Fastening assembly for steel structure connecting point of electric power iron tower

Abstract

The invention relates to the technical field of steel structures, and provides an electric iron tower steel structure connecting point fastening assembly which comprises a connecting piece and a vertical rod installed in the connecting piece. Adjusting structures are arranged on the two sides of the inner wall of the connecting piece, inclined rods are installed at one ends of the adjusting structures, and bolts are installed at the connecting positions of the connecting piece and the vertical rods. The adjusting structure is arranged, the fixing pieces are arranged on the inner side walls of the connecting pieces, rotation adjustment can be conducted to a proper angle according to the requirements of a construction site, and then the two sides of the fixing pieces are supported through screws and other assemblies, so that the stability between the fixing pieces and the connecting pieces is guaranteed; and then the inclined rod and the connecting piece are fixed through the bolt, so that the steel structure connecting point assembly can adjust the inclination angle of the bolt hole at will according to the use requirement, it is ensured that connection between the inclined rod and a main structure is tighter and firmer, the steel structure connecting point assembly more flexibly adapts to the field environment and construction conditions, and the construction difficulty and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, and particularly relates to a fastening component for a connection point of a steel structure of a power transmission tower. Background Art

[0002] A power transmission tower is a three-dimensional structure used to support conductors and lightning protection wires of high-voltage or extra-high-voltage overhead transmission lines. Its structural feature is that various tower types belong to space truss structures, and the members are mainly composed of single equal-angle steel bars or combined angle steel bars. The connections between the members are made with rough bolts, and the connection is achieved by the bolts bearing shear force. The whole tower is composed of angle steel, connecting steel plates and bolts. Individual components such as tower feet are welded from several steel plates into a combined component. During the assembly process of these components, a special fastening component is required to play a fixing role at the connection parts between them;

[0003] For traditional fastening components for connection points of steel structures of power transmission towers, since the assembly angles between the diagonal bars and the vertical bars in the steel structures of power transmission towers are not always consistent, connection pieces with bolt holes in different inclined states are required for the connection and assembly of the members, resulting in the need to constantly replace the connection pieces during the construction process, thus being unable to flexibly adapt to the on-site construction and increasing the construction difficulty. Summary of the Invention

[0004] The purpose of the present invention is to provide a fastening component for a connection point of a steel structure of a power transmission tower to solve the defect of insufficient flexibility of the existing fastening component for a connection point of a steel structure of a power transmission tower.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A fastening component for a connection point of a steel structure of a power transmission tower, including a connection piece and a vertical bar installed inside it; adjustment structures are provided on both sides of the inner wall of the connection piece, and diagonal bars are installed at one ends of the adjustment structures. Bolts are installed at the connection between the connection piece and the vertical bar, and limiting structures are provided on the outer walls of the connection piece outside the bolts. Reinforcing blocks are fixed on both sides of the outer wall of the connection piece; the adjustment structure includes a bottom plate, a screw, a fixing piece, a fixing block, a locking block, an upper gasket, a limiting groove and a second helical tooth; the bottom plates are installed at the top and bottom of both sides of the inner wall of the connection piece, screws penetrate through the interiors of the bottom plates, fixing blocks are welded at the ends of the screws, upper gaskets are installed at the top and bottom of the screws, locking blocks are installed at the opposite ends of the upper gaskets, second helical teeth are provided at the opposite ends of the locking blocks, limiting grooves are provided at the top and bottom ends of the bottom plates, and fixing pieces are installed on the inner wall of the connection piece between the screws.

[0006] Preferably, the limiting structure includes a limiting frame, a connecting seat and a base. The connecting seats are welded on both sides of the outer wall of the connection piece, and bases are provided at the bottoms of the connecting seats.

[0007] Preferably, a limiting frame is installed inside the connecting seat, and limiting plates are installed on both sides of the limiting frame, and a sliding structure is formed between the connecting seat and the limiting frame.

[0008] Preferably, the screw and the locking block are threadedly connected, and a rotating structure is formed between the fixing plate and the connecting plate.

[0009] Preferably, a fixing cylinder is arranged inside the fixing plate, and sliding rails are arranged on the side walls of the connecting plate outside the fixing cylinder.

[0010] Preferably, fixing grooves are provided on both sides of the fixing plate, and a sliding structure is formed between the fixing grooves and the fixing blocks.

[0011] Preferably, a lower gasket is installed at one end of the upper gasket, and a limiting column is provided at the end of the lower gasket away from the upper gasket, a clamping structure is formed between the limiting column and the limiting groove, and a connecting groove is provided at the end of the lower gasket opposite to the upper gasket.

[0012] Preferably, movable columns are provided inside the connecting grooves, and movable grooves are installed at the bottom ends of the upper gaskets outside the movable columns, a sliding structure is formed between the movable columns and the movable grooves, and springs are installed inside the connecting grooves outside the movable grooves.

[0013] Preferably, the end of the upper gasket away from the lower gasket is provided with a first oblique tooth, and the lines between the first oblique tooth and the second oblique tooth are opposite, and pressure plates are installed on both sides of the upper gasket.

[0014] Preferably, a nut is installed at one end of the bolt, and the nut and the bolt are threadedly connected, a gasket is provided at the inner end of the nut, and rubber rings are provided at both ends of the gasket.

[0015] Compared with the prior art, the invention has the following beneficial effects: the fastening assembly for the connection point of the steel structure of the power tower can adjust the inclination angle of the bolt hole according to the construction requirements during the installation process, so that the fastening assembly is more flexible and has improved applicability, and the locking nut is limited by the limiting piece to effectively avoid the loosening phenomenon and enhance the stability of the structure;

[0016] 1. By providing an adjustment structure, a fixing plate is provided on the inner wall of the connecting plate, which can be rotated and adjusted to a suitable angle according to the needs of the construction site, and then screws and other components are used to support both sides of the fixing plate, so that the stability between the fixing plate and the connecting plate is guaranteed, and then the inclined rod and the connecting plate are fixed by bolts, so that the steel structure connection point assembly can adjust the inclination angle of the bolt hole at will according to the use requirements, ensuring that the connection between the inclined rod and the main structure is tighter and more stable, more flexibly adapting to the site environment and construction conditions, and reducing the construction difficulty and cost;

[0017] Furthermore, the screw plays a supporting role for the fixing piece, and the screw and the bottom plate are fixed and locked by two groups of locking blocks and upper gaskets. There are second helical teeth and first helical teeth arranged between the locking blocks and the upper gaskets. After the locking blocks are locked, the tooth patterns between them are engaged, so as to prevent the locking blocks from loosening and ensure the stability of the fixing piece.

[0018] 2. By setting a limiting structure, after the connecting piece and the vertical rod are assembled with bolts, the limiting frame is inserted to both sides of the nut. The limiting pieces correspond to the position of the nut, and a group of corresponding limiting pieces are symmetrically angled with respect to the nut. The limiting pieces are pulled to fit with the edge of the nut. The limiting pieces are made of steel structure and have a certain hardness, so as to effectively prevent the nut from loosening due to slight vibration, ensure the stability of the structure, and avoid the deformation of the iron tower under external forces such as wind force and temperature change. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a rear three-dimensional structural schematic diagram of the present invention;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the vertical rod in the disassembled state of the present invention;

[0022] Figure 4 It is a top three-dimensional structural schematic diagram of the connecting piece of the present invention;

[0023] Figure 5 It is a rear three-dimensional structural schematic diagram of the connecting piece of the present invention;

[0024] Figure 6 It is a bottom three-dimensional structural schematic diagram of the connecting piece of the present invention;

[0025] Figure 7 It is a top three-dimensional structural schematic diagram of the screw of the present invention;

[0026] Figure 8 It is a bottom three-dimensional structural schematic diagram of the screw of the present invention;

[0027] Figure 9 It is a three-dimensional structural schematic diagram of the locking block of the present invention;

[0028] Figure 10 It is a top three-dimensional structural schematic diagram of the upper gasket of the present invention;

[0029] Figure 11 It is a bottom three-dimensional structural schematic diagram of the upper gasket of the present invention;

[0030] Figure 12 It is a three-dimensional structural schematic diagram of the bolt of the present invention;

[0031] Figure 13 This is a three-dimensional structural schematic diagram of the limit frame of the present invention.

[0032] Explanation of the reference numerals in the figure: 1, connecting piece; 2, limiting structure; 21, limit frame; 22, connecting seat; 23, base; 24, limiting piece; 3, vertical rod; 4, inclined rod; 5, adjusting structure; 51, bottom plate; 52, screw; 53, fixing piece; 531, fixing cylinder; 532, slide rail; 533, fixing groove; 54, fixing block; 55, locking block; 56, upper gasket; 561, lower gasket; 562, first helical tooth; 563, limiting column; 564, pressing plate; 565, connecting groove; 566, spring; 567, movable column; 568, movable groove; 57, limiting groove; 58, second helical tooth; 6, bolt; 61, cushion ring; 62, nut; 63, rubber ring; 7, strengthening block. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1-13 , a fastening assembly for a connection point of a steel structure of a power transmission tower provided by the present invention includes a connecting piece 1 and a vertical rod 3 installed inside it; adjusting structures 5 are arranged on both sides of the inner wall of the connecting piece 1, and inclined rods 4 are installed at one ends of the adjusting structures 5. Bolts 6 are installed at the connection points of the connecting piece 1 and the vertical rod 3, and limiting structures 2 are arranged on the outer walls of the connecting piece 1 outside the bolts 6. Strengthening blocks 7 are fixed on both sides of the outer wall of the connecting piece 1. The limiting structure 2 includes a limit frame 21, a connecting seat 22 and a base 23. The connecting seats 22 are welded to both sides of the outer wall of the connecting piece 1. Bases 23 are arranged at the bottoms of the connecting seats 22. Limit frames 21 are installed inside the connecting seats 22, and limiting pieces 24 are installed on both sides inside the limit frames 21. A sliding structure is formed between the connecting seats 22 and the limit frames 21. Nuts 62 are installed at one ends of the bolts 6, and the nuts 62 are threadedly connected to the bolts 6. Cushion rings 61 are arranged at the inner ends of the nuts 62, and rubber rings 63 are arranged at both ends of the cushion rings 61;

[0035] Refer to Figure 1 , Figure 3 , Figure 5 , Figure 12 and Figure 13As shown, when the device is used, the connecting piece 1 and the vertical rod 3 are first assembled, and the bolts 6 are respectively passed through the bolt holes of the vertical rod 3 and the connecting piece 1. Then, the gasket 61 is inserted first and then the locking nut 62 is rotated so that the nut 62 squeezes the gasket 61 and fits tightly with the connecting piece 1. The rubber rings 63 arranged at both ends of the gasket 61 have elasticity and resilience performance that can compensate for the displacement of the bolts and nuts caused by loosening or wear during long-term use, thereby maintaining the tightness of the connection. After all the nuts 62 are fixed, the limit frame is 21 is inserted from the connection seat 22 into the interior of the base 23, so that the limit frame 21 is located on both sides of the nut 62, and the limit sheet 24 on its inner wall corresponds to the position of the nut 62. The worker uses pliers to move the limit sheet 24 to the side wall of the nut 62, so that both sides thereof are in contact with the limit sheet 24. Since the nut 62 is hexagonal in shape, the setting of the limit sheet 24 can prevent the nut 62 from rotating, thereby enhancing the stability of the structure and preventing loosening. The reinforcing block 7 arranged on the outer side of the connection sheet 1 makes the connection sheet 1 more solid;

[0036] The adjustment structure 5 includes a bottom plate 51, screws 52, a fixing sheet 53, a fixing block 54, a locking block 55, an upper gasket 56, a limiting groove 57 and a second oblique tooth 58; the bottom plate 51 is installed at the top and bottom of the inner wall of the connecting sheet 1 on both sides, the bottom plate 51 is penetrated by screws 52, and the ends of the screws 52 are welded with fixing blocks 54, the top and bottom of the screws 52 are installed with upper gaskets 56, and the opposite end of the upper gasket 56 is installed with locking blocks 55, and the opposite end of the locking blocks 55 is provided with second oblique teeth 58, the top and bottom of the bottom plate 51 are provided with limiting grooves 57, the inner wall of the connecting sheet 1 between the screws 52 is installed with fixing sheets 53, the screws 52 and the locking blocks 55 are threadedly connected, and a rotating structure is formed between the fixing sheet 53 and the connecting sheet 1, the fixing sheet 53 is provided with a fixing cylinder 531, and the side walls of the connecting sheet 1 outside the fixing cylinder 531 are provided with slide rails 532, and the fixing sheet Both sides of 53 are provided with fixed grooves 533, and a sliding structure is formed between the fixed grooves 533 and the fixed blocks 54, a lower gasket 561 is installed at one end of the upper gasket 56, and a limiting column 563 is provided at one end of the lower gasket 561 away from the upper gasket 56, and a clamping structure is formed between the limiting column 563 and the limiting groove 57, a connecting groove 565 is provided at one end of the lower gasket 561 opposite to the upper gasket 56, a movable column 567 is provided inside the connecting groove 565, and a movable groove 568 is installed at the bottom end of the upper gasket 56 outside the movable column 567, a sliding structure is formed between the movable column 567 and the movable groove 568, a spring 566 is installed inside the connecting groove 565 outside the movable groove 568, a first oblique tooth 562 is provided at one end of the upper gasket 56 away from the lower gasket 561, and the lines between the first oblique tooth 562 and the second oblique tooth 58 are opposite, and a pressing plate 564 is installed on both sides of the upper gasket 56;

[0037] ReferenceFigure 2 , Figure 6 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown in Figure 11 , when the device is in use, after the connecting piece 1 is fixed to the vertical rod 3, rotate the fixing piece 53 to adjust to an angle suitable for the construction site, and then jack up the screw 52 at the bottom so that the fixing block 54 plays a supporting role inside the fixing groove 533 on the side wall of the fixing piece 53. After the position is appropriate, rotate the locking block 55 above the screw 52 to move downward, and insert the limiting post 563 under the upper gasket 56 at its top into the limiting groove 57 at the top of the bottom plate 51, and then continue to rotate to closely fit with the bottom plate 51. The first helical teeth 562 at the top of the upper gasket 56 and the second helical teeth 58 at the bottom of the locking block 55 have opposite tooth patterns. When the locking block 55 rotates downward, due to the opposite tooth patterns, a tooth slipping phenomenon occurs under the action of the rotational force, so it does not affect locking. When locking, a gap is reserved between the upper gasket 56 and the lower gasket 561, and the gap is approximately the same as the height of the tooth pattern of the first helical teeth 562. The spring 566 in the lower gasket 561 pushes the upper gasket 56 to squeeze the locking block 55 through elastic force, so that the first helical teeth 562 and the second helical teeth 58 are engaged with each other, and the patterns between them are engaged, so that the locking block 55 cannot reverse. Then, fix the locking block 55 at the bottom of the screw 52 in the same way, so that the screw 52 and the bottom plate 51 are fixed. Then, insert the screw 52 at the top of the fixing piece 53 into the fixing groove 533, and lock the locking block 55 again to achieve fixation. Press both ends of the fixing piece 53 to support, increasing its stability. After the fixing piece 53 is fixed, use the bolt 6 to pass through the inclined rod 4 and the fixing cylinder 531 in turn to assemble and fix the inclined rod 4 and the connecting piece 1. When it is necessary to loosen the locking block 55 to adjust the angle of the fixing piece 53, press the pressing plate 564 to drive the upper gasket 56 to approach the lower gasket 561, so that the first helical teeth 562 are separated from the second helical teeth 58, and then the locking block 55 can be rotated to be loosened.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fastening component for the connection point of the steel structure of a power transmission tower, comprising a connecting piece (1) and a vertical rod (3) installed inside it; It is characterized in that: Adjusting structures (5) are arranged on both sides of the inner wall of the connecting piece (1), and inclined rods (4) are installed at one ends of the adjusting structures (5). Bolts (6) are installed at the connection parts of the connecting piece (1) and the vertical rod (3), and limiting structures (2) are arranged on the outer walls of the connecting piece (1) on the outer side of the bolts (6). Reinforcing blocks (7) are fixed on both sides of the outer wall of the connecting piece (1); The adjusting structure (5) includes a bottom plate (51), a screw (52), a fixing piece (53), a fixing block (54), a locking block (55), an upper gasket (56), a limiting groove (57) and a second helical tooth (58); The bottom plates (51) are installed at the top and bottom of both sides of the inner wall of the connecting piece (1). Screws (52) penetrate through the interiors of the bottom plates (51), and fixing blocks (54) are welded to the ends of the screws (52). Upper gaskets (56) are installed at the top and bottom of the screws (52), and locking blocks (55) are installed at the opposite ends of the upper gaskets (56). Second helical teeth (58) are arranged at the opposite ends of the locking blocks (55). Limiting grooves (57) are arranged at the top and bottom ends of the bottom plates (51). Fixing pieces (53) are installed on the inner walls of the connecting piece (1) between the screws (52).

2. The fastening assembly for the connection point of the steel structure of a power transmission tower according to claim 1, wherein: The limiting structure (2) includes a limiting frame (21), a connecting seat (22) and a base (23). The connecting seats (22) are welded to both sides of the outer wall of the connecting piece (1), and bases (23) are arranged at the bottoms of the connecting seats (22).

3. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 2, characterized in that: Limiting frames (21) are installed inside the connecting seats (22), and limiting pieces (24) are installed on both sides inside the limiting frames (21). A sliding structure is formed between the connecting seats (22) and the limiting frames (21).

4. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 1, characterized in that: The screw (52) and the locking block (55) are in threaded connection, and a rotating structure is formed between the fixing piece (53) and the connecting piece (1).

5. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 1, characterized in that: A fixing cylinder (531) is arranged inside the fixing piece (53), and slide rails (532) are arranged on the side walls of the connecting piece (1) on the outer side of the fixing cylinder (531).

6. The fastening assembly for the connection point of the steel structure of a power transmission tower according to claim 1, characterized in that: Fixing grooves (533) are arranged on both sides of the fixing piece (53), and a sliding structure is formed between the fixing grooves (533) and the fixing blocks (54).

7. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 1, characterized in that: Lower gaskets (561) are installed at one ends of the upper gaskets (56), limiting columns (563) are arranged at the ends of the lower gaskets (561) away from the upper gaskets (56), a clamping structure is formed between the limiting columns (563) and the limiting grooves (57), and connecting grooves (565) are arranged at the opposite ends of the lower gaskets (561) and the upper gaskets (56).

8. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 7, characterized in that: The connecting grooves (565) are each provided with a movable column (567) inside, and a movable groove (568) is installed at the bottom end of the upper gasket (56) outside the movable column (567), a sliding structure is formed between the movable column (567) and the movable groove (568), and a spring (566) is installed inside the connecting grooves (565) outside the movable groove (568).

9. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 7, characterized in that: The upper gasket (56) is provided with a first oblique tooth (562) at one end away from the lower gasket (561), and the lines between the first oblique tooth (562) and the second oblique tooth (58) are opposite, and pressure plates (564) are installed on both sides of the upper gasket (56).

10. A fastening assembly for a connection point of a steel structure of a power transmission tower according to claim 1, characterized in that: A nut (62) is installed at one end of the bolt (6), and the nut (62) and the bolt (6) are threadedly connected. A gasket (61) is provided at the inner end of the nut (62), and rubber rings (63) are provided at both ends of the gasket (61).

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