooves (311) are respectively provided with a second guide groove, a moving shaft (381) is embedded between the two second guide grooves in a sliding manner, and a telescopic spring (382) is fixedly connected between each of the four moving shafts (381) and the adjacent clamping block (380).

5. The surveying instrument adjusting device for engineering surveying according to claim 2, wherein the width of the bottom surface of the secondary sliding plate (370) is equal to the width of the top surface of the side arm of the U-shaped plate (310).

6. The surveying instrument adjusting device for engineering surveying and mapping according to claim 2, wherein the top end of the first sliding chute (311) penetrates through the top ends of the side arms of the U-shaped plate (310).