Detachable large-section elevated iron tower

Abstract

The invention relates to the field of electric power and communication iron towers, in particular to a detachable large-section elevated iron tower which comprises a base, a bottom-layer tower section, a middle-layer tower section, a top-layer tower section, a top platform, an adapter, a climbing ladder and other modules, and the tower sections are connected through high-strength reamed hole bolts for reamed holes in stand columns. According to the technical scheme, the detachable overhead iron tower is of a modularized standard truss type structure, the height of a standard knot is 5 meters, and the height direction can be freely expanded and derived according to use requirements; the standard section can be commonly used with iron towers of 10 meters, 15 meters, 25 meters and the like, iron towers of different heights can be reconstructed by increasing or decreasing the height of the standard section, each iron tower section adopts a pin joint and bolt fastening mode, the tower sections with large root distance sections can be spliced, the splicing mode completely adopts a modular structure, the maximum boundary dimension and the weight of a hoisting unit are controlled, on-site rapid splicing is facilitated, and the construction cost is reduced. And guarantee requirements are reduced.

Description

Technical Field

[0001] The invention relates to an elevated iron tower with a detachable large-section structure, in particular to a detachable iron tower widely used in industries such as electric power, communication, radio and television. Background Art

[0002] The elevated iron tower provides an installation platform above the ground for the detection equipment, and also provides workspace, climbing stairs, equipment hoisting, handling channels and personnel maintenance channels for operators and installers. It is mainly used as a high-altitude platform for installing detection equipment in military, civilian and scientific research institutions. At present, most elevated iron towers adopt an integral welded structure, especially for iron towers with a root opening of more than 2.5 meters, which generally adopt a single-section integrated welding. The disassembly and installation process of this kind of iron tower is complicated, and the processing and transportation are extremely inconvenient. Therefore, it is necessary to develop a detachable iron tower that can meet conventional processing and transportation, is easy to disassemble and assemble on site, and can ensure that the various indicators of the elevated iron tower after installation are not lower than the structure of the integral welded fixed iron tower. Summary of the invention

[0003] The purpose of the present invention is to provide a detachable large-section elevated iron tower, aiming to overcome the defects of the prior art and solve the problem that most elevated iron towers currently use an integral welded structure, which has a complicated disassembly and installation process and is extremely inconvenient to process and transport.

[0004] To this end, the present invention proposes a detachable large-section elevated iron tower, comprising: a base, a bottom tower section, a top tower section, an adapter, a top platform and at least one middle tower section, wherein the bottom tower section is connected to the base, a adapter is installed in the middle of the top of the top tower section, the top platform is installed on the adapter, and required equipment is installed in the middle of the top platform, and the middle tower section is a connecting layer between the middle tower section and the top tower section, and the height of the elevated iron tower can be increased or decreased by increasing or decreasing the number of the middle tower sections.

[0005] As a preferred technical solution of the present application, the bottom tower section, the top tower section and the middle tower section all include four columns, side beams and escalators. The side beams are isosceles right triangle structures. A pair of the side beams are symmetrically arranged up and down and connected by bolts to form a cross structure, and then fixedly connected to two adjacent columns by bolts respectively, so that the bottom tower section, the top tower section and the middle tower section are all built into a rectangular shape.

[0006] As a preferred technical solution of the present application, the column includes a circular tube, a flange and a trapezoidal rib plate; a pair of the flanges are connected to the upper and lower ends of the circular tube by welding, and are reinforced and fixed by a number of trapezoidal rib plates; an annular boss is installed on the inner side of the upper end of the flange, and a concave block is installed on the inner side of the lower end of the flange, the annular boss of the column where the lower tower section is located and the concave block of the column where the upper tower section is located cooperate with each other to achieve initial positioning in the horizontal direction, and then the flange is tightened by bolts to achieve positioning in the vertical direction.

[0007] As a preferred technical solution of the present application, as a preferred technical solution of the present application, a pair of side beam ear plates are respectively provided at the upper and lower ends of the column, the side beam ear plates are fixed on the side wall of the circular tube, and the two side beam ear plates at the upper or lower end of the column are perpendicular to each other and are used to be connected to the side beam by bolts.

[0008] As a preferred technical solution of the present application, an annular rib plate is respectively provided at the upper and lower ends of the side beam ear plate, and the annular rib plate is welded to the side beam ear plate.

[0009] As a preferred technical solution of the present application, the upper and lower ends of the bottom tower section, the top tower section and the middle tower section are also provided with horizontally arranged adjustable inclined beams, the adjustable inclined beam at the upper end is perpendicular to the adjustable inclined beam at the lower end, and the two ends of the adjustable inclined beam are fixedly connected to the diagonal columns by bolts.

[0010] As a preferred technical solution of the present application, a diagonal support ear plate is also provided on the side wall of the circular tube, and the diagonal support ear plate is located between a pair of side beam ear plates. The two ends of the adjustable diagonal beam are fixedly connected to the diagonal support ear plates on the column by bolts, and an adjustment bolt with a bidirectional thread is provided on the adjustable diagonal beam.

[0011] As a preferred technical solution of the present application, fences are respectively provided around the bottom of the bottom tower section and the top tower section, and a ladder 2 extending in the vertical direction is provided inside the top tower section.

[0012] As a preferred technical solution of the present application, the adapter includes a crossbeam, a welding flange assembly, an octagonal connecting frame, and a small column; four groups of the crossbeams are distributed in a circular array, one inner end of the crossbeam is connected to the octagonal connecting frame by bolts, one outer end of the crossbeam is welded and fixed to the small column, the welding flange assembly is fixedly installed on the upper ends of the four groups of crossbeams, and a large number of connecting through holes are provided on the annular flange on the top of the welding flange assembly for bolting to the radar base at the upper end.

[0013] As a preferred technical solution of the present application, the top platform includes a regular hexagonal anti-slip bottom plate assembly and side guardrails. An annular avoidance hole is provided in the middle position of the anti-slip bottom plate assembly, and the annular avoidance hole facilitates the connection between the radar and the adapter; a lightning rod mounting plate is provided at the edge position of the anti-slip bottom plate assembly.

[0014] The detachable large-section elevated iron tower provided by the present invention has the following beneficial effects: 1. The modular components facilitate water and land transportation, installation and disassembly, greatly shortening the construction period; 2. Stable and reliable, it can reduce the risk of large stress caused by the overall welding of the tower section and welding deformation affecting the life of the tower body; 3. The connection between the components is completely pinned and bolted, and the assembly of large cross-section towers can be achieved by changing the size of individual components; 4. All components can be disassembled and have good interchangeability, which makes it convenient to ensure the required dimensional accuracy through conventional machining, and the adjustment of shape and position during on-site installation is easy to achieve; 5. The modular standard truss structure can meet customers' requirements for towers of different heights by combining the number of middle-level tower sections, and the height of the already built elevated tower can also be easily increased or decreased; 6. The iron tower with the structure spliced ​​together can be free of cracks, permanent deformation and damage when the cross-section root is 5 meters and the height is 25 meters without pulling windproof cables when the wind speed is ≤35 meters / second, and the area requirement for the site installation is low; 7. The detachable iron tower is provided with interlaced zigzag escalators inside to facilitate personnel to climb from the ground to the top of the tower for maintenance, inspection or installation.

[0015] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a structural schematic diagram of a detachable large-section elevated iron tower of the present invention; Figure 2 It is a schematic structural diagram of a middle-level tower section in a detachable large-section elevated iron tower of the present invention; Figure 3 It is a structural schematic diagram of a central column of a detachable large-section elevated iron tower according to the present invention; Figure 4It is a structural schematic diagram of the middle side beam of the detachable large-section elevated iron tower of the present invention; Figure 5 It is a schematic structural diagram of the bottom tower section of the detachable large-section elevated iron tower of the present invention; Figure 6 It is a structural schematic diagram of the top tower section in the detachable large-section elevated iron tower of the present invention; Figure 7 It is a structural schematic diagram of a detachable large-section transfer seat in an elevated iron tower according to the present invention; Figure 8 It is a structural schematic diagram of the top platform in the detachable large-section elevated iron tower of the present invention; Explanation of the reference numerals: 1. base; 2. middle tower section; 3. bottom tower section; 4. top tower section; 5. adapter; 6. top platform; 7. radar; 21. column; 22. side beam; 23. ladder; 24. adjustable inclined beam; 25. round tube; 26. flange; 27. annular boss; 28. concave block; 29. ​​diagonal brace ear plate; 210. side beam ear plate; 211. trapezoidal rib plate; 212. annular rib plate; 213. ladder; 214. adjusting bolt; 31. fence; 32. rotating iron gate; 41. ladder two; 42. protective grid plate; 51. crossbeam; 52. small column; 53. welded flange assembly; 54. octagonal connecting frame; 61. lightning rod mounting plate; 62. anti-slip bottom plate assembly. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] like Figure 1 to Figure 8 As shown, the detachable large-section elevated iron tower of the present invention comprises: a base 1, a bottom tower section 3, a top tower section 4, an adapter 5, a top platform 6 and at least one middle tower section 2, wherein the bottom tower section 3 is a connecting layer between the elevated iron tower and the base 1, the middle tower section 2 is a connecting layer between the bottom tower section and the top tower section 4 in the elevated iron tower, and the height of the elevated iron tower can be increased or decreased by increasing or decreasing the number of middle tower sections 2, the top tower section 4 is a connecting layer between the middle tower section 2 of the elevated iron tower and the top platform 6, an adapter 5 is installed in the middle of the top of the top tower section 4, the top platform 6 is installed on the adapter 5, and is a platform for installing equipment, personnel maintenance, and equipment operation of the elevated iron tower, and the required equipment is installed in the middle of the top platform 6.

[0019] Specifically, the bottom tower section 3, the top tower section 4 and the middle tower section 2 each include four columns 21, side beams 22 and an escalator 23. The side beams 22 are isosceles right triangle structures. A pair of side beams are symmetrically arranged up and down and connected by bolts to form a cross structure, and then fixedly connected to two adjacent columns by bolts respectively, so that the bottom tower section 3, the top tower section 4 and the middle tower section 2 are all built into a rectangular shape; the escalator 23 is a zigzag structure and is installed inside it by bolts.

[0020] In addition to the escalator 23, a ladder 213 extending in the vertical direction can also be used inside to replace or combine the two. The escalator is a way for people to climb the tower from the bottom tower. The ladder is a maintenance passage for people to enter the top installation equipment through the adapter.

[0021] like Figure 3 As shown, the column 21 includes a circular tube 25, a flange 26, an annular boss 27, a concave block 28, a diagonal brace ear plate 29, a side beam ear plate 210, a trapezoidal rib plate 211, and an annular rib plate 212. A pair of flanges 26 are connected to the upper and lower ends of the circular tube 25 by welding, and are reinforced and fixed by a plurality of trapezoidal rib plates 211; an annular boss 27 is installed on the inner side of the upper flange 26, and a concave block 28 is installed on the inner side of the lower flange 26. The annular boss 27 cooperates with the concave block 28 of the upper column to achieve initial positioning in the horizontal direction, and then the flange 26 is locked by bolts to achieve positioning in the vertical direction.

[0022] The side beam ear plate 210 is fixed on the side wall of the circular tube 25, and the two side beam ear plates 210 at the upper end or the lower end of the column are perpendicular to each other and are used to be connected to the side beam 22 by bolts; wherein, in order to increase the connection strength of the side beam ear plate 210, an annular rib plate 212 is respectively provided at the upper and lower ends of the side beam ear plate 210, and the annular rib plate 212 is welded to the side beam ear plate 210, so as to achieve the purpose of increasing the structural strength of the side beam ear plate 210.

[0023] In one embodiment, the upper and lower ends of the bottom tower section 3, the top tower section 4 and the middle tower section 2 are also provided with adjustable inclined beams 24, the adjustable inclined beams 24 are horizontally arranged, and the adjustable inclined beams 24 at the upper end are perpendicular to the adjustable inclined beams 24 at the lower end, and the two ends of the adjustable inclined beams 24 are fixedly connected to the diagonal columns 21 by bolts, thereby strengthening the structures of the bottom tower section 3, the top tower section 4 and the middle tower section 2.

[0024] Among them, a diagonal brace ear plate 29 is also provided on the side wall of the circular tube 25, and the diagonal brace ear plate 29 is located between a pair of side beam ear plates 210. The two ends of the adjustable diagonal beam 24 are fixedly connected to the diagonal brace ear plates 29 on the column 21 by bolts, and an adjusting bolt 214 with a bidirectional thread is provided on the adjustable diagonal beam 24. After the connection is completed, the adjusting bolt 214 on the adjustable diagonal beam is rotated to extend or shorten the length of the entire diagonal beam, and the four sides of the bottom tower section are adjusted to be right angles to achieve the required shape.

[0025] like Figure 5 As shown, a fence 31 is provided around the bottom of the bottom tower section 3, and a rotating iron door 32 is provided on the fence 31 to prevent unauthorized persons from entering the tower.

[0026] like Figure 6 As shown, the top tower section 4 is also surrounded by fences 31, and a protective grid plate 42 is provided at the bottom of the top tower section 4 to prevent objects or people from falling from above. The inside of the top tower section 4 is also provided with a ladder 41 extending in the vertical direction and passing through the top platform 6, so that the staff can climb up to the top platform 6 to work.

[0027] like Figure 7 As shown, the adapter 5 includes a crossbeam 51, a welding flange assembly 53, an octagonal connection frame 54, and a small column 52; four groups of crossbeams 51 are distributed in a circular array, one inner end of the crossbeam 51 is connected to the octagonal connection frame 54 by bolts, and one outer end of the crossbeam 51 is welded and fixed to the small column 52, and the welding flange assembly 53 is fixedly installed on the upper end of the four groups of crossbeams 51. At the same time, a large number of connecting through holes are provided on the annular flange on the top of the welding flange assembly 53, which is used to be bolted to the radar 7 base at the upper end.

[0028] like Figure 8 As shown, the top platform 6 includes a regular hexagonal anti-skid base plate assembly 62 and side guardrails. The anti-skid base plate assembly 62 is composed of several rectangular anti-skid plates spliced ​​together by bolts or connecting buckles; an annular avoidance hole is provided in the middle position of the anti-skid base plate assembly 62, and the annular avoidance hole facilitates the connection between the radar 7 and the adapter 5; a lightning rod mounting plate 61 is provided at the edge position of the anti-skid base plate assembly 62.

[0029] The working principle and working process of the detachable large-section elevated iron tower of the present invention are briefly described below.

[0030] The present invention relates to the field of electric power and communication iron towers, and in particular to a detachable large-section elevated iron tower, which comprises a base, a bottom tower section, a middle tower section, a top tower section, a top platform, an adapter, a climbing ladder and other modules, wherein the tower sections are connected by high-strength bolts through hinged holes on columns.

[0031] The bottom tower section is the connection layer between the elevated iron tower and the foundation, and the middle tower section is the connection layer between the bottom tower section and the top tower section in the elevated iron tower. The height of the elevated iron tower can be increased or decreased by increasing or decreasing the number of the middle tower sections. The middle tower sections, the middle tower sections and the bottom tower sections, and the middle tower sections and the top tower sections are all connected by high-strength bolts; the top tower section is the connection layer between the middle tower section and the top platform of the elevated iron tower. An adapter is installed in the middle of the top of the top tower section, which can be used to install the required equipment; the top tower section is connected to the top platform and the adapter by high-strength bolts; The top platform is the platform for installing equipment, personnel maintenance, and equipment operation of the elevated iron tower. The required equipment is installed in the middle of the top platform. A small electric crane can be installed under the platform to facilitate lifting small heavy objects from the ground to the top tower section. A crane can be installed on the top platform to lift equipment from the ground to the top platform. The top platform is mainly composed of guardrails, anti-slip floors, lightning rod installation plates, etc.

[0032] The bottom tower section 3, top tower section 4 and middle tower section 2 are all composed of columns, side beams, adjustable diagonal beams, guardrails, escalators, etc. The columns and side beams, side beams and side beams, and adjustable diagonal beams and columns are connected by high-strength bolts. The sizes of the four columns need to be ensured to be consistent through mechanical processing. After the connection is completed, the adjusting bolts on the adjustable diagonal beams are turned to extend or shorten the length of the entire diagonal beam, and the four sides of the bottom tower section 3, top tower section 4 and middle tower section 2 are adjusted to be right angles to achieve the required appearance; the surrounding guardrails prevent unauthorized personnel from entering the tower; the escalator is the way for personnel to climb the tower from the bottom tower to the top; the ladder is the maintenance passage for personnel to enter the top installation equipment through the adapter.

[0033] Each tower section is composed of columns, side beams, and adjustable diagonal beams. Each component is connected by pins and bolts (see attached for details). Figure 3 ), the connection points are all pin holes, and the connecting bolts are hexagonal head reamed hole bolts, which can play a role in accurate positioning and firm connection. The adjustment of the external shape of the tower section relies on the adjustable inclined beam connected between the two columns. The extension or shortening of the adjustable inclined beam relies on the screwing of the external thread and internal thread of one section with the other section through the adjusting bolt. The length of the beam is adjusted by the screwing depth. After adjustment, tighten the locking nuts at both ends of the adjusting bolt to prevent the adjusting bolt from loosening. The anti-loosening measures used in the connection are: using fine-thread bolts for reamed holes, and the nuts screwed with them are fine-thread thickened nuts to increase the screwing length.

[0034] The present application is implemented with the following scheme: a detachable elevated iron tower, adopting a modular standard truss structure, with a standard section height of 5 meters, and the height direction can be freely expanded and derived according to the use requirements; the standard section can be used with 10-meter, 15-meter, 25-meter and other iron towers, and towers of different heights can be reconstructed by increasing or decreasing the standard section height. Each section of the iron tower is pin-connected and bolt-fastened, and large open-section tower sections can be spliced. The splicing form adopts a completely modular structure, which controls the maximum external dimensions and weight of the lifting unit, facilitates rapid assembly on site, and reduces security requirements.

[0035] The following matters should be noted when installing the elevated iron tower in this application: 1. The bottom tower section, middle tower section and top tower section are assembled separately before the final assembly. When installing each tower section, the shape, position and size need to be adjusted to meet the matching requirements between the layers and ensure the verticality and torsion of the tower body.

[0036] 2. During on-site installation, use the steel wire rope on the crane to fix the four lifting points on the upper part of each layer. Only lift after maintaining balance. The crane can lift more than 5 tons.

[0037] 2. After the upper and lower tower sections are spliced, the verticality and distortion of the tower body must be checked. Only when the requirements are met can the upper tower section be installed. Otherwise, it must be adjusted into place using the gasket method.

[0038] 3. After all tower sections are installed, check the verticality, torsion of the tower body and the horizontality of the installation base surface of the tower top equipment to ensure that the torsion is ≤5', the verticality is ≤5', and the horizontality of the installation base surface is ≤5'.

[0039] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable large-section elevated iron tower, characterized in that: include: A base (1), a bottom tower section (3), a top tower section (4), an adapter (5), a top platform (6) and at least one middle tower section (2), The bottom tower section (3) is connected to the base (1); a transfer seat (5) is installed in the middle of the top of the top tower section (4); the top platform (6) is installed on the transfer seat (5); required equipment is installed in the middle of the top platform (6); the middle tower section (2) is a connecting layer between the middle tower section (2) and the top tower section (4); and the height of the elevated iron tower can be increased or decreased by increasing or decreasing the number of the middle tower sections (2).

2. The detachable large-section elevated iron tower according to claim 1, characterized in that: The bottom tower section (3), the top tower section (4) and the middle tower section (2) all comprise four columns (21), side beams (22) and a ladder (23); the side beams (22) are isosceles right triangle structures; a pair of the side beams (22) are symmetrically arranged up and down and connected by bolts to form a cross structure, and are then fixedly connected to two adjacent columns (21) by bolts, so that the bottom tower section (3), the top tower section (4) and the middle tower section (2) are all built into a rectangular parallelepiped shape.

3. The detachable large-section elevated iron tower according to claim 2, characterized in that: The column (21) comprises a circular tube (25), a flange (26) and a trapezoidal rib plate (211); a pair of the flanges (26) are connected to the upper and lower ends of the circular tube (25) by welding, and are reinforced and fixed by a plurality of trapezoidal rib plates (211); An annular boss (27) is installed on the inner side of the upper flange (26), and a concave block (28) is installed on the inner side of the lower flange (26). The annular boss (27) of the column (21) where the lower tower section is located cooperates with the concave block (28) of the column (21) where the upper tower section is located to achieve initial positioning in the horizontal direction, and then the flange (26) is locked by bolts to achieve positioning in the vertical direction.

4. The detachable large-section elevated iron tower according to claim 3, characterized in that: A pair of side beam lug plates (210) are respectively provided at the upper and lower ends of the column (21), the side beam lug plates (210) are fixed to the side walls of the circular tube (25), and the two side beam lug plates (210) at the upper or lower end of the column are perpendicular to each other and are used to be connected to the side beam (22) by bolts.

5. The detachable large-section elevated iron tower according to claim 4, characterized in that: An annular rib plate (212) is respectively provided at the upper and lower ends of the side beam ear plate (210), and the annular rib plate (212) is welded to the side beam ear plate (210).

6. The detachable large-section elevated iron tower according to claim 4, characterized in that: The upper and lower ends of the bottom tower section (3), the top tower section (4) and the middle tower section (2) are also provided with horizontally arranged adjustable inclined beams (24); the upper adjustable inclined beam (24) and the lower adjustable inclined beam (24) are skewed and perpendicular, and both ends of the adjustable inclined beam (24) are fixedly connected to the diagonal columns (21) by bolts.

7. The detachable large-section elevated iron tower according to claim 6, characterized in that: The side wall of the circular tube (25) is also provided with an inclined brace ear plate (29), and the inclined brace ear plate (29) is located between a pair of side beam ear plates (210). Both ends of the adjustable inclined beam (24) are fixedly connected to the inclined brace ear plates (29) on the column (21) by bolts, and an adjusting bolt (214) with a bidirectional thread is provided on the adjustable inclined beam (24).

8. The detachable large-section elevated iron tower according to claim 2, characterized in that: The bottom of the bottom tower section (3) and the top tower section (4) are respectively provided with fences (31) around their peripheries, and the inside of the top tower section (4) is provided with a second ladder (41) extending in the vertical direction.

9. The detachable large-section elevated iron tower according to claim 2, characterized in that: The adapter (5) comprises a crossbeam (51), a welding flange assembly (53), an octagonal connection frame (54), and a small column (52); four groups of the crossbeams (51) are distributed in a circular array, one inner end of the crossbeam (51) is connected to the octagonal connection frame (54) by bolts, one outer end of the crossbeam (51) is welded and fixed to the small column (52), and the welding flange assembly (53) is fixedly mounted on the upper ends of the four groups of crossbeams (51). At the same time, a large number of connecting through holes are provided on the annular flange at the top of the welding flange assembly (53) for bolting to the radar (7) base at the upper end.

10. The detachable large-section elevated iron tower according to claim 9, characterized in that: The top platform (6) comprises a regular hexagonal anti-skid bottom plate component (62) and side guardrails; an annular avoidance hole is provided in the middle of the anti-skid bottom plate component (62), and the annular avoidance hole facilitates the connection between the radar (7) and the adapter (5); and a lightning rod mounting plate (61) is provided at the edge of the anti-skid bottom plate component (62).

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