CN210719154U

CN210719154U - Level bar device

Info

Publication number: CN210719154U
Application number: CN201922230771.0U
Authority: CN
Inventors: 王栋; 朱振华; 唐廷显; 金五一
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-06-09
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses a level bar device, including bracket and frame level bar, its characterized in that: the bracket comprises a cross rod, a support and an adjusting screw; the support is fixed at two ends of the cross rod, and the adjusting screws are arranged on the support and symmetrically distributed by taking the extension line of the cross rod as a center; the cross bar is I-shaped steel; the middle part of the cross bar is also provided with a positioning piece with a positioning plane, and the frame type level bar is arranged on the positioning plane of the positioning piece; the positioning piece is further provided with a first pressing block and a second pressing block, and the frame type level bar is fixed on the positioning plane of the positioning piece through the first pressing block and the second pressing block. The utility model discloses device primary structure adopts I-steel and frame level bar, and I-steel rigidity is big, is applicable to the great level detection of length. The flatness of the level bar device is adjusted by utilizing the screws, and the level bar device can be used for high-precision leveling measurement by matching with a frame type level bar, and the measurement precision can reach 0.01mm/m through field practice.

Description

Level bar device

The technical field is as follows:

the utility model discloses affiliated building trade level bar detects the instrument field, specifically is a level bar.

Background art:

in nuclear power construction, a circular large-section high-precision embedded part is usually installed, because the high-precision embedded part is large in radius (the diameter is usually larger than 2 m), and the embedded part is in an unconventional size (the diameter used by a volute of an AP1000 conventional island pump room is 2642 mm), the installation precision requirement is high (the levelness error is usually more than 0.02 mm/m), a conventional level bar in the market is usually a cuboid straight bar, a cylindrical liquid pipe with bubbles is arranged on the straight bar, different length measurement needs to be carried with level bars in different sizes, the standard size of the level bar is usually an integer, meanwhile, the existing level bar in the market is difficult to measure the level with the larger length and the higher precision requirement, and a level bar device capable of measuring the larger length and the higher precision is needed to solve the problems.

The invention content is as follows:

the utility model aims to solve the technical problem that to the not enough that above-mentioned prior art exists, and provide a level bar device that has solved the great, the higher level of precision of non-standard size length effectively and has detected.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides a level bar device, includes bracket and frame level bar, its characterized in that: the bracket comprises a cross rod, a support and an adjusting screw; the support is fixed at two ends of the cross rod, and the adjusting screws are arranged on the support and symmetrically distributed by taking the extension line of the cross rod as a center; the cross bar is I-shaped steel; the middle part of the cross bar is also provided with a positioning piece with a positioning plane, and the frame type level bar is arranged on the positioning plane of the positioning piece; the positioning piece is further provided with a first pressing block and a second pressing block, and the frame type level bar is fixed on the positioning plane of the positioning piece through the first pressing block and the second pressing block.

Clamping grooves are formed in the support, and two ends of the cross rod are located in the clamping grooves; adjusting holes used for being connected with the adjusting screws are symmetrically arranged on two sides of the clamping groove.

And reinforcing steel plates connected with the flange plates are welded on two sides of the web plate of the I-shaped steel.

The bottom plate of the positioning piece is a positioning steel plate, and the first pressing block and the second pressing block are fixed on the positioning steel plate through bolts.

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

1. the utility model discloses device primary structure adopts I-steel and frame level bar, and I-steel rigidity is big, is applicable to the great level detection of length.

2. The utility model discloses the regulation support of device accessible I-steel both sides utilizes screw adjustment level bar device roughness, and cooperation frame level bar can be used to the leveling of high accuracy, can reach 0.01mm/m through the site practice measurement accuracy.

3. The utility model discloses the device is applicable to the not unidimensional leveling, especially has apparent advantage to special-shaped size.

4. The utility model provides an outdoor conventional leveling's a difficult problem of environmental influences such as ordinary surveyor's level measurement precision is not enough and strong wind.

Drawings

FIG. 1 is a schematic structural view of a level device according to the present invention;

FIG. 2 is a schematic view of the cross bar of the level device of the present invention;

FIG. 3 is a schematic structural view of a support of the level device of the present invention;

the reference numerals in the figures represent the following, respectively: 1-I-steel; 2-a support; 3-adjusting the hole; 4, positioning a steel plate; 5-reinforcing a steel plate; 6-first briquetting; 7-second briquetting; 8-a clamping groove; 9-frame level.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

the utility model discloses self-control level bar device refers to fig. 1 and fig. 2, including bracket and frame level bar 9. The bracket is formed by welding and fixing I-shaped steel 1 by using a support 2. A positioning steel plate 4 is welded at the center of an I-shaped steel 1, a frame type horizontal ruler 9 is arranged on the upper portion of the positioning steel plate 4 and is fixed through a first pressing block 6 and a second pressing block 7, and therefore the situation that the frame type horizontal ruler 9 slides or falls to influence the adjusting process during leveling is avoided. The flatness of the large-section high-precision embedded part is detected by utilizing bubbles of a frame type level bar 9, in order to enhance the bending resistance of I-shaped steel, reinforcing steel plates 5 are welded on two side surfaces of the I-shaped steel at certain intervals, bolt holes with the diameter of more than phi 18 are drilled at two ends of a support 2 to serve as adjusting holes of mounting screws (the specific size is adjusted according to the size of positioning bolts), and screws (not shown in the figure) arranged in the adjusting holes 3 are utilized to adjust the flatness of a self-made level bar device.

The utility model discloses a theory of operation and working process: firstly, screws more than M18 are utilized indoors to match with a high-precision level gauge, the level gauge is leveled, the precision of the level gauge meets the actual measurement precision, then supports 2 on two sides of the self-made level gauge device which are well adjusted are erected on a large-section high-precision embedded part which needs to be detected, a frame type level gauge 9 is placed on a positioning steel plate 4, whether bubbles of the frame type level gauge 9 are centered or not is read, if the bubbles are centered, the self-made level gauge device is rotated by 180 degrees, whether bubbles of the frame type level gauge 9 are centered or not is continuously read, if the bubbles are centered, the flatness of the large-section high-precision embedded part meets the requirement, if the bubbles are not centered, the flatness of the large-section high-precision embedded part does not meet the requirement, a base bolt of the large-section high-precision embedded part needs to be adjusted according to the direction of the bubbles, the.

The utility model discloses compare common rectangle level bar in market, can solve that length is great, the precision is higher, the anomalous built-in fitting levelness of size is measured, and this kind of device is not high to the required precision of manufacture process, and the material of using is I-steel, steel sheet and bolt, is common material on the building site, and usable screw adjusts the levelness and the precision of level bar in the use, operates more in a flexible way.

Claims

1. The utility model provides a level bar device, includes bracket and frame level bar, its characterized in that: the bracket comprises a cross rod, a support and an adjusting screw; the support is fixed at two ends of the cross rod, and the adjusting screws are arranged on the support and symmetrically distributed by taking the extension line of the cross rod as a center; the cross bar is I-shaped steel; the middle part of the cross bar is also provided with a positioning piece with a positioning plane, and the frame type level bar is arranged on the positioning plane of the positioning piece; the positioning piece is further provided with a first pressing block and a second pressing block, and the frame type level bar is fixed on the positioning plane of the positioning piece through the first pressing block and the second pressing block.

2. The level device of claim 1, wherein: clamping grooves are formed in the support, and two ends of the cross rod are located in the clamping grooves; adjusting holes used for being connected with the adjusting screws are symmetrically arranged on two sides of the clamping groove.

3. The level device of claim 2, wherein: and reinforcing steel plates connected with the flange plates are welded on two sides of the web plate of the I-shaped steel.

4. The level device of claim 3, wherein: the bottom plate of the positioning piece is a positioning steel plate, and the first pressing block and the second pressing block are fixed on the positioning steel plate through bolts.