CN212179913U

CN212179913U - A centering leveling device for engineering survey

Info

Publication number: CN212179913U
Application number: CN202021305913.1U
Authority: CN
Inventors: 刘铁
Original assignee: Jiangxi Water Resources Institute
Current assignee: Jiangxi Water Resources Institute
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-12-18
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a centering leveling device for engineering measurement, which comprises a base plate, wherein a mounting frame is arranged at the middle position on the base plate, a glass panel is fixedly arranged on the mounting frame, a central level bubble is fixedly arranged at the central position on the base plate, the central level bubble is positioned under the mounting frame, a side level bubble is arranged at the side edge of the base plate, a foot rest is movably arranged at the bottom of the base plate, a tail shaft is movably connected with the base plate, the top wall of the inner cavity of a rotary drum is provided with a rotary hole, a fine screw rod is inserted in the rotary hole, a nut is fixedly arranged on the inner wall of the rotary hole, the nut is sleeved on the fine screw rod, the lower end of the fine screw rod is fixedly connected with a sleeve, the upper end of the sleeve is positioned in the rotary drum, an extension rod is inserted at the lower end, the bottom plate can be quickly, accurately and efficiently adjusted to be in a horizontal state.

Description

A centering leveling device for engineering survey

Technical Field

The utility model relates to an engineering survey technical field especially relates to a centering leveling device for engineering survey.

Background

The ground at the position where the measurement is often uneven in engineering measurement, outdoor engineering measurement instruments such as theodolites and levels which are often used in engineering have high requirements on levelness and centering performance, so that the instruments need to be centered and leveled in advance in the measurement process, the center of the instrument and the marking center of a station measurement point at the bottom surface are on the same plumb line, and the accuracy of measured data is guaranteed.

At present, most measuring instruments often adopt the length of each strut of an adjusting tripod to adjust whether the instrument is horizontal in the centering process, and a common method for changing the length of the strut adopts a telescopic rod or an undercarriage, so that the precision control cannot be achieved, the instrument always fluctuates up and down after being close to the horizontal in the leveling process, the adjustment efficiency is low, and the time is wasted.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the centering and leveling device for engineering measurement has the advantages of poor adjustment precision, obvious up-down fluctuation and low efficiency, and is provided for realizing quick, accurate and efficient adjustment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a centering leveling device for engineering measurement comprises a base plate, wherein a mounting frame is fixedly arranged at the middle position on the base plate, a glass panel is fixedly arranged on the mounting rack, a central level bubble is fixedly arranged at the central position on the bottom plate, the central level bubble is positioned under the mounting rack, the side level bubble is arranged at the side of the bottom plate, the foot rest is movably arranged at the bottom of the bottom plate and comprises a tail shaft which is movably connected with the bottom plate, the top wall of the inner cavity of the rotary drum is provided with a rotary hole, a fine screw rod is inserted in the rotary hole, the inner wall of the rotary hole is fixedly provided with a nut, the nut is sleeved on the fine screw rod in a threaded manner, the lower end of the fine screw rod is fixedly connected with a sleeve, the upper end of the sleeve is located in the rotary drum, the lower end of the sleeve is inserted with the extension rod, the lower end of the rotary drum is provided with the first lock catch, and the lower end of the sleeve is provided with the second lock catch.

Preferably, the outer ring of the rotary drum is provided with a thread ring.

Preferably, the threaded ring and the rotary drum are integrally formed.

Preferably, a pin shaft hole is formed in the upper end of the tail shaft, a pin shaft is inserted into the pin shaft hole, and the upper end of the tail shaft is connected with the bottom plate through the pin shaft.

Preferably, the upper end of the rotating drum is provided with a mounting hole, a bearing is fixedly mounted in the mounting hole, and the lower end of the tail shaft is connected with the rotating drum through the bearing.

Preferably, the upper end and the lower end of the rotary drum are provided with sealing rings.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, provide a centering leveling device for engineering survey, with the instrument installation on centering leveling device's glass panels in engineering survey, roughly estimate the position deviation earlier, observe each air level, through the length of adjusting each foot rest of extension rod length quick adjustment, make and be close after the centering state, lock the second hasp, rotate the fillet on the rotary drum, the inside meticulous screw rod of fine setting rotary drum stretches out length, meticulous adjustment foot rest length is located central point and puts, locks first hasp until each air level.

The use of telescopic link makes the foot rest can stretch out and draw back to required length fast, and quick adjustment position is to being close required state, adjusts meticulous screw rod length for the foot rest steadily reaches required length fast, and final two kinds of regulation methods's cooperation is used, makes the bottom plate adjust to the horizontality fast, accurate, efficient.

Drawings

Fig. 1 is a schematic structural view of a centering leveling device for engineering measurement according to the present invention;

fig. 2 is a schematic structural view of a foot rest of a centering and leveling device for engineering measurement according to the present invention;

fig. 3 is a front view of a foot rest of the centering and leveling device for engineering measurement according to the present invention.

In the figure: the device comprises a base plate 1, a tail shaft 2, a rotating drum 3, a nut 4, a fine screw rod 5, a sleeve 6, an extension rod 7, a pin shaft hole 8, a sealing ring 9, a bearing 10, a first lock catch 11, a second lock catch 12, a central air level 13, a side air level 14, a mounting rack 15, a glass panel 16, a rotating hole 17 and a thread ring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a centering leveling device for engineering measurement comprises a base plate 1, a mounting frame 15 is fixedly mounted at the middle position on the base plate 1, a glass panel 16 is fixedly mounted on the mounting frame 15, a central level bubble 13 is fixedly mounted at the central position on the base plate 1, the central level bubble 13 is positioned under the mounting frame 15, a side level bubble 14 is mounted at the side edge of the base plate 1, a foot rest is rotatably mounted at the bottom of the base plate 1 and comprises a tail shaft 2, the tail shaft 2 is movably connected with the base plate 1, the lower end of the tail shaft 2 is rotatably connected with a rotary drum 3, a rotary hole 17 is formed in the top wall of an inner cavity of the rotary drum 3, a fine screw 5 is inserted in the rotary hole 17, a nut 4 is fixedly mounted on the inner wall of the rotary hole 17, the nut 4 is sleeved on the fine screw 5 in a threaded manner, a, first hasp 11 is installed to 3 lower extremes of rotary drum, and second hasp 12 is installed to 6 lower extremes of sleeve, and the telescopic link makes the foot rest be close to required state, adjusts 5 lengths of meticulous screw rod for the foot rest steadily reaches required length fast, and the cooperation of final two kinds of regulation modes is used, makes bottom plate 1 quick, accurate, efficient adjustment to the horizontality.

In the utility model, the outer ring of the rotary drum 3 is provided with the thread ring 18, the thread ring 18 and the rotary drum 3 are integrally formed, the use of the thread ring 18 increases the friction of the outer ring of the rotary drum 3, and the integral structure improves the stability of the structure of the rotary drum 3;

the upper end of the rotary drum 3 is provided with a mounting hole, a bearing 10 is fixedly arranged in the mounting hole, and the lower end of the tail shaft 2 is connected with the rotary drum 3 through the bearing 10, so that the stability of the rotary drum 3 in the rotating process is improved, and the rotary drum can rotate quickly to enable the fine screw 5 to reach the required length;

sealing rings 9 are installed at the upper end and the lower end of the rotary drum 3, so that the internal structure of the rotary drum 3 is prevented from being polluted by external water, acid and various impurity and dust, and the precision of the internal structure is guaranteed.

The utility model discloses in, install the instrument on centering leveling device's glass panels 16 in engineering survey, roughly estimate visual position deviation earlier, survey central air level 13 and side air level 14, length through adjusting 7 length quick adjustment each foot rests of extension rod, make and be close behind the centering state, locking second hasp 12, the helicoid 18 on the rotary drum 3 rotates, the inside meticulous screw rod 5 of fine adjustment rotary drum stretches out length, meticulous adjustment foot rest length is located central point to central air level 13 and side air level 14, lock first hasp 11, the cooperation of final two kinds of regulative modes is used, make bottom plate 1 quick, it is accurate, efficient adjustment to the horizontality.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a centering leveling device for engineering survey, includes bottom plate (1), intermediate position fixed mounting has mounting bracket (15) on bottom plate (1), fixed mounting has glass panels (16) on mounting bracket (15), central position fixed mounting has central air level (13) on bottom plate (1), central air level (13) are located mounting bracket (15) under, side air level (14) are installed to bottom plate (1) side, bottom plate (1) bottom movable mounting has the foot rest, its characterized in that, the foot rest includes tail shaft (2), tail shaft (2) and bottom plate (1) swing joint, tail shaft (2) lower extreme rotates and is connected with rotary drum (3), rotary drum (3) inner chamber roof is equipped with rotation hole (17), the interpolation of rotation hole (17) is equipped with meticulous screw rod (5), rotation hole (17) inner wall fixed mounting has nut (4), nut (4) thread bush is established on meticulous screw rod (5), meticulous screw rod (5) lower extreme fixedly connected with sleeve (6), sleeve (6) upper end is located rotary drum (3), sleeve (6) lower extreme is inserted and is equipped with extension rod (7), first hasp (11) is installed to rotary drum (3) lower extreme, second hasp (12) is installed to sleeve (6) lower extreme.

2. A centring and levelling device for engineering measurements, according to claim 1, characterized in that the outer ring of the drum (3) is fitted with a threaded ring (18).

3. A centring and levelling device for engineering measurements, according to claim 2, characterized in that the threaded ring (18) is formed integrally with the drum (3).

4. The centering and leveling device for engineering measurement as claimed in claim 1, wherein a pin shaft hole (8) is formed in the upper end of the tail shaft (2), a pin shaft is inserted into the pin shaft hole (8), and the upper end of the tail shaft (2) is connected with the base plate (1) through the pin shaft.

5. The centering and leveling device for engineering measurement as claimed in claim 1, wherein a mounting hole is formed in the upper end of the rotating drum (3), a bearing (10) is fixedly mounted in the mounting hole, and the lower end of the tail shaft (2) is connected with the rotating drum (3) through the bearing (10).

6. A centring and levelling device for engineering measurements according to claim 1, characterised in that the drum (3) is fitted with sealing rings (9) at both its upper and lower ends.