KR101618038B1

KR101618038B1 - supporting type Insulator of the power distribution line

Info

Publication number: KR101618038B1
Application number: KR1020160008743A
Authority: KR
Inventors: 황대연
Original assignee: (주)한맥이엔지
Priority date: 2016-01-25
Filing date: 2016-01-25
Publication date: 2016-05-04

Abstract

The present invention relates to a processing power distribution line and a processing power distribution line, in which, when an external force is applied upwardly to a machining distribution line, a joint part of the machining distribution line and the insulator is impacted to prevent the disconnection of the machining distribution line, As shown in FIG.

Description

The supporting type insulator of the power distribution line,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a supporting bracket for a working power distribution line in the field of power distribution technology, and more particularly to a bracket for supporting a working power distribution line when an external force is applied to the power distribution line, The present invention relates to a support-type insulator for a processing power distribution line in which securing between an insulating insulator and a solid iron is prevented from being released and safety is improved.

Electricity generated by the power plant is supplied to general consumers through power transmission lines and processing distribution lines through the boosting process.

The processing distribution line is installed at a high position from the ground because the high-voltage electricity is flowing, and is fixedly installed through an insulating insulator fixed to the upper rail installed at the upper end of the pole.

As mentioned above, the processing distribution line is installed at a high position and is managed relatively safely, but a direct impact can be applied to the processing distribution line due to inattention during work using a crane, an excavator, a ladder, or the like.

If the above-mentioned strong impact is applied to the processing power distribution line, the connection between the insulation insulator and the processing power distribution line is canceled, and if the power distribution line falls or the power distribution line is severely broken, . Also, the connection between the insulator and the bare iron may be released.

A number of prior arts for alleviating the impact applied to the insulator such as those disclosed in Patent No. 0873746 (December 5, 2008) are disclosed, and in particular, Patent No. 1112080 discloses that the fastener is not fluid, There is a high possibility that the power distribution line is broken when applied to the battery, and furthermore, the piston lifting operation must be smoothly performed to increase the buffering function.

Korean Patent Registration No. 10-0873746 (December, 2008) "Insulated Support Insulator of Distribution Line" Korea Patent Registration No. 10-1112080 (Jan. 27, 2012) "Insulation insulator to prevent derailment of power distribution line"

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide an insulated insulator, The electric power line which is fixed is moved to the upper side to reduce the impact applied to the insulator insulator, the power line, and the joint between the insulator insulator and the bare iron. By increasing the tension of the power line caused by the external force by rotating the insulator insulator, And to provide a supporting insulator for a processing distribution line which increases the stability of the connection of the power distribution line and the insulator insulator.

Particularly, the present invention has a further object of providing a method and a device for controlling the operation of a processing distribution line, in which a fastening block is rotatable in a self-rotatable manner to have a fluidity so as to freely perform a rotation buffering function for a distribution line, There is another purpose in providing a support type insulator.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the prior art, and an object of the present invention is to provide a semiconductor device having a body 10 constituting an insulating insulator; A cylinder 21 which is fixedly installed through the main body 10 in the shape of a square frame having air vents 21a and 21b formed on the upper and lower surfaces thereof and a rubber material A piston 22 having a membrane 22a formed on the inner surface of the cylinder 21 so as to be movable up and down, A fastening table 24 which is fastened to the upper end of the moving table 23 and fastened to enclose the power distribution line L, A moving part 20 having a fixing table 25 which is pulled out of the piston 22 so as to move through the lower surface of the cylinder 21 and is inserted into and removed from the fixing groove 1a of the wrought iron 1; A rotary table (30) fixed at one end to the lower surface of the cylinder (21) and rotatably installed at the other end of the cylinder (21); And one end thereof is fixed to the lower surface of the cylinder 21 and the other end thereof is inclined to the outer side of the body 10 so as to be spaced from the upper surface of the wrought iron 1, And a cushioning member (40) made of a rubber material that comes into contact with the upper surface of the barb (1) when the barb (20) rotates by a predetermined angle or more,

The main body 10 is composed of 20-30 parts by weight of talc crushed to 0.1-0.5 mm, 100 parts by weight of behenic acid (Behenic acid), 100 parts by weight of polypropylene resin containing 25% 10 to 15 parts by weight of dioctyl azide (DOA), 15 to 25 parts by weight of dolomite finely ground to a particle size of 0.5 to 1.0 占 퐉, (100) are mutually fitted and stacked to be adjustable in height; The receiving plate 110 is screwed to the lower end of the cylinder 21; An assembly groove 210 having a predetermined size is formed below the inner diameter of the split body 100 fitted to the cylinder 21; A fixing hook 220 is vertically protruded downward on the ceiling surface of the mounting groove 210; The fixing hooks 220 are formed at two intervals of 180 degrees along the circumferential direction of the fitting groove 210; The upper end of the split body 100 is shaped to have an outer diameter that can be fitted into the fitting groove 210; A unit mounting groove 230 is formed in an upper inner diameter of the split body 100 in an opposite shape to the assembly groove 210; The binding unit 300 is fixed to the unit mounting groove 230; The binding unit 300 is installed at a number corresponding to a position corresponding to the fixing hook 220; The binding unit 300 includes a unit cover 320 assembled with the unit housing 310; A pair of elongated guide holes 330 are formed on both sides of the unit housing 310 so as to be symmetrical; The guide protrusion (340) is fitted in the guide hole (330) from the inside to the outside; The guide protrusion 340 is integrally fixed perpendicularly to a part of the length of the flow hook 350; The flow hooks (350) are arranged such that the pairs are opposed to each other; An elastic spring (360) is interposed between the inner wall of the unit housing (310) and the vertical portion of the flow hook (350); The upper surface of the flow hook 350 is formed to be inclined downwardly in the direction opposite to each other, and the lower surface is inclined symmetrically with respect to the upper surface. An operation hole (370) is formed on the upper surface of the unit cover (320) so that the fixing hook (220) can be pulled out in a vertical direction; Wherein the upper end of the cylinder (21) is fixed so that the cap (250) is fastened and the uppermost distributing body (100) is not separated from the cylinder (21).

According to the present invention, when an external force is applied upwardly to a power distribution line, the fixed portion of the power distribution line and the insulator moves upward to reduce the impact applied to the insulator and the fixing portion of the power distribution line, Thereby increasing the stability of the fixing between the insulator and the bare iron.

In addition, since the fastening block is rotatable and has fluidity, it is possible to freely perform the rotation buffering function for the distribution line, and at the same time, the floating capacity of the piston is doubled, thereby achieving a stable buffering operation.

1 is a cross-sectional view of a supporting insulator of a processing distribution line according to the present invention,
Fig. 2 is a reference view for explaining the operation of the support-type insulator of the processing distribution line according to the present invention,
Fig. 3 is a reference diagram for explaining the operation of the support-type insulator of the processing distribution line according to the present invention,
4 is an exemplary view showing another example of a support-type insulator of a processing distribution line according to the present invention.
Fig. 5 is an exemplary diagram excerpted from the main part of Fig. 4;
Fig. 6 is a view showing an example in which the structure of a fastening band is modified in a support-type insulator according to 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.

The present invention uses a part of the prior art 0873746 as it is, and the improved part will be described later.

1 to 3, an insulating insulator for preventing derailment of a power distribution line according to the present invention includes a main body 10, a main body 10, A rotating unit 30 for rotatably fixing the main body 10 and the moving unit 20 to the wrought iron 1 and a main body 10 and a moving unit 20 are rotated And a buffer member 40 for preventing the main body 10 from directly contacting the wrought iron 1 and buffering the impact applied to the main body 10 and the moving unit 20. [

In the case of the main body 10, due to the external stress caused by the difference of the temperature change due to the influence of the air pollutants such as ultraviolet ray, dust, industrial dust and salinity in the state of high voltage applied, and external factors such as wind, snow, It is required to be excellent in durability and stain resistance because degradation progresses gradually due to mechanical stress such as thermal expansion and contraction among different kinds of materials.

Therefore, the main body 10 preferably includes a ceramic material, and may be manufactured using a polymer material.

The shape of the main body 10 is a shape in which the shape of a cap is overlapped with the shape of a normal insulator, and it can be manufactured in various shapes according to the intended use.

A through hole having a shape corresponding to the cross-sectional shape of the cylinder 21 is formed in the main body 10.

The moving part 20 includes a cylinder 21 inserted in a through hole formed in the main body 10 to guide the upward and downward movement of the piston 22 and a piston 22 movably installed inside the cylinder 21, A moving table 23 fixed on the upper surface of the piston 22 to transmit the up and down movement of the piston 22 to the clamping table 24, And a fastening table 24 for fastening and fixing.

The cylinder 21 is similar in function to a cylinder, which is typically used in an engine or the like and in which a piston reciprocates.

That is, a hollow 21e having a shape corresponding to the outer shape of the piston 22 is formed for the piston 22 to move up and down from the inside, and the outer shape of the cylinder may be a square frame shape or a cylindrical shape.

A first through hole 21c through which the first vent hole 21a and the moving rod 23 pass is formed on the upper surface of the cylinder 21 and a second through hole 21c through which the second vent hole 21b and the fixed base 25 penetrate Two through holes 21d are formed.

The first through hole 21c is formed on the upper surface of the cylinder 21 so as to correspond to the sectional shape of the moving table 23 so as to pass through the outside of the cylinder 21 and the hollow 21e, The piston 22 can move up and down according to the movement of the piston 22. [

The second through hole 21d is formed on the bottom surface of the cylinder 21 so as to correspond to the sectional shape of the fixing table 25 so as to pass through the outside of the cylinder 21 and the hollow 21e, And moves up and down through the hole 21d.

The first and second ventilation openings 21a and 21b are opened and closed by the movement of the piston 22 when the piston 22 is in close contact with the hollow 21e of the cylinder 21 and moves up and down. So that the piston 22 can be smoothly moved up and down.

If the first and second air openings 21a and 21b are too large, the air inside the hollow 21e is easily discharged and the piston 22 moves easily without a large resistance in the hollow 21e. If the first and second air openings 21a and 21b are too small, The air in the hollow 21e is hardly discharged and the piston 22 is hardly moved.

Thus, the first and second air openings 21a and 21b should be formed so that the piston 22 can move while being subjected to a resistance of an appropriate air pressure.

The piston 22 is made of a synthetic resin material having a high strength, and a thin film 22a formed of rubber is formed on the outer surface of the piston 22.

The piston 22 is provided movably in close contact with the outer surface of the hollow portion 21e and is provided with a lubricant or the like when the friction between the membrane 22a and the outer surface of the hollow portion 21e is large, The membrane 22a and the hollow 21e can be brought into close contact with each other to prevent air from leaking out.

The movable base 23 is fixed to the upper surface of the piston 22 with its lower end fixed to the upper surface of the piston rod 22, and a fastening base 24 is fixed to the upper end thereof.

The moving base 23 transfers an external force, which is applied when an external force is applied to the power distribution line L, to the piston 22, thereby causing the piston 22 to move up and down.

The fastening table 24 is fixed to the upper end of the moving table 23 and fixes the power line L by fastening it.

The fastening table 24 can be applied to various structures capable of fastening and fixing the power distribution line L.

In one embodiment, the power supply line L may be inserted into a pipe and then fastened using bolts or the like.

The fixing table 25 is rod-shaped, one end of which is fixed to the lower end of the piston 22, and is provided so as to pass through the second through hole 21d.

The other end of the fixing table 25 is inserted into and removed from the fixing groove 1a formed on the upper surface of the wrought iron 1 in accordance with the upward and downward movement of the piston 22, Prevent rotation.

The rotary table 30 rotatably fixes the main body 10 and the movable portion 20 to the wax iron 1 via the rotary shaft 1b.

One end of the pivot 30 is fixed to the lower surface of the cylinder 21 and the other end is pivotally installed through a cylindrical pivot shaft 1b fixed to the wrought iron 1.

The buffer member 40 is fixed to the lower surface of the cylinder 21 so as to be inclined in the outer direction of the body 10 in the form of a slanting cylinder or a square frame of rubber material so as to serve as a buffer.

The other end of the buffer member 40 is spaced apart from the upper surface of the wrought iron 1 by a certain distance. When the main body 10 and the moving portion 20 are rotated, the main body 10 can collide with the corner portion of the wrought iron 1 made of a metal material and the main body 10 and the moving portion 20 are rotated The main body 10 is broken or the coupling between the main body 10 and the moving part 20 is weakened and the main body 10 and the moving part 20 ) May be separated.

The cushioning member 40 is brought into contact with the bare iron 1 before the main body 10 contacts the bare iron 1 when the main body 10 and the moving unit 20 are rotated, And is also made of a rubber material so as to alleviate the impact of the impact caused by the impact between the buffer member 40 and the wrought iron 1 on the body 10 and the moving unit 20. [

Further, the buffer member 40 is fixed only on the lower surface of the cylinder 21 so that the impact is not directly transmitted to the main body 1. [

The operation of the support-type insulator of the processing distribution line according to the present invention will be described with reference to Figs. 2 to 3. Fig.

An external force applied to the power distribution line L is applied to the piston (not shown) through the fastening base 24 and the moving base 23 when an external force is applied to the power distribution line L from the bottom upwards through the worker's carelessness during an operation using an excavator, 22, and the piston 22 is moved upward by the external force.

This is because the force is applied in the upward oblique direction of the fastening table 24 by the resultant of the tension of the power distributing line L facing the external force direction and the upward external force, but the piston 22 can not move left and right, It moves upward. The upward movement of the piston 22 increases the air pressure inside the hollow 21e, and the upward movement of the piston 22 is subjected to the buffering action by the increased air pressure.

Also, the air inside the increased hollow 21e escapes through the vent 21a to the outside of the hollow 21e, and the upward movement of the piston 22 is continued.

The increase in the amount of the impact applied to the connection portion between the power distribution line L and the insulator by the rise of the piston 22 is reduced and the coupling between the power distribution line L and the insulator insulator, do.

The fixing table 25 fixed to the piston 22 is also raised by the rise of the piston 22 and the fixing table 25 is moved upward by the lifting of the fixing table 25 to the fixing table 25 and the fixing groove 1a formed in the wrought iron 1 The coupling is released.

The main body 10 and the moving part 20 are rotatable when the insertion of the fixing table 25 which has prevented the rotation of the main body 10 and the moving part 20 is released, The tension of the distribution line L is increased by the external force and the main body 10 and the moving section 20 are rotated in the direction in which the external force is applied by the increased tension.

The above-described rotation reduces the increased tension to prevent weakening or release of the connection between the distribution line L and the insulation insulator, insulation insulator and the bare metal 1 due to the tension.

When the main body 10 and the moving unit 20 are rotated, the ends of the cushioning members 40, which are provided at the lower ends of the cylinders 21 in the outward direction of the main body 10, As shown in FIG.

The cushioning member 40 prevents the main body 10 from coming into contact with the rough iron 1 and buffers the shock applied to the main body 10 and the moving portion 20.

The buffer member 40 is provided at the lower end of the cylinder 21 so that direct impact through the buffer member 40 is transmitted to the cylinder 21 without being transmitted to the body 10, There is an effect to protect.

The modification of the present invention is based on the fact that the main body 10 constituting the insulator is largely made of a ceramic material and thus has a high risk of being damaged by an impact or the like. Thereby improving the controllability of the bedding to a limit that can not be controlled, thereby further providing a method of selectively controlling the bedding height as needed.

For this purpose, in the present invention, the body 10 is formed by injection-molding a strength reinforcing resin composition, not a ceramic material, so that multi-layered layers are stacked and assembled.

At this time, the strength-reinforced resin composition is required to have a strength of 110 MPa or more and electrical insulation essentially, so that the strength-reinforced resin composition is required to have a strength of 0.1-0.5 in terms of 100 parts by weight of a polypropylene resin containing 25% by weight of glass fibers of 2-3 mm- 20 to 30 parts by weight of ground talc, 10 to 15 parts by weight of behenic acid, 10 to 15 parts by weight of dioctyl azide (DOA), 15 to 30 parts by weight of dolomite fine powder 15- 25 parts by weight.

Here, the talc is a kind of mineral which is insulated against electricity, strong in absorbency and fixability in powder form, and excellent in refractory properties and used as a refractory material and filler. However, since the hardness is low, 20-30 parts by weight is added in the present invention.

If the amount of the behenic acid exceeds 15 parts by weight, the hardening is inhibited. If the amount of the behenic acid is less than 10 parts by weight, the lubricity is lowered.

The amount of dioctyl azide (DOA) added to increase the plasticity of the resin while increasing the cold resistance. When the amount is less than 10 parts by weight, plasticity and cold resistance deteriorate. If more than 15 parts by weight, moldability is deteriorated. Range.

In addition, the dolomite is added as a typical refractory material to increase the strength, and the molding property is deteriorated when it is added in an excessive amount.

As a result of the strength test after the injection with the composition thus formed, the strength was found to be 156 MPa, the insulation characteristics of the season were satisfied, no breakage was caused by collision, and the formability was remarkably higher than that of the conventional insulator made of a ceramic material Respectively.

4, the main body 10 according to the present invention includes a plurality of split members 100 and is configured to be able to control the height by stacking them together.

However, the structure of the cylinder 21 must be slightly modified in order to fit and fix the improved minute changeover body 100 according to the present invention to the cylinder 21. Therefore, only the deformed portion of the cylinder 21 is shown in FIG. 4, the internal structure illustrated in FIG. 1 is omitted, and only a portion shown from the outside is shown.

That is, the receiving plate 110 is screwed to the lower end of the cylinder 21.

In order to fix the split body 100 to the cylinder 21, at least one long bolt fastening groove (not shown) is formed in a part of the outer circumferential surface of the cylinder 21 so that a large number of the split bodies 100 are sequentially stacked in the cylinder 21. [ (120) is formed.

In addition, an elongated bolt hole 140 is formed in the split body 100 to accommodate the elongated bolt 130.

Therefore, when the split bodies 100 are inserted into the cylinder 21 and then bolted with the long bolt 130, the split bodies 100 are firmly fixed.

However, such a structure may be troublesome in comparison with robustness. Therefore, such a long bolt 130 fixing method can be selectively applied to the present invention.

For example, if a fastening structure of the long bolt 130 is selectively added in addition to the assembly fixing structure of the split units 100 to be described later, a more stable and rigid insulator mounting structure can be achieved.

According to the present invention, the installation structure of the long bolt 130 is optional, and the main body 100 is configured such that it can be automatically engaged and locked until the splitters 100 are stacked on each other.

An assembling groove 210 having a predetermined size is formed on the lower inner side of the partition body 100, that is, the inner circumferential surface of the hole of the cylinder 21, (220) vertically protrudes downward.

At this time, it is preferable that the fixing hooks 220 are formed two at intervals of 180 degrees along the circumferential direction of the assembly groove 210.

The upper end of the split body 100 is formed to have an outer diameter that can be fitted into the fitting groove 210. The lower end of the split body 100 is formed with a unit mounting groove 210, And the binding unit 300 is fixed to the unit mounting groove 230. [

At least two through holes (240) are formed in the upper circumferential surface of the split body (100), so that the split body (100) is easily fitted by inducing a slight elastic deformation when it is fitted into the fitting groove (210).

Therefore, it is preferable that the through hole 240 has an elliptical shape.

In addition, the binding unit 300 is provided in a number corresponding to the position corresponding to the fixing hook 220, and the shape is the same as the example of FIG.

The binding unit 300 is formed as a case in which the unit cover 320 is assembled to the unit housing 310. The pair of guide holes 330 are formed on both sides of the unit housing 310 in a bilaterally symmetrical manner, The guide protrusion 340 is fitted in the guide hole 330 from the inside to the outside.

The guide protrusions 340 are integrally fixed perpendicularly to a part of the length of the flow hook 350, and the flow hooks 350 are arranged to face each other as shown in FIG.

Accordingly, the flow hook 350 is configured to be horizontally movable in a floating state inside the unit housing 310 due to the guide protrusion 340, and the inner hook of the unit housing 310 and the flow hook 350 The resilient spring 360 is interposed between the vertical portions.

As a result, a pair of the flow hooks 350 are disposed to face each other at a central portion of the unit housing 310 as shown in FIG.

Particularly, the upper surface of the flow hook 350 is formed to be inclined downward in the direction opposite to each other, and the lower surface is inclined more symmetrically than the upper surface.

In this case, the reason for forming the inclination on the lower surface is to facilitate separation of the fixing hook 220. That is, when the force is pulled by the vector component force, the flow hook 350 is easily pushed out. Since it needs a strong force to push it, it is not easily opened and separated.

Likewise, the upper surface of the fixed hook 220 is also inclined corresponding to the inclination formed on the lower surface of the flow hook 350, and the lower end surface of the fixed hook 220 is inclined correspondingly to the inclination formed on the upper surface of the flow hook 350 .

An operation hole 370 is formed on the upper surface of the unit cover 320 so that the fixing hook 220 can be vertically pulled out.

When the fixed hooks 350 are brought into contact with the upper surface inclination of the flow hooks 350 through the operation holes 370 while the split bodies 100 are stacked on each other, The fixing hooks 220 are completely inserted into the unit housing 310 through the gap between the floating hooks 350. [

Then, the flow hook 350 is tightened again, and the fixed hook 220 is engaged and fixed.

If the split switch 100 is lifted for separation, the fixed hook 220 can be separated by the above-described opposite operation. In this case, a force twice as much as that in the fixed state is required.

This is because the inclination of the upper surface of the fixing hook 220 and the lower inclination of the flow hook 350 are gentler than the inclination of the lower end surface of the fixed hook 220 and the inclination of the upper surface of the flow hook 350.

With this structure, since the split members 100 are simply separated and separated by simply stacking the split members 100, the split members 100 can be separated and released, so that a stable coupling relationship can be maintained.

The upper end of the cylinder 21 is fixed so that the uppermost distributing body 100 is not separated from the cylinder 21 by fastening the cap 250.

In addition, as shown in FIG. 6, by deforming the structure of the fastening table 24, it becomes easier and easier to grasp the distribution line L. FIG.

That is, a coupling groove 410 is formed on the upper surface of the movable base 23 as a cylinder rod and the lower end of the coupling base 24 is screwed into the coupling groove 410, Are formed so as to be jointed to each other, and the upper end is configured to be bent like a hook to hook the power distribution line L.

Due to the ball joint 420, the hooking portion 430, which is the upper end of the fastening bar 24, has an influence on the directionality regardless of the number of revolutions of the fastening bar 24 to be screwed into the fastening groove 410 It can be easily and conveniently connected to the distribution line L.

Also, in the structure for fixing the power distribution line L, one end of the latch 440 hinged to the end of the hooking part 430 is inserted into the tightening bolt 450 fastened to the body of the fastening band 24, The bolt 450 can be easily fixed by tightly tightening it.

At this time, since the power distribution line L has a coating, when the cover 4 is clamped to the tightening bolt 450 by tightening the cover, the power distribution line L can be firmly fixed without being moved.

One; Wanchul 10; A body 20; The moving part
21; Cylinder 22; Piston 23; Moving Base
24; Fastening base 25; A fixing table 30; Pivot
40; Buffer member L; Distribution line

Claims

A main body 10 constituting an insulator; A cylinder 21 which is fixedly installed through the main body 10 in the shape of a square frame having air vents 21a and 21b formed on the upper and lower surfaces thereof and a rubber material A piston 22 having a membrane 22a formed on the inner surface of the cylinder 21 so as to be movable up and down, A fastening table 24 which is fastened to the upper end of the moving table 23 and fastened to enclose the power distribution line L, A moving part 20 having a fixing table 25 which is pulled out of the piston 22 so as to move through the lower surface of the cylinder 21 and is inserted into and removed from the fixing groove 1a of the wrought iron 1; A rotary table (30) fixed at one end to the lower surface of the cylinder (21) and rotatably installed at the other end of the cylinder (21); And one end thereof is fixed to the lower surface of the cylinder 21 and the other end thereof is inclined to the outer side of the body 10 so as to be spaced from the upper surface of the wrought iron 1, And a cushioning member (40) made of a rubber material that comes into contact with the upper surface of the barb (1) when the barb (20) rotates by a predetermined angle or more,
The main body 10 is composed of 20-30 parts by weight of talc crushed to 0.1-0.5 mm, 100 parts by weight of behenic acid (Behenic acid), 100 parts by weight of polypropylene resin containing 25% 10 to 15 parts by weight of dioctyl azide (DOA), 15 to 25 parts by weight of dolomite finely ground to a particle size of 0.5 to 1.0 占 퐉, (100) are mutually fitted and stacked to be adjustable in height; The receiving plate 110 is screwed to the lower end of the cylinder 21; An assembly groove 210 having a predetermined size is formed below the inner diameter of the split body 100 fitted to the cylinder 21; A fixing hook 220 is vertically protruded downward on the ceiling surface of the mounting groove 210; The fixing hooks 220 are formed at two intervals of 180 degrees along the circumferential direction of the fitting groove 210; The upper end of the split body 100 is shaped to have an outer diameter that can be fitted into the fitting groove 210; A unit mounting groove 230 is formed in an upper inner diameter of the split body 100 in an opposite shape to the assembly groove 210; The binding unit 300 is fixed to the unit mounting groove 230; The binding unit 300 is installed at a number corresponding to a position corresponding to the fixing hook 220; The binding unit 300 includes a unit cover 320 assembled with the unit housing 310; A pair of elongated guide holes 330 are formed on both sides of the unit housing 310 so as to be symmetrical; The guide protrusion (340) is fitted in the guide hole (330) from the inside to the outside; The guide protrusion 340 is integrally fixed along a direction perpendicular to a part of the length of the flow hook 350; The flow hooks (350) are arranged such that the pairs are opposed to each other; An elastic spring (360) is interposed between the inner wall of the unit housing (310) and the vertical portion of the flow hook (350); The upper surface of the flow hook 350 is formed to be inclined downwardly in the direction opposite to each other, and the lower surface is inclined symmetrically with respect to the upper surface. An operation hole (370) is formed on the upper surface of the unit cover (320) so that the fixing hook (220) can be pulled out in a vertical direction; Wherein the upper end of the cylinder (21) is fixed so that the cap (250) is fastened and the uppermost distributing body (100) is not separated from the cylinder (21).