Direct-current landscape tower

Abstract

The utility model discloses a direct current landscape tower which comprises a dragonfly-shaped iron tower, a first lead / ground wire hanging point and a second lead / ground wire hanging point, the dragonfly-shaped iron tower comprises a dragonfly-head-shaped tower head, a dragonfly-body-shaped tower body, a first cross arm and a second cross arm, the first cross arm and the second cross arm are in dragonfly wing shapes, and the tower head is arranged on the tower body. The first cross arm and the second cross arm are respectively arranged on the tower body and are oppositely arranged at intervals in the height direction of the tower body, the first lead / ground wire hanging point is arranged at the free end of the first cross arm, the second lead / ground wire hanging point is arranged at the free end of the second cross arm, and the first lead / ground wire hanging point and the second lead / ground wire hanging point are both suitable for hanging lead / ground wires. The direct-current landscape tower has the advantages of being simple in structure, clear in force transmission, novel in appearance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission technical field, specifically, a kind of DC landscape tower. BACKGROUND

[0002] With the development of society, the construction range of ecological protection area, sensitive area, wetland, park, various scenic spots and the like is increasingly large, while the land of town, suburb, rural field is also increasingly nervous.Currently, the power load required by city development is increasing, and the construction of power transmission line of power grid is also increasing, many high-voltage lines often adjoin or pass through the above-mentioned protection area, scenic area and the like, and the local government and the relevant department of state have put forward higher requirements for line construction, in order to reduce the influence of engineering construction on environment, and make the building and structure to be coordinated and integrated with surrounding environment as far as possible, it is often required that the tower design should not only be practical and safe, but also pay attention to integration with surrounding environment and aesthetic design.

[0003] In the related art, the outer shape of the power transmission tower single loop is mainly divided into wine cup type, cat head type, upper character type and dry character type, mainly considering stress, transportation, installation and other factors, and less considering aesthetic factors, resulting in single modeling of the power transmission tower.Moreover, the cross arm of the traditional power transmission tower is mainly of equal section or regular geometric shape, and has large wind area, which is easily affected by large wind load in strong wind area, thereby affecting the structural stability and safety. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to solve at least one of the technical problems in the related art to some extent.

[0005] Therefore, the embodiment of the utility model provides a power transmission line landscape tower which is beautiful in modeling, can meet the coordination and integration of line and urban and rural environment, and can reduce the wind area.

[0006] The DC landscape tower according to the embodiment of the utility model comprises a dragonfly-shaped tower, the dragonfly-shaped tower comprises a tower head in the shape of a dragonfly head, a tower body in the shape of a dragonfly body, a first cross arm in the shape of a dragonfly wing and a second cross arm, the tower head is arranged on the tower body, the tower head is arranged on the tower body, and the first cross arm and the second cross arm are arranged on the tower body and spaced apart from each other in the height direction of the tower body; a first conductor / ground wire hanging point and a second conductor / ground wire hanging point, the first conductor / ground wire hanging point is arranged at the free end of the first cross arm, the second conductor / ground wire hanging point is arranged at the free end of the second cross arm, and the first conductor / ground wire hanging point and the second conductor / ground wire hanging point are suitable for suspending conductor.

[0007] The direct-current landscape tower of the embodiment of the present application is provided with a dragonfly-shaped iron tower, a first ground wire hanging point, a first conductor / ground wire hanging point and a second conductor / ground wire hanging point, the power transmission line landscape tower is arranged in a dragonfly shape, the aesthetic appearance of the power transmission line landscape tower is improved, and the power transmission line can pass through urban areas, farmlands and villages, various scenic areas, while meeting the coordination between the line and the natural environment and the humanistic environment of the surrounding farmland environment, the artistic beauty of the power transmission iron tower is increased, and the iron tower itself has good bearing capacity, high stability and high reliability.

[0008] In some embodiments, the cross-sectional area of the first cross arm gradually decreases in a direction away from the tower body, and / or the cross-sectional area of the second cross arm gradually decreases in a direction away from the tower body.

[0009] In some embodiments, the first cross arm includes a first sub-cross arm and a second sub-cross arm, the first sub-cross arm and the second sub-cross arm are both arranged on the tower body, and the first sub-cross arm and the second sub-cross arm are arranged in a vertical direction, a free end of the first sub-cross arm is provided with a first ground wire hanging point, and a free end of the second sub-cross arm is provided with the first conductor wire hanging point, in a projection plane perpendicular to the vertical direction, a projection of the first sub-cross arm is located in the second sub-cross arm, and / or the second cross arm includes a third sub-cross arm and a fourth sub-cross arm, the third sub-cross arm and the fourth sub-cross arm are arranged in the vertical direction, a free end of the third sub-cross arm is provided with a second ground wire hanging point, and a free end of the fourth sub-cross arm is provided with the second conductor wire hanging point, in the projection plane perpendicular to the vertical direction, a projection of the third sub-cross arm is located in the fourth sub-cross arm.

[0010] In some embodiments, the direct-current landscape tower further includes a first insulator string and a second insulator string, the first insulator string is arranged on the first conductor wire hanging point, the second insulator string is arranged on the second conductor wire hanging point, and the first insulator string and the second insulator string are both used for suspending conductor wires.

[0011] In some embodiments, the tower body includes a first section, a second section and a third section arranged in sequence in a vertical direction, the heights of the first section, the second section and the third section are all adjustable, the tower head is arranged on the first section, the first cross arm and the second cross arm are both arranged on the first section and located on both sides of the first section respectively, the cross-sectional area of the first section and the cross-sectional area of the third section are constant from top to bottom, and the cross-sectional area of the second section gradually increases from top to bottom, in a projection plane perpendicular to the vertical direction, a projection of the first section is located in the second section, and a projection of the second section is located in the third section.

[0012] In some embodiments, in a projection plane perpendicular to the vertical direction, a projection of the tower body is a regular octagon.

[0013] In some embodiments, the dragonfly-shaped iron tower is a truss structure composed of angle steels, steel pipes, channel steels and other different types of section steels.

[0014] In some embodiments, the outer surface of the dragonfly-shaped iron tower is coated with a zinc-plated corrosion-resistant material and / or a color composite corrosion-resistant material.

[0015] In some embodiments, the tower head comprises a first part, a second part and a third part, the first part is spherical and arranged on the tower body, the second part and the third part are arranged on the first part, the second part is arranged opposite to the first cross arm in the up-down direction, and the third part is arranged opposite to the second cross arm in the up-down direction.

[0016] In some embodiments, the direct-current landscape tower further comprises a plurality of tower feet, each of the plurality of tower feet is connected to the lower end of the tower body and arranged in the circumferential direction of the tower body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a direct-current landscape tower according to an embodiment of the present application.

[0018] Figure 2 is a top view of a tower body of a direct-current landscape tower according to an embodiment of the present application.

[0019] Direct-current landscape tower 100;

[0020] Dragonfly-shaped iron tower 1; tower head 11; first part 111; second part 112; third part 113; tower body 12; first section 121; second section 122; first tower body slope change point 1221; second tower body slope change point 1222; third section 123;

[0021] First cross arm 13; first sub-cross arm 131; second sub-cross arm 132; second cross arm 14; third sub-cross arm 141; fourth sub-cross arm 142; tower foot 15; transverse partition surface 16;

[0022] First wire hanging point 2; second wire hanging point 3; third wire hanging point 4; fourth wire hanging point 5; first ground wire hanging point 6; second ground wire hanging point 7. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0024] The direct-current landscape tower 100 according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0025] As Figures 1-2 shown, the direct-current landscape tower 100 according to the embodiment of the utility model includes a dragonfly-shaped iron tower 1, a first ground / line hanging point and a second ground / line hanging point.

[0026] The dragonfly-shaped iron tower 1 includes a tower head 11 in the shape of a dragonfly head, a tower body 12 in the shape of a dragonfly body, a first cross arm 13 in the shape of a dragonfly wing and a second cross arm 14 in the shape of a dragonfly wing, the tower head 11 is arranged on the tower body 12, the tower head 11 is arranged on the tower body 12, and the first cross arm 13 and the second cross arm 14 are arranged on the tower body 12 and are arranged opposite to each other in the height direction of the tower body 12. Specifically, as Figure 1 shown, the tower body 12 extends in the up-down direction and the tower head 11 is fixedly installed on the tower body 12, the first cross arm 13 is fixed on the left side of the tower body 12, the second cross arm 14 is arranged on the right side of the tower body 12, and the first cross arm 13 and the second cross arm 14 are arranged opposite to each other in the left-right direction, so that the iron tower 1 is arranged in the shape of a dragonfly.

[0027] The first ground / line hanging point is arranged at the free end of the first cross arm 13, and the second ground / line hanging point is arranged at the free end of the second cross arm 14, and the first ground / line hanging point and the second ground / line hanging point are suitable for suspending ground lines or conductive lines. Specifically, as Figure 1 shown, the first ground / line hanging point is arranged at the left end of the first cross arm 13, and the second ground / line hanging point is arranged at the right end of the second cross arm 14, and the ground lines are hung through the first ground / line hanging point and the second ground / line hanging point to ensure the communication demand and the lightning protection safety of the iron tower, or the conductive lines are hung through the first ground / line hanging point 2 and the second ground / line hanging point.

[0028] The power transmission line landscape tower according to the embodiment of the utility model sets the dragonfly-shaped iron tower 1, the first ground / line hanging point and the second ground / line hanging point, sets the power transmission line landscape tower in the shape of a dragonfly, has a simple and elegant overall structure, clear force transmission, smooth lines, and is beautiful, meets the coordination of the line and the urban and rural environment, increases the artistic beauty of the power transmission iron tower, improves the beauty of the power transmission line landscape tower, so that the power transmission line landscape tower can meet the coordination of the line and the surrounding natural environment and the humanistic environment, also increases the artistic beauty of the power transmission line landscape tower, and at the same time, the structure type ensures the bearing capacity, stability and reliability of the iron tower, and guarantees the usability of the power transmission line landscape tower.

[0029] In some embodiments, the cross-sectional area of the first cross arm 13 gradually decreases in the direction away from the tower body 12, and / or the cross-sectional area of the second cross arm 14 gradually decreases in the direction away from the tower body 12. Specifically, as Figure 1As shown, the cross-sectional area of the first cross arm 13 gradually decreases from right to left, and the cross-sectional area of the second cross arm 14 gradually decreases from left to right, thereby, the arrangement of the first cross arm 13 and the second cross arm 14 not only reduces the self-weight of the tower 1, but also reduces the area of the windward surface of the first cross arm 13 and the second cross arm 14, thereby reducing the influence of wind load, in addition, the appearance of the first cross arm 13 and the second cross arm 14 can be more like the shape of a dragonfly wing, improving the aesthetic appearance of the direct current landscape tower 100.

[0030] In some embodiments, the first cross arm 13 includes a first sub-cross arm 131 and a second sub-cross arm 132, the first sub-cross arm 131 and the second sub-cross arm 132 are both arranged on the tower body 12 and are arranged in a spaced-apart manner along the up-down direction, the free end of the first sub-cross arm 131 is provided with the first ground wire hanging point 6, and the free end of the second sub-cross arm 132 is provided with the first conductor wire hanging point 2, and in the projection plane perpendicular to the up-down direction, the projection of the first sub-cross arm 131 is located in the second sub-cross arm 132. Specifically, as shown in Figure 1 As shown, the first sub-cross arm 131 is a ground wire cross arm, and the second sub-cross arm 132 is a conductor wire cross arm, the first sub-cross arm 131 and the second sub-cross arm 132 are both arranged on the left side of the tower body 12, the first sub-cross arm 131 is arranged above the second sub-cross arm 132 and is arranged in a spaced-apart manner along the up-down direction, the left side of the first sub-cross arm 131 is provided with the first ground wire hanging point 6, and the left side of the second sub-cross arm 132 is provided with the first conductor wire hanging point 2, thereby, the ground wire and the conductor wire are hung on the first sub-cross arm 131 and the second sub-cross arm 132 through the first ground wire hanging point 6 and the first conductor wire hanging point 2 respectively, and the cross-sectional area of the first sub-cross arm 131 is smaller than that of the second sub-cross arm 132, not only making the conductor wire and the ground wire staggered in the up-down and left-right directions, avoiding mutual interference between the conductor wire and the ground wire, ensuring the stability and safety of power transmission, but also making the appearance of the entire tower more in line with the design concept of "dragonfly", enhancing the visual aesthetics and artistic effect.

[0031] In some embodiments, the second cross arm 14 includes a third sub-cross arm 141 and a fourth sub-cross arm 142, the third sub-cross arm 141 and the fourth sub-cross arm 142 are arranged in a spaced-apart manner along the up-down direction, the free end of the third sub-cross arm 141 is provided with the second ground wire hanging point 7, and the free end of the fourth sub-cross arm 142 is provided with the second conductor wire hanging point 3, and in the projection plane perpendicular to the up-down direction, the projection of the third sub-cross arm 141 is located in the fourth sub-cross arm 142. Specifically, as shown in Figure 1As shown, the third sub-cross arm 141 is a ground wire cross arm, and the fourth sub-cross arm 142 is a conductor wire cross arm. The third sub-cross arm 141 and the fourth sub-cross arm 142 are both arranged on the right side of the tower body 12. The third sub-cross arm 141 is arranged above the fourth sub-cross arm 142 and is spaced apart from the fourth sub-cross arm 142 in the up-down direction. The right side of the third sub-cross arm 141 is provided with a second ground wire hanging point 7, and the right side of the fourth sub-cross arm 142 is provided with a second conductor wire hanging point 3. In this way, the ground wire and the conductor wire are hung on the third sub-cross arm 141 and the fourth sub-cross arm 142 through the second ground wire hanging point 7 and the second conductor wire hanging point 3, respectively. The third sub-cross arm 141 has a smaller cross-sectional area than the fourth sub-cross arm 142. This not only causes the ground wire and the conductor wire to be staggered in the up-down and left-right directions, avoiding mutual interference between the ground wire and the conductor wire, but also ensures the stability and safety of power transmission. The arrangement of the first sub-cross arm 131 and the second sub-cross arm 132 makes the overall appearance of the tower more in line with the design concept of "dragonfly", enhancing the visual aesthetics and artistic effect.

[0032] In some embodiments, the direct current landscape tower 100 further comprises a first insulator string (not shown in the figure) and a second insulator string (not shown in the figure). The first insulator string is arranged on the first conductor wire hanging point 2, and the second insulator string is arranged on the second conductor wire hanging point 3. Both the first insulator string and the second insulator string are used to suspend the conductor wire. Specifically, when both the first insulator string and the second insulator string are I-type insulator strings, the first insulator string is arranged on the first conductor wire hanging point 2, and the second insulator string is arranged on the second conductor wire hanging point 3. When the first insulator string and the second insulator string are V / L-type insulator strings, a third conductor wire hanging point 4 can be arranged on the second sub-cross arm 132, and a fourth conductor wire hanging point 5 can be arranged on the fourth sub-cross arm 142. The first insulator string is arranged on the first conductor wire hanging point 2 and the third conductor wire hanging point 4, and the second insulator string is arranged on the second conductor wire hanging point 3 and the fourth conductor wire hanging point 5. In this way, the first insulator string and the second insulator string achieve support and insulation for the conductor wire and the ground wire, improving the safety of power transmission.

[0033] In some embodiments, the tower body 12 comprises a first section 121, a second section 122, and a third section 123 arranged in sequence in the up-down direction. The heights of the first section 121, the second section 122, and the third section 123 are all adjustable. The tower head 11 is arranged on the first section 121. The first cross arm 13 and the second cross arm 14 are both arranged on the first section 121 and located on both sides of the first section 121, respectively. The cross-sectional area of the first section 121 and the cross-sectional area of the third section 123 are constant from top to bottom. The cross-sectional area of the second section 122 gradually increases from top to bottom. In the projection plane perpendicular to the up-down direction, the projection of the first section 121 is located within the second section 122, and the projection of the second section 122 is located within the third section 123. Specifically, as shown in FIG. 1, the first section 121 is arranged on the left side of the tower body 12, and the second section 122 is arranged on the right side of the tower body 12. The third section 123 is arranged on the left side of the tower body 12. Figure 1As shown, the first section 121, the second section 122 and the third section 123 all extend in the up-down direction, and the heights of the first section 121, the second section 122 and the third section 123 can be set according to actual conditions to meet the needs of different landscape towers. The tower head 11 is arranged at the upper end of the first section 121, the upper and lower ends of the second section 122 are connected with the first section 121 and the third section 123 respectively, the first section 121 and the third section 123 are prisms with constant cross-sectional area in the up-down direction, and the second section 122 is a prism with increasing cross-sectional area from top to bottom. The first section 121 is a mounting section, and the tower head 11, the first cross arm 13 and the second cross arm 14 are arranged on the first section 121, so that the first section 121 can provide stable support for the tower head 11, the first cross arm 13 and the second cross arm 14, and ensure the installation and use safety of the tower head 11, the first cross arm 13 and the second cross arm 14. The third section 123 is a support section, which provides firm bottom support for the tower body 12 and ensures the stability of the entire tower 1. The second section 122 is a variable slope section, and the lower end surface of the second section 122 is larger than the upper end surface of the second section 122. The variable slope position of the second section 122 is mainly set to highlight the tail of the "dragonfly" in appearance, and the load at the bottom of the tower is larger in mechanical characteristics. By increasing the cross-sectional area, the structure system can be better optimized, and the position of the variable slope point can be adjusted up and down according to actual conditions.

[0034] In some embodiments, as Figure 2 As shown, in the projection plane perpendicular to the up-down direction, the projection of the tower body 12 is a regular octagon. Since the regular octagon is different from the traditional square or rectangular iron tower, it has high symmetry, which means that its mechanical properties in all directions are relatively balanced, which helps to improve the overall stability of the transmission tower. In addition, the structure of the regular octagon can better disperse and transfer the load, reduce stress concentration, and improve the carrying capacity of the transmission tower. Compared with other cross-sectional forms such as quadrilaterals, the regular octagonal transmission tower can reduce the amount of steel used while maintaining the same carrying capacity, thereby reducing the cost. In addition, the regular octagonal transmission tower has a unique and elegant shape, which can better integrate into the overall environment of the modern city and improve the image and quality of the city. Finally, the internal space of the regular octagonal transmission tower is relatively large, and various different types of tower components and other facilities can be installed, which can avoid the need to increase the width of the regular quadrilateral to meet the requirements of the tower components passing through the center.

[0035] In some embodiments, the dragonfly-shaped iron tower 1 is a truss structure composed of angle steels, steel pipes, channel steels and other types of section steels. Specifically, the iron tower 1 can adopt cross-section types such as angle steels, steel pipes, channel steels, and the material of the iron tower 1 can adopt strength levels such as Q235, Q355, Q420, Q460, etc. The levels used at different positions can be different, and the selection of steel specifications and materials can be made through calculation, and at the same time, new composite materials (such as glass steel, carbon fiber, etc.) can also be used to improve the strength and stiffness of the iron tower 1, reduce the self-weight of the iron tower 1, and ensure the structural stability of the tower pole, so that the iron tower 1 has good wind resistance and fatigue resistance.

[0036] In some embodiments, the outer surface of the dragonfly-shaped iron tower 1 is coated with a zinc-plated corrosion-resistant material, and / or the outer surface of the dragonfly-shaped iron tower 1 is coated with a color composite corrosion-resistant material. In this way, the corrosion resistance of the iron tower 1 can be improved by using a zinc-plated corrosion-resistant material, which improves the service life of the iron tower 1, and the color composite corrosion-resistant material not only further improves the corrosion resistance of the iron tower 1, but also allows the iron tower 1 to adopt a color that is harmonious with the surrounding environment, making the landscape tower more integrated and coordinated with the surrounding natural environment.

[0037] In some embodiments, the tower head 11 includes a first part 111, a second part 112 and a third part 113, the first part 111 is spherical and is arranged on the tower body 12, the second part 112 and the third part 113 are arranged on the first part 111, the second part 112 is arranged opposite to the first cross arm 13 in the up-down direction, and the third part 113 is arranged opposite to the second cross arm 14 in the up-down direction. Specifically, the first part 111 can be spherical and arranged at the upper end of the tower body 12, so that the first part 111 serves as the head of a dragonfly, the second part 112 is arranged above and to the left of the first part 111, and the third part 113 is arranged above and to the right of the first part 111, so that the second part 112 and the third part 113 serve as the eyes of a dragonfly. In this way, the entire structure of the tower head 11 is closer to the shape of a dragonfly's head by arranging the first part 111, the second part 112 and the third part 113, so that the overall appearance of the entire iron tower 1 is more in line with the design concept of "dragonfly", thereby enhancing the visual aesthetics and artistic effect.

[0038] In some embodiments, the direct-current landscape tower 100 further includes a plurality of tower feet 15, each of which is connected to the lower end of the tower body 12 and is arranged in the circumferential direction of the tower body 12. Specifically, as shown in Figures 1-2 each of the plurality of tower feet 15 is arranged at the lower end of the tower body 12 and is equally spaced in the circumferential direction of the tower body 12, and the plurality of tower feet 15 are arranged in the circumferential direction of the tower body 12 to form a multi-point support structure, thereby improving the overall stability of the iron tower 1.

[0039] In some embodiments, the plurality of cross partitions 16 are arranged on the tower body 12 in the up-down direction, so that the eight main materials of the tower are connected as a whole from top to bottom, thereby increasing the lateral stiffness of the structure as a whole.

[0040] The following will be described in detail according to the accompanying drawings Figures 1-2 Specifically, the direct-current landscape tower 100 according to the embodiments of the present application comprises a "head" (i.e., the tower head 11), two pairs of "wings" (i.e., the left wing is the first sub-cross arm 131 and the second sub-cross arm 132, and the right wing is the third sub-cross arm 141 and the fourth sub-cross arm 142), and a "body" (i.e., the iron tower 1).

[0041] The entire structure is left-right symmetrical, and the tower head 11 is only for decoration. Two pairs of "wings" (i.e., the left wing is the first sub-cross arm 131 and the second sub-cross arm 132, and the right wing is the third sub-cross arm 141 and the fourth sub-cross arm 142) are arranged below the head. The first sub-cross arm 131 and the third sub-cross arm 141 are ground cross arms, and the left and right ends of the first sub-cross arm 131 and the third sub-cross arm 141 are provided with ground or optical cable hanging points. The second sub-cross arm 132 and the fourth sub-cross arm 142 are conductor cross arms, and the left and right ends of the second sub-cross arm 132 and the fourth sub-cross arm 142 are provided with conductor (positive and negative) hanging points. The conductor hanging points can be I-shaped insulator string hanging points, or V-shaped or L-shaped insulator string hanging points. In actual use, the hanging points can be set according to specific needs. If V-shaped or L-shaped insulator string hanging points are used, another hanging point can be arranged inside the tower body 12 or the second sub-cross arm 132 and the fourth sub-cross arm 142.

[0042] The accompanying drawings will be described in combination with the specific embodiments of the present application Figure 1 The direct-current landscape tower 100 according to the embodiments of the present application will be further described as follows:

[0043] A novel direct-current landscape tower for a power transmission line comprises a tower head 11 (including a first part 111, a second part 112, and a third part 113), a tower body 12 (a first section 121, a second section 122, and a third section 123), and a tower leg. In the drawings:

[0044] 1. "Dragonfly-type" tower head 11 (landscape tower modeling decoration), which is not a force-bearing member.

[0045] 2. "Dragonfly-type" iron tower first pair of wings (first sub-cross arm 131), wherein the first sub-cross arm 131 is provided with a first ground hanging point 6 at the end.

[0046] 3. "Dragonfly-type" iron tower first pair of wings (third sub-cross arm 141), wherein the third sub-cross arm 141 is provided with a third ground hanging point.

[0047] 4-Second pair of wings of "dragonfly type" iron tower (second sub-cross arm 132), wherein the end of the second sub-cross arm 132 is provided with the first conductor hanging point 2 and the third conductor hanging point 4, when the iron tower adopts I type insulator string, only the first conductor hanging point 2 is used, when the iron tower adopts V, L type insulator string, the first conductor hanging point 2 and the third conductor hanging point 4 are used simultaneously.

[0048] 5-Second pair of wings of "dragonfly type" iron tower (fourth conductor cross arm), wherein the end of the fourth conductor cross arm is provided with the second conductor hanging point 3 and the fourth conductor hanging point 5, when the iron tower adopts I type insulator string, only the second conductor hanging point 3 is used, when the iron tower adopts V, L type insulator string, the second conductor hanging point 3 and the fourth conductor hanging point 5 are used simultaneously. The string type of the left and right sides of the general iron tower is consistent, that is, I string or V string or L string is used simultaneously on both sides.

[0049] 6-Body section of "dragonfly type" iron tower (tower body 12), the upper end of the second section 122 is the first tower body slope change point 1221, the lower end of the second section 122 is the second tower body slope change point 1222, and the slope change position of the second section 122 is mainly set to highlight the tail of "dragonfly" in appearance, and the load at the bottom of the iron tower is large in mechanical characteristics, so that the structure system can be better optimized by increasing the cross section, and the position of the slope change point can be adjusted up and down according to actual conditions.

[0050] 7-Tower leg of "dragonfly type" iron tower, used for connecting with the foundation of the iron tower.

[0051] 8-Cross partition surface 16 of "dragonfly type" iron tower, which is provided at the joint surface of the ground wire cross arm, the conductor cross arm and the tower body 12, and is provided at a certain distance in the middle of the tower body 126 and the tower leg 7, and the main purpose is to connect the eight main materials constituting the iron tower from top to bottom into a whole, so as to increase the lateral stiffness of the structure as a whole.

[0052] The end of the first sub-cross arm 131 and the end of the third sub-cross arm 141 are provided with the first ground wire hanging point 6 and the second ground wire hanging point 7, and the end of the first sub-cross arm 131 and the end of the third sub-cross arm 141 are arranged symmetrically.

[0053] The end of the second sub-cross arm 132 and the end of the fourth sub-cross arm 142 are respectively provided with the first conductor hanging point 2 and the second conductor hanging point, and are arranged symmetrically.

[0054] The cross section type (i.e. the plan view of the tower body 12 and the tower leg) of the tower body 12 and the tower leg is a regular octagon.

[0055] The "dragonfly type" iron tower is composed of any one of angle steel, steel pipe or channel steel.

[0056] The cross arm, the tower head 11 and the tower body 12 are connected by bolts, inserts or flanges.

[0057] The above 7 groups of components collectively constitute a new type of DC transmission line landscape tower, the dragonfly type iron tower transmits force clearly, the lines are beautiful, while meeting the coordination of the line and the natural environment, the artistic beauty of the transmission tower is increased, and the bearing capacity is good, and the stability and reliability are strong.

[0058] The new type of landscape tower can be applied to transmission line engineering of various voltage levels in the DC line, when the line path passes through rural farmland, urban landscape, various scenic spots and the like, the transmission tower can be coordinated with the surrounding natural environment and human environment, and a beautiful scenery is formed.

[0059] The new type of landscape tower can be applied to iron tower construction of various voltage levels in the DC transmission line engineering, and is especially suitable for positions where the transmission line passes through urban areas, suburban areas, fields and villages, various protected areas and scenic spots. In order to realize the coordination of the iron tower and the surrounding urban and rural, human and natural environment, the patent provides a new type of DC transmission line landscape tower, which is similar to a "dragonfly" in appearance. The overall structure is simple and atmospheric, the force transmission is clear, the lines are smooth, beautiful, and the artistic beauty of the transmission tower is increased while meeting the coordination of the line and the urban and rural environment. The tower body 12 adopts a regular octagonal cross section, which on the one hand maximizes the "dragonfly" feature, and on the other hand enhances the stress system of the structure, and coordinates and beautifies the surrounding environment, and also realizes the structural characteristics of good bearing capacity, stability and reliability.

[0060] In summary, the DC landscape tower 100 of the embodiment of the utility model has the following advantages:

[0061] 1) The "dragonfly type" iron tower body section (tower body 12), the second section 122 is provided with a first tower body slope change point 1221 and a second tower body slope change point 1222. The slope change position of the second section 122 is mainly set to highlight the tail of the "dragonfly" in appearance. The load at the bottom of the iron tower is large in mechanical characteristics. By increasing the cross section (the size of the regular octagon in the top view) of the overall tower body 12, the optimization of the structural system can be better realized, and then the material quantity of the iron tower components can be reduced. The position of the slope change point can be adjusted up and down according to the actual situation.

[0062] 2) All the rod members of the entire iron tower can adopt angle steel, steel pipe or other section type steel or combined type steel (lattice type combined section). The material of the entire iron tower can adopt Q235, Q355, Q420, Q460 and the like in different strength levels. The levels used in different positions can be different, and the selection of the steel specifications and materials can be realized through calculation; meanwhile, new composite materials such as glass steel and carbon fiber can also be used.

[0063] 3) The whole tower head 11, tower body 12 and tower leg can be connected by bolt connection, welding connection, riveting, plate insertion connection, flange connection and intersecting welding according to the characteristics and needs of different node positions.

[0064] 4) The tower and the foundation can be connected by pre-buried bolts and pre-buried inserted angle steels. The connection mode of the upper structure and the foundation can be flexibly selected according to the actual situation.

[0065] 5) The outer surface of the whole landscape tower is coated with galvanized anticorrosive paint or colored composite anticorrosive paint. The colored composite anticorrosive paint can adopt a color that is harmonious with the surrounding environment, so that the landscape tower is more integrated and coordinated with the surrounding natural environment.

[0066] 6) The cross-sectional shape of the tower body 12 and the tower leg (the plan view of the tower body 12 and the tower leg) is a regular octagon, which is different from the traditional square or rectangular iron tower. The regular octagon has high symmetry, which means that its mechanical properties in all directions are relatively balanced, which helps to improve the overall stability of the transmission tower. The structure of the regular octagon can better disperse and transfer loads and reduce stress concentration, thereby improving the carrying capacity of the transmission tower. Compared with other cross-sectional shapes such as quadrilaterals, the regular octagonal transmission tower can reduce the amount of steel used while maintaining the same carrying capacity, thereby reducing the cost. The regular octagonal transmission tower has a unique and elegant appearance, which can better integrate into the overall environment of a modern city and improve the image and quality of the city. The internal space of the regular octagonal transmission tower is relatively large, and various different types of tower components can be installed, which can avoid the need to increase the width of the regular quadrilateral tower to accommodate the central passage of the tower components during the design of the conventional regular quadrilateral tower.

[0067] 7) The horizontal diaphragm 16 of the "dragonfly type" iron tower is set at the intersection of the ground wire cross arm, the conductor cross arm and the tower body 12, or is set at a certain distance in the middle of the tower body 126 and the tower leg 7. The main purpose is to connect the eight main materials of the iron tower from top to bottom into a whole, thereby increasing the lateral stiffness of the structure as a whole and improving the carrying capacity of the whole structure system.

[0068] 8) The dragonfly type iron tower has clear material force transmission, beautiful lines, a symmetrical structure, balanced stress, and more reasonable stress. The overall structure is simple and atmospheric, the force transmission is clear, the lines are smooth and beautiful, the line and the urban and rural environment are coordinated, the artistic beauty of the power transmission tower is increased, the power transmission tower is more easily coordinated with the surrounding environment, the environment is beautified, the bearing capacity is good, and the stability and reliability are strong. In the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model.

[0069] In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0070] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0071] In the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0072] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A DC landscape tower, characterized in that, include: A dragonfly-shaped iron tower includes a tower head shaped like a dragonfly's head, a tower body shaped like a dragonfly's body, and a first crossarm and a second crossarm shaped like dragonfly's wings. The tower head is disposed on the tower body, and the first crossarm and the second crossarm are respectively disposed on the tower body with the tower body being spaced apart from each other in the height direction. A first conductor / ground wire suspension point and a second conductor / ground wire suspension point are provided. The first conductor / ground wire suspension point is disposed at the free end of the first crossarm, and the second conductor / ground wire suspension point is disposed at the free end of the second crossarm. Both the first conductor / ground wire suspension point and the second conductor / ground wire suspension point are suitable for suspending conductors. The cross-sectional area of ​​the first crossarm gradually decreases in the direction away from the tower body, and / or the cross-sectional area of ​​the second crossarm gradually decreases in the direction away from the tower body.

2. The DC landscape tower according to claim 1, characterized in that, The first crossarm includes a first sub-crossarm and a second sub-crossarm. Both the first and second sub-crossarms are installed on the tower body and are spaced apart along the vertical direction. The free end of the first sub-crossarm is provided with a first ground wire suspension point, and the free end of the second sub-crossarm is provided with a first conductor suspension point. In a projection plane orthogonal to the vertical direction, the projection of the first sub-crossarm is located within the second sub-crossarm. And / or, the second crossarm includes a third sub-crossarm and a fourth sub-crossarm, the third sub-crossarm and the fourth sub-crossarm being spaced apart in the vertical direction, the free end of the third sub-crossarm being provided with a second ground wire suspension point, the free end of the fourth sub-crossarm being provided with a second conductor suspension point, and in a projection plane orthogonal to the vertical direction, the projection of the third sub-crossarm is located within the fourth sub-crossarm.

3. The DC landscape tower according to claim 2, characterized in that, It also includes a first insulator string and a second insulator string. The first insulator string is installed at the first conductor suspension point, and the second insulator string is installed at the second conductor suspension point. Both the first insulator string and the second insulator string are used to suspend the conductor.

4. The DC landscape tower according to claim 1, characterized in that, The tower body includes a first section, a second section, and a third section arranged sequentially in the vertical direction. The height of the first section, the second section, and the third section are all adjustable. The tower head is located on the first section. The first crossarm and the second crossarm are both located on the first section and are respectively located on both sides of the first section. The cross-sectional area of ​​the first section and the cross-sectional area of ​​the third section are constant from top to bottom, while the cross-sectional area of ​​the second section gradually increases from top to bottom. In a projection plane orthogonal to the vertical direction, the projection of the first section is located within the second section, and the projection of the second section is located within the third section.

5. The DC landscape tower according to claim 1, characterized in that, In a projection plane orthogonal to the vertical direction, the projection of the tower body is a regular octagon.

6. The DC landscape tower according to claim 1, characterized in that, The dragonfly-shaped iron tower is a truss structure composed of different types of steel, including angle steel, steel pipes, and channel steel.

7. The DC landscape tower according to claim 1, characterized in that, The outer surface of the dragonfly-shaped iron tower is made of galvanized anti-corrosion material, and / or the outer surface of the dragonfly-shaped iron tower is coated with colored composite anti-corrosion material.

8. The DC landscape tower according to claim 1, characterized in that, The tower head includes a first part, a second part, and a third part. The first part is spherical and is disposed on the tower body. The second part and the third part are both disposed on the first part. The second part and the first crossarm are disposed opposite each other in the vertical direction. The third part and the second crossarm are disposed opposite each other in the vertical direction.

9. The DC landscape tower according to claim 1, characterized in that, It also includes multiple tower legs, each of which is connected to the lower end of the tower body and is circumferentially spaced from the tower body.

Images