Single angle steel and cross-shaped double-combination angle steel conversion structure of power transmission angle steel tower

Abstract

The utility model discloses a single angle steel and cross-shaped double-combination angle steel conversion structure of a power transmission angle steel tower, and relates to the technical field of power transmission angle steel towers. The problems that in the prior art, a single-angle-steel and double-angle-steel conversion joint is large in welding workload, large in weight after welding, difficult to convert and low in connection strength are solved. First bolts penetrate through the corresponding first through holes to fixedly connect the first internally-wrapped angle steel, the second internally-wrapped angle steel, the third internally-wrapped angle steel, the single-angle steel and the cross-shaped double-angle steel. The single-angle steel and cross-shaped double-combination angle steel conversion structure for the power transmission angle steel tower is used for single-angle steel and double-angle steel conversion installation of the power transmission angle steel tower, the single-angle steel and the cross-shaped double-angle steel are fixedly connected through the conversion nodes by adopting the wrapping angle steel and the bolts, installation and conversion are simple, and a bolt connection structure with the small welding amount and the light weight of a single piece is formed; and by arranging the first internally-wrapped angle steel, the second internally-wrapped angle steel and the third internally-wrapped angle steel, the limb walls of the single-angle steel and the cross-shaped double-angle steel are connected in a double-face mode, the connection strength is high, and connection is more stable and firmer.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission angle steel tower technical field especially a kind of power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure. BACKGROUND

[0002] With the increase of electric power energy demand, the construction of a large number of high-voltage transmission line projects, high voltage grade, large wire section, load grade is greatly improved, and because of transportation difficulties in mountainous areas, steel pipe tower cannot be used, and conventional angle steel tower is still mainly used, and at the same time, due to the requirement of topography or water conservation, the height of the iron tower is greatly increased, so a large number of iron towers use double angle steel. At present, the conversion node of the angle steel tower single angle steel and double angle steel of the transmission line mainly uses conversion welded seat plate to realize, i.e. the boot plate is welded on the seat plate to connect the single angle steel, and the boot plate is welded under the seat plate to connect the double angle steel. The current structure mainly has the following problems: 1. The seat plate and the boot plate are welded, the welding work is large, and a large number of plates are mutually welded, so the welding precision and deformation are difficult to control; 2. The upper and lower boot plates are welded on the seat plate, and a stiffening plate is also needed, which leads to large overall weight, large weight difference of different specifications of angle steel, up to more than 3 tons, transportation and installation are very difficult, and the safety risk is high; 3. After the seat plate and the boot plate are welded, the overall size is large, the plate thickness difference is large, and there are welding plate corners, galvanizing is difficult, and the quality is not easy to guarantee. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a kind of power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure, welding is less, weight is small, safety risk is low, connection quality is high, it is convenient for single angle steel and cross double combined angle steel conversion connection.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] The utility model discloses a power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure, including single angle steel and cross double angle steel, the single angle steel is located cross double angle steel's top, the inside wall of two limbs arms of single angle steel is respectively with the outside wall of corresponding limb arm of cross double angle steel coplanar, the first inner baling steel is arranged between the two limbs arms of single angle steel, the upper end outside wall of two limbs arms of first inner baling steel is respectively with the inside wall of two limbs arms of single angle steel, the lower end outside wall of two limbs arms of first inner baling steel is respectively with the outside wall of corresponding limb arm of cross double angle steel, the second inner baling steel and third inner baling steel are respectively arranged between the two limbs arms of corresponding angle steel of cross double angle steel, the upper end outside wall of limb arm of second inner baling steel and third inner baling steel close to single angle steel is respectively with the outside wall of corresponding limb arm of single angle steel, the lower end outside wall of limb arm of second inner baling steel and third inner baling steel away from single angle steel is respectively with the inside wall of corresponding limb arm of cross double angle steel, first inner baling steel, second inner baling steel, third inner baling steel, single angle steel and cross double angle steel all are provided with corresponding first through -hole, still include with first through -hole cooperation's first bolt, first bolt passes through corresponding first through -hole and will first inner baling steel, second inner baling steel, third inner baling steel, single angle steel, cross double angle steel fixed connection.

[0006] Further, the upper end of the limb arm of the second inner baling steel and the third inner baling steel close to the single angle steel is provided with a first spacer plate between the limb arm of the corresponding cross double angle steel, the first spacer plate is provided with a corresponding first through hole, and the first bolt passes through the corresponding first through hole to fixedly connect the second inner baling steel, the third inner baling steel, the first spacer plate, and the cross double angle steel.

[0007] Further, the first spacer plate is a steel plate, and the thickness value of the first spacer plate is the same as the difference between the limb arm thickness value of the single angle steel and the limb arm thickness value of the cross double angle steel.

[0008] Further, two L-shaped fixing plates are arranged between the limb arms of the two angle steels of the cross double angle steel away from the limb arm of the single angle steel, the end of the short side of the fixing plate is welded with the first inner baling steel, the long side of the two fixing plates is respectively located at the upper end outside of the limb arm of the second inner baling steel and the third inner baling steel away from the single angle steel, the corresponding limb arm of the fixing plate, the second inner baling steel and the third inner baling steel is provided with a second through hole, and a second bolt matched with the second through hole is further included, and the second bolt passes through the corresponding second through hole to fixedly connect the fixing plate, the second inner baling steel and the third inner baling steel.

[0009] Further, the two fixing plates have gaps between the distal limbs of the second inner angle steel and the third inner angle steel away from the single angle steel, and second spacers are arranged between the fixing plates and the limbs of the second inner angle steel and between the fixing plates and the limbs of the third inner angle steel, the second spacers are provided with corresponding second through holes, and the second bolts pass through the corresponding second through holes to fixedly connect the fixing plates, the second spacers, the second inner angle steel and the third inner angle steel.

[0010] Further, the second spacers are steel plates, and the thickness of the second spacers is the same as the thickness of the limbs of the cross double angle steel.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The single angle steel and the cross double combined angle steel conversion structure of the application is used for fixedly installing the conversion joint of the single angle steel and the double angle steel of the power transmission angle steel tower. The outer side walls of the upper ends of the two limbs of the first inner angle steel are respectively attached to the inner side walls of the two limbs of the single angle steel, and the outer side walls of the lower ends of the two limbs of the first inner angle steel are respectively attached to the outer side walls of the limbs of the cross double angle steel adjacent to the single angle steel. The outer side walls of the upper ends of the limbs of the second inner angle steel and the third inner angle steel adjacent to the single angle steel are respectively attached to the outer side walls of the corresponding two limbs of the single angle steel. The outer side walls of the lower ends of the limbs of the second inner angle steel and the third inner angle steel away from the single angle steel are respectively attached to the inner side walls of the corresponding angle steels of the cross double angle steel away from the single angle steel. The conversion joint of the single angle steel and the cross double angle steel adopts the first bolts passing through the corresponding first through holes of the first inner angle steel, the second inner angle steel, the third inner angle steel, the single angle steel and the cross double angle steel to fixedly connect the single angle steel and the cross double angle steel. The limbs of the single angle steel and the limbs of the cross double angle steel adjacent to the single angle steel are clamped and fixed between the first inner angle steel and the second inner angle steel or the first inner angle steel and the third inner angle steel, so that the inner side walls and the outer side walls of the limbs of the single angle steel and the limbs of the cross double angle steel adjacent to the single angle steel are both fixedly connected, the connection strength of the conversion joint of the single angle steel and the cross double angle steel is greatly improved, the connection of the single angle steel and the cross double angle steel is more reliable and stable, the first bolts are used for fixed connection, the in-place installation is simple and convenient, the single angle steel is located at the top of the cross double angle steel, no additional welding seat plate and stiffener plate are needed, the connection length is reduced by 25%, the conversion and installation quality and precision are improved, the welding amount is reduced, the weight of the single piece of the single angle steel and the cross double angle steel is reduced, the single piece is light in weight, transportation and installation are facilitated, and the safety risk of transportation and installation construction is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 is a top view schematic diagram of a single angle steel and a cross double combined angle steel conversion structure of a power transmission angle steel tower provided by the embodiment of the present application;

[0015] Figure 2 is a top view schematic diagram of a shell of a single angle steel and a cross double combined angle steel conversion structure of a power transmission angle steel tower with a fixing plate provided by the embodiment of the present application;

[0016] Figure 3 is a front view schematic diagram of a single angle steel and a cross double combined angle steel conversion structure of a power transmission angle steel tower provided by the embodiment of the present application;

[0017] Figure 4 is a top view schematic diagram of a single angle steel provided by the embodiment of the present application;

[0018] Figure 5 is a top view schematic diagram of a cross double angle steel provided by the embodiment of the present application;

[0019] Figure 6 is a top view schematic diagram of a single angle steel located at the top of a cross double angle steel provided by the embodiment of the present application;

[0020] Figure 7 is a front view schematic diagram of a first inner wrapping angle steel and a fixing plate connection provided by the embodiment of the present application.

[0021] Reference signs:

[0022] Cross double angle steel 1, single angle steel 2, first inner wrapping angle steel 3, second inner wrapping angle steel 4, third inner wrapping angle steel 5, first bolt 6, first backing plate 7, fixing plate 8, second backing plate 9, second bolt 10. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0024] The utility model is further illustrated below in combination with the drawings and examples.

[0025] As Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the figure, the embodiment provides a transmission angle steel tower single angle steel and cross double combined angle steel conversion structure, including single angle steel 2 and cross double angle steel 1, the single angle steel 2 is located at the top of the cross double angle steel 1, the inner side wall of the two limbs of the single angle steel 2 is coplanar with the outer side wall of the corresponding limb of the cross double angle steel 1 respectively, the first inner angle steel 3 is arranged between the two limbs of the single angle steel 2, the upper end outer side wall of the two limbs of the first inner angle steel 3 is attached to the inner side wall of the two limbs of the single angle steel 2 respectively, the lower end outer side wall of the two limbs of the first inner angle steel 3 is attached to the outer side wall of the corresponding limb of the cross double angle steel 1 respectively, the second inner angle steel 4 and the third inner angle steel 5 are arranged between the two limbs of the corresponding angle steel of the cross double angle steel 1 respectively, the upper end outer side wall of the limb close to the single angle steel 2 of the second inner angle steel 4 and the third inner angle steel 5 is attached to the outer side wall of the corresponding limb of the single angle steel 2 respectively, the lower end outer side wall of the limb away from the single angle steel 2 of the second inner angle steel 4 and the third inner angle steel 5 is attached to the inner side wall of the corresponding limb of the cross double angle steel 1 respectively, the first inner angle steel 3, the second inner angle steel 4, the third inner angle steel 5, the single angle steel 2 and the cross double angle steel 1 are all provided with corresponding first through holes, further including the first bolt 6 matched with the first through hole, the first bolt 6 passes through the corresponding first through hole and is tightened with a nut to fixedly connect the first inner angle steel 3, the second inner angle steel 4, the third inner angle steel 5, the single angle steel 2, the cross double angle steel 1. Wherein, the cross section shape of the single angle steel 2 is L-shaped, the cross double combined angle steel (i.e. cross double angle steel) is composed of two oppositely arranged single angle steels, the openings of the two single angle steels face outward, the cross section shape of the cross double combined angle steel is cross-shaped, the two single angle steels contact or have a spacing between the two single angle steels. The number of the first through holes drilled in the limbs of the first inner angle steel 3, the second inner angle steel 4, the third inner angle steel 5, the single angle steel 2 and the cross double angle steel 1 is one or two or three or four or more integer, the first through hole corresponds to the first bolt 6 one by one. The first through holes on the first inner angle steel 3, the second inner angle steel 4, the third inner angle steel 5, the single angle steel 2 and the cross double angle steel 1 are used for installation and fixation one by one respectively.

[0026] The transmission angle steel tower single angle steel and cross double angle steel conversion structure based on the above structure is used for fixed installation of the transmission angle steel tower single angle steel and double angle steel conversion joint. The outer side walls of the upper ends of the two limb arms of the first inner wrapping angle steel 3 are respectively attached to the inner side walls of the two limb arms of the single angle steel 2, and the outer side walls of the lower ends of the two limb arms of the first inner wrapping angle steel 3 are respectively attached to the outer side walls of the limb arms of the cross double angle steel 1 adjacent to the single angle steel 2; the outer side walls of the upper ends of the limb arms of the second inner wrapping angle steel 4 and the third inner wrapping angle steel 5 adjacent to the single angle steel 2 are respectively attached to the outer side walls of the corresponding two limb arms of the single angle steel 2; the outer side walls of the lower ends of the limb arms of the second inner wrapping angle steel 4 and the third inner wrapping angle steel 5 away from the single angle steel 2 are respectively attached to the inner side walls of the corresponding angle steels of the cross double angle steel 1 away from the single angle steel 2; the conversion joint of the single angle steel 2 and the cross double angle steel 1 adopts the first bolt 6 passing through the corresponding first through holes of the first inner wrapping angle steel 3, the second inner wrapping angle steel 4, the third inner wrapping angle steel 5, the single angle steel 2 and the cross double angle steel 1 to fixedly connect the single angle steel 2 and the cross double angle steel 1, and the limb arms of the single angle steel 2 and the limb arms of the cross double angle steel 1 adjacent to the single angle steel 2 are both fixedly arranged between the first inner wrapping angle steel 3 and the second inner wrapping angle steel 4 or the first inner wrapping angle steel 3 and the third inner wrapping angle steel 5, so that the inner side walls and the outer side walls of the limb arms of the single angle steel 2 and the limb arms of the cross double angle steel 1 adjacent to the single angle steel 2 are both fixedly connected in double sides, the connection strength of the single angle steel and the cross double angle steel conversion joint is greatly improved, the connection of the single angle steel 2 and the cross double angle steel 1 is more reliable and stable, the fixed connection by the first bolt 6 is simple and convenient in installation; the single angle steel 2 is located at the top of the cross double angle steel 1, without the need of welding a seat plate and a stiffener plate, the connection length is reduced by 25%, the conversion installation quality and the installation precision are improved, the welding amount is reduced, the weight of the single angle steel 2 and the cross double angle steel 1 is reduced, the single piece is light in weight, convenient in transportation and installation, and the safety risk of transportation and installation construction is reduced.

[0027] As an implementable manner, as shown in Figure 1 , Figure 3 , the upper ends of the limb arms of the second inner wrapping angle steel 4 and the third inner wrapping angle steel 5 close to the single angle steel 2 are provided with the first gusset plate 7 between the limb arms of the corresponding cross double angle steel 1, the first gusset plate 7 is provided with the corresponding first through hole, and the first bolt 6 passes through the corresponding first through hole to fixedly connect the second inner wrapping angle steel 4, the third inner wrapping angle steel 5, the first gusset plate 7 and the cross double angle steel 1.

[0028] The first gusset plate 7 fills the gaps between the limb arms of the cross double angle steel 1 and the second inner wrapping angle steel 4 and the gaps between the limb arms of the cross double angle steel 1 and the third inner wrapping angle steel 5, improves the integrity, and makes the connection of the single angle steel 2 and the cross double angle steel 1 more reliable and stable. The first through hole drilled in the first gusset plate 7 is one-to-one matched with the first through holes of the corresponding limb arms of the second inner wrapping angle steel 4, the third inner wrapping angle steel 5 and the cross double angle steel 1 for installation and fixation.

[0029] As an implementable manner, as shown in Figure 1 The first gusset plate 7 is a steel plate, and the thickness value of the first gusset plate 7 is the same as the difference between the thickness value of the limb of the single angle steel 2 and the thickness value of the limb of the cross double angle steel 1.

[0030] The thickness value of the first gusset plate 7 is the same as the difference between the thickness value of the limb of the single angle steel 2 and the thickness value of the limb of the cross double angle steel 1, which ensures that the first gusset plate 7 is closely attached to the second inner angle steel 4, the third inner angle steel 5 and the cross double angle steel 1, and makes the connection of the single angle steel 2 and the cross double angle steel 1 more stable and reliable.

[0031] As an implementable manner, as shown in Figure 2 , Figure 3 , Figure 7 The two angle steels of the cross double angle steel 1 are provided with two L-shaped fixing plates 8 away from the limbs of the single angle steel 2, the end of the short side of the fixing plate 8 is welded with the first inner angle steel 3, the long sides of the two fixing plates 8 are respectively located outside the upper ends of the limbs of the second inner angle steel 4 and the third inner angle steel 5 away from the single angle steel 2, the corresponding limbs of the fixing plate 8, the second inner angle steel 4 and the third inner angle steel 5 are provided with second through holes, and the second through holes are matched with second bolts 10, the second bolts 10 pass through the corresponding second through holes and are tightened with nuts to fixedly connect the fixing plate 8, the second inner angle steel 4 and the third inner angle steel 5.

[0032] The fixing plate 8 provides support for the second inner angle steel 4 and the third inner angle steel 5, fixedly connects the first inner angle steel 3, the second inner angle steel 4 and the third inner angle steel 5 into one, and further improves the integrity of the connection of the single angle steel 2 and the cross double angle steel 1, so that the connection is more stable and reliable. The end of the short side of the fixing plate 8 and the first inner angle steel 3 adopts a bevel angle weld, which needs to be fully penetrated to improve the strength and toughness of the weld, so that it can bear larger load; after welding, the corner welding agent needs to be removed to facilitate connection. Only the fixing plate 8 and the first inner angle steel 3 are welded, and the rest are connected by bolts, which reduces the welding work by more than 70%. The number of second through holes provided on the corresponding limbs of the fixing plate 8, the second inner angle steel 4 and the third inner angle steel 5 is one or two or three or four or more integers, and the second through holes correspond to the second bolts 10 one by one. The second through holes on the fixing plate 8, the second inner angle steel 4 and the third inner angle steel 5 are used for installation and fixation one by one.

[0033] As an implementable manner, as shown in Figure 2 , Figure 3 , Figure 7As shown, the two fixing plates 8 have gaps between the limbs of the second inner angle steel 4 and the third inner angle steel 5 away from the single angle steel 2, respectively, and the second gusset plates 9 are arranged between the fixing plates 8 and the limbs of the second inner angle steel 4 and between the fixing plates 8 and the limbs of the third inner angle steel 5, and the second gusset plates 9 are provided with corresponding second through holes, and the second bolts 10 pass through the corresponding second through holes and are screwed with nuts to fixedly connect the fixing plates 8, the second gusset plates 9, the second inner angle steel 4 and the third inner angle steel 5.

[0034] One of the fixing plates 8 has a gap between the limb of the second inner angle steel 4 away from the single angle steel 2, and the other fixing plate 8 has a gap between the limb of the third inner angle steel 5 away from the single angle steel 2, and the two fixing plates 8 are arranged perpendicularly, and the second gusset plates 9 fill the gaps between the second inner angle steel 4 and the fixing plates 8 and between the third inner angle steel 5 and the fixing plates 8, thereby improving the integrity and making the connection of the single angle steel 2 and the cross double angle steel 1 more stable and reliable.

[0035] As an implementable manner, as shown in the drawings, Figure 2 As shown, the gap width between the two fixing plates 8 and the second inner angle steel 4 and the third inner angle steel 5 is the same as the thickness of the limbs of the cross double angle steel 1, and the second gusset plate 9 is a steel plate, and the thickness of the second gusset plate 9 is the same as the thickness of the limbs of the cross double angle steel 1.

[0036] The gap width between one of the fixing plates 8 and the second inner angle steel 4 is the same as the thickness of the limbs of the cross double angle steel 1, and the gap width between the other fixing plate 8 and the third inner angle steel 5 is the same as the thickness of the limbs of the cross double angle steel 1, and the thickness of the second gusset plate 9 is the same as the thickness of the limbs of the cross double angle steel 1, thereby ensuring that the second gusset plate 9 is closely attached to the fixing plates 8, the second inner angle steel 4 and the third inner angle steel 5, and the two limbs of the two angle steels of the cross double angle steel 1 are fixedly connected on both sides, thereby improving the integrity of the connection of the single angle steel 2 and the cross double angle steel 1 and further making the connection of the single angle steel 2 and the cross double angle steel 1 more stable and reliable.

[0037] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application.

Claims

1. A transmission angle steel tower single angle steel and cross double combined angle steel conversion structure, comprising a single angle steel (2) and a cross double angle steel (1), the single angle steel (2) is located at the top of the cross double angle steel (1), characterized in that, The inner side walls of the two limbs of the single angle steel (2) are coplanar with the outer side walls of the corresponding limbs of the cross double angle steel (1), a first inner enclosed angle steel (3) is arranged between the two limbs of the single angle steel (2), the upper end outer side walls of the two limbs of the first inner enclosed angle steel (3) are respectively attached to the inner side walls of the two limbs of the single angle steel (2), the lower end outer side walls of the two limbs of the first inner enclosed angle steel (3) are respectively attached to the outer side walls of the corresponding limbs of the cross double angle steel (1), a second inner enclosed angle steel (4) and a third inner enclosed angle steel (5) are respectively arranged between the two limbs of the corresponding angle steel of the cross double angle steel (1), the upper end outer side walls of the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5) close to the limbs of the single angle steel (2) are respectively attached to the outer side walls of the corresponding limbs of the single angle steel (2), the lower end outer side walls of the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5) away from the limbs of the single angle steel (2) are respectively attached to the inner side walls of the corresponding limbs of the cross double angle steel (1), the first inner enclosed angle steel (3), the second inner enclosed angle steel (4), the third inner enclosed angle steel (5), the single angle steel (2) and the cross double angle steel (1) are all provided with corresponding first through holes, and first bolts (6) matched with the first through holes are arranged, the first bolts (6) pass through the corresponding first through holes to fixedly connect the first inner enclosed angle steel (3), the second inner enclosed angle steel (4), the third inner enclosed angle steel (5), the single angle steel (2) and the cross double angle steel (1).

2. The power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure according to claim 1, characterized in that, The upper ends of the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5) close to the limbs of the single angle steel (2) are provided with first spacers (7) between the limbs of the corresponding cross double angle steel (1), the first spacers (7) are provided with corresponding first through holes, and the first bolts (6) pass through the corresponding first through holes to fixedly connect the second inner enclosed angle steel (4), the third inner enclosed angle steel (5), the first spacers (7) and the cross double angle steel (1).

3. The power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure according to claim 2, characterized in that, The first spacers (7) are steel plates, and the thickness value of the first spacers (7) is the same as the difference between the limb thickness value of the single angle steel (2) and the limb thickness value of the cross double angle steel (1).

4. The power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure according to claim 1, characterized in that, Two L-shaped fixed plates (8) are arranged between the limbs of the two angle steels of the cross double angle steel (1) away from the limbs of the single angle steel (2), the ends of the short sides of the fixed plates (8) are welded to the first inner enclosed angle steel (3), the long sides of the two fixed plates (8) are respectively located at the upper end outer sides of the limbs of the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5) away from the limbs of the single angle steel (2), the corresponding limbs of the fixed plates (8), the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5) are provided with second through holes, and second bolts (10) matched with the second through holes are arranged, the second bolts (10) pass through the corresponding second through holes to fixedly connect the fixed plates (8), the second inner enclosed angle steel (4) and the third inner enclosed angle steel (5).

5. The power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure according to claim 4, characterized in that, Two said fixed plates (8) have gaps between the limbs of the second inner angle steel (4) and the third inner angle steel (5) away from the single angle steel (2), respectively, second spacers (9) are arranged between the fixed plates (8) and the limbs of the second inner angle steel (4) and between the fixed plates (8) and the limbs of the third inner angle steel (5), the second spacers (9) are provided with corresponding second through holes, and the second bolts (10) pass through the corresponding second through holes to fixedly connect the fixed plates (8), the second spacers (9), the second inner angle steel (4) and the third inner angle steel (5).

6. The power transmission angle steel tower single angle steel and cross double combined angle steel conversion structure according to claim 5, characterized in that, The second spacers (9) are steel plates, and the thickness of the second spacers (9) is the same as the thickness of the limbs of the cross double angle steel (1).

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