KR101293716B1 - Insulator for very high voltage distribution line - Google Patents

Abstract

PURPOSE: An insulator for extra high voltage distribution overhead lines is provided to maintain a stable state, by absorbing the impact of the horizontal shaking. CONSTITUTION: A main body (10) is made of ceramic materials. A wire fixing part (20) comprises a holder supporting shaft (21) and a holder (22). A first buffer part (30) is inserted into the top of the main body to a given depth downwardly. The top of an operating rod (40) is buried into the bottom of the main body upwardly. A second buffer part (50) includes a case and a leaf spring.

Description

Insulator for very high voltage distribution line

The present invention relates to a connection insulator of an extra-high voltage distribution wire, more specifically, the processing wire that is fixed to the top of the insulator is shaken severely by the wind, etc., while the impact on the site connected to the solid iron with the site to fix the processing wire The present invention relates to a connection insulator of an extra-high voltage distribution overhead wire that enables instant response while minimizing impact and at the same time automatically lubricates the cylinder.

In general, the electricity generated by a power plant is supplied through high-voltage transmission and distribution lines to substations and demands of industries and households.

Transmission and distribution lines for supplying electricity from power plants to substations are made through steel towers, and steel towers also vary in shape depending on the transmission power or voltage or terrain of the line.

Pylons usually support three-phase two-wires, or six wires, as insulators, and the distance between the pylons is 20 to 30m, and the wires installed on the pylons have the lowest height from the surface by electrical equipment technology.

However, if the track crosses a river or a deep valley, the steel wire becomes stronger because the span becomes longer and the tension of the wire increases.

At this time, the power distribution line is usually installed in a high position, so that it is relatively safe to manage, but when working with cranes, excavators, ladder cars, etc., due to the caution of work may directly impact the transmission line.

The transmission and distribution line is fixed to the finished steel through the insulator insulator, and when a strong impact is applied to the transmission line, the coupling site between the insulation insulator and the transmission line is broken and the coupling is loosened or the transmission line falls. This break may cause electric shock.

In order to alleviate the shock applied to these insulators, Patent Registration No. 1112078 (2012.01.27. Name: Insulation Insulator for Transmission Line Installation of Special High Voltage) and Patent Registration No. 1112080 (Name: 27.2012. Many technologies have been published, including insulating insulators.

However, in the above-mentioned patent of the prior art, the piston in the cylinder is lifted and operated by the flow of air through the air vent formed in the upper and lower parts of the cylinder, so the operability of the piston due to the shaking of the transmission and distribution line is not immediately achieved, so that the transmission and distribution line is connected. While the impact load at the clamping part is still large, there is a problem in that the risk of electric shock accident due to the fall or disconnection of the transmission and distribution line and the use life of the insulator due to the breakage of the clamping part remain.

Patent Document 1 Patent Registration No. 1112078 (Jan. 27, 2012) Name: Insulated Insulator for Transmission Line Installation of Special High Voltage Patent Document 2: Patent Registration No. 1112080 (January 27, 2012) Name: Insulation Insulator to Prevent Derailment of Distribution Lines

Accordingly, the present invention is to solve the above problems, the present invention is to be able to automatically return while absorbing the shock applied by the up and down and left and right shake of the processing wire to always maintain a stable state and high safety The purpose is to provide a connection insulator for extra-high voltage distribution overhead cable.

The present invention for achieving the above object, the main body made of a ceramic material; An electric wire fixing part which is formed integrally with an upper end of the holder support shaft and the holder support shaft which is axially supported at an upper portion of the main body, and is provided with a holder for fixing the processing wires; The bottom of the elevating block and the elevating block which is integrally coupled to the lower end of the cylindrical cylinder and the holder support shaft to be opened upward while being inserted downward downward from the upper end of the main body so as to be able to elevate inside the cylinder. The lower spring and the lower spring which is weaker than the lower spring to the upper spring which is installed in the upper portion of the lifting block and the upper end of the cylinder while covering the upper circumference is provided with a cap fixed to the upper surface of the body by bolt coupling 1 buffer; An upper end of which is buried upward at the bottom of the main body, and having a lower end extending in a predetermined length, the lower end of which comprises a ring-shaped shaft fixing part; It is fixed to the wrought iron, and the upper part of the housing including the shaft portion of the operating rod is accommodated while the upper portion of the case and the upper portion of the shaft of the operating rod on the upper side of the case to allow the shaft portion to be rotatably axially supported The second shock absorbing portion is provided with a leaf spring which is urged to press the elasticity to a certain elasticity on both sides.

The shock generated by the shaking of the processing wire that is applied to the wire fixing part to which the processing wire is connected and the upper end of the main body through the connecting insulator of the special high-voltage distribution processing wire of the present invention according to the above configuration is significantly buffered in this area. To prevent damage or breakage of the wire at the same time to the shock to be shaken on both sides of the processed wire to be buffered at the fixed end side is effective to ensure that the part connected to the processed wire and the wire is securely maintained.

In addition, the present invention is an economic advantage that can minimize the maintenance cost by allowing the main body to be continuously used by a simple partial replacement even if the part directly connected to the processing wire and the part connected to the cast iron is damaged or reaches the end of life. have.

1 is a vertical cross-sectional view illustrating the connecting insulator of the extra-high voltage distribution overhead wire according to the present invention,
2 is an exploded cross-sectional view illustrating a structure in which the wire fixing part and the first buffer part are separated from the main body in the insulator of the extra-high voltage distribution overhead wire according to the present invention;
Figure 3 is an enlarged cross-sectional perspective view of the main portion illustrating a configuration in which the connecting insulator of the extra-high voltage distribution processing wire according to the present invention is connected to the finished steel,
4 and 5 are side cross-sectional views illustrating an operation structure when the processing wire is swinging up and down by the connecting insulator of the extra-high voltage distribution processing wire according to the present invention,
6 and 7 are front views illustrating the operation structure when the processing wire is rocked left and right by the connecting insulator of the extra-high voltage distribution overhead wire in accordance with the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

1 is a vertical cross-sectional view illustrating the connecting insulator of the extra-high voltage distribution overhead wire according to the present invention, as shown in the present invention is largely the main body 10, the wire fixing part 20 and the first buffer portion 30 and It is a structure provided as the operation rod 40 and the 2nd buffer part 50. As shown in FIG.

In the configuration of the present invention, the main body 10 is formed of an insulating material such as a polymer or ceramic formed by overlapping hat hats, and the wire fixing part 20 provided on the upper part of the main body 10 has a holder support shaft again. 21 and the holder 22, the holder support shaft 21 is a configuration consisting of a vertical rod shape is formed in a predetermined length extending upward while a predetermined length is inserted downward from the top of the main body 10, the holder 22 is configured to be integrally formed with the upper end portion of the holder support shaft 21 so that the processing wire is seated and firmly fixed.

The holder 22 has a structure for clamping the wires to be placed while the processed wires can be settled integrally provided, and the clamping method is already a variety of ways from simply by fastening the straps Since it is proposed, it can be used selectively.

The first shock absorbing portion 30 in the present invention is composed of a cylinder 31, a lifting block 32, a lower spring 33, an upper spring 34 and a cap 35.

2 is an exploded cross-sectional view illustrating a structure in which the wire fixing part and the first buffer part are separated from the main body in the insulator of the extra-high voltage distribution overhead wire according to the present invention.

As shown in the drawing, the cylinder 31 of the first shock absorbing portion 30 is a cylindrical configuration which is inserted downward from the upper end of the main body 10 and embedded therein. In particular, the cylinder 31 is upwardly opened so as to open upwardly. It is to be formed to prevent departure.

The lower spring 33 and the upper spring 34 in the lower portion of the elevating block 32 together with the elevating block 32 inside the cylinder 31 are to be installed.

The elevating block 32 may be detachably coupled to the lower end of the holder support shaft 21 of the wire fixing portion 20, or may be provided to be integrally coupled.

Therefore, the wire fixing part 20 together with the elevating block 32 is elastically supported by the lower spring 33 and the upper spring 34 provided at the lower and upper portions of the elevating block 32, respectively, in the cylinder 31. Elevation is possible at.

However, it is more preferable that the lower spring 33 has stronger elasticity than the upper spring 34 in view of the load of the overhead wire placed in the holder 22 of the wire fixing part 20.

In the first shock absorbing portion 30, the cap 35 covers the upper end of the upwardly open cylinder 31 so that the lift block 32, the lower spring 33 and the upper spring 34, which are accommodated therein, are separated. As a configuration for preventing, the holder support shaft 21 of the wire fixing part 20 is inserted into the center of the cap 35 so as to be liftable, and the outer circumferential end thereof is bolted to the upper surface of the main body 10 by bolts or the like. It is a configuration to be fixed.

The portion through which the holder support shaft 21 of the cap 35 penetrates is most preferably sealed by an O-ring 36 or the like so that foreign matters such as rainwater from the outside can be prevented.

In the main body 10, the wire fixing part 20 and the first shock absorbing portion 30 are formed on the upper side, and an operating rod 40 and the second shock absorbing portion 50 are provided at the lower portion thereof.

Figure 3 is an enlarged cross-sectional perspective view of the main portion illustrating a configuration in which the connecting insulator of the extra-high voltage distribution processing wire according to the present invention is connected to the finished steel.

As shown, the operation rod 40 of the present invention is configured so that the upper end portion is integrally embedded in the center of the bottom surface of the main body 10 so that a predetermined length is provided vertically downward.

The lower end of the actuating rod 40 forms a shaft fixing portion 41 formed in a ring shape by allowing the center to penetrate horizontally, and the shaft fixing portion 41 at this time allows the shaft fixing hole to penetrate in the longitudinal direction of the processing wire. desirable.

The operation rod 40 forming the shaft fixing portion 41 is connected to the wrought iron S through the second buffer part 50.

The second shock absorbing part 50 is composed of the case 51, the fixed shaft 52 and the leaf spring 53, the fixed shaft 52 and the leaf spring 53 is inserted into the case 51 The case 51 is inserted into the wanja (S) or to be detachably coupled by the bolt fastening at the top of the wanja (S).

The case 51 is empty inside and an operating hole 54 is formed in the upper surface with a width and a length through which the operating rod 40 can flow, and the operating rod 40 inserted through the operating hole 54. The shaft fixing part 41, which is the lower end of the shaft, is fixed to the shaft by the fixed shaft 52 at the lower part thereof.

The upper part of the shaft fixing portion 41 of the operating rod 40 is provided with a leaf spring 53 in a symmetrical shape with respect to the operating rod 40 on both inner sides of the case 51.

The leaf spring 53 is formed to be curved from the inner side surfaces of the case 51 to the surface in contact with the actuating rod 40 so that the actuating rod 40 is always pressurized by the leaf springs 53 on both sides. Keep it vertical.

Referring to the drawings the operation structure by the connecting insulator of the extra-high voltage distribution overhead wire according to the present invention having the configuration as described above is as follows.

The connecting insulator of the extra-high voltage distribution overhead wire of the present invention has the overhead wire fixing part 20 in the state where the second shock-absorbing portion 50 of the lower end is firmly fixed to the perfect iron S. It is held in a configuration that is securely fixed to the seat 22.

In such a state, if the worker touches the processing wire (L) around the worker during the wind or typhoon or track work, the processing wire (L) is rocking in the vertical direction or shake sideways.

4 and 5 are side cross-sectional views illustrating an operation structure when the processing wire swings up and down by the connecting insulator of the extra-high voltage distribution overhead wire according to the present invention.

As shown in the drawing, the connecting insulator of the extra-high voltage distribution overhead wire of the present invention maintains the operating rod 40 in a vertical state at all times by the leaf spring 53 of the second shock absorber 50. The processing wire (L) can be securely seated and fixed to the holder 22 provided to protrude a certain height upward.

When the overhead wire (L) is seated on the holder 22 is a fixed load is placed on the wire fixing portion 20 by the processing wire (L) of the lifting block 32 coupled to the lower end of the wire fixing portion (20) A constant load load acts on the lower spring 33 which supports the lower part.

In this state, if the overhead wire L is moved upward by an external force such as wind, the wire fixing part 20 is moved in the moving direction of the overhead wire L so that the lower spring 33 is moved by the elevating block 32. ) Becomes elastic, and the upper spring 34 contracts a certain height.

Since the contraction height of the upper spring 34 depends on the moving height of the processing wire L, the moving wire L is absorbed by the upper spring 34 to absorb the moving shock as much as possible. 20) can greatly reduce the impact on.

First of all, since the timing of the buffering from the moving point of the processing wire L is instantaneously made, the structure supporting the processing wire L is not affected by any impact caused by the movement of the processing wire L.

In addition, if the overhead wire (L) ascends a certain height immediately descends a certain height, at this time, the lower spring 33 immediately absorbs the shock against the falling load of the overhead wire (L) as opposed to the rising force to cushion the shock. do.

As a result, the moving load when the overhead wire L is shaken up and down is transmitted to the lifting block 32 to be buffered by the lower spring 33 or the upper spring 34, thereby fixing the actual overhead wire L. The wire fixing portion 20 is minimized the impact of the movement of the processing wire (L).

6 and 7 are front views illustrating the operation structure when the processing wire is rocked left and right by the connecting insulator of the extra-high voltage distribution overhead wire in accordance with the present invention.

As shown in the figure, when the overhead wire L connected to the wire fixing part 20 in the insulator of the extra-high voltage distribution overhead wire of the present invention is shaken laterally, the main body 10 moves sideways together.

If the processing wire (L) is moved to the left side together with the main body 10, the operation rod 40 integrally coupled to the main body 10 is moved to the left side, the case of the second buffer portion (50) ( 51) Since the shaft fixing portion 41 of the operating rod 40 is supported on the fixed shaft 52 therein, the main body 10 along with the operating rod 40 is fixed at an angle to the left side. Will rotate.

On the left side of the upper operation rod 40 of the shaft fixing portion 41 when the rotation to the left, a moving load of constant pressure is applied to the leaf spring 53 which is elastically loaded with the operation rod 40 to the right. The leaf spring 53 is absorbed and buffered.

The working wire (L) is moved to the left side and the operating rod 40 and the body 10 at the same time interlocking, and the pressure caused by the rotation of the operating rod 40 is gradually cushioned by the leaf spring 53 side To minimize the impact of the movement.

On the contrary, even when the processing wire L moves to the right side, the movement shock is buffered by the leaf spring 53 on the right side of the operating rod 40 in the same manner as when moving to the left side to minimize the moving shock.

In this way, when the processing wire L is shaken from side to side, the moving shock is absorbed by the plate spring 53 provided in the rotating direction while the main body 10 and the operation rod 40 rotate in the shaking direction, thereby making a buffer. To lose.

On the other hand, when the processing wire L is shaken by external force such as wind, the processing wire L does not swing only in one direction.

That is, since the side and the top and bottom at the same time shaking the main body 10 and the operating rod 40 rotates along this direction of movement, the lifting block 32 and the lower spring 33 and the upper spring of the first shock absorbing portion 30 ( 34) is to be buffered against the load load acting up and down to minimize the mechanical damage caused by the shaking of the processing wire (L).

As described above, the present invention allows the processing wire L to be buffered while interlocking along the moving direction by the external force, thereby greatly reducing the impact applied to the components for fixing the processing wire L or supporting the main body 10. It is possible to maintain more stable bearing capacity, and at the same time, to replace parts that are most loaded when necessary, thereby minimizing the cost of maintenance, and above all, to completely remove the breakage or disconnection of the overhead wire (L). Can be prevented to provide safe wiring management.

10: main body 20: front fixing
21: holder support shaft 22: holder
30: first buffer portion 32: lifting block
33: lower spring 34: upper spring
40: operating rod 41: storehouse
50: second buffer portion 53: leaf spring
L: Processed wire S: Finished

Claims (1)

A main body 10 made of a ceramic material;
Holder holder shaft 21 which is axially supported at a predetermined height in the upper portion of the main body 10 and the holder 22 is formed integrally with the upper end of the holder support shaft 21 to secure the processing wire (L) An electric wire fixing part 20 provided;
The cylinder 31 which is inserted downward from the upper end of the main body 10 at a predetermined depth to be opened upward and is integrally coupled to the lower end of the holder support shaft 21 to be elevated in the cylinder 31. Lifting block 32 and the lower spring 33 which is installed in the lower portion of the elevating block 32 and lower than the lower spring 33, the elastic force is weaker than the upper portion of the elevating block 32 A cap 35 having an outer circumference fixed to the upper surface of the main body 10 by bolting while covering the upper end of the spring 34 and the cylinder 31 and the holder support shaft 21 of the cap 35. A first buffer part 30 installed in a hole formed at a portion through which the penetrates) and includes an O-ring 36 for preventing the inflow of rain water;
An operating rod 40 having an upper end buried upward at the bottom of the main body 10 and extending downward in a predetermined length while forming a ring-shaped shaft fixing portion 41;
The case is fixed to the complete iron (S), including the shaft portion 41 of the operating rod 40, the upper portion is accommodated while being accommodated so that the shaft portion 41 is rotatably supported in the lateral direction ( 51 and a second shock absorbing portion (50) provided with a leaf spring (53) which is urged to press the upper portion of the shaft fixing portion (41) of the operating rod (40) to a certain elasticity on both sides of the case (51); Including but not limited to:
The case 51 is
Inserted into the groove formed in the upper portion of the wrought iron (S) or bolted to the upper portion of the wrought iron (S) is formed detachably coupled to the upper surface of the operating hole 54 through which the operating rod 40 can flow. And a connecting insulator of the high-voltage distribution processing wire, which is configured to include a fixed shaft 52 for rotatably fixing the shaft fixing part 41.

Images