Insulator ball socket connection anti-drop locking device for overhead transmission line

Abstract

The utility model discloses an insulator ball socket connection anti-drop locking device for an overhead transmission line, which comprises a ball socket connecting assembly, a mounting hole is arranged on one side of the ball socket connecting assembly at the connecting position, a socket inlet is arranged on the other opposite side of the ball socket connecting assembly, the mounting hole is communicated with the socket inlet, and the insulator ball socket connection anti-drop locking device is characterized by further comprising a locking piece, a butterfly nut and a cotter pin. One end of the locking piece penetrates through the mounting hole and extends out of the mounting hole, and the other end of the locking piece is embedded in the nest inlet; the butterfly nut is in threaded connection with the extending end of the locking piece, a through hole is formed in the extending end, and the cotter pin penetrates through the through hole. The locking block is inserted into the connection part of the ball socket connection assembly, the screw rod at the end part of the locking block extends out of the round hole of the ball socket and is tightened by adopting the matched butterfly nut, and finally the cotter pin is inserted into the end part of the screw rod, so that the anti-loosening and anti-dropping effects of the locking device are further improved, the reliability and the safety of the operation of the insulator are ensured, and the operation and maintenance cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to insulator technical field especially relates to insulator ball socket connection anti -drop locking device for overhead transmission line. BACKGROUND

[0002] As a special insulation control, insulator is an important component of transmission line, and plays an important role in overhead transmission line. In recent years, the scale of power grid is continuously expanded, the structure is increasingly complex, the construction of extra-high voltage transmission line, the upgrading of regional power grid, and the active participation in overseas power grid construction, the number of insulators used in China is continuously increased. At the same time, different working conditions also put forward higher requirements for the stable operation of insulators.

[0003] At present, the insulator string element connection form of overhead transmission line mainly adopts ball socket, and the ball socket connection locking pin basically adopts R type and W type. When the insulator runs in strong wind area, the conductor will vibrate with the wind, the locking pin will be affected by factors such as quality, installation omission and extrusion deformation of the insulator string during lifting, the locking pin will be pulled out, and the insulator string will be pulled out, so it is necessary to regularly inspect and replace the pulled out locking pin, which increases the cost of line operation and maintenance in strong wind area. In order to ensure the stability and safety of overhead transmission line under special working conditions such as strong wind, it is urgent to develop an insulator ball socket connection locking device with anti -drop function, which can effectively reduce the operation and maintenance intensity and cost. SUMMARY

[0004] In view of the above technical deficiencies, the utility model aims at providing an insulator ball socket connection anti -drop locking device for overhead transmission line to solve the existing problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] An insulator ball socket connection anti -drop locking device for overhead transmission line, comprising a ball socket connecting assembly, the ball socket connecting assembly is provided with a mounting hole on one side of the connecting position, and a socket entrance is provided on the opposite side, the mounting hole is communicated with the socket entrance, further comprising a locking piece, a butterfly nut and a split pin, one end of the locking piece is arranged in the mounting hole and protrudes from the mounting hole, the other end of the locking piece is embedded in the socket entrance, the butterfly nut is threadedly connected with the protruding end of the locking piece, the protruding end is provided with a through hole, and the split pin is arranged in the through hole.

[0007] Preferably, the locking piece comprises an L-shaped locking block and a locking screw fixedly connected with one end of the L-shaped locking block in a horizontal direction; the locking screw comprises a through portion penetrating the mounting hole and a locking portion protruding from the mounting hole, and the locking portion is provided with the through hole in a vertical direction; the L-shaped locking block is matched with the socket entrance and is embedded in the socket entrance.

[0008] Preferably, the winged nut is threadedly connected with the locking portion.

[0009] The ball socket connecting assembly is inserted with the locking block at the connecting position, the locking block end screw is protruded from the ball socket hole, the matched winged nut is tightened, and finally the split pin is inserted at the end of the screw, so that the anti-loosening and anti-falling effects of the locking device are further improved; the structure design is simple, the operation is convenient and fast, the operation intensity of the installation operator is greatly reduced, and the operation efficiency is greatly improved; the locking block of the insulator ball socket connecting anti-falling locking device for the overhead transmission line is fixed through the double anti-falling protection of the winged nut and the split pin, the reliability and safety of the insulator operation of the ball socket connection in the overhead transmission line in a strong wind or other special areas can be improved, the device can be universally applied to various distribution network conductors and has strong adaptability, and the number of operation and inspection operation and the replacement and maintenance of the locking pin can be reduced, which helps to reduce the long-term maintenance cost.

[0010] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the help of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a locking state structure schematic view of the insulator ball socket connecting anti-falling locking device for the overhead transmission line of the application;

[0012] Fig. 2 It is a connecting state structure schematic view of the insulator ball socket connecting anti-falling locking device for the overhead transmission line of the application.

[0013] The reference signs are explained as follows: 1, ball socket connecting assembly; 2, mounting hole; 3, socket entrance; 4, locking piece; 5, winged nut; 6, split pin; 7, through hole; 8, L-shaped locking block; 9, locking screw; 10, locking portion. DETAILED DESCRIPTION

[0014] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Please see Figs. 1-2 This application discloses an anti-detachment locking device for ball-and-socket connections of insulators used in overhead transmission lines, comprising a ball-and-socket connection assembly 1. The assembly 1 has a mounting hole 2 on one side of the connection point and a socket inlet 3 on the opposite side, with the mounting hole 2 communicating with the socket inlet 3. The device further comprises a locking element 4, a wing nut 5, and a cotter pin 6. One end of the locking element 4 passes through and extends out of the mounting hole 2, while the other end is embedded in the socket inlet 3. The wing nut 5 is threadedly connected to the extended end of the locking element 4, and the extended end has a through hole 7. The cotter pin 6 passes through the through hole 7. By setting the locking element, wing nut, and cotter pin, and by using the double anti-detachment fixing of the locking element and the wing nut and cotter pin, the device prevents the locking pin from falling off due to vibrations caused by conductor galloping during insulator operation caused by strong winds, thus preventing insulator string failure.

[0019] Furthermore, the locking component 4 includes an L-shaped locking block 8 and a locking screw 9 fixedly connected to one end of the L-shaped locking block 8 in the horizontal direction; the locking screw 9 includes a through portion passing through the mounting hole 2 and a locking portion 10 extending out of the mounting hole 2, and the locking portion 10 has the through hole 7 in the vertical direction; the L-shaped locking block 8 matches the socket inlet 3 and is embedded in the socket inlet 3; by inserting the locking block at the connection of the ball socket connecting assembly, the screw at the end of the locking block protrudes from the ball socket round hole, is tightened with a matching wing nut, and finally a cotter pin is inserted at the end of the screw, which further improves the anti-loosening and anti-disengagement effect of the locking device.

[0020] Furthermore, the wing nut 5 is threadedly connected to the locking part 10.

[0021] This application discloses an anti-loosening locking device for ball-and-socket connections of insulators used in overhead transmission lines. A locking block is inserted at the connection point of the ball-and-socket connection assembly, with a screw protruding from the round hole of the ball socket. A matching wing nut is used for tightening, and a cotter pin is inserted at the end of the screw, further enhancing the anti-loosening and anti-detachment effectiveness of the locking device. The design is simple and easy to operate, greatly reducing the workload of installation personnel and significantly improving work efficiency. The locking block of this anti-loosening locking device for ball-and-socket connections of insulators used in overhead transmission lines is secured by a double anti-loosening protection of the wing nut and cotter pin, improving the reliability and safety of ball-and-socket connected insulators in special areas such as those with high winds. This device is widely applicable to various distribution network conductors, exhibiting strong adaptability. It also reduces the frequency of maintenance inspections and the replacement of locking pins, helping to lower long-term maintenance costs.

[0022] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0023] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ball-and-socket connection anti-derailment locking device for insulators used in overhead transmission lines, comprising a ball-and-socket connection assembly (1), wherein the ball-and-socket connection assembly (1) has a mounting hole (2) on one side of the connection point and a socket inlet (3) on the opposite side, the mounting hole (2) and the socket inlet (3) being connected, characterized in that, It also includes a locking element (4), a wing nut (5), and a cotter pin (6); one end of the locking element (4) passes through the mounting hole (2) and extends out of the mounting hole (2), and the other end of the locking element (4) is embedded in the recess inlet (3); the wing nut (5) is threadedly connected to the extended end of the locking element (4), the extended end is provided with a through hole (7), and the cotter pin (6) passes through the through hole (7).

2. The anti-derailment locking device for insulator ball socket connection in overhead transmission lines as described in claim 1, characterized in that, The locking component (4) includes an L-shaped locking block (8) and a locking screw (9) fixedly connected to one end of the L-shaped locking block (8) in the horizontal direction; the locking screw (9) includes a through portion passing through the mounting hole (2) and a locking portion (10) extending out of the mounting hole (2), and the locking portion (10) has the through hole (7) in the vertical direction; the L-shaped locking block (8) matches the recess entrance (3) and is embedded in the recess entrance (3).

3. The anti-derailment locking device for insulator ball socket connection in overhead transmission lines as described in claim 2, characterized in that, The wing nut (5) is threadedly connected to the locking part (10).

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