Communication base station tower made of polyurethane composite material

Abstract

The invention belongs to the technical field of communication base stations, and particularly relates to a polyurethane composite material communication base station tower which comprises a tower body, the bottom of the tower body is connected with a fixed base on the ground, and the tower body is obtained by connecting a plurality of rod bodies; a plurality of loop antennas are arranged on the side wall of the tower body, the loop antennas are connected with communication equipment on the ground through transmission wires, and the side wall of the tower body is connected with a plurality of stay wires connected with the ground; by pulling the annular pulling rope, the cleaning ring moves towards the lower side along the stay wire to scrape ice and snow accumulated on the surface of the stay wire, so that the stay wire is fully cleaned, the load bearing of the stay wire is reduced, the stability of a communication base station tower body in rainy and snowy weather is guaranteed, and normal operation of the communication base station tower is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of communication base stations, in particular to a polyurethane composite material communication base station tower. Background Art

[0002] Traditional steel communication towers have drawbacks such as heavy weight, susceptibility to corrosion, short service life, and difficulty in construction, operation, and maintenance, all of which present various safety hazards. Polyurethane composites, with their lightweight, high-strength, corrosion-resistant, electrical insulation, and customizable performance, are ideal materials for communication towers. Using polyurethane composites as the primary material for communication tower construction will extend the tower's service life and reduce the lifecycle cost of infrastructure construction.

[0003] A guyed tower, also known as a mast tower, is a type of communication tower. Its structure primarily consists of a slender pole and several layers of diagonally arranged cables. The pole, the primary load-bearing structure, can be either a standalone solid steel tube structure or a truss-like structure composed of steel tubes, round steel, and angle steel.

[0004] In severe weather, such as strong winds, the tower body will be impacted by external airflow, and the surrounding guy wires pull on the tower body, so that the impact on the tower body is dispersed, thereby ensuring the overall stability of the tower body; in rainy and snowy weather, external ice and snow tend to adhere to and accumulate on the surface of the guy wires, and continue to accumulate on the guy wires, increasing the load on the guy wires. Continuously low temperatures also make it difficult for the ice and snow accumulated on the surface of the guy wires to melt in a short time. At this time, for the stability and safety of the tower body, the guy wires need to be cleaned. The current method is usually to manually climb the tower body or use tools on the bottom side of the tower body to clean it, which is not only inefficient but also very dangerous. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve the above-mentioned technical problems, the present invention proposes a polyurethane composite communication base station tower, comprising a tower body, the bottom of which is connected to a fixed base on the ground, and the tower body is connected to each other by a plurality of rods; the side walls of the tower body are provided with a plurality of loop antennas, the loop antennas are connected to the communication equipment on the ground via transmission wires, and the side walls of the tower body are connected to the ground by a plurality of guy wires; The rod body is made of polyurethane composite material, and the interior of the rod body is a hollow structure forming a vertically extending installation channel; A cleaning ring is nested at the top of the pull wire near the tower body, and a traction rope is connected to the cleaning ring. The end of the traction rope starts from the cleaning ring, passes around the limiting roller arranged near the bottom of the pull wire, and then passes through the mounting hole arranged on the side wall of the fixed base and extends upward along the mounting channel, and finally extends from the positioning hole on the side wall of the rod body and is connected to the cleaning ring, forming a ring structure connected end to end.

[0006] Preferably, the traction rope includes a transmission tube, and a protective layer is provided on the outside of the transmission tube. The protective layer is woven from elastic metal wires and covers the outer surface of the transmission tube. The transmission tube is provided with an air filling port at a position close to the limiting roller, and the surface of the transmission tube is evenly provided with penetration holes, which communicate with the interior of the transmission tube and the gap between the transmission tube and the protective layer.

[0007] Preferably, the pulling line is composed of branch lines, the number of the branch lines is not less than two, a breaking rod is provided on the inner wall of the cleaning ring, the breaking rod passes through the gap between the branch lines, and the pulling rope is connected to the breaking rod.

[0008] Preferably, cleaning rollers are rotatably provided at the positions of both sides of the breaker rod close to the branch line, and cleaning blocks are evenly provided on the cleaning rollers, and the ends of the cleaning blocks are sharp; The inner wall of the cleaning ring is evenly provided with cutting plates, which are distributed in a ring shape around the central axis of the cleaning ring, and inclined surfaces are provided at positions on both sides of the cutting plates close to the openings on both sides of the cleaning ring.

[0009] Preferably, an annular cavity is provided in the side wall of the cleaning ring, and the transmission pipe is communicated with the interior of the annular cavity; a flushing hole is provided on the inner wall of the annular cavity, and the flushing hole is communicated with the interior of the annular cavity, and the flushing hole points to the pull line and traction rope passing through the inside of the cleaning ring.

[0010] Preferably, the cutting plate is evenly provided with serrated cutting blocks at a position close to the central axis of the cleaning ring, and the flushing hole opening is located in the gap between the cutting blocks; the cutting blocks are made of elastic material, and the cutting plate is made of metal.

[0011] Preferably, the interior of the cleaning roller is hollow to form a cleaning cavity, which is communicated with the interior of the annular cavity; a cleaning hole is provided at the end of the cleaning block, which is communicated with the interior of the cleaning cavity.

[0012] Preferably, the side walls of the rod body are evenly provided with conductive plates, the conductive plates extend to the outer surface of the rod body, and the ends of the conductive plates close to the inside of the rod body are provided with extension grooves.

[0013] Preferably, the outer surface of the conductive plate protrudes from the outer surface of the rod side wall, and the inner wall of the extension groove is provided with an extension hole, which points to the joint between the outer surface of the conductive plate and the outer surface of the rod side wall.

[0014] The beneficial effects of the present invention are as follows: The polyurethane composite communication base station tower of the present invention can clean the guy wires through a cleaning ring. Specifically, the processing personnel pull the annular traction rope at the junction of the guy wire and the ground, so that the cleaning ring moves downward along the guy wire, scraping the ice and snow accumulated on the surface of the guy wire, causing it to fall off under the impact and scraping action of the cleaning ring, thereby reducing the load on the guy wire; when the guy wire moves to the bottom position close to the ground, the traction rope is pulled in the opposite direction, so that the cleaning ring moves up along the guy wire again to scrape and clean the ice and snow adhered to the surface of the guy wire, thereby fully cleaning the guy wire, reducing the load bearing capacity of the guy wire, and thus ensuring the stability of the tower body, so that the communication base station tower can operate normally; Furthermore, the traction rope of the present application is arranged in a ring shape, so the traction rope can be driven by forward and reverse pulling to drive the cleaning ring to slide back and forth along the pull line, ensuring that the processing personnel operate outside the dangerous area where ice and snow may fall; and in order to improve efficiency, the output end of the power can be connected to the limiting roller to drive the limiting roller to rotate, thereby driving the traction rope to pull the cleaning ring to slide back and forth along the pull line, further improving the cleaning efficiency of the pull line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 is a perspective view of the present invention; Figure 2 This is a schematic diagram of the cooperation between a section of rod and a cable in the present invention; Figure 3 yes Figure 2 A partial enlarged view of point A in the middle; Figure 4 yes Figure 2 A partial enlarged view of point B in the middle; Figure 5 is a schematic cross-sectional view of the rod body of the present invention; Figure 6 yes Figure 5 A partial enlarged view of point C in the middle; Figure 7 yes Figure 5 A partial enlarged view of point D in the middle; Figure 8 is a perspective view of the cleaning ring of the present invention; Figure 9 is a cross-sectional view of the cleaning ring of the present invention; Figure 10 yes Figure 9 A partial enlarged view of point E in the middle.

[0017] In the figure: tower body 1, fixed base 11, mounting hole 111, rod body 12, mounting channel 121, positioning hole 122, loop antenna 13, pull wire 14, limiting roller 141, branch line 142, conductive plate 15, extension groove 151, extension hole 152, cleaning ring 2, traction rope 21, transmission tube 211, protective layer 212, penetration hole 213, breaking rod 22, cleaning roller 23, cleaning block 231, cleaning cavity 232, cleaning hole 233, cutting plate 24, cutting block 241, annular cavity 25, flushing hole 251. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings shown in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0019] As shown in the accompanying drawings Figures 1-10 As shown, the present application proposes a polyurethane composite communication base station tower, including a tower body 1, the bottom of the tower body 1 is connected to a fixed base 11 on the bottom surface, and the tower body 1 is connected to each other by a plurality of rods 12; a plurality of loop antennas 13 are provided on the side wall of the tower body 1, and the loop antennas 13 are connected to the communication equipment on the ground through transmission wires. The side wall of the tower body 1 is connected to the ground by a plurality of guy wires 14, and the guy wires 14 are distributed in a ring around the central axis of the tower body 1; The rod body 12 is made of a polyurethane composite material, and the interior of the rod body 12 is a hollow structure forming a vertically extending installation channel 121; A cleaning ring 2 is nested in the top of the pull wire 14 near the tower body 1, and a traction rope 21 is connected to the cleaning ring 2. The end of the traction rope 21 starts from the cleaning ring 2 and passes around the limiting roller 141 set near the bottom of the pull wire 14, and then passes through the mounting hole 111 set on the side wall of the fixed base 11 and extends upward along the mounting channel 121, and finally extends from the positioning hole 122 on the side wall of the rod body 12 and is connected to the cleaning ring 2, forming a ring structure connected end to end.

[0020] Specific work flow: Compared with the steel communication pole tower in the prior art, the pole body 12 used in the communication base station tower in this application is made of polyurethane composite material, which has the characteristics of small weight, good corrosion resistance, and is convenient for transportation and installation; at the installation position of the communication base station tower, multiple sections of pole body 12 are connected end to end using fixing parts to form a tower body 1 of a predetermined length, and the tower body 1 is erected and fixed to the fixed base 11 at the bottom by a lifting machine. The tower body 1 can be connected to the side wall of the tower body 1 and the ground by a ring-arranged guy wire 14 around the tower body 1. In this way, multiple connection and fixing points are set up so that the tower body 1 is subjected to a ring-distributed and mutually balanced tension, which enables the tower body 1 to remain stable. Finally, the ring antenna 13, lightning rod and other communication power equipment are installed on the tower body 1 and put into use after testing; the communication data is transmitted or received through the connected communication wires with the ring antenna 13 as the medium, and it functions normally as a node of the communication network; In bad weather, such as strong winds, the tower body 1 will be impacted by external airflow. The surrounding guy wires 14 pull on the tower body 1, so that the impact on the tower body 1 is dispersed, thereby ensuring the stability of the tower body 1 as a whole. In rainy and snowy weather, external ice and snow tend to adhere to and accumulate on the surface of the guy wires 14, and continue to accumulate on the guy wires 14, increasing the load on the guy wires 14. In weather with continuous low temperatures, the ice and snow accumulated on the surface of the guy wires 14 are difficult to melt in a short time. At this time, for the stability and safety of the tower body 1, the guy wires 14 need to be cleaned. The existing method is usually to manually climb up the tower body 1 or use tools on the underside of the tower body 1 to clean it, which is not only inefficient but also very dangerous. The present application can clean the guy wire 14 through the cleaning ring 2. Specifically, the processing personnel pulls the annular traction rope 21 at the junction of the guy wire 14 and the ground, so that the cleaning ring 2 moves downward along the guy wire 14, scraping the ice and snow accumulated on the surface of the guy wire 14, causing it to fall off under the impact and scraping action of the cleaning ring 2, thereby reducing the load on the guy wire 14; when the guy wire 14 moves to the bottom position close to the ground, the traction rope 21 is pulled in the opposite direction, so that the cleaning ring 2 moves upward along the guy wire 14 again to scrape the ice and snow adhered to the surface of the cleaning guy wire 14, thereby fully cleaning the guy wire 14, reducing the load bearing capacity of the guy wire 14, and thus ensuring the stability of the tower body 1, so that the communication base station tower can operate normally; Furthermore, the traction rope 21 of the present application is arranged in a ring shape, so the traction rope 21 can be pulled forward and reverse to drive the cleaning ring 2 to slide back and forth along the pull wire 14, ensuring that the processing personnel operate outside the dangerous area where ice and snow may fall; and in order to improve efficiency, the output end of the power can be connected to the limiting roller 141, driving the limiting roller 141 to rotate, thereby driving the traction rope 21 to pull the cleaning ring 2 to slide back and forth along the pull wire 14, further improving the cleaning efficiency of the pull wire 14. Example

[0021] Based on the first embodiment, the traction rope 21 includes a transmission tube 211. A protective layer 212 is provided on the outside of the transmission tube 211. The protective layer 212 is made of elastic metal wire and covers the outer surface of the transmission tube 211. An inflation port is provided on the transmission pipe 211 near the ground. An air valve is provided inside the inflation port, which is normally closed. When inflation is required, the inflation port can be connected to the air pump equipment pipeline for inflation. In addition, penetration holes 213 are evenly provided on the surface of the transmission pipe 211. The penetration holes 213 connect the interior of the transmission pipe 211 and the gap between the transmission pipe 211 and the protective layer 212. Specific work flow: Based on the specific work flow in Example 1, it is considered that ice and snow freezing in cold weather may cause the traction rope 21 and the pull wire 14 to freeze to each other, making it difficult to pull; therefore, when it is found that the traction rope 21 is difficult to pull during the cleaning process, the outlet pipe of the air pump equipment is first connected to the inflation port on the transmission pipe 211, and the dry hot air flow after heating and filtering is sent into the transmission pipe 211, so that the hot air flow flows along the transmission pipe 21 inside the traction rope 21, and flows out from the penetration holes 213 evenly distributed on the surface of the transmission pipe 211 to the gap between the transmission pipe 211 and the protective layer 212. While heating the protective layer 212, the hot air flow penetrates outward from the gap on the surface of the protective layer 212 and contacts the agglomerated ice and snow adhered and frozen on the outer surface of the traction rope 21, so that the part where the agglomerated ice and snow contacts the traction rope 21 is heated and melted, thereby releasing the freezing and fixation of the traction rope 21, and then the traction rope 21 can be pulled to move relative to the pull wire 14, so as to pull the cleaning ring 2 to scrape the surface of the pull wire 14, thereby cleaning the surface of the pull wire 14; In addition, due to the heating effect of the traction rope 21, the ice and snow frozen on the surface of the pull wire 14 are accelerated to melt and the strength is reduced, thereby reducing the resistance encountered by the cleaning ring 2 when moving to clean the frozen ice and snow, making the cleaning of the ice and snow on the surface of the pull wire 14 more efficient, further ensuring the stability and safety of the tower body 1. Example

[0022] On the basis of the second embodiment, the pull line 14 is composed of branch lines 142, the number of the branch lines 142 is not less than two, the inner wall of the cleaning ring 2 is provided with a breaker rod 22, the breaker rod 22 passes through the gap between the branch lines 142, and the traction rope 21 is connected to the breaker rod 22; Specific workflow: Based on the specific workflow in Example 2, the traction ropes 21 at the same position on the side wall of the tower body 1 can be composed of a group of branch lines 142, which further disperses the impact on the tower body 1. In addition, during long-term tension, even if part of the same group of branch lines 142 breaks, it will not directly lead to the disappearance of the tension in that direction, thereby affecting the safety of the entire tower body 1. In this embodiment, two branches 142 of the same traction rope 21 are selected, which are arranged side by side and in contact with each other. In this way, when ice and snow freeze, the ice and snow on the surface of the branch line 142 will extend to the gap between the two branch lines 142. At this time, the cleaning ring 2 is controlled to slide, and the breaking rod 22 located on the inner wall of the cleaning ring 2 is embedded in the gap between the branch lines 142 and slides downward along the gap area to break the ice in the gap area, and the ice condensed on the surface of the branch line 142 is broken and refined as a whole under the impact, thereby improving the cleaning efficiency of the ice and snow adhering to the pulling line 14. Example

[0023] On the basis of the third embodiment, grooves are provided on both sides of the breaker bar 22 near the branch line 142, and a cleaning roller 23 is rotatably provided inside the groove. Cleaning blocks 231 are evenly provided on the cleaning roller 23, and the ends of the cleaning blocks 231 are sharp and extend out of the groove opening. The inner wall of the cleaning ring 2 is evenly provided with cutting plates 24, which are distributed in a ring shape around the central axis of the cleaning ring 2, and the two sides of the cutting plates 24 are provided with inclined surfaces near the openings on both sides of the cleaning ring 2; An annular cavity 25 is provided in the side wall of the cleaning ring 2, and the transmission pipe 211 is in communication with the interior of the annular cavity 25. A flushing hole 251 is provided on the inner wall of the annular cavity 25, and the flushing hole 251 is in communication with the interior of the annular cavity 25. The flushing hole 251 is directed toward the pull wire 14 and the traction rope 21 passing through the interior of the cleaning ring 2. The annular cavity 25 extends into the interior of the connected breaker rod 22, making it hollow. According to needs, when the ice and snow agglomeration phenomenon is serious, the breaking rod 22 is set to be made of metal material, which has high strength and can be heated by the hot air flowing inside, effectively removing the ice and snow contacting the surface and improving the cleaning efficiency; The cutting plate 24 is evenly provided with serrated cutting blocks 241 near the central axis of the cleaning ring 2, and the flushing holes 251 are opened in the gaps between the cutting blocks 241; the cutting blocks 241 are made of elastic material, and the cutting plate 24 is made of metal.

[0024] The cleaning roller 23 is hollow inside to form a cleaning cavity 232, which communicates with the interior of the annular cavity 25. A cleaning hole 233 is provided at the end of the cleaning block 231, which communicates with the interior of the cleaning cavity 232. Specifically, the cleaning roller 23 is rotatably connected to the groove at the installation position on the breaker bar 22 via a rotating shaft. The rotating shaft is a tubular structure and is embedded in the side wall of the groove and communicates with the annular cavity 25 area extending into the interior of the breaker bar 22. Specific working process: Based on the specific working process in Example 3, when the cleaning ring 2 is pulled and the relatively moving branch line 142 continuously enters the interior of the cleaning ring 2, the cutting plates 24 evenly arranged on the inner wall of the cleaning ring 2 and the cutting blocks 241 evenly distributed on the cutting plates 24 impact the ice and snow clumps contacting the surface of the branch line 142, and the continuous cutting action accelerates the crushing and refinement of the ice and snow. At the same time, as the breaker bar 22 slides along the gap between the branch lines 142 on both sides, the cleaning rollers 23 provided on both sides of the breaker bar 22 contact the surface of the branch line 142 and roll under the action of friction. On the one hand, the rotation of the cleaning rollers 23 can reduce the resistance of the breaker bar 22 during its downward movement. On the other hand, the rotating cleaning rollers 23 drive the cleaning blocks 231 evenly provided on the surface to contact and impact the ice and snow adhered to the surface of the branch line 142, so that the agglomerated ice and snow are broken and refined under the continuous sliding impact of the cleaning blocks 231, thereby accelerating its falling from the branch line 142. As the dry hot air flow enters the transmission pipe 211 and flows along the transmission pipe 211, a part of the dry hot air flow enters the annular cavity 25 on the side wall of the cleaning ring 2, and the cleaning ring 2 is heated to increase its temperature, thereby accelerating the detachment of ice and snow adhered to the surface of the cleaning ring 2, avoiding the situation where the cleaning ring 2 is clumped and difficult to move, and ensuring that the cleaning ring 2 can smoothly clean the ice and snow on the surface of the branch line 142; and a part of the hot air flow can flow into the interior of the interconnected cleaning roller 23, so that the cleaning roller 23 is heated to improve the effect of cleaning the adhered ice and snow, while flowing out from the cleaning holes 233 at the ends of the cleaning blocks 231 evenly distributed on the surface of the cleaning roller 23. When the conical ends of the cleaning blocks 231 are embedded in the adhered ice layer, the hot air flow is prompted to flow out from the cleaning holes 233 and injected into the interior of the ice layer, promoting melting from the inside of the ice layer, reducing the stability of the ice layer, and then promoting the crushing and refinement of the ice layer adhered to the branch line 142, accelerating the detachment, further improving the cleaning effect of the ice layer on the tension wire 14, and ensuring the stability of the tower body 1.

[0025] Furthermore, a portion of the hot air flow flows from the annular cavity 25 into the scouring holes 251 in the cutting plate 24, and then flows out from the openings distributed in the gap area of ​​the cutting block 241, achieving contact impact on the ice and snow adhered to the outer area of ​​the branch line 142, causing it to melt; and the outflowing air flow can also clean the gap area of ​​the cutting block 241, to prevent the crushed ice and snow particles from adhering to the gap area of ​​the cutting block 241 and agglomerating due to the low temperature environment, affecting the cutting block 241's crushing of ice and snow agglomerates; and the cutting block 241 is made of elastic material, which can reduce scratches on the surface of the branch line 142, and the cutting plate 24 is made of metal, which can transfer the heat of the hot air flow passing through the internal scouring holes 251 to the outside. In this process, the temperature of the cutting plate 24 rises, which accelerates the melting of the contacted ice and snow, and further cleans the ice and snow agglomerates that may condense in the gap area of ​​the cutting block 241, ensuring that it can normally play its cleaning role on the branch line 142. Example

[0026] On the basis of the fourth embodiment, the side wall of the rod body 12 is evenly provided with a conductive plate 15, which extends to the outer surface of the rod body 12, and the end of the conductive plate 15 close to the inside of the rod body 12 is provided with an extension groove 151; The outer surface of the conductive plate 15 protrudes from the outer surface of the side wall of the rod body 12, and an extension hole 152 is provided on the inner wall of the extension groove 151. A filter is provided at the outer opening of the extension hole 152 to prevent external dust and impurities from entering the interior of the rod body 12. The extension hole 152 points to the junction between the outer surface of the conductive plate 15 and the outer surface of the side wall of the rod body 12.

[0027] Specific workflow: Based on the specific workflow in Example 4, the rod body 12 is mainly made of a polyurethane composite material, and the conductive plate 15 on the surface of the rod body 12 is made of a heat-conducting metal material. The difference in materials allows the hot air flow to penetrate from the transmission tube 211 in the traction rope 21 into the interior of the rod body 12, and when the temperature inside the rod body 12 rises, there is a difference in the heat transfer from the inside of the rod body 12 to the outside. Because the conductive plate 15 has good thermal conductivity, and the other polyurethane composite parts of the rod body 12 have good thermal insulation performance, there is a temperature difference on the surface of the rod body 12. The temperature of the conductive plate 15 part rises quickly, and the ice attached to the surface melts quickly, while the ice attached to other parts melts slowly. The difference in melting speed may cause the ice layer on the surface of the rod body 12 to deform greatly due to the difference in melting, and the mutual pulling reduces the stability of the surface ice layer, prompting it to break and fall off faster, thereby reducing the load of the ice layer formed on the surface of the rod body 12 and improving the stability of the communication base station tower. Furthermore, the outer surface of the conductive plate 15 protrudes from the outer surface of the side wall of the rod body 12, so that a larger gap area is formed between the outer surface of the conductive plate 15 and the outer surface of the side wall of the rod body 12. In this way, the hot air flowing out from the opening of the extension hole 152 continues to accumulate in the gap between the outer surface of the conductive plate 15 and the outer surface of the side wall of the rod body 12, and penetrates into the gap between the outer surface of the side wall of the rod body 12 and the ice and snow clumps along the tangential direction of the outer surface of the side wall of the rod body 12, accelerating the melting of the ice and snow clumps from the inside to the outside, accelerating the destruction of the stability of the ice and snow clumps on the outer surface of the side wall of the rod body 12, causing them to break and fall faster, and improving the cleaning efficiency of the ice and snow clumps.

[0028] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane composite material communication base station tower, comprising a tower body (1), wherein the bottom of the tower body (1) is connected to a fixed base (11) on the ground, and the tower body (1) is connected to each other through a plurality of rods (12); a plurality of loop antennas (13) are provided on the side wall of the tower body (1), and the loop antennas (13) are connected to communication equipment on the ground through transmission wires; and a plurality of tension wires (14) are connected to the side wall of the tower body (1) and connected to the ground; Its characteristics are: The rod body (12) is made of a polyurethane composite material, and the interior of the rod body (12) is a hollow structure forming a vertically extending installation channel (121); A cleaning ring (2) is nested at the top of the pull wire (14) near the tower body (1), and a traction rope (21) is connected to the cleaning ring (2). The end of the traction rope (21) starts from the cleaning ring (2), passes around a limiting roller (141) arranged near the bottom position of the pull wire (14), and then passes through the installation hole (111) arranged on the side wall of the fixed base (11) and extends upward along the installation channel (121). Finally, it extends out from the positioning hole (122) on the side wall of the rod body (12) and is connected to the cleaning ring (2), forming a ring structure connected end to end.

2. The polyurethane composite communication base station tower according to claim 1, characterized in that: The traction rope (21) includes a transmission tube (211), and a protective layer (212) is provided on the outside of the transmission tube (211). The protective layer (212) is obtained by weaving elastic metal wires and covers the outer surface of the transmission tube (211); The transmission tube (211) is provided with an air filling port at a position close to the limiting roller (141), and the surface of the transmission tube (211) is evenly provided with penetration holes (213), and the penetration holes (213) are connected to the interior of the transmission tube (211) and the gap between the transmission tube (211) and the protective layer (212).

3. The polyurethane composite communication base station tower according to claim 2, characterized in that: The pulling line (14) is composed of branch lines (142), the number of the branch lines (142) is not less than two, the inner wall of the cleaning ring (2) is provided with a crushing rod (22), the crushing rod (22) passes through the gap between the branch lines (142), and the pulling rope (21) is connected to the crushing rod (22).

4. The polyurethane composite communication base station tower according to claim 3, characterized in that: Cleaning rollers (23) are rotatably provided at the positions of both sides of the crushing rod (22) close to the branch line (142), and cleaning blocks (231) are evenly provided on the cleaning rollers (23), and the ends of the cleaning blocks (231) are sharp. The inner wall of the cleaning ring (2) is evenly provided with cutting plates (24), the cutting plates (24) are distributed in a ring shape around the central axis of the cleaning ring (2), and inclined surfaces are provided on both sides of the cutting plates (24) near the openings on both sides of the cleaning ring (2).

5. The polyurethane composite communication base station tower according to claim 4, characterized in that: An annular cavity (25) is provided in the side wall of the cleaning ring (2), and the transmission pipe (211) is communicated with the interior of the annular cavity (25); a flushing hole (251) is provided on the inner wall of the annular cavity (25), and the flushing hole (251) is communicated with the interior of the annular cavity (25), and the flushing hole (251) points to the pull line (14) and the traction rope (21) passing through the interior of the cleaning ring (2).

6. The polyurethane composite communication base station tower according to claim 5, characterized in that: The cutting plate (24) is evenly provided with sawtooth-shaped cutting blocks (241) at a position close to the central axis of the cleaning ring (2), and the flushing holes (251) are opened in the gaps between the cutting blocks (241); the cutting blocks (241) are made of elastic material, and the cutting plate (24) is made of metal.

7. The polyurethane composite communication base station tower according to claim 6, characterized in that: The cleaning roller (23) is hollow inside to form a cleaning cavity (232), and the cleaning cavity (232) is communicated with the inside of the annular cavity (25). The end of the cleaning block (231) is provided with a cleaning hole (233), and the cleaning hole (233) is communicated with the inside of the cleaning cavity (232).

8. The polyurethane composite communication base station tower according to claim 7, characterized in that: Conductive plates (15) are evenly arranged on the side walls of the rod body (12), and the conductive plates (15) extend to the outer surface of the rod body (12). An extension groove (151) is provided at the end of the conductive plate (15) close to the inside of the rod body (12).

9. The polyurethane composite communication base station tower according to claim 8, characterized in that: The outer surface of the conductive plate (15) protrudes from the outer surface of the side wall of the rod body (12), and the inner wall of the extension groove (151) is provided with an extension hole (152), and the extension hole (152) points to the joint between the outer surface of the conductive plate (15) and the outer surface of the side wall of the rod body (12).

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