CN219510501U - Centering and leveling device for engineering surveying instrument - Google Patents

Abstract

The utility model provides a centering and leveling device for engineering surveying and mapping instruments. The universal ball is in running fit on the first base, and part of the ball body of the universal ball stretches into the abdication groove and is exposed out of the top surface of the first base. The connecting rod is connected with the universal ball, and the axis of connecting rod and the centre of sphere coincidence of universal ball, instrument fixed establishment are used for fixed surveying instrument, and locking mechanical system is used for locking the universal ball to prevent the universal ball to rotate. After the universal ball is locked by the locking mechanism, the connecting rod is locked in a vertical state, and centering and leveling operations of the surveying instrument are further achieved, so that the step time of centering and leveling operations of the surveying instrument before surveying by a user is shortened, and the difficulty of centering and leveling adjustment of the surveying instrument is reduced.

Description

Centering and leveling device for engineering surveying instrument

Technical Field

The utility model relates to the technical field of engineering surveying and mapping instrument frames, in particular to a centering and leveling device for an engineering surveying and mapping 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

In view of the defects in the prior art, the utility model aims to provide a centering and leveling device for an engineering 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 utility model provides a centering and leveling device for an engineering surveying instrument, comprises a first base, wherein the bottom of the first base is upwards sunken to form a yielding groove; the first supporting legs are respectively hinged to the first base; the universal ball is in running fit with the first base, and part of the ball body of the universal ball stretches into the abdication groove and is exposed out of the top surface of the first base; the top of the connecting rod stretches into the yielding groove and is connected with the universal ball, and the axis of the connecting rod is coincident with the center of the universal ball; the instrument fixing mechanism is arranged at the bottom of the connecting rod and is used for fixing a surveying instrument; and the locking mechanism is arranged on the first base and used for locking the universal ball so as to prevent the universal ball from rotating.

Preferably, the locking mechanism comprises: a second base on the first base; the locking block is arranged between the second base and the first base, a contact groove is formed in the bottom of the locking block in an upward concave mode, and the outline of the contact groove is matched with the outline of the universal ball; and the lifting driving assembly is used for driving the locking block to do lifting action so as to enable the contact groove to prop against or separate from the universal ball.

Preferably, an inner cavity is arranged in the second base, and the lifting driving assembly comprises: the two guide rods are respectively arranged in the inner cavity, and movably penetrate through the bottom of the inner cavity and are connected with the locking piece; the connecting blocks are arranged in the inner cavity and are respectively connected with the two guide rods; a return unit for applying an elastic force to the connection rod to disengage the contact groove from the universal ball; the magnetic attraction piece is arranged on one side of the connecting block, which faces the locking piece; and the electromagnet is arranged at the bottom of the inner cavity and can magnetically attract the magnetic attraction piece.

Preferably, the reset unit comprises two reset springs, each reset spring is arranged outside a corresponding guide rod in a penetrating mode, and two ends of each reset spring are respectively connected with the connecting block and the cavity bottom of the inner cavity.

Preferably, the instrument fixing mechanism includes: 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 rotary handle is arranged outside the shell and connected with the screw rod; and the two clamping arms are respectively in threaded fit with the left threaded part and the right threaded part, the two clamping arms are symmetrically arranged along the axis of the connecting rod, the clamping arms extend out of the shell, the clamping arms and the screw rod do not rotate relatively, and clamping connectors are respectively arranged on the opposite side walls of the two clamping arms.

Preferably, one end of the first supporting leg far away from the first base is in telescopic fit with a second supporting leg, a locking knob used for locking the second supporting leg is in threaded fit with the first supporting leg, and a fixing pin is arranged at one end of the second supporting leg.

The utility model has the beneficial effects that:

the utility model discloses a centering and leveling device for engineering surveying and mapping instruments, which is characterized in that after the surveying and mapping instruments are mounted on an instrument fixing mechanism through mutual matching of universal balls, connecting rods and locking mechanisms, the universal balls are locked by the locking mechanisms, the universal balls cannot freely rotate, so that the connecting rods are locked in the vertical state, centering and leveling operations of the surveying and mapping instruments are realized, the time of centering and leveling operation steps of the surveying and mapping instruments before surveying and mapping by a user is shortened, and the difficulty in centering and leveling adjustment of the surveying and mapping instruments is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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 centering and leveling device for an engineering surveying instrument according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the first base, ball and connecting rod mated configuration;

FIG. 3 is a schematic view of another view angle of FIG. 2;

FIG. 4 is a schematic view of the structure of the inside of the second base;

FIG. 5 is a schematic view of the structure of the lock block;

FIG. 6 is a schematic cross-sectional view of the locking block locking the ball;

FIG. 7 is a schematic view of the structure of the instrument fixing mechanism;

FIG. 8 is a schematic view of another view angle of FIG. 7;

FIG. 9 is a schematic structural view of a surveying instrument;

FIG. 10 is a schematic view of a surveying instrument mounted on an instrument mount;

reference numerals:

10-a first base, 11-a yielding groove;

20-a first supporting leg, 21-a second supporting leg, 22-a locking knob and 23-a fixed pin;

30-universal ball;

40-connecting rods;

50-instrument fixing mechanism, 51-shell, 52-screw rod, 521-left screw thread part, 522-right screw thread part, 53-rotary handle, 54-clamp arm and 55-clamp joint;

60-locking mechanism, 61-second base, 611-inner cavity, 62-locking block, 621-contact groove, 63-guide rod, 64-connecting block, 65-reset spring, 66-magnetic piece, 67-electromagnet;

70-level.

Detailed Description

Embodiments of the technical scheme of the present utility model 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 utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

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 utility model belongs.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "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 orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

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 utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present utility model, unless explicitly specified 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, 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.

1-10, in one embodiment of the present utility model, a centering and leveling device for an engineering surveying instrument is provided, comprising a first base 10, four first legs 20, a universal ball 30, a connecting rod 40, an instrument securing mechanism 50, and a locking mechanism 60.

The bottom of the first base 10 is recessed upward to form a relief groove 11, and four first legs 20 are respectively hinged to the first base 10. The universal ball 30 is rotatably matched on the first base 10, and part of the ball body of the universal ball 30 extends into the yielding groove 11 and is exposed out of the top surface of the first base 10. The top of the connecting rod 40 stretches into the abdication groove 11 and is connected with the universal ball 30, the axis of the connecting rod 40 coincides with the sphere center of the universal ball 30, the instrument fixing mechanism 50 is arranged at the bottom of the connecting rod 40, and the instrument fixing mechanism 50 is used for fixing a surveying instrument. A locking mechanism 60 is provided on the first base 10, and the locking mechanism 60 is used for locking the universal ball 30 to prevent the universal ball 30 from rotating.

When using the device to center and level the surveying instrument, the user only needs to first prop open and fix the four first support legs 20 in the surveying area, and then mount the surveying instrument on the instrument fixing mechanism 50. Because of the universal ball 30, under the action of gravity, the surveying instrument drives the connecting rod 40 to be kept still gradually in the vertical state, and of course, the instrument fixing mechanism 50 is provided with the mounting level 70, so that a user can observe and determine the vertical state of the connecting rod 40 conveniently. In this process, the connecting rod 40 also adaptively drives the universal ball 30 to adaptively rotate, so that the universal ball 30 can adjust its position.

After determining that the connecting rod 40 is in the vertical state, a user locks the universal ball 30 by operating the locking mechanism 60, and when the universal ball 30 cannot rotate freely, the locking of the connecting rod 40 is realized, so that the connecting rod 40 is always kept in the vertical state, and further, the surveying instrument can be kept in the centered and leveling state.

The embodiment discloses a centering leveling device for engineering surveying instrument, it is through the mutual cooperation of universal ball 30, connecting rod 40 and locking mechanical system 60, after installing surveying instrument on instrument fixed establishment 50, owing to the existence of universal ball 30, under the effect of gravity, surveying instrument can drive connecting rod 40 and keep static under vertical state gradually, after locking mechanical system 60 locks universal ball 30, universal ball 30 just can't carry out free rotation, thereby just lock connecting rod 40 under vertical state, and then realized centering, the flattening operation to surveying instrument, in this way, just shortened the user before the survey to the step time of centering, the flattening operation of surveying instrument, reduced the degree of difficulty to surveying instrument centering, flattening regulation.

In one embodiment, the locking mechanism 60 includes a second base 61, a locking piece 62 and a lifting driving assembly, the second base 61 is mounted on the first base 10, the locking piece 62 is disposed between the second base 61 and the first base 10, a contact groove 621 is formed by upwardly sinking the bottom of the locking piece 62, and the contour of the contact groove 621 matches with the outer contour of the universal ball 30. The lifting driving component is used for driving the locking block 62 to perform lifting action so that the contact groove 621 abuts against or breaks away from the universal ball 30.

After the connecting rod 40 is in the vertical state, the position state of the universal ball 30 is correspondingly determined, at this time, a user starts the lifting driving assembly to enable the locking block 62 to abut against the universal ball 30, and after the contact groove 621 is pressed on the spherical surface of the universal ball 30, the universal ball 30 is locked and cannot rotate freely, so that the universal ball 30 and the connecting rod 40 are locked, the connecting rod 40 is always kept in the vertical state, and the surveying instrument is always in the centering and leveling state. After the surveying and mapping is finished, the user can disengage the locking piece 62 from the universal ball 30 by starting the lifting driving assembly, and the universal ball 30 can freely move together with the connecting rod 40 after losing the limit of the locking piece 62, so that the observing position of the surveying and mapping instrument can be conveniently transposed.

When the connecting rod 40 is kept in a vertical state and the surveying instrument is kept in a centered and leveling state, the universal ball 30 is locked through the contact groove 621, so that the locking effect of the universal ball 30 is ensured, and the surveying instrument can be kept in the centered and leveling state all the time.

Specifically, in one embodiment, an inner cavity 611 is disposed in the second base 61, the lifting driving assembly includes two guide rods 63, a connection block 64, a reset unit, a magnetic attraction member 66 and an electromagnet 67, the two guide rods 63 are respectively disposed in the inner cavity 611, the guide rods 63 movably penetrate through the bottom of the inner cavity 611 and are connected with the locking piece 62, the connection block 64 is disposed in the inner cavity 611, and the connection block 64 is respectively connected with the two guide rods 63. The reset unit is used for applying elastic force to the connecting rod 40 so as to enable the contact groove 621 to be separated from the universal ball 30, and comprises two reset springs 65, each reset spring 65 is arranged outside a corresponding guide rod 63 in a penetrating mode, and two ends of each reset spring 65 are respectively connected with the connecting block 64 and the cavity bottom of the inner cavity 611. The magnetic attraction piece 66 is arranged on one side of the connecting block 64 facing the locking piece 62, the electromagnet 67 is arranged at the bottom of the inner cavity 611, and the electromagnet 67 can magnetically attract the magnetic attraction piece 66.

When the universal ball 30 needs to be locked, a user can energize the electromagnet 67 by starting the lifting driving assembly (for example, a wireless remote controller is adopted, a battery and a circuit for supplying power to the electromagnet 67 can be installed in the first base 10, the technology is not described in detail in the prior art), after the electromagnet 67 is energized, the electromagnet 67 magnetically attracts the magnetic attraction piece 66 under the action of magnetic attraction force, so that the magnetic attraction piece 66 drives the connecting block 64 to drive the two guide rods 63 and the locking block 62 to move rapidly, and after the contact groove 621 of the locking block 62 is pressed on the spherical surface of the universal ball 30, the locking of the position states of the universal ball 30 and the connecting rod 40 is realized, and the surveying instrument is always in a centered and leveling state. During this process, the connection block 64 compresses the two return springs 65.

After the plotting is completed, the user operates the lifting driving assembly to turn off the electromagnet 67, and the magnetic attraction force between the electromagnet 67 and the magnetic attraction piece 66 is lost, so that under the action of the elastic force of the return spring 65, the connecting block 64 is pushed to move towards the cavity top of the inner cavity 611, and the contact groove 621 is separated from the spherical surface of the universal ball 30, so that the locking of the locking piece 62 on the universal ball 30 is released.

In one embodiment, the instrument fixing mechanism 50 includes a housing 51, a screw rod 52, a knob 53 and two clamp arms 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 40. The screw 52 is rotatably provided in the housing 51, the screw 52 has a left screw 521 and a right screw 522 with opposite screw directions, and the knob 53 is provided outside the housing 51 and connected to the screw 52. The two clamping arms 54 are respectively in threaded fit on the left threaded portion 521 and the right threaded portion 522, the two clamping arms 54 are symmetrically arranged along the axis of the connecting rod 40, the clamping arms 54 extend out of the shell 51, the clamping arms 54 and the screw rod 52 do not rotate relatively, and clamping connectors 55 are respectively arranged on opposite side walls of the two clamping arms 54.

Referring to fig. 9, two mounting holes are formed in the surveying instrument, when the surveying instrument is mounted, a user rotates the screw rod 52 by rotating the first rotary handle 53, and since the two clamping arms 54 are respectively screwed on the left threaded portion 521 and the right threaded portion 522, the two clamping arms 54 can move close to each other and the moving distance of the clamping arms 54 is the same, when the clamping arms 54 clamp the surveying instrument and the clamping heads 55 are clamped into the mounting holes of the surveying instrument, the mounting of the surveying instrument is realized. The level 70 is mounted on the housing 51 and when the bubble in the level 70 is centered, the user can determine that the connecting rod 40 is now in an upright position.

In one embodiment, in order to increase the application range of the device and facilitate folding the device, a second support leg 21 is telescopically matched with one end of the first support leg 20 away from the first base 10, a locking knob 22 for locking the second support leg 21 is in threaded fit with the first support leg 20, and a fixing pin 23 is arranged at one end of the second support leg 21.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model 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 utility model, and not for limiting the same; although the utility model 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 utility model, and are intended to be included within the scope of the appended claims and description.

Claims (6)

1. A centering and leveling device for an engineering surveying instrument, comprising:

the bottom of the first base is upwards sunken to form a yielding groove;

the first supporting legs are respectively hinged to the first base;

the universal ball is in running fit with the first base, and part of the ball body of the universal ball stretches into the abdication groove and is exposed out of the top surface of the first base;

the top of the connecting rod stretches into the yielding groove and is connected with the universal ball, and the axis of the connecting rod is coincident with the center of the universal ball;

the instrument fixing mechanism is arranged at the bottom of the connecting rod and is used for fixing a surveying instrument; and

and the locking mechanism is arranged on the first base and used for locking the universal ball so as to prevent the universal ball from rotating.

2. The centering and leveling apparatus for an engineering surveying instrument according to claim 1, wherein the locking mechanism comprises:

a second base on the first base;

the locking block is arranged between the second base and the first base, a contact groove is formed in the bottom of the locking block in an upward concave mode, and the outline of the contact groove is matched with the outline of the universal ball; and

and the lifting driving assembly is used for driving the locking block to do lifting action so as to enable the contact groove to prop against or separate from the universal ball.

3. The centering and leveling apparatus for an engineering surveying instrument according to claim 2, wherein an inner cavity is provided in the second base, and the lifting drive assembly comprises:

the two guide rods are respectively arranged in the inner cavity, and movably penetrate through the bottom of the inner cavity and are connected with the locking piece;

the connecting blocks are arranged in the inner cavity and are respectively connected with the two guide rods;

a return unit for applying an elastic force to the connection rod to disengage the contact groove from the universal ball;

the magnetic attraction piece is arranged on one side of the connecting block, which faces the locking piece; and

the electromagnet is arranged at the bottom of the inner cavity and can magnetically attract the magnetic attraction piece.

4. The centering and leveling device for an engineering surveying instrument according to claim 3, wherein the reset unit comprises two reset springs, each reset spring is arranged outside a corresponding guide rod in a penetrating mode, and two ends of each reset spring are respectively connected with the connecting block and the cavity bottom of the inner cavity.

5. The centering and leveling apparatus for an engineering surveying instrument according to claim 1, wherein the instrument securing mechanism 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 rotary handle is arranged outside the shell and connected with the screw rod; and

the two clamping arms are respectively in threaded fit with the left threaded part and the right threaded part, the two clamping arms are symmetrically arranged along the axis of the connecting rod, the clamping arms extend out of the shell, the clamping arms and the screw rod do not rotate relatively, and clamping connectors are respectively arranged on the opposite side walls of the two clamping arms.

6. The centering and leveling device for an engineering surveying instrument according to claim 1, wherein a second supporting leg is telescopically matched at one end of the first supporting leg far away from the first base, a locking knob for locking the second supporting leg is in threaded fit on the first supporting leg, and a fixing pin is arranged at one end of the second supporting leg.