Fine adjustment device for positioning embedded foundation bolt of steel structure

Abstract

The utility model relates to the field of building construction, in particular to a fine adjustment device for positioning an embedded foundation bolt of a steel structure, which comprises a bolt positioning plate, a measurement positioning plate and a positioning fine adjustment device, the bolt positioning plate comprises a bolt positioning plate body and positioning plate angle steel connected to the lower portion of the bolt positioning plate body. The measurement positioning plate comprises a measurement positioning plate body and a measurement positioning plate center line on the upper surface of the measurement positioning plate body, the measurement positioning plate body is connected above the bolt positioning plate through a positioning plate fixing nut, and the positioning fine adjustment device comprises a front clamping ring and a rear clamping ring which are connected through an adjusting bolt and a hexagon nut. The device is convenient and simple to operate, has a good using effect, and can greatly reduce the installation error of the embedded foundation bolt, so that the positioning accuracy of the foundation bolt is improved, the subsequent steel structure construction is facilitated, and the installation speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of building construction, specifically to a fine-tuning device for positioning pre-embedded anchor bolts in steel structures. Background Technology

[0002] With the continuous development of modern building science and technology, steel structures are widely used in infrastructure projects such as industrial plants, high-rise buildings, and long-span bridges, and their construction efficiency and quality requirements are increasing day by day.

[0003] Anchor bolts are crucial components in steel structure engineering, used to connect foundations and steel columns. Their primary function is to secure the steel columns, enabling them to withstand external forces such as the structure's own weight, wind loads, and seismic loads, while ensuring the stability and safety of the entire structure. In steel structure construction, the quality of the anchor bolt pre-embedding directly affects the accuracy of the steel column installation and the overall safety performance of the structure.

[0004] The traditional method for pre-embedding anchor bolts involves using short steel bars to weld and fix the positioning plate to the foundation steel bars after the bolt positioning plate position is determined and the installation is calibrated. This method suffers from problems such as insufficient positioning accuracy, low construction efficiency, and large installation errors. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the prior art by proposing a fine-tuning device for positioning anchor bolts in steel structures, thus solving the problems of insufficient installation accuracy and low construction efficiency in traditional anchor bolt pre-embedding processes. The specific technical solution is as follows:

[0006] A fine-tuning device for positioning pre-embedded anchor bolts in steel structures includes a bolt positioning plate for fixing the relative positions of the pre-embedded anchor bolts, a measuring positioning plate for positioning a total station measuring instrument, and a positioning fine-tuning device. The bolt positioning plate includes a bolt positioning plate body and a positioning plate angle steel connected below it. The measuring positioning plate includes a measuring positioning plate body and a measuring positioning plate centerline on its upper surface. The measuring positioning plate body is connected to the bolt positioning plate above it by a positioning plate fixing nut. Both the bolt positioning plate body and the measuring positioning plate body have through holes for the pre-embedded anchor bolts to pass through. The positioning fine-tuning device includes a front retaining ring and a rear retaining ring, which are connected by an adjusting bolt and a hexagonal nut. The retaining ring's slot connects to the bolt positioning plate body, and the retaining ring's slot connects to the template support vertical steel pipe.

[0007] The bolt positioning plate body is made of 4-6mm steel plate. Holes are pre-drilled on the steel plate according to the size of the pre-embedded anchor bolts. The position and spacing of each hole are strictly arranged according to the design drawings and are relatively fixed. Continuous positioning plate angle steel is welded to both sides of the bottom of the steel plate. The height of the angle steel is the thickness of the protective layer of the basic reinforcing steel. A certain distance is reserved between the outer edge of the angle steel and the edge of the bolt positioning plate body for the locking connection of the front retaining ring.

[0008] The measuring positioning plate body is reusable and is made of 2-4mm steel plate, with the center line of the measuring positioning plate on its upper surface serving as the measuring reference.

[0009] The front retaining ring is made of steel pipe with an outer diameter of 20~32mm. Its front end has a square concave opening with a height of 8~10mm and a depth of 15~25mm to insert the bolt positioning plate, and the two are in contact with each other.

[0010] The adjusting bolt is 100-150mm long and serves as a slide for the hexagonal nut. The hexagonal nut is matched with the adjusting bolt. One side of the hexagonal nut is connected to the front retaining ring. Rotating the hexagonal nut allows it to slide back and forth, adjusting the length of the positioning and fine-tuning device.

[0011] The rear retaining ring is made of 50~63mm channel steel. The back of the rear retaining ring is welded to the adjusting bolt, and the retaining column template at the front groove supports the vertical steel pipe.

[0012] In practical application, this utility model first completes the drilling of bolt positioning plates and measuring positioning plates according to the design drawings to ensure accurate hole positions. Then, the pre-embedded anchor bolts are passed through the holes in the bolt positioning plates, and the bolt positioning plates are fixed at the top and bottom with nuts, making the bolt positioning plates and pre-embedded bolts a whole. Next, the bolt positioning plates and pre-embedded bolts are placed on the steel structure foundation reinforcement that has been tied, and the foundation concrete formwork is erected. After the formwork is erected, the measuring positioning plate is placed directly above the bolt positioning plates through the anchor bolts. Finally, the front retaining ring of the positioning fine adjustment device is inserted into the bolt positioning plate, and the rear retaining ring of the positioning fine adjustment device is inserted into the vertical steel pipe supporting the formwork, making them closely connected. Then, a total station is used to position the bolts using the center line of the measuring positioning plate as a reference. The length of the positioning fine adjustment device is adjusted by rotating the hexagonal nut on the positioning fine adjustment device, thereby adjusting the position of the bolt positioning plate. This achieves fine adjustment of the anchor bolt position, making construction quick, ensuring the installation accuracy of the anchor bolts, shortening the positioning time, and improving construction efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the positioning and fine-tuning device of this utility model.

[0014] Figure 2 This is a schematic diagram of the bolt positioning plate structure of this utility model.

[0015] Figure 3This is a schematic diagram of the measuring positioning plate structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the positioning and fine-tuning device of this utility model.

[0017] Figure 5 This is a schematic diagram of the installation of the positioning and fine-tuning device of this utility model.

[0018] Figure 6 This is a schematic diagram illustrating the application effect of the positioning and fine-tuning device of this utility model.

[0019] In the diagram: 1- Bolt positioning plate, 2- Measuring positioning plate, 3- Front retaining ring, 4- Hexagonal nut, 5- Adjusting bolt, 6- Rear retaining ring, 7- Positioning plate fixing nut, 8- Positioning plate angle steel, 9- Measuring positioning plate center line, 10- Positioning fine adjustment device, 11- Template support vertical steel pipe, 12- Embedded anchor bolt, 13- Bolt positioning plate body, 14- Measuring positioning plate body. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figure 1 The fine-tuning device shown is for positioning pre-embedded anchor bolts in steel structures, including a bolt positioning plate 1 for fixing the relative positions of the pre-embedded anchor bolts 12, a measuring positioning plate 2 for positioning a total station measuring instrument, and a positioning fine-tuning device 10; as shown Figure 2 As shown, the bolt positioning plate 1 includes a bolt positioning plate body 13 and a positioning plate angle steel 8 connected below it; as Figure 3 As shown, the measuring positioning plate 2 includes a measuring positioning plate body 14 and a measuring positioning plate centerline 9 on its upper surface. The measuring positioning plate body 14 is connected to the bolt positioning plate 1 above it by a positioning plate fixing nut 7. Both the bolt positioning plate body 13 and the measuring positioning plate body 14 have through holes for pre-embedded anchor bolts 12 to pass through. Figure 4 As shown, the positioning and fine-tuning device 10 includes a front retaining ring 3 and a rear retaining ring 6, which are connected by an adjusting bolt 5 and a hexagonal nut 4. The retaining ring 3 is connected to the bolt positioning plate body 13, and the retaining ring 6 is connected to the template support vertical steel pipe 11.

[0023] The bolt positioning plate body 13 is made of 4mm steel plate. Holes are pre-drilled on the steel plate according to the size of the pre-embedded anchor bolts 12. The position and spacing of each hole are strictly arranged and relatively fixed according to the design drawings. Continuous positioning plate angle steel 8 is welded on both sides of the bottom of the steel plate. The height of the angle steel is the thickness of the protective layer of the basic steel reinforcement. A certain distance is reserved between the outer edge of the angle steel and the edge of the bolt positioning plate body 13 for the bayonet connection of the front retaining ring 3.

[0024] The measuring positioning plate body 14 is reusable and is made of 2mm steel plate, with the center line 9 of the measuring positioning plate on its upper surface serving as the measuring reference.

[0025] The front retaining ring 3 is made of a steel pipe with an outer diameter of 20mm. Its front end has a square concave opening with a height of 8mm and a depth of 20mm to insert the bolt positioning plate 1, and the two are in contact with each other.

[0026] The adjusting bolt 5 is 150mm long and serves as a slide for the hexagonal nut 4. The hexagonal nut 4 is matched with the adjusting bolt 5. One side of the hexagonal nut 4 is in contact with the front retaining ring 3. Rotating the hexagonal nut 4 allows it to slide back and forth, adjusting the length of the positioning and fine-tuning device 10.

[0027] The rear retaining ring 6 is made of 50mm channel steel. The back of the rear retaining ring 6 is welded to the adjusting bolt 5, and the front groove is used to hold the column template to support the vertical steel pipe 11.

[0028] like Figure 5 As shown, during use, the front retaining ring 3 of the positioning fine-tuning device 10 is engaged with the bolt positioning plate 1, and the rear retaining ring 6 of the positioning fine-tuning device 10 is engaged with the vertical steel pipe 11 of the template support, with them in close contact. Using a total station with the center line 9 of the positioning plate as a reference, positioning is performed. Rotating the hexagonal nut 4 on the positioning fine-tuning device 10 adjusts the length of the positioning fine-tuning device 10, thereby adjusting the position of the bolt positioning plate 1. This achieves fine-tuning of the position of the pre-embedded anchor bolt 12, ensuring the installation accuracy of the pre-embedded anchor bolt 12.

[0029] The application effect of this utility model is as follows: Figure 6 As shown.

[0030] Concrete formwork and supports are conventional equipment in this field. Specifically, in this embodiment, the main and secondary supports of the formwork are constructed from multiple steel pipes, and this embodiment does not modify them. The installation steps of this utility model are as follows:

[0031] Step 1: Strictly follow the design drawings to complete the drilling of bolt positioning plate 1 and measuring positioning plate 2, and at the same time mark the center line 9 of the measuring positioning plate.

[0032] Step 2: Pass the pre-embedded anchor bolt 12 through the hole of the bolt positioning plate 1, and fix it with the positioning plate fixing nut 7 from the top and bottom, so that the bolt positioning plate 1 and the pre-embedded anchor bolt 12 are connected as a whole.

[0033] Step 3: Place the bolt positioning plate 1 along with the pre-embedded anchor bolts 12 on the steel structure foundation reinforcement that has been tied, and erect the foundation concrete formwork. After the formwork is erected, place the measuring positioning plate 2 through the anchor bolts 12 directly above the bolt positioning plate 1.

[0034] Step 4: Insert the notch of the front retaining ring 3 of the positioning and fine adjustment device 10 into the bolt positioning plate 1, and insert the rear retaining ring 6 of the positioning and fine adjustment device 10 into the vertical steel pipe 11 of the template support, so that they are in close contact.

[0035] Step 5: Use a total station to measure the center line 9 of the positioning plate for positioning. Rotate the hexagonal nut 4 on the positioning fine adjustment device 10 to push or pull back the position of the bolt positioning plate 1, thereby fine-tuning the position of the pre-embedded anchor bolt 12 to ensure the installation accuracy of the pre-embedded anchor bolt 12.

[0036] Step 6: After the foundation concrete is poured, immediately recheck the position of the pre-embedded anchor bolts 12. If the pre-embedded anchor bolts 12 are displaced, repeat step 5 to eliminate the influence of concrete pouring and vibration on the position of the pre-embedded anchor bolts 12 and further improve the installation accuracy of the pre-embedded anchor bolts 12.

[0037] Example 2

[0038] The structure and connection relationships of each part of the fine-tuning device for positioning pre-embedded anchor bolts in steel structures described in this embodiment are the same as those in Embodiment 1. The difference is:

[0039] The bolt positioning plate body 13 is made of 5mm steel plate; the measuring positioning plate body 14 is made of 3mm steel plate; the front retaining ring 3 is made of steel pipe with an outer diameter of 26mm, and its front end has a square concave retaining hole with a height of 9mm and a depth of 15mm; the adjusting bolt 5 is 100mm long; and the rear retaining ring 6 is made of 54mm channel steel.

[0040] Example 3

[0041] The structure and connection relationships of each part of the fine-tuning device for positioning pre-embedded anchor bolts in steel structures described in this embodiment are the same as those in Embodiment 1. The difference is:

[0042] The bolt positioning plate body 13 is made of 6mm steel plate; the measuring positioning plate body 14 is made of 4mm steel plate; the front retaining ring 3 is made of 32mm outer diameter steel pipe, with a 10mm high and 25mm deep square concave notch at its front end; the adjusting bolt 5 is 125mm long; and the rear retaining ring 6 is made of 63mm channel steel.

Claims

1. A fine-tuning device for positioning embedded anchor bolts in steel structures, characterized in that, The system includes a bolt positioning plate for fixing the relative positions of pre-embedded anchor bolts, a measuring positioning plate for positioning a total station measuring instrument, and a positioning fine-tuning device. The bolt positioning plate includes a bolt positioning plate body and a positioning plate angle steel connected below it. The measuring positioning plate includes a measuring positioning plate body and a measuring positioning plate centerline on its upper surface. The measuring positioning plate body is connected to the bolt positioning plate above it by a positioning plate fixing nut. Both the bolt positioning plate body and the measuring positioning plate body have through holes for the pre-embedded anchor bolts to pass through. The positioning fine-tuning device includes a front retaining ring and a rear retaining ring, which are connected by an adjusting bolt and a hexagonal nut. The retaining ring's slot is connected to the bolt positioning plate body, and the retaining ring's slot is connected to the template support vertical steel pipe.

2. The fine-tuning device for positioning pre-embedded anchor bolts in steel structures according to claim 1, characterized in that, The bolt positioning plate body is made of 4-6mm steel plate. Holes are pre-drilled on the steel plate according to the size of the pre-embedded anchor bolts. The position and spacing of each hole are strictly arranged according to the design drawings and are relatively fixed. Continuous positioning plate angle steel is welded to both sides of the bottom of the steel plate. The height of the angle steel is the thickness of the protective layer of the basic reinforcing steel. A certain distance is reserved between the outer edge of the angle steel and the edge of the bolt positioning plate body for the locking connection of the front retaining ring.

3. The fine-tuning device for positioning pre-embedded anchor bolts in steel structures according to claim 1, characterized in that, The measuring positioning plate body is reusable and is made of 2-4mm steel plate, with the center line of the measuring positioning plate on its upper surface serving as the measuring reference.

4. The fine-tuning device for positioning pre-embedded anchor bolts in steel structures according to claim 1, characterized in that, The front retaining ring is made of steel pipe with an outer diameter of 20~32mm. Its front end has a square concave opening with a height of 8~10mm and a depth of 15~25mm to insert the bolt positioning plate, and the two are in contact with each other.

5. A fine-tuning device for positioning pre-embedded anchor bolts in steel structures according to claim 1, characterized in that, The adjusting bolt is 100-150mm long and serves as a slide for the hexagonal nut. The hexagonal nut is matched with the adjusting bolt. One side of the hexagonal nut is connected to the front retaining ring. Rotating the hexagonal nut allows it to slide back and forth, adjusting the length of the positioning and fine-tuning device.

6. The fine-tuning device for positioning pre-embedded anchor bolts in steel structures according to claim 1, characterized in that, The rear retaining ring is made of 50~63mm channel steel. The back of the rear retaining ring is welded to the adjusting bolt, and the retaining column template at the front groove supports the vertical steel pipe.

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