CN111706144B - Large-scale steel pipe tower - Google Patents
Large-scale steel pipe tower Download PDFInfo
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- CN111706144B CN111706144B CN202010592499.5A CN202010592499A CN111706144B CN 111706144 B CN111706144 B CN 111706144B CN 202010592499 A CN202010592499 A CN 202010592499A CN 111706144 B CN111706144 B CN 111706144B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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Abstract
The invention discloses a large-scale steel pipe tower which comprises a steel pipe main body and a flange centering assembly, wherein the flange centering assembly is arranged in the steel pipe main body, the steel pipe main body comprises a main steel pipe and a branch steel pipe, the flange centering assembly comprises a centering main part and a centering auxiliary part, the centering main part is fixed on the inner wall of the main steel pipe, and the centering auxiliary part is fixed on the inner wall of the branch steel pipe. The flange plate centering assembly enables the branch steel pipe to rotate in the main steel pipe, and the bolt holes in the flange plate a correspond to the bolt holes in the flange plate b, so that centering of the flange plate a and the flange plate b is achieved, the difficulty of segmental tower erection is greatly reduced, the requirement on the level of hoisting operators is lowered, the dead time of the branch steel pipe is reduced, the branch steel pipe can be installed more quickly and accurately, and the safety risk is reduced.
Description
Technical Field
The invention relates to the field of steel pipe towers, in particular to a large-scale steel pipe tower.
Background
At present, the power line plug-in type steel pipe tower is popularized and produced in China due to the advantages of attractive appearance, small occupied area, few installation procedures, high mechanical strength and the like, is gradually used for replacing the traditional angle iron tower and concrete cement pole, becomes the mainstream trend of the future external frame tower, and is particularly widely used in urban areas. However, in the actual popularization, installation and use processes, some obvious problems caused by insufficient design considerations are encountered, certain difficulties are caused to installation and assembly of field constructors, and improvement is needed.
Nowadays, the power line tower erection mode has many different hoisting equipment and different hoisting modes. However, for the power line plug-in type steel pipe tower, the tower body is composed of a plurality of sections of steel pipes, and the tower erecting mode can be roughly divided into two types:
one type is an integral vertical tower, a steel pipe tower is installed on the ground and inserted, and then the vertical tower is integrally lifted.
The other type is a sectional tower erection mode, which only can carry out sectional hoisting on a steel pipe tower to complete splicing in consideration of the safety hoisting limit of hoisting equipment and the limitation of a construction site. Therefore, when a construction unit considers that the actual conditions on site cannot meet the requirements of integral tower erection, when a segmented tower erection mode is adopted, the difficulty of hoisting and splicing is very high because the condition of the segmented tower erection cannot be fully considered in the current steel pipe tower splicing opening design, and splicing is usually completed by means of skillful exertion of hoisting equipment operators, so that the dead time of the hoisted upper section steel pipe is obviously increased, the dead time becomes one of important factors influencing hoisting safety, and the safety of site personnel, equipment and property is seriously damaged.
At present, the steel pipe tower is generally integrally connected by adopting flange connection and conical insertion. The flange connection mode is used for connecting steel pipes between the tower bodies and connecting the cross arm and the tower bodies, and the application is most extensive.
Because the restriction of hoisting equipment and operation place, most places can only adopt the mode of segmentation tower erection, need to lift a steel pipe and peg graft in main steel pipe, then fix through the ring flange, but when a steel pipe is pegged graft in main steel pipe, because main steel pipe does not have the guide effect, lead to the bolt hole of ring flange on a steel pipe to hardly correspond with the bolt hole of ring flange on the main steel pipe, need carry out debugging many times and just can correspond, thereby the degree of difficulty of segmentation tower erection has been increased, have high requirement to hoisting equipment operating personnel's technical merit, the dead time of a steel pipe increases simultaneously, has higher safety risk.
The flange has strong fixing strength, but has the problem of poor sealing performance, and a gap is inevitably formed between the flange plates after installation, so that complete sealing cannot be realized, and water is easy to seep into the steel pipe rod or generate condensed water in rainy days or wet days (return south). And as the steel pipe pole base is tightly connected with the top surface of the pile foundation through the flange plate, rainwater and condensed water on the inner wall of the steel pipe pole and the bottom of the pipe cannot be discharged, long-term water accumulation causes corrosion damage inside the bottom of the steel pipe pole, the design service life of the steel pipe pole is seriously influenced, and the safety risk of fracture and toppling due to strength reduction exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a large steel pipe tower, bolt holes on two flanges are quickly and effectively corresponded by a flange centering assembly, the difficulty of sectional tower erection is greatly reduced, the requirement on the level of hoisting operators is reduced, simultaneously rainwater infiltrated into the interior of a steel pipe main body or condensed water generated in humid weather can be collected and discharged for treatment, the corrosion damage caused by long-term water accumulation in the interior of the bottom of a main steel pipe is avoided,
the purpose of the invention is realized by the following technical scheme: a large-scale steel tube tower comprises a steel tube main body and a flange centering assembly, wherein the flange centering assembly is arranged in the steel tube main body;
the steel pipe main body comprises a main steel pipe and a branch steel pipe, a water collecting part is arranged on the inner wall of the main steel pipe, a flange plate a is fixed at one end of the main steel pipe, a flange base is fixed at the other end of the main steel pipe, a flange plate b is fixed at one end of the branch steel pipe, a ventilation part is fixed at the other end of the branch steel pipe, a plurality of bolt holes are formed in the flange plate a, the bolt holes are circumferentially and uniformly distributed, and the flange plate b and the flange plate a are identical in structure;
the flange centering assembly comprises a centering main part and a centering auxiliary part, the centering main part is fixed on the inner wall of the main steel pipe, and the centering auxiliary part is fixed on the inner wall of the branch steel pipe;
the centering main part comprises a round seat and a plurality of centering bosses fixed at the end part of the round seat, one end of the round seat is provided with a through round hole, the centering bosses are uniformly distributed on the circumference, concave arc-shaped grooves are respectively formed between two adjacent centering bosses on the round seat, and the two sides of the centering bosses are in arc transition with the arc-shaped grooves;
the number of the centering bosses is consistent with that of the bolt holes, and the arc-shaped groove is positioned right in front of the bolt holes;
the centering auxiliary part comprises a circular ring seat and a plurality of centering columns, the centering columns are fixed on the inner wall of the circular ring seat and are circumferentially and uniformly distributed, the bottoms of the centering columns are provided with spherical surfaces, one bolt hole corresponds to each centering column, and the circle centers of the centering columns, the circle centers of the bolt holes in the flange b and the circle centers of the branch steel pipes are on the same straight line;
when the bottoms of the centering columns are matched with the arc-shaped grooves, the flange plate a is contacted with the flange plate b;
the water collecting piece is a cone, a water collecting cavity is formed in the water collecting piece, one end with a large diameter of the water collecting piece is close to the flange a and is attached to the inner wall of the main steel pipe, a water outlet is formed in one side of the main steel pipe, a water discharging pipe is arranged on the water collecting piece, one end of the water discharging pipe is communicated with the water collecting cavity, and the other end of the water discharging pipe penetrates through the water outlet to be communicated with the outside;
the centering column sequentially consists of a cylindrical section, a frustum section and a round ball section from top to bottom, the cylindrical section is embedded on the inner wall of the circular ring seat, and the centering column is integrally manufactured;
the center of the arc-shaped groove is provided with a round ball groove, and the round ball section is matched with the round ball groove.
Furthermore, the circular arcs on the two sides of the centering boss intersect at the top of the centering boss.
Further, the ventilation piece includes ventilation steel pipe and buckler, the ventilation steel pipe is hollow structure, the one end of ventilation steel pipe is fixed with the buckler, the other end with it is fixed to prop up the steel pipe, set up a plurality of vents along longitudinal extension on the pipe wall of ventilation steel pipe, the vent is close to the buckler sets up.
Furthermore, the waterproof cover is of an umbrella-shaped structure, the diameter of one end with the large diameter of the waterproof cover is larger than that of the flange plate a, and the end with the large diameter of the waterproof cover extends to the bottom of the ventilation opening.
Furthermore, a transition inclined plane is arranged between the inner wall and the outer wall of the large-diameter end of the water collecting piece, and the transition inclined plane is inclined downwards.
Furthermore, a plurality of cross arms are arranged on the branch steel pipes.
The invention has the beneficial effects that:
1. the utility model provides a large-scale steel pipe tower, when a steel pipe is pegged graft in the main steel pipe, ring flange centering subassembly makes a steel pipe produce the rotation in main steel pipe, makes the bolt hole on the ring flange a correspond with the bolt hole on the ring flange b to accomplish the centering of ring flange a and ring flange b, great reduction the degree of difficulty of segmentation tower erection, reduced the requirement to jack-up operating personnel horizontally, reduced the dead time of a steel pipe, make the installation of a steel pipe more swift and accurate, reduced the safety risk.
2. The inside water-collecting piece that is provided with of main steel pipe, the rainwater that permeates the steel pipe main part falls into the water-collecting intracavity on the water-collecting piece, through the drain pipe with the rainwater discharge outside the steel pipe pole, can avoid the inside long-term ponding at the bottom of the steel pipe main part to lead to the corrosion damage from this, influence the design life and the structural strength of steel pipe main part, eliminate the fracture of steel pipe main part root and the safe risk that appears toppling.
3. The top of propping up the steel pipe is provided with the piece that ventilates, and the piece that ventilates comprises ventilation steel pipe, buckler and flange, has seted up a plurality of vents along longitudinal extension on the pipe wall of ventilation steel pipe, and the vent makes the inside of steel pipe main part have better ventilation effect, can be quick air-dry the drop of water on the inner wall of steel pipe main part, and the inner wall of protection steel pipe main part is not corroded, and the buckler can effectually prevent that the rainwater from entering into the steel pipe main part from the vent simultaneously.
4. Be provided with the transition inclined plane between the inner wall of a major diameter one end of catchment piece and the outer wall, the inclined plane downward sloping of transition sets up, avoids partial rainwater to store on the terminal surface of catchment piece major diameter to lead to the fact the corruption to the welding department of catchment piece and main steel pipe, lead to catchment piece and main steel pipe's inner wall to produce the gap, thereby make the rainwater permeate the bottom of main steel pipe and cause the corrosion damage.
Drawings
FIG. 1 is a schematic diagram of the matching of a centering main part and a centering auxiliary part in a large steel pipe tower according to the invention;
FIG. 2 is a schematic structural view of a centering main part in a large steel tube tower according to the invention;
FIG. 3 is a perspective view of a centering auxiliary member in a large steel tube tower according to the present invention;
FIG. 4 is a front view of a centering auxiliary member in a large steel tube tower according to the present invention;
FIG. 5 is a schematic view of the overall structure of a large steel tube tower according to the present invention;
FIG. 6 is a front view of a large steel tube tower according to the present invention;
FIG. 7 is a schematic diagram of the water collecting part and the main steel pipe in a large steel pipe tower according to the present invention;
FIG. 8 is a perspective view of a water collecting member in a large steel tube tower according to the present invention;
in the figure, 1-a steel pipe body, 2-a main steel pipe, 3-a steel pipe, 4-a flange plate a, 5-a flange plate b, 6-a ventilation piece, 7-a water collection piece, 8-a bolt hole, 9-a water collection cavity, 10-a water discharge hole, 11-a water discharge pipe, 15-a ventilation steel pipe, 16-a waterproof cover, 17-a ventilation hole, 18-a transition inclined plane, 19-a cross arm, 21-a centering main piece, 22-a centering auxiliary piece, 23-a circular base, 24-a centering boss, 25-a circular hole, 26-an arc-shaped groove, 27-a circular ring base, 28-a centering column, 29-a cylindrical section, 30-a frustum section, 31-a spherical section and 32-a spherical groove.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 to 8, the large steel tube tower comprises a steel tube main body 1 and a flange centering assembly, wherein the flange centering assembly is arranged in the steel tube main body 1;
the steel pipe main body 1 comprises a main steel pipe 2 and a branch steel pipe 3, a water collecting piece 7 is arranged on the inner wall of the main steel pipe 2, a flange a4 is fixed at one end of the main steel pipe 2, a flange base is fixed at the other end of the main steel pipe, a flange b5 is fixed at one end of the branch steel pipe 3, a ventilating piece 6 is fixed at the other end of the branch steel pipe, a plurality of bolt holes 8 are formed in the flange a4, the bolt holes 8 are circumferentially and uniformly distributed, and the flange b5 and the flange a4 are identical in structure;
as shown in FIG. 1, the distance between the centers of the bolt holes 8 in the flange a4 and the center of the steel pipe body 1 is equal to the distance between the centers of the bolt holes 8 in the flange b5 and the center of the steel pipe body 1, so that the bolt holes 8 in the flange a4 correspond to the bolt holes 8 in the flange b5, and flange connection is realized.
The flange centering assembly 2 comprises a centering main part 21 and a centering auxiliary part 22, the centering main part 21 is fixed on the inner wall of the main steel pipe 2, and the centering auxiliary part 22 is fixed on the inner wall of the branch steel pipe 3;
as shown in fig. 2, the centering main part 21 includes a circular base 23 and a plurality of centering bosses 24 fixed at an end of the circular base 23, one end of the circular base 23 is provided with a through circular hole 25, the plurality of centering bosses 24 are circumferentially and uniformly distributed, an inwardly concave arc-shaped groove 26 is respectively formed between two adjacent centering bosses 24 on the circular base 23, and both sides of the centering bosses 24 are in arc transition with the arc-shaped groove 26;
the number of the centering bosses 24 is consistent with that of the bolt holes 8, and the arc-shaped groove 26 is positioned right in front of the bolt holes 8;
during the concrete implementation, to heart main part 21 formula structure as an organic whole, to heart main part 21 accessible casting die utensil rapid prototyping, make the simple swift more of manufacturing to heart main part 21, will fix on the inner wall of main steel pipe 2 through the welded mode to the outer wall of heart main part 21, the figure of arc wall 26 is unanimous with the number of bolt hole 8 on the ring flange a4, arc wall 26 is located the dead ahead of bolt hole 8 or under, namely the line of arc wall 26 centre of a circle to the centre of a circle of steel pipe main part 1 and the line of bolt hole 8 centre of a circle to the centre of a circle of steel pipe main part 1 on the ring flange a4 collineatly or parallel in the vertical plane, it is similar with the petal form to heart boss 24, both sides all set up to the cambered surface of evagination, and with arc wall 26 circular arc transition.
As shown in fig. 3 and 4, the centering auxiliary member 22 includes a circular ring seat 27 and a plurality of centering columns 28, the inner wall of the circular ring seat 27 is fixed with the plurality of centering columns 28, the plurality of centering columns 28 are uniformly distributed in a circumferential manner, the bottom of the centering columns 28 is provided with a spherical surface, each bolt hole 8 corresponds to one centering column 28, and the center of the centering column 28, the center of the bolt hole 8 on the flange b5 and the center of the steel supporting pipe 3 are on the same straight line;
when the bottom of the centering post 28 is matched with the arc-shaped groove 26, the flange a4 is contacted with the flange b 5;
when the branch steel pipe 3 is inserted into the main steel pipe 2, the centering boss 28 is in contact with the centering boss 24, when the branch steel pipe 3 continuously falls, under the self weight of the branch steel pipe 3, because the centering boss 24 is an outward arc surface, the centering boss 24 cannot stabilize the centering boss 28, the centering boss 28 slides towards the arc-shaped groove 26 along the arc surface, so as to drive the branch steel pipe 3 to rotate in the main steel pipe 2, when the centering boss 28 slides into the bottom of the arc-shaped groove 26, the branch steel pipe 3 descends to the lowest point, the arc-shaped groove 26 limits the branch steel pipe 3, so that the branch steel pipe 3 stops rotating, at the moment, the flange a4 is in contact with the flange b5, meanwhile, bolt holes 8 on the flange a4 correspond to bolt holes 8 on the flange b5, so that the self-adaptive rotation of the branch steel pipe 3 when inserted into the main steel pipe 2 is realized, the effect of the flange centering is realized, and the difficulty of the sectional tower is greatly reduced, the requirement on the level of hoisting operators is reduced, the dead time of the branch steel pipe 3 is reduced, the installation of the branch steel pipe is faster and more accurate, and the safety risk is reduced.
As shown in fig. 7 and 8, the water collecting member 7 is a cone, the water collecting chamber 9 is formed in the water collecting member 7, one end of the water collecting member 7 with a large diameter is arranged close to the flange a4 and attached to the inner wall of the main steel pipe 2, a water outlet 10 is formed in one side of the main steel pipe 2, a water outlet pipe 11 is arranged on the water collecting member 7, one end of the water outlet pipe 11 is communicated with the water collecting chamber 9, and the other end of the water outlet pipe passes through the water outlet 10 and is communicated with the outside.
The rainwater and the condensate water that permeate into steel pipe main body 1 inside fall into the chamber 9 that catchments on catchmenting 7, outside discharging the rainwater to steel pipe main body 1 through drain pipe 11, can avoid inside long-term ponding at the bottom of main steel pipe 2 from this to lead to the corrosion damage, influence the design life and the structural strength of steel pipe main body 1, eliminate the fracture of steel pipe pole root and the safe risk that appears toppling. It is worth noting that the outer wall of the drain pipe 11 and the inner wall of the water outlet 10 are sealed by welding, so that rainwater is prevented from directly entering the bottom of the main steel pipe 2 through a gap between the drain pipe 11 and the water outlet 10, and the bottom of the main steel pipe 2 is prevented from being corroded and damaged.
Further, the circular arcs on both sides of centering boss 24 intersect at the top of centering boss 24. The top of the centering boss 24 can not bear the centering column 28 and can only slide down into the arc-shaped groove 26 along the arc surface, so that the top of the centering boss 24 is prevented from forming a plane for bearing the centering column 28.
Further, the centering column 28 is composed of a cylindrical section 29, a frustum section 30 and a spherical section 31 from top to bottom in sequence, the cylindrical section 29 is embedded on the inner wall of the circular ring seat 27, and the centering column 28 is integrally manufactured.
Further, a spherical groove 32 is formed in the center of the arc-shaped groove 26, and the spherical section 31 is matched with the spherical groove 32.
Because 3 eminences of a steel pipe have great wind-load, when wind-force was used in a steel pipe 3, can make the stem 28 rock from top to bottom in arc wall 26, thereby the influence carries out the bolt fastening to the ring flange, set up the ball groove 32 after, ball section 31 on the stem 28 will slide to the ball groove 32 in, thereby will stabilize the stem 28, avoid a steel pipe 3 to rock, make the fixed simple more swift of ring flange, avoid receiving the influence of wind-load. The spherical segment 31 is adapted to fit into the spherical groove 32, and the flange a4 contacts the flange b 5.
Further, the ventilation part 6 comprises a ventilation steel pipe 15 and a waterproof cover 16, the ventilation steel pipe 15 is of a hollow structure, the waterproof cover 16 is fixed at one end of the ventilation steel pipe 15, the other end of the ventilation steel pipe is fixed with the branch steel pipe 3, a plurality of ventilation openings 17 extending along the longitudinal direction are formed in the pipe wall of the ventilation steel pipe 15, and the ventilation openings 17 are arranged close to the waterproof cover 16.
Further, the waterproof cover 16 is an umbrella-shaped structure, the diameter of the large-diameter end of the waterproof cover 16 is larger than that of the flange a4, and the large-diameter end of the waterproof cover 16 extends to the bottom of the vent 17.
Further, a transition inclined plane 18 is arranged between the inner wall and the outer wall of the large-diameter end of the water collecting piece 7, and the transition inclined plane 18 is arranged in a downward inclined mode.
Furthermore, a plurality of cross arms 19 are arranged on the branch steel pipes 3. For mounting power lines.
When being in rainwater weather for a long time or temperature is lower, can adhere to rainwater or liquefaction on the inner wall of steel pipe main part 1 and have the raindrop, and the ventilation capacity of current steel pipe main part 1 is poor again, can lead to the fact the corrosion to the inner wall of steel pipe main part 1 for a long time, seriously influences the intensity of steel pipe main part 1, causes the fracture of steel pipe main part 1, causes the incident and causes economic loss. While the ventilation element 6 of the present application effectively avoids this. Because the setting of ventilation piece 6 is at the top of a steel pipe 3, a steel pipe 3 mounting height is generally higher, consequently, the wind-force at 3 tops of a steel pipe is great, communicate with each other through vent 17 and steel pipe main part 1's inside, make steel pipe main part 1 have better ventilation effect, the quick drop of water on the inner wall to steel pipe main part 1 air-dries, avoid the inner wall of steel pipe main part 1 to receive the corrosion, the life of steel pipe main part 1 has been increased, simultaneously the buckler 16 shields including vent 17, effectually prevented that the rainwater from entering into in the steel pipe main part 1 from vent 17, the diameter of buckler 16 is greater than the diameter of ring flange a4, have the effect that prevents that ring flange a4 and ring flange b5 from receiving the rainwater erosion.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The large-scale steel pipe tower is characterized by comprising a steel pipe main body (1) and a flange centering assembly, wherein the flange centering assembly is arranged in the steel pipe main body (1);
the steel pipe main body (1) comprises a main steel pipe (2) and a branch steel pipe (3), a water collecting part (7) is arranged on the inner wall of the main steel pipe (2), a flange plate a (4) is fixed at one end of the main steel pipe (2), a flange base is fixed at the other end of the main steel pipe, a flange plate b (5) is fixed at one end of the branch steel pipe (3), a ventilating part (6) is fixed at the other end of the branch steel pipe, a plurality of bolt holes (8) are formed in the flange plate a (4), the bolt holes (8) are uniformly distributed in the circumferential direction, and the flange plate b (5) and the flange plate a (4) are identical in structure;
the flange centering assembly comprises a centering main part (21) and a centering auxiliary part (22), the centering main part (21) is fixed on the inner wall of the main steel pipe (2), and the centering auxiliary part (22) is fixed on the inner wall of the branch steel pipe (3);
the centering main part (21) comprises a circular base (23) and a plurality of centering bosses (24) fixed at the end part of the circular base (23), one end of the circular base (23) is provided with a through circular hole (25), the centering bosses (24) are uniformly distributed in a circumferential manner, concave arc-shaped grooves (26) are formed between every two adjacent centering bosses (24) on the circular base (23), and two sides of each centering boss (24) are in arc transition with the arc-shaped grooves (26);
the number of the centering bosses (24) is consistent with that of the bolt holes (8), and the arc-shaped groove (26) is positioned right in front of the bolt holes (8);
the centering auxiliary member (22) comprises a circular ring seat (27) and a plurality of centering columns (28), the centering columns (28) are fixed on the inner wall of the circular ring seat (27), the centering columns (28) are circumferentially and uniformly distributed, the bottom of each centering column (28) is provided with a spherical surface, a bolt hole (8) corresponds to each centering column (28), and the circle center of each centering column (28), the circle center of each bolt hole (8) in the flange b (5) and the circle center of each steel supporting pipe (3) are on the same straight line;
when the bottoms of the centering columns (28) are matched with the arc-shaped grooves (26), the flange plate a (4) is contacted with the flange plate b (5);
the water collecting piece (7) is a cone, a water collecting cavity (9) is formed in the water collecting piece (7), one end of the water collecting piece (7) with a large diameter is close to the flange plate a (4) and is attached to the inner wall of the main steel pipe (2), a water outlet (10) is formed in one side of the main steel pipe (2), a water drainage pipe (11) is arranged on the water collecting piece (7), one end of the water drainage pipe (11) is communicated with the water collecting cavity (9), and the other end of the water drainage pipe penetrates through the water outlet (10) to be communicated with the outside;
the centering column (28) sequentially comprises a cylindrical section (29), a frustum section (30) and a round ball section (31) from top to bottom, the cylindrical section (29) is embedded on the inner wall of the circular ring seat (27), and the centering column (28) is integrally manufactured;
a round ball groove (32) is formed in the center of the arc-shaped groove (26), and the round ball section (31) is matched with the round ball groove (32).
2. A large steel tube tower according to claim 1, wherein the circular arcs on both sides of the centering boss (24) intersect at the top of the centering boss (24).
3. The large-scale steel tube tower of claim 1, wherein the ventilation member (6) comprises a ventilation steel tube (15) and a waterproof cover (16), the ventilation steel tube (15) is of a hollow structure, the waterproof cover (16) is fixed at one end of the ventilation steel tube (15), the other end of the ventilation steel tube is fixed with the branch steel tube (3), a plurality of ventilation openings (17) extending along the longitudinal direction are formed in the tube wall of the ventilation steel tube (15), and the ventilation openings (17) are arranged close to the waterproof cover (16).
4. A large steel tube tower according to claim 3, characterized in that the waterproof cover (16) is an umbrella structure, the diameter of the large-diameter end of the waterproof cover (16) is larger than that of the flange a (4), and the large-diameter end of the waterproof cover (16) extends to the bottom of the ventilation opening (17).
5. A large steel tube tower according to claim 1, characterized in that a transition slope (18) is arranged between the inner wall and the outer wall of the large-diameter end of the water collecting member (7), and the transition slope (18) is arranged in a downward inclination manner.
6. A large steel tube tower according to claim 1, characterised in that said branch steel tubes (3) are provided with a number of cross arms (19).
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| CN202010592499.5A CN111706144B (en) | 2020-06-24 | 2020-06-24 | Large-scale steel pipe tower |
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| CN202010592499.5A CN111706144B (en) | 2020-06-24 | 2020-06-24 | Large-scale steel pipe tower |
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| CN111706144B true CN111706144B (en) | 2021-10-22 |
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| CN201844139U (en) * | 2010-08-12 | 2011-05-25 | 湖北省电力勘测设计院 | Break-resistant wave-shaped flange |
| CN204126353U (en) * | 2014-09-30 | 2015-01-28 | 莱芜鲁能开源铁塔有限公司 | A kind of steel tube tower being convenient to install |
| CN204627097U (en) * | 2015-03-04 | 2015-09-09 | 潍坊昌安金具铁塔有限公司 | The pipe fitting of steel pipe tower |
| CN206346182U (en) * | 2016-11-29 | 2017-07-21 | 中国铁塔股份有限公司长春市分公司 | A kind of double helix self-rotary steel-pipe pile |
| CN107191055A (en) * | 2017-07-13 | 2017-09-22 | 国家电网公司 | A kind of electric pole |
| CN207469875U (en) * | 2017-10-26 | 2018-06-08 | 广州电力设计院 | Steel pipe pole rainwater, condensation water collection row's structure and high-voltage power transmission tower |
| CN108149844A (en) * | 2018-01-15 | 2018-06-12 | 福州大学 | A kind of self-positioning assembly concrete-filled steel tube intercolumniation node and its construction method |
| CN210194901U (en) * | 2019-06-20 | 2020-03-27 | 常州工程职业技术学院 | Rotary buckle type connecting joint structure for circular steel pipe column |
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