CN114777737B

CN114777737B - Detection tool

Info

Publication number: CN114777737B
Application number: CN202210469771.XA
Authority: CN
Inventors: 李延雄; 刘天驹; 纪书原; 杜文强; 万浩宇
Original assignee: China 19th Metallurgical Group Co ltd
Current assignee: China 19th Metallurgical Group Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-08-01
Anticipated expiration: 2042-04-28
Also published as: CN114777737A

Abstract

The invention discloses a detection tool, relates to the field of measuring instruments, and solves the problems of large error and inconvenient operation of the existing verticality detection tool. The technical scheme adopted by the invention is as follows: the detection tool comprises a fixed block and a swivel base, wherein one side of the fixed block is a detection leaning surface, the other side of the fixed block is rotationally connected with the swivel base, a turntable is arranged on the swivel base, the rotation direction of the turntable is mutually perpendicular to that of the swivel base, a counterweight and a light beam emitter are arranged on one side of the turntable, a verticality measuring block is further arranged on the fixed block, and a scale is arranged on one side of the verticality measuring block corresponding to the light beam emitter; when the light beam emission direction of the light beam emitter is right opposite to the center of the scale of the verticality measuring block, the detection leaning surface is vertical. The detecting tool can further comprise a levelness detecting rod, one end of the levelness detecting rod is arranged on the fixed block, and the other end of the levelness detecting rod is provided with scales. The invention is attached to the surface of an object to be detected and is used for detecting the verticality and the levelness of the object.

Description

Detection tool

Technical Field

The invention relates to the field of measuring instruments, in particular to a tool for detecting verticality and levelness.

Background

The lattice type steel structure can be installed from bottom to top on site, can be hoisted and connected in a butt joint mode after being installed on the ground in a segmented mode, and can be hoisted and installed once after being integrally installed on the ground. The frame beams can be assembled on the ground in sections and then connected in a butt joint way at high altitude, or can be assembled on the ground integrally and then lifted and installed at one time. Regardless of the mode of assembly and positioning of the beam and column, the elevation, verticality and horizontal deviation must be strictly controlled. In order to improve the installation accuracy of the steel structure, one beam column at the middle part is selected to be installed in advance. And after the two groups of steel columns are hoisted, retesting is carried out on the axis and the elevation of the steel columns, the steel columns are stabilized by using steel cable wind ropes after correction, and then a horizontal cross beam is installed, namely, hoisting is carried out at a first vertical test point. After the beam is in place, it is connected by high strength bolts but not easily tightened. After each part is fixed, retesting, correcting and fine tuning are carried out on the axis of the steel column. The axis of the steel column is retested from two directions, and bolts at all parts are sequentially screwed after retesting results are qualified. During the screwing process, the axis of the steel column is dynamically tracked, and once the axis change exceeds an allowable value, the axis change is immediately adjusted. The whole bolt fastening process is carried out simultaneously by adopting a symmetrical method on two ends of the same component from beam column joints to support and web member joints so as to reduce the accumulated error of a single side and ensure the correct installation of the steel column, because the correct installation of the steel column is a necessary prerequisite for all other installation work in the whole installation process.

At present, the steel structure installation accuracy is mainly detected through a vertical detection ruler and a horizontal detection ruler. In the process of fixing the components and after the components are fixed, the detection ruler is required to be repeatedly attached to the steel structure surface to measure the positive and negative deviation, and soft pull adjustment is performed. On one hand, the measuring error of the measuring ruler when being attached to the steel rod is large, and the operation is very inconvenient; on the other hand, the detection ruler is not easy to align with the steel pipe component, measurement errors are increased, and dynamic tracking of the axis state becomes difficult.

Disclosure of Invention

The invention provides a tool for detecting verticality, which solves the problems of large error and inconvenient operation of the existing verticality detection tool.

The technical scheme adopted by the invention is as follows: the detection tool comprises a fixed block and a swivel base, wherein one side of the fixed block is a detection leaning surface, the other side of the fixed block is rotationally connected with the swivel base, a turntable is arranged on the swivel base, the rotation direction of the turntable is mutually perpendicular to that of the swivel base, a counterweight and a light beam emitter are arranged on one side of the turntable, a verticality measuring block is further arranged on the fixed block, and a scale is arranged on one side of the verticality measuring block corresponding to the light beam emitter; when the light beam emission direction of the light beam emitter is right opposite to the center of the scale of the verticality measuring block, the detection leaning surface is vertical.

Specific: the light beam emitter is a laser pen, and the scale is an annular scale or a radial scale.

Specific: one side of the fixed block, which is rotationally connected with the swivel mount, is provided with a concave cavity, and the swivel mount can rotate into the concave cavity.

Further is: the detection leaning surface of the fixed block is also provided with a magnetic attraction block.

Further, it is: two grooves are formed in one side, opposite to the fixed block, of the magnetic attraction block, the plane where the central line of each groove is located is parallel to the plane where the detection leaning surface is located, the two grooves are arranged in a crisscross shape, and the central line of one groove is parallel to the rotating shaft direction of the rotary seat around the fixed block.

Further, it is: one side of the magnetic attraction block is provided with a positioning block, and a right angle is formed between the positioning block and the magnetic attraction block.

Further is: the swivel mount and the verticality measuring block are arranged on the side surface of the fixed block opposite to the detection leaning surface, and the light beam emitting direction of the light beam emitter is consistent with the setting direction of the counterweight.

Further is: the detecting tool also comprises a levelness detecting rod, one end of the levelness detecting rod is arranged on the fixed block, and the other end of the levelness detecting rod is provided with scales; when the light beam emission direction of the light beam emitter is vertically downward and is opposite to the center of the scale of the levelness detection rod, the abutting surface is detected to be level.

Further is: one end of the levelness detection rod is rotatably connected to the fixed block, and at least one fixed piece or fixed structure for temporarily fixing the levelness detection rod is further arranged on the fixed block.

Specific: the fixed block is provided with first magnet and second magnet in the side at levelness measuring pole place, and levelness measuring pole is but the magnetism material of inhaling, and the swing scope of levelness measuring pole is between first magnet and second magnet.

The beneficial effects of the invention are as follows: the invention reflects the verticality of the object through the position of the beam emitter on the verticality measuring block, can automatically adapt to the dynamic change of the object, does not need manual repeated adjustment, does not need calibration for multiple times, and has the characteristics of high measuring precision and convenient operation. When the detection tool is used, the detection leaning surface is fixed on an object to be detected, so that the verticality of the object to be detected can be detected, the levelness can be detected, the construction difficulty of workers is reduced, the potential safety hazard existing in the measurement operation is solved, the construction cost is saved, and the construction efficiency is improved.

The fixed block is provided with a concave cavity, and the rotary seat can be placed in the concave cavity, so that a protection effect is formed on the rotary seat, the rotary seat is convenient to store, and the rotation range of the rotary seat relative to the fixed block can be enlarged. The detection surface of the fixing block is provided with a magnetic attraction block, so that the steel member is fixed conveniently by magnetic attraction, and the verticality and the levelness of the steel member are detected. The detecting tool comprises a levelness detecting rod and can be used for detecting levelness.

Drawings

FIG. 1 is a schematic view of an example of the inspection tool of the present invention in inspecting verticality.

Fig. 2 is a schematic diagram of an example of the inspection tool of the present invention in detecting levelness.

Reference numerals: the device comprises a fixed block 1, a concave cavity 11, a first magnet 12, a second magnet 13, a swivel base 2, a turntable 3, a counterweight 31, a beam emitter 32, a verticality measuring block 4, a magnetic attraction block 5, a groove 51, a positioning block 52 and a levelness detecting rod 6.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, the detection tool provided by the invention comprises a fixed block 1 and a swivel base 2, wherein one side of the fixed block 1 is a detection leaning surface, and the other side of the fixed block 1 is rotatably connected with the swivel base 2. The detection abutting surface of the fixed block 1 is generally a plane and is suitable for detecting an object with a flat surface; the detection abutment surface of the fixing block 1 may also be provided with a groove, for example, a groove having a semicircular cross section, so that the detection abutment surface is facilitated to firmly abut against the cylindrical object surface.

The detection leaning surface can be directly leaning against the object to be detected, or can be indirectly leaning against the object to be detected through a partition plate or a backing plate and the like. For example, in order to facilitate the stable fixing of the detection abutment surface to the steel member, the detection abutment surface of the fixing block 1 is provided with a magnetic attraction block 5, and the magnetic attraction block 5 is an object having a magnetic force action, typically a magnet. The side of the magnetic attraction block 5, which is opposite to the fixed block 1, forms a new detection leaning surface for replacing the detection leaning surface of the fixed block 1, the detection leaning surface formed by the magnetic attraction block 5 can be flat, and a groove which is convenient to adsorb on a columnar steel member can also be arranged, the diameter of the groove is generally smaller than the diameter of a steel member steel pipe, and the groove can be kept parallel to the axis of the steel pipe after adsorption. For example, referring to fig. 2, two grooves 51 are disposed on a side of the magnetic attraction block 5 facing away from the fixed block 1, the two grooves 51 are disposed in a crisscross arrangement and are perpendicular to each other, a plane on which a center line of the groove 51 is located is parallel to a plane on which the detection abutment surface is located, and a center line of one groove 51 is parallel to a rotation axis direction of the rotary seat 2 around the fixed block 1. The detection leaning surface of the fixed block 1 or the new detection leaning surface formed by the magnetic blocks 5 can also be provided with positioning blocks 52, so that the detection leaning surface is easier to be positioned when placed on an object to be detected, for example, two positioning blocks 52 are arranged on one side of the magnetic block 5, the two positioning blocks 52 are distributed on two sides of the groove 51 of the magnetic block 5 and are positioned at the edge of the magnetic block 5, and a right angle is formed between the positioning blocks 52 and the magnetic block 5, as shown in fig. 2.

The other side of the fixed block 1 is rotationally connected with a rotary seat 2, and the rotary seat 2 can rotate freely relative to the fixed block 1. The rotary seat 2 can be hinged to the fixed block 1 through a rotary shaft, a hinge and the like, and the rotary seat 2 is preferably connected to the side of the fixed block 1 opposite to the detection leaning surface. In order to be convenient for accomodate swivel mount 2, also in order to enlarge swivel mount 2 to fixed block 1 one side pivoted scope simultaneously, fixed block 1 rotates one side of connecting swivel mount 2 and sets up cavity 11, and the size of cavity 11 is not less than the size of swivel mount 2, makes swivel mount 2 rotatable to in the cavity 11. The rotary table 3 is arranged on the rotary table 2, the rotary table 3 can freely rotate on the rotary table 2, and the rotation direction of the rotary table 3 is mutually perpendicular to the rotation direction of the rotary table 2. One side of the turntable 3 is provided with a counterweight 31 and a beam emitter 32, the beam emitter 32 is an object capable of emitting a straight beam, a laser pen is generally selected, and the position of the beam emitter 32 is affected by the counterweight 31. For example, both the swivel base 2 and the verticality measuring block 4 are disposed on the side of the fixed block 1 facing away from the detection abutment surface, and the light beam emission direction of the light beam emitter 32 coincides with the arrangement direction of the weight 31, that is, the light beam emission direction of the light beam emitter 32 coincides with the arrangement direction of the weight 31.

The fixed block 1 is also provided with a verticality measuring block 4, and the verticality measuring block 4 is provided with scales corresponding to one side of the beam emitter 32. The verticality measuring block 4 is used for receiving the light beam of the light beam emitter 32, the scale of the verticality measuring block 4 is an annular scale or a radial scale, the radial scale can be a crisscross scale or a rice-shaped scale, and the crisscross scale corresponds to the rotation direction of the turntable 3 and the rotation direction of the swivel base 2. For convenient observation, a round hole can be arranged at the center of the scale. The detection abutment surface is vertical when the beam emission direction of the beam emitter 32 is opposite to the center of the scale of the verticality measuring block 4.

When the verticality of the steel member is detected through the detection tool, referring to fig. 1, the magnetic attraction block 5 is attracted to the steel member, the rotary seat 2 is in a longitudinal state and is affected by the verticality of the steel member, if the steel member deviates from the axis direction of the turntable 3, the beam emitter 32 deflects, the beam cannot be aligned with the scale center of the verticality measuring block 4, and the steel member can be adjusted according to the position of the beam on the scale of the verticality measuring block 4. Similarly, if the steel member deviates from the axis direction of rotation of the turret 2, the turret 2 will deflect around the axis, the beam emitter 32 will deflect, the beam cannot be aligned with the scale center of the verticality measuring block 4, and the steel member can be correspondingly adjusted according to the position of the beam on the scale of the verticality measuring block 4. If both the swivel base 2 and the turntable 3 deflect, the position of the magnetic attraction block 5 needs to be changed, the deviation of one of the swivel base 2 and the turntable 3 is eliminated, and the other direction is adjusted.

In order to realize the detection of levelness, the detection tool still includes levelness measuring rod 6, and the one end of levelness measuring rod 6 is installed in fixed block 1, and the other end of levelness measuring rod 6 sets up the scale. The levelness detecting rod 6 may be directly and fixedly mounted on the fixed block 1, so as to facilitate storage, and also so as not to affect the detection of the verticality, the levelness detecting rod 6 may be movably connected or rotatably connected to the fixed block 1, but the levelness detecting rod 6 must be able to maintain a fixed state with respect to the fixed block 1. For example, one end of the levelness detecting rod 6 is rotatably connected to the fixing block 1, and at least one fixing piece or fixing structure for temporarily fixing the levelness detecting rod 6 is further arranged on the fixing block 1, and the fixing piece and the fixing structure can be fastened or magnetically attracted for fixing. For example, referring to fig. 2, the levelness detecting rod 6 is L-shaped, the fixing block 1 is provided with a first magnet 12 and a second magnet 13 on the side surface where the levelness detecting rod 6 is located, the levelness detecting rod 6 is made of a magnetically attractable material, and the swinging range of the levelness detecting rod 6 is between the first magnet 12 and the second magnet 13.

The abutment surface level is detected with the beam emission direction of the beam emitter 32 vertically downward and facing the center of the scale of the levelness detection rod 6. When the levelness of the steel member is detected by the detection tool, referring to fig. 2, the magnetic attraction block 5 is attracted to the steel member, the rotary base 2 is in a hanging state, no matter whether the fixed block 1 and the steel member of the object to be detected are horizontal, the light beam emitting direction of the light beam emitter 32 is always fixed under the action of the counterweight 31, and in the embodiment of fig. 2, the light beam emitting direction of the light beam emitter 32 is always vertically downward. The levelness detection rod 6 is fixed relative to the fixed block 1, the levelness detection rod 6 can reflect the level state of the steel member of the object to be detected, and whether the steel member of the object to be detected is level can be detected by presetting the position of the levelness detection rod 6 and the scale position of the levelness detection rod 6 and determining whether the steel member of the object to be detected is level or not through the position of the light beam on the scale of the levelness detection rod 6.

Claims

1. Detection instrument, its characterized in that: the device comprises a fixed block (1) and a swivel base (2), wherein one side of the fixed block (1) is a detection leaning surface, the other side of the fixed block (1) is rotationally connected with the swivel base (2), a turntable (3) is installed on the swivel base (2), the rotation direction of the turntable (3) is mutually perpendicular to the rotation direction of the swivel base (2), a counterweight (31) and a light beam emitter (32) are arranged on one side of the turntable (3), a verticality measuring block (4) is further installed on the fixed block (1), and scales are arranged on one side of the verticality measuring block (4) corresponding to the light beam emitter (32); when the light beam emission direction of the light beam emitter (32) is right opposite to the center of the scale of the verticality measuring block (4), the detection leaning surface is vertical;

the detecting tool further comprises a levelness detecting rod (6), one end of the levelness detecting rod (6) is rotatably connected to the fixed block (1), at least one fixing piece or fixing structure for temporarily fixing the levelness detecting rod (6) is arranged on the fixed block (1), and scales are arranged at the other end of the levelness detecting rod (6); the abutting surface is detected when the light beam emitting direction of the light beam emitter (32) is vertically downward and is opposite to the center of the scale of the levelness detecting rod (6).

2. The inspection tool of claim 1, wherein: the beam emitter (32) is a laser pen, and the scale is an annular scale or a radial scale.

3. The inspection tool of claim 1, wherein: one side of the fixed block (1) which is rotationally connected with the rotary seat (2) is provided with a concave cavity (11), and the rotary seat (2) can rotate into the concave cavity (11).

4. The inspection tool of claim 1, wherein: the detection leaning surface of the fixed block (1) is also provided with a magnetic attraction block (5).

5. The inspection tool as set forth in claim 4, wherein: two grooves (51) are formed in one side, opposite to the fixed block (1), of the magnetic attraction block (5), the plane where the center line of each groove (51) is located is parallel to the plane where the detection leaning surface is located, the two grooves are arranged in a crisscross shape, and the center line of one groove (51) is parallel to the rotating shaft direction of the rotary seat (2) around the fixed block (1).

6. The inspection tool as set forth in claim 4, wherein: one side of the magnetic block (5) is provided with a positioning block (52), and a right angle is formed between the positioning block (52) and the magnetic block (5).

7. The inspection tool of any one of claims 1-6, wherein: both the swivel base (2) and the verticality measuring block (4) are arranged on the side surface of the fixed block (1) opposite to the detection leaning surface, and the light beam emitting direction of the light beam emitter (32) is consistent with the setting direction of the counterweight (31).

8. The inspection tool of any one of claims 1-6, wherein: the fixed block (1) is provided with a first magnet (12) and a second magnet (13) on the side surface where the levelness detection rod (6) is located, the levelness detection rod (6) is made of a magnetically attractable material, and the swinging range of the levelness detection rod (6) is between the first magnet (12) and the second magnet (13).