Emergency cross arm of power transmission line

Abstract

The invention provides an emergency cross arm of a power transmission line, and relates to the technical field of power transmission, the emergency cross arm comprises a plurality of connecting discs, reinforcing plates, fastening holes, insulating rods, lifting rings, wire fittings and center-penetrating bolts, the connecting discs are provided with the fastening holes and six groups of inner slots arranged in an annular array, and the insulating rods are arranged in the inner slots. An insulating rod is arranged between every two adjacent connecting discs, center penetrating holes are formed in the centers of the connecting discs, reinforcing plates are arranged on the outer sides of the connecting discs, wire fittings are arranged at the bottoms of the reinforcing plates, lifting rings are arranged at the tops of the reinforcing plates, center penetrating bolts are arranged on the reinforcing plates, and the connecting discs, the insulating rods and the reinforcing plates are fixedly connected together through the center penetrating bolts in cooperation with nuts; according to the invention, a proper number of connecting discs and insulating rods are combined and mounted, so that a tower head structure suitable for requirements can be reasonably assembled according to different voltage grades and different insulating properties, and the purpose of quickly recovering power transmission in a short time is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission, and in particular to an emergency cross arm of a power transmission line. Background Art

[0002] Transmission line towers are tower-shaped buildings used for power transmission. Their structural characteristics are that all types of towers are space truss structures, and the rods are mainly composed of single equilateral angle steel or combined angle steel. The materials generally use Q235 (A3F) and Q345 (16Mn). The rods are connected by rough bolts, which are connected by shear force. The whole tower is composed of angle steel, connecting steel plates and bolts. Individual parts such as tower feet are welded from several steel plates into a combination, so hot-dip galvanizing anti-corrosion, transportation and construction are extremely convenient.

[0003] Extreme weather such as snowstorms and strong winds can cause disasters to our power lines, and tower collapse and line break accidents are prone to occur. Due to environmental and weather reasons, on-site emergency repair work is difficult to complete in a short time. The emergency repair tower is not suitable for special terrain and extreme weather operations, which brings inconvenience to residential users, has a negative impact on power companies, brings panic to society, and brings economic losses to the country. In order to restore power supply as soon as possible, it is necessary to build an emergency crossarm to restore power supply. The emergency crossarm in the prior art has a complex structure and cumbersome assembly, which is not conducive to rapid structural adjustment according to demand, resulting in poor flexibility in use. Therefore, the present invention proposes an emergency crossarm for a transmission line to address the shortcomings of the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide an emergency crossarm for a transmission line. By combining and installing a suitable number of connecting plates and insulating rods, it is possible to reasonably assemble a tower head structure suitable for the needs according to different voltage levels and different insulation properties, thereby achieving the purpose of rapid restoration of power transmission in a short period of time.

[0005] To achieve the above object, the present invention provides the following technical solutions: An emergency cross arm of a power transmission line comprises a connection plate, a reinforcement plate, a fastening hole, an insulating rod, a lifting ring, a conductor hardware and a through bolt, wherein a plurality of the connection plates are provided, and the plurality of the connection plates are arranged in a triangular array, the connection plate is provided with a fastening hole, the connection plate is provided with an inner slot, and the inner slots are provided in a ring array and have six groups, an insulating rod is provided between adjacent connection plates, and both ends of the insulating rod are inserted into the inner slots at corresponding positions, a through hole is provided at the center of the connection plate, a reinforcement plate is provided on the outside of the connection plate, a conductor hardware is provided at the bottom of the reinforcement plate, a lifting ring is provided on the top of the reinforcement plate, and a through bolt is provided on the reinforcement plate, and the through bolt is cooperated with a nut to fix the connection plate, the insulating rod and the reinforcement plate together.

[0006] A further improvement is that: the fastening holes are provided with at least three groups, fastening bolts are provided in the fastening holes, and the connecting plate is mounted on the back plate of the connecting plate through the fastening bolts.

[0007] A further improvement is that the insulating rod comprises a rod body, a circular plate and a limiting plate, circular plates are provided at both ends of the rod body, limiting plates are symmetrically provided on the outer wall of the rod body, and through holes are provided on the circular plate.

[0008] A further improvement is that one end of the limit plate is a slope structure, the slope of the slope structure at one end of the limit plate is adapted to the inner wall of the inner slot, and after the limit plate is limited in the inner slot, the through hole on the circular plate is concentric with the through hole.

[0009] A further improvement is that grooves are provided on both sides of the circular plate, guide wheels are rotatably provided in the grooves, a guide groove is provided at the opening at the lower end of the inner slot, and the guide wheel contacts and rolls on the inner wall of the guide groove.

[0010] A further improvement is that: a ring groove is provided on one side wall of the circular plate, an insert ring is provided on the other side wall of the circular plate, and adjacent circular plates are plug-connected with the ring groove through the insert ring.

[0011] The beneficial effects of the present invention are as follows: the emergency cross arm structure of the present invention is composed of a connecting plate, a reinforcement plate, a fastening hole, an insulating rod, a lifting ring, a conductor hardware and a through bolt, and has the advantages of simple structure and fast assembly. It can be quickly assembled and put into use in an emergency situation, and the structure is highly adjustable. By combining and installing a suitable number of connecting plates and insulating rods, it can be reasonably assembled into a tower head structure suitable for the needs according to different voltage levels and different insulation properties, thereby achieving the purpose of quickly restoring power supply in a short period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main view of the structure of the present invention; Figure 2 This is a schematic diagram of the front view of the insulating rod of the present invention when it is installed in the initial state; Figure 3 This is a schematic diagram of the front view of the insulating rod structure in the final state of installation of the present invention; Figure 4 This is a schematic diagram of the front view of the insulating rod structure of the present invention; Figure 5 It is a schematic diagram of the back front view of the insulating rod structure of the present invention.

[0013] Among them: 1. Connecting plate; 2. Reinforcement plate; 3. Fastening hole; 4. Insulating rod; 401. Rod body; 402. Round plate; 403. Limiting plate; 404. Through hole; 405. Guide wheel; 5. Lifting ring; 6. Wire fittings; 7. Through bolt; 8. Inner slot; 9. Through hole; 10. Guide groove; 11. Ring groove; 12. Insert ring. Implementation

[0014] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0015] according to Figure 1-5 As shown, this embodiment proposes an emergency cross arm of a transmission line, including a connection plate 1, a reinforcement plate 2, a fastening hole 3, an insulating rod 4, a lifting ring 5, a conductor fitting 6 and a through bolt 7. The connection plate 1 and the reinforcement plate 2 are supported by aluminum alloy materials. The through bolt 7 has a diameter of not less than 12 mm, and one side must have a flat washer and a spring washer. The insulation performance of the insulating rod 4 is not less than the State Grid "Safety Regulations" and the mechanical strength is not less than the national industry standard. The connection plate 1 is provided with a plurality of connection plates 1, and the plurality of connection plates 1 are arranged in a triangular array. The connection plate 1 is provided with a fastening hole 3 The connection disk 1 is provided with an inner slot 8, and the inner slot 8 is arranged in six groups in a circular array. An insulating rod 4 is provided between adjacent connection disks 1, and both ends of the insulating rod 4 are inserted into the inner slot 8 at corresponding positions. A through hole 9 is provided at the center of the connection disk 1, and a reinforcement plate 2 is provided on the outside of the connection disk 1. A wire fitting 6 is provided at the bottom of the reinforcement plate 2, and a lifting ring 5 is provided on the top of the reinforcement plate 2. A through bolt 7 is provided on the reinforcement plate 2, and the through bolt 7 is used to fix the connection disk 1, the insulating rod 4 and the reinforcement plate 2 together through a nut.

[0016] When the emergency cross arm of the present invention is assembled and used, according to the voltage level requirements, a suitable number of connection plates 1 and insulating rods 4 are selected to form a cross arm structure. When assembling, the two ends of the insulating rods 4 are inserted into the inner slots 8 set on the positions of the two adjacent connection plates 1, and then the connection plates 1, the insulating rods 4 and the reinforcing plates 2 are fixedly connected by through-bolts 7 passing through through-holes 9 and then equipped with nuts, and then the lifting rings 5 ​​and the conductor hardware 6 are installed on the reinforcing plates 2 on the top connection plates 1 of the cross arm structure. When the cross arm structure is used, the conductor hardware 6 is used to fix the conductor, and the lifting ring 5 is hooked by the lifting equipment, and an insulating pull wire is provided. The entire cross arm structure is lifted and used to achieve the purpose of short-term rapid restoration of power transmission.

[0017] At least three groups of the fastening holes 3 are provided, and fastening bolts are arranged in the fastening holes 3. The fastening bolts are galvanized bolts with six inner edges and a diameter of 8 mm. The connecting plate 1 is installed with the back plate of the connecting plate 1 through the fastening bolts.

[0018] The insulating rod 4 includes a rod body 401, a circular plate 402 and a limiting plate 403. The circular plates 402 are provided at both ends of the rod body 401. The limiting plates 403 are symmetrically provided on the outer wall of the rod body 401. The circular plate 402 is provided with a through hole 404. One end of the limiting plate 403 is a slope structure, and the slope of the slope structure at one end of the limiting plate 403 is adapted to the inner wall of the inner slot 8. After the limiting plate 403 is limited in the inner slot 8, the through hole 404 on the circular plate 402 is concentric with the through hole 9. Grooves are provided on both sides of the circular plate 402, and a guide wheel 405 is rotatably provided in the groove. A guide groove 10 is provided at the opening at the lower end of the inner slot 8. The guide wheel 405 contacts the inner wall of the guide groove 10 and rolls on the inner wall of the guide groove 10. By configuring the insulating rod 4 to consist of a rod body 401, a circular plate 402 and a limit plate 403, when installing the insulating rod 4, the circular plate 402 is inserted into the inner slot 8, and then the guide wheel 405 contacts the guide groove 10 and rolls on the guide groove 10. When the through hole 404 on the circular plate 402 is concentric with the through hole 9, the limit plate 403 is limited by the side wall of the inner slot 8, thereby realizing the centered installation of the insulating rod 4.

[0019] A ring groove 11 is provided on one side wall of the circular plate 402, and an insert ring 12 is provided on the other side wall of the circular plate 402. Adjacent circular plates 402 are connected by inserting the insert ring 12 into the ring groove 11. Because a plurality of insulating rods 4 need to be installed in a connection plate 1, the insert ring 12 is provided to cooperate with the ring groove 11 to ensure that the plurality of insulating rods 4 are connected to each other, so that the connection plate 1, the insulating rod 4 and the reinforcing plate 2 can be quickly fixed by the through bolt 7 later.

[0020] The emergency cross arm structure of the present invention is composed of a connecting plate 1, a reinforcement plate 2, a fastening hole 3, an insulating rod 4, a lifting ring 5, a conductor hardware 6 and a through bolt 7. It has the advantages of simple structure and fast assembly. It can be quickly assembled and put into use in an emergency situation, and the structure is highly adjustable. By combining and installing a suitable number of connecting plates 1 and insulating rods 4, it can be reasonably assembled into a cross arm structure suitable for the needs according to different voltage levels and different insulation properties, thereby achieving the purpose of quickly restoring power supply in a short period of time.

[0021] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An emergency cross arm for a power transmission line, characterized in that: The invention comprises a connection plate (1), a reinforcement plate (2), a fastening hole (3), an insulating rod (4), a lifting ring (5), a conductor fitting (6) and a through bolt (7), wherein the connection plate (1) is provided with a plurality of fastening holes (3), the connection plate (1) is provided with an inner slot (8), and the inner slot (8) is provided with six groups in a ring array, and an insulating rod (4) is provided between adjacent connection plates (1). The two ends of the rod (4) are inserted into the inner slots (8) at corresponding positions, the center of the connecting plate (1) is provided with a through hole (9), the outer side of the connecting plate (1) is provided with a reinforcing plate (2), the bottom of the reinforcing plate (2) is provided with a conductor fitting (6), the top of the reinforcing plate (2) is provided with a lifting ring (5), and the reinforcing plate (2) is provided with a through bolt (7), and the through bolt (7) is matched with a nut to fix the connecting plate (1), the insulating rod (4) and the reinforcing plate (2) together.

2. The emergency cross arm of a power transmission line according to claim 1, characterized in that: At least three groups of the fastening holes (3) are provided, fastening bolts are provided in the fastening holes (3), and the connecting plate (1) is mounted on the back plate of the connecting plate (1) via the fastening bolts.

3. The emergency cross arm of a power transmission line according to claim 1, characterized in that: The insulating rod (4) comprises a rod body (401), a circular plate (402) and a limiting plate (403); the circular plates (402) are provided at both ends of the rod body (401); the limiting plates (403) are symmetrically provided on the outer wall of the rod body (401); and the circular plate (402) is provided with a through hole (404).

4. The emergency cross arm of a power transmission line according to claim 3, characterized in that: One end of the limiting plate (403) is an inclined surface structure, the slope of the inclined surface structure at one end of the limiting plate (403) is adapted to the inner wall of the inner slot (8), and after the limiting plate (403) is limited in position in the inner slot (8), the through hole (404) on the circular plate (402) is concentric with the through hole (9).

5. The emergency cross arm of a power transmission line according to claim 4, characterized in that: Grooves are provided on both sides of the circular plate (402), guide wheels (405) are rotatably provided in the grooves, a guide groove (10) is provided at the opening at the lower end of the inner slot (8), and the guide wheel (405) contacts the inner wall of the guide groove (10) and rolls on the inner wall of the guide groove (10).

6. The emergency cross arm of a power transmission line according to claim 3, characterized in that: A ring groove (11) is provided on one side wall of the circular plate (402), and an insert ring (12) is provided on the other side wall of the circular plate (402). Adjacent circular plates (402) are plugged into and connected with the ring groove (11) via the insert ring (12).

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