CN116336330B - Quick centering and leveling device for surveying instrument - Google Patents
Quick centering and leveling device for surveying instrument Download PDFInfo
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- CN116336330B CN116336330B CN202310419690.3A CN202310419690A CN116336330B CN 116336330 B CN116336330 B CN 116336330B CN 202310419690 A CN202310419690 A CN 202310419690A CN 116336330 B CN116336330 B CN 116336330B
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- surveying instrument
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- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000013507 mapping Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/32—Undercarriages for supports with three or more telescoping legs
- F16M11/36—Members preventing slipping of the feet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Details Of Measuring And Other Instruments (AREA)
Abstract
The invention provides a quick centering and leveling device for a surveying instrument, which comprises a first base, four first supporting legs, a second base, a universal ball, a positioning disk, a connecting rod, an instrument fixing assembly and a locking mechanism. This quick centering leveling device for surveying instrument passes through universal ball, positioning disk, connecting rod and locking mechanical system's mutually supporting, after locking mechanical system locks the position state of positioning disk, just can lock the connecting rod under vertical state to just realized centering, the flattening operation to surveying instrument, in this way, shortened the user before the survey and drawing to the time of centering, the flattening operating step of surveying instrument, reduced the degree of difficulty to surveying instrument centering and flattening regulation. And, also be favorable to improving the accuracy of survey and drawing, realized the high-efficient use to surveying and mapping instrument.
Description
Technical Field
The invention relates to the technical field of surveying instrument frames, in particular to a rapid centering and leveling device for a surveying instrument.
Background
Currently, when using surveying instruments in surveying engineering, the mounting steps for the surveying instruments generally comprise: (1) a tripod is arranged; (2) the first centering, the surveying instrument is arranged on a tripod, and the laser centering is opened to make the surveying instrument centered for the first time and the instrument is screwed; (3) rough leveling, namely enabling bubbles of the round leveling device to be approximately in the center by using a knob on a tripod, and rough leveling an instrument; (4) a second centering, translating the surveying instrument such that the distance offset from the centering point is centered during rough leveling; (5) and leveling for the second time, and leveling the surveying instrument by using a horizontal braking screw and a long level gauge.
In the above-mentioned installation operation step, need adjust the tripod position earlier, place the surveying instrument on the tripod again, after the instrument of drawing of awaiting measuring is placed, need carry out many times centering, whole operation, just can use the surveying instrument. In addition, in the use process, the observation is often carried out through a plurality of station changing, and the centering and leveling operation is needed to be carried out on the surveying instrument again before the observation.
Therefore, how to quickly perform centering and leveling operations on the surveying instrument and shorten the adjustment time of the surveying instrument before observation is a problem to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a rapid centering and leveling device for a surveying instrument, so as to improve the centering and leveling speed and shorten the centering and leveling operation time.
In order to achieve the above object, the present invention provides a rapid centering and leveling device for a surveying instrument, including a first base; a plurality of first legs hinged to the first base; the second base is arranged at the bottom of the first base, and a cylindrical inner cavity is arranged in the second base; the universal ball is in running fit with the bottom of the second base, part of the ball body of the universal ball is exposed out of the second base and is provided with a connecting column, and the ball center of the universal ball is overlapped with the axis of the inner cavity; the positioning disc is arranged at the bottom of the connecting column; the connecting rod is arranged at the bottom of the positioning disc, and the axis of the connecting rod, the axis of the connecting column and the spherical center of the universal ball are overlapped; the instrument fixing component is arranged at the bottom of the connecting rod and is used for fixing a surveying instrument; and a locking mechanism for locking the positioning plate when the connecting rod is in a vertical state so as to keep the connecting rod in a vertical state.
Preferably, a contact surface is formed on one surface of the positioning disc facing the second base, and the axis of the connecting rod is perpendicular to the contact surface; the locking mechanism includes: the locking rod bodies are in sliding fit on the inner side wall of the inner cavity along the axial direction parallel to the inner cavity, the locking rod bodies are arranged in an annular array, two ends of each locking rod body extend out of the second base respectively, and the bottom ends of the locking rod bodies are in contact with the contact surface; the abutting component is arranged in the inner cavity; and the driving assembly is used for driving the abutting assembly to synchronously abut against or loosen all the locking rod bodies.
Preferably, the abutting assembly comprises a support and a plurality of abutting units, wherein a plurality of sliding grooves are formed in the support, extend along the radial direction of the inner cavity, and are arranged in an annular array along the axis of the inner cavity; the number of the abutting units corresponds to that of the sliding grooves, and each abutting unit is respectively in sliding fit with the corresponding sliding groove;
the abutting unit comprises a sliding block, an abutting block and a driven block, wherein the sliding block is in sliding fit in the sliding groove, the abutting block is arranged outside the support and connected with the sliding block, and an arc-shaped abutting surface is arranged on one surface of the abutting block, which faces the locking rod body; the driven blocks are arranged on the sliding blocks, and the driving assembly can synchronously push all the driven blocks so as to enable the sliding blocks to slide.
Preferably, the driving assembly includes: a guide post provided on the support; the lifting column is movably arranged on the guide column in a penetrating mode, and the axis of the lifting column and the axis of the guide column are coincident with the axis of the inner cavity; the driving blocks are respectively arranged on the outer side wall of the lifting column, the number of the driving blocks corresponds to that of the driven blocks, and a first wedge-shaped surface is arranged on one side, away from the lifting column, of each driving block; the magnetic attraction piece is arranged at the top of the lifting column; the electromagnet is arranged at the top of the inner cavity and can magnetically repel the magnetic attraction piece; a first return spring for applying an elastic force to the lifting column, the elastic force being movable toward one side of the electromagnet; the number of the reset units corresponds to that of the abutting units, the reset units comprise two second reset springs, and two ends of each second reset spring are respectively connected with the cavity wall of the sliding chute and one side of the sliding block, which is away from the abutting block; and a second wedge-shaped surface is arranged on one side of the driven block, which faces the driving block, and is matched with the first wedge-shaped surface.
Preferably, the locking rod body and the second base do not rotate relatively, the bottom end of the locking rod body is provided with a hemispherical connector, and the connector is in contact with the contact surface; the locking rod body is provided with an anti-slip protrusion at one side away from the inner side wall of the inner cavity, and the abutting block can be abutted against the anti-slip protrusion; an avoidance space which can be used for lifting the locking rod body is formed between the first base and the second base.
Preferably, the instrument holder assembly comprises: the shell is of a cuboid structure, the bottom of the shell is in an open arrangement, and the center of the top of the shell is connected with the connecting rod; the screw rod is rotatably arranged in the shell and is provided with a left threaded part and a right threaded part with opposite screw threads; the two clamping arms are respectively in threaded fit with the left threaded part and the right threaded part, are symmetrically arranged along the axis of the connecting rod, extend out of the shell, do not rotate relative to the screw rod, and are respectively provided with clamping connectors on the opposite side walls; and the first rotating handle is arranged outside the shell and is connected with the screw rod.
Preferably, one end of the first supporting leg far away from the first base is provided with a second supporting leg, the second supporting leg is in telescopic fit with the first supporting leg, one end of the second supporting leg is provided with a fixed cone, and a second rotating handle used for locking the second supporting leg is in threaded fit with the first supporting leg.
The invention has the beneficial effects that:
the invention discloses a quick centering and leveling device for a surveying instrument, which is characterized in that after the surveying instrument is mounted on an instrument fixing assembly through mutual matching of a universal ball, a positioning disk, a connecting rod and a locking mechanism, the connecting rod is driven by the surveying instrument to gradually keep static in a vertical state under the action of gravity due to the existence of the universal ball, and the connecting rod can be locked in the vertical state after the positioning disk is locked by the locking mechanism, so that the centering and leveling operation of the surveying instrument is realized, the time of the centering and leveling operation steps of a user on the surveying instrument before surveying is shortened, and the centering and leveling adjustment difficulty of the surveying instrument is reduced. And, also be favorable to improving the accuracy of survey and drawing, realized the high-efficient use to surveying and mapping instrument.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic view of a rapid centering and leveling device for a surveying instrument according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first base and a first leg engaged with each other;
FIG. 3 is a schematic view of the structure of the second base;
FIG. 4 is a schematic view of the mating structure of the universal ball, the connecting post, the positioning disk and the connecting rod;
FIG. 5 is a schematic view of the structure of the locking lever;
FIG. 6 is a schematic cross-sectional view of the universal ball and locking mechanism mated with a second base;
FIG. 7 is a schematic view of the structure of the inside of the second base;
FIG. 8 is a schematic view of the structure of the abutment block abutting the locking lever;
FIG. 9 is a schematic structural view of a locking mechanism;
FIG. 10 is a top view of the FIG. 9 condition;
FIG. 11 is a schematic view in section A-A of FIG. 10;
FIG. 12 is a top view of the abutment blocks abutting against all of the locking bars;
FIG. 13 is a schematic view of the structure of the instrument holder assembly;
FIG. 14 is a schematic view of the structure of the bottom of the housing;
FIG. 15 is a schematic structural view of a surveying instrument;
FIG. 16 is a schematic view of a surveying instrument mounted on an instrument mount assembly;
reference numerals:
10-a first base;
21-a first supporting leg, 22-a second supporting leg, 23-a fixed cone and 24-a second rotary handle;
30-a second base, 31-an inner cavity;
41-universal ball, 42-connecting column, 43-positioning disk, 431-contact surface and 44-connecting rod;
50-instrument fixing components, 51-a shell, 52-a screw rod, 521-a left threaded part, 522-a right threaded part, 53-a clamping arm, 531-a clamping joint and 54-a first rotary handle;
60-locking rod body, 61-connector and 62-anti-slip protrusion;
71-a support, 711-a sliding groove, 72-a pressing unit, 721-a sliding block, 722-a pressing block, 723-a driven block, 724-a pressing surface, 725-a second wedge surface;
80-driving component, 81-guiding column, 82-lifting column, 83-driving block, 831-first wedge surface, 84-magnetic piece, 85-electromagnet, 86-first reset spring, 87-second reset spring.
Description of the embodiments
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
1-16, in one embodiment of the present invention, a quick center screed for a surveying instrument is provided that includes a first base 10, four first legs 21, a second base 30, a universal ball 41, a positioning disk 43, a connecting rod 44, an instrument securing assembly 50, and a locking mechanism.
Four first supporting legs 21 are all hinged on the first base 10, a second base 30 is arranged at the bottom of the first base 10, and a cylindrical inner cavity 31 is arranged in the second base 30. The universal ball 41 is in rotary fit with the bottom of the second base 30, part of the sphere of the universal ball 41 is exposed out of the second base 30 and is provided with a connecting column 42, and the sphere center of the universal ball 41 coincides with the axis of the inner cavity 31. The positioning disk 43 is installed at the bottom of the connecting column 42, the connecting rod 44 is installed at the bottom of the positioning disk 43, and the axis of the connecting rod 44, the axis of the connecting column 42 and the center of sphere of the universal ball 41 coincide. An instrument fixing assembly 50 is installed at the bottom of the connection rod 44, and the instrument fixing assembly 50 is used to fix a surveying instrument. The locking mechanism is used to lock the positioning disk 43 when the connecting rod 44 is in the vertical state, so that the connecting rod 44 is kept in the vertical state.
When using the device to center and level the surveying instrument, the user only needs to prop open and fix the four first legs 21 in the surveying area, and then mount the surveying instrument on the instrument fixing assembly 50. Due to the existence of the universal ball 41, under the action of gravity, the surveying instrument drives the connecting rod 44 to be kept still gradually in the vertical state, and in the process, the connecting rod 44 also adaptively drives the positioning disc 43 and the universal ball 41 to adjust the position state of the surveying instrument. Of course, a level (not shown in the drawings) is mounted on the instrument holder assembly 50 so as to facilitate the user's observation and determination of the vertical state of the connecting rod 44. In addition, determination of the vertical state of the connecting rod 44 may also be achieved by resting the connecting rod 44.
After the position of the positioning disc 43 is changed, the user locks the position of the positioning disc 43 by operating the locking mechanism, so that the universal ball 41 and the connecting rod 44 are locked, the connecting rod 44 is always kept in a vertical state, and the surveying instrument can be kept in a centered and leveling state.
The embodiment discloses a quick centering leveling device for surveying instrument, it is through the mutual cooperation of universal ball 41, positioning disk 43, connecting rod 44 and locking mechanical system, after installing surveying instrument on instrument fixed subassembly 50, owing to the existence of universal ball 41, under the effect of gravity, surveying instrument can drive connecting rod 44 and keep static under vertical state gradually, after locking mechanical system locks the position state of positioning disk 43, just can lock connecting rod 44 under vertical state, thereby just realized centering, the flattening operation to surveying instrument, in this way, shortened the user to the time of the centering of surveying instrument, flattening operation step before the survey, reduced the degree of difficulty to surveying instrument centering and flattening regulation. And, also be favorable to improving the accuracy of survey and drawing, realized the high-efficient use to surveying and mapping instrument.
In one embodiment, a contact surface 431 is formed on a surface of the positioning plate 43 facing the second base 30, and an axis of the connecting rod 44 is perpendicular to the contact surface 431. The locking mechanism comprises eighteen locking rod bodies 60, a propping assembly and a driving assembly 80, the eighteen locking rod bodies 60 are slidably matched on the inner side wall of the inner cavity 31 along the axial direction parallel to the inner cavity 31, the eighteen locking rod bodies 60 are arranged in an annular array, two ends of the locking rod bodies 60 extend out of the second base 30 respectively, and the bottom ends of the locking rod bodies 60 are in contact with the contact surface 431. The tightening assembly is disposed in the inner cavity 31, and the driving assembly 80 is used to drive the tightening assembly to synchronously tighten or loosen all the locking rod bodies 60.
When the connecting rod 44 is kept in the vertical state and the surveying instrument is kept in the centered and leveling state, the position of the positioning plate 43 may be slightly changed, and thus, the positioning plate 43 drives each locking rod 60 to adaptively lift (the lifting height of each locking rod 60 may be different, but the bottom end of the locking rod 60 is always in contact with the contact surface 431).
After the connecting rod 44 is in the vertical state, the position states of the positioning disc 43 and each locking rod body 60 are correspondingly determined, at this time, a user starts the driving assembly 80 to enable the abutting assembly to synchronously abut against all the locking rod bodies 60, and after the locking rod bodies 60 are tightly abutted and locked by the abutting assembly, the bottom ends of the locking rod bodies 60 are always in contact with the contact surface 431 of the positioning disc 43, so that the positioning disc 43 is limited by the eighteen locking rod bodies 60, the situation that the position states are changed cannot occur, and in this way, the universal ball 41 and the connecting rod 44 are locked, so that the connecting rod 44 is always kept in the vertical state, and the surveying instrument is always in the centering and leveling states.
After the plotting is finished, the user starts the driving assembly 80 to enable the abutting assembly to synchronously loosen all the locking rod bodies 60, and the positioning disc 43 can freely move together with the universal ball 41 and the connecting rod 44 after losing the limit of the locking rod bodies 60.
By designing the eighteen locking bars 60, the abutment assembly and the driving assembly 80 to lock the positioning plate 43, the contact surface 431 is always parallel to the horizontal plane, so that the connecting rod 44 is kept in a vertical state. Since the eighteen locking rod bodies 60 are arranged in an annular array, the design ensures the contact area 431 of the locking rod bodies 60 and the positioning disk 43, thereby improving the locking effect on the positioning disk 43.
Specifically, in one embodiment, the abutment assembly includes a support 71 and three abutment units 72, the support 71 is provided with three sliding grooves 711, the sliding grooves 711 extend along the radial direction of the inner cavity 31, and the three sliding grooves 711 are arranged in an annular array along the axis of the inner cavity 31. The number of the abutting units 72 corresponds to the number of the sliding grooves 711, and each abutting unit 72 is respectively slidably matched in the corresponding sliding groove 711. The abutting unit 72 comprises a sliding block 721, an abutting block 722 and a driven block 723, the sliding block 721 is in sliding fit in the sliding groove 711, the abutting block 722 is arranged outside the support 71 and connected with the sliding block 721, and one surface of the abutting block 722 facing the locking rod body 60 is provided with an arc-shaped abutting surface 724. The driven blocks 723 are provided on the slide 721, and the driving assembly 80 can synchronously push all the driven blocks 723 to slide the slide 721.
The driving assembly 80 includes a guide post 81, a lifting post 82, three driving blocks 83, a magnetic attraction member 84, an electromagnet 85, a first return spring 86, and a plurality of return units. The guide post 81 is arranged on the support 71, the lifting post 82 is movably arranged on the guide post 81 in a penetrating way, and the axis of the lifting post 82 and the axis of the guide post 81 are coincident with the axis of the inner cavity 31. The three driving blocks 83 are respectively arranged on the outer side wall of the lifting column 82, the number of the driving blocks 83 corresponds to that of the driven blocks 723, a first wedge-shaped surface 831 is arranged on one side, facing away from the lifting column 82, of the driving blocks 83, a second wedge-shaped surface 725 is arranged on one side, facing towards the driving blocks 83, of the driven blocks 723, and the second wedge-shaped surface 725 is matched with the first wedge-shaped surface 831. The magnetic attraction piece 84 is arranged at the top of the lifting column 82, the electromagnet 85 is arranged at the top of the inner cavity 31, and the electromagnet 85 can magnetically repel the magnetic attraction piece 84. The first return springs 86 are used for applying elastic force to the lifting column 82 moving towards the electromagnet 85, the number of the return units corresponds to that of the abutting units 72, the return units comprise two second return springs 87, and two ends of each second return spring 87 are respectively connected with the cavity wall of the sliding groove 711 and one side of the sliding block 721, which faces away from the abutting block 722.
When the vertical state of the connecting rod 44 needs to be locked, a user energizes the electromagnet 85 by starting the driving component 80 (for example, a wireless remote controller is adopted, a battery and a circuit for supplying power to the electromagnet 85 can be installed in the first base 10, the technology is not described in detail herein), after the electromagnet 85 is energized, under the action of magnetic repulsion force, the electromagnet 85 can drive the magnetic attraction piece 84 to drive the lifting column 82 to move along the guide column 81 towards the support 71 through the magnetic repulsion force, and in the process, the lifting column 82 can compress the first return spring 86.
While the three driving blocks 83 move along the lifting column 82, the first wedge surface 831 on the driving block 83 pushes the second wedge surface 725 on the driven block 723, so that the driven block 723 pushes the sliding block 721 and the abutting block 722 to move along the radial direction of the inner cavity 31 (away from the axis of the inner cavity 31), and during this process, the second return spring 87 is in a stretched state. When each abutting block 722 abuts against the corresponding six locking rod bodies 60, the universal ball 41 and the connecting rod 44 are locked, so that the surveying instrument is always in a centered and leveling state.
After the plotting is completed, the user operates the driving unit 80 to turn off the electromagnet 85, so that the magnetic repulsive force between the electromagnet 85 and the magnetic attraction member 84 is eliminated, and the lifting column 82 is pushed to move toward the electromagnet 85 under the action of the elastic force of the first return spring 86. Since the positions of the driving block 83 and the first wedge surface 831 are changed, the driven block 723, the slider 721 and the abutting block 722 are moved toward one side close to the axis of the inner cavity 31 by the second return spring 87, so that the abutting surface 724 is separated from the six corresponding locking lever bodies 60, and thus the locking of the positioning disk 43 by the eighteen locking lever bodies 60 is released, and the positioning disk 43 can freely move together with the universal ball 41 and the connecting rod 44.
In one embodiment, the locking rod 60 and the second base 30 do not rotate relatively, the bottom end of the locking rod 60 is provided with a hemispherical connector 61, and the connector 61 contacts with the contact surface 431. The locking rod body 60 is provided with a non-slip protrusion 62 on one side facing away from the inner side wall of the inner cavity 31, the abutting block 722 can abut against the non-slip protrusion 62, and an avoidance space for lifting the locking rod body 60 is formed between the first base 10 and the second base 30. The design of the connector 61 can promote the smoothness of the contact between the bottom end of the locking rod body 60 and the contact surface 431, and the design of the anti-slip protrusion 62 can promote the friction force between the abutting surface 724 and the locking rod body 60, so as to avoid the sliding condition when the locking rod body 60 is abutted.
In one embodiment, the instrument fixing assembly 50 includes a housing 51, a screw rod 52, two clamping arms 53 and a first knob 54, the housing 51 has a rectangular parallelepiped structure, the bottom of the housing 51 is disposed in an open manner, and the center of the top of the housing 51 is connected to the connecting rod 44. The screw 52 is rotatably provided in the housing 51, the screw 52 has a left screw portion 521 and a right screw portion 522 having opposite screw threads, and the first knob 54 is provided outside the housing 51 and connected to the screw 52. The two clamping arms 53 are respectively in threaded fit on the left threaded portion 521 and the right threaded portion 522, the two clamping arms 53 are symmetrically arranged along the axis of the connecting rod 44, the clamping arms 53 extend out of the shell 51, the clamping arms 53 and the screw rod 52 do not rotate relatively, and clamping connectors 531 are respectively arranged on opposite side walls of the two clamping arms 53.
Referring to fig. 15, two mounting holes are formed in the surveying instrument, when the surveying instrument is mounted, a user drives the screw rod 52 to rotate by rotating the first rotary handle 54, and as the two clamping arms 53 are respectively in threaded fit with the left threaded portion 521 and the right threaded portion 522, the two clamping arms 53 can move close to each other, and when the clamping arms 53 clamp the surveying instrument and the clamping connector 531 is clamped into the mounting hole in the surveying instrument, the surveying instrument is mounted. A level (not shown) is mounted on the housing 51 and when the bubble in the level is centered, the user can determine that the connecting rod 44 is now in an upright position.
In one embodiment, a second support leg 22 is arranged at one end of the first support leg 21 far away from the first base 10, the second support leg 22 is in telescopic fit with the first support leg 21, a fixed cone 23 is arranged at one end of the second support leg 22, and a second rotary handle 24 for locking the second support leg 22 is in threaded fit on the first support leg 21.
In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
Claims (4)
1. Quick centering and leveling device for surveying instrument, which is characterized by comprising:
a first base;
a plurality of first legs hinged to the first base;
the second base is arranged at the bottom of the first base, and a cylindrical inner cavity is arranged in the second base;
the universal ball is in running fit with the bottom of the second base, part of the ball body of the universal ball is exposed out of the second base and is provided with a connecting column, and the ball center of the universal ball is overlapped with the axis of the inner cavity;
the positioning disc is arranged at the bottom of the connecting column;
the connecting rod is arranged at the bottom of the positioning disc, and the axis of the connecting rod, the axis of the connecting column and the spherical center of the universal ball are overlapped;
the instrument fixing component is arranged at the bottom of the connecting rod and is used for fixing a surveying instrument; and
a locking mechanism for locking the positioning disk when the connecting rod is in a vertical state so as to keep the connecting rod in a vertical state;
a contact surface is formed on one surface of the positioning disc, facing the second base, and the axis of the connecting rod is perpendicular to the contact surface; the locking mechanism comprises a plurality of locking rod bodies, a propping assembly and a driving assembly, the locking rod bodies are in sliding fit on the inner side wall of the inner cavity along the axial direction parallel to the inner cavity, the locking rod bodies are arranged in an annular array, two ends of the locking rod bodies extend out of the second base respectively, and the bottom ends of the locking rod bodies are in contact with the contact surface;
the abutting assembly is arranged in the inner cavity, and the driving assembly is used for driving the abutting assembly to synchronously abut against or loosen all the locking rod bodies;
the propping assembly comprises a support and a plurality of propping units, wherein a plurality of sliding grooves are formed in the support, extend along the radial direction of the inner cavity, and are arranged in an annular array along the axis of the inner cavity; the number of the abutting units corresponds to that of the sliding grooves, and each abutting unit is respectively in sliding fit with the corresponding sliding groove;
the abutting unit comprises a sliding block, an abutting block and a driven block, wherein the sliding block is in sliding fit in the sliding groove, the abutting block is arranged outside the support and connected with the sliding block, and an arc-shaped abutting surface is arranged on one surface of the abutting block, which faces the locking rod body; the driven blocks are arranged on the sliding blocks, and the driving assembly can synchronously push all the driven blocks so as to enable the sliding blocks to slide;
the driving assembly comprises a guide column, a lifting column, a plurality of driving blocks, a magnetic attraction piece, an electromagnet, a first reset spring and a plurality of reset units, wherein the guide column is arranged on the support, the lifting column is movably arranged on the guide column in a penetrating mode, and the axis of the lifting column and the axis of the guide column are overlapped with the axis of the inner cavity; the driving blocks are respectively arranged on the outer side wall of the lifting column, the number of the driving blocks corresponds to that of the driven blocks, and a first wedge-shaped surface is arranged on one side, away from the lifting column, of the driving blocks;
the magnetic attraction piece is arranged at the top of the lifting column, the electromagnet is arranged at the top of the inner cavity, and the electromagnet can magnetically repel the magnetic attraction piece; the first return spring is used for applying elastic force to the lifting column, wherein the elastic force moves towards one side of the electromagnet; the number of the reset units corresponds to that of the abutting units, the reset units comprise two second reset springs, and two ends of each second reset spring are respectively connected with the cavity wall of the sliding chute and one side of the sliding block, which is away from the abutting block;
and a second wedge-shaped surface is arranged on one side of the driven block, which faces the driving block, and is matched with the first wedge-shaped surface.
2. The rapid centering and leveling device for a surveying instrument according to claim 1, wherein the locking rod body and the second base do not rotate relatively, a hemispherical connector is arranged at the bottom end of the locking rod body, and the connector is in contact with the contact surface;
the locking rod body is provided with an anti-slip protrusion at one side away from the inner side wall of the inner cavity, and the abutting block can be abutted against the anti-slip protrusion;
an avoidance space which can be used for lifting the locking rod body is formed between the first base and the second base.
3. The rapid centering and leveling device for a surveying instrument according to claim 1, wherein the instrument securing assembly comprises:
the shell is of a cuboid structure, the bottom of the shell is in an open arrangement, and the center of the top of the shell is connected with the connecting rod;
the screw rod is rotatably arranged in the shell and is provided with a left threaded part and a right threaded part with opposite screw threads;
the two clamping arms are respectively in threaded fit with the left threaded part and the right threaded part, are symmetrically arranged along the axis of the connecting rod, extend out of the shell, do not rotate relative to the screw rod, and are respectively provided with clamping connectors on the opposite side walls; and
the first rotary handle is arranged outside the shell and connected with the screw rod.
4. The rapid centering and leveling device for a surveying instrument according to claim 1, wherein a second supporting leg is arranged at one end, far away from the first base, of the first supporting leg, the second supporting leg is in telescopic fit with the first supporting leg, a fixing cone is arranged at one end of the second supporting leg, and a second rotating handle used for locking the second supporting leg is in threaded fit with the first supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310419690.3A CN116336330B (en) | 2023-04-18 | 2023-04-18 | Quick centering and leveling device for surveying instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310419690.3A CN116336330B (en) | 2023-04-18 | 2023-04-18 | Quick centering and leveling device for surveying instrument |
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| CN116336330A CN116336330A (en) | 2023-06-27 |
| CN116336330B true CN116336330B (en) | 2024-01-05 |
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| CN202310419690.3A Active CN116336330B (en) | 2023-04-18 | 2023-04-18 | Quick centering and leveling device for surveying instrument |
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| CN116336330A (en) | 2023-06-27 |
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