CN212082373U - A cadastral surveying and mapping centering device - Google Patents

Abstract

The utility model discloses a cadastral surveying and mapping centering device, which comprises a surveying and mapping column, a rotating disk, a support plate and a spreading structure. The surveying and mapping column is symmetrically provided with four groups of supporting cavities near the bottom, a matching cavity is opened inside the surveying column near the bottom, a communication cavity is opened between the matching cavity and the supporting cavity, and a supporting structure is arranged in the matching cavity , the top of the chassis is symmetrically provided with four groups of adjustment cavities, and an adjustment structure is arranged in the adjustment cavity, and the adjustment structure is arranged between the top plate and the chassis, a cavity is opened inside the surveying column near the top, and the cavity is arranged There are centering rods, which in turn pass through the chassis and the top plate. The cadastral surveying and mapping centering device has a reasonable design, can quickly unfold and prop up the support plate, avoid adjusting the tripod, and can accurately adjust the levelness of the top plate, which is suitable for popularization.

Description

A cadastral surveying and mapping centering device

technical field

The utility model belongs to the technical field of surveying and mapping equipment, in particular to a cadastral surveying and mapping centering device.

Background technique

The centering pole is an instrument used in conjunction with instruments such as total stations and theodolites. It is generally used for positioning and point-to-point functions. The centering pole adopts an integrated centering pole with integrated technology of "laser rangefinder + precision magnifying device + display screen", and then uses the controller to process data and output. The design is simple and clear, the operation is simple in actual operation, and the precision is high. After many experimental demonstrations, it can meet the needs of high-precision measurement work.

Most of the existing centering devices are supported by three or more sets of tripods. When supporting and fixing, multiple sets of tripods need to be adjusted to achieve leveling, which is time-consuming and labor-intensive.

Utility model content

The purpose of this utility model is to provide a cadastral surveying and mapping centering device to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a cadastral surveying and mapping centering device, comprising a surveying and mapping column, a rotating disk, a support plate and a propping structure, the surveying and mapping column is in a circular columnar structure, and the A drawstring is arranged on the side, and four sets of support cavities are symmetrically opened near the bottom of the surveying column, and a support plate is arranged at the support cavity, and a pin shaft is arranged at the bottom of the support plate, and the support plate passes through the pin shaft. The rod is hingedly installed in the support cavity, the interior of the surveying column is provided with a matching cavity near the bottom, a communication cavity is opened between the matching cavity and the support cavity, and a support structure is arranged in the matching cavity. A rotating plate is arranged at the middle section of the side, a chassis is fixed at the top of the surveying column, a top plate is arranged at the top of the chassis, two sets of cylindrical vials are embedded and installed on the top of the top plate, and four sets of cylinders are symmetrically opened on the top of the chassis. A set of adjustment cavities, and an adjustment structure is arranged in the adjustment cavity, and the adjustment structure is arranged between the top plate and the chassis, a cavity is opened in the interior of the surveying column near the top, and a centering rod is arranged in the cavity. The rod goes through the chassis and then the top plate in sequence.

Preferably, the expansion structure includes a support rod, a bevel gear, a threaded rod and a collar, the threaded rod is rotatably arranged in the matching cavity, a collar is sleeved and installed on the threaded rod, and the threaded rod is connected to the socket. The rings are threadedly matched, a support rod is hingedly installed between the outer edge of the collar and the support plate, a bevel gear is fixed at the top of the threaded rod, a connecting rod is fixed on one side of the rotating disk, and the connecting rod is on the A matching wheel is fixed, and the matching wheel meshes with the bevel gear.

Preferably, the outer edge of the collar is provided with four sets of mounting seats in an annular array with the center of the collar as the center, the mounting seats are slidably arranged in the communication cavity, and the mounting seats are hingedly mounted with support rods, and the other side of the support rods One end is hingedly mounted on the support plate.

Preferably, the adjustment structure includes an adjustment rod, a slider and a push rod, the adjustment rod is rotatably arranged in the adjustment cavity, and a slider is sleeved and installed on the adjustment rod, and the slider and the bottom of the top plate are fixed with A fixed seat, both ends of the push rod are fixed with spherical fasteners, and the spherical fasteners are respectively rotatably embedded in the fixed seat, one end of the adjustment rod protrudes through the chassis, and the extended end is fixed There are knobs.

Preferably, a fixing cylinder is provided at the top center of the top plate, the centering rod protrudes through the fixing cylinder, fastening bolts are installed on the outer side of the fixing cylinder, and the upper outer wall of the centering rod is engraved With tick marks.

The technical effects and advantages of the utility model: the cadastral surveying and mapping centering device, through the set surveying and mapping column, the support plate in the surveying and mapping column, the rotating disk and the support rod, bevel gear, threaded rod and collar and pull-out structure in the spreader structure The cooperation between the straps can quickly support the support plate during work, avoiding the adjustment of the tripod one by one, and quickly retract it after the work, and carry it through the pull strap, so as to avoid the tripod being tied and fixed and taken away , Through the adjustment structure arranged between the top plate and the chassis, and the cooperation between the slider, the push rod, the top plate and the cylindrical level bubble in the adjustment structure, the levelness of the top plate can be accurately and quickly adjusted during operation, thereby ensuring When the centering pole is extended, keep it vertical to avoid adjusting the tripod one by one, which is time-consuming and labor-intensive. The cadastral surveying and mapping centering device has a reasonable design, can quickly unfold and prop up the support plate, avoid adjusting the tripod, and can accurately adjust the levelness of the top plate, which is suitable for popularization.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural schematic diagram after the support plate of the utility model is unfolded;

Fig. 3 is the sectional view of the utility model;

FIG. 4 is an enlarged view of the position A in FIG. 3 of the present utility model.

In the picture: 1 surveying and mapping column, 2 rotating disk, 3 supporting plate, 4 spreading structure, 5 supporting rod, 6 bevel gear, 7 threaded rod, 8 collar, 9 centering rod, 10 chassis, 11 adjusting structure, 12 knob , 13 adjustment rod, 14 slider, 15 push rod, 16 top plate, 17 cylindrical level bubble, 18 fixed cylinder, 181 fastening bolts.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides a cadastral surveying and mapping centering device as shown in Figures 1-4, comprising a surveying and mapping column 1, a rotating disk 2, a support plate 3 and a propping structure 4, the surveying and mapping column 1 is a circular columnar structure, A drawstring is provided on the side of the surveying and mapping column 1 , and four sets of supporting cavities are symmetrically opened near the bottom of the surveying and mapping column 1 , a supporting plate 3 is provided at the supporting cavity, and a pin is provided at the bottom of the supporting plate 3 . A shaft rod, and the support plate 3 is hingedly installed in the support cavity through the pin shaft rod, the interior of the surveying column 1 is provided with a matching cavity near the bottom, and a communication cavity is opened between the matching cavity and the support cavity, and the matching cavity is provided with There is a spreading structure 4, a rotating disk 2 is provided at the middle section of the outer side of the surveying and mapping column 1, a chassis 10 is fixed at the top of the surveying and mapping column 1, and a top plate 16 is provided at the top of the bottom plate 10. The top plate 16 Two sets of cylindrical level bubbles 17 are embedded and installed on the top, and four sets of adjustment cavities are symmetrically opened on the top of the chassis 10, and an adjustment structure 11 is arranged in the adjustment cavity, and the adjustment structure 11 is arranged between the top plate 16 and the chassis 10, so The interior of the surveying and mapping column 1 is provided with a cavity near the top, and a centering rod 9 is arranged in the cavity, and the centering rod 9 passes through the chassis 10 and the top plate 16 in sequence.

Specifically, the expansion structure 4 includes a support rod 5, a bevel gear 6, a threaded rod 7 and a collar 8. The expansion structure 4 can quickly support or retract the support plate 3 during operation. The threaded rod 7 is rotatably arranged in the matching cavity, the threaded rod 7 is sleeved and installed with a collar 8, the threaded rod 7 and the collar 8 are threadedly matched, and the outer edge of the collar 8 and the support plate 3 are connected. A support rod 5 is hingedly installed between the two sides, a bevel gear 6 is fixed at the top of the threaded rod 7, a connecting rod is fixed on one side of the rotating disk 2, and a matching wheel is fixed on the connecting rod, and the matching wheel and the bevel gear 6 are fixed. mesh.

Specifically, four sets of mounting seats are arranged in an annular array on the outer edge of the collar 8 with the center of the collar 8 as the center. The other end of the rod 5 is hingedly mounted on the support plate 3 .

Specifically, the adjustment structure 11 includes an adjustment rod 13, a slider 14 and a push rod 15. The adjustment structure 11 can precisely and quickly adjust the levelness of the top plate during operation, thereby ensuring that when the centering rod is extended Keeping vertical, the adjusting rod 13 is rotatably arranged in the adjusting cavity, and the adjusting rod 13 is sleeved with a sliding block 14, the sliding block 14 and the bottom of the top plate 16 are fixed with a fixed seat, and the pushing rod 15 is Both ends are fixed with spherical fasteners, the spherical fasteners can be slightly rotated to move the angle, thereby facilitating the adjustment of the adjustment structure 11, and the spherical fasteners are respectively rotated and embedded in the fixed seat, and one end of the adjustment rod 13 is pierced through. It protrudes through the chassis 10, and a knob 12 is fixed at the protruding end.

Specifically, a fixing cylinder 18 is provided at the top center of the top plate 16 , the centering rod 9 protrudes through the fixing cylinder 18 , and a fastening bolt 181 is installed on the outer side of the fixing cylinder 18 . A scale line is engraved on the upper outer wall of the middle rod 9 .

Working principle: The cadastral surveying and mapping centering device, when working, when surveying and mapping operations are required, place the surveying and mapping column 1 on the ground, turn the rotating disk 2 forward, and when the rotating disk 2 rotates, it drives the matching wheel to rotate, and the matching wheel and the bevel gear 6, and then the bevel gear 6 rotates, the bevel gear 6 rotates to drive the threaded rod 7 to rotate, and the threaded rod 7 and the collar 8 are threaded, so that the collar 8 is lowered, and the collar 8 is lowered, and then Make the support rod 5 support the support plate 3, and after the surveying and mapping column 1 is supported, adjust the knob 12 in the corresponding direction according to the two sets of cylindrical level bubbles 17. Thread fit, so that the support rod 5 is supported, and then the balance at the top plate 16 is adjusted. After adjustment, when the centering operation is required, twist the fastening bolt 181, pull out the centering rod 9 of the corresponding length, and twist the Tighten the bolt 181 and fix the surveying and mapping prism seat. The cadastral surveying and mapping centering device has a reasonable design, can quickly unfold and prop up the support plate, avoid adjusting the tripod, and can accurately adjust the levelness of the top plate, which is suitable for popularization.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of its technical features, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present invention.

Claims (5)

1. A cadastral surveying and mapping centering device, comprising a surveying and mapping column (1), a rotating disk (2), a support plate (3) and a spreading structure (4), characterized in that: the surveying and mapping column (1) is circular A columnar structure, the side of the surveying and mapping column (1) is provided with a pull strap, and the surveying and mapping column (1) is symmetrically provided with four groups of supporting cavities near the bottom, and a supporting plate (3) is provided at the supporting cavity, A pin shaft rod is provided at the bottom of the support plate (3), and the support plate (3) is hingedly installed in the support cavity through the pin shaft rod, and a matching cavity is opened in the interior of the surveying column (1) near the bottom, and the matching cavity A communication cavity is provided between the supporting cavity and the supporting cavity, and a supporting structure (4) is arranged in the matching cavity. ) a bottom plate (10) is fixed at the top, a top plate (16) is provided at the top of the bottom plate (10), two sets of cylindrical vials (17) are embedded and installed on the top of the top plate (16), and the bottom plate (10) ) There are four sets of adjustment cavities symmetrically opened at the top, and an adjustment structure (11) is arranged in the adjustment cavity, and the adjustment structure (11) is arranged between the top plate (16) and the chassis (10). A cavity is opened near the top, and a centering rod (9) is arranged in the cavity, and the centering rod (9) passes through the chassis (10) and the top plate (16) in sequence. 2. A cadastral surveying and mapping centering device according to claim 1, characterized in that: the spreader structure (4) comprises a support rod (5), a bevel gear (6), a threaded rod (7) and a collar (8), the threaded rod (7) is rotatably arranged in the matching cavity, a collar (8) is sleeved and installed on the threaded rod (7), and the threaded rod (7) and the collar (8) are installed. A support rod (5) is hingedly installed between the outer edge of the collar (8) and the support plate (3), and a bevel gear (6) is fixed at the top of the threaded rod (7). A connecting rod is fixed on one side of the disc (2), and a matching wheel is fixed on the connecting rod, and the matching wheel meshes with the bevel gear (6). 3 . The cadastral surveying and mapping centering device according to claim 2 , wherein the outer edge of the collar ( 8 ) is provided with four sets of mounting seats in an annular array with the center of the collar ( 8 ) as the center. 4 . The seat is slidably arranged in the communication cavity, and a support rod (5) is hingedly mounted on the mounting seat, and the other end of the support rod (5) is hingedly mounted on the support plate (3). 4. A cadastral surveying and mapping centering device according to claim 1, characterized in that: the adjustment structure (11) comprises an adjustment rod (13), a slider (14) and a push rod (15), the adjustment The rod (13) is rotatably arranged in the adjusting cavity, and the adjusting rod (13) is sleeved and installed with a sliding block (14), and a fixing seat is fixed at the bottom of the sliding block (14) and the top plate (16). Both ends of the push rod (15) are fixed with spherical fasteners, and the spherical fasteners are respectively rotatably embedded in the fixed seat, and one end of the adjustment rod (13) protrudes through the chassis (10), and A knob (12) is fixed on the extension end. 5. A cadastral surveying and mapping centering device according to claim 1, characterized in that: a fixed cylinder (18) is provided at the top center of the top plate (16), and the centering rod (9) passes through the fixed cylinder (18) is extended, and a fastening bolt (181) is installed on the outer side of the fixing cylinder (18), and a scale line is engraved on the upper outer wall of the centering rod (9).

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