Overhead transmission line steel pipe pole structure with top sealing plate with line hanging function

Abstract

The utility model discloses an overhead transmission line steel pipe pole structure with a top sealing plate with a line hanging function, which comprises a pole body, a plurality of cross arm structures are symmetrically arranged on the pole body, a ladder stand is arranged on the pole body, and an anti-climbing device is arranged at the bottom of the ladder stand. Compared with the prior art, the utility model has the advantages that the structure is simple, and the use is convenient; wire hanging is integrated, wire hanging holes are directly formed in the top sealing plate, the welding procedure is omitted, cost is reduced, and reliability is improved; the anti-load capacity is high, the variable cross-section rod body and the flange base are designed, and through experimental verification, 34.329 kN transverse wind load and 25.186 kN longitudinal wire tension can be borne; the cross arm and the pole body are in modular connection, and the crawling ladder is inserted and mounted, so that the field operation time is shortened; the safety is high, and the service life is prolonged due to dual protection of climbing thorn prevention and a hot-dip galvanizing process.

Description

Technical Field

[0001] This utility model relates to the technical field of power transmission line support structures, specifically to an overhead power transmission line steel pipe pole structure with a capping plate for hanging wires, which is suitable for supporting high-voltage power transmission lines and fixing conductors. Background Technology

[0002] Traditional overhead power transmission line steel pipe poles have the following problems:

[0003] The traditional pole structure is complex, requiring additional welding of the hanging plate, which is cumbersome and prone to insufficient strength due to welding quality issues, increasing maintenance costs. Stability is insufficient; the poles are mostly designed with a uniform cross-section, limiting their wind and load resistance, making them susceptible to deformation or toppling in extreme weather. Anti-climbing measures are weak; the bottom of the ladder lacks effective protective devices, posing safety hazards. Installation efficiency is low; the connection between the crossarm and the pole requires multiple on-site adjustments, resulting in a long construction period. Furthermore, traditional structures are prone to excessive deflection under maximum wind loads (such as wind angles of 90° and 91°), leading to conductor misalignment or even breakage.

[0004] Therefore, there is an urgent need for a new type of steel pipe pole that integrates hanging wire function, has a stable structure, and is easy to construct. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an overhead power transmission steel pipe pole structure with a capping plate featuring a hanging wire function. By optimizing the pole design, integrating the hanging wire function, and enhancing anti-climbing measures, it overcomes the shortcomings of traditional technologies.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an overhead power transmission steel pipe pole structure with a capping plate for hanging wires, including a pole body, several crossarm structures symmetrically arranged on the pole body, a ladder on the pole body, and an anti-climbing device at the bottom of the ladder;

[0007] The rod body includes a top section, a middle section, and a bottom section connected sequentially from top to bottom. The top section, middle section, and bottom section are circular tubes with varying cross-sections from top to bottom. The bottom of the top section is fitted onto the top of the middle section, and the bottom of the middle section is fitted onto the top of the bottom section. The bottom of the top section, the top and bottom of the middle section, and the top of the bottom section are all provided with tightening plates. The bottom of the bottom section is provided with a base.

[0008] The top of the top pole segment is provided with a capping plate, and a U-shaped plate is provided below the capping plate;

[0009] The top plate is provided with a number of top plate hanging holes, which are symmetrically arranged on the top plate and are centrally symmetrically distributed with respect to the center of the top rod segment. The number of hanging holes on one side of the top plate is 5, and the total number is 10.

[0010] The ladder includes a ladder vertical tube, and several ladder horizontal bars are provided on both sides of the ladder vertical tube. Several ladder seats are provided longitudinally on the sides of the top bar segment, middle bar segment, and bottom bar segment. The ladder vertical tube is inserted into the ladder seats.

[0011] The base includes a first flange plate and a second flange plate in the shape of a regular dodecagon. The first flange plate is larger than the bottom of the bottom rod segment. A plurality of L-shaped anchor bolts are provided between the first flange plate and the second flange plate. The L-shaped anchor bolts are located on the outside of the bottom rod segment. The first flange plate and the second flange plate are fixed to the ground by the plurality of L-shaped anchor bolts. A plurality of base reinforcing plates are provided on the side of the first flange plate and the bottom rod segment.

[0012] As a preferred embodiment, the bottom pole section is provided with a grounding component located above the base; the bottom pole section is also provided with an anti-climbing plate for connecting an anti-climbing device.

[0013] As a preferred embodiment, the anti-climbing device includes an arc-shaped steel plate clamped to the outside of the pole body. The arc-shaped steel plate is fixed to the anti-climbing plate by bolts. A plurality of anti-climbing spikes are evenly distributed on the outside of the arc-shaped steel plate, and the anti-climbing spikes are inclined downward.

[0014] As a preferred embodiment, the anti-climb spike is made of round steel, the end of the anti-climb spike is conical, and the anti-climb spike is inclined downward at 15°.

[0015] As a preferred embodiment, the crossarm structure includes a crossarm main rod, a crossarm connecting seat at the end of the crossarm main rod, a crossarm support on the rod body, and the crossarm connecting seat and the crossarm support are connected by anchor bolts.

[0016] The main crossarm is a variable cross-section octagonal tube. The main crossarm is welded to the crossarm connecting seat and reinforced by several crossarm reinforcing plates. Several handrails are provided at the top of the main crossarm. A crossarm top plate is provided at the end of the main crossarm away from the crossarm connecting seat. A first crossarm hanging plate is horizontally provided on the inner side of the crossarm top plate. A second crossarm hanging plate is vertically provided at the bottom of the first crossarm hanging plate. Hanging holes are provided on both the first and second crossarm hanging plates.

[0017] The diameter of the main crossarm decreases sequentially from the crossarm connecting seat to the crossarm top plate.

[0018] As a preferred embodiment, the number of L-shaped anchor bolts is 24, and the type is M42.

[0019] As a preferred embodiment, the rod body is manufactured using a hot-dip galvanizing process.

[0020] Compared with existing technologies, the advantages of this utility model are: simple structure and easy to use; integrated wire hanging, with wire hanging holes directly opened in the top plate, eliminating welding processes, reducing costs and improving reliability; strong load-bearing capacity, with a variable cross-section pole and flange base design, which has been experimentally verified to withstand 34.329kN of lateral wind load and 25.186kN of longitudinal conductor tension; convenient construction, with modular connection between the crossarm and pole, and plug-in installation of the ladder, reducing on-site operation time; high safety, with double protection from anti-climb spikes and hot-dip galvanizing process, extending service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a structural schematic diagram of the top rod segment of this utility model.

[0023] Figure 3 This is a top view of the top section of the present invention.

[0024] Figure 4 This is a structural schematic diagram of the middle section of this utility model.

[0025] Figure 5 This is a schematic diagram of the bottom rod segment of this utility model.

[0026] Figure 6 This is a utility model Figure 5 A magnified view of part A in the image.

[0027] Figure 7 This is a side view of the crossbeam structure of this utility model.

[0028] Figure 8 This is a top view of the crossbeam structure of this utility model.

[0029] Figure 9 This is a partial enlarged view of the ladder of this utility model.

[0030] Figure 10 This is a top view of the first flange plate of this utility model.

[0031] Figure 11 This is a structural schematic diagram of the flange plate and L-shaped anchor bolt of this utility model.

[0032] Figure 12 This is a top view of the anti-climbing device of this utility model.

[0033] Figure 13 This is a schematic diagram of the structure of the arc-shaped steel plate and anti-climb spikes in the anti-climb device of this utility model.

[0034] As shown in the figure: 1. Pole body, 2. Crossbeam structure, 3. Ladder, 4. Anti-climb device, 5. Tightening plate, 6. Base, 7. Crossbeam support, 101. Top pole section, 102. Middle pole section, 103. Bottom pole section, 1011. Top plate, 1012. U-shaped plate, 1013. Top plate hanging hole, 301. Ladder vertical pipe, 302. Ladder horizontal bar, 303. Ladder base, 60 1. First flange plate; 602. Second flange plate; 603. L-shaped anchor bolt; 604. Base reinforcing plate; 1031. Anti-climb plate; 401. Arc-shaped steel plate; 402. Anti-climb spike; 201. Crossarm main rod; 202. Crossarm connecting seat; 203. Crossarm reinforcing plate; 204. Handrail; 205. Crossarm top plate; 206. First crossarm hanging plate; 207. Second crossarm hanging plate. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "back," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Referring to the attached drawings, an overhead power transmission steel pipe pole structure with a capping plate 1011 for hanging wire function includes a pole body 1, several crossarm structures 2 symmetrically arranged on the pole body 1, a ladder 3 on the pole body 1, and an anti-climbing device 4 at the bottom of the ladder 3.

[0039] The rod body 1 includes a top rod segment 101, a middle rod segment 102, and a bottom rod segment 103 connected sequentially from top to bottom. The top rod segment 101, the middle rod segment 102, and the bottom rod segment 103 are circular tubes with varying cross-sections from top to bottom. The bottom of the top rod segment 101 is fitted onto the top of the middle rod segment 102, and the top of the middle rod segment 102 is fitted onto the top of the bottom rod segment 103. The bottom of the top rod segment 101, the top and bottom of the middle rod segment 102, and the top of the bottom rod segment 103 are all provided with tightening plates 5, and the bottom of the bottom rod segment 103 is provided with a base 6.

[0040] The top pole segment 101 is provided with a capping plate 1011 at the top, and a U-shaped plate 1012 is provided below the capping plate 1011.

[0041] The top plate 1011 is provided with a number of top plate hanging holes 1013. The top plate hanging holes 1013 are symmetrically arranged on the top plate 1011, and are centrally symmetrically distributed with respect to the center of the top rod segment 101. There are 5 hanging holes 1013 on each side of the top plate, and a total of 10.

[0042] The ladder 3 includes a ladder vertical tube 301, and several ladder horizontal bars 302 are provided on both sides of the ladder vertical tube 301. Several ladder seats 303 are provided longitudinally on the sides of the top bar segment 101, the middle bar segment 102, and the bottom bar segment 103. The ladder vertical tube 301 is inserted into the ladder seat 303.

[0043] The base 6 includes a first flange plate 601 and a second flange plate 602 in the shape of a regular dodecagon. The first flange plate 601 is larger than the bottom of the bottom rod segment 103. A number of L-shaped anchor bolts 603 are provided between the first flange plate 601 and the second flange plate 602. The L-shaped anchor bolts 603 are located on the outside of the bottom rod segment 103. The first flange plate 601 and the second flange plate 602 are fixed to the ground by the number of L-shaped anchor bolts 603. A number of base reinforcing plates 604 are provided on the sides of the first flange plate 601 and the bottom rod segment 103.

[0044] The bottom pole section 103 is equipped with a grounding device at its bottom, which is located above the base 6; the bottom pole section 103 is also equipped with an anti-climbing plate 1031, which is used to connect the anti-climbing device 4.

[0045] The anti-climb device 4 includes an arc-shaped steel plate 401 that is clamped to the outside of the pole body 1. The arc-shaped steel plate 401 is fixed to the anti-climb plate 1031 by bolts. A number of anti-climb spikes 402 are evenly provided on the outside of the arc-shaped steel plate 401. The anti-climb spikes 402 are inclined downward.

[0046] The anti-climb spike 402 is made of round steel, with a pointed cone-shaped end and tilted downwards at 15°.

[0047] The crossarm structure 2 includes a crossarm main rod 201, a crossarm connecting seat 202 is provided at the end of the crossarm main rod 201, a crossarm support 7 is provided on the rod body 1, and the crossarm connecting seat 202 and the crossarm support 7 are connected by anchor bolts.

[0048] The main crossarm 201 is an octagonal tube with a variable cross section. The main crossarm 201 is welded to the crossarm connecting seat 202 and reinforced by several crossarm reinforcing plates 203. Several handrails 204 are provided at the top of the main crossarm 201. A crossarm top plate 205 is provided at the end of the main crossarm 201 away from the crossarm connecting seat 202. A first crossarm hanging plate 206 is horizontally provided on the inner side of the crossarm top plate 205. A second crossarm hanging plate 207 is vertically provided at the bottom of the first crossarm hanging plate 206. Both the first crossarm hanging plate 206 and the second crossarm hanging plate 207 are provided with hanging holes.

[0049] The diameter of the main crossarm 201 decreases sequentially from the crossarm connecting seat 202 to the crossarm top plate 205.

[0050] There are 24 L-shaped anchor bolts of type 602, model M42.

[0051] The rod body 1 is made using a hot-dip galvanizing process.

[0052] In a specific implementation, the structural features and connection method of this utility model are as follows:

[0053] The pole is designed in segments: the bottom of the top pole segment fits into the top of the middle pole segment, and the bottom of the middle pole segment fits into the top of the bottom pole segment. Each fitting is secured with a tightening plate. The bottom pole segment is equipped with a grounding element, and the flange plate is fixed to the ground using L-shaped anchor bolts, which are evenly distributed on the outside of the pole.

[0054] Top plate and hanging holes: A U-shaped plate is welded under the top plate to enhance the top's compressive strength; the hanging holes are directly stamped and formed, with the hole diameter matching the wire fittings, and symmetrically distributed to reduce eccentric load.

[0055] Crossarm structure: The diameter of the main crossarm gradually decreases from the connecting seat to the top plate to reduce its weight; the hanging plate is welded to the main arm and reinforced by a reinforcing plate; the hanging holes are distributed horizontally and vertically to accommodate different conductor arrangements.

[0056] Anti-climb device: an arc-shaped steel plate is clamped to the pole and fixed to the anti-climb plate with bolts; the anti-climb spikes are made of Φ10mm round steel, spaced 200mm apart, with an inclination angle of 15°, which effectively prevents climbing.

[0057] Ladder: The ladder vertical tube is inserted into the ladder seat on the side of the pole, the longitudinal spacing of the horizontal bars is 400mm, and the bottom anti-climb device is 2.5m from the ground.

[0058] Operating method

[0059] Installation process: The pole body is hoisted in sections, and the tightening plate locks the connection parts; the flange plate is fixed to the concrete foundation with L-shaped anchor bolts; the crossarm is connected to the crossarm support with anchor bolts, and the wire is directly installed in the hanging hole; the ladder and anti-climb device are fixed with bolts on site.

[0060] Load testing verification:

[0061] Under wind angles of 90° (34.329kN lateral load) and extreme conditions (25.186kN longitudinal load), the maximum deflection of the pole is only 290mm, far below the standard limit; the combination of flange plate and L-shaped anchor bolt provides a load-bearing capacity of 350 tons, ensuring stability under extreme loads.

[0062] Working principle

[0063] Load distribution: The variable cross-section poles progressively transfer wind load and conductor tension to the bottom, while flange plates and anchor bolts distribute ground stress. Integrated wire hanging: The wire hanging holes in the capping plate directly support the conductors, reducing weak points in welding; symmetrical distribution of the hanging holes avoids torque concentration. Anti-climb design: Anti-climb spikes and curved steel plates form a physical barrier, combined with the ladder seat plug-in structure, enhancing safety.

[0064] Example

[0065] Pole height: Total height 25.9m, top section diameter Φ600mm, bottom section diameter Φ1200mm;

[0066] Wiring configuration: Ground wires are installed in the wiring holes on the top plate, and three-phase conductors are installed in the wiring plates on the crossarm;

[0067] Test results: Under 7 operating conditions (including wind angles of 90° and 91°), the deflection under 100% load met the standard, with no permanent deformation, and complied with IEC 60652:2021 and WAPDAP-166:83 standards.

[0068] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An overhead electric transmission line steel pipe pole structure with a function of hanging a wire on a top cover, characterized in that: Includes a pole, on which several crossbeam structures are symmetrically arranged, and a ladder is provided on the pole, with an anti-climbing device at the bottom of the ladder; The rod body includes a top section, a middle section, and a bottom section connected sequentially from top to bottom. The top section, middle section, and bottom section are circular tubes with varying cross-sections from top to bottom. The bottom of the top section is fitted onto the top of the middle section, and the bottom of the middle section is fitted onto the top of the bottom section. The bottom of the top section, the top and bottom of the middle section, and the top of the bottom section are all provided with tightening plates. The bottom of the bottom section is provided with a base. The top of the top pole segment is provided with a capping plate, and a U-shaped plate is provided below the capping plate; The top plate is provided with a number of top plate hanging holes, which are symmetrically arranged on the top plate and are centrally symmetrically distributed with respect to the center of the top rod segment. The number of hanging holes on one side of the top plate is 5, and the total number is 10. The ladder includes a ladder vertical tube, and several ladder horizontal bars are provided on both sides of the ladder vertical tube. Several ladder seats are provided longitudinally on the sides of the top bar segment, middle bar segment, and bottom bar segment. The ladder vertical tube is inserted into the ladder seats. The base includes a first flange plate and a second flange plate in the shape of a regular dodecagon. The first flange plate is larger than the bottom of the bottom rod segment. A plurality of L-shaped anchor bolts are provided between the first flange plate and the second flange plate. The L-shaped anchor bolts are located on the outside of the bottom rod segment. The first flange plate and the second flange plate are fixed to the ground by the plurality of L-shaped anchor bolts. A plurality of base reinforcing plates are provided on the side of the first flange plate and the bottom rod segment.

2. The overhead electric transmission line steel pole structure with a terminal roof and a wire hanging function according to claim 1, characterized in that: The bottom pole section is equipped with a grounding device located above the base; the bottom pole section is also equipped with an anti-climbing plate for connecting an anti-climbing device.

3. The overhead electric transmission line steel pole structure with a terminal roof and a wire hanging function according to claim 2, characterized in that: The anti-climb device includes an arc-shaped steel plate that is clamped to the outside of the pole. The arc-shaped steel plate is fixed to the anti-climbing plate by bolts. A number of anti-climb spikes are evenly distributed on the outside of the arc-shaped steel plate, and the anti-climb spikes are inclined downward.

4. The overhead electric transmission line steel pole structure with a terminal roof and a wire hanging function according to claim 3, characterized in that: The anti-climb spike is made of round steel, the end of the anti-climb spike is pointed and conical, and the anti-climb spike is inclined downward at 15°.

5. The overhead electric transmission line steel pole structure with a terminal roof and a wire hanging function according to claim 1, characterized in that: The crossarm structure includes a crossarm main rod, a crossarm connecting seat at the end of the crossarm main rod, and a crossarm support on the rod body. The crossarm connecting seat and the crossarm support are connected by anchor bolts. The main crossarm is a variable cross-section octagonal tube. The main crossarm is welded to the crossarm connecting seat and reinforced by several crossarm reinforcing plates. Several handrails are provided at the top of the main crossarm. A crossarm top plate is provided at the end of the main crossarm away from the crossarm connecting seat. A first crossarm hanging plate is horizontally provided on the inner side of the crossarm top plate. A second crossarm hanging plate is vertically provided at the bottom of the first crossarm hanging plate. Hanging holes are provided on both the first and second crossarm hanging plates. The diameter of the main crossarm decreases sequentially from the crossarm connecting seat to the crossarm top plate.

6. The overhead electric transmission line steel pole structure with a top mounted roof and a messenger line function according to claim 1, characterized in that: The number of L-shaped anchors is 24, and the model is M42.

7. The overhead electric transmission line steel pole structure with a roof and a function of hanging a wire according to claim 1, characterized in that: The rod body is manufactured using a hot-dip galvanizing process.

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