Anti-contact overhead transmission line insulator string

Abstract

The utility model discloses an anti-contact overhead transmission line insulator string, which comprises an insulator, a connecting seat and a wire clamp, the two ends of the insulator are integrally cast with raised head ends, the upper end of the raised head end is fixedly connected with a ball head, the upper end of the ball head is integrally fixed with the connecting seat, the circle center of the upper end of the connecting seat is fixed with a positioning pin, and the wire clamp is fixedly connected with the connecting seat. A pin hole is formed in the circle center of the positioning pin, a wire clamp is welded to the connecting base along the rear end of the positioning pin, the upper end of the wire clamp is integrally bent to form a back plate, and the back plate is bent backwards by 0-45 degrees. When the anti-contact overhead transmission line insulator string is used, the whole insulator is a pulling part of a wire, the whole insulator adopts a rod type design, and compared with a conventional insulator string connected in a nested manner, the insulator string can well ensure that the insulator strings can be well arranged together; the possibility that the insulator strings are mutually inserted and contacted is reduced, and the safety of power transmission is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator strings, in particular to an anti-contact overhead transmission line insulator string. Background Art

[0002] An insulator string refers to a component that combines two or more insulator elements to flexibly suspend a conductor. An insulator string is a protective device with fixing and operation requirements, used to suspend the conductor and insulate the conductor from the tower and the ground. A good insulator string can meet the basic needs of transmission line construction, while also reducing the difficulty of installation for electricians, making it easier for electricians to use and operate.

[0003] The present application relates to the field of insulator technology, and in particular to a conductor tension insulator string (CN219696162U), which includes an insulator string body, an adjustment plate arranged at the end of the insulator string body, and a connection assembly for connecting the conductor; the insulator string body and the facing ends of the connection assembly are both provided with connection bolts perpendicular to the adjustment plate; one end of the adjustment plate is formed with a first connection hole, and the edge where the other end of the adjustment plate is located is formed with a plurality of second connection holes, and the distances between different second connection holes and the first connection holes are gradually increased, and the distribution paths of the plurality of second connection holes and the first connection holes are not collinear; the connection bolt on the insulator string body is passed through and fixedly connected to the first connection hole or the second connection hole; the connection bolt on the connection assembly is passed through and fixedly connected to the second connection hole or the first connection hole. The present application can adjust the installation length while reducing the impact on the installation stability. However, when using, fasteners are generally used to connect the insulator string to the crossarm of the pole. The connection between the fasteners and the crossarm of the pole may be damaged due to long-term operation. Failure to repair it in time may result in the insulator string being unable to effectively suspend the conductor flexibly, causing certain safety hazards and bringing certain troubles to maintenance personnel.

[0004] To this end, we propose a contact-proof insulator string for overhead transmission lines. Utility Model Content

[0005] The utility model aims to provide a contact-proof insulator string for overhead transmission lines to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-contact overhead transmission line insulator string, comprising an insulator, a connecting seat and a wire clamp, wherein both ends of the insulator are integrally cast with a convex head end, the upper end of the convex head end is fixedly connected with a ball head, and the upper end of the ball head is integrally fixed with a connecting seat, a locating pin is fixed at the center of the upper end of the connecting seat, and a pin hole is opened at the center of the locating pin, a wire clamp is welded along the rear end of the locating pin of the connecting seat, a back plate is integrally bent at the upper end of the wire clamp, and the back plate is bent backward at 0-45°, an upper clamp is stamped with an upper plate at the upper end of the back plate, and the upper clamp is distributed in an "I" shape.

[0007] Furthermore, a pin is fixed to the lower end of the convex head end at the lower end, and a connecting piece is fixed to the lower end of the pin.

[0008] Furthermore, the insulator is connected to the iron parts of the overhead transmission line through pins and connectors.

[0009] Furthermore, a reinforcing rib is stamped on the lower end of the wire clamp, and bending grooves are provided on both sides of the connection between the reinforcing rib and the wire clamp.

[0010] Furthermore, the wire clamp is fixedly connected to the connecting seat via a reinforcing rib.

[0011] Furthermore, the insulator is connected to the cross arm of the electric pole through a ball head and a positioning pin, and the wire clamp wraps around the cross arm.

[0012] Compared with the prior art, the beneficial effect of the utility model is that when the anti-contact overhead transmission line insulator string is in use, the entire insulator is a pulling component of the wire, and the overall rod design is adopted. Compared with the conventional nested insulator strings, it can well ensure that the insulator strings can be well arranged together, reduce the possibility of insulator strings interlacing and contacting each other, and ensure the safety of power transmission.

[0013] The entire wire clamp adopts a ring-wrapped installation structure design. Its upper clamp and wire clamp are both I-shaped and can be bent inward according to the needs of the user, so that the upper clamp and the wire clamp fit tightly on the crossarm of the pole. At the same time, the bending groove and the back plate can be knocked to be bent into a bundle shape, which can meet the appropriate adjustment according to the different crossarms of the pole. The wire clamp wraps the crossarm and cooperates with the positioning pin as much as possible to achieve the need to connect the insulator to the crossarm of the pole, meet the needs of basic installation and fixation, and adopt double fixed connection, which can play a certain preventive role and reduce the possibility of falling off somewhere, which directly leads to the detachment of the transmission line. At the same time, the wrapped wire clamp can also protect the connection of the crossarm, reduce corrosion damage at the connection of the crossarm, and increase the service life of the connection of the crossarm, which brings certain economic benefits to the enterprise and is convenient for users.

[0014] The pin and connector serve as connecting parts between the insulator and the iron parts of the overhead transmission line. The connector adopts a ring design and can be connected to the iron parts of various transmission lines, reducing the difficulty of connecting and installing the insulator and the overhead transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the external structure of the utility model;

[0017] Figure 3 It is a partial enlarged structural schematic diagram of the wire clamp of the utility model.

[0018] In the figure: 1. insulator; 11. convex end; 2. ball head; 3. connecting seat; 4. positioning pin; 5. wire clamp; 51. upper clamping plate; 52. reinforcing rib; 53. bending groove; 54. back plate; 6. pin; 7. connecting piece. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: an anti-contact overhead transmission line insulator string, comprising an insulator 1, a connecting seat 3 and a wire clamp 5, the two ends of the insulator 1 are integrally cast with a convex head end 11, the upper end of the upper convex head end 11 is fixedly connected with a ball head 2, and the upper end of the ball head 2 is integrally fixed with a connecting seat 3, a positioning pin 4 is fixed at the center of the upper end of the connecting seat 3, and a pin hole is opened at the center of the positioning pin 4, the connecting seat 3 is welded with a wire clamp 5 along the rear end of the positioning pin 4, the upper end of the wire clamp 5 is integrally bent with a back plate 54, and the back plate 54 is 0- It is bent backward at 45°, an upper clamping plate 51 is stamped on the upper end of the back plate 54, and the upper clamping plate 51 is arranged in an "I" shape, a pin 6 is fixed to the lower end of the lower protruding end 11, and a connector 7 is fixed to the lower end of the pin 6, and the insulator 1 is connected to the iron parts of the overhead transmission line through the pin 6 and the connector 7, and the pin 6 and the connector 7 serve as connecting parts between the insulator 1 and the iron parts of the overhead transmission line, and the connector 7 adopts a ring design, which can be connected to the iron parts of various transmission lines, thereby reducing the difficulty of connecting and installing the insulator 1 with the overhead transmission line.

[0021] A reinforcing rib 52 is stamped on the lower end of the wire clamp 5, and bending grooves 53 are provided on both sides of the connection between the reinforcing rib 52 and the wire clamp 5. The wire clamp 5 is fixedly connected to the connecting seat 3 through the reinforcing rib 52. The insulator 1 is connected to the cross arm of the pole through the ball head 2 and the positioning pin 4, and the wire clamp 5 wraps the cross arm. The entire wire clamp 5 adopts a ring-wrapped installation structure design. The upper clamp plate 51 and the wire clamp 5 are both I-shaped and can be bent inward according to the needs of the user, so that the upper clamp plate 51 and the wire clamp 5 are closely attached to the cross arm of the pole. At the same time, the bending groove 53 and the back plate 54 can be The bending bundle is formed by knocking, which satisfies the appropriate adjustment according to the different cross arms of the electric poles, and the wire clamp 5 wraps around the cross arm and cooperates with the positioning pin 4 as much as possible to achieve the requirement of connecting the insulator 1 with the cross arm of the electric pole, and meet the requirements of basic installation and fixation. At the same time, the entire insulator 1 is a pulling component for the wire, and the overall rod design is adopted. Compared with the conventional nested insulator strings, it can well ensure that the insulator strings and the insulator strings can be well arranged together, reduce the possibility of mutual interlacing and contact between the insulator strings, and ensure the safety of power transmission.

[0022] Working principle: For this type of contact-proof overhead transmission line insulator string, the ball head 2 and the pin 6 are first fixedly connected to the convex head end 11 of the insulator 1 by casting. At this time, the user connects it to the iron parts of the overhead transmission line through the connecting piece 7, and the connection is fastened together by bolts to check whether there is any possibility of looseness or abnormality. Then the user connects the locating pin 4 to the crossarm of the pole, and the upper clamp 51 and the wire clamp 5 fit tightly on the crossarm of the pole. Finally, the bending groove 53 and the back plate 54 are knocked to bend the bundle shape, so that the wire clamp 5 can wrap around the crossarm as much as possible, ensuring that the wire clamp 5 and the locating pin 4 are firmly connected to the crossarm.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contact-proof overhead transmission line insulator string, comprising an insulator (1), a connection seat (3) and a wire clamp (5), characterized in that: The two ends of the insulator (1) are integrally cast with convex ends (11), the upper end of the convex end (11) is fixedly connected with a ball head (2), and the upper end of the ball head (2) is integrally fixed with a connecting seat (3), a positioning pin (4) is fixed at the center of the upper end of the connecting seat (3), and a pin hole is opened at the center of the center of the positioning pin (4), a wire clamp (5) is welded along the rear end of the positioning pin (4) of the connecting seat (3), a back plate (54) is integrally bent at the upper end of the wire clamp (5), and the back plate (54) is bent backward at 0-45 degrees, an upper clamp (51) is stamped at the upper end of the back plate (54), and the upper clamp (51) is arranged in an "I" shape.

2. The contact-proof overhead transmission line insulator string according to claim 1, characterized in that: A pin (6) is fixed to the lower end of the protruding head end (11) at the lower end, and a connecting member (7) is fixed to the lower end of the pin (6).

3. The contact-proof overhead transmission line insulator string according to claim 2, characterized in that: The insulator (1) is connected to the iron parts of the overhead transmission line via a pin (6) and a connector (7).

4. The contact-proof overhead transmission line insulator string according to claim 1, characterized in that: A reinforcing rib (52) is punched at the lower end of the wire clamp (5), and bending grooves (53) are provided on both sides of the connection between the reinforcing rib (52) and the wire clamp (5).

5. The contact-proof overhead transmission line insulator string according to claim 4, characterized in that: The wire clamp (5) is fixedly connected to the connecting seat (3) via a reinforcing rib (52).

6. The contact-proof overhead transmission line insulator string according to claim 1, characterized in that: The insulator (1) is connected to the cross arm of the electric pole via a ball head (2) and a positioning pin (4), and a wire clamp (5) wraps around the cross arm.

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