Positioning and mounting tool for embedded bolt

Abstract

The utility model discloses a positioning installation tool for an embedded bolt. The positioning installation tool comprises a supporting system and a positioning plate. The supporting system comprises an upper angle steel frame and a lower angle steel frame which are fixedly connected through a plurality of pieces of vertical angle steel. A positioning hole and a plurality of embedded bolt holes are formed in the positioning plate, a positioning middle shaft is fixed in the positioning hole, and embedded bolts are fixed in the embedded bolt holes. The supporting system is composed of the upper angle steel frame, the lower angle steel frame and the vertical angle steel, the supporting system is used for stably supporting the upper positioning plate, the positioning middle shaft and the embedded bolt before concrete pouring, and positioning and determination of the embedded position are facilitated. The two layers of reinforcing steel bar frames are arranged outside the supporting system, and the bottom reinforcing angle steel is arranged at the bottom of the lower angle steel frame in a matched mode, so that the structural strength of the supporting system is better, more stable and accurate position positioning is provided for the positioning plate, and the positioning accuracy and the forming effect of embedded bolts are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of building construction, and particularly relates to a positioning and installation tool for embedded bolts. Background Art

[0002] For some projects with very high construction accuracy requirements, in order to meet the high-precision requirements for equipment installation in the later stage of the project, the positioning of embedded bolts usually needs to be accurate to the millimeter level. The traditional construction process uses manual measurement and positioning plus simple embedded supports, and the support system uses fixing methods such as welding and anchoring, lacking subsequent scientific and accurate verification procedures and an accurate adjustment physical system. As a result, the positioning accuracy of the bolts embedded in this way is low, and it cannot meet the requirements of fixed support for embedded bolts before concrete pouring and accurate position adjustment after three-dimensional scanning verification at the same time. Therefore, a positioning and installation tool for embedded bolts is provided. Summary of the Invention

[0003] In view of the above deficiencies of the prior art, the utility model provides a positioning and installation tool for embedded bolts.

[0004] To achieve the above invention purpose, the technical solution adopted by the utility model is as follows: It includes a support system and a positioning plate fixed on the top of the support system; the support system includes an upper angle steel frame and a lower angle steel frame, the upper angle steel frame and the lower angle steel frame are fixedly connected by a plurality of vertical angle steels, and the positioning plate is fixed on the top of the upper angle steel frame; positioning holes and a plurality of embedded bolt holes are arranged on the positioning plate, a positioning central axis is fixed in the positioning hole, and an embedded bolt is fixed in the embedded bolt hole.

[0005] Further, there are four embedded bolt holes arranged on the positioning plate, and the four embedded bolt holes are arranged at the four corners of the positioning plate.

[0006] Further, a first external thread is arranged at the top of the embedded bolt, and the embedded bolt is fixed on the positioning plate by an upper positioning nut and a lower positioning nut.

[0007] Further, a second external thread is arranged at the top of the positioning central axis, and the positioning central axis is fixed on the positioning plate by an upper fixing nut, an upper gasket, a lower gasket and a lower fixing nut.

[0008] Further, there are four vertical angle steels, and the four vertical angle steels are evenly distributed between the upper angle steel frame and the lower angle steel frame.

[0009] Further, two reinforcement steel frame are arranged between the upper angle steel frame and the lower angle steel frame, and the reinforcement steel frame is fixedly connected with the vertical angle steel.

[0010] Further, the reinforcement steel frame includes a reinforcement steel frame and an X-shaped steel frame, and the reinforcement steel frame is fixedly welded with the X-shaped steel frame.

[0011] Furthermore, the upper angle steel frame is in a cross shape, and the lower angle steel frame is in a square shape.

[0012] Furthermore, a bottom reinforcing angle steel is also fixed on the lower angle steel frame, and the bottom reinforcing angle steel is fixed on the diagonal of the angle steel frame.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The support system of the present utility model is composed of an upper angle steel frame, a lower angle steel frame and several vertical angle steels. The support system is used for the stable support of the upper positioning plate, the positioning central axis and the embedded bolts before concrete pouring, which is convenient for positioning and determining the embedded position.

[0015] Two layers of reinforcing steel frames are arranged outside the support system of the present utility model, and a bottom reinforcing angle steel is arranged in cooperation with the bottom of the lower angle steel frame, so that the structural strength of the support system is better, providing a more stable and accurate position positioning for the positioning plate, and ensuring the positioning accuracy and forming effect of the embedded bolts.

[0016] The present utility model controls the positioning accuracy of the embedded bolts within ±5 mm, meets the accurate embedded bolt point requirements required for the later installation of relevant precision equipment, improves the construction efficiency and project quality, and has high positioning accuracy.

[0017] While meeting the precise fine-tuning requirements after three-dimensional scanning, the present utility model also provides a strong support system. The concrete pouring process will not cause impact displacement to the embedded bolts, with high forming quality, no rework required, and good forming quality.

[0018] The present utility model ensures the high efficiency of the construction process and the accuracy of data, avoids the construction period delay and material waste of the traditional construction method, and has low construction costs.

[0019] After the positioning and installation tooling of the present utility model is verified by three-dimensional scanning, it can accurately fine-tune and fix the embedded bolts according to the scanning and comparison results.

[0020] The positioning and installation tooling of the present utility model solves the problems of pre-embedding support of bolts before concrete pouring and precise fine-tuning after three-dimensional scanning review, and provides accurate embedded bolt points for the later installation of high-precision equipment.

[0021] The positioning and installation tooling of the present utility model is welded and fixed on the bottom steel bars of the raft. The channel steel and steel bars in the support system are independent of the raft steel bars and the embedded installation pipelines. The review fine-tuning and the concrete construction process are not affected by other working conditions, ensuring the accuracy of the bolt embedded points to the greatest extent. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model in the upward view direction;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present utility model in the top view direction;

[0024] Figure 3 This is a schematic diagram of the positioning plate structure;

[0025] Figure 4 This is a partial structure view of the present utility model;

[0026] Figure 5 It is Figure 4 The partial enlarged view at position A in;

[0027] Figure 6 This is a schematic diagram of the structure of the reinforcement steel bar frame;

[0028] Figure 7 This is the construction process flow chart of the present utility model;

[0029] The symbols of each component are as follows:

[0030] 1. Positioning plate; 11. Positioning hole; 12. Embedded bolt hole;

[0031] 2. Support system; 21. Upper angle steel frame; 22. Vertical angle steel; 23. Lower angle steel frame; 25. Reinforcement steel bar frame; 251. Cross-shaped steel bar frame; 252. X-shaped steel bar frame; 26. Bottom reinforcement angle steel;

[0032] 3. Positioning central axis; 31. Upper fixing nut; 32. Upper gasket; 33. Lower fixing nut; 34. Lower gasket;

[0033] 4. Embedded bolt; 41. Upper positioning nut; 42. Lower positioning nut. Specific embodiments

[0034] The specific embodiments of the present utility model will be described below to facilitate the understanding of the present utility model by those skilled in the art. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present utility model are within the scope of protection.

[0035] As Figure 1 and 2 shown, the positioning and installation tooling for the embedded bolt includes a support system 2 and a positioning plate 1 fixed on the top of the support system 2. The positioning plate 1 is preferably a steel plate. The support system 2 is used for the stable support of the upper positioning plate 1, the positioning central axis 3 and the embedded bolt 4 before concrete pouring.

[0036] As Figure 3 and 4As shown in the figure, the support system 2 includes an upper angle steel frame 21 and a lower angle steel frame 23. The upper angle steel frame 21 is in a cross shape, and the lower angle steel frame 23 is in a square shape. The upper angle steel frame 21 and the lower angle steel frame 23 are fixedly connected by a number of vertical angle steels 22, and the positioning plate 1 is fixed on the top of the upper angle steel frame 21. The positioning plate 1 is provided with a positioning hole 11 and four pre-embedded bolt holes 12. The four pre-embedded bolt holes 12 are arranged at the four corners of the positioning plate 1. A positioning central axis 3 is fixed in the positioning hole 11, and a pre-embedded bolt 4 is fixed in the pre-embedded bolt hole 12.

[0037] As Figure 5 shown, the top of the pre-embedded bolt 4 is provided with a first external thread, and the pre-embedded bolt 4 is fixed on the positioning plate 1 by an upper positioning nut 41 and a lower positioning nut 42. The top of the positioning central axis 3 is provided with a second external thread, and the positioning central axis 3 is fixed on the positioning plate 1 by an upper fixing nut 31, an upper gasket 32, a lower gasket 34 and a lower fixing nut 33. The upper fixing nut 31 and the upper gasket 32 are located on the upper side of the positioning plate 1, and the lower gasket 34 and the lower fixing nut 33 are located on the lower side of the positioning plate 1. There are four vertical angle steels 22, and the four vertical angle steels 22 are evenly distributed between the upper angle steel frame 21 and the lower angle steel frame 23. There are two reinforcement steel frames 25 between the upper angle steel frame 21 and the lower angle steel frame 23. The reinforcement steel frames 25 are fixedly connected with the vertical angle steels 22, which can be welded or fixed by wire binding, and the two reinforcement steel frames 25 are fixed at a suitable height of the vertical angle steels 22. The opening of the positioning hole 11 on the positioning plate 1 is slightly larger than the diameter of the positioning central axis 3, which can facilitate the precise fine-tuning during the recheck before concrete pouring, and the adjustment accuracy can reach ≤±5mm. The positioning central axis 3 is used to determine the position of the pre-embedded bolt. The opening size (140mm) of the positioning plate 1 at the positioning central axis is slightly larger than the positioning central axis 3, which is convenient for fine-tuning the plane position of the positioning plate 1 after three-dimensional scanning by loosening the thread clamp.

[0038] As Figure 6 shown, the reinforcement steel frame 25 includes a reinforcement steel frame 251 and an X-shaped steel frame 252, and the reinforcement steel frame 251 is fixedly welded with the X-shaped steel frame 252. The reinforcement steel frame 25 can be combined with concrete to improve the structural strength of the support system 2. The X-shaped steel frame 252 can improve the overall strength of the X-shaped steel frame 252, thereby enhancing the reinforcement effect of the reinforcement steel frame 25. A bottom strengthening angle steel 26 is also fixed on the lower angle steel frame 23, and the bottom strengthening angle steel 26 is fixed on the diagonal of the lower angle steel frame 23. The lower angle steel frame 23 is arranged on the diagonal of the angle steel frame 23, which can further improve the structural strength of the bottom lower angle steel frame 23.

[0039] Tooling process and its principle: As Figure 7 ;

[0040] S1: Work preparation:

[0041] Step S11: Complete the in-depth design of the support. Produce components according to the in-depth design model and drawings. The positioning holes 11, embedded bolt holes 12 and allowable deviations shall meet the requirements of the design and specifications, and avoid reinforcing bars.

[0042] Step S12: The processed support system 2 must be comprehensively inspected by quality inspection personnel. The inspection includes: vertical angle steel 22 (L80X5), bottom reinforcing angle steel 26 (L50X4), reinforced steel frame 25 (φ25mm@500mm), positioning central axis 3 (φ39mm), etc. The dimensional error of the processed steel bars shall meet the provisions of the allowable deviations for steel bar processing in GB50204-02. Construction surface installation can be carried out only after passing the inspection.

[0043] Step S13: Complete the in-depth positioning and drawing of the positioning central axis 3 in the model to provide a basis for on-site preliminary measurement and positioning.

[0044] Step S2: Installation and welding of the support

[0045] The vertical angle steel 22 is welded to the lower angle steel frame 23. If there is no welding point at the bottom layer, additional reinforcing bars are added. The length of the vertical support exceeds the elevation of the positioning steel plate by 300mm. The bottom is welded with the bottom reinforcing angle steel 26 to ensure that the bottom of the support system does not deform. A reinforced steel frame 25 is welded every 500mm from the bottom upwards, arranged in a double-layer and intersecting manner, and horizontal scissors braces are arranged in the same plane to ensure the overall stability. The upper angle steel frames 21 are welded longitudinally and transversely at the top of the support system 2 to ensure that the subsequent positioning plate 1 is located on the same horizontal plane.

[0046] Step S3: Positioning and welding of the positioning central axis 3

[0047] According to the positioning axis and the coordinate points released by the total station, use red paint to mark the central cross line of the central axis on the surface layer steel bars. A L50X4 angle steel is added at the bottom to provide a bottom welding point. Two layers of φ25mm horizontal cross steel bars are added to provide middle and upper welding points. When welding the main axis, use two laser theodolites to assist in positioning to ensure the accurate position of the central axis.

[0048] Step S4: Installation of the positioning plate 1

[0049] The positioning plate 1 is spot-welded to the support system 2. During welding, ensure that the plane position, vertical height and flatness meet the requirements. After installation, take protection measures to prevent other construction workers from stepping on it and causing position deviation, which will affect the installation position of the subsequent positioning bolts. After the installation of the positioning plate 1 is completed, use the upper fixing nut 31, upper gasket 32, lower fixing nut 33 and lower gasket 34 to fix the positioning central axis 3 and the positioning plate 1, and ensure that the opening size of the positioning hole 11 is slightly larger than the positioning central axis 2.

[0050] Step S5: Installation of the embedded bolt 4

[0051] Release the positions of the embedded bolt holes 12 on the positioning plate 1, and fix them to the cabin positioning plate by using the upper positioning nut 41 and the lower positioning nut 42.

[0052] Step S6: 3D scanning

[0053] After the initial installation and fixation of the embedded bolt 4 are completed, clean the site for 3D scanning. Compare the point cloud model formed by scanning with the 3D model, and adjust the deviation positions of the embedded bolt 4. The specific adjustment methods are as follows: for the planar position, adjust by loosening the fixture of the positioning central axis 3; for the vertical height and flatness, cut the vertical column or pad wooden wedges; if the deviation of the embedded bolt position is too large in the first scanning result, it is recommended to conduct another 3D scanning for verification after adjustment.

[0054] Step S7: Welding of the positioning bolt 4

[0055] After verification and adjustment by 3D scanning, weld the lower part of the positioning bolt 4 to the structural steel bars, and weld it to the vertical steel bars at multiple points with short steel bars @200mm.

Claims

1. A positioning and installation tool for embedded bolts, characterized in that: It comprises a support system (2) and a positioning plate (1) fixed on the top of the support system (2); The support system (2) comprises an upper angle steel frame (21) and a lower angle steel frame (23), wherein the upper angle steel frame (21) and the lower angle steel frame (23) are fixedly connected via a plurality of vertical angle steels (22), and the positioning plate (1) is fixed on the top of the upper angle steel frame (21); The positioning plate (1) is provided with a positioning hole (11) and a plurality of embedded bolt holes (12); a positioning center axis (3) is fixed in the positioning hole (11), and embedded bolts (4) are fixed in the embedded bolt holes (12).

2. The positioning and installation tool for embedded bolts according to claim 1 is characterized in that: The positioning plate (1) is provided with four embedded bolt holes (12), and the four embedded bolt holes (12) are arranged at the four corners of the positioning plate (1).

3. The positioning and installation tool for embedded bolts according to claim 1, characterized in that: The top of the embedded bolt (4) is provided with a first external thread, and the embedded bolt (4) is fixed on the positioning plate (1) via an upper positioning nut (41) and a lower positioning nut (42).

4. The positioning and installation tool for embedded bolts according to claim 1, characterized in that: A second external thread is provided at the top of the positioning center shaft (3), and the positioning center shaft (3) is fixed on the positioning plate (1) via an upper fixing nut (31), an upper gasket (32), a lower gasket (34) and a lower fixing nut (33).

5. The positioning and installation tool for embedded bolts according to claim 1, characterized in that: The vertical angle steels (22) are arranged at four locations, and the four vertical angle steels (22) are evenly distributed between the upper angle steel frame (21) and the lower angle steel frame (23).

6. The positioning and installation tool for embedded bolts according to claim 1, characterized in that: Two reinforcing steel bar frames (25) are arranged between the upper angle steel frame (21) and the lower angle steel frame (23), and the reinforcing steel bar frames (25) are fixedly connected to the vertical angle steel (22).

7. The positioning and installation tool for embedded bolts according to claim 6, characterized in that: The reinforcing steel bar frame (25) comprises a reinforcing steel bar frame (251) and an X-shaped steel bar frame (252), and the reinforcing steel bar frame (251) and the X-shaped steel bar frame (252) are fixed by welding.

8. The positioning and installation tool for embedded bolts according to claim 1, characterized in that: The upper angle steel frame (21) is in a well shape, and the lower angle steel frame (23) is in a mouth shape.

9. The positioning and installation tool for embedded bolts according to claim 8, characterized in that: A bottom reinforcing angle steel (26) is also fixed on the lower angle steel frame (23), and the bottom reinforcing angle steel (26) is fixed on the diagonal line of the angle steel frame (23).

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