CN204326677U - Novel power transmission power line steel tuble pole - Google Patents

Abstract

The utility model discloses a novel steel pipe rod for power transmission lines, which comprises a main rod of the steel pipe rod, at least one perforation group is arranged on the outer surface of the main rod of the steel pipe rod, and one perforation group is included on the outer surface of the main rod of the steel pipe rod. The first perforation and the second perforation are oppositely arranged; and a cross-arm connecting plate corresponding to the perforation group one-to-one, one end of the cross-arm connecting plate penetrates through the first through-hole into the main rod of the steel pipe rod and then from the The second perforation pierces through the main rod of the steel pipe rod, and the cross-arm connecting plate is welded and connected to the main rod of the steel pipe rod; adopting such a structure greatly reduces the structural complexity, and because the cross-arm connecting plate runs through the main rod of the steel pipe rod The rod is not directly welded to the main rod of the steel pipe rod. This structure can offset the stress concentration at the root of part of the cross-arm and avoid the situation where the force is concentrated on the main rod of the steel pipe rod and cause local buckling. The structure is simple and the stress distribution is reasonable. Can effectively improve installation efficiency and reduce costs.

Description

New steel pipe poles for transmission lines

technical field

The utility model relates to a steel pipe pole of a power transmission line.

Background technique

There are two commonly used connection methods for transmission steel pipe pole cross arms: connecting plate stiffening and flange connection. Two steel plates and 4 to 8 stiffening plates are used to weld the connecting plate to the main rod. The flange connection adopts matching flanges and several stiffening plates welded to the main pipe. Both require a large number of stiffening plates for design, lofting, A series of processes such as blanking, assembly, and welding bring a large workload and low efficiency. Moreover, stress concentration is likely to occur at the compressed part of the root of the cross-arm when the load acts, and local compression can easily lead to local buckling of the main rod, so the cross-arm should not be directly connected to the main rod.

Utility model content

The technical problem to be solved by the utility model is to provide a new type of steel pipe pole for transmission lines with high safety, simple structure, reasonable stress distribution, convenient installation and effective improvement of installation efficiency.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is: a new type of steel pipe rod for power transmission lines, including a steel pipe rod main rod, at least one perforation group is provided on the outer surface of the steel pipe rod main rod, and one perforation group is included in the steel pipe rod. The first perforation and the second perforation set opposite to the outer surface of the main rod of the steel pipe rod; it also includes a cross-arm connecting plate corresponding to the perforation group one-to-one, and one end of the cross-arm connecting plate penetrates through the first perforation The main rod of the steel pipe rod passes through the main rod of the steel pipe rod through the second hole, and the connecting plate of the cross arm is welded to the main rod of the steel pipe rod.

As a preferred technical solution, the first through-hole and the second through-hole are strip-shaped holes, and the first through-hole and the second through-hole are arranged longitudinally on the outer surface of the main rod of the steel pipe rod.

As a preferred technical solution, the outer surface of the main rod of the steel pipe rod is provided with two perforation groups.

Due to the adoption of the above technical solution, one end of the cross-arm connecting plate penetrates into the main rod of the steel pipe rod through the first perforation and then passes out of the main rod of the steel pipe rod through the second perforation, and the connecting plate of the cross-arm is welded Connect the main rod on the steel pipe rod. The first through-hole and the second through-hole are strip-shaped holes, and the first through-hole and the second through-hole are arranged longitudinally on the outer surface of the main rod of the steel pipe rod. The use of such a structure greatly reduces the structural complexity, and because the cross-arm connecting plate runs through the main rod of the steel pipe rod instead of being directly welded to the main rod of the steel pipe rod, this structure can offset the stress concentration at the root of some cross-arms and avoid the concentration of force on the In the case of local buckling caused by the main rod of the steel pipe rod, the structure is simple, the stress distribution is reasonable, and the installation efficiency can be effectively improved and the cost can be reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is A-A to sectional view among Fig. 1;

Fig. 3 is a schematic structural view of the main rod of the steel pipe rod in the embodiment of the present invention;

The C-C sectional view in view 3 of Fig. 4 .

Detailed ways

As shown in Figures 1 and 2, the steel pipe pole of the new power transmission line includes a steel pipe pole main pole 1, and the outer surface of the steel pipe pole main pole 1 is provided with two perforation groups, and the steel pipe pole main pole may also be provided with One perforation group or two or more other numbers of perforation groups, one perforation group includes a first perforation 2 and a second perforation 3 opposite to the outer surface of the main rod of the steel pipe rod; The cross-arm connecting plate 4 corresponding to the perforation group one-to-one, the two ends of the cross-arm connecting plate 4 are provided with the mounting holes 5 for installing the cross-arm, and one end of the cross-arm connecting plate 4 penetrates the steel pipe through the first perforation 2 The rod main rod then passes through the steel pipe rod main rod 1 through the second through hole 3 , and the cross-arm connecting plate 4 is welded and connected to the steel pipe rod main rod 1 .

As shown in Figure 3 and Figure 4, the first perforation 2 and the second perforation 3 are strip-shaped holes, and the first perforation 2 and the second perforation 3 are outside the main rod 1 of the steel pipe rod. Surface portrait setting.

The outer surface of the main rod 1 of the steel pipe rod is provided with two perforation groups.

One end of the cross-arm connecting plate 4 penetrates the steel pipe rod main rod 1 from the first perforation 2 and then passes through the steel pipe rod main rod 1 through the second perforation 3, and the cross-arm connecting plate 4 is welded and connected Main rod 1 on said steel pipe rod. The first perforation 2 and the second perforation 3 are strip-shaped holes, and the first perforation 2 and the second perforation 3 are longitudinally arranged on the outer surface of the main rod 1 of the steel pipe rod. Adopting such a structure greatly reduces the structural complexity, and because the cross-arm connecting plate 4 runs through the main rod 1 of the steel pipe rod instead of being directly welded to the main rod 1 of the steel pipe rod, this structure can offset the stress concentration at the root of some cross-arms and avoid being damaged. The local buckling is caused by the concentrated force on the main rod 1 of the steel pipe rod, the structure is simple, the stress distribution is reasonable, and the installation efficiency can be effectively improved and the cost can be reduced.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. Novel power transmission power line steel tuble pole, comprises steel pipe pole mobile jib, it is characterized in that: the external surface of described steel pipe pole mobile jib is provided with at least one perforation group, and described perforation group is included in the first perforation and second that described steel pipe pole mobile jib external surface is oppositely arranged and bores a hole; Also comprise and described perforation group cross-arm connecting plate one to one, one end of described cross-arm connecting plate penetrates steel pipe pole mobile jib from described first and then passes described steel pipe pole mobile jib from described second, and described cross-arm connecting plate is welded to connect at described steel pipe pole mobile jib.

2. Novel power transmission power line steel tuble pole as claimed in claim 1, is characterized in that: described first perforation and described second perforation are bar hole, and described first perforation and described second perforation are longitudinally arranged at the external surface of described steel pipe pole mobile jib.

3. Novel power transmission power line steel tuble pole as claimed in claim 1, is characterized in that: the external surface of described steel pipe pole mobile jib is provided with two described perforation groups.