A centering circular angle steel positioning device for embedded parts of steel structure and a construction method thereof

Abstract

A centering circular angle steel positioning device for steel structure embedded parts relates to the field of building construction technology, comprising a base plate, a laser pointer is arranged at the center position of the base plate, the laser beam emitted by the laser pointer corresponds to the center position of the base plate and is perpendicular to the base plate; a first bubble level and a second bubble level arranged perpendicular to each other are provided on the base plate; an annular vertical plate with a downward opening is coaxially arranged at the bottom of the base plate and the center position of the base plate, the annular vertical plate and the base plate enclose an installation space for installing the steel structure embedded parts, and a snap-fit ​​component for fixing the steel structure embedded parts in the installation space is also provided on the base plate. The positioning device can perform centering and leveling at the same time, and the leveling process is completed in one step. The centering process only requires observing whether the laser beam emitted by the laser pointer corresponds to the center position, which is simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a construction method of a centering circular angle steel positioning device for embedded parts of a steel structure. Background Art

[0002] Embedded parts (prefabricated embedded parts) are components pre-installed (buried) in concealed projects. They are components placed during the pouring of the structure and used for lap joints when building the superstructure. Some embedded parts used on piles, columns or caps are Figure 1 The shapes of these embedded parts correspond to the piles or columns, which are generally round or square, and a through hole is provided in the center of the embedded parts for vibrating the concrete inside the piles or columns.

[0003] However, when setting these embedded parts, it is necessary to keep the embedded parts horizontal, and the through holes on the embedded parts should correspond to the center of the pile or column, so it is necessary to perform centering and leveling when setting the embedded parts; Figure 2 The existing practice is to first build a steel cage of a pile or column, and draw a cross mark at the center of the bottom of the steel cage to mark the center; then the worker moves the embedded parts to the top of the steel cage, and puts the bubble level on the embedded parts for leveling. During the leveling process, the position of the bubble level needs to be changed several times to ensure that the embedded parts are level; at the same time, the worker uses a thin rope to hang heavy objects for centering; finally, the worker fixes the embedded parts to the steel cage. The existing practice, on the one hand, is inefficient in centering and leveling, takes a very long time, and the accuracy of centering and leveling is not high enough; on the other hand, when the worker fixes the embedded parts to the steel cage, the position of the embedded parts will be offset, resulting in the inaccurate position of the embedded parts after they are fixed. Summary of the invention

[0004] In view of this, the present invention aims to solve at least one of the above problems to a certain extent, and proposes a construction method for a centering circular angle steel positioning device for steel structure embedded parts, which can solve the problems of low efficiency and insufficient accuracy in the centering and leveling of existing embedded parts.

[0005] The technical solution of one aspect of the present invention is achieved as follows:

[0006] A centering circular angle steel positioning device for embedded parts of steel structures, comprising a base plate, a laser indicator is arranged at the center position of the base plate, the laser light beam emitted by the laser indicator corresponds to the center position of the base plate and is perpendicular to the base plate; a first bubble level and a second bubble level arranged perpendicular to each other are provided on the base plate; an annular vertical plate with a downward opening is coaxially arranged at the bottom of the base plate and the center position of the base plate, the annular vertical plate and the base plate enclose an installation space for installing the embedded parts of the steel structure, and a snap-fit ​​component for fixing the embedded parts of the steel structure in the installation space is also provided on the base plate.

[0007] Furthermore, the base plate includes an annular plate adapted to the shape of the steel structure embedded part, two straight plates vertically intersecting each other in the annular plate, the intersection of the two straight plates is the center position of the base plate, the laser indicator is arranged at the intersection of the two straight plates, and the first bubble level and the second bubble level are respectively arranged on the two straight plates; the installation space is arranged at the bottom of the annular plate.

[0008] Furthermore, the steel structure embedded part is circular, the annular plate is in a circular ring shape, and a plurality of the snap components are evenly spaced on the annular plate.

[0009] Furthermore, the snap-fit ​​component includes a fastener having a C-shaped buckle, the C-shaped buckle is elastic, one end of the C-shaped buckle on the fastener is rotatably arranged on the upper surface of the substrate, and the C-shaped buckle is buckled to the edge position of the steel structure embedded part by rotating the fastener.

[0010] Furthermore, the snap-fit ​​component also includes a fixing seat, which is provided with a horizontally arranged hinge hole; the fastener is formed by bending a steel bar, and the two end portions of the steel bar are insertion portions for inserting from the two ends of the hinge hole, and the two insertion portions are respectively bent to have L-shaped portions, and the ends of the two L-shaped portions are bent and connected to form a V-shaped inverted portion, and an upwardly rolled-up portion is formed on the V-shaped inverted portion, and the rolled-up portion is used to abut the bottom of the steel structure embedded part.

[0011] Furthermore, the snap-fit ​​component also includes a fastening spring, which is arranged in the hinge hole of the fixing seat and is located between the two insertion parts of the fastener; the fastening spring provides an elastic pre-force for the two insertion parts to move away from each other.

[0012] Furthermore, the fixing seat is welded on the upper surface of the substrate.

[0013] The technical solution of another aspect of the present invention is achieved as follows:

[0014] The construction method using any one of the above-mentioned centering circular angle steel positioning devices for embedded parts of steel structures comprises the following steps:

[0015] Step 1: Install the steel structure embedded parts on the positioning device;

[0016] Step 2: mark the center with a cross mark on the bottom of the steel cage, move the positioning device and the embedded steel structure parts onto the steel cage as a whole, center them with the laser beam emitted by the laser pointer, and level them with the first bubble level and the second bubble level;

[0017] Step 3: After the centering and leveling are completed, the steel cage is welded and fixed to the steel structure embedded parts while the position of the steel structure embedded parts is maintained, so that the position of the steel structure embedded parts is fixed;

[0018] Step 4: remove the positioning device from the steel structure embedded part.

[0019] Furthermore, in step one, the snap-fit ​​component on the positioning device is first opened so that the snap-fit ​​component does not block the steel structure embedded part, and then the steel structure embedded part is inserted into the installation space from the bottom of the positioning device, and then the snap-fit ​​component is buckled onto the steel structure embedded part, so that the steel structure embedded part is fixed in the installation space and cannot fall out.

[0020] Furthermore, a steel bar is first welded to the bottom of the steel structure embedded part, and then the steel structure embedded part is installed on the positioning device; when the positioning device and the steel structure embedded part are moved onto the steel cage as a whole, the steel bar is inserted into the steel cage; after the centering and leveling of the steel structure embedded part is completed, the steel bar and the steel cage are fixed by bundling and / or welding while maintaining the position of the steel structure embedded part.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The beneficial effects of the present invention are as follows: using the positioning device, centering and leveling can be performed simultaneously, and the leveling process is completed in one step without the need to change the position measurement multiple times as in the past; the centering process only requires observing whether the laser beam emitted by the laser pointer corresponds to the center position, which is simple and convenient; the laser pointer and the bubble level are observed at the same time to avoid adjusting one of them while the other is offset; in addition, the laser pointer and the bubble level are always set on the embedded part before the embedded part is fixed, so that it is convenient to observe whether the position of the embedded part is offset at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of embedded parts;

[0025] Figure 2 It is a structural schematic diagram of the steel cage;

[0026] Figure 3It is a structural schematic diagram of a centering circular angle steel positioning device for embedded parts of steel structures;

[0027] Figure 4 is an exploded schematic diagram of the buckle component;

[0028] Figure 5 is a top view of the fastener;

[0029] Figure 6 It is a schematic diagram of the action of the buckle component fastening the embedded part;

[0030] Figure 7 This is a schematic diagram of the structure after the embedded parts are welded with steel bars;

[0031] Figure 8 It is a structural schematic diagram of the embedded parts being installed on the positioning device;

[0032] Fig. 9 It is a schematic diagram of the structure after the positioning device and embedded parts are moved onto the steel cage as a whole;

[0033] Fig.10 for Fig. 9 Schematic diagram of the structure after removing the positioning device.

[0034] In the figure: 1. embedded steel structure parts; 11. through hole; 12. steel bar; 2. steel cage; 21. cross mark; 3. base plate; 31. annular plate; 32. straight plate; 4. annular vertical plate; 5. laser indicator; 6. first bubble level; 7. second bubble level; 8. snap-fit ​​component; 81. fastener; 811. C-shaped buckle portion; 812. insertion portion; 813. L-shaped portion; 814. V-shaped undercut portion; 815. raised portion; 82. fixing seat; 821. hinge hole; 83. fastening spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] refer to Figure 3-6, shows a centering circular angle steel positioning device for embedded parts of steel structures, comprising a base plate 3, a laser indicator 5 is arranged at the center position of the base plate 3, the laser beam emitted by the laser indicator 5 corresponds to the center position of the base plate 3 and is perpendicular to the base plate 3; a first bubble level 6 and a second bubble level 7 arranged perpendicular to each other are arranged on the base plate 3; an annular vertical plate 4 with a downward opening is coaxially arranged at the bottom of the base plate 3 and the center position of the base plate, the annular vertical plate 4 and the base plate 3 enclose an installation space for installing the embedded parts 1 of the steel structure, and a snap-fit ​​component 8 for fixing the embedded parts 1 of the steel structure in the installation space is also provided on the base plate 3.

[0037] Specifically, the steel structure embedded part 1 can be inserted from the bottom of the positioning device, so that the steel structure embedded part 1 is inserted into the installation space, and then fixed by the snap member 8, so that the steel structure embedded part 1 is combined with the substrate 3; and the substrate 3 is provided with a laser pointer 5, a first bubble level 6 and a second bubble level 7, and the level of the steel structure embedded part 1 is adjusted by the first bubble level 6 and the second bubble level 7, and the laser pointer 5 emits a laser beam, and the laser beam passes through the through hole 11 on the steel structure embedded part 1 for centering. It should be noted that the first bubble level 6 and the second bubble level 7 can have the same structure, including a level tube, the level tube is made of glass, the inner wall of the level tube is a curved surface with a certain radius of curvature, and the tube is filled with liquid. When the level tube is tilted, the bubble in the level tube moves to the raised end, thereby determining the position of the horizontal plane.

[0038] In this way, the positioning device can be used to perform centering and leveling at the same time. The leveling process is completed in one step, and there is no need to change the position measurement multiple times as in the past. The centering process only needs to observe whether the laser beam emitted by the laser indicator 5 corresponds to the center position, which is simple and convenient. The laser indicator 5 and the bubble level are observed at the same time to avoid adjusting one of them while the other is offset. In addition, the laser indicator 5 and the bubble level are always set on the embedded parts before the embedded parts are fixed, so that it is convenient to observe whether the position of the embedded parts is offset at any time.

[0039] In some specific embodiments, reference Figure 3The base plate 3 includes an annular plate 31 adapted to the shape of the steel structure embedded part 1, two straight plates 32 perpendicularly intersecting in the annular plate 31, the intersection of the two straight plates 32 is the center position of the base plate 3, the laser indicator 5 is arranged at the intersection of the two straight plates 32, the first bubble level 6 and the second bubble level 7 are respectively arranged on the two straight plates 32; the installation space is arranged at the bottom of the annular plate 31. More specifically, the steel structure embedded part 1 is circular, the annular plate 31 is annular, the installation space is formed at the bottom of the annular plate 31, and the buckle members 8 are evenly spaced on the annular plate 31 to ensure that the steel structure embedded part 1 is stably fixed in the installation space.

[0040] In some specific implementations, in order to facilitate fixing the steel structure embedded part 1 on the substrate 3, refer to Figure 4 , Figure 5 and Figure 6 The snap-fit ​​component 8 includes a fastener 81 having a C-shaped buckle 811, and the C-shaped buckle 811 is elastic. One end of the C-shaped buckle 811 on the fastener 81 is rotatably arranged on the upper surface of the substrate 3, and the C-shaped buckle 811 is buckled at the edge position of the steel structure embedded part 1 by rotating the fastener 81.

[0041] For more details on the above scheme, refer to Figure 4 , Figure 5 and Figure 6 The snap-fitting member 8 also includes a fixing seat 82, on which a horizontally arranged hinge hole 821 is provided; the fastener 81 is formed by bending a steel bar, and the two ends of the steel bar are insertion portions 812 for inserting from the two ends of the hinge hole 821, and the two insertion portions 812 are respectively bent with L-shaped portions 813, and the ends of the two L-shaped portions 813 are bent and connected to form a V-shaped undercut portion 814, and an upwardly raised portion 815 is formed on the V-shaped undercut portion 814, and the raised portion 815 is used to abut the bottom of the steel structure embedded part 1; the fixing seat 82 is welded to the upper surface of the substrate 3. Among them, when it is necessary to press and fasten the fastener 81 on the steel structure embedded part 1, the V-shaped inverted portion 814 will bend downward under pressure, and the angle between the V-shaped inverted portion 814 and the L-shaped portion 813 will increase. At the same time, the V-shaped inverted portion 814 will open the bottom ends of the two L-shaped portions 813, and the upper ends of the two L-shaped portions 813 will approach each other, that is, the two insertion portions 812 will approach each other; when the C-shaped buckle 811 is buckled on the steel structure embedded part 1, the fastener 81 tends to recover under its own elastic action, the two insertion portions 812 will move away from each other, the bottom ends of the two L-shaped portions 813 will approach each other, and the V-shaped inverted portion 814 will push upward, thereby fastening the steel structure embedded part 1.

[0042] More specifically, in order to further tighten the steel structure embedded part 1, refer to Figure 4 The buckle member 8 also includes a fastening spring 83, which is arranged in the hinge hole 821 of the fixing seat 82 and between the two insertion parts 812 of the fastener 81; the fastening spring 83 provides an elastic preload for the two insertion parts 812 to move away from each other. In this way, the fastening spring 83 makes the bottom ends of the two L-shaped parts 813 closer to each other with a greater force, so that the V-shaped undercut part 814 is pushed upward more forcefully; ensuring that when a certain force is not applied to the fastener 81, the fastener 81 will not fall out of the steel structure embedded part 1.

[0043] In practical applications, reference Figure 7-10 The construction method of using any one of the above-mentioned circular angle steel positioning devices for steel structure embedded parts comprises the following steps:

[0044] Step 1: Install the steel structure embedded part 1 on the positioning device;

[0045] In some specific implementations, in order to facilitate the fixing of the steel structure embedded part 1 and the steel cage 2, refer to Figure 7 , the steel bar 12 can be welded at the bottom of the steel structure embedded part 1; in addition, refer to Figure 8 When installing the steel structure embedded part 1 to the positioning device, first open the snap member 8 on the positioning device so that the snap member 8 does not block the steel structure embedded part 1, then insert the steel structure embedded part 1 into the installation space from the bottom of the positioning device, and then buckle the snap member 8 on the steel structure embedded part 1 so that the steel structure embedded part 1 is fixed in the installation space and cannot fall out.

[0046] Step 2, reference Fig. 9 , mark the center with a cross mark 21 at the bottom of the steel cage 2, move the positioning device and the steel structure embedded part 1 as a whole to the steel cage 2, and align them with the laser beam emitted by the laser pointer 5, and level them with the first bubble level 6 and the second bubble level 7; specifically, you can first observe the first bubble level 6 and the second bubble level 7, and then observe the laser beam emitted by the laser pointer 5. When the bubbles on the first bubble level 6 and the second bubble level 7 are both located on the horizontal line, it means that the steel structure embedded part 1 is placed horizontally. In the horizontal state, the laser beam emitted by the laser pointer 5 is vertical, and when the laser beam is facing the center of the cross mark 21, the centering is completed.

[0047] Step three, after the centering and leveling are completed, while maintaining the position of the steel structure embedded parts 1, the steel cage 2 is welded to the steel structure embedded parts 1 to fix the position of the steel structure embedded parts 1; specifically, the steel cage 2 can be welded to certain steel bars 12, and during the welding process, the first bubble level 6, the second bubble level 7 and the laser beam emitted by the laser indicator 5 are observed to avoid the position displacement of the steel structure embedded parts 1; when the steel cage 2 is welded to certain steel bars 12, and the steel structure embedded parts 1 are offset, the steel cage 2, the steel bars 12 or the steel structure embedded parts 1 are gently tapped with tools such as hammers to fine-tune the position of the steel structure embedded parts 1. After the fine-tuning is completed, the steel cage 2 is welded to the remaining steel bars 12 to completely fix the steel structure embedded parts 1.

[0048] It should be noted that the position of the steel structure embedded part 1 can be restored to the accurate position by fine-tuning the position of the steel structure embedded part 1. This is because the first bubble level 6, the second bubble level 7 and the laser beam emitted by the laser indicator 5 are observed during the welding of the steel cage 2 and certain steel bars 12, so that the position of the steel structure embedded part 1 will not deviate greatly and can be adjusted by fine-tuning.

[0049] Step 4, reference Fig.10 , remove the positioning device from the steel structure embedded part 1. Specifically, when removing the positioning device, first remove the buckle member 8 from the steel structure embedded part 1, and then pull the positioning device out from the top; the operation is simple and convenient, which improves the efficiency of centering and leveling, and also improves the accuracy of centering and leveling.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centering circular angle steel positioning device for embedded parts of steel structures, characterized in that: It includes a base plate, a laser pointer is arranged at the center position of the base plate, the laser beam emitted by the laser pointer corresponds to the center position of the base plate and is perpendicular to the base plate; a first bubble level and a second bubble level arranged perpendicular to each other are arranged on the base plate; an annular vertical plate with a downward opening is coaxially arranged at the bottom of the base plate and the center position of the base plate, the annular vertical plate and the base plate enclose an installation space for installing the steel structure embedded parts, and the base plate is also provided with a snap-fit ​​component for fixing the steel structure embedded parts in the installation space.

2. The centering circular angle steel positioning device for embedded steel structure parts according to claim 1 is characterized in that: The base plate includes an annular plate adapted to the shape of the steel structure embedded part, two straight plates vertically intersecting each other in the annular plate, the intersection of the two straight plates is the center position of the base plate, the laser indicator is arranged at the intersection of the two straight plates, and the first bubble level and the second bubble level are respectively arranged on the two straight plates; the installation space is arranged at the bottom of the annular plate.

3. The centering circular angle steel positioning device for embedded steel structure parts according to claim 2 is characterized in that: The steel structure embedded part is circular, the annular plate is annular, and a plurality of the snap components are evenly spaced on the annular plate.

4. The centering circular angle steel positioning device for embedded steel structure parts according to claim 1 is characterized in that: The snap-fit ​​component includes a fastener with a C-shaped buckle, the C-shaped buckle is elastic, one end of the C-shaped buckle on the fastener is rotatably arranged on the upper surface of the substrate, and the C-shaped buckle is buckled at the edge of the steel structure embedded part by rotating the fastener.

5. The centering circular angle steel positioning device for embedded steel structure parts according to claim 4 is characterized in that: The snap-fit ​​component also includes a fixing seat, which is provided with a horizontally arranged hinge hole; the fastener is formed by bending a steel bar, and the two end portions of the steel bar are insertion portions for inserting from the two ends of the hinge hole, and the two insertion portions are respectively bent to form L-shaped portions, and the ends of the two L-shaped portions are bent and connected to form a V-shaped inverted portion, and an upwardly rolled-up portion is formed on the V-shaped inverted portion, and the rolled-up portion is used to abut the bottom of the steel structure embedded part.

6. The centering circular angle steel positioning device for embedded steel structure parts according to claim 5, characterized in that: The buckle component also includes a fastening spring, which is arranged in the hinge hole of the fixing seat and located between the two insertion parts of the fastener; the fastening spring provides an elastic preload for the two insertion parts to move away from each other.

7. The centering circular angle steel positioning device for embedded steel structure parts according to claim 5, characterized in that: The fixing seat is welded on the upper surface of the substrate.

8. A construction method using the centering circular angle steel positioning device for embedded steel structure parts according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: Install the steel structure embedded parts on the positioning device; Step 2: mark the center with a cross mark on the bottom of the steel cage, move the positioning device and the embedded steel structure parts onto the steel cage as a whole, center them with the laser beam emitted by the laser pointer, and level them with the first bubble level and the second bubble level; Step 3: After the centering and leveling are completed, the steel cage is welded and fixed to the steel structure embedded parts while the position of the steel structure embedded parts is maintained, so that the position of the steel structure embedded parts is fixed; Step 4: remove the positioning device from the steel structure embedded part.

9. A construction method according to claim 8, characterized in that: In step one, the snap-fitting member on the positioning device is first opened so that the snap-fitting member does not block the steel structure embedded part, and then the steel structure embedded part is inserted into the installation space from the bottom of the positioning device, and then the snap-fitting member is buckled onto the steel structure embedded part, so that the steel structure embedded part is fixed in the installation space and cannot fall out.

10. A construction method according to claim 8, characterized in that: First, a steel bar is welded at the bottom of the steel structure embedded part, and then the steel structure embedded part is installed on the positioning device; when the positioning device and the steel structure embedded part are moved onto the steel cage as a whole, the steel bar is inserted into the steel cage; after the centering and leveling of the steel structure embedded part is completed, the steel bar and the steel cage are fixed by bundling and / or welding while maintaining the position of the steel structure embedded part.

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