Height-adjustable embedded anchor bolt for heavy steel column

Abstract

The utility model discloses a heavy -duty steel column adjustable elevation pre -buried foundation bolt, include: upper steel sheet, it is rectangle, four corners below vertical setting have angle steel stand; The middle steel sheet is rectangle, and the middle steel sheet sets up below the upper steel sheet, and four corners of the middle steel plate are fixedly connected with four angle steel stands respectively, and the middle steel plate is in the middle part of four angle steels in vertical direction; Base, four bases set down four angle steel stands respectively, and the base includes lower horizontal part, and the lower horizontal part upper fixedly connected with adjusting screw rod, and the adjusting screw rod middle part position of being on one side sets up the upper horizontal part, and the lower and upper of upper horizontal part sets up first nut respectively. The utility model discloses through adjusting screw rod and two first nut structure in base, realize the independent adjustment of foundation bolt frame four corners height, need not rely on hoisting machinery repeatedly adjustment, complete level once, avoid foundation leveling treatment, significantly reduce the time of mechanical platform class occupation.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a heavy-duty steel column adjustable elevation pre-embedded anchor bolt. Background Technology

[0002] In traditional engineering projects, anchor bolts are pre-embedded by leveling the foundation or placing shims before pouring concrete. This involves repeated measurements and positioning, followed by the use of cranes or truck cranes to move the anchor bolts for leveling. However, this method has several problems: First, the leveling requirements for steel column pre-embedding are high, and the flatness of the foundation slab is difficult to control in one go, requiring manual leveling. If the foundation elevation is too low, measures need to be taken to raise it; if it is too high, grinding is required. Second, heavy anchor bolts require cranes for hoisting, and repeated adjustments to the level of the pre-embedded anchor bolts consume a significant amount of time, making precise leveling impossible in one go. Utility Model Content

[0003] The purpose of this utility model is to provide a heavy-duty steel column adjustable elevation pre-embedded anchor bolt to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty steel column adjustable elevation pre-embedded anchor bolt, comprising an upper steel plate, which is rectangular, with angle steel columns vertically arranged at its four corners; a middle steel plate, which is rectangular, arranged below the upper steel plate, with its four corners fixedly connected to the four angle steel columns respectively, and the middle steel plate located in the middle of the four angle steel columns in the vertical direction; and a base, with four bases respectively arranged below the four angle steel columns, each base including a lower horizontal part, with an adjusting screw fixedly connected above the lower horizontal part, and an upper horizontal part arranged at a position slightly above the middle of the adjusting screw, with first nuts arranged below and above the upper horizontal part respectively, and the upper horizontal part fixedly connected to the adjusting screw through two first nuts.

[0005] In a preferred embodiment, horizontal angle steel is fixedly connected to each pair of the four angle steel columns. The horizontal angle steel is located near the lower end of the angle steel column, and the end of the horizontal angle steel is fixedly connected to the outer side of the angle steel column.

[0006] In a preferred embodiment, first bolt holes are provided at the four corners of the upper steel plate, and two second bolt holes are provided on each side of the upper steel plate; The four corners of the central steel plate are provided with third bolt holes corresponding to the first bolt holes, and each side of the central steel plate is provided with two fourth bolt holes corresponding to the second bolt holes.

[0007] In a preferred embodiment, anchor bolts are threaded through the first bolt hole and the third bolt hole directly below the first bolt hole, and anchor bolts are threaded through the second bolt hole and the fourth bolt hole directly below the second bolt hole. A second nut is provided above and below the anchor bolt on the upper steel plate, and a third nut is provided below the anchor bolt on the middle steel plate. The third nut is located at the lower end of the anchor bolt, and two fourth nuts are provided at the upper end of the anchor bolt.

[0008] In a preferred embodiment, an upper concrete pouring hole is provided in the middle of the upper steel plate, and a middle concrete pouring hole corresponding to the middle of the upper steel plate is provided in the middle of the middle of the middle steel plate. The upper concrete pouring hole and the middle concrete pouring hole are the same size.

[0009] In a preferred embodiment, the lower end of the adjusting screw is inserted into the lower horizontal section, and the area of ​​the lower horizontal section is larger than the area of ​​the upper horizontal section.

[0010] Compared with the prior art, this utility model has the following features and beneficial effects: 1. This utility model achieves independent adjustment of the height of the four corners of the anchor bolt frame through the adjusting screw and two first nuts in the base. It eliminates the need for repeated adjustments by hoisting machinery, completes the leveling in one go, avoids foundation leveling, and significantly reduces the time occupied by machinery.

[0011] 2. This utility model uses the first and second bolt holes in the upper steel plate, the third and fourth bolt holes in the middle steel plate, and the anchor bolt threads passing through them, in conjunction with the fourth nut in the upper part, the third nut in the middle part, and the second nut below the upper steel plate, to achieve multi-layer fixation, accurately control the vertical position and spacing of the anchor bolt threads, ensure positioning accuracy, and effectively solve the problem of misalignment of traditional anchor bolts.

[0012] 3. This utility model strengthens the structural rigidity and overall stability of the entire anchor bolt device during concrete pouring and load-bearing by fixing horizontal angle steel to two pairs of four angle steel columns near the lower end and welding them with the column angle steel to form a stable frame. Combined with the large-area support design of the horizontal part under the base, it ensures the construction quality. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a cross-sectional view of section AA of this utility model; Figure 3 This is a cross-sectional view of the BB section of this utility model; Figure 4 This is a cross-sectional view of the DD section of this utility model; Figure 5 This is a cross-sectional view of the CC section of this utility model; Figure 6 This is a detailed view of the base of this utility model.

[0015] Figure reference numerals: 1 - upper steel plate, 2 - angle steel column, 3 - middle steel plate, 4 - horizontal angle steel, 5 - adjusting screw rod, 6 - upper horizontal part, 7 - first nut, 8 - lower horizontal part, 9 - anchor bolt screw rod, 10 - second nut, 11 - third nut, 12 - fourth nut. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1: See the examples. Figures 1 to 6 As shown, this utility model discloses a heavy-duty steel column adjustable elevation pre-embedded anchor bolt, including an upper steel plate 1, which is rectangular. The upper steel plate 1 has an upper concrete pouring hole in the middle, and first bolt holes are opened at the four corners of the upper steel plate 1. Two second bolt holes are opened on each side of the upper steel plate 1. Angle steel columns 2 are vertically arranged below the four corners of the upper steel plate 1. Horizontal angle steel 4 is fixedly connected to each pair of the four angle steel columns 2. The horizontal angle steel 4 is located near the lower end of the angle steel column 2, and the end of the horizontal angle steel 4 is fixedly connected to the outer side of the angle steel column 2.

[0018] The middle steel plate 3 is rectangular. A middle concrete pouring hole corresponding to the middle of the upper steel plate 1 is opened in the middle of the middle steel plate 3. The upper concrete pouring hole and the middle concrete pouring hole are the same size. Third bolt holes corresponding to the first bolt holes are opened at the four corners of the middle steel plate 3. Two fourth bolt holes corresponding to the second bolt holes are opened on each side of the middle steel plate 3.

[0019] The middle steel plate 3 is set below the upper steel plate 1. The four corners of the middle steel plate 3 are fixedly connected to the four angle steel columns 2 respectively. The middle steel plate 3 is located in the middle of the four angle steel columns 2 in the vertical direction.

[0020] Anchor bolt spools 9 are inserted into the first bolt hole and the third bolt hole directly below the first bolt hole. Anchor bolt spools 9 are inserted into the second bolt hole and the fourth bolt hole directly below the second bolt hole. A second nut 10 is provided above and below the upper steel plate 1 for the anchor bolt spool 9. A third nut 11 is provided below the middle steel plate 3 for the anchor bolt spool 9. The third nut 11 is located at the lower end of the anchor bolt spool 9. Two fourth nuts 12 are provided at the upper end of the anchor bolt spool 9.

[0021] The base consists of four bases, each located below a set of four angle steel columns 2. Each base includes a lower horizontal section 8. An adjusting screw 5 is fixedly connected to the upper part of the lower horizontal section 8. An upper horizontal section 6 is located slightly above the middle of the adjusting screw 5. First nuts 7 are located below and above the upper horizontal section 6. The upper horizontal section 6 is fixedly connected to the adjusting screw 5 via two first nuts 7. The lower end of the adjusting screw 5 passes through the interior of the lower horizontal section 8. The area of ​​the lower horizontal section 8 is larger than the area of ​​the upper horizontal section 6.

[0022] Example 2: Installation steps of this utility model: Step 1: Vertically weld four angle steel columns 2 to the lower four corners of the upper steel plate 1. Weld the middle steel plate 3 to the middle of the angle steel columns 2, ensuring that its third bolt hole corresponds perpendicularly to the first bolt hole of the upper steel plate 1, and its fourth bolt hole corresponds perpendicularly to the second bolt hole. Weld horizontal angle steels 4 in pairs to the lower ends of the angle steel columns 2 to form a stable frame.

[0023] Step 2: Weld the lower end of the adjusting screw 5 to the lower horizontal part 8. The adjusting screw 5 passes through the upper horizontal part 6 and is locked in place by screwing the first nut 7 into the upper and lower parts of the upper horizontal part 6. Weld the upper horizontal parts 6 of the four sets of bases to the bottom of the angle steel column 2.

[0024] Step 3: Pass the anchor bolt threaded rod 9 sequentially through the first bolt hole of the upper steel plate 1 and the third bolt hole of the middle steel plate 3, and then pass the anchor bolt threaded rod 9 sequentially through the second bolt hole of the upper steel plate 1 and the fourth bolt hole of the middle steel plate 3. Install the second nut 10 above and below the upper steel plate 1 for fixation; screw the third nut 11 into the lower end of the anchor bolt threaded rod 9, and screw the two fourth nuts 12 into the top end of the anchor bolt threaded rod 9 to lock it in place.

[0025] Step 4: Hoist the device to the pre-embedded position, keep it slightly suspended, and rotate the first nut 7 on the adjusting screw 5 of each of the four bases to accurately level the four corners of the anchor bolt frame by raising and lowering the height of the lower horizontal part 8.

[0026] Step 5: After leveling, pour concrete. The concrete is filled into the device through the middle concrete pouring hole 13 of the upper steel plate 1 and the middle concrete pouring hole of the middle steel plate 3 to form an integral anchoring structure.

Claims

1. A heavy-duty steel column adjustable elevation pre-embedded anchor bolt, characterized in that: include: The upper steel plate (1) is rectangular, and angle steel columns (2) are vertically installed at the four corners below it. The middle steel plate (3) is rectangular and is located below the upper steel plate (1). The four corners of the middle steel plate (3) are fixedly connected to four angle steel columns (2). The middle steel plate (3) is located in the middle of the four angle steel columns (2) in the vertical direction. The base is provided below the four angle steel columns (2). The base includes a lower horizontal part (8). An adjusting screw (5) is fixedly connected above the lower horizontal part (8). An upper horizontal part (6) is provided at the upper part of the middle of the adjusting screw (5). A first nut (7) is provided below and above the upper horizontal part (6). The upper horizontal part (6) is fixedly connected to the adjusting screw (5) by two first nuts (7).

2. The adjustable elevation pre-embedded anchor bolt for heavy steel columns according to claim 1, characterized in that: Each of the four angle steel columns (2) is fixedly connected with a horizontal angle steel (4) on each pair. The horizontal angle steel (4) is located near the lower end of the angle steel column (2), and the end of the horizontal angle steel (4) is fixedly connected to the outside of the angle steel column (2).

3. The adjustable elevation pre-embedded anchor bolt for heavy steel columns according to claim 2, characterized in that: The upper steel plate (1) has first bolt holes at its four corners and two second bolt holes on each side of its sides. The central steel plate (3) has three bolt holes at its four corners that correspond to the first bolt holes, and two fourth bolt holes on each side of the central steel plate (3) that correspond to the second bolt holes.

4. The adjustable elevation pre-embedded anchor bolt for heavy steel columns according to claim 3, characterized in that: Anchor bolts (9) are inserted into the first bolt hole and the third bolt hole directly below the first bolt hole. Anchor bolts (9) are inserted into the second bolt hole and the fourth bolt hole directly below the second bolt hole. A second nut (10) is provided above and below the upper steel plate (1) of the anchor bolt (9). A third nut (11) is provided below the middle steel plate (3) of the anchor bolt (9). The third nut (11) is located at the lower end of the anchor bolt (9). Two fourth nuts (12) are provided at the upper end of the anchor bolt (9).

5. The adjustable elevation pre-embedded anchor bolt for heavy steel columns according to claim 4, characterized in that: The upper steel plate (1) has an upper concrete pouring hole in the middle, and the middle steel plate (3) has a middle concrete pouring hole corresponding to the middle of the upper steel plate (1). The upper concrete pouring hole and the middle concrete pouring hole are the same size.

6. The adjustable elevation pre-embedded anchor bolt for heavy steel columns according to claim 5, characterized in that: The lower end of the adjusting screw (5) is inserted into the lower horizontal part (8), and the area of ​​the lower horizontal part (8) is larger than the area of ​​the upper horizontal part (6).

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