Steel pipe pole of power transmission line

Abstract

The invention relates to the technical field of steel pipe poles, in particular to a power transmission line steel pipe pole which comprises a main pole, the main pole is fixed to the ground through a connecting piece, a plurality of sets of cross arms are symmetrically arranged at the position, close to the upper end, of the main pole, a clamping block is installed at the top of the main pole, a cavity is formed in a sealing plug, and a clamping groove is formed in the cavity. A round hopper is arranged on the upper portion of the sealing plug, a pipe body is installed in the middle of the round hopper, and a cylinder assembly is arranged in the pipe body. The middle position of the round hopper communicates with the interior of the cavity through the water inlet and the channel, and a plurality of water outlet holes are formed in the outer portion of the sealing plug. The top of the steel pipe pole is provided with the sealing plug, the top of the sealing plug is provided with the corresponding purification structure, and the purification structure can flow from the outer surface of the steel pipe pole after being mixed with rainwater in rainy days, so that chloride ions on the outer surface of the steel pipe pole can be removed, and pitting corrosion can be inhibited to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe poles, and in particular to a steel pipe pole for a power transmission line. Background Art

[0002] Transmission line steel pipe poles are a structure used to support and transmit electricity. They are mainly made of steel pipes and usually adopt flange connection or socket connection. They have high strength and stability. Common structures include single-pole, double-pole and multi-pole structures, which can be selected according to different transmission needs and environmental conditions.

[0003] There is a steel pipe pole for power transmission lines with a publication number of CN102312601B, which includes a main pole and a cross arm fixed on the main pole. The bottom of the main pole is provided with a bottom flange. The main pole is formed by connecting two or more hollow conical poles. The top of the main pole is provided with a plug. The lower part of the main pole is provided with a grounding electrode. The cross arm is connected to the main pole through a cross arm connecting plate. The cross arm connecting plate is fixed on the main pole. The cross arm and the cross arm connecting plate are connected by bolts. The cross section of the main pole is a circular ring. The steel pipe pole for power transmission lines has a plug on the top of the main pole to prevent the entry of air and rainwater. The main pole will not oxidize and rust, and is not easily corroded, which prolongs the service life of the main pole. The cross arm is easy to install and fix. The main pole is a segmented structure, easy to process, easy to construct, safe and reliable in operation, and less maintenance work, so it has a good value for promotion and application.

[0004] The above-mentioned transmission line steel pipe pole is provided with a plug at the top of the pipe body to prevent rainwater and air from entering the pipe and causing corrosion inside the pipe. However, in coastal areas, the external environment is often accompanied by the appearance of salt spray. The appearance of salt spray will cause chloride ions on the surface of the steel pipe pole. These adhered chloride ions will penetrate the passivation film to cause pitting corrosion and accelerate the corrosion of the outer surface of the steel pipe pole. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a steel pipe pole for a power transmission line.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: Design a transmission line steel pipe pole, including a main pole, the main pole is fixed on the ground by a connecting piece: A plurality of groups of cross arms are symmetrically arranged near the upper end of the main rod, a clamping block is installed at the top of the main rod, a sealing plug is arranged on the upper part of the clamping block, a chamber is arranged inside the sealing plug, a round bucket is arranged on the upper part of the sealing plug, a tube body is installed in the middle of the round bucket, and a column assembly is arranged inside the tube body; The middle part of the round bucket is connected with the interior of the chamber through a water inlet and a channel, and a plurality of water outlet holes are arranged on the outside of the sealing plug.

[0007] Preferably, an annular plate is provided at the outer lower end of the sealing plug, a gap is provided between the annular plate and the top of the main rod, and an annular water baffle is provided at the top of the main rod near the block position.

[0008] Preferably, the column assembly includes a first cavity, a partition, a second cavity, a shell and a first overflow hole; The partition is arranged on the inner side of the shell, and the partition divides the inner side of the shell into a first cavity and a second cavity. The first overflow holes are distributed in a ring shape at the lower end of the shell.

[0009] Preferably, a plurality of baffles are slidably disposed in the first cavity and the second cavity, the plurality of baffles are distributed longitudinally, and the size of the baffles matches the horizontal cross-sectional size of the first cavity or the second cavity.

[0010] Preferably, the first cavity is filled with sodium bicarbonate powder, the second cavity is filled with barium hydroxide powder, and these compound powders are respectively filled between two adjacent baffles.

[0011] Preferably, a track is provided on the inner wall of the tube body in the longitudinal direction, and a clamping block is provided on the outer side of the shell. The clamping block is slidably arranged in the track, and the outer surface of the shell fits the inner surface of the tube body.

[0012] Preferably, a plurality of second overflow holes are distributed in a ring shape at the lower end of the tube body, and when the position of the outer shell rises to a certain height, the second overflow holes correspond to the first overflow holes one by one.

[0013] Preferably, a buoy is floating inside the chamber, a floating body is provided with a floating bar at a circumferential position of the floating body, the other end of the floating bar is in contact with the inner wall of the chamber, a top rod is vertically provided at the upper end of the floating body, and the top rod is located in the axial direction of the outer shell.

[0014] Preferably, the position of the second overflow hole matches the position of the water outlet hole.

[0015] Preferably, the top cover of the housing is detachably mounted at the top position of the housing.

[0016] A transmission line steel pipe pole proposed by the present invention has the beneficial effect that: in addition to installing a sealing plug on the top of the steel pipe pole, a corresponding purification structure is arranged on the top of the sealing plug. In rainy weather, the structure can mix with rainwater and flow from the outer surface of the steel pipe pole, thereby removing chloride ions on the outer surface of the steel pipe pole, thereby inhibiting the occurrence of pitting corrosion to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a steel pipe pole for a power transmission line.

[0018] Figure 2 The present invention is a schematic structural diagram of a round bucket for a steel pipe pole of a power transmission line.

[0019] Figure 3 The present invention is a structural cross-sectional view of a round bucket of a steel pipe pole for a power transmission line.

[0020] Figure 4 for Figure 3 An enlarged view of the structure of section A of a proposed steel tube pole for a transmission line.

[0021] Figure 5 The present invention is a schematic structural diagram of a column assembly of a steel pipe pole for a power transmission line.

[0022] Figure 6 The present invention is a schematic diagram of the internal structure of a column assembly of a steel pipe pole for a power transmission line.

[0023] Figure 7 The present invention is a schematic structural diagram of a floating body of a steel pipe pole for a power transmission line.

[0024] Figure 8 The present invention provides a schematic structural diagram of the positional relationship between a track and a slider of a steel pipe pole for a power transmission line.

[0025] In the figure: round bucket 1, tube body 2, cross arm 3, main rod 4, connecting piece 5, water inlet 6, sealing plug 7, water outlet 8, annular plate 9, channel 10, floating strip 11, chamber 12, float 13, column assembly 14, first cavity 1401, partition 1402, second cavity 1403, shell 1404, first overflow hole 1405, water baffle 15, baffle 16, top rod 17, block 18, second overflow hole 19, track 20, slider 21. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1, reference Figure 1-3A steel pipe pole for a power transmission line comprises a main pole 4, which is fixed to the ground by a connecting piece 5. A plurality of cross arms 3 are symmetrically arranged near the upper end of the main pole 4. A clamping block 18 is installed at the top of the main pole 4. A sealing plug 7 is arranged on the upper part of the clamping block 18. A chamber 12 is arranged inside the sealing plug 7. A round bucket 1 is arranged on the upper part of the sealing plug 7. A pipe body 2 is installed in the middle of the round bucket 1, and a column assembly 14 is arranged inside the pipe body 2.

[0028] The middle part of the round bucket 1 is connected to the interior of the chamber 12 through the water inlet 6, the channel 10, and the sealing plug 7 is provided with a plurality of water outlet holes 8 on the outside. The column assembly 14 includes a first cavity 1401, a partition 1402, a second cavity 1403, an outer shell 1404 and a first overflow hole 1405. The partition 1402 is arranged on the inner side of the outer shell 1404. The partition 1402 divides the inner side of the outer shell 1404 into a first cavity 1401 and a second cavity 1403. The first overflow hole 1405 is distributed in a ring shape at the lower end of the outer shell 1404.

[0029] Reference Figure 8 A track 20 is longitudinally provided on the inner wall of the tube body 2 , and a block 18 is provided on the outer side of the shell 1404 . The block 18 is slidably arranged in the track 20 , and the outer surface of the shell 1404 fits the inner surface of the tube body 2 .

[0030] Reference Figure 7 The lower end of the tube body 2 is provided with a plurality of second overflow holes 19 in a ring shape. When the position of the outer shell 1404 rises to a certain height, the second overflow holes 19 correspond to the first overflow holes 1405 one by one. A float 13 floats inside the chamber 12. A floating bar 11 is installed at a circumferential position of the float 13. The other end of the floating bar 11 is in contact with the inner wall of the chamber 12. A top rod 17 is vertically provided at the upper end of the float 13, and the top rod 17 is located in the axial direction of the outer shell 1404. The position of the second overflow hole 19 matches the position of the water outlet hole 8. The top cover of the outer shell 1404 is detachably installed at the top position of the outer shell 1404.

[0031] A block 18 is provided on the top of the main rod 4, and a sealing plug 7 is provided on the upper part of the block 18. The bottom of the sealing plug 7 covers the upper end of the main rod 4 to prevent external air and water from entering the main rod 4 and causing corrosion.

[0032] The round bucket 1 is in the shape of a bowl with an opening at the upper end. One of the main functions of the round bucket 1 is to collect rainwater. When it rains in coastal areas, rainwater enters the round bucket 1, causing the liquid level to rise. When the liquid level reaches a height that matches the water inlet 6, water enters the channel 10 from the water inlet 6, and then enters the chamber 12 inside the sealing plug 7 through the channel 10. When the water gathers inside the chamber 12, the positions of the floating bar 11 and the floating body 13 will rise, and the top rod 17 at the upper end of the floating body 13 will be subject to an upward lifting force. In the process of contacting with the outer shell 1404, the outer shell 1404 is lifted upward. In the initial state, the outer shell 1404 The first overflow hole 1405 on the outer shell 1404 does not overlap with the second overflow hole 19 outside the tube body 2. During the continuous rising of the outer shell 1404, the first overflow hole 1405 and the second overflow hole 19 overlap with each other, and water enters the first cavity 1401 inside the outer shell 1404. During this process, water contacts the sodium bicarbonate powder in the first cavity 1401, and the dissolved solution enters the chamber 12 and is then discharged from the water outlet 8. Sodium bicarbonate can effectively react with the chloride ions in the salt mist and remove the chloride ions outside the main rod 4, thereby preventing the problem of pitting corrosion on the outer surface of the main rod 4 caused by the salt mist.

[0033] Rainwater may contain some acidic and corrosive substances, so the rainwater also needs to be treated to prevent the inner wall of the chamber 12 from being corroded.

[0034] Usually, corrosive rainwater contains nitrate ions and sulfate ions. Both ions can react with barium hydroxide solution to produce corresponding salts to treat nitrate ions and sulfate ions. To this end, barium hydroxide is filled in the second cavity 1403 to form a solution after being dissolved in water. The nitrate ions and sulfate ions are treated in the chamber 12, so that the corrosive substances in the rainwater cannot corrode the inner wall of the chamber 12.

[0035] Example 2, reference Figure 4 The difference between this embodiment and embodiment 1 is that an annular plate 9 is provided at the outer lower end of the sealing plug 7, a gap is provided between the annular plate 9 and the top of the main rod 4, and an annular water baffle 15 is provided at the top of the main rod 4 near the block 18.

[0036] Since the vertical cross-sections of the sealing plug 7 and the main rod 4 are stepped, the solution discharged from the water outlet 8 is prevented from falling smoothly from the surface of the main rod 4. At this time, an annular plate 9 is provided to catch the water discharged from the water outlet 8. The water passes through the annular plate 9 and directly falls on the top of the main rod 4 and flows down. At the same time, the water baffle 15 arranged at the inner circle position of the top of the main rod 4 can block the water and prevent the water flow from entering the interior of the main rod 4 from the gap between the block 18 and the main rod 4.

[0037] Example 3, reference Figure 5-6 The difference between this embodiment and Embodiment 1 and Embodiment 2 is that a plurality of baffles 16 are slidably arranged in the first cavity 1401 and the second cavity 1403, the plurality of baffles 16 are longitudinally distributed, and the size of the baffles 16 matches the horizontal cross-sectional size of the first cavity 1401 and the second cavity 1403, the first cavity 1401 is filled with sodium bicarbonate powder, the second cavity 1403 is filled with barium hydroxide powder, and these compound powders are respectively filled between two adjacent baffles 16.

[0038] When water enters the first cavity 1401 and the second cavity 1403 from the second overflow hole 19, it will come into contact with the internal compounds. When the liquid level drops, the internal compounds of the first cavity 1401 and the second cavity 1403 are also consumed, and maintenance personnel are required to add them later, which increases the difficulty of maintenance.

[0039] To this end, a plurality of mutually parallel baffles 16 are arranged inside the first cavity 1401 and the second cavity 1403, and compounds are filled between two adjacent baffles 16. Since the first overflow hole 1405 is located at the lower end of the shell 1404, when water contacts and dissolves the compound at the lower end, the aqueous solution is discharged from the second overflow hole 19 into the chamber 12. After being discharged, the baffle 16 at the upper end and the compound will automatically fall down, continue to contact and dissolve with water, and when the liquid level drops, the height of the shell 1404 drops. At this time, the positions of the first overflow hole 1405 and the second overflow hole 19 do not overlap, and the solution in the shell 1404 cannot flow out. In this way, the baffle 16 can effectively protect the compounds that do not participate in the reaction.

[0040] The working principle of the device is: A block 18 is provided on the top of the main rod 4, and a sealing plug 7 is provided on the upper part of the block 18. The bottom of the sealing plug 7 covers the upper end of the main rod 4 to prevent external air and water from entering the main rod 4 and causing corrosion.

[0041] The round bucket 1 is in the shape of a bowl with an opening at the upper end. One of the main functions of the round bucket 1 is to collect rainwater. When it rains in coastal areas, rainwater enters the round bucket 1, causing the liquid level to rise. When the liquid level reaches a height that matches the water inlet 6, water enters the channel 10 from the water inlet 6, and then enters the chamber 12 inside the sealing plug 7 through the channel 10. When the water gathers inside the chamber 12, the positions of the floating bar 11 and the floating body 13 will rise, and the top rod 17 at the upper end of the floating body 13 will be subject to an upward lifting force. In the process of contacting with the outer shell 1404, the outer shell 1404 is lifted upward. In the initial state, the outer shell 1404 The first overflow hole 1405 on the outer shell 1404 does not overlap with the second overflow hole 19 outside the tube body 2. During the continuous rising of the outer shell 1404, the first overflow hole 1405 and the second overflow hole 19 overlap with each other, and water enters the first cavity 1401 inside the outer shell 1404. During this process, water contacts the sodium bicarbonate powder in the first cavity 1401, and the dissolved solution enters the chamber 12 and is then discharged from the water outlet 8. Sodium bicarbonate can effectively react with the chloride ions in the salt mist and remove the chloride ions outside the main rod 4, thereby preventing the problem of pitting corrosion on the outer surface of the main rod 4 caused by the salt mist.

[0042] Secondly, since the vertical cross-section of the sealing plug 7 and the main rod 4 is stepped, the solution discharged from the water outlet 8 is prevented from falling smoothly from the surface of the main rod 4. At this time, an annular plate 9 is provided to catch the water discharged from the water outlet 8. The water passes through the annular plate 9 and directly falls on the top of the main rod 4 and flows down. At the same time, the water baffle 15 arranged at the inner circle position of the top of the main rod 4 can block the water and prevent the water flow from entering the interior of the main rod 4 from the gap between the block 18 and the main rod 4.

[0043] Rainwater may contain some acidic and corrosive substances, so the rainwater also needs to be treated to prevent the inner wall of the chamber 12 from being corroded.

[0044] Usually, corrosive rainwater contains nitrate ions and sulfate ions. Both ions can react with barium hydroxide solution to produce corresponding salts to treat nitrate ions and sulfate ions. To this end, barium hydroxide is filled in the second cavity 1403 to form a solution after being dissolved in water. The nitrate ions and sulfate ions are treated in the chamber 12, so that the corrosive substances in the rainwater cannot corrode the inner wall of the chamber 12.

[0045] When water enters the first cavity 1401 and the second cavity 1403 from the second overflow hole 19, it will come into contact with the internal compounds. When the liquid level drops, the internal compounds of the first cavity 1401 and the second cavity 1403 are also consumed, and maintenance personnel are required to add them later, which increases the difficulty of maintenance.

[0046] To this end, a plurality of mutually parallel baffles 16 are arranged inside the first cavity 1401 and the second cavity 1403, and compounds are filled between two adjacent baffles 16. Since the first overflow hole 1405 is located at the lower end of the shell 1404, when water contacts and dissolves the compound at the lower end, the aqueous solution is discharged from the second overflow hole 19 into the chamber 12. After being discharged, the baffle 16 at the upper end and the compound will automatically fall down, continue to contact and dissolve with water, and when the liquid level drops, the height of the shell 1404 drops. At this time, the positions of the first overflow hole 1405 and the second overflow hole 19 do not overlap, and the solution in the shell 1404 cannot flow out. In this way, the baffle 16 can effectively protect the compounds that do not participate in the reaction.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel pipe pole for a power transmission line, comprising a main pole (4), wherein the main pole (4) is fixed to the ground via a connecting piece (5), characterized in that: A plurality of groups of cross arms (3) are symmetrically arranged near the upper end of the main rod (4); a clamping block (18) is installed at the top of the main rod (4); a sealing plug (7) is arranged on the upper part of the clamping block (18); a chamber (12) is arranged inside the sealing plug (7); a round bucket (1) is arranged on the upper part of the sealing plug (7); a tube body (2) is installed in the middle of the round bucket (1); a column assembly (14) is arranged inside the tube body (2); The middle of the round bucket (1) is connected to the interior of the chamber (12) through the water inlet (6) and the channel (10), and a plurality of water outlet holes (8) are arranged on the outside of the sealing plug (7).

2. The power transmission line steel pipe pole according to claim 1, characterized in that: An annular plate (9) is provided at the outer lower end of the sealing plug (7), a gap is provided between the annular plate (9) and the top of the main rod (4), and an annular water baffle (15) is provided at the top of the main rod (4) near the position of the clamping block (18).

3. The power transmission line steel pipe pole according to claim 2, characterized in that: The column assembly (14) comprises a first cavity (1401), a partition (1402), a second cavity (1403), a shell (1404), and a first overflow hole (1405); The partition (1402) is arranged on the inner side of the outer shell (1404), and the partition (1402) divides the inner side of the outer shell (1404) into a first cavity (1401) and a second cavity (1403). The first overflow holes (1405) are distributed in a ring shape at the lower end of the outer shell (1404).

4. The power transmission line steel pipe pole according to claim 3, characterized in that: A plurality of baffles (16) are slidably arranged in both the first cavity (1401) and the second cavity (1403); the plurality of baffles (16) are distributed longitudinally, and the size of the baffles (16) matches the horizontal cross-sectional size of the first cavity (1401) and the second cavity (1403).

5. The steel pipe pole for power transmission lines according to claim 4, characterized in that: The first cavity (1401) is filled with sodium bicarbonate powder, and the second cavity (1403) is filled with barium hydroxide powder, and these compound powders are respectively filled between two adjacent baffles (16).

6. The steel pipe pole for power transmission lines according to claim 5, characterized in that: The inner wall of the tube body (2) is provided with a track (20) in the longitudinal direction, and a clamping block (18) is provided on the outer side of the outer shell (1404). The clamping block (18) is slidably arranged in the track (20), and the outer surface of the outer shell (1404) fits the inner surface of the tube body (2).

7. The steel pipe pole for power transmission lines according to claim 6, characterized in that: The lower end of the tube body (2) is provided with a plurality of second overflow holes (19) distributed in a ring shape. When the position of the outer shell (1404) rises to a certain height, the second overflow holes (19) correspond one by one to the first overflow holes (1405).

8. The steel pipe pole for power transmission lines according to claim 7, characterized in that: A buoy (13) floats inside the chamber (12), a floating bar (11) is installed at a circumferential position of the floating body (13), the other end of the floating bar (11) is in contact with the inner wall of the chamber (12), and a top rod (17) is vertically arranged at the upper end of the floating body (13), and the top rod (17) is located in the direction of the axial centerline of the outer shell (1404).

9. The steel pipe pole for power transmission lines according to claim 7, characterized in that: The position of the second overflow hole (19) matches the position of the water outlet hole (8).

10. The steel pipe pole for power transmission lines according to claim 7, characterized in that: The top cover of the housing (1404) is detachably mounted at the top position of the housing (1404).

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